Cummins - ISX CM870 Common Approach To Control System Diagnostics Manual - PDF DOWNLOAD

CM870 COMMON APPROACH TO CONTROL SYSTEM DIAGNOSTICS ENFORCER ’02

ISM ’02

Brian J. Ouellette HDD Controls Systems Integration Phase 5.4 Software

Cummins Inc. Confidential Materials

Jul 2002/Aug 2002

CM870 COMMON APPROACH TO CONTROL SYSTEM DIAGNOSTICS CM870 Common Approach To Control System Diagnostics.doc Full Production Version June 26, 2001 Please Forward Suggestions For Improvement To: Revision Number 06 Brian J. Ouellette

Where To Find This Document: CTC LAN: H:\hvyduty\HD Systems Integration\Common Approach To Diagnostics\P-CM870 I:\apex\02HD\methods\CM870 Common Approach\P-CM870 Internet: http://www.ctg.cummins.com/hdd/

Overview:

This document is intended to support on-site troubleshooting and diagnostics of customer complaints for 2002 Heavy-Duty engine platforms with the CM870 Controls System. This document can be used along with NGET or CalTerm for investigation, troubleshooting, and diagnosis of engine performance and electronic controls related issues.

Purpose:

The information contained in this document is based in part on documented tests and procedures best suited to support in-field efforts for Cummins CM870 heavyduty engine platforms. Much of this information comes from legacy procedures contained in the document “Common Approach To Diagnostics Using Calterm” authored by Wayne Eberhard and Richard Croft. Because the CM870 control system uses a new naming convention for engineering parameters, I have converted legacy information over to the new naming convention. In addition, the CM870 control system includes new control strategies for Air Handling and emissions to meet the 2002 requirements. Information on troubleshooting and diagnostics for these systems is included here. My intent for this document is to provide information and support to those in the field as well as those based in Cummins engineering facilities. With tools like NGET and CalTerm, documentation of data within this document will provide more detailed definition of engine conditions associated with specific issues. This information, along with driver comments and concerns, will help in achieving a better responsiveness to customer needs and allow us to develop products which meet or exceed customer expectations.

Brian J. Ouellette

DOCUMENT CONTENTS: • • • • • •

Data Logging Using Available Engineering Tools (Calterm and NGET) Troubleshooting And Diagnostics Parameter Guide CM870 Engineering States CM870 Fault Code List CM870 Control System Diagrams Customer / Driver Survey

THIS DOCUMENT SUPPORTS THE FOLLOWING SOFTWARE VERSION: HD02 Full Production ENFORCER ‘02 PHASE 5.4.3.0x SOFTWARE HD02 BETA ISM ‘02 PHASE 5.4.3.0x SOFTWARE

PV CM870 PV CM870

Brian J. Ouellette HD Controls Systems Integration (812) 377-7046 / pgr #888-966-7313 b.j.ouellette@cummins.com

Cummins Engine Co., Inc. Confidential

Created by Brian J. Ouellette

Page 2

CM870 COMMON APPROACH TO CONTROL SYSTEM DIAGNOSTICS Table of Contents: DOCUMENT CONTENTS: ......................................................................................................................2 Table of Contents: ...............................................................................................................................3 DATALOGGING USING AVAILABLE ENGINEERING TOOLS (CALTERM and NGET) .............................7 TROUBLESHOOTING AND DIAGNOSTICS PARAMETER GUIDE.........................................................10 2002 CM870 CONTROL SYSTEM........................................................................................................13 Critical Parameters List:....................................................................................................................13 1.

Mission Data Critical Parameters List .................................................................................................................................... 13

A/D Sensors: .....................................................................................................................................14 2.

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Ambient Air Pressure / Compressor Inlet Pressure ................................................................................................................ 14 Compressor Inlet Temperature / Ambient Air Temperature.................................................................................................... 14 Exhaust Pressure Sensor ..................................................................................................................................................... 14 EGR Orifice Temperature (EGR Return Temperature) ............................................................................................................ 14 EGR Valve Position Sensor................................................................................................................................................... 14 EGR Delta Pressure Sensor.................................................................................................................................................. 14 Charge Pressure Sensor / Boost Pressure ............................................................................................................................. 15 Charge Temperature Sensor / Intake Manifold Temperature.................................................................................................. 15 Turbocharger VG Actuator ............................................................................................................................................... 15 Turbocharger Speed Processing ....................................................................................................................................... 15 Coolant Temperature Sensor............................................................................................................................................ 15 Coolant Level Sensor ....................................................................................................................................................... 15 Oil Temperature Sensor ................................................................................................................................................... 16 Oil Pressure Sensor ......................................................................................................................................................... 16

HPI-TP Fuel Systems A/D Sensors:...................................................................................................16 16.

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Fuel Rail Pressure Sensor................................................................................................................................................. 16 Fuel Temperature Sensor................................................................................................................................................. 16 EPS (Engine Position / Engine Speed) Sensors .................................................................................................................. 16

Virtual Sensors: .................................................................................................................................17 19.

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EGR Fraction Estimation................................................................................................................................................... 17 Charge Flow Estimation ................................................................................................................................................... 17 Exhaust Temperature Estimation ...................................................................................................................................... 17 Exhaust Pressure Estimation ............................................................................................................................................ 17 Compressor Outlet Temperature Estimation ...................................................................................................................... 18 Compressor Inlet Density Estimation ................................................................................................................................ 18 Delta Pressure Estimation ................................................................................................................................................ 18 EGR Delta Pressure Autozero ........................................................................................................................................... 18 Ambient Parameters Estimation........................................................................................................................................ 19 Saturation Temperature Estimation................................................................................................................................... 19 IMT Prediction / IMT Lead-Lag Compensation ................................................................................................................... 19 EGR Return Temperature Lead-Lag Compensation ............................................................................................................ 19 Charge Temperature Estimation ....................................................................................................................................... 20 Charge Pressure Estimation.............................................................................................................................................. 20 Turbo Speed Estimation................................................................................................................................................... 20

Emission Features: ............................................................................................................................21 34.

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Torque Manager (TQM) ................................................................................................................................................... 21 Torque Parameter Determination (TQP)............................................................................................................................ 21 Net Torque Estimation ..................................................................................................................................................... 22 Pumping Torque Estimation ............................................................................................................................................. 22 Combustion Manager (CBM)............................................................................................................................................. 22 Combustion Parameter Determination (CBP) ..................................................................................................................... 22 Combustion Reference (CBR) ........................................................................................................................................... 23 Compensate For Off-Nominal Combustion Conditions (CBO)............................................................................................... 25 Combustion Limit Management (CBL) ............................................................................................................................... 25 Charge Manager (CHM) ................................................................................................................................................... 26 Charge Parameter Determination (CHP)............................................................................................................................ 26

Cummins Engine Co., Inc. Confidential

Created by Brian J. Ouellette

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Charge Limit Management (CHL)...................................................................................................................................... 26 Determine Charge System Errors (CSE) ............................................................................................................................ 26 Emissions Manager (EMM) ............................................................................................................................................... 26 Emission Reference (EMR) ............................................................................................................................................... 27 Compensate For Off-Nominal Emission Conditions (EMO)................................................................................................... 27 Condensation Protection AECD ......................................................................................................................................... 28 Air Handling System Protection AECD ............................................................................................................................... 28 Extreme Ambient Overheat AECD ..................................................................................................................................... 28 White Smoke / Misfire AECD ............................................................................................................................................ 28 Extended Idle / PTO AECD............................................................................................................................................... 28 General Engine Protection AECD....................................................................................................................................... 29 Engine Starting / Warm-Up AECD..................................................................................................................................... 29 Charge System Engine Protection ..................................................................................................................................... 29 EGR System Monitor (CHH).............................................................................................................................................. 29 EGR Valve Position Command .......................................................................................................................................... 30 EGR Valve Position Autozero ............................................................................................................................................ 30 VG Turbocharger Duty Cycle Command ............................................................................................................................ 30 VG Air Shutoff Valve Controls ........................................................................................................................................... 30

Performance Diagnostics: .................................................................................................................31 63.

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Charge Flow Derates [Charge Limit Manager (CHL)] .......................................................................................................... 31 Oxygen / Fuel Control (OFC) Fuel Limit............................................................................................................................. 31 Exhaust Temperature (Texh) Fuel Limit ............................................................................................................................ 31 Chi Determination............................................................................................................................................................ 31 Altitude Performance ....................................................................................................................................................... 32 EGR On Conditions .......................................................................................................................................................... 32 EGR Off Conditions .......................................................................................................................................................... 32 EGR Valve Controller........................................................................................................................................................ 32 VGT Pneumatic Controller ................................................................................................................................................ 32 EGR Motor Diagnostics..................................................................................................................................................... 33 EGR Delta P Sensor Diagnostics ....................................................................................................................................... 33 Torque Manager Derates ................................................................................................................................................. 33 EGR Valve and VGT Behavior ........................................................................................................................................... 34 Engine Brake Performance ............................................................................................................................................... 34 Clutch Engagement Performance...................................................................................................................................... 34 Engine Lug Up / Lug Down .............................................................................................................................................. 34 Torque Response ............................................................................................................................................................ 35 Coupled Controller Performance During Gear Shifts ........................................................................................................... 35 Coolant and IMT Advance Control..................................................................................................................................... 35 PTO Response................................................................................................................................................................. 35 Snap Throttle Response (HSG/LSG Stationary) .................................................................................................................. 36 Engine Start-Up............................................................................................................................................................... 36 Low Idle Stability, Stationary............................................................................................................................................ 36 PTO Pump-Off................................................................................................................................................................. 36 Throttle Characterization.................................................................................................................................................. 37 Snap Throttle Response (HSG, Bobtail) ............................................................................................................................. 37 Throttle Control / Stability, Bobtail.................................................................................................................................... 37 Idle In Gear, Bobtail ........................................................................................................................................................ 37 Gear Ratio Validation ....................................................................................................................................................... 37 Cruise Control Base Functionality...................................................................................................................................... 38 Road Speed Governor Base Functionality .......................................................................................................................... 38 Cruise Control Auto Resume............................................................................................................................................. 38 Cruise Control with Engine Brakes .................................................................................................................................... 38 Cruise Control Overshoot ................................................................................................................................................. 38 Road Speed Governor Overshoot...................................................................................................................................... 39 Reverse ESP / Take-Off ESP............................................................................................................................................. 39 High Idle Stability, Loaded Trailer..................................................................................................................................... 39 Throttle Control / Stability, Loaded Trailer......................................................................................................................... 39 Idle In Gear, Loaded Trailer ............................................................................................................................................. 39 Sensor Characterization ................................................................................................................................................... 40 Surge Characterization..................................................................................................................................................... 41 OFC and Texh Fuel Limits ................................................................................................................................................ 41 Dyno Performance Monitor............................................................................................................................................... 42

Application Features: ........................................................................................................................43 106.

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NDOT Governor............................................................................................................................................................... 43 All Speed Governor (ASG) ................................................................................................................................................ 43 High Idle Governor (HSG) ................................................................................................................................................ 43

Cummins Engine Co., Inc. Confidential

Created by Brian J. Ouellette

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CM870 COMMON APPROACH TO CONTROL SYSTEM DIAGNOSTICS 109.

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Low Idle Governor (LSG) ................................................................................................................................................. 43 Throttle Governor (Min/Max)............................................................................................................................................ 43 Power Take-Off Governor (PTO)....................................................................................................................................... 44 Road Speed Governor (RSG) ............................................................................................................................................ 44 Cruise Control Governor (CC) ........................................................................................................................................... 44 SOI Timing Control .......................................................................................................................................................... 44 SOI Timing Control – SOI Advance ................................................................................................................................... 44 Engine Start-Up / Cranking .............................................................................................................................................. 45 Engine Brake Manager..................................................................................................................................................... 45 Engine Fan Control .......................................................................................................................................................... 45 Alpha Determination ........................................................................................................................................................ 45 Noise Control – Speed Derates ......................................................................................................................................... 45 Smart Torque (ST Rating) ................................................................................................................................................ 46 Load Based Speed Controls (LBSC)................................................................................................................................... 46 CORS Centinel................................................................................................................................................................. 48 Automated Transmissions ................................................................................................................................................ 48 Powertrain Controls ......................................................................................................................................................... 48 Powertrain Protection ...................................................................................................................................................... 49 Limp Home Mode ............................................................................................................................................................ 49 Out Of Gear Protection .................................................................................................................................................... 49 Gear Down Protection...................................................................................................................................................... 49 Starter Lockout ............................................................................................................................................................... 49 Remote Throttle Control .................................................................................................................................................. 50 Remote PTO Control........................................................................................................................................................ 50 Idle Shutdown................................................................................................................................................................. 50 Turboconveyor ................................................................................................................................................................ 50 Ether Start Injection ........................................................................................................................................................ 50

Engineering Features: .......................................................................................................................51 136.

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User Overrides ................................................................................................................................................................ 51 Torque To Fuel Conversion .............................................................................................................................................. 51 Keyon Pressure Check Diagnostics.................................................................................................................................... 51 General Engine Protection (EPF)....................................................................................................................................... 51 In-Range Diagnostics....................................................................................................................................................... 54 ECM Parameters.............................................................................................................................................................. 54

HPI-TP Fuel System: .........................................................................................................................55 142.

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Fuel Systems Interface (FSI)............................................................................................................................................ 55 Engine Speed Processing (EPS) ........................................................................................................................................ 55 Fuel Pressure Compensation (PCC)................................................................................................................................... 55 Fuel Temperature Compensation (FTC/TTC) ..................................................................................................................... 55 Boost Pressure Compensation (BPC)................................................................................................................................. 55 Solid Fuel Height Determination (SFH).............................................................................................................................. 56 Estimated Valve Delay (EVD) ........................................................................................................................................... 56 Flow-To-Time Conversion (FTT) ....................................................................................................................................... 56 Cylinder Cut-Out Diagnostics (CTS) .................................................................................................................................. 56 Cylinder Balancing Diagnostics (CBD) ............................................................................................................................... 57 Fuel Pressure Diagnostics (FPD) ....................................................................................................................................... 57 Fuel Shut Off (FSO) Controls ............................................................................................................................................ 57 Fuel System Fault Derate Handler (FDH)........................................................................................................................... 57 CBD / ESP Based Unintended Fueling Diagnostics (CUFD) .................................................................................................. 58

Legacy Information...........................................................................................................................59 156.

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Hard Starting / Startup and Overshoot.............................................................................................................................. 59 Cold Starting ................................................................................................................................................................... 59 Clutch Engagement / Idle Overshoot ................................................................................................................................ 59 Throttle Control – Min / Max (Automotive Governor).......................................................................................................... 59 Throttle Control – All Speed (VS) Governor ....................................................................................................................... 60 Cruise Control / Road Speed / Geardown Governor Behavior.............................................................................................. 60 Cruise Control With Engine Brakes.................................................................................................................................... 60 Cruise Control With AutoResume ...................................................................................................................................... 61 Engine Braking ................................................................................................................................................................ 61 Low Power – Road Speed Governor.................................................................................................................................. 61 Low Power – Geardown Protection ................................................................................................................................... 61 Low Power – Boost Response Test ................................................................................................................................... 62 Throttle Characterization / Idle Validation Switches ........................................................................................................... 62 Low Idle Stability / Rough Idle ......................................................................................................................................... 62

Cummins Engine Co., Inc. Confidential

Created by Brian J. Ouellette

Page 5

CM870 COMMON APPROACH TO CONTROL SYSTEM DIAGNOSTICS 170.

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PTO Response / Stability.................................................................................................................................................. 63 No Load Friction / Light Load Throttle Control ................................................................................................................... 63 Turbo Surge Conditions ................................................................................................................................................... 63 ESP Performance (Hill Climbing) ....................................................................................................................................... 63 VSS Anti-Tampering......................................................................................................................................................... 64 Acceleration Noise Control ............................................................................................................................................... 64 Cold Temperature Stumble / IMT SOI Advance Control (White Smoke)............................................................................... 64 Road Speed Governor / Cruise Control Hiccup / Miss ......................................................................................................... 64 High Speed Governor Stability .......................................................................................................................................... 65 Stumble During Rapid Accel ............................................................................................................................................. 65 Ambient Air Pressure Sensor – Poor Engine Performance ................................................................................................... 65 Stationary Test – Brake Activation Delay........................................................................................................................... 65 Fan Drive Activation......................................................................................................................................................... 65 ECM Trip Information / Fuel Economy Accuracy ................................................................................................................ 66 Datalink Torque Calculations ............................................................................................................................................ 66 Integrated Centinel (CORS).............................................................................................................................................. 66 Starter Lockout ............................................................................................................................................................... 66 Fan Control ..................................................................................................................................................................... 66 Anti-Theft ....................................................................................................................................................................... 66 Cab Switchable Governor ................................................................................................................................................. 66 Driver Reward ................................................................................................................................................................. 67 FSSC: Cylinder Cut-Out................................................................................................................................................... 67 Powertrain Protection ...................................................................................................................................................... 68 Smart Road Speed Governor ............................................................................................................................................ 68 J1939 Devices / Eaton Autoshift ....................................................................................................................................... 68 Highway Cruise Strategy Data Collection........................................................................................................................... 68 Duty Cycle Logging of Route ............................................................................................................................................ 69

CM870 ENGINEERING STATES..........................................................................................................70 CM870 FAULT CODE LIST ..................................................................................................................84 CM870 CONTROL SYSTEM DIAGRAMS..............................................................................................90 CUSTOMER / DRIVER SURVEY ........................................................................................................105 NOTES .............................................................................................................................................113

Cummins Engine Co., Inc. Confidential

Created by Brian J. Ouellette

Page 6

CM870 COMMON APPROACH TO CONTROL SYSTEM DIAGNOSTICS DATALOGGING USING AVAILABLE ENGINEERING TOOLS (CALTERM and NGET) EXTERNAL/MONITOR DATA LOGGING External (MONITOR) Data Logger Helpful Hints: When to use:

For data acquisition that does not require high speed collection Collection of Duty Cycle or Vehicle Mission data Macro-view of events or problems Normal event datalogging while monitoring Calterm or NGET monitor screen For capturing Fault Codes as well as data

Length of datalog: File size:

Datalog length from 0.1 to 3600 seconds 20 minute datalog of 16 parameters approximately 760 kbytes

Advantages of Monitor Data Logger:

Monitor data while logging Time based datalogs beyond a few minutes Able to collect data during extended trips Does not require an unsecured ECM Ability to datalog fault codes

Disadvantages of Monitor Data Logger:

Limited to 16 parameters in Calterm Cannot capture high speed events (requires IDL) Time based data collection only

INSTRUCTION FOR USING THE EXTERNAL (MONITOR) DATA LOGGER CALTERM INSTRUCTIONS: 1.

Set-up Monitor Screen with parameters to data log. Use CM870 Common Approach to Diagnostics to determine which parameters to datalog.

2.

In the Monitor Screen, hit the ALT-L keys to bring up the Monitor Log Menu.

3.

Select MANUAL LOG by moving down to MANUAL LOG and hitting the Enter key. A Check mark should be next to MANUAL LOG. 4.

Select the INTERVAL TIME by moving down to INTERVAL TIME and hitting Enter.

5.

For INTERVAL TIME, enter the time in which data will be collected, anywhere from 0.1 seconds to 3600 seconds.

6.

DESTINATION should read DISK. If not, select DESTINATION and press the Enter key. Select DISK and press the Enter key.

7.

Enter the LOG FILE NAME. Select LOG FILE NAME and press the Enter key. Manually type in the name of the datalog file you wish to save.

8.

Datalog files are saved to the location shown in the UTILITY-EDIT CONFIGURATION screen next to DATA PATH. The default location is the Calterm root directory.

9.

You may select to Overwrite the datalog file with a new file if OVERWRITE LOG FILE is Yes. It is suggested to keep OVERWRITE LOG FILE be set to No. This requires the user to enter a new datalog file name [7.] ever time Monitor Data Logger is invoked.

10.

Select whether to log Fault Codes. Select LOG FAULTS and press the Enter key. Select ALL faults logged, ACTIVE faults logged, or NONE and press the Enter key.

11.

Choose Exit to Start the Monitor Data Logger.

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To STOP Monitor Data Logger, press the ALT-L keys.

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To PLOT the data logged within Calterm, press the ALT-L keys to enter the Monitor Log Screen. Select PLOT and press the Enter key. Choose the file you wish to plot and press the Enter key.

Cummins Engine Co., Inc. Confidential

Created by Brian J. Ouellette

Page 7

CM870 COMMON APPROACH TO CONTROL SYSTEM DIAGNOSTICS INTERNAL DATA LOGGING Internal Data Logger Helpful Hints: When to use IDL:

For high speed data acquisition or short duration events Cranking, stumble, hiccups, idle or PTO quality, transient events Snap throttle, quick accel, When you need a microscope to view the problem (not a macro-view) When you aren't sure when the event will occur (center buffer) When you have individual events which allow time to extract the data from ECM

Length of IDL log:

Data buffer fills at rate which is function of number of parameters and rate at which data is collected, and also whether the parameter is a byte or a word (2-bytes)

CM570: CM870:

APPROXIMATE TIME TO FILL BUFFER 2 parameters at 20 msec = 84 secs of data 2 parameters at 20 msec = 178 secs of data

7 parameters at 20 msec = 24 secs of data 16 parameters at 20 msec = 30 secs of data

Advantages of IDL :

Not limited to block transfer capability (sets of 3) SPEED !!! 20 msec (CM570/CM870) capability.

Center buffer or fill buffer or stop buffer modes.

Calterm is user-friendly, doesn't require knowledge of Calterm scalars.

Monitor Parameters listed in TROUBLESHOOTING AND DIAGNOSTICS PARAMETER GUIDE section of CM870 Common Approach To Diagnostics is equally applicable to IDL as for Calterm external (Monitor) logs.

Can monitor activities on Monitor screen and activate IDL when necessary Can use both Monitor datalogger and IDL simultaneously. You must stop Monitor logger before extracting data from IDL.

Disadvantages of IDL:

Requires unsecured module: security risks are increased Manual processing time is increased for the engineer to extract each set of data Requires renaming the file if multiple logs are required Larger buffer (CM870) is slower to extract data (approx. 1 minute) Very small buffer size limit the practical length of data logs Sometimes can lock up during process, may require reboot of Calterm/PC Less user-friendly in setup mode than for Calterm monitor

Cummins Engine Co., Inc. Confidential

Created by Brian J. Ouellette

Page 8

CM870 COMMON APPROACH TO CONTROL SYSTEM DIAGNOSTICS ECM BUFFER SIZE Buffer size:

The internal datalogger buffer is a zone of ECM memory for specific diagnostic needs. The buffer size is different size for each product:

CM570: 16 k bytes CM870: 32 k bytes Note: ECM must be unsecured and running from RAM prior to moving to IDL mode For further help: Calterm 7.63 User Manual offers 4 pages of helpful instructions on setting up and using IDL The CT manual is online on the Calterm web page at http://etools.ctg.cummins.com/products/calterm/ Hints:

Right/Left arrow to adjust logging interval (.020, .040, .060,.080,.100,.120, etc. msec) Foreground mode = time based Interrupt mode = every cam EPS event Alt-F8 to toggle between monitor mode and IDL screen F6 or F5 or F4 (fill, center, stop buffer) command is available in monitor screen F2 (+ M) moves parameters from Calterm monitor screen to IDL screen Stop Broadcast - after key-on (after each key-on) may yield faster extraction

CALTERM HELPFUL HINTS Use ALT-F1 to bring up an interface screen to enter desired parameters. F1 still functions in this screen to search for parameter names. Use ALT-C to copy a parameter name or use ALT-P to past a variable name to a field region. When done with entering parameter names, hit ENTER to return to the monitor screen. The current screen will be updated with the new parameter list generated.

IDL parameter names can be imported into the IDL set-up screen. Save text file with parameter names to files XXXXXXXX.IDL. Use up to 16 parameter names. This is useful when running several tests and importing different parameters to datalog.

One may take a datalog from the monitor screen and take an IDL log simultaneously. To do this, set-up the IDL screen first and place in RUN DATALOGGER Mode. ESC to the monitor screen and set-up the monitor screen. Start the monitor datalogger. When an event occurs to collect IDL data, use F4, F5, or F6 to start the IDL. Once the IDL is complete, stop the monitor datalogger then upload the IDL data from the buffer in the IDL screen.

Cummins Engine Co., Inc. Confidential

Created by Brian J. Ouellette

Page 9

CM870 COMMON APPROACH TO CONTROL SYSTEM DIAGNOSTICS TROUBLESHOOTING AND DIAGNOSTICS PARAMETER GUIDE THE FOLLOWING INDEX IDENTIFIES AVAILABLE CONTROL SYSTEM PARAMETERS Engine Platforms: ENFORCER 02 / ISM 02 ECM: PV CM870 Application Software:

Phase 5.4

2002 CM870 Controls System 1.

Mission Data Critical Parameters List

Standard Performance Duty Cycle List Engine Performance Parameter List Air Handling Combustion Controls Parameter List

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A/D Sensors: Ambient Air Pressure / Compressor Inlet Pressure Compressor Inlet Temperature / Ambient Air Temp.

Exhaust Pressure Sensor EGR Orifice Temperature (EGR Return Temp.)

EGR Valve Position Sensor EGR Delta Pressure Sensor Charge Pressure Sensor / Boost Pressure Charge Temperature Sensor / IMT Turbocharger VG Actuator Turbocharger Speed Processing Coolant Temperature Sensor Coolant Level Sensor Oil Temperature Sensor Oil Pressure Sensor Fuel Rail Pressure Sensor Fuel Temperature Sensor EPS (Engine Position / Engine Speed) Sensors

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Virtual Sensors: EGR Fraction Estimation Charge Flow Estimation Exhaust Temperature Estimation Exhaust Pressure Estimation Compressor Outlet Temperature Estimation Compressor Inlet Density Estimation Delta Pressure Estimation EGR Delta Pressure Autozero Ambient Parameters Estimation Saturation Temperature Estimation IMT Prediction / IMT Lead-Lag Compensation EGR Return Temperature Lead-Lag Compensation Charge Temperature Estimation Charge Pressure Estimation Turbo Speed Estimation

Cummins Engine Co., Inc. Confidential

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Emission Features: Torque Manager (TQM) Torque Parameter Determination (TQP) Net Engine Torque Estimation Pumping Torque Estimation Combustion Manager (CBM) Combustion Parameter Determination (CBP) Residual Mass Estimator In-Cylinder Oxygen Estimator Air / Fuel and Charge / Fuel Calculations OFC Fuel Limit Estimator Texhaust Fuel Limit Estimator Net Engine Torque Estimator

40.

Combustion Reference (CBR) Combustion Fuel Reference with Transient Correction Chi Reference Determination Combustion Reference Baseline EGR Fraction Reference with Transient Correction Mass Charge Flow (MCF) Reference SOI Reference with Transient Correction Charge Temperature Reference Chi4 Combustion Reference Chi Max Fuel Limit

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Compensate For Off Nominal Combustion Conditions (CBO) Combustion Limit Management (CBL) Charge Manager (CHM) Charge Parameter Determination (CHP) Charge Limit Management (CHL) Determine Charge System Errors (CSE)

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Emission Features: Emissions Manager (EMM) Emission Reference (EMR) Compensate for Off-Nominal Emissions (EMO) Emission Controls AECDs: Condensation Protection AECD Air Handling System Protection AECD Extreme Ambient Overheat AECD White Smoke / Misfire AECD Extended Idle / PTO AECD General Engine Protection AECD Engine Starting / Warm-up AECD Charge System Engine Protection EGR System Monitor

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EGR Valve Position Command EGR Valve Position Autozero VG Turbocharger Duty Cycle VG Air Shutoff Valve Controls

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Performance Diagnostics: Charge Flow Derate [Charge Limit Manager (CHL)] Oxygen / Fuel Control (OFC) Fuel Limit Exhaust Temperature (Texh) Fuel Limit Chi Determination Altitude Performance EGR On Conditions EGR Off Conditions EGR Valve Controller VGT Pneumatic Controller EGR Motor Diagnostics EGR Delta P Sensor Diagnostics EGR Delta P In-Range Rationality Diagnostics

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EGR Cooler Fouling Diagnostics

EGR Delta P Keyon Pressure Check

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Torque Manager Derates

Created by Brian J. Ouellette

Page 10

CM870 COMMON APPROACH TO CONTROL SYSTEM DIAGNOSTICS TROUBLESHOOTING AND DIAGNOSTICS PARAMETER GUIDE THE FOLLOWING INDEX IDENTIFIES AVAILABLE CONTROL SYSTEM PARAMETERS Engine Platforms: ENFORCER 02 / ISM 02 ECM: PV CM870 Application Software:

Phase 5.4

2002 CM870 Controls System 75.

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Performance Diagnostics: ETIF Performance Evaluation: EGR Valve and VGT Performance Engine Brake Performance Clutch Engagement Performance Engine Lug-Up / Lug-Down Torque Response Coupled-Controller Performance During Gear Shifts Coolant and IMT Advance Controls PTO Response Snap Throttle Response (HSG/LSG Stationary) Engine Start-up Low Idle Stability, Stationary PTO Pump-Off Throttle Characterization Snap Throttle Response (HSG Bobtail) Throttle Control / Stability, Bobtail Idle In Gear, Bobtail Gear Ratio Validation Cruise Control Base Functionality Road Speed Governor Base Functionality Cruise Control with Autoresume Cruise Control with Engine Braking Cruise Control Overshoot Road Speed Governor Overshoot Reverse ESP / Take-Off ESP High Idle Stability, Loaded Trailer Throttle Control / Stability, Loaded Trailer Idle In Gear, Loaded Trailer Sensor Characterization Surge Characterization Air Handling Controller Induced Surge Quasi-Steady State Compressor Surge Transient Compressor Surge Engine Surge

104.

105.

OFC and Texh Fuel Limits Dyno Performance Monitor

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106.

107.

108.

109.

110.

111.

112.

113.

114.

115.

116.

117.

118.

119.

120.

121.

122.

123.

124.

125.

126.

127.

128.

129.

130.

131.

132.

133.

134.

135.

Application Features: NDOT Governor All Speed Governor (ASG) High Idle Governor (HSG) Low Idle Governor (LSG) Throttle Governor (Min/Max) Power Take-Off Governor (PTO) Road Speed Governor (RSG) Cruise Control Governor (CC) SOI Timing Control SOI Timing Control – SOI Advance Engine Start-up / Cranking Engine Brake Manager Engine Fan Control Alpha Determination Noise Control – Speed Derates Smart Torque (ST Ratings) Load Based Speed Control (LBSC) Shift Manager (SM) Machine Mass Estimator (MME)

CORS Automated Transmissions Powertrain Controls Powertrain Protection Limp Home Mode Out Of Gear Protection Gear Down Protection Starter Lockout Remote Throttle Control Remote PTO Control Idle Shutdown Turboconveyor Ether Start Injection

136.

137.

138.

139.

Engineering Features: User Overrides Torque To Fuel Conversion Keyon Pressure Check Diagnostics General Engine Protection (EPF)

140.

In-Range Diagnostics

141.

EGR Delta P In-Range Rationality Diagnostics ECM Parameters

142.

143.

144.

145.

146.

147.

148.

149.

150.

151.

152.

153.

154.

155.

HPI-TP Fuel System: Fuel Systems Interface (FSI) Engine Speed Processing (EPS) Fuel Pressure Compensation (PCC) Fuel Temperature Compensation (TCC) Boost Pressure Compensation (BPC) Solid Fuel Height Determination (SFH) Estimated Valve Delay (EVD) Flow-To-Time Conversion (FTT) Cylinder Cut-Out Diagnostics (CTS) Cylinder Balancing Diagnostics (CBD) Fuel Pressure Diagnostics (FPD) Fuel Shut Off (FSO) Controls Fuel System Fault Derate Handler (FDH) CBD / UFD Based Unintended Fueling Diag. (CUFD)

Compressor Outlet Temperature Coolant Level Coolant Temperature Coolant Temp2 EGR Orifice Return Temperature EGR Orifice Return Temp2 Exhaust Temperature Intake Manifold Temperature Oil Pressure Oil Temperature Charge Pressure IR Diagnostics Turbo Speed IR Diagnostics

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CM870 COMMON APPROACH TO CONTROL SYSTEM DIAGNOSTICS TROUBLESHOOTING AND DIAGNOSTICS PARAMETER GUIDE THE FOLLOWING INDEX IDENTIFIES AVAILABLE CONTROL SYSTEM PARAMETERS Engine Platforms: ENFORCER 02 / ISM 02 ECM: PV CM870 Application Software:

Phase 5.4

2002 CM870 Controls System Legacy Information: 156.

157.

158.

159.

160.

161.

162.

163.

164.

165.

166.

167.

168.

169.

Hard Starting / Startup and Overshoot Cold Starting Clutch Engagement / Idle Overshoot Throttle Control – Min/Max (Auto) Governor Throttle Control – All Speed (VS) Governor Cruise Control / Road Speed / Geardown Gov. Cruise Control with Engine Brakes Cruise Control with Autoresume Engine Braking Low Power – Road Speed Governor Low Power – Geardown Protection Low Power – Boost Response Test Throttle Characterization / Idle Validation Switches Low Idle Stability / Rough Idle

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170.

171.

172.

173.

174.

175.

176.

177.

178.

179.

180.

181.

182.

183.

PTO Response / Stability No Load Friction / Light Load Throttle Turbo Surge Performance (Hill Climbing) VSS Anti-Tampering Acceleration Noise Control Cold Temp Stumble / IMT SOI Advance (White Smoke) Road Speed Governor / Cruise Control Dropout High Speed Governor Stability Stumble During Rapid Accel (OFC Limitation) Ambient Air Pressure Sensor – Poor Engine Performance Stationary Engine Brake Delay Test Fan Logic Activation ECM Trip Info / Fuel Economy Activation

184.

185.

186.

187.

188.

189.

190.

191.

192.

193.

194.

195.

196.

Datalink Torque Calculation Integrated Centinel (CORS) Starter Lockout Fan Control Anti-Theft Cab Switchable Governor Driver Reward FSSC: Cylinder Cut-Out Powertrain Protection Smart Road Speed Governor J1939 Devices / Eaton Autoshift Highway Cruise Strategy Data Collection Duty Cycle Logging Of Route

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Page 12

CM870 COMMON APPROACH TO CONTROL SYSTEM DIAGNOSTICS 2002 CM870 CONTROL SYSTEM Critical Parameters List: 1. Mission Data Critical Parameters List Standard Performance Duty Cycle List: Filtered_Engine_Speed Total_Fueling Fueling_Control_State_Value Road_Speed Alpha CBR_Chi_Value Exhaust_Press Charge_Press

RPM MG/STROKE --MPH ----IN_HG IN_HG

Compressor_Inlet_Tmptr EGR_Position VGT_Duty_Cycle Filtered_Turbo_Speed EGR_Fraction CHL_EGR_Frac_Cmd Charge_Flow CHL_MCF_Cmd

DEG_F %open %DutyCycle KRPM ----LB/MIN LB/MIN

Commanded_Throttle TQM_Final_Torque_Cmd Exhaust_Tmptr EGR_Orifice_Tmptr Charge_Tmptr Ambient_Air_Press Ambient_Air_Tmptr Fuel_Rail_Press Fuel_Tmptr Oil_Tmptr Oil_Press

%THROTTLE FT*LB DEG_F DEG_F DEG_F IN_HG DEG_F PSI DEG_F DEG_F PSI (gauge)

Final_Timing_State Final_Timing Compressor_Inlet_Press Compressor_Inlet_Density Altitude EGR_Valve_Delta_Press EGR_Orifice_Delta_Press Compressor_Outlet_Tmptr Coolant_Tmptr EMM_AECD_State EMM_Protection_State

--DEG_BTDC IN_HG LBM/FT3 FT IN_HG IN_HG DEG_F DEG_F -----

Engine Performance Parameter List: Filtered_Engine_Speed Total_Fueling Fueling_Control_State_Value Final_Timing Net_Engine_Torque Net_Machine_Torque No_Load_Torque Ndot_Error

RPM MG/STROKE --CRANK_DEG FT*LB FT*LB FT*LB RPM/SEC

Ndot_Demand Ndot_Actual Ndot_LSG Ndot_HSG Ndot_Four_D Ndot_ASG Ndot_Cruise_Control Ndot_RSG

RPM/SEC RPM/SEC RPM/SEC RPM/SEC RPM/SEC RPM/SEC RPM/SEC RPM/SEC

--%THROTTLE MPH ------%open %DutyCycle

Filtered_Turbo_Speed Coolant_Tmptr Charge_Tmptr Charge_Press Ambient_Air_Tmptr Ambient_Air_Press Compressor_Inlet_Tmptr Compressor_Inlet_Density

KRPM DEG_F DEG_F IN_HG DEG_F IN_HG DEG_F LBM/FT3

RPM MG/STROKE --FT*LB FT*LB ----KRPM IN_HG

CHL_EGR_Frac_Cmd EGR_Fraction EAC_EGR_Valve_Cmd EGR_Position CHS_MCF_Cmd CHL_MCF_Cmd Charge_Flow TGC_VT_Cmd VGT_Duty_Cycle

----% %open LB/MIN LB/MIN LB/MIN % %DutyCycle

IN_HG IN_HG DEG_F DEG_F DEG_F LBM/FT3 DEG_F --FT

CSE_Xform_Error_1 CSE_Xform_Error_2 CSE_Xform_Angle EGR_Delta_Press Charge_Tmptr CBR_EGR_Frac_Ref CBR_MCF_Ref EMM_AECD_State EMM_Protection_State

----DEG IN_HG DEG_F --LB/MIN -----

Final_Timing_State Commanded_Throttle Road_Speed Filtered_Gear_Ratio Alpha CBR_Chi_Value EGR_Position VGT_Duty_Cycle Air Handling Combustion Controls Parameter List: Filtered_Engine_Speed FSS_Total_Fueling Fueling_Control_State_Value TQM_Final_Torque_Cmd Net_Engine_Torque CBR_Alpha CBR_Chi_Value Filtered_Turbo_Speed EGR_Valve_Delta_Press Charge_Press Exhaust_Press Exhaust_Tmptr EGR_Orifice_Tmptr Compressor_Outlet_Tmptr Compressor_Inlet_Density Compressor_Inlet_Tmptr EGA_Control_State Altitude

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CM870 COMMON APPROACH TO CONTROL SYSTEM DIAGNOSTICS A/D Sensors: 2. Ambient Air Pressure / Compressor Inlet Pressure A/D Processing: Air_Pressure_Sensor Air_Pressure_Sensor_Raw Air_Pressure_Sensor_Global_Default Air_Press_Sensor Air_Press_Status Air_Pressure_Sensor_High_Error Air_Pressure_Sensor_Low_Error

IN_HG CNTS IN_HG IN_HG -------

Input to Control Algorithms: Ambient_Air_Press Ambient_Air_Press_Source Air_Press_State Compressor_Inlet_Press Compressor_Inlet_Press_Source Compressor_Inlet_Pressure_Drop T_AMB_Sensing_Ambient_Pressure

IN_HG --HEX IN_HG --IN_HG ---

3. Compressor Inlet Temperature / Ambient Air Temperature A/D Processing: Compressor_Inlet_Temperature Compressor_Inlet_Temperature_Raw Compressor_Inlet_Temperature_Global_Default Compressor_Inlet_Tmptr_Sensor Compressor_Inlet_Tmptr_Status Compressor_Inlet_Temperature_Low_Error Compressor_Inlet_Temperature_High_Error

DEG_F CNTS DEG_F DEG_F -------

Input to Control Algorithms: Compressor_Inlet_Tmptr Compressor_Inlet_Tmptr_Source Compressor_Inlet_Tmptr_State Ambient_Air_Tmptr Ambient_Air_Tmptr_Source Compressor_Inlet_Tmptr_Rise

DEG_F --HEX DEG_F --DEG_F

Input to Control Algorithms: Exhaust_Press Exhaust_Press_Source Exhaust_Press_State Exhaust_Pressure

IN_HG --HEX IN_HG

4. Exhaust Pressure Sensor A/D Processing: Exhaust_Pressure_Sensor Exhaust_Pressure_Sensor_Raw Exhaust_Pressure_Sensor_Global_Default Exhaust_Press_Sensor Exhaust_Press_Status Exhaust_Pressure_Sensor_High_Error Exhaust_Pressure_Sensor_Low_Error

IN_HG CNTS IN_HG IN_HG -------

5. EGR Orifice Temperature (EGR Return Temperature) A/D Processing: EGR_Orifice_Temperature EGR_Orifice_Temperature_Raw EGR_Orifice_Temperature_Global_Default EGR_Orifice_Tmptr_Sensor EGR_Orifice_Tmptr_Status EGR_Orifice_Temperature_Sensor_High_Error EGR_Orifice_Temperature_Sensor_Low_Error

DEG_F CNTS DEG_F DEG_F -------

Input to Control Algorithms: EGR_Orifice_Temperature EGR_Orifice_Tmptr_Source EGR_Orifice_Tmptr_State EGR_Orifice_Tmptr EGRT Lead Lag Estimation: INM_EGRT_Lead_Term INM_EGRT_After_Lead INM_EGRT_Lead_Time_Constant

DEG_F DEG_F SEC

Output from EGR Position Autozero: EGR_Position EGR_Position_Source EGR_Position_State

%open --HEX

EGR_Valve_Position EGR_Valve_Is_Closed EGR_Valve_Autozero_Error

%open -----

Output from EGR P Autozero: EGR_Delta_Press EGR_Delta_Press_Source EGR_Delta_Press_State

IN_HG --HEX

EGR_Delta_Press_AP EGR_ Delta_Pressure EGR_Delta_P_Autozero_Error

IN_HG IN_HG ---

DEG_F --HEX DEG_F

6. EGR Valve Position Sensor A/D Processing: EGR_Position_Before_Autozero EGR_Position_Before_Autozero_Raw EGR_Position_Before_Autozero_Global_Default EGR_Position_Sensor EGR_Position_Status EGR_Position_Before_Autozero_High_Error EGR_Position_Before_Autozero_Low_Error

%open CNTS %open %open -------

7. EGR Delta Pressure Sensor A/D Processing: EGR_Delta_P_Sensor EGR_Delta_P_Sensor_Raw EGR_Delta_P_Sensor_Global_Default EGR_Delta_Press_Sensor EGR_Delta_Press_Status EGR_Delta_P_Sensor_High_Error EGR_Delta_P_Sensor_Low_Error

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IN_HG CNTS IN_HG IN_HG -------

Created by Brian J. Ouellette

Page 14

CM870 COMMON APPROACH TO CONTROL SYSTEM DIAGNOSTICS 8. Charge Pressure Sensor / Boost Pressure A/D Processing: Boost_Pressure_Absolute Boost_Pressure_Absolute_Raw Boost_Pressure_Absolute_Global_Default Charge_Press_Sensor Charge_Press_Status Boost_Pressure_Absolute_High_Error Boost_Pressure_Absolute_Low_Error

Input to Control Algorithms: Charge_Press Charge_Press_Source Charge_Press_State Boost_Pressure_Absolute Gage Boost Pressure Value: Boost_Pressure Charge_Press_Gauge Charge_Press_Gauge_Source

IN_HG CNTS IN_HG IN_HG -------

IN_HG --HEX IN_HG IN_HG IN_HG ---

9. Charge Temperature Sensor / Intake Manifold Temperature A/D Processing: Intake_Manifold_Temperature_Sensor Intake_Manifold_Temperature_Sensor_Raw Intake_Manifold_Temperature_Sensor_Global_Default Charge_Tmptr_Sensor Charge_Tmptr_Status Intake_Manifold_Temperature_Sensor_High_Error Intake_Manifold_Temperature_Sensor_Low_Error

DEG_F CNTS DEG_F DEG_F -------

Input to Control Algorithms: Charge_Tmptr Charge_Tmptr_Source Charge_Tmptr_State Intake_Manifold_Temperature IMT Lead Lag Estimation: TPE_IMT_Lead_Term TPE_IMT_After_Lead TPE_IMT_Lead_Time_Constant

DEG_F --HEX DEG_F DEG_F DEG_F SEC

10. Turbocharger VG Actuator Input to Control Algorithm: Battery_Voltage Coolant_Tmptr TGC_VT_Cmd

VOLT DEG_F %

Output to Control System: VGT_Duty_Cycle VGT_Dither_Amplitude VGT_Duty_Cycle_Dithered VGT_Battery_Compensated_Duty_Cycle VGT_Cold_Compensated_Duty_Cycle

%DutyCycle %DutyCycle %DutyCycle %DutyCycle %DutyCycle

Turbo_Speed_Low_Error Turbo_Speed_High_Error

-----

Input To Control Algorithms: Filtered_Turbo_Speed Turbo_Speed_Source Turbo_Speed_State VR_Turbo_Speed_Hysteresis Turbo_Speed_In_Range_Error

KRPM --HEX -----

Input to Control Algorithms: Coolant_Tmptr Coolant_Tmptr_Source Coolant_Tmptr_State Coolant_Temperature

DEG_F --HEX DEG_F

11. Turbocharger Speed Processing A/D Processing: Ambient_Air_Press Charge_Press Estimated_Turbo_Speed Raw_Turbo_Speed Turbo_Speed_Period Turbo_Speed_Global_Default Turbo_Speed_Sensor Turbo_Speed_Status

IN_HG IN_HG KRPM HZ SEC KRPM KRPM ---

12. Coolant Temperature Sensor A/D Processing: Coolant_Temperature Coolant_Temperature_Raw Coolant_Temperature_Global_Default Coolant_Tmptr_Sensor Coolant_Tmptr_Status Coolant_Temperature_High_Error Coolant_Temperature_Low_Error

DEG_F CNTS DEG_F DEG_F -------

13. Coolant Level Sensor A/D Processing: Coolant_Level Coolant_Level_Raw Coolant_Level_Global_Default Coolant_Lvl_Sensor Coolant_Lvl_Status

VOLT CNTS VOLT VOLT ---

Determining Coolant Level: Coolant_Tmptr CLS_Coolant_Level_State CLS_Low_Coolant_Error

Input to Control Algorithms: Coolant_Lvl Coolant_Lvl_Source Coolant_Lvl_State Coolant_Level Coolant_Level_High_Error Coolant_Level_Low_Error

VOLT --HEX VOLT -----

DEG_F -----

CLS_Safe_Threshold CLS_Coolant_Level_Reading T_CLS_Algorithm_Enable

----HEX

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CM870 COMMON APPROACH TO CONTROL SYSTEM DIAGNOSTICS 14. Oil Temperature Sensor A/D Processing: Oil_Temperature Oil_Temperature_Raw Oil_Temperature_Global_Default Oil_Tmptr_Sensor Oil_Tmptr_Status Oil_Temperature_High_Error Oil_Temperature_Low_Error

DEG_F CNTS DEG_F DEG_F -------

Input to Control Algorithms: Oil_Tmptr Oil_Tmptr_Source Oil_Tmptr_State Oil_Temperature

DEG_F --HEX DEG_F

Input to Control Algorithms: Oil_Press Oil_Press_Source Oil_Press_State Oil_Pressure

PSI --HEX PSI

Absolute Oil Pressure Value: Oil_Press_Absolute

PSI_A

Input to Control Algorithms: Fuel_Rail_Pressure Fuel_Rail_Press Fuel_Rail_Press_Source

PSI PSI ---

FSSC Parameters: FSI_lp_Gallery_v

MBAR

Input to Control Algorithms: Fuel_Temperature Fuel_Tmptr Fuel_Tmptr_Source

DEG_F DEG_F ---

FSSC Parameters: FSI_t_fuel_v

DEG_C

15. Oil Pressure Sensor A/D Processing: Oil_Pressure_Absolute Oil_Pressure_Absolute_Raw Oil_Pressure_Absolute_Global_Default Oil_Press_Sensor Oil_Press_Status Oil_Pressure_Absolute_High_Error Oil_Pressure_Absolute_Low_Error

PSI_A CNTS PSI_A PSI_A -------

HPI-TP Fuel Systems A/D Sensors: 16. Fuel Rail Pressure Sensor A/D Processing: Fuel_Rail_Pressure Fuel_Rail_Pressure_Raw Fuel_Rail_Pressure_Global_Default Fuel_Rail_Press_Sensor Fuel_Rail_Press_Status Fuel_Rail_Pressure_High_Error Fuel_Rail_Pressure_Low_Error

PSI CNTS PSI PSI -------

17. Fuel Temperature Sensor A/D Processing: Fuel_Temperature Fuel_Temperature_Raw Fuel_Temperature_Global_Default Fuel_Tmptr_Sensor Fuel_Tmptr_Status Fuel_Temperature_High_Error Fuel_Temperature_Low_Error

DEG_F CNTS DEG_F DEG_F -------

18. EPS (Engine Position / Engine Speed) Sensors EPS Main Sensor (Crank): EPS_Main_RPM EPS_Main_Sync_State EPS_Main_Intermittent_Sync_State EPS_Main_Interrupt_Number EPS_Main_Period EPS_Main_Pulse_Type

RPM -----------

EPS Backup Sensor (Cam): EPS_Backup_RPM EPS_Backup_Sync_State EPS_Backup_Intermittent_Sync_State EPS_Backup_Interrupt_Number EPS_Backup_Period EPS_Backup_Pulse_Type

RPM -----------

EPS_Engine_Speed EPS_Cam_Cycle_State EPS_Error_Status

RPM --HEX

EPS_Backup_Phase EPS_Cam_Half_Cycle EPS_Crank_Tooth_At_Cam_Pulse

CRANK_DEG --CNTS

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CM870 COMMON APPROACH TO CONTROL SYSTEM DIAGNOSTICS Virtual Sensors: 19. EGR Fraction Estimation Filtered_Engine_Speed Net_Engine_Torque EGR Fraction Estimate: CHP_Volumetric_Efficiency CBP_O2_Frac_Residual_Bef_Delay CHP_O2_Flow_Delay CHP_EGR_Flow_Delay CHP_EGR_Flow_Before_Delay Downstream EGR Flow Model: EGR_Orifice_Delta_Press Charge_Press EGR_Orifice_Tmptr CHP_Downstream_Pratio CHP_Sqrt_Torifice_R CHP_Downstream_Corrected_Flow CHP_Downstream_EGR_Flow

RPM FT*LB

Total_Fueling Fueling_Control_State

MG/STROKE ---

----SEC SEC LB/MIN

CHP_O2_Frac_EGR EGR_Flow EGR_Flow_Source Charge_Flow EGR_Fraction

--LB/MIN --LB/MIN ---

IN_HG IN_HG DEG_F --DEG_R LB/MIN LB/MIN

EGR_Position EGR_Valve_Is_Closed C_CHP_Venturi_Vrt_Sensor_Active EGR_Position_Source EGR_Orifice_Delta_Press_Source Charge_Press_Source EGR_Tmptr_Source

%open -------------

RPM FT*LB

Total_Fueling Fueling_Control_State

MG/STROKE ---

DEG_F DEG_R --LB/MIN

Charge_Press_Source Charge_Tmptr_Source Exhaust_Press_Source Charge_Flow_Source

---------

-------

Exhaust_Press Charge_Press CHP_Pratio

IN_HG IN_HG ---

--IN_HG

CHP_Intake_Manifold_Tmptr_R C_CHP_Engine_Displacement

DEG_R IN3

RPM FT*LB

Total_Fueling Fueling_Control_State

MG/STROKE ---

CRANK_DEG IN_HG

Filtered_Engine_Speed CBP_Charge_Fuel_Ratio TPE_Energy_Fraction

RPM -----

--DEG_F DEG_F DEG_F

Exhaust_Tmptr_Source Charge_Flow_Source Charge_Tmptr_Source Charge_Press_Source

---------

20. Charge Flow Estimation Filtered_Engine_Speed Net_Engine_Torque Charge Flow Estimate: Charge_Tmptr CHP_Intake_Manifold_Tmptr_R CHP_Volumetric_Efficiency Charge_Flow Volumetric Efficiency: CHP_Veff_Mach CHP_Veff_Sqrt CHP_Flow_Area_Constant Speed Density Equation: CHP_Volumetric_Efficiency Charge_Press

21. Exhaust Temperature Estimation Filtered_Engine_Speed Net_Engine_Torque Exhaust Temperature OPUS-Fit: FSS_SOI Charge_Press

Exhaust Temperature Estimate: TPE_Invalid_Model TPE_Delta_Exhaust_Tmptr Exhaust_Tmptr Exhaust_Metal_Tmptr

22. Exhaust Pressure Estimation Filtered_Engine_Speed Net_Engine_Torque Fueling_Control_State Exhaust Pressure Back-up Estimate: Filtered_Engine_Speed TGC_VT_Cmd

RPM FT*LB ---

Exhaust_Press Exhaust_Press_Source T_TPE_Exhaust_Press_Est_Enable

IN_HG -----

RPM %

EMP Estimate Source: EGR_Position_Source Charge_Press_Source

EGR_Position Charge_Press Exhaust_Press_Est

%open IN_HG IN_HG

-----

Exhaust_Press_Estat

---

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Page 17

CM870 COMMON APPROACH TO CONTROL SYSTEM DIAGNOSTICS 23. Compressor Outlet Temperature Estimation Filtered_Engine_Speed Net_Engine_Torque COT Estimate: Compressor_Inlet_Press Compressor_Inlet_Tmptr Fresh_Air_Flow Filtered_Turbo_Speed

RPM FT*LB IN_HG DEG_F LB/MIN KRPM

COT Estimate Source: Compressor_Inlet_Press_Source Compressor_Inlet_Tmptr_Source Fresh_Air_Flow_Source

TPE_Corrected_Air_Flow TPE_CIT_Sqrt TPE_Corrected_Turbo_Speed TPE_COT_To_Inlet_Tmptr_Ratio Compressor_Outlet_Tmptr

KG*SQRT_K/S/Mpa SQRT(DEG_K) REV/SEC/SQRT(K) --DEG_F

-------

Turbo_Speed_Source TPE_COT_Est_Enable Compressor_Outlet_Tmptr_Source

-------

24. Compressor Inlet Density Estimation Filtered_Engine_Speed Net_Engine_Torque Compressor Inlet Density Estimate: Compressor_Inlet_Press

RPM FT*LB IN_HG

Compressor Inlet Density Source: Compressor_Inlet_Press_Source Compressor_Inlet_Tmptr_Source Compressor_Inlet_Density_Source

Compressor_Inlet_Tmptr Compressor_Inlet_Density

DEG_F LBM/FT3

-------

Altitude CBR_Chi_Value

FT ---

IN_HG IN_HG IN_HG

EGR_Valve_Delta_Press Engine_Delta_Press EGR_Orifice_Delta_Press

IN_HG IN_HG IN_HG

---------

EGR_Valve_Delta_Press_Source Engine_Delta_Press_Source EGR_Orifice_Delta_Press_Source

-------

IN_HG ---

EGR_Delta_P_Autozero_Enable EGR_Delta_P_AZ_Bypass EGR_Delta_P_AZ_Precondition

-------

------RPM ---

Coolant_Tmptr Charge_Tmptr Charge_Tmptr_Source EGR_Valve_Is_Closed Filtered_Turbo_Speed

DEG_F DEG_F ----KRPM

%open SEC SEC -----

T_EGR_Delta_P_Autozero_Offset EGR_Delta_Press_AP EGR_Delta_Press EGR_Delta_Press_State EGR_Delta_Press_Source

IN_HG IN_HG IN_HG -----

25. Delta Pressure Estimation Filtered_Engine_Speed Net_Engine_Torque EGR Delta Pressures Estimate: Charge_Press Exhaust_Press EGR_Delta_Press EGR Delta Pressures Estimate Source: C_CHP_Downstream_Delta_P_Active Charge_Press_Source Exhaust_Press_Source EGR_Delta_Press_Source

RPM FT*LB

26. EGR Delta Pressure Autozero EGR_Delta_Press_Sensor EGR_Delta_Press_Status

EGR Delta P Autozero Enabler: Coolant_Tmptr_Source EGR_Delta_Press_Status EGR_Position_Source Filtered_Engine_Speed Keyswitch EGR Delta P Autozero Logic: C_EGR_Delta_P_AZ_Tolerance C_EGR_Delta_P_AZ_Enable_Time C_EGR_Delta_P_AZ_Fault_Time EGR_Delta_P_Autozero_Error EGR_Delta_P_Autozero_Complete

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Page 18

CM870 COMMON APPROACH TO CONTROL SYSTEM DIAGNOSTICS 27. Ambient Parameters Estimation Filtered_Engine_Speed Net_Engine_Torque Ambient Temperature Estimate: Vehicle_Speed Fresh_Air_Flow Compressor_Inlet_Tmptr_Rise Compressor_Inlet_Tmptr Altitude Estimate: Ambient_Air_Press Altitude Compressor Inlet Pressure Estimate: Air_Press Fresh_Air_Flow Compressor_Inlet_Pressure_Drop T_AMB_Sensing_Ambient_Pressure Ambient_Air_Press Humidity Estimate (engineering use only): Filtered_Engine_Speed CBR_Fuel_Ref

RPM FT*LB MPH LB/MIN DEG_F DEG_F

Ambient_Air_Tmptr Fresh_Air_Flow_Source Compressor_Inlet_Tmptr_Source Ambient_Air_Tmptr_Source

DEG_F -------

IN_HG FT

Ambient_Air_Press_Source Altitude_Source

-----

IN_HG LB/MIN IN_HG --IN_HG

Compressor_Inlet_Press Fresh_Air_Flow_Source Air_Press_Source Ambient_Air_Press_Source Compressor_Inlet_Press_Source

IN_HG ---------

RPM MG/STROKE

Ambient_Relative_Humidity

---

TPE_Inlet_H2O_Mole_Fraction Charge_Saturation_Tmptr Charge_H2O_PP Exhaust_Saturation_Tmptr Exhaust_H2O_PP Charge_Press_Source Ambient_Air_Press_Source Ambient_Air_Tmptr_Source Charge_Saturation_Tmptr_Source Exhaust_Saturation_Tmptr_Source

--DEG_F IN_HG DEG_F IN_HG -----------

DEG_F -----

Coolant_Tmptr Exhaust_Tmptr Charge_Tmptr CHP_Predicted_IMT

DEG_F DEG_F DEG_F DEG_F

LB/MIN DEG_F --SEC DEG_F

TPE_IMT_After_Lead Charge_Tmptr_State Charge_Tmptr_Est Charge_Tmptr_EStat Charge_Tmptr Charge_Tmptr_Source

DEG_F --DEG_F --DEG_F ---

INM_EGRT_Lead_Term INM_EGRT_After_Lead EGR_Orifice_Tmptr_State EGR_Orifice_Tmptr EGR_Orifice_Tmptr_Source

DEG_F DEG_F --DEG_F ---

28. Saturation Temperature Estimation Filtered_Engine_Speed Net_Engine_Torque Saturation Temperatures Estimate: Charge_Press EGR_Fraction CBR_Base_Chi_EGR_Frac_Cmd CBP_Phi Ambient_Air_Press Ambient_Air_Tmptr Ambient_Relative_Humidity TPE_Saturation_Vapor_Press TPE_Vapor_Partial_Press TPE_Charge_H2O_Mole_Fraction TPE_Exhaust_H2O_Mole_Fraction

RPM FT*LB IN_HG ------IN_HG DEG_F --IN_HG IN_HG -----

29. IMT Prediction / IMT Lead-Lag Compensation Filtered_Engine_Speed Net_Engine_Torque IMT Prediction with EGR Flow: Ambient_Air_Tmptr CBR_Base_Chi_EGR_Frac_Cmd EGR_Valve_Is_Closed

IMT Lead-Lag Compensation: Charge_Flow Charge_Tmptr_Sensor Charge_Tmptr_Status TPE_IMT_Lead_Time_Constant TPE_IMT_Lead_Term

RPM FT*LB

30. EGR Return Temperature Lead-Lag Compensation Filtered_Engine_Speed Net_Engine_Torque EGRT Lead-Lag Compensation: EGR_Orifice_Tmptr_Sensor EGR_Orifice_Tmptr_Status EGR_Flow INM_EGRT_Lead_Time_Constant

Cummins Engine Co., Inc. Confidential

RPM FT*LB DEG_F --LB/MIN SEC

Created by Brian J. Ouellette

Page 19

CM870 COMMON APPROACH TO CONTROL SYSTEM DIAGNOSTICS 31. Charge Temperature Estimation Compressor_Inlet_Tmptr Compressor_Inlet_Tmptr_Source CBR_Chi_Value CBR_Chi_Desired CBR_Chi_Source

DEG_F ---------

CBR_Alpha TPE_CIT_Ref CBR_Charge_Tmptr_Ref Charge_Tmptr_Est Charge_Tmptr_EStat

--DEG_F DEG_F DEG_F ---

Charge Pressure Estimate Logic: Filtered_Engine_Speed Compressor_Inlet_Press TPE_Pressure_Ratio_Scale

RPM IN_HG ---

Charge Pressure Estimate Status: Turbo_Speed_Source Filtered_Turbo_Speed Compressor_Inlet_Tmptr_Source Charge_Tmptr_Source Air_Press_Source

TPE_Corrected_Turbo_Speed Charge_Press_Est_Offset Charge_Press_Tolerance Charge_Press_Est

REV/SEC/Sqrt(K) IN_HG IN_HG IN_HG

--KRPM -------

EGR_Position_Source EGR_Delta_Press_Source Exhaust_Press_Source EGR_Orifice_Tmptr_Source C_CHP_Downstream_Delta_P_Active Charge_Press_Estat

-------------

32. Charge Pressure Estimation

33. Turbo Speed Estimation Turbo Speed Estimate Logic: Filtered_Engine_Speed Charge_Press Compressor_Inlet_Press TPE_Corrected_Turbo_Speed_Est

RPM IN_HG IN_HG REV/SEC/Sqrt(K)

Turbo Speed Estimate Status: Charge_Press_Source Compressor_Inlet_Press_Source Net_Engine_Torque

TPE_Turbo_Speed_Scale TPE_CIT_Sqrt Turbo_Speed_Est_Offset Turbo_Speed_Tolerance Turbo_Speed_Est

--SQRT(DEG_K) KRPM KRPM KRPM

----FT*LB

Compressor_Inlet_Tmptr_Source Turbo_Speed_EStat Filtered_Turbo_Speed

----KRPM

Cummins Engine Co., Inc. Confidential

Created by Brian J. Ouellette

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CM870 COMMON APPROACH TO CONTROL SYSTEM DIAGNOSTICS Emission Features: 34. Torque Manager (TQM) [TQM] Torque Manager: Filtered_Engine_Speed Ndot_Net_Torque_Cmd Ndot_Net_Torque_Cmd_State Throttle_100_Torque Fan_Torque AC_Torque Altitude_Derate_Torque Out_Of_Gear_Torque PTO_Derate_Torque PTP_Torque_Output WP_Startup_Torque_Limit

RPM FT*LB --FT*LB FT*LB FT*LB FT*LB FT*LB FT*LB FT*LB FT*LB

[TQM] Max Machine Torque: Filtered_Engine_Speed Ndot_Net_Torque_Cmd Ndot_Net_Torque_Cmd_State Throttle_100_Torque Out_Of_Gear_Torque PTO_Derate_Torque PTP_Torque_Output

RPM FT*LB --FT*LB FT*LB FT*LB FT*LB

[TQM] Machine Torque Limiting: Filtered_Engine_Speed Ndot_Net_Torque_Cmd Ndot_Net_Torque_Cmd_State MS_Control_Flag MS_Override_Enable MS_Final_Override_Torque Torque_Derate_Override_Enable

Engine_Protection_Derate_Torque TQM_Final_Torque_Cmd TQM_Net_Engine_Torque_State TQM_Net_Machine_Torque_Cmd TQM_Net_Machine_Torque_State

FT*LB FT*LB --FT*LB ---

TQM_Engine_Torque_Limit TQM_Engine_Torque_Limit_State TQM_Machine_Torque_Limit TQM_Machine_Torque_Limit_State TQM_Net_Engine_Torque_Rqst

FT*LB --FT*LB --FT*LB

Torque_Derate_Override_Enable C_TQM_No_Derate_Torque

--FT*LB

TQM_Machine_Torque_Limit TQM_Machine_Torque_Limit_State

FT*LB ---

RPM FT*LB ----HEX FT*LB ---

TQM_Machine_Torque_Limit TQM_Machine_Torque_Limit_State

FT*LB ---

TQM_Net_Machine_Torque_Cmd TQM_Net_Machine_Torque_State

FT*LB ---

[TQM] Max Machine Torque: Filtered_Engine_Speed Ndot_Net_Torque_Rqst Ndot_Net_Machine_Torque_State Altitude_Derate_Torque Engine_Protection_Derate_Torque WP_Startup_Torque_Limit

RPM FT*LB --FT*LB FT*LB FT*LB

Torque_Derate_Override_Enable C_TQM_No_Derate_Torque

--FT*LB

TQM_Engine_Torque_Limit TQM_Engine_Torque_Limit_State

FT*LB ---

[TQM] Engine Torque Limiting: Filtered_Engine_Speed Ndot_Net_Torque_Rqst Ndot_Net_Machine_Torque_State TQM_Engine_Torque_Limit TQM_Engine_Torque_Limit_State

RPM FT*LB --FT*LB ---

TQM_Final_Torque_Cmd TQM_Net_Engine_Torque_State

FT*LB ---

Coolant_Torque_Adjustment Friction_Torque Net_Machine_Torque No_Load_Torque Zero_Fuel_Torque

FT*LB FT*LB FT*LB FT*LB FT*LB

35. Torque Parameter Determination (TQP) Filtered_Engine_Speed TQM_Final_Torque_Cmd Total_Fueling AC_Torque Fan_Torque CHP_Pumping_Torque_Adj Net_Engine_Torque Coolant_Tmptr

Cummins Engine Co., Inc. Confidential

RPM FT*LB MG/STROKE FT*LB FT*LB FT*LB FT*LB DEG_F

Created by Brian J. Ouellette

Page 21

CM870 COMMON APPROACH TO CONTROL SYSTEM DIAGNOSTICS 36. Net Torque Estimation Combustion Torque Determination: Filtered_Engine_Speed FSS_Total_Fueling CBP_SOI_Torque_Adj_Gain FSS_SOI CBR_SOI_Alpha1 SOI_Torque_To_Fuel_Adj Net Torque Determination: CBP_Net_Combustion_Torque EBP_EB_Torque E_Brake_Status Filtered_Net_Machine_Torque Engine Brake Torque Determination: Filtered_Engine_Speed Charge_Flow EB_Active_Driver_Fraction No Load Torque Determination: Filtered_Engine_Speed Zero_Fuel_Torque Coolant_Tmptr TQM_Final_Torque_Cmd Fueling_Control_State

RPM MG/STROKE MG/STROKE CRANK_DEG CRANK_DEG mg/strk/degBTDC

CBP_Adj_Total_Fueling Coolant_Torque_Adjustment C_CBP_Coolant_Torque_Adj_Factor CHP_Pumping_Torque_Adj CBP_Combustion_Torque CBP_Net_Combustion_Torque

MG/STROKE FT*LB --FT*LB FT*LB FT*LB

FT*LB FT*LB --FT*LB

AC_Torque Fan_Torque Net_Engine_Torque Net_Machine_Torque

FT*LB FT*LB FT*LB FT*LB

RPM LB/MIN ---

EBP_Adj_Charge_Flow EBP_EB_Torque Jcomm_Ind_Retarder_Torque

LB/MIN FT*LB FT*LB

RPM FT*LB DEG_F

Coolant_Torque_Adjustment Friction_Torque CHP_Pumping_Torque_Adj No_Load_Torque

FT*LB FT*LB FT*LB FT*LB

FT*LB ---

TQM_Net_Engine_Torque_State

---

RPM MG/STROKE IN_HG DEG_F IN_HG

Engine_Delta_Press CHP_Pumping_Torque_No_Offset CHP_Pumping_Torque_Adj Charge_Tmptr Charge_Press

IN_HG FT*LB FT*LB DEG_F IN_HG

FT*LB FT*LB

C_CBP_Coolant_Torque_Adj_Factor TQM_Final_Torque_Cmd

--FT*LB

RPM FT*LB --------LB/MIN

Total_Fueling Final_Timing CBL_EGR_Frac_Cmd CBL_MCF_Cmd

MG/STROKE CRANK_DEG --LB/MIN

CBL_Fuel_Ref CBL_SOI_Ref

MG/STROKE CRANK_DEG

37. Pumping Torque Estimation Filtered_Engine_Speed Net_Engine_Torque Pumping Torque Estimate: Filtered_Engine_Speed FSS_Total_Fueling CHP_Nominal_Engine_Delta_P Exhaust_Tmptr Exhaust_Press Torque Manager: TQM_Net_Engine_Torque_Cmd Coolant_Torque_Adjustment

RPM FT*LB

38. Combustion Manager (CBM) Filtered_Engine_Speed TQM_Final_Torque_Cmd TQM_Net_Engine_Torque_State Alpha EMM_Protection_State EMM_Cap_EL_Cmd EB_Charge_Flow_Command

39. Combustion Parameter Determination (CBP) [CBP] Combustion Parameter Determination: Filtered_Engine_Speed TQM_Final_Torque_Cmd TQM_Net_Engine_Torque_State CBR_Gross_Fuel

RPM FT*LB --MG/STROKE

Net_Engine_Torque OFC_Fuel_Limit Texh_Fuel_Limit

FT*LB MG/STROKE MG/STROKE

[CBP] Residual Mass Estimator: Exhaust_Press Exhaust_Tmptr

IN_HG DEG_F

Residual_Mass CBP_Residual_Mass

MG/STROKE MG/STROKE

Cummins Engine Co., Inc. Confidential

Created by Brian J. Ouellette

Page 22

CM870 COMMON APPROACH TO CONTROL SYSTEM DIAGNOSTICS [CBP] In-Cylinder Oxygen Estimator: Filtered_Engine_Speed Total_Fueling Charge_Flow EGR_Flow CHP_O2_Frac_EGR Air_Pressure_Sensor_Low_Error

RPM MG/STROKE LB/MIN LB/MIN -----

CBP_O2_Frac_Residual_Bef_Delay Total_O2_In_Cylinder

--MG/STROKE

CBP_Air_Mass CBP_Charge_Mass CBP_Charge_Plus_Fuel_Mass CBP_EGR_Mass CBP_O2_Frac_Residual CBP_O2_Mass_Air CBP_O2_Mass_Burnt CBP_O2_Mass_Exhaust

MG/STROKE MG/STROKE MG/STROKE MG/STROKE MG/STROKE MG/STROKE MG/STROKE MG/STROKE

[CBP] Air/Fuel and Charge/Fuel Calculations: Charge_Flow Fresh_Air_Flow Fuel_Delivery_Rate_Per_Min

LB/MIN LB/MIN LB/MIN

CBP_Air_Fuel_Ratio CBP_Charge_Fuel_Ratio CBP_Phi

-------

[CBP] OFC Fuel Limit Estimator: Filtered_Engine_Speed Total_Fueling Total_O2_In_Cylinder Fueling_Control_State

RPM MG/STROKE MG/STROKE ---

OFC_Fuel_Limit OFC_Equiv_Ratio_Limit

MG/STROKE ---

[CBP] Texhaust Fuel Limit Estimator: Filtered_Engine_Speed Charge_Flow Charge_Tmptr Exhaust_Tmptr TPE_Energy_Fraction

RPM LB/MIN DEG_F DEG_F DEG_F

TQM_Final_Torque_Cmd Fueling_Control_State Texh_Fuel_Limit Exhaust_Metal_Tmptr TFC_Fuel_Flow_Limit

----MG/STROKE DEG_F LB/MIN

[CBP] Net Engine Torque Estimation: Filtered_Engine_Speed FSS_Total_Fueling FSS_SOI CBR_SOI_Alpha1 CHP_Pumping_Torque_Adj Coolant_Torque_Adjustment Charge_Flow EB_Active_Driver_Fraction E_Brake_Status

RPM MG/STROKE CRANK_DEG CRANK_DEG FT*LB FT*LB LB/MIN -----

Net_Engine_Torque Jcomm_Ind_Retarder_Torque SOI_Torque_To_Fuel_Adj

FT*LB FT*LB MG/STROKE

CBP_Adj_Charge_Flow CBP_Adj_Total_Fueling CBP_Combustion_Torque CBP_EB_Torque CBP_SOI_Torque_Adj_Gain

LB/MIN MG/STROKE FT*LB FT*LB Mg/strk/degBTDC

CBR_Alpha CBR_Fuel_Ref CBR_Fuel_Ref_State CBR_EGR_Frac_Ref CBR_MCF_Ref CBR_SOI_Ref CBR_SOI_Alpha1 CBR_Base_Chi_SOI_Cmd Timing_State_Incr CBR_Charge_Tmptr_Ref CBR_NOx_Target_Ref CBR_FCLR_Ref OFC_EGR_Disable

--MG/STROKE ----LB/MIN CRANK_DEG CRANK_DEG CRANK_DEG --DEG_F G/HP*HR -----

40. Combustion Reference (CBR) [CBR] Combustion Reference: Filtered_Engine_Speed TQM_Final_Torque_Cmd TQM_Net_Engine_Torque_State OFC_Fuel_Limit Texh_Fuel_Limit Alpha Compressor_Inlet_Density Coolant_Tmptr FSS_Fueling_Derate_Request SOI_Torque_To_Fuel_Adj EMM_Cap_EL_Cmd EMM_Protection_State CBR_Chi_Value CBR_Chi_Source

Cummins Engine Co., Inc. Confidential

RPM FT*LB --MG/STROKE MG/STROKE --LBM/FT3 DEG_F MG/STROKE MG/STROKE ---------

Created by Brian J. Ouellette

Page 23

CM870 COMMON APPROACH TO CONTROL SYSTEM DIAGNOSTICS [CBR] Combustion Fuel Reference with Transient Correction: Filtered_Engine_Speed RPM TQM_Final_Torque_Cmd FT*LB TQM_Net_Engine_Torque_State --OFC_Fuel_Limit --Texh_Fuel_Limit --Compressor_Inlet_Density LBM/FT3 FSS_Fueling_Derate_Request MG/STROKE CBR_Gross_Fuel MG/STROKE CBR_Fuel_Ref MG/STROKE CBR_Fuel_Ref_State ---

CBR_FCLR_Ref CBR_FCLR_On CBR_FCLR_Off OFC_EGR_Disable CBR_Gross_Fuel_Before_Adj CBR_SOI_Adj_Fuel_Active SOI_Torque_To_Fuel_Adj CBR_Density_Max_Fuel CBR_Max_Chi_Fuel CBR_Max_Fuel_Limit

--------MG/STROKE --MG/STROKE MG/STROKE MG/STROKE MG/STROKE

[CBR] Chi Determination: Filtered_Engine_Speed TQM_Final_Torque_Cmd TQM_Net_Engine_Torque_State Compressor_Inlet_Density Coolant_Tmptr Alpha EMM_Cap_EL_Cmd EMM_Protection_State

RPM FT*LB --LBM/FT3 DEG_F LBM/FT3 -----

CBR_Chi_Value CBR_Chi_Desired CBR_Chi_Source CBR_Chi_High CBR_Chi_Low CBR_Alpha CBR_EGR_Off CBR_Protection_Chi_Flag

-----------------

[CBR] Combustion Reference Baseline: CBR_Base_Desired_Chi CBR_Base_Chi CBR_Base_Chi_Source CBR_Base_Chi_EGR_Frac_Cmd

---------

CBR_Base_EL CBR_Base_High_Table CBR_Base_Low_Table CBR_Base_Chi_SOI_Cmd

G/HP*HR ----CRANK_DEG

CBR_EGR_Frac_Alpha0 CBR_EGR_Frac_Alpha1 CBR_EGR_Frac_Chi2 CBR_EGR_Frac_Chi3 CBR_EGR_Frac_Chi4 CBR_EGR_Frac_Ref CBR_Base_Chi_EGR_Frac_Cmd

---------------

[CBR] EGR Fraction Reference with Transient Correction: Filtered_Engine_Speed RPM CBR_Gross_Fuel MG/STROKE CBR_Fuel_Ref_State --CBR_Alpha --CBR_Chi_Value --CBR_Base_Chi --CBR_EGR_Off --OFC_EGR_Disable --[CBR] Mass Charge Flow (MCF) Reference: Filtered_Engine_Speed CBR_Gross_Fuel CBR_Fuel_Ref_State CBR_Alpha CBR_Chi_Value

RPM MG/STROKE -------

CBR_MCF_Alpha0 CBR_MCF_Alpha1 CBR_MCF_Chi2 CBR_MCF_Chi3 CBR_MCF_Chi4 CBR_MCF_Ref

LB/MIN LB/MIN LB/MIN LB/MIN LB/MIN LB/MIN

[CBR] SOI Reference with Transient Correction: Filtered_Engine_Speed CBR_Fuel_Ref CBR_Fuel_Ref_State CBR_Alpha CBR_Chi_Value CBR_Base_Chi OFC_EGR_Disable Timing_State_Incr

RPM MG/STROKE -------------

CBR_SOI_Alpha0 CBR_SOI_Alpha1 CBR_SOI_Chi2 CBR_SOI_Chi3 CBR_SOI_Chi4 CBR_SOI_Ref CBR_OFC_Alpha0_Incr_Flag CBR_Base_Chi_SOI_Cmd

CRANK_DEG CRANK_DEG CRANK_DEG CRANK_DEG CRANK_DEG CRANK_DEG --CRANK_DEG

Cummins Engine Co., Inc. Confidential

Created by Brian J. Ouellette

Page 24

CM870 COMMON APPROACH TO CONTROL SYSTEM DIAGNOSTICS [CBR] Charge Temperature Reference: Filtered_Engine_Speed CBR_Fuel_Ref CBR_Fuel_Ref_State CBR_Alpha CBR_Chi_Value Charge_Tmptr

RPM MG/STROKE ------DEG_F

CBR_Charge_Tmptr_Alpha0 CBR_Charge_Tmptr_Alpha1 CBR_Charge_Tmptr_Chi2 CBR_Charge_Tmptr_Chi3 CBR_Charge_Tmptr_Chi4 CBR_Charge_Tmptr_Ref

DEG_F DEG_F DEG_F DEG_F DEG_F DEG_F

[CBR] Chi4 Combustion Reference: Filtered_Engine_Speed CBR_Fuel_Ref CBR_Fuel_Ref_State CBR_Alpha CBR_Chi_Value

RPM MG/STROKE -------

CBR_NOx_Alpha0 CBR_NOx_Alpha1 CBR_NOx_Chi2 CBR_NOx_Chi3 CBR_NOx_Chi4 CBR_NOx_Target_Ref

G/HP*HR G/HP*HR G/HP*HR G/HP*HR G/HP*HR G/HP*HR

[CBR] Chi Max Fuel Limit: Filtered_Engine_Speed TQM_Final_Torque_Cmd TQM_Net_Engine_Torque_State CBR_Gross_Fuel_Before_Adj CBR_Alpha CBR_Chi_Value CBR_Gross_Fuel

RPM FT*LB --MG/STROKE ----MG/STROKE

CBR_Max_Fuel_Alpha0 CBR_Max_Fuel_Alpha1 CBR_Max_Fuel_Chi2 CBR_Max_Fuel_Chi3 CBR_Max_Fuel_Chi4 CBR_Max_Chi_Fuel CBR_Fuel_Ref_State

MG/STROKE MG/STROKE MG/STROKE MG/STROKE MG/STROKE MG/STROKE ---

41. Compensate For Off-Nominal Combustion Conditions (CBO) Filtered_Engine_Speed TQM_Final_Torque_Cmd CBR_Fuel_Ref Fueling_Control_State CBR_EGR_Frac_Ref CBR_MCF_Ref CBR_SOI_Ref CBR_Charge_Tmptr_Ref CBR_Nox_Target_Ref CBR_FCLR_Ref EGR_Fraction Charge_Flow FSS_SOI Charge_Tmptr CBO_Fuel_Ref

RPM FT*LB MG/STROKE ----LB/MIN CRANK_DEG DEG_F G/HP*HR ----LB/MIN CRANK_DEG DEG_F MG/STROKE

CBO_EGR_Frac_Ref CBO_MCF_Ref CBO_SOI_Ref CBO_SOI_Adj_Flag CBO_Charge_Aggressiveness_Ref CBO_bsNOx CBO_Delta_SOI CBO_SOI_Adj CBO_SOI_Ref_Adj CBO_EGR_Frac_Adj CBO_Delta_EGR_Frac CBO_MCF_Adj CBO_Delta_MCF CBO_Charge_Tmptr_Adj CBO_Delta_Charge_Tmptr CBO_Composite_Adj

--LB/MIN CRANK_DEG ----G/HP*HR CRANK_DEG CRANK_DEG CRANK_DEG ----LB/MIN LB/MIN DEG_F DEG_F ---

RPM FT*LB MG/STROKE --CRANK_DEG --------LB/MIN --LBM/FT3 ---

CBL_Fuel_Cmd CBL_SOI_Cmd CBL_EGR_Frac_Cmd CBL_MCF_Cmd SOI_State Timing_State_Incr

MG/STROKE CRANK_DEG --LB/MIN -----

CBL_Density_MCF_Limit CBL_MCF_Ref CBL_SOI_Min_Limit CBL_SOI_Max_Limit CBL_SOI_Ref CBL_User_Incr_Flag SOI_State_Before_CBL

LB/MIN LB/MIN CRANK_DEG CRANK_DEG CRANK_DEG -----

42. Combustion Limit Management (CBL) Filtered_Engine_Speed TQM_Final_Torque_Cmd CBO_Fuel_Ref Fueling_Control_State ANC_SOI SOI_State Timing_State_Incr CBO_SOI_Adj_Flag CBO_EGR_Frac_Ref CBO_MCF_Ref CBR_OFC_Alpha0_Incr_Flag Compressor_Inlet_Density EGR_Valve_Is_Closed

Cummins Engine Co., Inc. Confidential

Created by Brian J. Ouellette

Page 25

CM870 COMMON APPROACH TO CONTROL SYSTEM DIAGNOSTICS 43. Charge Manager (CHM) Filtered_Engine_Speed TQM_Final_Torque_Cmd Total_Fueling Fueling_Control_State CBL_EGR_Frac_Cmd CBL_MCF_Cmd CBO_Charge_Aggressiveness_Ref EGR_Fraction Charge_Flow

RPM FT*LB MG/STROKE ----LB/MIN ----LB/MIN

CHL_EGR_Frac_Cmd CHL_MCF_Cmd

--LB/MIN

CSE_Xform_Error_1 CSE_Xform_Error_2 CSE_MCF_Error

----LB/MIN

EAC_EGR_Valve_Cmd TGC_VT_Cmd

%open %DutyCycle

RPM FT*LB MG/STROKE ---

Charge_Flow EGR_Flow EGR_Fraction Fresh_Air_Flow CHP_Pumping_Torque_Adj CHP_Predicted_IMT

LB/MIN LB/MIN --LB/MIN FT*LB DEG_F

RPM MG/STROKE FT*LB --LBM/FT3 LB/MIN LB/MIN LB/MIN KRPM KRPM DEG_F IN_HG

CBL_EGR_Frac_Cmd CHL_EGR_Frac_Cmd CHL_EGR_Frac_Cmd_With_Shutoff

-------

CHL_Derate_Is_Active CHL_COT_Drt_Active CHL_COT_Drt_Offset CHL_Delta_P_Drt_Active CHL_Delta_P_Drt_Offset CHL_Turbo_Speed_Drt_Active CHL_Turbo_Speed_Drt_Offset

----LB/MIN --LB/MIN --LB/MIN

RPM FT*LB MG/STROKE ------LB/MIN LB/MIN

CSE_Xform_Error_1 CSE_Xform_Error_2 CSE_MCF_Error

----LB/MIN

CSE_ERG_Frac_Error CSE_Xform_Angle CSE_Scheduled_Xform_Angle

--DEG DEG

RPM FT*LB MG/STROKE --FT*LB DEG_F FT --G/HP*HR

EMR_NTE_Flag EMR_Cap_EL_Ref

-----

EMM_AECD_State EMM_Protection_State EMM_Cap_EL_Cmd

-------

44. Charge Parameter Determination (CHP) Filtered_Engine_Speed TQM_Final_Torque_Cmd CBL_Fuel_Cmd Fueling_Control_State

45. Charge Limit Management (CHL) Filtered_Engine_Speed FSS_Total_Fueling TQM_Final_Torque_Cmd Fueling_Control_State Compressor_Inlet_Density Charge_Flow CHS_MCF_Cmd CHL_MCF_Cmd Filtered_Turbo_Speed CHL_Turbo_Drt_Limit Compressor_Outlet_Tmptr EGR_Valve_Delta_Press

46. Determine Charge System Errors (CSE) Filtered_Engine_Speed TQM_Final_Torque_Cmd FSS_Total_Fueling Fueling_Control_State CHL_EGR_Frac_Cmd EGR_Fraction CHL_MCF_Cmd Charge_Flow

47. Emissions Manager (EMM) Filtered_Engine_Speed TQM_Final_Torque_Cmd Total_Fueling Fueling_Control_State Net_Engine_Torque Ambient_Air_Tmptr Altitude Alpha CBO_bsNOx

Cummins Engine Co., Inc. Confidential

Created by Brian J. Ouellette

Page 26

CM870 COMMON APPROACH TO CONTROL SYSTEM DIAGNOSTICS 48. Emission Reference (EMR) Filtered_Engine_Speed TQM_Final_Torque_Cmd Total_Fueling Fueling_Control_State Net_Engine_Torque

RPM FT*LB MG/STROKE --FT*LB

Ambient_Air_Tmptr Altitude

DEG_F FT

EMR_NTE_Flag EMR_Cap_EL_Ref

-----

49. Compensate For Off-Nominal Emission Conditions (EMO) Filtered_Engine_Speed Filtered_Turbo_Speed Net_Machine_Torque Ambient_Air_Tmptr Altitude Compressor_Outlet_Tmptr Exhaust_Tmptr Coolant_Tmptr Charge_Tmptr Charge_Flow Charge_H2O_PP Exhaust_H2O_PP CHP_Predicted_IMT Engine_Is_Active Engine_Is_Starting EMR_Cap_EL_Ref

Cummins Engine Co., Inc. Confidential

RPM KRPM FT*LB DEG_F FT DEG_F DEG_F DEG_F DEG_F LB/MIN DEG_F -------

EMO_Air_Handling_Cap_EL EMO_Air_Handling_AECD_Active EMO_Extreme_Amb_Cap_EL EMO_Extreme_Amb_AECD_Active EMO_Condensation_Cap_EL EMO_Condensation_AECD_Active EMO_White_Smoke_Cap_EL EMO_White_Smoke_AECD_State EMO_Extended_Idle_Cap_EL EMO_Extended_Idle_AECD_Active EMO_Engine_Start_Cap_EL EMO_Engine_Start_AECD_Active EMO_Gen_Protect_Cap_EL EMO_Gen_Protect_AECD_State

-----------------------------

EMM_Cap_EL_Cmd EMM_AECD_State EMM_Protection_State

-------

Created by Brian J. Ouellette

Page 27

CM870 COMMON APPROACH TO CONTROL SYSTEM DIAGNOSTICS Emission Controls AECDs:

50. Condensation Protection AECD Filtered_Engine_Speed Total_Fueling Fueling_Control_State Charge_Flow Charge_H2O_PP Exhaust_H2O_PP CHP_Predicted_IMT Coolant_Tmptr Engine_Is_Active

RPM MG/STROKE --LB/MIN IN_HG IN_HG DEG_F DEG_F ---

EMO_Condensation_Cap_EL EMO_Condensation_AECD_Active EMM_AECD_State EMM_Protection_State

---------

EMO_Cooler_Cond_Delta_T EMO_Cond_AECD_Timer_Active EMO_Cooler_Cond_Adj_Off_Gain EMO_Cooler_Cond_Adj_On_Gain EMO_Cooler_Cond_AECD_Active EMO_Cooler_Cond_AECD_Possible EMO_Intake_Cond_Delta_T EMO_Intake_Cond_Adj_Off_Gain EMO_Intake_Cond_Adj_On_Gain EMO_Intake_Cond_AECD_Active EMO_Intake_Cond_AECD_Possible

DEG_F ----------DEG_F ---------

Charge_Saturation_Tmptr Exhaust_Saturation_Tmptr EMO_Cooler_Cond_Count EMO_Intake_Cond_Count

DEG_F DEG_F CNTS CNTS

EMO_Air_AECD_Level_1 EMO_Air_AECD_Level_2 EMO_Air_AECD_Level_2_Allowed EMO_Air_AECD_Level_3 EMO_Air_AECD_Level_3_Allowed EMO_Air_Handling_COT_Limit EMO_Air_Handling_Near_Limit EMO_Air_Handling_Speed_Limit EMO_Air_Handling_Texh_Limit EMO_High_Load EMO_Near_COT_Limit EMO_Near_Speed_Limit EMO_Near_Texh_Limit

----------DEG_F --KRPM DEG_F ---------

RPM FT*LB MG/STROKE --DEG_F

EMO_Extreme_Amb_Cap_EL EMO_Extreme_Amb_AECD_Active EMM_AECD_State EMM_Protection_State

---------

RPM FT*LB MG/STROKE --CRANK_DEG --DEG_F DEG_F

Coolant_SOI_Advance IMT_SOI_Advance CBR_Base_Chi_SOI_Cmd

CRANK_DEG CRANK_DEG CRANK_DEG

EMO_White_Smoke_Cap_EL EMO_White_Smoke_AECD_State EMM_AECD_State EMM_Protection_State

---------

RPM ----FT*LB

EMO_Extended_Idle_Cap_EL EMO_Extended_Idle_AECD_Active EMM_AECD_State EMM_Protection_State

---------

51. Air Handling System Protection AECD Filtered_Engine_Speed Filtered_Turbo_Speed Net_Machine_Torque Ambient_Air_Tmptr Altitude Compressor_Outlet_Tmptr Exhaust_Tmptr

RPM KRPM FT*LB DEG_F FT DEG_F DEG_F

EMO_Air_Handling_Cap_EL EMO_Air_Handling_AECD_Active EMM_AECD_State EMM_Protection_State

---------

52. Extreme Ambient Overheat AECD Filtered_Engine_Speed TQM_Final_Torque_Cmd Total_Fueling Fueling_Control_State Coolant_Tmptr

53. White Smoke / Misfire AECD Filtered_Engine_Speed TQM_Final_Torque_Cmd Total_Fueling Fueling_Control_State Final_Timing Final_Timing_State Coolant_Tmptr Charge_Tmptr

54. Extended Idle / PTO AECD Filtered_Engine_Speed Engine_Is_Active Ndot_Net_Torque_Cmd_State Ndot_Net_Torque_Cmd

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CM870 COMMON APPROACH TO CONTROL SYSTEM DIAGNOSTICS 55. General Engine Protection AECD Filtered_Engine_Speed Fueling_Control_State CHH_EGR_System_Failure CHH_VGT_System_Failure CHH_Major_Engine_Protection CHH_Minor_Engine_Protection

RPM -----------

CLS_Low_Coolant_Error Turboconveyor_Is_Active EMO_Gen_Protect_AECD_State EMO_Gen_Protect_Cap_EL EMM_AECD_State EMM_Protection_State

-------------

RPM -----

EMO_Engine_Start_Cap_EL EMO_Engine_Start_AECD_Active EMM_AECD_State EMM_Protection_State

---------

RPM MG/STROKE FT*LB --IN_HG --IN_HG --IN_HG --DEG_F ---

CHH_VGT_System_Failure CHH_EGR_System_Failure TQM_Final_Torque_Cmd TQM_Current_Max_Derate_Torque TQM_Current_No_Derate_Torque

----FT*LB FT*LB FT*LB

CHH_Sensor_Fault_Derate_Index CHH_Charge_Mgr_Derate_Torque CHH_Major_Engine_Protection CHH_Minor_Engine_Protection

--FT*LB -----

56. Engine Starting / Warm-Up AECD Filtered_Engine_Speed Fueling_Control_State Engine_Is_Starting

57. Charge System Engine Protection Filtered_Engine_Speed Total_Fueling Net_Engine_Torque Fueling_Control_State Ambient_Air_Press Air_Press_Source Exhaust_Press Exhaust_Press_Source Charge_Press Charge_Press_Source Charge_Tmptr Charge_Tmptr_Source

58. EGR System Monitor (CHH) Filtered_Engine_Speed FSS_Total_Fueling Fueling_Control_State Charge_Press Charge_Press_Source Charge_Tmptr Charge_Tmptr_Source Eshaust_Press Exhaust_Press_Source EGR_Position EGR_Position_Source EGR_Delta_Press EGR_Delta_Press_Source

RPM MG/STROKE --IN_HG --DEG_F --IN_HG --%open --IN_HG ---

EGR_Orifice_Tmptr EGR_Orifice_Tmptr_Source C_CHH_EGRT_Disable_Thd C_CHH_EGRT_Enable_Thd EGA_Temperature EGA_Over_Temperature EGA_Valve_Fault_Over_Tmptr EGR_Motor_Current EGA_Driver_Over_Current EGA_Electrical_Fault CHH_EGR_System_Failure CHH_CBO_Off

DEG_F --DEG_F DEG_F DEG_F ----AMP ---------

EGA_Zero_Hold_Status T_EGA_Cycle_Counter

--CNTS

[CHH] EGR Cooler Fouling Monitor: Filtered_Engine_Speed Total_Fueling Fueling_Control_State Coolant_Tmptr Exhaust_Tmptr EGR_Orifice_Tmptr EGR_Flow CHH_EGR_Cooler_Fouled

RPM MG/STROKE --DEG_F DEG_F DEG_F LB/MIN ---

Coolant_Tmptr_Source Exhaust_Tmptr_Source EGR_Orifice_Tmptr_Source EGR_Flow_Source EGR_Cooler_Fouling_Precondition EGR_Cooler_Eff EGR_Cooler_Eff_Thd EGR_Cooler_Fouling_Fault_Count

----------% % SEC

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CM870 COMMON APPROACH TO CONTROL SYSTEM DIAGNOSTICS 59. EGR Valve Position Command Filtered_Engine_Speed TQM_Final_Torque_Cmd Total_Fueling Fueling_Control_State Charge_Flow CHL_EGR_Frac_Cmd CSE_MCF_Error CSE_Xform_Error_1 EGR_Valve_Delta_Press

RPM FT*LB MG/STROKE --LB/MIN --LB/MIN --IN_HG

T_EGA_Cycle_Counter

CNTS

EAC_EGR_Valve_Cmd EGR_ Position EAC_Adjusted_I_Gain EAC_Adjusted_P_Gain EAC_EGR_Valve_High EAC_EGR_Valve_Low EAC_Feedforward_Term EAC_Integral_Term EAC_Proportional_Term EAC_Preset EAC_Preset_Lift Preset

%open %open ----% % % % % % % ---

60. EGR Valve Position Autozero EGR_Position_Sensor EGR_Position_Status EGR Valve Position AZ Enabler: T_EGR_Pos_AZ_Logic_Enable EGA_Autozero_Enable EGA_Zero_Hold_Status

%open ---------

EGR Position AZ Logic: C_EGR_Position_AZ_Tolerance C_EGR_Position_AZ_Enable_Time C_EGR_Position_AZ_Fault_Time T_EGR_Clr_Autozero_Error_Count EGR_Valve_Autozero_Error

EGA_PWM_Diagnostic_Override EGR_Valve_Autozero_Enabled EGR_Valve_Is_Closed EGA_Control_Error

---------

%open SEC SEC -----

EGR_Valve_Position_Offset EGR_Position_AP EGR_Position EGR_Position_State EGR_Position_Source

%open %open %open -----

RPM FT*LB MG/STROKE ----LB/MIN --IN_HG

TGC_VT_Cmd VGT_Duty_Cycle TGC_Adjusted_I_Gain TGC_Adjusted_P_Gain TGC_Error_Based_P_Gain TGC_Feedforward_Term TGC_Integral_Term TGC_Proportional_Term TGC_Transient_Gain_Adj

% %DutyCycle ------% % % ---

--VOLT ---

TB_Air_Shutoff_Valve_PWM_Duty_Cycle TB_Air_Shutoff_Valve_Pull_In_Duty_Cycle TB_Air_Shutoff_Valve_Pull_In_Timer

% % SEC

61. VG Turbocharger Duty Cycle Command Filtered_Engine_Speed TQM_Final_Torque_Cmd Total_Fueling Fueling_Control_State CBO_Charge_Aggressiveness_Ref CSE_MCF_Error CSE_Xform_Error_2 EGR_Valve_Delta_Press

62. VG Air Shutoff Valve Controls Keyswitch Battery_Volt TB_Air_Shutoff_Valve

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CM870 COMMON APPROACH TO CONTROL SYSTEM DIAGNOSTICS Performance Diagnostics: 63. Charge Flow Derates [Charge Limit Manager (CHL)] Filtered_Engine_Speed TQM_Final_Torque_Cmd Total_Fueling

RPM FT*LB MG/STROKE

Fueling_Control_State_Value Charge_Press Exhaust_Press

--IN_HG IN_HG

[CHL] Delta-P Derate Function: EGR_Valve_Delta_Press C_CHL_Delta_P_Drt_Limit C_CHL_Delta_P_Drt_Ratio Charge_Flow CHS_MCF_Cmd

IN_HG IN_HG --LB/MIN LB/MIN

CHL_Derate_Is_Active CHL_Delta_P_Drt_Active CHL_Delta_P_Drt_Offset CHL_MCF_Cmd C_CHL_Delta_P_Drt_Fil_Cnst

----LB/MIN LB/MIN ---

[CHL] COT Derate Function: Compressor_Outlet_Tmptr C_CHL_COT_Drt_Limit C_CHL_COT_Drt_Ratio Charge_Flow CHS_MCF_Cmd

DEG_F DEG_F --LB/MIN LB/MIN

CHL_Derate_Is_Active CHL_COT_Drt_Active CHL_COT_Drt_Offset CHL_MCF_Cmd C_CHL_COT_Drt_Fil_Cnst

----LB/MIN LB/MIN ---

[CHL] Turbo Speed Derate Function: Compressor_Inlet_Density Filtered_Turbo_Speed CHL_Turbo_Drt_Limit C_CHL_Turbo_Drt_Ratio Charge_Flow CHS_MCF_Cmd

LBM/FT3 KRPM KRPM --LB/MIN LB/MIN

CHL_Derate_Is_Active CHL_Turbo_Speed_Drt_Active CHL_Turbo_Speed_Drt_Offset CHL_MCF_Cmd C_CHL_Turbo_Drt_Fil_Cnst

----LB/MIN LB/MIN ---

CBR_Fuel_Ref CBR_FCLR_Ref CBR_FCLR_On CBR_FCLR_Off OFC_EGR_Disable

MG/STROKE ---------

RPM FT*LB MG/STROKE ---

Texh_Fuel_Limit Exhaust_Metal_Tmptr CBR_Gross_Fuel CBR_Fuel_Ref

MG/STROKE DEG_F MG/STROKE MG/STROKE

RPM FT*LB MG/STROKE --LBM/FT3 DEG_F ---------

CBR_Chi_Value CBR_Chi_Desired CBR_Chi_Source CBR_Alpha CBR_Protection_Chi_Flag T_CBR_Chi_Selective_Override C_CBR_Chi_Override_LowTable C_CBR_Chi_Override_HighTable T_CBR_Chi_User_Override C_CBR_Chi_Override_Value

64. Oxygen / Fuel Control (OFC) Fuel Limit Filtered_Engine_Speed TQM_Final_Torque_Cmd Total_Fueling Fueling_Control_State_Value OFC_Fuel_Limit CBR_Gross_Fuel

RPM FT*LB MG/STROKE --MG/STROKE MG/STROKE

65. Exhaust Temperature (Texh) Fuel Limit Filtered_Engine_Speed TQM_Final_Torque_Cmd Total_Fueling Fueling_Control_State_Value

66. Chi Determination Filtered_Engine_Speed TQM_Final_Torque_Cmd Total_Fueling Fueling_Control_State_Value Compressor_Inlet_Density Coolant_Tmptr Alpha EMM_Cap_EL_Cmd EMM_Protection_State CBR_EGR_Off

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----------ENABLE / DISABLE --ENABLE / DISABLE

Page 31

CM870 COMMON APPROACH TO CONTROL SYSTEM DIAGNOSTICS 67. Altitude Performance Filtered_Engine_Speed Total_Fueling Fueling_Control_State_Value Final_Timing Ambient_Air_Press Ambient_Air_Tmptr Compressor_Inlet_Density CBR_Chi_Value Altitude EGR_Valve_Delta_Press Exhaust_Tmptr Exhaust_Metal_Tmptr Ndot_Net_Torque_Cmd Altitude_Derate_Torque CBR_Density_Max_Fuel

RPM MG/STROKE --CRANK_DEG IN_HG IN_HG LBM/FT3 --FT IN_HG DEG_F DEG_F FT*LB FT*LB MG/STROKE

CHL_MCF_Cmd Charge_Flow CHL_EGR_Frac_Cmd EGR_Fraction EGR_Position VGT_Duty_Cycle Compressor_Outlet_Tmptr Compressor_Inlet_Tmptr Compressor_Inlet_Press Charge_Press Charge_Tmptr Exhaust_Press Filtered_Turbo_Speed EMM_AECD_State EMM_Protection_State

LB/MIN LB/MIN ----%open %DutyCycle DEG_F DEG_F IN_HG IN_HG DEG_F IN_HG KRPM -----

RPM FT*LB MG/STROKE --------IN_HG DEG_F DEG_F

Compressor_Outlet_Tmptr Filtered_Turbo_Speed EGR_Position EGA_Control_State EGR_Valve_Delta_Press EGR_Orifice_Delta_Press CHL_EGR_Frac_Cmd EGR_Fraction CHL_MCF_Cmd Charge_Flow

DEG_F KRPM %open --IN_HG IN_HG ----LB/MIN LB/MIN

RPM FT*LB MG/STROKE ----------DEG_F

EGR_Position EGA_Control_State EGR_Valve_Delta_Press EGR_Orifice_Delta_Press EGR_Valve_Is_Closed CHL_EGR_Frac_Cmd EMM_AECD_State EMM_Protection_State CHH_EGRT_Over_Temperature

%open --IN_HG IN_HG -----------

RPM MG/STROKE --%open %open -------

CHL_MCF_Cmd Charge_Flow CSE_Xform_Error_1 CSE_Xform_Angle EGR_Valve_Is_Closed EGR_Valve_Delta_Press Charge_Tmptr T_EGA_Cycle_Counter

LB/MIN LB/MIN --DEG --IN_HG DEG_F CNTS

RPM MG/STROKE --%DutyCycle % IN_HG KRPM

CHL_EGR_Frac_Cmd EGR_Fraction CHL_MCF_Cmd Charge_Flow CSE_Xform_Error_2 CSE_Xform_Angle

----LB/MIN LB/MIN --DEG

68. EGR On Conditions Filtered_Engine_Speed TQM_Final_Torque_Cmd Total_Fueling Fueling_Control_State_Value CBR_Chi_Value CBR_Chi_Source CBR_Alpha Charge_Press Charge_Tmptr Coolant_Tmptr

69. EGR Off Conditions Filtered_Engine_Speed TQM_Final_Torque_Cmd Total_Fueling Fueling_Control_State_Value CBR_Chi_Value CBR_Chi_Source CBR_Alpha CBR_EGR_Off EGR_Orifice_Tmptr

70. EGR Valve Controller Filtered_Engine_Speed Total_Fueling Fueling_Control_State_Value EGR_Position EAC_EGR_Valve_Cmd EGA_Control_State CHL_EGR_Frac_Cmd EGR_Fraction

71. VGT Pneumatic Controller Filtered_Engine_Speed Total_Fueling Fueling_Control_State_Value VGT_Duty_Cycle TGC_VT_Cmd Charge_Press Filtered_Turbo_Speed

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CM870 COMMON APPROACH TO CONTROL SYSTEM DIAGNOSTICS 72. EGR Motor Diagnostics Filtered_Engine_Speed TQM_Final_Torque_Cmd Total_Fueling Fueling_Control_State_Value EGR_Position EAC_EGR_Valve_Cmd EGA_Position_Cmd_Final EGA_Control_State EGR_Valve_Delta_Press EGR_Orifice_Delta_Press EGR_Fraction CHL_EGR_Frac_Cmd T_EGA_Cycle_Counter

RPM FT*LB MG/SSTROKE --%open %open %open --IN_HG IN_HG ----CNTS

EGA_Control_Error EGA_Electrical_Fault EGA_Over_Temperature EGA_Driver_Over_Current EGA_Motor_OK EGA_Zero_Hold_Status EGR_Valve_Autozero_Error EGA_PWM_Enable EGA_PWM_Diagnostic_Override EGA_PWM_Limited EGR_Motor_Current EGA_Temperature

------------------%DUTY_CYCLE AMP DEG_F

RPM FT*LB MG/STROKE MG/STROKE --IN_HG IN_HG DEG_F --IN_HG

EGR_Delta_P_Sensor EGR_Delta_P_Sensor_Raw EGR_Delta_Press_Sensor EGR_Delta_Press_Status EGR_Delta_P_Sensor_High_Error EGR_Delta_P_Sensor_Low_Error EGR_Orifice_Delta_Press EGR_Valve_Delta_Press EGR_Delta_P_Autozero_Error

IN_HG CNTS IN_HG ------IN_HG IN_HG ---

EGR Delta P In-Range Rationality Diagnostics: Filtered_Engine_Speed Net_Engine_Torque EGR_Position Engine_Delta_Press EGR_Delta_Press_AP EGR_Delta_Press_State EGR_Delta_Press_Keyon_Error T_EGR_DP_IR_Enable EGR_Delta_Press EGR_Delta_Press_Source

RPM FT*LB %open IN_HG IN_HG ----HEX IN_HG ---

EGR_DP_IR_Open_Error EGR_DP_IR_Open_Enable_Cond EGR_DP_IR_Open_Fault_Cond EGR_DP_IR_Open_Fault_Cnt EGR_DP_IR_Closed_Error EGR_DP_IR_Closed_Enable_Cond EGR_DP_IR_Closed_Fault_Cond EGR_DP_IR_Closed_Fault_Cnt

------CNTS ------CNTS

EGR_DP_IR_Error

---

EGR Delta P Key-On Pressure Check: Engine_State EGR_Position EGR_Position_Status EGR_Delta_Press EGR_Delta_Press_Status EGR_Delta_P_Autozero_Error

--%open --IN_HG -----

EGR_Delta_Press_Check_Enable EGR_Delta_Press_Check_Timer EGR_Delta_Press_Keyon_Error EGR_DP_IR_Open_Error EGR_DP_IR_Closed_Error T_EGR_DP_IR_Startup_Enable

--SEC ------HEX

Filtered_Engine_Speed TQM_Final_Torque_Cmd Net_Engine_Torque Total_Fueling Fueling_Control_State_Value

RPM FT*LB FT*LB MG/STROKE ---

Ndot_Net_Torque_Cmd TQM_Machine_Torque_Limit TQM_Net_Machine_Torque_Cmd TQM_Net_Engine_Torque_Rqst TQM_Engine_Torque_Limit

FT*LB FT*LB FT*LB FT*LB FT*LB

Torque_Derate_Override_Enable C_TQM_No_Derate_Torque

--FT*LB

73. EGR Delta P Sensor Diagnostics Filtered_Engine_Speed TQM_Final_Torque_Cmd CBR_Fuel_Ref Total_Fueling Fueling_Control_State_Value Charge_Press Exhaust_Press Charge_Tmptr EGR_Delta_P_Sensor_Override EGR_Delta_P_Sensor_User_Value

74. Torque Manager Derates

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CM870 COMMON APPROACH TO CONTROL SYSTEM DIAGNOSTICS ETIF Performance Evaluation:

75. EGR Valve and VGT Behavior Filtered_Engine_Speed Total_Fueling Net_Engine_Torque Fueling_Control_State_Value Road_Speed CHL_EGR_Frac_Cmd EGR_Fraction CHL_MCF_Cmd Charge_Flow EGR_Position VGT_Duty_Cycle Compressor_Inlet_Density T_EGA_Cycle_Counter

RPM MG/STROKE FT*LB --MPH ----LB/MIN LB/MIN %open %DutyCycle LBM/FT3 CNTS

Filtered_Turbo_Speed Charge_Press Exhaust_Press EGR_Delta_Press EGR_Valve_Delta_Press OFC_Fuel_Limit CBR_FCLR_Off CBR_FCLR_On Alpha CBR_Chi_Value CSE_Xform_Angle Ambient_Air_Press

KRPM IN_HG IN_HG IN_HG IN_HG MG/STROKE --------DEG IN_HG

RPM MG/STROKE %THROTTLE MPH --FT*LB FT*LB % -------

EB_Active_Driver_Fraction E_Brake_Command_Source EB_Charge_Flow_Command CHL_MCF_Cmd Charge_Flow Charge_Press Exhaust_Press Ambient_Air_Press Compressor_Inlet_Density EGR_Position VGT_Duty_Cycle

----LB/MIN LB/MIN LB/MIN IN_HG IN_HG IN_HG LBM/FT3 %open %DutyCycle

RPM FT*LB FT*LB MG/STROKE --%THROTTLE ----MPH RPM/SEC RPM/SEC RPM/SEC

Ndot_Proportional_Gain Ndot_Integral_Gain LSG_Reference_Speed HSG_Active_Breakpoint CHL_EGR_Frac_Cmd EGR_Fraction CHL_MCF_Cmd Charge_Flow EGR_Valve_Position VGT_Duty_Cycle System_Switch_Status System_Switch_Status_2

LBF/RPM/SEC --RPM RPM ----LB/MIN LB/MIN %open %DutyCycle -----

RPM MG/STROKE FT*LB --%THROTTLE MPH ----LB/MIN LB/MIN LB/MIN %open %DutyCycle KRPM

Charge_Press Charge_Tmptr Ambient_Air_Press EGR_Valve_Delta_Press EGR_Delta_Press OFC_Fuel_Limit Alpha CBR_Chi_Value CBR_FCLR_Off CBR_FCLR_On CBR_FCLR_Ref CHL_Delta_P_Drt_Active CHL_COT_Drt_Active CHL_Turbo_Speed_Drt_Active

IN_HG DEG_F IN_HG IN_HG IN_HG MG/STROKE -----------------

76. Engine Brake Performance Filtered_Engine_Speed Filtered_Turbo_Speed Commanded_Throttle Road_Speed EB_Switch_Command EB_Switch_Torque EB_Adj_Torque_Command EB_Driver_Level Engine_Brake_Driver_1 Engine_Brake_Driver_2 Engine_Brake_Driver_3

77. Clutch Engagement Performance LEVEL GROUND / GRADE: Filtered_Engine_Speed Ndot_Net_Torque_Cmd TQM_Final_Torque_Cmd Total_Fueling Fueling_Control_State_Value Commanded_Throttle Effective_Gear_Ratio Filtered_Gear_Ratio Road_Speed Ndot_LSG Ndot_HSG Ndot_Demand

78. Engine Lug Up / Lug Down Filtered_Engine_Speed Total_Fueling TQM_Final_Torque_Cmd Fueling_Control_State_Value Commanded_Throttle Road_Speed CHL_EGR_Frac_Cmd EGR_Fraction CHL_MCF_Cmd CHS_MCF_Cmd Charge_Flow EGR_Position VGT_Duty_Cycle Filtered_Turbo_Speed

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CM870 COMMON APPROACH TO CONTROL SYSTEM DIAGNOSTICS 79. Torque Response Filtered_Engine_Speed TQM_Final_Torque_Cmd TQM_Net_Machine_Torque_Cmd Total_Fueling CBR_Gross_Fuel Fueling_Control_State_Value Commanded_Throttle Alpha CBR_Chi_Value Ambient_Air_Press

RPM FT*LB FT*LB MG/STROKE MG/STROKE --%THROTTLE ----IN_HG

Road_Speed Charge_Press Filtered_Turbo_Speed VGT_Duty_Cycle Charge_Flow CHL_MCF_Cmd Compressor_Outlet_Tmptr EGR _Position EGR_Valve_Delta_Press EGR_Delta_Press

MPH IN_HG KRPM %DutyCycle LB/MIN LB/MIN DEG_F %open IN_HG IN_HG

RPM MG/STROKE --%THROTTLE --MPH IN_HG IN_HG MG/STROKE IN_HG DEG_F LBM/FT3 DEG_F FT*LB FT*LB

Alpha CBR_Chi_Value CBL_EGR_Frac_Cmd CHL_EGR_Frac_Cmd EGR_Fraction CHS_MCF_Cmd CHL_MCF_Cmd Charge_Flow CSE_Xform_Angle CSE_Xform_Error_1 CSE_Xform_Error_2 EGR_Position VGT_Duty_Cycle Filtered_Turbo_Speed

----------LB/MIN LB/MIN LB/MIN DEG ----%open %DutyCycle KRPM

RPM MG/STROKE --CRANK_DEG --CRANK_DEG CRANK_DEG CRANK_DEG

Sampled_Throttle_Raw Charge_Tmptr Coolant_Tmptr Ambient_Air_Tmptr Ambient_Air_Press T_EGR_Delta_P_Autozero_Offset

CNTS DEG_F DEG_F DEG_F IN_HG IN_HG

RPM MG/STROKE --MSEC RPM ----RPM RPM RPM

CHL_EGR_Frac_Cmd EGR_Fraction CHL_MCF_Cmd Charge_Flow EGR_Position VGT_Duty_Cycle Boost_Pressure System_Switch_Status Charge_Tmptr Coolant_Tmptr Oil_Tmptr

----LB/MIN LB/MIN %open %DutyCycle IN_HG --DEG_F DEG_F DEG_F

80. Coupled Controller Performance During Gear Shifts Filtered_Engine_Speed Total_Fueling Fueling_Control_State_Value Commanded_Throttle Filtered_Gear_Ratio Road_Speed Charge_Press EGR_Valve_Delta_Press OFC_Fuel_Limit Ambient_Air_Press Compressor_Inlet_Tmptr Compressor_Inlet_Density Compressor_Outlet_Tmptr Net_Machine_Torque TQM_Final_Torque_Cmd

81. Coolant and IMT Advance Control Filtered_Engine_Speed Total_Fueling Fueling_Control_State_Value Final_Timing Final_Timing_State CBR_SOI_Ref Coolant_SOI_Advance IMT_SOI_Advance

82. PTO Response COLD ENGINE / WARM ENGINE: Filtered_Engine_Speed Total_Fueling Fueling_Control_State_Value FTT_ti_BaseFlTTL_v PTO_Requested_Speed PTO_State PTO_Status HSG_Active_Breakpoint LSG_Reference_Speed PTO_Maximum_Reference_Speed

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CM870 COMMON APPROACH TO CONTROL SYSTEM DIAGNOSTICS 83. Snap Throttle Response (HSG/LSG Stationary) Filtered_Engine_Speed Total_Fueling Fueling_Control_State_Value Commanded_Throttle Sampled_Throttle_Raw HSG_Active_Breakpoint CHL_EGR_Frac_Cmd EGR_Fraction CHL_MCF_Cmd Charge_Flow EGR_Position VGT_Duty_Cycle

RPM MG/STROKE --%THROTTLE CNTS RPM ----LB/MIN LB/MIN %open %DutyCycle

Boost_Pressure OFC_Fuel_Limit EGR_Valve_Delta_Press CSE_Xform_Angle User_Selected_Throttle_Control Oil_Tmptr Charge_Tmptr Ambient_Air_Press CBR_FCLR_Off CBR_FCLR_On T_EGR_Delta_P_Autozero_Offset

IN_HG MG/STROKE IN_HG DEG --DEG_F DEG_F IN_HG ----IN_HG

WARM ENGINE START-UP: Filtered_Engine_Speed Total_Fueling Fueling_Control_State Final_Timing Final_Timing_State Crank_Jumpstart_Timer Fuel_Rail_Pressure Charge_Tmptr Oil_Tmptr Oil_Press Coolant_Tmptr Ambient_Air_Press Ambient_Air_Tmptr LSG_Reference_Speed Crank_Exit_Speed Crank_Exit_Fuel T_EGR_Delta_P_Autozero_Offset EGR_Fraction CHL_EGR_Frac_Cmd Charge_Flow CHL_MCF_Cmd EGR_Position VGT_Duty_Cycle

RPM MG/STROKE --CRANK_DEG --SEC PSI_A DEG_F DEG_F PSI DEG_F IN_HG DEG_F RPM RPM MG/STROKE IN_HG ----LB/MIN LB/MIN %open %DutyCycle

RPM MG/STROKE --MSEC 1/SEC RPM/SEC FT*LB DEG_F DEG_F

CHL_EGR_Frac_Cmd EGR_Fraction CHL_MCF_Cmd Charge_Flow EGR_Position VGT_Duty_Cycle Alpha T_EGR_Delta_P_Autozero_Offset

----LB/MIN LB/MIN %open %DutyCycle --IN_HG

RPM MG/STROKE --MSEC --RPM

PTO_State PTO_Status Charge_Tmptr Coolant_Tmptr Oil_Tmptr

----DEG_F DEG_F DEG_F

84. Engine Start-Up COLD ENGINE START-UP: Filtered_Engine_Speed Total_Fueling Fueling_Control_State_Value Final_Timing Final_Timing_State EPS_Main_Sync_State EPS_Backup_Sync_State Fuel_Rail_Pressure Battery_Volt Charge_Tmptr Oil_Tmptr Oil_Press Coolant_Tmptr Ambient_Air_Press Compressor_Inlet_Tmptr LSG_Reference_Speed Crank_Exit_Speed Crank_Exit_Fuel T_EGR_Delta_P_Autozero_Offset

RPM MG/STROKE --CRANK_DEG ------PSI_A VOLT DEG_F DEG_F PSI DEG_F IN_HG DEG_F RPM RPM MG/STROKE IN_HG

85. Low Idle Stability, Stationary Filtered_Engine_Speed Total_Fueling Fueling_Control_State_Value FTT_ti_BaseFlTTL_v LSG_Proportional_Gain Ndot_LSG TQM_Net_Engine_Torque_Rqst Charge_Tmptr Coolant_Tmptr

86. PTO Pump-Off Filtered_Engine_Speed Total_Fueling Fueling_Control_State_Value FTT_ti_BaseFlTTL_V PTO_Requested_Speed HSG_Active_Breakpoint

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CM870 COMMON APPROACH TO CONTROL SYSTEM DIAGNOSTICS 87. Throttle Characterization Filtered_Engine_Speed Commanded_Throttle Sampled_Throttle_Raw Throttle_Status Total_Fueling Fueling_Control_State_Value Sampled_Throttle Throttle_Min User_Selected_Throttle_Control Auto_Zero Throttle_Deadband

RPM %THROTTLE CNTS --MG/STROKE --% %THROTTLE --%THROTTLE %THROTTLE

FTT_ti_BaseFlTTL_v CHL_EGR_Frac_Cmd EGR_Fraction CHL_MCF_Cmd Charge_Flow EGR_Position VGT_Duty_Cycle Boost_Pressure

MSEC ----LB/MIN LB/MIN %open %DutyCycle IN_HG

RPM MG/STROKE --CRANK_DEG --%THROTTLE MPH RPM RPM RPM

CHL_EGR_Frac_Cmd EGR_Fraction CHL_MCF_Cmd Charge_Flow EGR_Position VGT_Duty_Cycle Filtered_Turbo_Speed Boost_Pressure User_Selected_Throttle_Control

----LB/MIN LB/MIN %open %DutyCycle KRPM IN_HG ---

RPM MG/STROKE %THROTTLE CNTS MPH ------LB/MIN LB/MIN

EGR_ Position VGT_Duty_Cycle Boost_Pressure OFC_Fuel_Limit EGR_Valve_Delta_Press CSE_Xform_Angle CBR_FCLR_Off CBR_FCLR_On User_Selected_Throttle_Control

-------

RPM MG/STROKE MPH --1/SEC RPM/SEC FT*LB FT*LB

CHL_EGR_Frac_Cmd EGR_Fraction CHL_MCF_Cmd Charge_Flow EGR_ Position VGT_Duty_Cycle

----LB/MIN LB/MIN %open %DutyCycle

RPM MPH ---

Filtered_Gear_Ratio Effective_Gear_Ratio RSC_Sensor_Type

-------

88. Snap Throttle Response (HSG, Bobtail) Filtered_Engine_Speed Total_Fueling Fueling_Control_State_Value Final_Timing Final_Timing_State Commanded_Throttle Road_Speed HSG_Active_Breakpoint HSG_Reference_Speed HSG_Breakpoint_Speed

89. Throttle Control / Stability, Bobtail Filtered_Engine_Speed Total_Fueling Commanded_Throttle Sampled_Throttle_Raw Road_Speed Filtered_Gear_Ratio CHL_EGR_Frac_Cmd EGR_Fraction CHL_MCF_Cmd Charge_Flow

90. Idle In Gear, Bobtail Filtered_Engine_Speed Total_Fueling Road_Speed Filtered_Gear_Ratio LSG_Proportional_Gain Ndot_LSG TQM_Net_Engine_Torque_Rqst Ndot_Net_Torque_Cmd

91. Gear Ratio Validation Filtered_Engine_Speed Road_Speed User_Filtered_Gear_Ratio

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CM870 COMMON APPROACH TO CONTROL SYSTEM DIAGNOSTICS 92. Cruise Control Base Functionality Filtered_Engine_Speed Total_Fueling Fueling_Control_State_Value Adjusted_User_Fueling_State Cruise_Control_Reference_Speed Road_Speed System_Switch_Status Cruise_Command_Mode CHL_EGR_Frac_Cmd EGR_Fraction

RPM MG/STROKE ----MPH MPH ---------

CHL_MCF_Cmd Charge_Flow EGR_Position VGT_Duty_Cycle Filtered_Turbo_Speed Charge_Press Cruise_Max_Road_Speed_Trim Cruise_Max_Road_Speed Cruise_Top_Droop_Width Cruise_Bottom_Droop_Width

LB/MIN LB/MIN %open %DutyCycle KRPM IN_HG MPH MPH MPH MPH

RPM MG/STROKE ----%THROTTLE MPH MPH MPH MPH -----

CHL_MCF_Cmd Charge_Flow VGT_Duty_Cycle Filtered_Turbo_Speed Charge_Press Max_Road_Speed_Trim Max_Road_Speed RSG_Top_Droop_Width RSG_Bottom_Droop_Width Top_Gear_Ratio Gear_Down_Gear_Ratio Gear_Down_Active

LB/MIN LB/MIN %DutyCycle KRPM IN_HG MPH MPH MPH MPH -------

RPM MG/STROKE ----MPH MPH MPH ---

System_Switch_Status Cruise_Command_Mode Cruise_Control_Status Filtered_Gear_Ratio Max_Road_Speed Cruise_Max_Road_Speed GD_Gear_Down_High_Load_Speed Cruise_Control_AR_Clutch_Time_Limit

--------MPH MPH MPH MPH

RPM MG/STROKE --MPH MPH FT*LB FT*LB FT*LB FT*LB

EB_Charge_Flow_Command CHL_MCF_Cmd Charge_Flow EB_Driver_Level EB_Active_Driver_Fraction EB_Allowed_State EB_Brakes_Are_On EB_Cruise_Braking_Inhibit VGT_Duty_Cycle

LB/MIN LB/MIN LB/MIN % --------%DutyCycle

RPM MG/STROKE ----MPH MPH MPH

Road_Speed System_Switch_Status Cruise_Command_Mode Cruise_Control_Status Ndot_Demand Ndot_Cruise_Control

MPH ------RPM/SEC RPM/SEC

93. Road Speed Governor Base Functionality Filtered_Engine_Speed Total_Fueling Fueling_Control_State_Value Adjusted_User_Fueling_State Commanded_Throttle RSG_Error RSG_Droop RSG_Reference_Speed Road_Speed CHL_EGR_Frac_Cmd EGR_Fraction

94. Cruise Control Auto Resume Filtered_Engine_Speed Total_Fueling Fueling_Control_State_Value Adjusted_User_Fueling_State Cruise_Control_Reference_Speed CC_Error Road_Speed Cruise_Control_AR_Flag

95. Cruise Control with Engine Brakes Filtered_Engine_Speed FSS_Total_Fueling Fueling_Control_State_Value Cruise_Control_Reference_Speed Road_Speed TQM_Final_Torque_Cmd Net_Engine_Torque Cruise_Control_EB_Torque EB_Adj_Torque_Cmd

96. Cruise Control Overshoot Filtered_Engine_Speed Total_Fueling Fueling_Control_State_Value Adjusted_User_Fueling_State CC_Error Cruise_Droop Cruise_Control_Reference_Speed

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CM870 COMMON APPROACH TO CONTROL SYSTEM DIAGNOSTICS 97. Road Speed Governor Overshoot Filtered_Engine_Speed Total_Fueling Fueling_Control_State_Value Adjusted_User_Fueling_State Commanded_Throttle

RPM MG/STROKE ----%THROTTLE

RSG_Error RSG_Droop Road_Speed RSG_Reference_Speed Ndot_Demand Ndot_RSG

MPH MPH MPH MPH RPM/SEC RPM/SEC

RPM MG/STROKE ---------

Reverse_ESP_Transition_Flag Reverse_ESP_Min_Gear_Ratio Road_Speed User_Filtered_Gear_Ratio Commanded_Throttle System_Switch_Status

----MPH --%THROTTLE ---

RPM MG/STROKE --RPM --MPH FT*LB FT*LB

HSG_Proportional_Gain Ndot_HSG Ndot_Net_Torque_Cmd TQM_Final_Torque_Cmd CHL_EGR_Frac_Cmd EGR_Fraction CHL_MCF_Cmd Charge_Flow

%FUEL RPM/SEC FT*LB FT*LB ----LB/MIN LB/MIN

RPM MG/STROKE %THROTTLE CNTS MPH ------LB/MIN LB/MIN LB/MIN

EGR_Position VGT_Duty_Cycle Charge_Press OFC_Fuel_Limit EGR_Valve_Delta_Press CSE_Xform_Angle CHL_Delta_P_Drt_Active CHL_COT_Drt_Active CHL_Turbo_Speed_Drt_Active User_Selected_Throttle_Control

%open %DutyCycle IN_HG MG/STROKE IN_HG DEG ---------

RPM MG/STROKE MPH --1/SEC RPM/SEC RPM/SEC MSEC MSEC

Fuel_Rail_Pressure Ndot_Net_Torque_Cmd TQM_Net_Engine_Torque_Rqst CHL_EGR_Frac_Cmd EGR_Fraction CHL_MCF_Cmd Charge_Flow EGR_Position VGT_Duty_Cycle

PSI_A FT*LB FT*LB ----LB/MIN LB/MIN %open %DutyCycle

98. Reverse ESP / Take-Off ESP Filtered_Engine_Speed Total_Fueling Fueling_Control_State_Value ESP_Tau ESP_Tau_State Reverse_ESP_Tau

99. High Idle Stability, Loaded Trailer Filtered_Engine_Speed Total_Fueling Fueling_Control_State_Value HSG_Reference_Speed HSG_Ref_Speed_State Road_Speed Ndot_Feedforward_Torque Ndot_Integral_Torque

100.

Throttle Control / Stability, Loaded Trailer Filtered_Engine_Speed Total_Fueling Commanded_Throttle Sampled_Throttle_Raw Road_Speed Filtered_Gear_Ratio CHL_EGR_Frac_Cmd EGR_Fraction CHL_MCF_Cmd CHS_MCF_Cmd Charge_Flow

101.

Idle In Gear, Loaded Trailer Filtered_Engine_Speed Total_Fueling Road_Speed Filtered_Gear_Ratio LSG_Proportional_Gain Ndot_LSG Ndot_Demand FTT_ti_BaseFlTTL_v FTT_ti_BaseTmTTL_v

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CM870 COMMON APPROACH TO CONTROL SYSTEM DIAGNOSTICS 102.

Sensor Characterization Filtered_Engine_Speed Coolant_Temperature_Raw Oil_Temperature_Raw Oil_Pressure_Absolute_Raw Air_Pressure_Sensor_Raw Compressor_Inlet_Temperature_Raw Boost_Pressure_Absolute_Raw Intake_Manifold_Temperature_Sensor_Raw Exhaust_Pressure_Sensor_Raw Battery_Voltage_Raw Sampled_Throttle_Raw EGR_Delta_P_Sensor_Raw EGR_Position_Before_Autozero_Raw EGR_Orifice_Temperature_Raw Raw_Turbo_Speed Fuel_Temperature_Raw Fuel_Rail_Pressure_Raw Coolant_Level_Raw

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RPM CNTS CNTS CNTS CNTS CNTS CNTS CNTS CNTS CNTS CNTS CNTS CNTS CNTS CNTS CNTS CNTS CNTS

Coolant_Tmptr Oil_Tmptr Oil_Press_Absolute Ambient_Air_Press Compressor_Inlet_Tmptr Charge_Press Charge_Tmptr Exhaust_Press Battery_Volt Sampled_Throttle EGR_Delta_Press EGR_Position EGR_Orifice_Tmptr Filtered_Turbo_Speed Fuel_Tmptr Fuel_Rail_Press Coolant_Level

Created by Brian J. Ouellette

DEG_F DEG_F PSI_A IN_HG DEG_F IN_HG IN_HG IN_HG VOLT % IN_HG %open DEG_F KRPM DEG_F PSI VOLT

Page 40

CM870 COMMON APPROACH TO CONTROL SYSTEM DIAGNOSTICS 103.

Surge Characterization

Air Handling Controller Induced Surge: Filtered_Engine_Speed FSS_Total_Fueling Fueling_Control_State_Value Filtered_Turbo_Speed Compressor_Inlet_Tmptr Compressor_Outlet_Tmptr Charge_Tmptr Exhaust_Tmptr Charge_Press Compressor_Inlet_Press Compressor_Inlet_Density

RPM MG/STROKE --KRPM DEG_F DEG_F DEG_F DEG_F IN_HG IN_HG LBM/FT3

CHS_MCF_Cmd CHL_MCF_Cmd Charge_Flow CBL_EGR_Frac_Cmd CHL_EGR_Frac_Cmd EGR_Fraction VGT_Duty_Cycle TGC_VT_Cmd EGR_Position EAC_EGR_Valve_Cmd Fresh_Air_Flow

LB/MIN LB/MIN LB/MIN ------%DutyCycle % %open %open LB/MIN

Quasi-Steady State Compressor Surge: Filtered_Engine_Speed FSS_Total_Fueling Fueling_Control_State_Value Filtered_Turbo_Speed Compressor_Inlet_Tmptr Charge_Tmptr CHL_EGR_Frac_Cmd EGR_Fraction

RPM MG/STROKE --KRPM DEG_F DEG_F -----

Compressor_Outlet_Tmptr Compressor_Inlet_Density CBR_Chi_Value CBP_Air_Fuel_Ratio CHP_Volumetric_Efficiency EGR_Position VGT_Duty_Cycle

DEG_F LBM/FT3 ------%open %DutyCycle

Transient Compressor Surge: Filtered_Engine_Speed FSS_Total_Fueling Fueling_Control_State_Value Charge_Press Charge_Tmptr Compressor_Inlet_Tmptr Compressor_Inlet_Density Compressor_Outlet_Tmptr

RPM MG/STROKE --IN_HG DEG_F DEG_F LBM/FT3 DEG_F

Boost_Pressure Filtered_Turbo_Speed Altitude Charge_Flow CHS_MCF_Cmd CHL_MCF_Cmd EGR_Position VGT_Duty_Cycle

IN_HG KRPM FT LB/MIN LB/MIN LB/MIN %open %DutyCycle

Engine Surge: Filtered_Engine_Speed FSS_Total_Fueling Fueling_Control_State_Value TQM_Final_Torque_Cmd Ndot_Net_Torque_Cmd No_Load_Torque Ndot_Demand Ndot_Actual

RPM MG/STROKE --FT*LB FT*LB FT*LB RPM/SEC RPM/SEC

Effective_Gear_Ratio Ndot_LSG Ndot_HSG Ndot_Four_D Ndot_Cruise_Control Ndot_RSG Ndot_ASG Ndot_PTO

--RPM/SEC RPM/SEC RPM/SEC RPM/SEC RPM/SEC RPM/SEC RPM/SEC

RPM MG/STROKE --MG/STROKE MG/STROKE MG/STROKE MG/STROKE

CBR_FCLR_On CBR_FCLR_Off CBR_FCLR_Ref CBR_EGR_Disabled EGR_Position

--------%open

104.

OFC and Texh Fuel Limits Filtered_Engine_Speed FSS_Total_Fueling Fueling_Control_State_Value OFC_Fuel_Limit Texh_Fuel_Limit CBR_Fuel_Ref CBR_Gross_Fuel

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CM870 COMMON APPROACH TO CONTROL SYSTEM DIAGNOSTICS 105.

Dyno Performance Monitor Filtered_Engine_Speed FSS_Total_Fueling Net_Engine_Torque No_Load_Torque Fueling_Control_State_Value Final_Timing EGR_Position VGT_Duty_Cycle

RPM MG/STROKE FT*LB FT*LB --CRANK_DEG %open %DutyCycle

Commanded_Throttle Alpha CBR_Chi_Value Coolant_Tmptr Compressor_Inlet_Tmptr Charge_Tmptr Charge_Press Exhaust_Press

%THROTTLE ----DEG_F DEG_F DEG_F IN_HG IN_HG

Filtered_Turbo_Speed EGR_Fraction CHL_EGR_Frac_Cmd Charge_Flow CHL_MCF_Cmd EGR_Valve_Delta_Press EGR_Delta_Press EGR_Orifice_Tmptr

KRPM ----LB/MIN LB/MIN IN_HG IN_HG DEG_F

Compressor_Outlet_Tmptr Compressor_Inlet_Density Exhaust_Tmptr Ambient_Air_Press Ambient_Air_Tmptr Fuel_Rail_Press EMM_AECD_State EMM_Protection_State

DEG_F LBM/FT3 DEG_F IN_HG DEG_F PSI -----

Fresh_Air_Flow CBO_bsNOx System_Switch_Status System_Switch_Status_2

LB/MIN G/HP*HR HEX HEX

Fuel_Tmptr ESP_Tau Oil_Press Oil_Tmptr

DEG_F --PSI DEG_F

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CM870 COMMON APPROACH TO CONTROL SYSTEM DIAGNOSTICS Application Features: 106.

NDOT Governor Filtered_Engine_Speed Ndot_Net_Torque_Cmd Ndot_Net_Torque_Cmd_State Ndot_Integral_Torque Ndot_Proportional_Torque Ndot_Feedforward_Torque Ndot_Excess_Machine_Torque Ndot_Excess_Torque_Adj No_Load_Torque Net_Machine_Torque

107.

Ndot_Integral_Gain Ndot_Proportional_Gain Ndot_Feedforward_Gain

-------

RPM MG/STROKE --%THROTTLE MPH --RPM ---

Ndot_User_Command Ndot_ASG Ndot_Demand Ndot_Error Net_Engine_Torque Ndot_Net_Torque_Cmd Ndot_Net_Torque_Cmd_State Ndot_Integral_Torque

RPM/SEC RPM/SEC RPM/SEC RPM/SEC FT*LB FT*LB --FT*LB

RPM MG/STROKE --FT*LB FT*LB --FT*LB

HSG_Reference_Speed Ndot_HSG Ndot_Demand Ndot_Error Commanded_Throttle Road_Speed Effective_Gear_Ratio

RPM RPM/SEC RPM/SEC RPM/SEC %THROTTLE MPH ---

RPM MG/STROKE --FT*LB FT*LB --FT*LB

LSG_Reference_Speed Ndot_LSG Ndot_Demand Ndot_Error Commanded_Throttle Road_Speed Effective_Gear_Ratio

RPM RPM/SEC RPM/SEC RPM/SEC %THROTTLE MPH ---

RPM MG/STROKE --FT*LB FT*LB --%THROTTLE FT*LB

Torque_Derived_Ndot Ndot_Four_D Ndot_Demand Ndot_Error Four_D_Torque Alpha Road_Speed Effective_Gear_Ratio

--RPM/SEC RPM/SEC RPM/SEC FT*LB --MPH ---

Low Idle Governor (LSG) Filtered_Engine_Speed Total_Fueling Fueling_Control_State Net_Engine_Torque Ndot_Net_Torque_Cmd Ndot_Net_Torque_Cmd_State Ndot_Integral_Torque

110.

%THROTTLE MPH --RPM/SEC RPM/SEC RPM/SEC ---

High Idle Governor (HSG) Filtered_Engine_Speed Total_Fueling Fueling_Control_State Net_Engine_Torque Ndot_Net_Torque_Cmd Ndot_Net_Torque_Cmd_State Ndot_Integral_Torque

109.

Commanded_Throttle Road_Speed Effective_Gear_Ratio Ndot_Demand Ndot_Actual Ndot_Error Torque_Derived_Ndot

All Speed Governor (ASG) Filtered_Engine_Speed Total_Fueling Fueling_Control_State Commanded_Throttle Road_Speed Effective_Gear_Ratio ASG_Reference_Speed Torque_Derived_Ndot

108.

RPM FT*LB --FT*LB FT*LB FT*LB FT*LB FT*LB FT*LB FT*LB

Throttle Governor (Min/Max) Filtered_Engine_Speed Total_Fueling Fueling_Control_State Net_Engine_Torque Ndot_Net_Torque_Cmd Ndot_Net_Torque_Cmd_State Commanded_Throttle Ndot_Integral_Torque

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CM870 COMMON APPROACH TO CONTROL SYSTEM DIAGNOSTICS 111.

Power Take-Off Governor (PTO) Filtered_Engine_Speed Total_Fueling Fueling_Control_State Net_Engine_Torque Ndot_Net_Torque_Cmd Ndot_Net_Torque_Cmd_State Ndot_Integral_Torque PTO_Status

112.

RPM MG/STROKE --FT*LB FT*LB --FT*LB ---

Road_Speed Max_Road_Speed RSG_Reference_Speed Ndot_RSG Ndot_Demand Ndot_Error Commanded_Throttle System_Switch_Status

MPH MPH MPH RPM/SEC RPM/SEC RPM/SEC %THROTTLE HEX

RPM MG/STROKE --FT*LB FT*LB --FT*LB --%THROTTLE

Road_Speed Cruise_Max_Road_Speed Cruise_Control_Reference_Speed Ndot_Cruise_Control Ndot_Demand Ndot_Error Cruise_Control_Status System_Switch_Status

MPH MPH MPH RPM/SEC RPM/SEC RPM/SEC -----

RPM MG/STROKE --CRANK_DEG ------MG/STROKE CRANK_DEG

CBO_SOI_Ref SOI_Timing_Advance Misfire_SOI ANC_SOI CBL_SOI_Cmd EB_Timing CBM_SOI CBA_SOI_State T_CBL_SOI_Increment_Enable C_CBL_SOI_Increment

CRANK_DEG CRANK_DEG CRANK_DEG CRANK_DEG CRANK_DEG CRANK_DEG CRANK_DEG --ENABLE / DISABLE CRANK_DEG

CBO_SOI_Ref IMT_SOI_Advance Coolant_SOI_Advance Ambient_Pressure_SOI_Advance SOI_Timing_Advance SOI_State CBA_SOI_State

CRANK_DEG CRANK_DEG CRANK_DEG CRANK_DEG CRANK_DEG -----

SOI Timing Control Filtered_Engine_Speed Total_Fueling Fueling_Control_State Final_Timing Final_Timing_State CBR_Alpha CBR_Chi_Value CBR_Fuel_Ref CBR_SOI_Ref

115.

RPM RPM/SEC RPM/SEC RPM/SEC RPM/SEC HEX HEX

Cruise Control Governor (CC) Filtered_Engine_Speed Total_Fueling Fueling_Control_State Net_Engine_Torque Ndot_Net_Torque_Cmd Ndot_Net_Torque_Cmd_State Ndot_Integral_Torque Effective_Gear_Ratio Commanded_Throttle

114.

PTO_Reference_Speed Ndot_PTO Ndot_Demand Ndot_Error Ndot_User_Command System_Switch_Status System_Switch_Status_2

Road Speed Governor (RSG) Filtered_Engine_Speed Total_Fueling Fueling_Control_State Net_Engine_Torque Ndot_Net_Torque_Cmd Ndot_Net_Torque_Cmd_State Ndot_Integral_Torque Effective_Gear_Ratio

113.

RPM MG/STROKE --FT*LB FT*LB --FT*LB ---

SOI Timing Control – SOI Advance Filtered_Engine_Speed Total_Fueling Fueling_Control_State Final_Timing Final_Timing_State Charge_Tmptr Coolant_Tmptr Ambient_Air_Press

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RPM MG/STROKE --CRANK_DEG --DEG_F DEG_F IN_HG

Created by Brian J. Ouellette

Page 44

CM870 COMMON APPROACH TO CONTROL SYSTEM DIAGNOSTICS 116.

Engine Start-Up / Cranking Filtered_Engine_Speed Total_Fueling Fueling_Control_State TQM_Final_Torque_Cmd No_Load_Torque Coolant_Tmptr Ambient_Air_Tmptr Charge_Tmptr

117.

RPM MG/STROKE --FT*LB LB/MIN LB/MIN IN_HG IN_HG ---------

EB_Cruise_Engine_Brake_Active EB_CC_Brake_Torque_Only Cruise_Control_EB_Torque EB_Switch_Torque EB_Override_Torque EB_Jcomm_Non_Override_Torque EB_Torque_Command EB_Charge_Flow_Command

----FT*LB FT*LB FT*LB FT*LB FT*LB LB/MIN

Engine_Brake_Driver_1 Engine_Brake_Driver_2 Engine_Brake_Driver_3

-------

RPM --MG/STROKE FT*LB --DEG_F DEG_F ------% ---

Fan_Torque Fan_Clutch_1_PWM_Duty_Cycle Fan_Clutch_1_PWM_Period Fan_Air_Conditioner_Request Fan_Coolant_Temp_Request Fan_Datalink_Request Fan_Engine_Brake_Request Fan_Intake_Manifold_Temp_Request Fan_Manual_Input_Request Fan_Tool_Request Manual_Fan_Level Fan_Clutch_Logic

FT*LB % USEC % % % % % % % % ---

RPM MG/STROKE --FT*LB MPH MG/STROKE --LB/HR LB/HR LB/HR

Alpha ESP_Tau Alpha_State

-------

Ambient_Air_Press Alpha_AFC_Timer Alpha_LSG_Timer Cruise_Control_Status EPF_Torque_Limit_Status LSG_Adjusted_Reference_Speed

IN_HG SEC SEC ----RPM

RPM MG/STROKE --FT*LB --MPH

Ndot_Demand Ndot_Four_D Ndot_ASG Ndot_ANC Ndot_HSG Ndot_Error

RPM/SEC RPM/SEC RPM/SEC RPM/SEC RPM/SEC RPM/SEC

Alpha Determination Filtered_Engine_Speed Total_Fueling Fueling_Control_State TQM_Final_Torque_Cmd Road_Speed OFC_Fuel_Limit OFC_EGR_Disable Filtered_Fuel_Delivery_Rate Fuel_Delivery_Rate Alpha_Fuel_Rate

120.

----RPM MG/STROKE MG/STROKE CRANK_DEG SEC RPM SEC

Engine Fan Control Filtered_Engine_Speed Engine_State Total_Fueling TQM_Final_Torque_Cmd Fueling_Control_State Coolant_Tmptr Intake_Manifold_Temperature Air_Conditioner_Pressure_Switch EB_Driver_Level Manual_Fan_Input Fan_Request Fan_Drive_State

119.

EPS_Main_Sync_State EPS_Backup_Sync_State Crank_Exit_Speed Crank_Fuel Crank_Exit_Fuel_Adjustment Crank_Advance Crank_Exit_Timer Crank_Reentry_Speed Crank_Jumpstart_Timer

Engine Brake Manager Filtered_Engine_Speed Total_Fueling Fueling_Control_State TQM_Final_Torque_Cmd Charge_Flow CHL_MCF_Cmd Exhaust_Press Charge_Press E_Brake_Status Engine_Brake_Inhibit EB_Allowed_State EB_Immediate_Brake

118.

RPM MG/STROKE --FT*LB FT*LB DEG_F DEG_F DEG_F

Noise Control – Speed Derates Filtered_Engine_Speed Total_Fueling Fueling_Control_State TQM_Final_Torque_Cmd Effective_Gear_Ratio Road_Speed

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CM870 COMMON APPROACH TO CONTROL SYSTEM DIAGNOSTICS 121.

Smart Torque (ST Rating) Filtered_Engine_Speed Total_Fueling Fueling_Control_State TQM_Final_Torque_Cmd Filtered_Gear_Ratio Coolant_Tmptr Charge_Tmptr Ndot_Integral_Torque Net_Machine_Torque Throttle_100_Torque ESP_Steep_Grade_Transition_Flag Reverse_ESP_Transition_Flag Brake_Switch

122.

RPM MG/STROKE --FT*LB --DEG_F DEG_F FT*LB FT*LB FT*LB -------

ESP_Tau ESP_Tau_State Smart_Torque_Gear_Ratio ESP_Smart_Torque_Enable Four_D_Torque ESP_Filtered_Engine_Decel_Rate Steady_State_Torque_Min Steady_State_Torque_Max Transient_Torque_Min Transient_Torque_Max Torque_Interp_Factor Road_Speed Commanded_Throttle

------ENABLE/DISABLE FT*LB RPM/SEC FT*LB FT*LB FT*LB FT*LB --MPH %THROTTLE

RPM MG/STROKE --FT*LB RPM --RPM RPM

Filtered_Gear_Ratio Gear_Down_Gear_Ratio SM_Engine_Torque SM_Torque_Threshold SM_Downshifft_Active SM_Reference_Speed SM_Ref_Speed_Adjust SM_Ref_Mode

----FT*LB FT*LB --RPM RPM ---

Vehicle Trims: T_Shift_Manager_Enable T_SM_High_RPM_Breakpoint T_SM_Low_RPM_Breakpoint

HEX RPM RPM

RSC_Sensor_Type VSS_Transmission

-----

Commanded_Throttle Road_Speed Top_Gear_Ratio Rear_Axle_Ratio Jcomm_Progressive_Shift_Disable Out_Of_Gear PTO_Status VSS_Signal_Lost_Error

%THROTTLE MPH -------------

Net_Machine_Torque Throttle_100_Torque SM_Flag SM_Downshift_Active SM_High_Load SM_Low_Load SM_Save_Last_Ref_Speed SM_Target_Speed

FT*LB FT*LB --------RPM RPM

SM_Engine_Torque SM_Torque_Accel MME_Torque_Aero MME_Torque_Rolling MME_Torque_Grade MME_Torque_Transmission MME_Torque_Axle SM_Torque_Threshold

FT*LB FT*LB FT*LB FT*LB FT*LB FT*LB FT*LB FT*LB

SM_Low_Load SM_High_Load SM_Downshift_Active SM_Flag

---------

Load Based Speed Controls (LBSC)

[SM] Shift Manager: Filtered_Engine_Speed FSS_Total_Fueling Fueling_Control_State_Value TQM_Final_Torque_Cmd HSG_Active_Isochronous_Speed HSG_Active_Isochronous_Speed_State HSG_Active_Breakpoint HSG_Reference_Speed

[SM] Determine Shift Manager Torque Thresholds: Filtered_Engine_Speed RPM Net_Machine_Torque FT*LB MME_Vehicle_Mass LBM MME_Tire_Radius FT Filtered_Gear_Ratio --Rear_Axle_Ratio --Fan_Torque FT*LB Road_Speed MPH [SM] Determine Shift Manager Status: Filtered_Engine_Speed Filtered_Gear_Ratio Out_Of_Gear SM_In_Gear_Gear_Ratio SM_Engine_Torque SM_Torque_Threshold

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RPM ------FT*LB FT*LB

Created by Brian J. Ouellette

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CM870 COMMON APPROACH TO CONTROL SYSTEM DIAGNOSTICS [MME] Machine Mass Estimator: Filtered_Engine_Speed FSS_Total_Fueling Fueling_Control_State_Value Net_Machine_Torque Filtered_Gear_Ratio Road_Speed MME_Machine_Torque MME_Vehicle_Mass

RPM MG/STROKE --FT*LB --MPH FT*LB LBM

MME_Torque_Threshold MME_Torque_Accel MME_Torque_Aero MME_Torque_Axle MME_Torque_Grade MME_Torque_Rolling MME_Torque_Transmission

FT*LB FT*LB FT*LB FT*LB FT*LB FT*LB FT*LB

[MME] Estimated Torque For Acceleration: Filtered_Engine_Speed Road_Speed MME_Tire_Radius Filtered_Gear_Ratio Rear_Axle_Ratio MME_Vehicle_Mass Net_Machine_Torque MME_Machine_Torque

RPM MPH FT ----LBM FT*LB FT*LB

MME_Torque_Aero MME_Torque_Axle MME_Torque_Rolling MME_Torque_Transmission MME_Machine_Torque_At_Wheels MME_Excess_Machine_Torque MME_Torque_Threshold MME_Min_Torque_Timer

FT*LB FT*LB FT*LB FT*LB FT*LB FT*LB FT*LB SEC

[MME] Vehicle Mass Estimation: Filtered_Engine_Speed Filtered_Gear_Ratio Rear_Axle_Ratio MME_Tire_Radius Road_Speed Net_Machine_Torque MME_Excess_Machine_Torque

RPM ----FT MPH FT*LB FT*LB

MME_Engine_Inertia_At_Wheels MME_Estimated_GCVW MME_Average_GCVW MME_Adjusted_Avg_GCVW MME_Vehicle_Acceleration MME_Vehicle_Mass T_MME_Vehicle_Weight

LBF*FT*SEC^2 LBM LBM LBM FT/SEC^2 LBM LBM

[MME] Optimal Torque Range: Filtered_Engine_Speed Filtered_Gear_Ratio Rear_Axle_Ratio Out_of_Gear MME_Tire_Radius MME_Vehicle_Mass MME_Vehicle_Acceleration Fan_Torque Net_Machine_Torque

RPM ------FT LBM FT/SEC^2 FT*LB FT*LB

MME_Torque_Aero MME_Torque_Axle MME_Torque_Rolling MME_Torque_Transmission MME_Torque_Grade MME_Torque_Accel MME_Max_Torque_Threshold C_MME_Min_Torque_Threshold C_MME_Min_Transient_Torque_Thd

FT*LB FT*LB FT*LB FT*LB FT*LB FT*LB FT*LB FT*LB FT*LB

MME_OOG_Road_Speed_1 MME_OOG_Road_Speed_2 MME_OOG_Road_Speed_Delta MME_Start_Data_Processing MME_Data_Processing_Complete MME_Major_Chage_Confirmed MME_Mass_Increase_Confirmed MME_Total_Samples MME_Average_GCVW MME_Major_Change_Flag MME_Major_Mass_Increase_Flag

MPH MPH MPH ----------LBM -----

[MME] Monitor Vehicle Data For Changes In Engine Conditions: Filtered_Engine_Speed RPM Net_Machine_Torque FT*LB MME_Vehicle_Mass LBM MME_Estimated_GCVW LBM Filtered_Gear_Ratio --Out_of_Gear --MME_Collect_Data --MME_OOG_Road_Speed_Delta MPH MME_OOG_Time SEC MME_Road_Grade_Detected --Road_Speed MPH

Cummins Engine Co., Inc. Confidential

Created by Brian J. Ouellette

Page 47

CM870 COMMON APPROACH TO CONTROL SYSTEM DIAGNOSTICS 123.

CORS Centinel Filtered_Engine_Speed Total_Fueling Fueling_Control_State TQM_Final_Torque_Cmd Road_Speed Engine_State Fuel_Delivery_Rate_Gallons CORS_Remote_Oil_Level_Switch Oil_Press Oil_Tmptr Oil_Temperature_High_Error Oil_Temperature_Low_Error

RPM MG/STROKE --FT*LB MPH --GAL/SEC --PSI DEG_F -----

CORS_Fuel_Used CORS_Makeup_Fuel_Used CORS_Missed_Pulse_Count CORS_Burn_Valve_Command CORS_Remote_Oil_Level_Low CORS_Remote_Oil_Counter CORS_Burn_Valve_Driver_PWM_High_Control_Error CORS_Burn_Valve_Driver_PWM_Low_Control_Error OLM_Very_Low_Oil_Level_Error OLM_Very_Low_Oil_Sensor_Error Oil_Pressure_High_Postprocessed_Error Oil_Pressure_Low_Error

GAL GAL ------SEC -------------

RPM MG/STROKE --FT*LB FT*LB FT*LB ----MPH --FT*LB ---

VSS_Transmission RSC_Sensor_Type Road_Speed Commanded_Throttle Jcomm_Engine_Control_Mode Jcomm_Retarder_Control_Mode Jcomm_Reference_RPM Jcomm_Engine_Torque_Command Jcomm_Derate_Torque Jcomm_Engine_Brake_Limit J1939_Gear_Ratio Jcomm_Engine_Control_Device_Indicator E_Brake_Jcomm_Device_Indicator

----MPH %THROTTLE ----RPM % FT*LB FT*LB -------

Powertrain Control References: Filtered_Engine_Speed Total_Fueling Fueling_Control_State TQM_Final_Torque_Cmd No_Load_Torque Fan_Torque Road_Speed Commanded_Throttle

RPM MG/STROKE --FT*LB FT*LB FT*LB MPH %THROTTLE

Jcomm_Engine_Control_Mode Jcomm_Engine_Torque_Command Reference_Engine_Torque Jcomm_Reference_RPM Powertrain_Reference_RPM Powertrain_Commanded_Torque Powertrain_State Torque_Derived_Ndot_Powertrain

--% N*M RPM RPM FT*LB -----

Powertrain Control Governor Gains: Filtered_Engine_Speed Total_Fueling Fueling_Control_State TQM_Final_Torque_Cmd Jcomm_Speed_Governor_Mode Effective_Gear_Ratio E_Brake_Status Road_Speed

RPM MG/STROKE --FT*LB ------MPH

Commanded_Throttle Powertrain_Reference_RPM Powertrain_State Powertrain_Proportional_Gain Powertrain_Base_Proportional_Gain Powertrain_Gain_Multiplier Powertrain_Gain_Factor

%THROTTLE RPM --1/SEC 1/SEC --1/SEC

Powertrain Control Ndot Governor: Filtered_Engine_Speed Total_Fueling Fueling_Control_State TQM_Final_Torque_Cmd Jcomm_Derate_Torque Ndot_Feedforward_Gain Ndot_Integral_Torque Road_Speed Commanded_Throttle

RPM MG/STROKE --FT*LB FT*LB --FT*LB MPH %THROTTLE

Powertrain_Commanded_Torque Powertrain_Reference_RPM Powertrain_State Powertrain_Commanded_Torque_Error Powertrain_Limiting_Torque_Error Powertrain_Error Ndot_Powertrain Ndot_Demand Ndot_Error Ndot_Powertrain_Torque_Limit

FT*LB RPM --FT*LB FT*LB RPM RPM/SEC RPM/SEC RPM/SEC RPM/SEC

124.

Automated Transmissions Filtered_Engine_Speed FSS_Total_Fueling Fueling_Control_State_Value Net_Engine_Torque No_Load_Torque TQM_Final_Torque_Cmd Jcomm_Speed_Governor_Mode Effective_Gear_Ratio Road_Speed E_Brake_Status Fan_Torque E_Brake_Command_Source

125.

Powertrain Controls

Cummins Engine Co., Inc. Confidential

Created by Brian J. Ouellette

Page 48

CM870 COMMON APPROACH TO CONTROL SYSTEM DIAGNOSTICS 126.

Powertrain Protection Filtered_Engine_Speed Total_Fueling Fueling_Control_State TQM_Final_Torque_Cmd Net_Machine_Torque TQM_Machine_Torque_Limit TQM_Machine_Torque_Limit_State Road_Speed

127.

RPM MG/STROKE --FT*LB FT*LB FT*LB --%THROTTLE --MPH

Ndot_Limp_Home Ndot_Demand Ndot_Error Limp_Home_Filtered_Engine_Speed Limp_Home_Max_Net_Torque Limp_Home_Net_Torque Limp_Home_Net_Torque_Limit Limp_Home_Torque_Error

RPM/SEC RPM/SEC RPM/SEC RPM FT*LB FT*LB FT*LB FT*LB

J1939_Mux_APS_Data_Error J1939_Mux_APS_PGN_Timeout_Error

HEX HEX

RPM MG/STROKE --FT*LB FT*LB DEG_F ----MPH MPH

Out_Of_Gear_Desired_Torque Out_Of_Gear_Protection_State Out_Of_Gear_Torque Net_Machine_Torque

FT*LB --FT*LB FT*LB

Desired_User_Fueling_State VSS_Transmission

-----

GC_Filtered_Percent_Load GD_State

% ---

Max_Road_Speed Cruise_Max_Road_Speed GD_Low_Limit_Speed GD_High_Limit_Speed RSG_Desired_Reference_Speed RSG_Reference_Speed SR_Reference_Speed DR_Max_Offset

MPH MPH MPH MPH MPH MPH MPH MPH

Starter_Lockout_Driver Starter_Lockout_Driver_PWM_Duty_Cycle SL_Started Starter_Lockout_Request Starter_Inhibit

--% ----HEX

Gear Down Protection Filtered_Engine_Speed Total_Fueling Fueling_Control_State TQM_Final_Torque_Cmd Road_Speed Cruise_Control_Reference_Speed Cruise_Control_Status SR_Reference_Speed DR_RSG_CC_Delta Filtered_Gear_Ratio Gear_Down_Active Rear_Axle_Ratio_Switch Percent_Load

130.

--FT*LB --%LOAD FT*LB MPH/SEC

Out Of Gear Protection Filtered_Engine_Speed Total_Fueling Fueling_Control_State TQM_Final_Torque_Cmd Coolant_Torque_Adjustment Coolant_Tmptr Filtered_Gear_Ratio Out_Of_Gear Road_Speed RSG_Desired_Reference_Speed

129.

PTP_Switched_Input PTP_Torque_Output PTP_Lugback_State PTP_P_Load PTP_TC_Limit Vehicle_Deceleration

Limp Home Mode Filtered_Engine_Speed Total_Fueling Fueling_Control_State TQM_Final_Torque_Cmd Net_Machine_Torque Ndot_Integral_Torque Ndot_Feedforward_Gain Commanded_Throttle Throttle_Status Road_Speed

128.

RPM MG/STROKE --FT*LB FT*LB FT*LB --MPH

RPM MG/STROKE --FT*LB MPH MPH --MPH MPH ------%

Starter Lockout Engine_State Filtered_Engine_Speed Keyswitch

Cummins Engine Co., Inc. Confidential

--RPM ---

Created by Brian J. Ouellette

Page 49

CM870 COMMON APPROACH TO CONTROL SYSTEM DIAGNOSTICS 131.

Remote Throttle Control Calculated_Commanded_Throttle Remote_Throttle Remote_Throttle_Raw Remote_Throttle_High_Error Remote_Throttle_Low_Error Remote_Throttle_Switch

132.

----RPM ------MG/STROKE

Ndot_Net_Torque_Cmd Net_Machine_Torque PTO_Reference_Speed PTO_Speed_Selected PTO_Remote_Throttle_Inhibit PTO_Remote_PTO_Inhibit PTO_Derate_Torque

FT*LB FT*LB RPM RPM ----FT*LB

RPM MG/STROKE FT*LB ----DEG_F DEG_F DEG_F %THROTTLE MPH

Brake_Switch Clutch_Switch VSS_Signal_Lost_ Error PTO_Status

---------

Idle_Shutdown_Override_Flag Idle_Shutdown_Reset_Flag Idle_Shutdown_Reset_From_Warning_Flag Idle_Shutdown_Reset_From_Override_Flag

HEX HEX HEX HEX

RPM MG/STROKE --IN_HG IN_HG KRPM --DEG_F ---

Turbine_Pressure_Ratio C_Turboconveyor_Pratio_Thd C_Turboconveyor_Turbo_Speed_Thd C_Turboconveyor_Enable_Time Turboconveyor_Is_Active EMO_Gen_Protect_AECD_State EMM_AECD_State EMM_Protection_State EGR_Valve_Is_Closed

----KRPM SEC -----------

Turboconveyor Filtered_Engine_Speed FSS_Total_Fueling Fueling_Control_State_Value Exhaust_Press Ambient_Air_Press Filtered_Turbo_Speed PTO_Status Exhaust_Tmptr CBR_Chi_Value

135.

%THROTTLE ------DEC HEX ---

Idle Shutdown Filtered_Engine_Speed Total_Fueling TQM_Final_Torque_Cmd Fueling_Control_State Engine_State OEM_Ambient_Air_Tmptr Ambient_Air_Tmptr Intake_Manifold_Temperature_Sensor Commanded_Throttle Road_Speed

134.

Alternate_Throttle Remote_Throttle_Diagnostics_Enable_Flag RT_High_Error RT_Low_Error Throttle_Selection J1939_Mux_APS_PGN_Timeout_Error J1939_Mux_Remote_Throttle_Data_Error

Remote PTO Control Remote_PTO_Switch Alternate_Throttle_Selection_State Filtered_Engine_Speed PTO_Status PTO_State Fueling_Control_State Total_Fueling

133.

%THROTTLE % CNTS -------

Ether Start Injection Filtered_Engine_Speed FSS_Total_Fueling Fueling_Control_State_Value Coolant_Tmptr EGR_Valve_Is_Closed Engine_State EPS_Status Battery_Volt

RPM MG/STROKE --DEG_F ------VOLT

Ether_Injection_Driver_PWM_Low_Control_Error Ether_Injection_Driver_PWM_High_Control_Error

-----

Cummins Engine Co., Inc. Confidential

Ether_Injection_Driver_PWM_Duty_Cycle Ether_Injection_Driver_PWM_Period Ether_Injection_Delay_Timer Ether_Injection_Cranking_Timer Ether_Injection_Preload_Timer Ether_Injection_Pulse_Off_Time Ether_Preload_Done_Flag Ether_Request_Flag Ether_Starting_Done_Flag Ether_Preload_Active_Flag Ether_Solenoid_Command

Created by Brian J. Ouellette

% USEC SEC SEC SEC SEC -----------

Page 50

CM870 COMMON APPROACH TO CONTROL SYSTEM DIAGNOSTICS Engineering Features: 136.

User Overrides USER OVERRIDE ENABLES: User_Override_Fueling_Enable T_CBR_Fuel_Ref_User_Override T_CBL_Fuel_User_Override T_OFC_Fuel_Limit_User_Override User_Override_Timing_Enable T_CBL_SOI_User_Override T_CBL_SOI_Increment_Enable User_Commanded_Torque_Enable Alpha_User_Override_Enable T_CBR_Alpha_User_Override T_CBR_Chi_User_Override T_CBR_Chi_Selective_Override T_CBL_EGR_Frac_User_Override T_CBL_MCF_User_Override T_CSE_Xform_User_Override T_EGA_Cmd_User_Override T_EGA_PWM_User_Override VGT_Duty_Cycle_Override_Enable

137.

OVERRIDES: Total_Fueling CBR_Fuel_Ref CBL_Fuel_Cmd OFC_Fuel_Limit Final_Timing CBL_SOI_Cmd CBL_SOI_Ref Ndot_Net_Torque_Cmd Alpha CBR_Alpha CBR_Chi_Value CBR_Chi_Value CBL_EGR_Frac_Cmd CBL_MCF_Cmd CSE_Xform_Angle EGA_Position_Cmd_Final EGA_PWM_Limited VGT_Duty_Cycle

RPM MG/STROKE --FT*LB FT*LB FT*LB FT*LB FT*LB MG/STROKE MG/STROKE

Output from Fuel System Controls (Feedback): FSI_q_totalFueling_v FSS_Total_Fueling CBP_Adj_Total_Fueling Charge_Flow CBP_Adj_Charge_Flow CBP_Combustion_Torque CBP_EB_Torque Net_Engine_Torque Net_Machine_Torque No_Load_Torque

MG/STROKE MG/STROKE MG/STROKE LB/MIN LB/MIN FT*LB FT*LB FT*LB FT*LB FT*LB

Ambient_Air_Press_Sensor_Tolerence Charge_Press_Sensor_Tolerence Exhaust_Press_Sensor_Tolerence Oil_Press_Sensor_Tolerence C_EGR_DP_IR_Startup_Pos_Thd C_EGR_DP_IR_Startup_Press_Thd Air_Pressure_Keyon_Error Charge_Pressure_Keyon_Error Exhaust_Pressure_Keyon_Error Oil_Pressure_Keyon_Error EGR_Delta_Press_Keyon_Error

IN_HG IN_HG IN_HG PSI_A %open IN_HG -----------

Keyon Pressure Check Diagnostics Keyswitch Air_Pressure_Sensor_Raw Boost_Pressure_Absolute_Raw Exhaust_Pressure_Sensor_Raw Oil_Pressure_Absolute_Raw Ambient_Air_Press Charge_Press Exhaust_Press Oil_Press EGR_Delta_Press C_EGR_DP_IR_Startup_Delay_Time

139.

MG/STROKE MG/STROKE MG/STROKE MG/STROKE CRANK_DEG CRANK_DEG CRANK_DEG FT*LB ----------LB/MIN DEG %open %DutyCycle %DutyCycle

Torque To Fuel Conversion Inputs to Fuel System Controls (Command): Filtered_Engine_Speed Total_Fueling Fueling_Control_State Ndot_Net_Torque_Cmd Ndot_Integral_Torque TQM_Final_Torque_Cmd TQM_Engine_Torque_Limit TQM_Machine_Torque_Limit CBR_Gross_Fuel CBR_Fuel_Ref

138.

USER OVERRIDE VALUES: User_Override_Fueling C_CBR_Fuel_Ref_Override_Value C_CBL_Fuel_Override_Value C_OFC_Fuel_Limit_Override_Value User_Override_Timing C_CBL_SOI_Override_Value C_CBL_SOI_Increment User_Commanded_Torque User_Override_Alpha C_CBR_Alpha_Override_Value C_CBR_Chi_Override_Value C_CBR_Chi_Override_Value C_CBL_EGR_Frac_Override_Value C_CBL_MCF_Override_Value C_CSE_Xform_Override_Value C_EGA_Cmd_Override_Value C_EGA_PWM_Override_Value VGT_Duty_Cycle_Override

--CNTS CNTS CNTS CNTS IN_HG IN_HG IN_HG PSI IN_HG SEC

General Engine Protection (EPF) Filtered_Engine_Speed Total_Fueling TQM_Final_Torque_Cmd Fueling_Control_State Throttle_100_Torque Engine_Protection_Derate_Torque EPF_Torque_Limit_Status EPF_Max_Torque_Limit_Index

Cummins Engine Co., Inc. Confidential

RPM MG/STROKE FT*LB --FT*LB FT*LB -----

Compressor_Outlet_Tmptr Coolant_Level Coolant_Tmptr Oil_Level_Sensor EGR_Orifice_Tmptr Exhaust_Metal_Tmptr Charge_Tmptr Oil_Press Oil_Tmptr

Created by Brian J. Ouellette

DEG_F VOLT DEG_F GAL DEG_F DEG_F DEG_F PSI DEG_F

Page 51

CM870 COMMON APPROACH TO CONTROL SYSTEM DIAGNOSTICS ENGINE PROTECTION PARAMETERS [EPF] Compressor Outlet Temperature Engine Protection: Compressor_Outlet_Tmptr DEG_F COT_Torque_Index --COT_Torque_Error --COT_RPM_Index --COT_RPM_Error --COT_Torque_Duration COT_RPM_Duration

[EPF] Coolant Level Engine Protection: Coolant_Level Coolant_Level_Torque_Index Coolant_Level_Torque_Error Coolant_Level_RPM_Index Coolant_Level_RPM_Error Coolant_Level_Torque_Duration Coolant_Level_RPM_Duration

SEC SEC

VOLT --------SEC SEC

[EPF] Coolant Temperature Engine Protection: Coolant_Temperature Coolant_Tmptr Coolant_Temperature_Torque_Index Coolant_Temperature_Torque_Error Coolant_Temperature_RPM_Index Coolant_Temperature_RPM_Error

DEG_F DEG_F ---------

Coolant_Temperature_Torque_Duration Coolant_Temperature_RPM_Duration

SEC SEC

[EPF] Coolant Temp2 Engine Protection: Coolant_Temperature Coolant_Tmptr Coolant_Temp2_Torque_Index Coolant_Temp2_Torque_Error Coolant_Temp2_RPM_Index Coolant_Temp2_RPM_Error Coolant_Temp2_Torque_Duration Coolant_Temp2_RPM_Duration

[EPF] EGR Orifice Temperature Engine Protection: EGR_Orifice_Tmptr EGR_Orifice_Tmptr_Torque_Index EGR_Orifice_Tmptr_Torque_Error EGR_Orifice_Tmptr_RPM_Index EGR_Orifice_Tmptr_RPM_Error EGR_Orifice_Tmptr_Torque_Duration EGR_Orifice_Tmptr_RPM_Duration

Cummins Engine Co., Inc. Confidential

DEG_F DEG_F --------SEC SEC

DEG_F --------SEC SEC

Engine Protection Limits: COT_RPM_Lower_Limit COT_RPM_Shutdown_Severity_Thres COT_Torque_Max_Threshold COT_Torque_Min_Threshold COT_Torque_Shutdown_Severity_Thres COT_Torque_Derate_Start_Duration COT_Torque_Shutdown_Duration_Thres COT_RPM_Derate_Start_Duration COT_RPM_Shutdown_Duration_Thres

DEG_F DEG_F DEG_F DEG_F DEG_F SEC SEC SEC SEC

Engine Protection Limits: Coolant_Level_RPM_Lower_Limit Coolant_Level_RPM_Shutdown_Severity_Thres Coolant_Level_Torque_Max_Threshold Coolant_Level_Torque_Min_Threshold Coolant_Level_Torque_Shutdown_Severity_Thres Coolant_Level_Torque_Derate_Start_Duration Coolant_Level_Torque_Shutdown_Duration_Thres Coolant_Level_RPM_Derate_Start_Duration Coolant_Level_RPM_Shutdown_Duration_Thres

VOLT VOLT VOLT VOLT VOLT SEC SEC SEC SEC

Engine Protection Limits: Coolant_Temperature_RPM_Lower_Limit Coolant_Temperature_RPM_Shutdown_Severity_Thres Coolant_Temperature_Torque_Max_Threshold Coolant_Temperature_Torque_Min_Threshold Coolant_Temperature_Torque_Shutdown_Severity_Thres Coolant_Temperature_Torque_Derate_Start_Duration Coolant_Temperature_Torque_Shutdown_Duration_Thres Coolant_Temperature_RPM_Derate_Start_Duration Coolant_Temperature_RPM_Shutdown_Duration_Thres

DEG_F DEG_F DEG_F DEG_F DEG_F SEC SEC SEC SEC

Engine Protection Limits: Coolant_Temp2_RPM_Lower_Limit Coolant_Temp2_RPM_Shutdown_Severity_Thres Coolant_Temp2_Torque_Max_Threshold Coolant_Temp2_Torque_Min_Threshold Coolant_Temp2_Torque_Shutdown_Severity_Thres Coolant_Temp2_Torque_Derate_Start_Duration Coolant_Temp2_Torque_Shutdown_Duration_Thres Coolant_Temp2_RPM_Derate_Start_Duration Coolant_Temp2_RPM_Shutdown_Duration_Thres

DEG_F DEG_F DEG_F DEG_F DEG_F SEC SEC SEC SEC

Engine Protection Limits: EGR_Orifice_Tmptr_Temperature_RPM_Lower_Limit EGR_Orifice_Tmptr_RPM_Shutdown_Severity_Thres EGR_Orifice_Tmptr_Torque_Max_Threshold EGR_Orifice_Tmptr_Torque_Min_Threshold EGR_Orifice_Tmptr_Torque_Shutdown_Severity_Thres EGR_Orifice_Tmptr_Torque_Derate_Start_Duration EGR_Orifice_Tmptr_Torque_Shutdown_Duration_Thres EGR_Orifice_Tmptr_RPM_Derate_Start_Duration EGR_Orifice_Tmptr_RPM_Shutdown_Duration_Thres

DEG_F DEG_F DEG_F DEG_F DEG_F SEC SEC SEC SEC

Created by Brian J. Ouellette

Page 52

CM870 COMMON APPROACH TO CONTROL SYSTEM DIAGNOSTICS [EPF] EGR Orifice Temp2 Engine Protection: EGR_Orifice_Tmptr EGR_Orifice_Temp2_Torque_Index EGR_Orifice_Temp2_Torque_Error EGR_Orifice_Temp2_RPM_Index EGR_Orifice_Temp2_RPM_Error

DEG_F ---------

EGR_Orifice_Temp2_Torque_Duration EGR_Orifice_Temp2_RPM_Duration

SEC SEC

[EPF] Exhaust Temperature Engine Protection: Exhaust_Tmptr Exhaust_Metal_Tmptr Exhaust_Metal_Tmptr_Torque_Index Exhaust_Metal_Tmptr_Torque_Error Exhaust_Metal_Tmptr_RPM_Index Exhaust_Metal_Tmptr_RPM_Error

DEG_F DEG_F ---------

Exhaust_Metal_Tmptr_Torque_Duration Exhaust_Metal_Tmptr_RPM_Duration

SEC SEC

[EPF] Intake Manifold Temperature Sensor Engine Protection: Intake_Manifold_Temperature_Sensor DEG_F Charge_Tmptr DEG_F IMT_Torque_Index --IMT_Torque_Error --IMT_RPM_Index --IMT_RPM_Error --IMT_Torque_Duration IMT_RPM_Duration

[EPF] Oil Pressure Engine Protection: Oil_Pressure Oil_Press Oil_Pressure_Torque_Index Oil_Pressure_Torque_Error Oil_Pressure_RPM_Index Oil_Pressure_RPM_Error

SEC SEC

PSI PSI ---------

Oil_Pressure_Torque_Duration Oil_Pressure_RPM_Duration

SEC SEC

[EPF] Oil Temperature Engine Protection: Oil_Temperature Oil_Tmptr Oil_Temperature_Torque_Index Oil_Temperature_Torque_Error Oil_Temperature_RPM_Index Oil_Temperature_RPM_Error

DEG_F DEG_F ---------

Oil_Temperature_Torque_Duration Oil_Temperature_RPM_Duration

Cummins Engine Co., Inc. Confidential

SEC SEC

Engine Protection Limits: EGR_Orifice_Temp2_RPM_Lower_Limit EGR_Orifice_Temp2_RPM_Shutdown_Severity_Thres EGR_Orifice_Temp2_Torque_Max_Threshold EGR_Orifice_Temp2_Torque_Min_Threshold EGR_Orifice_Temp2_Torque_Shutdown_Severity_Thres EGR_Orifice_Temp2_Torque_Derate_Start_Duration EGR_Orifice_Temp2_Torque_Shutdown_Duration_Thres EGR_Orifice_Temp2_RPM_Derate_Start_Duration EGR_Orifice_Temp2_RPM_Shutdown_Duration_Thres

DEG_F DEG_F DEG_F DEG_F DEG_F SEC SEC SEC SEC

Engine Protection Limits: Exhaust_Metal_Tmptr_RPM_Lower_Limit Exhaust_Metal_Tmptr_RPM_Shutdown_Severity_Thres Exhaust_Metal_Tmptr_Torque_Max_Threshold Exhaust_Metal_Tmptr_Torque_Min_Threshold Exhaust_Metal_Tmptr_Torque_Shutdown_Severity_Thres Exhaust_Metal_Tmptr_Torque_Derate_Start_Duration Exhaust_Metal_Tmptr_Torque_Shutdown_Duration_Thres Exhaust_Metal_Tmptr_RPM_Derate_Start_Duration Exhaust_Metal_Tmptr_RPM_Shutdown_Duration_Thres

DEG_F DEG_F DEG_F DEG_F DEG_F SEC SEC SEC SEC

Engine Protection Limits: IMT_RPM_Lower_Limit IMT_RPM_Shutdown_Severity_Thres IMT_Torque_Max_Threshold IMT_Torque_Min_Threshold IMT_Torque_Shutdown_Severity_Thres IMT_Torque_Derate_Start_Duration IMT_Torque_Shutdown_Duration_Thres IMT_RPM_Derate_Start_Duration IMT_RPM_Shutdown_Duration_Thres

DEG_F DEG_F DEG_F DEG_F DEG_F SEC SEC SEC SEC

Engine Protection Limits: Oil_Pressure_RPM_Lower_Limit Oil_Pressure_RPM_Shutdown_Severity_Thres Oil_Pressure_Torque_Max_Threshold Oil_Pressure_Torque_Min_Threshold Oil_Pressure_Torque_Shutdown_Severity_Thres Oil_Pressure_Torque_Derate_Start_Duration Oil_Pressure_Torque_Shutdown_Duration_Thres Oil_Pressure_RPM_Derate_Start_Duration Oil_Pressure_RPM_Shutdown_Duration_Thres

PSI PSI PSI PSI PSI SEC SEC SEC SEC

Engine Protection Limits: Oil_Temperature_RPM_Lower_Limit Oil_Temperature_RPM_Shutdown_Severity_Thres Oil_Temperature_Torque_Max_Threshold Oil_Temperature_Torque_Min_Threshold Oil_Temperature_Torque_Shutdown_Severity_Thres Oil_Temperature_Torque_Derate_Start_Duration Oil_Temperature_Torque_Shutdown_Duration_Thres Oil_Temperature_RPM_Derate_Start_Duration Oil_Temperature_RPM_Shutdown_Duration_Thres

DEG_F DEG_F DEG_F DEG_F DEG_F SEC SEC SEC SEC

Created by Brian J. Ouellette

Page 53

CM870 COMMON APPROACH TO CONTROL SYSTEM DIAGNOSTICS 140.

In-Range Diagnostics

Charge Pressure In-Range Diagnostics: Filtered_Engine_Speed FSS_Total_Fueling Fueling_Control_State_Value Charge_Press Charge_Press_Sensor Charge_Press_Est Charge_Press_Status Charge_Press_Estat Charge_Press_Est_Offset

Turbo Speed In-Range Diagnostics: Filtered_Engine_Speed FSS_Total_Fueling Fueling_Control_State_Value Filtered_Turbo_Speed Turbo_Speed_Sensor Turbo_Speed_Est Turbo_Speed_Status Turbo_Speed_Estat Turbo_Speed_Comparison_Value

EGR Delta P In-Range Rationality Diagnostics: Filtered_Engine_Speed Net_Engine_Torque EGR_Position Engine_Delta_Press EGR_Delta_Press_AP EGR_Delta_Press_State EGR_Delta_Press_Keyon_Error EGR_Delta_Press EGR_Delta_Press_Source

141.

RPM MG/STROKE --IN_HG IN_HG IN_HG ----IN_HG

RPM MG/STROKE --KRPM KRPM KRPM ----KRPM

RPM FT*LB %open IN_HG IN_HG ----IN_HG ---

Charge_Press_Tolerance Charge_Press_Default Charge_Press_Keyon_Error Charge_Press_Source Charge_Press_State Charge_Press_IR_Enable Charge_Press_IR_Cond Charge_Press_IR_Error Charge_Press_IR_Fault_Cnt

IN_HG IN_HG ------------CNTS

T_Charge_Press_IR_Enable

HEX

Turbo_Speed_Source Turbo_Speed_Disabled Turbo_Speed_State Turbo_Speed_IR_State Turbo_Speed_IR_Enable Turbo_Speed_IR_Cond Turbo_Speed_In_Range_Error Turbo_Speed_IR_Fault_Count

--------------CNTS

T_Turbo_Speed_IR_Enable

HEX

EGR_DP_IR_Open_Error EGR_DP_IR_Open_Enable_Cond EGR_DP_IR_Open_Fault_Cond EGR_DP_IR_Open_Fault_Cnt EGR_DP_IR_Closed_Error EGR_DP_IR_Closed_Enable_Cond EGR_DP_IR_Closed_Fault_Cond EGR_DP_IR_Closed_Fault_Cnt EGR_DP_IR_Error

------CNTS ------CNTS ---

T_EGR_DP_IR_Enable

HEX

ECM_Internal_Tmptr ECM_Internal_Tmptr_Source ECM_Internal_Tmptr_Status Max_ECM_Tmptr Throughput_Percent_Busy Throughput_Percent_Idle Throughput_Time FTM_p_throughput_v

DEG_F ----DEG_F % % MSEC %

ECM Parameters Calibration_Version_Number Boot_Loader_Phase_Designation Reset_Count ECM_STAT ECM_Status RUN_TIME SEC_KEY Battery_Voltage

Cummins Engine Co., Inc. Confidential

HEX HEX --HEX HEX SEC HEX VOLT

Created by Brian J. Ouellette

Page 54

CM870 COMMON APPROACH TO CONTROL SYSTEM DIAGNOSTICS HPI-TP Fuel System: 142.

143.

Fuel Systems Interface (FSI) Filtered_Engine_Speed Fueling_Control_State FUEL SYSTEM OUTPUT PARAMETERS: FSI_q_totalFueling_v FSI_ca_mainSOI_v FSI_lp_Gallery_v FSI_lp_FlFilterln_v FSI_v_batt_v FSI_t_fuel_v FSI_t_coolant_v FSI_lp_Boost_v

MG/STROKE CRANK_DEG MBAR MBAR VOLT ----MBAR

BASE CONTROL SYSTEM PARAMETERS: Total_Fueling Final_Timing Fuel_Rail_Pressure Fuel_Pressure Battery_Voltage Fuel_Temperature Coolant_Temperature Boost_Pressure_Absolute

FSI_s_stopFuel_c FSI_s_stopOutputs_c

1 = OVERRIDE 1 = OVERRIDE

Overrides FSI_q_totalFueling_c and FSI_ca_mainSOI_v Suspends calculation of FSSC to Base Control System

RPM RPM -------

Fueling_Control_State

---

EPS_Crank_Start_Type EPS_Cam_Cycle_State

-----

PCC_lp_ModelPressure_v PCC_lp_PressureError_v PCC_q_FuelComp_v PCC_qt_TimingComp_v FTT_ti_BaseFlTTL_v FTT_q_CompFlCmd_v FTT_ti_BaseTmTTL_v FTT_qt_CompTmCmd_v

MBAR MBAR MG/STROKE MM3/STROKE MSEC MG/STROKE MSEC MM3/STROKE

145.

TTC_qt_tFlowComp_v FTC_q_fuelingComp_v FTT_ti_BaseFlTTL_v FTT_q_CompFlCmd_v FTT_ti_BaseTmTTL_v FTT_qt_CompTmCmd_v

MM3/STROKE MG/STROKE MSEC MG/STROKE MSEC MM3/STROKE

TTC_s_enable_c FTC_s_enable_c

-----

BPC_q_FuelComp_v FTT_ti_BaseFlTTL_v FTT_q_CompFlCmd_v BPC_lp_BoostErr_v

MG/STROKE MSEC MG/STROKE MBAR

BPC_s_Enable_c

---

Fuel Pressure Compensation (PCC) Filtered_Engine_Speed FSS_Total_Fueling Net_Engine_Torque Fueling_Control_State Fuel_Rail_Pressure FSI_lp_Gallery_v

RPM MG/STROKE FT*LB --PSI MBAR

PCC_s_Enable_c

---

Fuel Temperature Compensation (FTC/TTC) Filtered_Engine_Speed FSS_Total_Fueling Net_Engine_Torque Fueling_Control_State Fuel_Temperature FSI_t_fuel_v Coolant_Temperature FSI_t_coolant_v

146.

MG/STROKE CRANK_DEG PSI PSI VOLT DEG_F DEG_F IN_HG

Engine Speed Processing (EPS) Filtered_Engine_Speed EPS_Engine_Speed EPS_Status EPS_Main_Sync_State EPS_Backup_Sync_State

144.

RPM ---

RPM MG/STROKE FT*LB --DEG_F --DEG_F ---

Boost Pressure Compensation (BPC) Filtered_Engine_Speed FSS_Total_Fueling Net_Engine_Torque Fueling_Control_State Boost_Pressure_Absolute FSI_lp_Boost_v

Cummins Engine Co., Inc. Confidential

RPM MG/STROKE FT*LB --IN_HG MBAR

Created by Brian J. Ouellette

Page 55

CM870 COMMON APPROACH TO CONTROL SYSTEM DIAGNOSTICS 147.

Solid Fuel Height Determination (SFH) Filtered_Engine_Speed FSI_q_totalFueling_v Net_Engine_Torque Fueling_Control_State FSI_ca_mainSOI_v FDH_ca_SOIDerate_v

148.

CRANK_DEG CRANK_DEG MM MM3/STROKE MSEC MM3/STROKE

SFH_ca_MaxSOILimit_c SFH_ca_MinSOILimit_c

CRANK_DEG CRANK_DEG

RPM MG/STROKE FT*LB --CRANK_DEG VOLT MBAR PSI

EVD_ti_EstFlEVD_v EVD_ti_EstTmEVD_v

MSEC MSEC

EVD_s_Enable_c EVD_ti_UserFlEVD_c EVD_ti_UserTmEVD_c

--MSEC MSEC

RPM MG/STROKE FT*LB --CRANK_DEG IN_HG PSI VOLT

Inputs For Determining FTT Conversion: SFH_ca_TimingCommand_v SFH_qt_TimingFlow_v EVD_ti_EstFlEVD_v EVD_ti_EstTmEVD_v PCC_q_FuelComp_v PCC_qt_TimingComp_v BPC_q_FuelComp_v TTC_qt_tFlowComp_v FTC_q_fuelingComp_v Output From FTT Conversion Algorithm: FTT_q_CompFlCmd_v FTT_qt_CompTmCmd_v FTT_ti_BaseFlTTL_v FTT_ti_BaseTmTTL_v

Flow-To-Time Conversion (FTT) Filtered_Engine_Speed FSI_q_totalFueling_v Net_Engine_Torque Fueling_Control_State FSI_ca_mainSOI_v Boost_Pressure_Absolute Fuel_Rail_Pressure Battery_Voltage

Adjustment to Fueling Pulse Time-On: FTT_ti_FlAdust_c FTT_ti_TmAdust_c

150.

SFH_ca_EOI_v SFH_ca_TimingCommand_v SFH_ht_FuelColumn_v SFH_qt_TimingFlow_v FTT_ti_BaseTmTTL_v FTT_qt_CompTmCmd_v

Estimated Valve Delay (EVD) Filtered_Engine_Speed FSI_q_totalFueling_v Net_Engine_Torque Fueling_Control_State FSI_ca_mainSOI_v FSI_v_batt_v FSI_v_Gallery_v Fuel_Rail_Pressure

149.

RPM MG/STROKE FT*LB --CRANK_DEG CRANK_DEG

MSEC MSEC

CRANK_DEG MM3/STROKE MSEC MSEC MG/STROKE MM3/STROKE MG/STROKE MM3/STROKE MG/STROKE MG/STROKE MM3/STROKE MSEC MSEC

Cylinder Cut-Out Diagnostics (CTS) Filtered_Engine_Speed FSI_q_totalFueling_v FSI_ca_mainSOI_v Fueling_Control_State

RPM MG/STROKE CRANK_DEG ---

CTS_x_ActiveFlMask_v FSI_x_ExtCylMask_c CTS_x_UserFlMask_c FSI_x_ExtCylMask_c / CTS_x_UserFlMask_c = 003E FSI_x_ExtCylMask_c / CTS_x_UserFlMask_c = 001F FSI_x_ExtCylMask_c / CTS_x_UserFlMask_c = 0038 FSI_x_ExtCylMask_c / CTS_x_UserFlMask_c = 0007 CTS_x_UserTmMask_c

HEX HEX HEX Disables Cyl 1 Disables Cyl 6 Disables Cyl 1-3 Disables Cyl 4-6 HEX

Cummins Engine Co., Inc. Confidential

Fuel Actuator Time-On Trims: Cyl #1: CTS_ti_FlTrim_c[0] Cyl #2: CTS_ti_FlTrim_c[1] Cyl #3: CTS_ti_FlTrim_c[2] Cyl #4: CTS_ti_FlTrim_c[3] Cyl #5: CTS_ti_FlTrim_c[4] Cyl #6: CTS_ti_FlTrim_c[5] Timing Actuator Time-On Trims: Cyl #1: CTS_ti_TmTrim_c[0] Cyl #2: CTS_ti_TmTrim_c[1] Cyl #3: CTS_ti_TmTrim_c[2] Cyl #4: CTS_ti_TmTrim_c[3] Cyl #5: CTS_ti_TmTrim_c[4] Cyl #6: CTS_ti_TmTrim_c[5]

Created by Brian J. Ouellette

MSEC MSEC MSEC MSEC MSEC MSEC MSEC MSEC MSEC MSEC MSEC MSEC

Page 56

CM870 COMMON APPROACH TO CONTROL SYSTEM DIAGNOSTICS 151.

Cylinder Balancing Diagnostics (CBD) Filtered_Engine_Speed FSI_q_totalFueling_v FSI_ca_mainSOI_v Fueling_Control_State

152.

---

CBD Fueling Adjustments: Large Positive Adjustment = Weak Cylinder Large Negative Adjustment = Strong Cylinder Cyl #1: FSI_q_cbdTotalAdj_v[0] Cyl #2: FSI_q_cbdTotalAdj_v[1] Cyl #3: FSI_q_cbdTotalAdj_v[2] Cyl #4: FSI_q_cbdTotalAdj_v[3] Cyl #5: FSI_q_cbdTotalAdj_v[4] Cyl #6: FSI_q_cbdTotalAdj_v[5]

MSEC MSEC MSEC MSEC MSEC MSEC

RPM MG/STROKE --MBAR PSI MBAR PSI MBAR

Pressure Side Fuel Filter Diagnostics: FPD_lp_DPAdapted_v FPD_p_FilterServiceCk_p FPD_x_FilterCheckMiles_p Gallery Pressure Diagnostics: FPD_lp_LowThreshold_c FPD_lp_HighThreshold_c FPD_lp_LowCrankSupplyPrs_c

RPM MG/STROKE --PSI

FSO_Command FSO_p_PWMDutyCycle_v FSO_s_DiagState_v FSO_s_PWMState_v FSO_ct_Timer_v

--%DC ----SEC

Fault Derate Handler Reaction Calibrations: FDH_x_CBDTrimLimReact_c FDH_x_CylCutoutReact_c FDH_x_EPSBackupIntrSyncReact_c FDH_x_EPSBackupReact_c FDH_x_EPSMainIntrSyncReact_c FDH_x_EPSMainReact_c FDH_x_EPSPhaseReact_c FDH_x_FSOHighElectReact_c FDH_x_FSOLowElectReact_c FDH_x_FSOMechStuckReact_c FDH_x_FilterPOORReact_c FDH_x_FlPrsSenInRangeReact_c FDH_x_FrontFlActImpReact_c FDH_x_FrontFlActSevReact_c FDH_x_FrontTmActImpReact_c FDH_x_FrontTmActSevReact_c FDH_x_RearFlActImpReact_c FDH_x_RearFlActSevReact_c FDH_x_RearTmActImpReact_c FDH_x_RearTmActSevReact_c FDH_x_GalleryPOORReact_c FDH_x_HiFlSupplyPReact_c FDH_x_LowFlSupplyPReact_c FDH_x_PrsFlFiltCloggReact_c FDH_x_PrsFlFiltMaintgRact_c FDH_x_VBattOORReact_c

HEX HEX HEX HEX HEX HEX HEX HEX HEX HEX HEX HEX HEX HEX HEX HEX HEX HEX HEX HEX HEX HEX HEX HEX HEX HEX

MBAR % MI MBAR MBAR MBAR

Fuel Shut Off (FSO) Controls Filtered_Engine_Speed FSS_Total_Fueling Fueling_Control_State Fuel_Rail_Pressure

154.

CBD_s_compensation_c

Fuel Pressure Diagnostics (FPD) Filtered_Engine_Speed FSS_Total_Fueling Fueling_Control_State FSI_lp_FlFilterIn_v Fuel_Pressure FSI_lp_Gallery_v Fuel_Rail_Pressure PCC_lp_PressureError_v

153.

RPM MG/STROKE CRANK_DEG ---

Fuel System Fault Derate Handler (FDH) Filtered_Engine_Speed FSI_q_totalFueling_v FSI_ca_mainSOI_v Fueling_Control_State Fuel_Rail_Pressure Fuel_Pressure Fuel_Temperature EPS_Main_Sync_State EPS_Backup_Sync_State CTS_x_ActiveFlMask_v

RPM MG/STROKE CRANK_DEG --PSI PSI DEG_F ----HEX

FSSC Fault Derate Handler Parameters: FDH_x_ActiveReaction_v FDH_q_megaDerate_c FDH_q_miniDerate_c FDH_q_normalDerate_c FDH_ca_SOIDerate_c FDH_n_MinSpeedLimit_c FDH_n_MaxSpeedLimit_c FDH_n_DerateRate_c

HEX MG/STROKE MG/STROKE MG/STROKE CRANK_DEG RPM RPM RPM

Cummins Engine Co., Inc. Confidential

Created by Brian J. Ouellette

Page 57

CM870 COMMON APPROACH TO CONTROL SYSTEM DIAGNOSTICS 155.

CBD / ESP Based Unintended Fueling Diagnostics (CUFD) Filtered_Engine_Speed FSS_Total_Fueling Fueling_Control_State Engine_State Fuel_Rail_Pressure EPS_Main_Sync_State EPS_Backup_Sync_State E_Brake_Status CTS_x_UserFlMask_c FDH_x_CylinderMask_v FSI_x_ExtCylMask_v

Cummins Engine Co., Inc. Confidential

RPM MG/STROKE ----PSI ------HEX HEX HEX

CUFD_s_AlgorithmEnable_c CUFD_s_Enable_v CUFD_s_State_v CUFD_s_State_v = 0 CUFD_s_State_v = 1 CUFD_s_State_v = 2 CUFD_s_State_v = 3 CUFD_s_FSOEnable_v CUFD_x_CylinderMask_v CUFD_x_AugDeltaAccel_v CUFD_x_DeltaAccelThreshold_v

Created by Brian J. Ouellette

------Normal State Diag. State Low Power State Limphome State --HEX -----

Page 58

CM870 COMMON APPROACH TO CONTROL SYSTEM DIAGNOSTICS Legacy Information 156.

Hard Starting / Startup and Overshoot

Time: Monitor

0.1 sec

Filtered_Engine_Speed Total_Fueling Oil_Pressure

EPS_Main_Sync_State EPS_Backup_Sync_State Fuel_Rail_Pressure

Time: Monitor

0.2 sec

Filtered_Engine_Speed Total_Fueling Engine_State Fueling_Control_State_Value

FTT_ti_BaseFlTTL_v Final_Timing EPS_Main_Sync_State EPS_Backup_Sync_State

157.

Cold Starting

Time: Monitor

0.5 sec

158.

Clutch Engagement / Idle Overshoot

Time: Monitor

0.1 sec

Filtered_Engine_Speed Total_Fueling Road_Speed

Time: Monitor

0.2 sec

Filtered_Engine_Speed Road_Speed Total_Fueling

Fueling_Control_State_Value FTT_ti_BaseFlTTL_v Commanded_Throttle

Time: Monitor

0.4 sec

Filtered_Engine_Speed Road_Speed Total_Fueling Ndot_LSG FTT_ti_BaseFlTTL_v

Commanded_Throttle Fueling_Control_State_Value OFC_Fuel_Limit Sampled_Throttle_Raw System_Switch_Status

159.

Throttle Control – Min / Max (Automotive Governor)

Filtered_Engine_Speed Total_Fueling Fueling_Control_State_Value Final_Timing Final_Timing_State EPS_Main_Sync_State EPS_Backup_Sync_State

Fuel_Rail_Press Battery_Volt Charge_Tmptr Coolant_Tmptr FTT_ti_BaseFlTTL_v FTT_ti_BaseTmTTL_v Reset_Count

Make note of any tendency towards seat movement/chassis vibration, pedal events, etc. Is seat locked? Location of driver’s foot.

How is driver’s foot touching the throttle pedal? Is the driver’s heel firmly on the pedal or is it above pedal? Does the driver’s heel slide along the cab floor?

Time: 0.1 sec Filtered_Engine_Speed Sampled_Throttle_Raw Monitor Commanded_Throttle Total_Fueling Time: Monitor

0.2 sec

Filtered_Engine_Speed Sampled_Throttle_Raw Total_Fueling Fueling_Control_State_Value Filtered_Gear_Ratio

Commanded_Throttle Boost_Pressure Road_Speed

Time: Monitor

0.4 sec

Filtered_Engine_Speed Sampled_Throttle_Raw Total_Fueling Fueling_Control_State_Value Commanded_Throttle Road_Speed

FTT_ti_BaseFlTTL_v Throttle_Range Auto_Zero Ndot_Demand TQM_Final_Torque_Cmd

Cummins Engine Co., Inc. Confidential

Created by Brian J. Ouellette

Page 59

CM870 COMMON APPROACH TO CONTROL SYSTEM DIAGNOSTICS 160.

Throttle Control – All Speed (VS) Governor

Time: Monitor

0.2 sec

Filtered_Engine_Speed Fueling_Control_State_Value Sampled_Throttle_Raw Commanded_Throttle

Ndot_ASG Ndot_Demand Road_Speed Commanded_Throttle

Time: Monitor

0.4 sec

Filtered_Engine_Speed Sampled_Throttle_Raw Ndot_ASG Total_Fueling Commanded_Throttle Road_Speed

Boost_Pressure Fueling_Control_State_Value FTT_ti_BaseFlTTL_v Ndot_Demand TQM_Final_Torque_Cmd

161.

Cruise Control / Road Speed / Geardown Governor Behavior

Time: Monitor

0.1 sec

Filtered_Engine_Speed Total_Fueling Road_Speed

Time: Monitor

0.2 sec

Filtered_Engine_Speed Fueling_Control_State_Value Adjusted_User_Fueling_State Total_Fueling

Road_Speed Ndot_Demand Net_Engine_Torque CC_Error

Time: Monitor

0.5 sec

Filtered_Engine_Speed CC_Error Ndot_Cruise_Control Ndot_Demand Net_Engine_Torque Total_Fueling System_Switch_Status

Fueling_Control_State_Value Ndot_Net_Torque_Cmd_State Commanded_Throttle Road_Speed Boost_Pressure Cruise_Max_Road_Speed Cruise_Control_Reference_Speed

Make note of any tendency towards seat movement/chassis vibration, pedal events, etc. Is seat locked? Location of driver’s foot.

How is driver’s foot touching the throttle pedal?

Time: 0.1 sec Filtered_Engine_Speed ASG_Throttle_Reference_RPM Monitor Sampled_Throttle_Raw ASG_Reference_Speed Ndot_ASG

Cruise Control Setting Switch Diagnostics Time: 0.2 sec Filtered_Engine_Speed Monitor Fueling_Control_State_Value Cruise_Control_Reference_Speed

Total_Fueling System_Switch_Status Road_Speed

162.

Cruise Control With Engine Brakes

Time: Monitor

0.1 sec

Filtered_Engine_Speed Total_Fueling Road_Speed

Time: Monitor

0.2 sec

Filtered_Engine_Speed Fueling_Control_State_Value Adjusted_User_Fueling_State Total_Fueling

Road_Speed Ndot_Demand Net_Engine_Torque CC_Error

Time: Monitor

0.5 sec

Filtered_Engine_Speed CC_Error Charge_Press Exhaust_Press Net_Engine_Torque Total_Fueling System_Switch_Status

Fueling_Control_State_Value Ndot_Net_Torque_Cmd_State Commanded_Throttle Road_Speed Charge_Flow Cruise_Max_Road_Speed Cruise_Control_Reference_Speed

Cummins Engine Co., Inc. Confidential

Created by Brian J. Ouellette

Page 60

CM870 COMMON APPROACH TO CONTROL SYSTEM DIAGNOSTICS 163.

Cruise Control With AutoResume

Time: Monitor

0.2 sec

Filtered_Engine_Speed Total_Fueling Fueling_Control_State_Value

Road_Speed Cruise_Control_Status CC_Error

Time: Monitor

0.4 sec

Ndot_Net_Torque_Cmd_State Cruise_Droop Total_Fueling Fueling_Control_State_Value Road_Speed

Cruise_Control_Reference_Speed CC_Error System_Switch_Status Cruise_Control_Status Cruise_Command_Mode

164.

Engine Braking

Time: Monitor

0.2 sec

Filtered_Engine_Speed E_Brake_Status Boost_Pressure Net_Engine_Torque

Commanded_Throttle Road_Speed Total_Fueling

Time: Monitor

0.4 sec

Filtered_Engine_Speed E_Brake_Status EB_Driver_Level Total_Fueling Net_Engine_Torque

Commanded_Throttle Fueling_Control_State_Value Boost_Pressure Road_Speed Ambient_Air_Press

Time: Monitor

0.5 sec

Filtered_Engine_Speed E_Brake_Status EB_Driver_Level Total_Fueling Net_Engine_Torque Commanded_Throttle Fueling_Control_State_Value Boost_Pressure

Road_Speed Charge_Tmptr System_Switch_Status Ambient_Air_Press Coolant_Tmptr Oil_Press Exhaust_Press Charge_Flow

165.

Low Power – Road Speed Governor

Time: Monitor

0.1 sec

Filtered_Engine_Speed Total_Fueling Road_Speed

Time: Monitor

0.2 sec

Filtered_Engine_Speed Ndot_Net_Torque_Cmd_State Boost_Pressure

Total_Fueling Commanded_Throttle Road_Speed

Time: Monitor

0.4 sec

Filtered_Engine_Speed Throttle_100_Torque Fueling_Control_State_Value Total_Fueling Commanded_Throttle Ndot_Demand

Ndot_RSG OFC_Fuel_Limit OFC_EGR_Disable Road_Speed Boost_Pressure

166.

Low Power – Geardown Protection

Time: Monitor

0.1 sec

Filtered_Engine_Speed Total_Fueling Road_Speed

Time: Monitor

0.2 sec

Filtered_Engine_Speed RSG_Reference_Speed Boost_Pressure Gear_Down_Active

Total_Fueling Commanded_Throttle Road_Speed

Time: Monitor

0.4 sec

Filtered_Engine_Speed Cruise_RSG_Road_Speed Total_Fueling Fueling_Control_State_Value Ndot_Net_Torque_Cmd_State

Commanded_Throttle Filtered_Gear_Ratio User_Filtered_Gear_Ratio Gear_Down_Gear_Ratio Gear_Down_Active

Cummins Engine Co., Inc. Confidential

Created by Brian J. Ouellette

Page 61

CM870 COMMON APPROACH TO CONTROL SYSTEM DIAGNOSTICS 167.

Low Power – Boost Response Test

Time: Monitor

0.1 sec

Filtered_Engine_Speed Boost_Pressure Commanded_Throttle

Time: Monitor

0.2 sec

Filtered_Engine_Speed Sampled_Throttle_Raw Boost_Pressure Total_Fueling

Net_Engine_Torque Commanded_Throttle Road_Speed VGT_Duty_Cycle

Time: Monitor

0.3 sec

Filtered_Engine_Speed Fueling_Control_State_Value Total_Fueling Alpha Final_Timing_State

Final_Timing Commanded_Throttle Road_Speed Boost_Pressure VGT_Duty_Cycle Net_Engine_Torque

Time: Monitor

0.5 sec

Filtered_Engine_Speed Fueling_Control_State_Value Total_Fueling Alpha Final_Timing_State Final_Timing Commanded_Throttle Road_Speed

Boost_Pressure Ambient_Air_Press EGR_Position VGT_Duty_Cycle Filtered_Turbo_Speed OFC_Fuel_Limit Fuel_Rail_Press PCC_lp_PressureError_v

168.

Throttle Characterization / Idle Validation Switches

169.

Low Idle Stability / Rough Idle

Time: Monitor

0.2 sec

Filtered_Engine_Speed Total_Fueling Final_Timing

FTT_ti_BaseFlTTL_v Fueling_Control_State_Value Final_Timing_State

Time: Monitor

0.5 sec

Filtered_Engine_Speed Total_Fueling Final_Timing FTT_ti_BaseFlTTL_v FTT_ti_BaseTmTTL_v EPS_Engine_Speed Fuel_Rail_Press PCC_lp_PressureError_v

LSG_Breakpoint_Speed CBD_s_adjusting_v CBD_s_error_v LSG_Error Ndot_LSG Ndot_Demand Ndot_Error

Make note of throttle pedal make and model.

Slowly ramp throttle from fully released to fully depressed to fully released – especially near 0 and 100 % throttle.

Engine speed data is useful in evaluating throttle deadband (EM00168).

Time: 0.4 sec Filtered_Engine_Speed Sampled_Throttle_Raw Monitor Auto_Zero Throttle_Status Throttle_Min Total_Fueling Sampled_Throttle Fueling_Control_State Commanded_Throttle System_Switch_Status FTT_ti_BaseFlTTL_v System_Switch_Status_2

Record Oil_Temperature, Coolant_Temperature, Intake_Manifold_Temperature Time: 0.1 sec Filtered_Engine_Speed Monitor Total_Fueling Final_Timing

Cummins Engine Co., Inc. Confidential

Created by Brian J. Ouellette

Page 62

CM870 COMMON APPROACH TO CONTROL SYSTEM DIAGNOSTICS 170.

PTO Response / Stability

Time: Monitor

0.3 sec

171.

No Load Friction / Light Load Throttle Control

Time: Monitor

0.3 sec

172.

Turbo Surge Conditions

Time: Monitor

0.1 sec

Filtered_Engine_Speed Boost_Pressure

Commanded_Throttle VGT_Duty_Cycle

Time: Monitor

0.2 sec

Filtered_Engine_Speed Boost_Pressure Commanded_Throttle

Total_Fueling System_Switch_Status Ambient_Air_Press VGT_Duty_Cycle

Time:

0.5 sec

Filtered_Engine_Speed Boost_Pressure Commanded_Throttle Total_Fueling System_Switch_Status Ambient_Air_Press Charge_Tmptr Road_Speed

VGT_Duty_Cycle Charge_Flow CHL_MCF_Cmd EGR_Fraction CHL_EGR_Frac_Cmd EGR_Position EGR_Delta_Press Filtered_Turbo_Speed

173.

ESP Performance (Hill Climbing)

Time: Monitor

0.4 sec

Record Oil_Temperature, Coolant_Temperature, Intake_Manifold_Temperature Ramp engine speed from idle to PTO speed via SET or RESUME switch.

Time: 0.1 sec Filtered_Engine_Speed Monitor Total_Fueling Final_Timing Filtered_Engine_Speed Total_Fueling PTO_State PTO_Status

Ndot_PTO Ndot_Demand Fueling_Control_State_Value PTO_Error System_Switch_Status

Take two sets of data: One with bare engine and one with fan control locked ON (optional).

Gently activate throttle to slowly ramp engine speed from low idle to high idle (30 second ramp).

Time: 0.2 sec Filtered_Engine_Speed Total_Fueling Monitor Sampled_Throttle_Raw Commanded_Throttle Fueling_Control_State_Value Final_Timing Boost_Pressure Filtered_Engine_Speed Sampled_Throttle_Raw Fueling_Control_State_Value Total_Fueling Commanded_Throttle

Filtered_Engine_Speed Boost_Pressure Commanded_Throttle Total_Fueling System_Switch_Status Fueling_Control_State_Value ESP_Learned_Speed

Cummins Engine Co., Inc. Confidential

Oil_Tmptr No_Load_Torque Net_Engine_Torque Final_Timing Boost_Pressure FTT_ti_BaseFlTTL_v

Road_Speed User_Filtered_Gear_Ratio ESP_Tau ESP_Tau_State ESP_Cruise_Timer ESP_Throttle_Timer_1

Created by Brian J. Ouellette

Page 63

CM870 COMMON APPROACH TO CONTROL SYSTEM DIAGNOSTICS 174.

VSS Anti-Tampering

Time: Monitor

0.4 sec F/C 242

175.

Acceleration Noise Control

Make note of Calibration_Version_Number (Application Software Phase) Time: 0.3 sec Filtered_Engine_Speed Throttle_Status Monitor F/C 241 Road_Speed System_Switch_Status Total_Fueling VSS_Tamper_State Fueling_Control_State_Value Filtered_Engine_Speed J1587_Percent_Load Total_Fueling Fueling_Control_State

Record Coolant_Temperature during testing.

Time: 0.3 sec Filtered_Engine_Speed Monitor Total_Fueling Commanded_Throttle Fueling_Control_State_Value Filtered_Engine_Speed Total_Fueling Commanded_Throttle Fueling_Control_State_Value Final_Timing Effective_Gear_Ratio

User_Filtered_Gear_Ratio VSS_Tamper_State VSS_Tampering_Error

Road_Speed ANC_Fuel_Limit_Status ANC_Timing_Limit_Status Ndot_ANC

Time: Monitor

0.4 sec

Road_Speed ANC_Fuel_Limit_Status ANC_Timing_Limit_Status Ndot_ANC Ndot_Demand OFC_Fuel_Limit

176.

Cold Temperature Stumble / IMT SOI Advance Control (White Smoke)

Rapid accelerations under free-engine conditions may lead to white smoke and/or poor acceleration. A combination of data Is recommended. The first set of data serves as the baseline to engine conditions at idle prior to the second data set.

The second set of data captures various engine conditions and temperatures as the engine warms up.

Record DATA 1 prior to DATA 2, then record DATA 1 again to document engine conditions as engine conditions change.

Time: 0.3 sec Filtered_Engine_Speed Oil_Tmptr Monitor DATA 1 Ambient_Air_Press Charge_Tmptr Coolant_Tmptr Boost_Pressure Final_Timing EGR_Fraction Time: Monitor

0.3 sec DATA 2

Filtered_Engine_Speed Total_Fueling Fueling_Control_State_Value EGR_Fraction

Final_Timing Final_Timing_State Boost_Pressure

177.

Road Speed Governor / Cruise Control Hiccup / Miss

Try and log these different combinations of parameters. Logging at any slower rate with more parameters significantly reduces the likelihood of capturing the event. If necessary, utilize Internal Data Logger with parameters listed.

Time: 0.1 sec Filtered_Engine_Speed Monitor Out_Of_Gear Road_Speed Time: Monitor

0.1 sec

Filtered_Engine_Speed Total_Fueling Fueling_Control_State_Value

Time: Monitor

0.1 sec

Filtered_Engine_Speed Fueling_Control_State_Value Road_Speed

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CM870 COMMON APPROACH TO CONTROL SYSTEM DIAGNOSTICS 178.

High Speed Governor Stability

Time: Monitor

0.5 sec

179.

Stumble During Rapid Accel

Time: Monitor

0.4 sec

180.

Ambient Air Pressure Sensor – Poor Engine Performance

Time: Monitor

0.3 sec

181.

Stationary Test – Brake Activation Delay

These parameters can be used for logging most HSG issues, Transient and Steady State.

Time: 0.3 sec Filtered_Engine_Speed HSG_Reference_Speed Monitor Total_Fueling Ndot_HSG Fueling_Control_State_Value Ndot_Demand HSG_Ref_Speed_State Ndot_Error HSG_Droop_Speed Filtered_Engine_Speed Total_Fueling Fueling_Control_State_Value Adjusted_User_Fueling Adjusted_User_Fueling_State HSG_Reference_Speed HSG_Ref_Speed_State HSG_Droop_Speed

FTT_ti_BaseFlTTL_v Zero_Vss_Derate_RPM Ndot_Demand Ndot_HSG Ndot_Error Ndot_Net_Torque_Cmd Net_Engine_Torque

OFC (Oxygen-Fuel Control) related stumble or poor acceleration.

Time: 0.1 sec Filtered_Engine_Speed Monitor Total_Fueling OFC_Fuel_Limit Filtered_Engine_Speed Total_Fueling OFC_Fuel_Limit OFC_Limited OFC_Equiv_Ratio_Limit

Filtered_Engine_Speed Total_Fueling Fueling_Control_State_Value Air_Pressure_Sensor Air_Pressure_Sensor_Raw

Charge_Flow Total_O2_in_Cylinder Final_Timing Final_Timing_State Alpha CBR_Chi_Value

Ambient_Air_Press Boost_Pressure Charge_Tmptr

Use with manual throttle event. Cycle throttle pedal. Engine speed snap throttles from High idle to low idle with Engine Brake switch ON. Collect data at cold oil temperature And at every 20 deg F as engine warms up.

Time: 0.1 sec Filtered_Engine_Speed Monitor Commanded_Throttle Fueling_Control_State_Value Time: Monitor

0.2 sec

Filtered_Engine_Speed Commanded_Throttle Fueling_Control_State_Value

182.

Fan Drive Activation

Time: Monitor

0.3 sec

Filtered_Engine_Speed Total_Fueling Fan_Drive_State

Coolant_Tmptr Charge_Tmptr System_Switch_Status System_Switch_Status_2

Time: Monitor

0.5 sec

Filtered_Engine_Speed Total_Fueling Fueling_Control_State_Value Fan_Drive_State Air_Conditioner_Pressure_Switch Manual_Fan_Input Coolant_Tmptr Charge_Tmptr

Fan_Manual_Input_Request Fan_Air_Conditioner_Request Fan_Coolant_Temp_Request Fan_Intake_Manifold_Temp_Request Fan_Clutch_Status_1 Fan_Request

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Total_Fueling EB_Driver_Level Oil_Tmptr

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CM870 COMMON APPROACH TO CONTROL SYSTEM DIAGNOSTICS 183.

ECM Trip Information / Fuel Economy Accuracy

184.

Datalink Torque Calculations

Time: Monitor

0.3 sec

185.

Integrated Centinel (CORS)

Time: Monitor

0.3 sec

186.

Starter Lockout

Time: Monitor

0.2 sec

187.

Fan Control

Time: Monitor

0.5 sec

188.

Anti-Theft

Time: Monitor

0.1 sec

189.

Cab Switchable Governor

Time: Monitor

0.2 sec

Commanded_Throttle Total_Fueling Ndot_Net_Torque_Cmd

No_Load_Torque User_Selected_Throttle_Control Filtered_Engine_Speed

Time: Monitor

0.3 sec

Filtered_Engine_Speed Total_Fueling Fueling_Control_State_Value User_Selected_Throttle_Control Ndot_Net_Torque_Cmd

No_Load_Torque Commanded_Throttle Ndot_ASG Ndot_Four_D Ndot_Demand

Record Odometer and Hubometer Miles at start and end of trip. Top-Off fuel tank at start and end of trip For comparison of fill gallons / miles against data-logged ECM data at start and end of trip.

Calculate ECM MPG accuracy based on actual (fill/odom/hubo) versus ECM. Log data at state line crossings or freeway mile markers for reference to Trip_Distance.

Confidence in results increases with long trips. If possible, trips of sufficient length to require multiple Fuel fills between start and end.

Time: 1.0 sec Trip_Distance Trip_PTO_Fuel_Used Monitor Trip_CC_Distance Trip_Drive_Fuel_Used Trip_GD_Distance Trip_Time Trip_TG_Distance Trip_Idle_Time Trip_ESP_Distance Trip_PTO_Time Trip_RSG_Distance Total_Distance Trip_Fuel_Used Total_Fuel_Usage Trip_Idle_Fuel_Used Trip_Average_Load

Filtered_Engine_Speed Total_Fueling Fueling_Control_State_Value J1587_Percent_Load J1587_Fuel_Rate

CORS_Burn_Valve_Command Trip_Average_Load Trip_Drive_Distance Trip_Fuel_Used

Filtered_Engine_Speed Total_Fueling Fueling_Control_State_Value

Filtered_Engine_Speed Total_Fueling Fueling_Control_State_Value Fan_Drive_State System_Switch_Status System_Switch_Status_2 Fan_Clutch_Status_1

Filtered_Gear_Ratio Jcomm_Drivers_Demand_Ind_Torque J1939_Fuel_Rate Road_Speed

Trip_Average_Fuel_Rate J1587_Fuel_Rate Filtered_Engine_Speed Total_Fueling

Commanded_Throttle Engine_State Starter_Lockout_Driver

Coolant_Tmptr Charge_Tmptr Fan_Air_Conditioner_Request Fan_Coolant_Temp_Request Fan_Intake_Manifold_Temp_Request Fan_EB_Request Fan_Manual_Input_Request

Filtered_Engine_Speed Engine_State Anti_Theft_State

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CM870 COMMON APPROACH TO CONTROL SYSTEM DIAGNOSTICS 190.

Driver Reward

Time: Monitor

0.1 sec

Trip_Average_Fuel_Economy DR_RSG_CC_Delta DR_ESP_Delta

Time: Monitor

0.2 sec

Trip_Average_Fuel_Economy DR_RSG_CC_Delta DR_ESP_Delta

Max_Road_Speed Cruise_Max_Road_Speed ESP_Tau_State

Time: Monitor

0.3 sec

Trip_Average_Fuel_Economy DR_RSG_CC_Delta DR_ESP_Delta Max_Road_Speed Cruise_Max_Road_Speed

ESP_Tau_State Trip_Idle_Time Trip_Short_Stop_Idle_Time Trip_PTO_Time

Time: Monitor

0.4 sec

Trip_Average_Fuel_Economy DR_RSG_CC_Delta DR_ESP_Delta Max_Road_Speed Cruise_Max_Road_Speed ESP_Tau_State

Trip_Idle_Time Trip_Short_Stop_Idle_Time Trip_PTO_Time Trip_Time Driver_Reward_State Road_Speed

NOTE THE FOLLOWING VALUES: DR_ESP_Reward1 DR_ESP_Reward2 DR_ESP_Reward3 DR_ESP_Reward4 DR_MPG_Threshold1 DR_MPG_Threshold2 DR_MPG_Threshold3 DR_CC_RSG_Both_Option

191.

DR_RSG_CC_Reward1 DR_RSG_CC_Reward2 DR_RSG_CC_Reward3 DR_RSG_CC_Reward4 DR_ZVS_Percent1 DR_ZVS_Percent2 DR_ZVS_Percent3 Cruise_Max_Road_Speed_Trim Max_Road_Speed_Trim

FSSC: Cylinder Cut-Out

Cylinder Trim Selection (CTS) determines the final actuator pulse times and crank angle placement.

CTS algorithm applies single cylinder on-time trims and reconciles cylinder cut-outs. CTS algorithm also Contains important engineering overrides. CTS can be used to disable cylinders for troubleshooting.

Time: 0.2 sec Filtered_Engine_Speed Monitor Total_Fueling Fueling_Control_State_Value CTS_x_ActiveFlMask_v FTT_ti_BaseFlTTL_v FTT_ti_BaseTmTTL_v

OVERRIDE CYLINDER ON-TIMES: CTS_x_UserFlMask_c

CTS_ti_FlTrim_c[0-5]

NOTE: CTS_x_ActiveFlMask_v

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Disable #1 Cyl – set value to 003E hex Disable #6 Cyl – set value to 001F hex Disable Front Bank – set value to 0038 hex Disable Rear Bank – set value to 0007 hex CTS_ti_FlTrim_c[0] = 0.5 msec – add 0.5 msec on-time to #1 Cyl CTS_ti_FlTrim_c[5] = -0.5 msec – remove 0.5 msec on-time to #6 Cyl Hex value which indicates active cylinders. Bits 0-5 correspond to Cylinders 1-6. Bit value of 1 indicates cylinder is enabled.

CTS_x_ActiveFlMask_c = 003F – all 6 cylinders enabled

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CM870 COMMON APPROACH TO CONTROL SYSTEM DIAGNOSTICS 192.

Powertrain Protection

Time: Monitor

0.1 sec

PTP_Torque_Output Net_Engine_Torque Fueling_Control_State_Value

Time: Monitor

0.2 sec

PTP_Torque_Output Net_Engine_Torque Fueling_Control_State

Adjusted_User_Fueling_State Total_Fueling

Time: Monitor

0.4 sec

PTP_Torque_Output Net_Engine_Torque Throttle_100_Torque Fueling_Control_State_Value Filtered_Gear_Ratio Ndot_Net_Torque_Cmd

Total_Fueling PTP_Switched_Input Ndot_Demand Ndot_Powertrain Ndot_Error

193.

Smart Road Speed Governor

Time: Monitor

0.2 sec

Filtered_Engine_Speed Total_Fueling Fueling_Control_State

Max_Road_Speed System_Switch_Status SR_Reference_Speed

Time: Monitor

0.4 sec

Filtered_Engine_Speed Total_Fueling Fueling_Control_State_Value SR_Reference_Speed Max_Road_Speed Road_Speed

System_Switch_Status Cruise_Control_Accel_Switch Cruise_Control_Coast_Switch Cruise_Control_On_Switch

194.

J1939 Devices / Eaton Autoshift

Time: Monitor

0.5 sec

195.

Highway Cruise Strategy Data Collection

Filtered_Engine_Speed Total_Fueling Fueling_Control_State_Value Jcomm_Engine_Control_Mode Jcomm_Reference_RPM Jcomm_Reference_Engine_Torque Jcomm_Engine_Speed_Limit_RPM Jcomm_Retarder_Control_Mode E_Brake_Status

Jcomm_Engine_Control_Device_Indicator E_Brake_Status HSG_Reference_Speed Jcomm_High_Idle_Override Commanded_Throttle Road_Speed Jcomm_Retarder_Torque_Command Jcomm_Engine_Torque_Command

Also record: Estimate of Gross Vehicle Combined weight Route start location Ambient conditions: Ambient_Air_Tmptr, Ambient_Air_Press, Rel Humidity Note odometer at start and end of datalog Note route description during test, note any major events during test Time: 1.0 sec Filtered_Engine_Speed Alpha_Fuel_Rate Monitor Road_Speed Alpha_AFC_Timer Commanded_Throttle Alpha_LSG_Timer Total_Fueling Alpha_Governor Fueling_Control_State_Value Current_Torque_Output Delta_Fuel_Trip Net_Engine_Torque Alpha J1587_Percent_Load Final_Timing System_Switch_Status Final_Timing_State

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CM870 COMMON APPROACH TO CONTROL SYSTEM DIAGNOSTICS 196.

Duty Cycle Logging of Route

Time: Monitor

0.3 sec

Filtered_Engine_Speed Road_Speed Boost_Pressure Total_Fueling Fueling_Control_State_Value Commanded_Throttle

Net_Engine_Torque Final_Timing Total_Distance

Time: Monitor

0.5 sec

Filtered_Engine_Speed Total_Fueling Fueling_Control_State_Value Final_Timing Net_Engine_Torque Road_Speed Commanded_Throttle Total_Distance

CBR_Chi_Value Oil_Tmptr –OR- Coolant_Tmptr EB_Driver_Level EGR_Valve_Delta_Press Charge_Press Charge_Tmptr EGR_Position VGT_Duty_Cycle

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CM870 COMMON APPROACH TO CONTROL SYSTEM DIAGNOSTICS CM870 ENGINEERING STATES ** NOTE: Fueling_Control_State represents the Alpha Value while Fueling_Control_State_Value represents the Enumeration ** ENGINE TORQUE / FUEL COMMAND ENGINEERING STATES: Fueling_Control_State Desired_User_Fueling_State Fueling_Control_State_Value Adjusted_User_Fueling_State TQM_Net_Engine_Torque_State Ndot_Net_Torque_Cmd_State TQM_Machine_Torque_Limit_State CBR_Fuel_Ref_State TQM_Engine_Torque_Limit_State State NOT_SET FUELING_JCOMM_TORQUE_STATE FUELING_JCOMM_SPEED_STATE FUELING_PROGRESSIVE_SHIFT_SPEED_STATE FUELING_PTO_STATE FUELING_USER_COMMAND_STATE FUELING_LIMP_HOME_STATE FUELING_ASG_THROTTLE_STATE FUELING_FOUR_DIMENSION_STATE FUELING_CRUISE_CONTROL_STATE FUELING_RSG_STATE FUELING_LSG_STATE FUELING_HSG_STATE FUELING_TORQUE_DERATE_OVERRIDE_STATE FUELING_LOW_GEAR_STATE FUELING_ALTITUDE_DERATE_STATE FUELING_OFC_DERATE_STATE FUELING_ANC_DERATE_STATE FUELING_ENGINE_PROTECT_STATE FUELING_MAXIMUM_THROTTLE_STATE FUELING_JCOMM_TORQUE_DERATE_STATE FUELING_OUT_OF_GEAR_STATE FUELING_CRANK_STATE FUELING_OVERRIDE_STATE FUELING_ENGINE_BRAKE_STATE FUELING_OVERSPEED_STATE FUELING_STOP_STATE FUELING_SHUTDOWN_STATE FUELING_FSS_DERATE_STATE FUELING_EPF_DERATE_STATE FUELING_ASG_APPLICATION_STATE FUELING_ALTERNATE_TORQUE_STATE FUELING_MS_OVERRIDE_STATE FUELING_ENGINE_STARTUP_OIL_LIMIT FUELING_PTO_DERATE_STATE FUELING_TORQUE_CONTROL_STATE FUELING_PTP_DERATE_STATE FUELING_T2_SPEED_STATE FUELING_T2_TORQUE_STATE FUELING_T2_DERATE_STATE FUELING_NO_DERATE_STATE FUELING_ANTI_THEFT_DERATE_STATE FUELING_PARTIAL_THROTTLE_LIMIT_STATE SS_AMBIENT_DERATE_STATE TRANSIENT_COOLANT_DERATE_STATE FUELING_RMG_STATE FUELING_AIR_DENSITY_LIMIT_STATE FUELING_CHI_FUEL_LIMIT_STATE FUELING_TFC_DERATE_STATE FUELING_CBR_GROSS_FUEL_OVERRIDE_STATE FUELING_CHM_DERATE_STATE FUELING_JCOMM_PTP_DERATE_STATE

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Alpha Value NOT_SET JCOMTORQ JCOMSPED PSSPEED PTO USERCOMD LIMPHOME ASGTHROT FOUR_D CRUISE RSG LSG HSG TRQDROVR LOWGEAR ALTDERAT OFCDERAT ANCDERAT EPF MAXTHROT JCTRQDER OUTOGEAR CRANK OVERRIDE ENGBRAKE OVERSPED STOP SHUTDOWN FSSDERAT EPFDERAT ASG_APPL ALT_TORQ MSOVRIDE ESUOILLM PTODERAT TORQCTRL PTPDERAT T2SPD T2TORQ T2DERAT NODERAT ATDERAT PTTHLM SSAMBTDR TSCOOLDR RMG CHILIMIT TFCDERAT CBRGROSS CHMDERAT JCOMMPTP

Enumeration 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51

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CM870 COMMON APPROACH TO CONTROL SYSTEM DIAGNOSTICS ENGINE OPERATING CONDITION (ALPHA/CHI) STATES: Engine_State State Alpha Value Enumeration Engine_Stop_State STOP 1 Engine_Crank_State CRANK 2 Engine_Run_State RUN 3 Engine_Brake_State ENGBRAKE 4 Engine_Overspeed_State OVERSPED 5 Engine_Jumpstart_State JUMPSTRT 6 Engine_Crank_Reentry_State REENTRY 7 Engine_Shutdown_State SHUTDOWN 8 Alpha CBR_Alpha State Urban Mode / Transient On-Highway / Steady State

Alpha Value URBAN OPEN_ROAD

Enumeration 0 1

Alpha_State State Base User Altitude_Derate Engine_Protection Slave_State ESP_Alpha

Alpha Value BASE USER ALTITUDE EPF SLAVE ESP

Enumeration 0 1 2 3 4 5

CBR_Chi_Value State Chi 1: Steady State Chi 2: AECD Region II Chi 3: AECD Region III Chi 4: EGR Off

Alpha Value CHI 1 CHI 2 CHI 3 CHI 4

Enumeration 1 2 3 4

CBR_Chi_Source State CBR_DENSITY_CHI CBR_EXHAUST_CHI CBR_COOLANT_CHI CBR_EGR_OFF_CHI USER_OVERRIDE_SOURCE CBR_FULL_USER_OVERRIDE_CHI CBR_SINGLE_USER_OVERRIDE_CHI CBR_PROTECTION_CHI

Alpha Value DENS_CHI EXH_CHI COOL_CHI EGR_OFF_CHI OVERRIDE FULL_OD SINGLE_OD PROTECT_CHI

Enumeration 1 2 3 10 11 12 13 14

ESP_Tau_State State Normal Reverse Steep Grade

Alpha Value NORMAL REVERSE STEEP_GRADE

Enumeration 0 1 2

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CM870 COMMON APPROACH TO CONTROL SYSTEM DIAGNOSTICS EMMISION MANAGER AECD STATES: EMM_AECD_State State Emission Protection Air Handling System Protection Extreme Ambient Overheat Protection Condensation Protection White Smoke / Misfire Protection Extended Idle & PTO Protection Engine Starting and Warmup Protection Engine Protection Diagnostic Procedures

Decimal Value 0 1 2 4 8 16 32 64 128

Bit Mask None Bit 0 Bit 1 Bit 2 Bit 3 Bit 4 Bit 5 Bit 6 Bit 7

EMISSION MANAGER PROTECTION STATES: EMM_Protection_State State Decimal Value Normal Operation 0 Cranking 1 Normal Shutdown 2 Minor Engine Protection 4 Major Engine Protection 8 Emergency Shutdown 16 Wet Stack Protection 32 Coolant Advance 64 EGR Off Allowed 128 EGR System Failure 256 Cylinder Pressure Limit 512

Bit Mask None Bit 0 Bit 1 Bit 2 Bit 3 Bit 4 Bit 5 Bit 6 Bit 7 Bit 8 Bit 9

1 = EMM STATE ACTIVE 0 = EMM STATE NOT ACTIVE 0000 = 0 0001 = 1 1000 = 8 1001 = 9

0010 = 2 1010 = 10

0011 = 3 1011 = 11

0100 = 4 1100 = 12

0101 = 5 1101 = 13

0110 = 6 1110 = 14

0111 = 7 1111 = 15

Converting DECIMAL to BINARY: Divide the DECIMAL value by 2, and keep dividing the remainder by 2 until you reach a value of 1. Integer values are only used, so 1 divided by 2 becomes 0 with a remainder of 1. The combined remainders become the BINARY equivalent. Example: 512/2 = 256 256/2 = 128 128/2 = 64 64/2 = 32 32/2 = 16 16/2 = 8 8/2 = 4 4/2 = 2 2/2 = 1 1/2 = 0

remainder remainder remainder remainder remainder remainder remainder remainder remainder remainder

0 0 0 0 0 0 0 0 0 1

BIT 0 BIT 1 BIT 2 BIT 3 BIT 4 BIT 5 BIT 6 BIT 7 BIT 8 BIT 9

The BINARY equivalent of 512 is 0010 0000 0000

EGR VALVE CONTROLLER STATES: EGA_Control_State State Alpha Value Closed_Loop CLOSLOOP Zero_Hold ZEROHOLD User_Override USEROVER Diagnostic_PWM_Override DIAGOVER PWM_Disabled PWMDISAB

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87/2 = 43 43/2 = 21 21/2 = 10 10/2 = 5 5/2 = 2 2/2 = 1 1/2 = 0

remainder remainder remainder remainder remainder remainder remainder

1 1 1 0 1 0 1

BIT 0 BIT 1 BIT 2 BIT 3 BIT 4 BIT 5 BIT 6

The BINARY equivalent of 87 is 0101 0111

Enumeration 0 1 2 3 4

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Page 72

CM870 COMMON APPROACH TO CONTROL SYSTEM DIAGNOSTICS ENGINE SOI TIMING COMMAND ENGINEERING STATES: Final_Timing_State SOI_State CBA_SOI_State State Alpha Value Four_D_Timing_State FOUR_D Wet_Stack_Timing WETSTACK User_Commanded_Timing USERCOMD ANC_Timing ANC Max_Timing MAX Crank_Advance CRANK E_Brake_Timing ENGBRAKE User_Override_Timing USEROVRD Stopped_Timing STOP Overspeed_Timing OVERSPED Shutdown_Timing SHUTDOWN Misfire_Timing_Limit MISFIRE MS_Override_Timing MSOVRIDE Wet_Stack_Coolant_Timing WTSTCOOL Coolant_SOI_Advance_State COOL_SOI IMT_SOI_Advance_State IMT_SOI Ambient_Air_Pressure_SOI_Advance_State AMB_SOI CBR_SOI_Ref_State CBR_SOI E_Brake_Timing_State EBRAKETM Max_Timing_State MAXTMST Min_Timing_State MINTMST Final_Timing_Incr_State State Timing_Incr_4_D Timing_Incr_Coolant_Adv AFC Timing Incr Timing_Incr_Cylinder_Press User Incr Mask CBO_Adjust OFC_Alpha0_Incr Timing Incr Coolant Timing

Alpha Value [NOT USED] [NOT USED] AFC_INCR CYL_INCR USER_INCR CBO_ADJ OFC_INCR COOL_INCR

HSG REFERENCE SPEED STATES: HSG_Ref_Speed_State State HSG_Injector_Fault_State HSG_Zero_VSS_State HSG_ANC_Derate_State HSG_VSS_Tamper_State HSG_Engine_Protection_State HSG_Breakpoint_State HSG_FSS_Derate_State HSG_Jcomm_Override_State HSG_Jcomm_Limit_State HSG_TSG_Default_Engine_Speed_State HSG_PTO_Throttle_Override_State HSG_Alt_Breakpoint_State

Alpha Value INJ_FAULT ZERO_VSS ANC_DER VSS_TAMP ENG_PROT BREAKPOINT FSS_DER JCOMM_OVR JCOMM_LIM TSG_DEF PTO_THROT ALT_BREAKPT

HSG_Active_Isochronous_Speed_State HSG_Indicated_Isochronous_Speed_State State Alpha Value HSG_Iso_State ISOCHRONOUS HSG_Iso_Switched_Max_Op_Speed SWITCHED_ISO HSG_Iso_Zero_VSS ZERO_VSS HSG_Iso_SM_State SHIFT_MNGR

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Enumeration 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20

Enumeration 0 1 2 3 4 5 6 7

Enumeration 1 2 3 4 5 6 7 8 9 10 11 12

Enumeration 0 1 2 3

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CM870 COMMON APPROACH TO CONTROL SYSTEM DIAGNOSTICS A/D SENSOR STATUS INFORMATION: Air_Press_Status Battery_Volt_Status Charge_Press_Status Charge_Tmptr_Status Compressor_Inlet_Tmptr_Status Coolant_Lvl_Status Coolant_Tmptr_Status ECM_Internal_Tmptr_Status State GOOD OOR_SUSPECT OOR_FAILED AP_SUSPECT AP_FAILED IR_SUSPECT IR_FAILED EST_SUSPECT EST_FAILED

EGR_Delta_Press_Status EGR_Orifice_Tmptr_Status EGR_Position_Status Exhaust_Press_Status Fuel_Rail_Press_Status Fuel_Tmptr_Status OEM_Ambient_Air_Tmptr_Status Oil_Press_Status Alpha Value Decimal Value GOOD 0 OS 1 OF 2 AS 4 AF 8 IS 16 IF 32 ES 64 EF 128

SENSOR ESTIMATION STATUS INFORMATION: Charge_Press_EStat Exhaust_Press_Estat Charge_Tmptr_EStat Turbo_Speed_EStat State Alpha Value Decimal Value GOOD GOOD 0 OOR_SUSPECT OS 1 OOR_FAILED OF 2 AP_SUSPECT AS 4 AP_FAILED AF 8 IR_SUSPECT IS 16 IR_FAILED IF 32 EST_SUSPECT ES 64 EST_FAILED EF 128 A/D SENSOR SOURCE INFORMATION: Air_Press_Source Battery_Volt_Source Charge_Press_Source Charge_Press_Gauge_Source Charge_Tmptr_Source Compressor_Inlet_Tmptr_Source Coolant_Lvl_Source Coolant_Tmptr_Source State SENSOR_PRIMARY SENSOR_BACKUP SENSOR_DEFAULT

ECM_Internal_Tmptr_Source EGR_Delta_Press_Source EGR_Orifice_Tmptr_Source EGR_Position_Source Exhaust_Press_Source Fuel_Rail_Press_Source Fuel_Tmptr_Source OEM_Ambient_Air_Tmptr_Source Alpha Value Decimal Value PRIMARY 0 BACKUP 1 DEFAULT 2

VIRTUAL SENSOR SOURCE INFORMATION: Altitude_Source Compressor_Inlet_Density_Source Ambient_Air_Press_Source Compressor_Inlet_Press_Source Ambient_Air_Tmptr_Source Compressor_Outlet_Tmptr_Source Charge_Flow_Source EGR_Flow_Source Charge_Saturation_Tmptr_Source State Alpha Value Decimal Value SENSOR_PRIMARY PRIMARY 0 SENSOR_BACKUP BACKUP 1 SENSOR_DEFAULT DEFAULT 2

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Oil_Tmptr_Status Remote_Throt_Status Sampled_Throt_Status Supply_1_Volt_Status Supply_2_Volt_Status Turbo_Speed_Status WIF_Status Bit Mask 0 1 2 3 4 5 6 7 8

Bit Mask 0 1 2 3 4 5 6 7 8

Oil_Press_Absolute_Source Oil_Press_Source Oil_Tmptr_Source Remote_Throt_Source Sampled_Throt_Source Turbo_Speed_Source WIF_Source Bit Mask 0 1 2

EGR_Valve_Delta_Press_Source Engine_Delta_Press_Source Exhaust_Saturation_Tmptr_Source Fresh_Air_Flow_Source Bit Mask 0 1 2

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CM870 COMMON APPROACH TO CONTROL SYSTEM DIAGNOSTICS A/D SENSOR STATE INFORMATION: Air_Press_State Battery_Volt_State Charge_Press_State Charge_Tmptr_State Compressor_Inlet_Tmptr_State Coolant_Lvl_State Coolant_Tmptr_State ECM_Internal_Tmptr_State State GOOD OOR_SUSPECT OOR_FAILED AP_SUSPECT AP_FAILED IR_SUSPECT IR_FAILED EST_SUSPECT EST_FAILED

EGR_Delta_Press_State EGR_Orifice_Tmptr_State EGR_Position_State Exhaust_Press_State Fuel_Rail_Press_State Fuel_Tmptr_State OEM_Ambient_Air_Tmptr_State Oil_Press_State Alpha Value Decimal Value GOOD 0 OS 1 OF 2 AS 4 AF 8 IS 16 IF 32 ES 64 EF 128

ENGINE SPEED PROCESSING (EPS) STATES: EPS_Sensor_Select State Alpha Value Main_EPS MAIN Backup_EPS BACKUP

Enumeration 0 1

EPS_Main_Synch_State EPS_Backup_Synch_State State EPS_No_Pulse EPS_Have_Sync EPS_No_Sync EPS_Start_Sync

Alpha Value NO_PULSE HAVE NO_SYNC START

Enumeration 0 1 2 3

EPS_Status State EPS_Stopped EPS_Degraded EPS_Healthy EPS_Failed

Alpha Value STOPPED DEGRADED HEALTHY FAILED

Enumeration 0 1 2 3

EPS_Cam_Cycle_State State Unknown No_Cam Known

Alpha Value UNKNOWN NO_CAM KNOWN

Enumeration 0 1 2

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CM870 COMMON APPROACH TO CONTROL SYSTEM DIAGNOSTICS VEHICLE SPEED SENSOR STATES: RSC_Sensor_Type State Alpha Value None NONE Inductive INDUCTIVE Mini_Gen MINIGEN Tachograph TACH Datalink_Tailshaft_Speed DL_W_GR OOG Unused UNUSED J1939 Tachometer 1939TACH VSS_Transmission State Manual_Transmission Automatic_Transmission Fully_Automated_Manual_Transmission Partially_Automated_Manual_Transmission Automated_Transmission_No_Clutch VSS_Tamper_State State VSS_No_Tampering VSS_Disconnected_Stop VSS_Disconnected_Moving VSS_Const_Signal_State VSS_Noise_Signal_State VSS_Scaled_Signal_State VSS_Idle_Shutdown_State

Enumeration 0 1 2 3 4 5 6

Alpha Value MANUAL AUTOMATIC FULL_AMT PARTIAL_AMT AMT_NO_CLUTCH

Alpha Value NO_TAMPR DISCON_STP DISCON_MOV CONSTANT NOISE SCALED IDLE_SD

Enumeration 0 1 2 3 4 5 6

GEAR DOWN / OUT OF GEAR PROTECTION STATES: GD_State State Alpha Value GD_Reset_State RESET GD_High_Load_State HI_LOAD GD_Wait_For_Filter_State WAIT GD_Preset_Ramp_State PRESET GD_Low_Load_State LOW_LOAD GD_Top_Gear_State TOP_GEAR GD_Decel_State DECEL

Enumeration 1 2 3 4 5 6 7

Gear_Down_Active State GDA_Top_Gear GDA_Gear_Down GDA_In_A_Low_Gear

Alpha Value TOP_GEAR GEAR_DWN LOW_GEAR

Enumeration 0 1 2

Out_Of_Gear_Protection State OOG_Steady_State_Inactive OOG_Steady_State_Active OOG_Ramping_Up OOG_Ramping_Down

Alpha Value SS_INACTIVE SS_ACTIVE RAMP_UP RAMP_DOWN

Enumeration 0 1 2 3

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Enumeration 0 1 2 3 4

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CM870 COMMON APPROACH TO CONTROL SYSTEM DIAGNOSTICS CRUISE CONTROL STATES: Cruise_Command_Mode State CC_Off Set Resume Coast Accel Bump_Down Bump_Up CC_Hold Cancel VORAD Headway

Alpha Value OFF SET RESUME COAST ACCEL BUMPDWN BUMPUP HOLD CANCEL HEADWAY

Enumeration 0 1 2 3 4 5 6 7 8 9

J1939_Cruise_Command_Mode State Cruise Off Cruise Hold Cruise Accelerate Cruise Decelerate Cruise Resume Cruise Set Cruise Accel Override Cruise Not Available

Alpha Value OFF HOLD ACCEL DECEL RESUME SET ACOVRRIDE NOT_AVAIL

Enumeration 0 1 2 3 4 5 6 7

Cruise_Control_AR_Flag State AR_Inactive AR_Active AR_Pre_Active AR_Resume AR_After_Test

Alpha Value INACTIVE ACTIVE PRE_ACTIVE RESUME AFTER_TEST

Enumeration 0 1 2 3 4

Adaptive_Cruise_Control_Mode State No Cruise Control Normal Cruise Control VORAD Headway Cruise

Alpha Value NO_CRUISE NORMAL_CRUISE HEADWAY_CRUISE

Enumeration 0 1 2

ENGINE BRAKES STATES: E_Brake_Command_Source State Not_Commanded JCOMM_Over_Ride Cruise_Control Switch_Input JCOMM_Limit Source_Not_Set No_Override Hydraulic_Retarder_Cmd Powertrain_Protection EGR_Protection

Alpha Value NONE JCOMMOVD CRUISE SWITCH JCOMMLMT NOT_SET NOOVERDE HYD_RTDR PTP EGR_PROT

Enumeration 0 1 2 3 4 5 6 7 8 9

EB_Allowed_State State No_Ebrakes Override_Only Override_Or_Non_Override

Alpha Value NONE OVERRIDE OVER_OR_NON

Enumeration 0 1 2

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CM870 COMMON APPROACH TO CONTROL SYSTEM DIAGNOSTICS Engine_Brake_Jcomm_Device_Indicator Jcomm_Retarder_Control_Device_Indicator State Alpha Value No_Device NODEVICE Transmission_Control TRANSMIS ABS_Control ABS ASR_Control ASR Unknown_Control UNKNOWN PTO_Control PTO VORAD Headway_Control HEADWAY

Enumeration 0 1 2 3 4 5 6

ENGINE BRAKES STATES / JCOMM RETARDER: Jcomm_Retarder_Control_Mode State Alpha Value Retarder_Override_Disabled DISABLE Retarder_Torque_Control TORQUE Limit_Retarder LIMIT

Enumeration 0 2 3

Jcomm_Retarder_Control_Mode_Test_Point State Alpha Value Retarder_Override_Disable_Test OVR_DSBL No_Retarder_Test NO_TEST Retarder_Torque_Control_Test TRQ_CNTL Limit_Retarder_Test LIM_RTRD

Enumeration 0 1 2 3

BRAKE SWITCH STATES: Valid_Brake_Switch State Brake_Inactive Brake_Active Brake_Invalid_Inactive Brake_Invalid_Active

Alpha Value OFF ON STUCK_OFF STUCK_ON

Enumeration 0 1 2 3

ACCELERATOR PEDAL STATES: Accelerator_Pedal_State State Fully_Released Partially_Depressed Fully_Depressed

Alpha Value RELEASE PART_DEP FULL_DEP

Enumeration 0 1 2

IDLE SHUTDOWN STATES: Idle_Shutdown_State State Reset Count Warning Delay Overridden Shutdown

Alpha Value RESET COUNT WARNING DELAY OVERRIDE SHUTDOWN

Enumeration 0 1 2 3 4 5

POWER TAKE-OFF (PTO) STATES: PTO_State State Remote_Count Remote_Run Wait Normal_PTO

Alpha Value REMOTE_COUNT REMOTE_RUN WAIT NORMAL

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Enumeration 0 1 2 3

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CM870 COMMON APPROACH TO CONTROL SYSTEM DIAGNOSTICS J1939_PTO_State State Off Hold Remote_Hold Decelerate Accelerate Accelerate_Override Preprogrammed_Set_Speed_1 Preprogrammed_Set_Speed_2 Preprogrammed_Set_Speed_3 Preprogrammed_Set_Speed_4 Preprogrammed_Set_Speed_5 Preprogrammed_Set_Speed_6 Preprogrammed_Set_Speed_7 Preprogrammed_Set_Speed_8

Alpha Value OFF HOLD REM_HOLD DECEL ACCEL ACCEL_OV PROGSPD1 PROGSPD2 PROGSPD3 PROGSPD4 PROGSPD5 PROGSPD6 PROGSPD7 PROGSPD8

Enumeration 0 1 2 6 8 9 10 11 12 13 14 15 16 17

FAN CONTROL STATES: Fan_Drive_State State Fan_Drive_Off Fan_Drive_General_Engine Fan_Drive_IMT_Cooling Fan_Drive_OT_Cooling Fan_Drive_CT_Cooling Undefined Undefined Undefined Undefined Fan_Drive_Manual_Switch Undefined Fan_Drive_AC_Switch Fan_Drive_IMT_Timer Fan_Drive_Loading Fan_Drive_Other Fan_Drive_J1939_Not_Available Fan_Drive_Misc Fan_Drive_Tool Fan_Drive_Datalink Fan_Drive_OEM_Pressure Fan_Drive_OEM_Temperature Fan_Drive_Fuel_Temperature

Alpha Value OFF ENGINE IMT_COOL OT_COOL CT_COOL UNUSE5 UNUSE6 UNUSE7 UNUSE8 MANUAL NOCODE AC_SWITCH IMT_TIME LOADING OTHER JNOT_AVL MISC TOOL DATALINK OEMPRES OEMTEMP FUELTEMP

Enumeration 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21

Fan_Clutch_1_Type State On_Off Active High / Low Variable

Alpha Value ON_OFF HIGH_LOW_OFF VARIABLE

Enumeration 0 1 2

Fan_Clutch_Logic State Active_High (12V FAN ON) Active_Low (12V FAN OFF)

Alpha Value FALSE TRUE

Enumeration 0 1

Fan_Clutch_Status State Fan_Clutch_Off Fan_Clutch_On Fan_Clutch_Active_Low Fan_Clutch_Active_High

Alpha Value FC_OFF FC_ON FC_LOW FC_HIGH

Enumeration 0 1 2 3

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CM870 COMMON APPROACH TO CONTROL SYSTEM DIAGNOSTICS POWERTRAIN STATES: Powertrain_State State Not_Set Fueling_Jcomm_Torque_State Fueling_Jcomm_Speed_State Fueling_Jcomm_Torque_Derate_State

Alpha Value NOT_SET JCOMTORQ JCOMSPED JCTRQDER

Enumeration 0 1 2 3

DRIVER REWARD STATES: DR_CC_RSG_Both_Option State DR_Type_RSG DR_Type_CC DR_Type_Both

Alpha Value RSG CRUISE BOTH

Enumeration 0 1 2

DR_Reward_State State DR_State_None DR_State_1 DR_State_2 DR_State_3 DR_State_4

Alpha Value NONE DR_STAT1 DR_STAT2 DR_STAT3 DR_STAT4

Enumeration 0 1 2 3 4

ENGINE START STATES: ES_State State Aborted Begin Proceed OK_To_Autostart Started ES_Wait Key_Switch_Off OK_To_Manual_Start Alarm_Delay

Alpha Value ABORT BEGIN PROCEED AUTO_OK STARTED ES_WAIT KEYSWOFF MANUAL_OK ALARM

Enumeration 0 1 2 3 4 5 6 7 8

ENGINE DATA FILES: EDF_Coolant_Temp_Abuse_Type EDF_Engine_Ovrspd_Abuse_Type EDF_IMT_Abuse_Type EDF_Oil_Pres_Abuse_Type State EDF_No_Source EDF_Discrete_Source EDF_Analog_Source EDF_Error_Source

EDF_Oil_Temp_Abuse_Type EDF_Coolant_Pres_Abuse_Type EDF_Coolant_Lvl_Abuse_Type EDF_Blowby_Pres_Abuse_Type Alpha Value Enumeration NONE 0 DISCRETE 1 ANALOG 2 ERROR 3

EDF_Coolant_Temp_Abuse_Min_Or_Max EDF_Engine_Ovrspd_Abuse_Min_Or_Max EDF_IMT_Abuse_Min_Or_Max EDF_Oil_Pres_Abuse_Min_Or_Max State EDF_Max EDF_Min

EDF_Oil_Temp_Abuse_Min_Or_Max EDF_Coolant_Pres_Abuse_Min_Or_Max EDF_Coolant_Lvl_Abuse_Min_Or_Max EDF_Blowby_Pres_Abuse_Min_Or_Max Alpha Value Enumeration MAX 0 MIN 1

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CM870 COMMON APPROACH TO CONTROL SYSTEM DIAGNOSTICS ANTI-THEFT STATES: Anti_Theft_State State Unlocked_While_Stopped Locked_While_Running Unlocked_While_Running Tampered_With_Vehicle Locked_While_Stoppped

Alpha Value STOP_UNLOCK RUN_LOCK RUN_UNLOCK TAMPER STOP_LOCK

Enumeration 0 1 2 3 4

AT_Password_State State No_Entry Good_Entry Bad_Entry

Alpha Value NO_ENTRY GOOD_ENTRY BAD_ENTRY

Enumeration 0 1 2

AT_Engine_Lock_State AT_Engine_Lock_State_Request State Unlocked Locked

Alpha Value FALSE TRUE

Enumeration 0 1

JCOMM ANTI-THEFT STATES: Jcomm_AT_Command_State State Add_Password Delete_Password Change_Password Lock_Or_Unlock Check_Status Login Idle_State IBZ_Idle_State

Alpha Value ADD_PASSWD DEL_PASSWD CHG_PASSWD LOCK_UNLOCK CHECK LOGIN IDLE IBZ_IDLE

Enumeration 0 1 2 3 4 5 6 7

Jcomm_AT_Component_Status State Unlocked Locked Blocked

Alpha Value UNLOCK LOCK BLOCK

Enumeration 0 1 2

Jcomm_AT_Desired_Exit_Mode State Lock_Upon_Operator_Request Lock_When_Key_Off Not_Available

Alpha Value LOCK_RQST LOCK_KEYOFF NOT_AVAIL

Enumeration 0 1 2

Jcomm_AT_Encryption_Indicator State Encryption_Seed_Request Encryption_Password_Present Indicator_Not_Available

Alpha Value REQUEST PRESENT NOT_AVAIL

Enumeration 0 1 2

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CM870 COMMON APPROACH TO CONTROL SYSTEM DIAGNOSTICS TRIP INFORMATION STATES: Trip_Info_State State TI_EPF_Derate TI_Air_Compressor TI_Battery_Auto_Start TI_Block_Auto_Start TI_Bunk_Auto_Start TI_Engine_ESP TI_Driver_Reward_1 TI_Driver_Reward_2 TI_Driver_Reward_3 TI_Vehicle_ESP TI_Fan_Due_To_Ext TI_Fan_Due_To_AC TI_Fan_Due_To_Engine TI_Fan_1_With_MPH TI_Fan_1_Without_MPH TI_Vehicle_Out_Of_Gear TI_Engine_Drive TI_Engine_Idle TI_Fast_Engine_Idle TI_Engine_PTO TI_Hot_Shutdown TI_Warmup_Violation TI_Idle_Shutdown TI_Idle_Shutdown_Override TI_Engine_Revving TI_Engine_Overrev TI_Vehicle_Drive TI_Vehicle_PTO TI_Cruise TI_RSG TI_Vehicle_Coast TI_Vehicle_Above_Sweet_Spot TI_Vehicle_Below_Sweet_Spot TI_Vehicle_Brake TI_Top_Gear TI_Gear_Down TI_Engine_Brakes TI_Vehicle_Overspeed_1 TI_Vehicle_Overspeed_2 TI_Vehicle_Deceleration TI_ECM TI_Fan_2_On TI_Engine_On TI_Vehicle_PTO_Loaded_And_Not_Moving TI_Vehicle_PTO_Loaded_And_Moving TI_Auto_Start TI_Engine_Sleep_Idle Unused

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Alpha Value EPF_DER AIR_COMP BATT_AS BLOCK_AS BUNK_AS ENG_ESP DR_1 DR_2 DR_3 VEH_ESP FAN_EXT FAN_AC FAN_ENG FAN_1_MPH FAN_1_NOMPH VEH_OOG ENG_DRIVE ENG_IDLE FAST_ENG_IDLE ENG_PTO HOT_SD WARM_VIOL IDLE_SD IDLE_SD_OVR ENG_REV ENG_OVERREV VEH_DRIVE VEH_PTO CRUISE RSG VEH_COAST ABV_SWSP BEL_SWSP VEH_BRAKE TOP_GEAR GEAR_DWN E_BRAKE VEH_OS_1 VEH_OS_2 VEH_DEC ECM FAN_2_ON ENG_ON PTO_NO_VSS PTO_VSS AUTO_STRT ENG_SLEP_IDLE UNUSED

Enumeration 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47

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CM870 COMMON APPROACH TO CONTROL SYSTEM DIAGNOSTICS SYSTEM SWITCH STATUS: System_Switch_Status [SSSWSS01] Switch Keyswitch Test_Switch Increment_Switch Decrement_Switch Cruise_Control_On_Switch Cruise_Control_Set_Switch Cruise_Control_Resume_Switch PTO_On_Switch PTO_Set_Switch PTO_Resume_Switch Brake_Switch Clutch_Switch Engine_Brake_Select_1 Engine_Brake_Select_2 Engine_Brake_Select_3 Manual_Fan_Input

1 = SWITCH ACTIVE 0 = SWITCH NOT ACTIVE 0000 = 0 0001 = 1 1000 = 8 1001 = 9

0010 = 2 1010 = A 1 0 0 0

S w it c h S w it c h S w it c h S w it c h S w it c h S w it c h S w it c h S w it c h

System_Switch_Status_2 [SSSWSS02] Switch Air_Conditioner_Pressure_Switch Idle_Switch Not_Idle_Switch Remote_Throttle_Switch Remote_PTO_Switch PTP_Switched_Input Accelerator_Interlock_Switch EPF_Shutdown_Override_Switch STCG_ASG_Droop_Switch Remote_Oil_Switch Sensor_Supply_Monitor_A Rear_Axle_Ratio_Switch HSG_Droop_Select_Switch Unused Unused Unused

BIT # 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

0011 = 3 1011 = B

8

3

0100 = 4 1100 = C

0101 = 5 1101 = D

0110 = 6 1110 = E

BIT # 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

0111 = 7 1111 = F

0 0 1 1

7 6 5 4 3 2 1 0

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CM870 COMMON APPROACH TO CONTROL SYSTEM DIAGNOSTICS CM870 FAULT CODE LIST FAULT CODE 111

Diag_hdd02.doc REV 52

122

SYSTEM ERROR PARAMETER NAME Powerdown_EEPROM_Checksum_Error OR RAM_Image_Word_Error ISM’02: Engine Speed/Position Sensor Circuit – lost both of two signals from MS_EPS_Both_Coils_Shorted_Or_Open_Error the magnetic pickup sensor ISM’02: Engine Speed/Position Sensor Circuit – lost one of two signals from MS_EPS_Main_Or_Backup_Channel_Lost_Error OR the magnetic pickup sensor MS_EPS_Coil_Shorted_Or_Open_Error Boost Pressure Sensor Circuit - shorted high.

Boost_Pressure_Absolute_High_Error

Boost_Pressure_Absolute_High_Limit

123

Boost Pressure Sensor Circuit - shorted low.

Boost_Pressure_Absolute_Low_Limit

131

Accelerator Pedal Position Sensor Circuit - shorted high.

Sampled_Throttle_High_Error

Sampled_Throttle_High_Limit

132

Accelerator Pedal Position Sensor Circuit - shorted low.

Sampled_Throttle_Low_Error

Sampled_Throttle_Low_Limit

133

Remote Throttle Pedal Position Sensor Circuit - shorted high.

RT_High_Error

Remote_Throttle_High_Error

134

Remote Throttle Pedal Position Sensor Circuit - shorted low.

RT_Low_Error

Remote_Throttle_Low_Error

135

Oil Pressure Sensor Circuit - shorted high.

Oil_Pressure_High_Postprocessed_Error

Oil_Pressure_Absolute_High_Limit

141

Oil Pressure Sensor Circuit - shorted low.

Oil_Pressure_Absoute_Low_Error

Oil_Pressure_Absolute_Low_Limit

143

Oil Pressure - data below normal range.

Oil_Pressure_Torque_Error

Oil Pressure Engine Protection

144

Coolant Temperature Sensor Circuit – shorted high.

Coolant_Temperature_High_Error

Coolant_Temperature_High_Limit

145

Coolant Temperature Sensor Circuit – shorted low.

Coolant_Temperature_Low_Error

Coolant_Temperature_Low_Limit

151

Coolant Temperature - data above normal range.

Coolant_Temperature_RPM_Error

Coolant Temperature Engine Protection

153

Intake Manifold Temperature Sensor Circuit - shorted high.

Intake_Manifold_Temperature_Sensor_High_Error

Intake_Manifold_Temperature_Sensor_High_Limit

154

Intake Manifold Temperature Sensor Circuit - shorted low.

Intake_Manifold_Temperature_Sensor_Low_Error

Intake_Manifold_Temperature_Sensor_Low_Limit

155

Intake Manifold Temperature - data above normal range. Critical.

IMT_RPM_Error

IMT Engine Protection

185

J1939 Master / Slave Communications Error – Loss of Communications

J1939_Master_Slave_Comm_Lost_Error

J1939 Master / Slave Communication Error

187

Sensor Supply 2 Voltage Circuit - shorted low.

Sensor_Supply_2_Voltage_Low_Error

Sensor_Supply_2_Voltage_Low_Limit

195

Coolant Level Sensor Circuit - shorted high.

T_Coolant_Level_High_Error

Coolant_Level_High_Limit

196

Coolant Level Sensor Circuit - shorted low.

T_Coolant_Level_Low_Error

Coolant_Level_Low_Limit

197

Coolant Level Low – warning.

CLS_Low_Coolant_Error

Coolant Level Engine Protection

115 121

DESCRIPTION OF FAULT Engine Control Module - critical internal failure

Boost_Pressure_Absolute_Low_Error

CAUSED BY: LIMIT OR FAULT CONDITION Write Error to Flash / EEPROM Data Difference between RAM versus Flash/EEPROM Both VR Sensor Circuits open or shorted One of the VR Sensor Circuits open or shorted

212

Oil Temperature Sensor Circuit - shorted high.

Oil_Temperature_High_Error

Oil_Temperature_High_Limit

213

Oil Temperature Sensor Circuit - shorted low.

Oil_Temperature_Low_Error

Oil_Temperature_Low_Limit

214

Oil Temperature - data above normal range.

Oil Temperature Engine Protection

219

CORS Oil Level Low - Warning

Oil_Temperature_Torque_Error OR Oil_Temperature_RPM_Error CORS_Remote_Oil_Level_Low_Error

221

Ambient Air Pressure Sensor Circuit – shorted high.

Air_Pressure_Sensor_High_Error

222

Ambient Air Pressure Sensor Circuit – shorted low.

Air_Pressure_Sensor_Low_Error

Air_Pressure_Sensor_Low_Limit

223

Oil Burn Valve Solenoid – shorted high

T_CORS_Burn_Valve_Driver_PWM_Low_Control_Error

CORS PWM Output Driver Shorted HIGH

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CM870 COMMON APPROACH TO CONTROL SYSTEM DIAGNOSTICS Diag_hdd02.doc REV 52

FAULT CODE 224

DESCRIPTION OF FAULT Oil Burn Valve Solenoid – shorted low

SYSTEM ERROR PARAMETER NAME T_CORS_Burn_Valve_Driver_PWM_High_Control_Error

CAUSED BY: LIMIT OR FAULT CONDITION CORS PWM Output Driver Shorted LOW

227

Sensor Supply 2 Voltage Circuit - shorted low.

Sensor_Supply_2_Voltage_High_Error

Sensor_Supply_2_Voltage_High_Limit

234

ENF’02: Engine Speed - data above normal range.

ES_Overspeed_Error

CM870 - Engine_Overspeed_Limit = 2650 RPM

234

ISM’02: Engine Speed - data above normal range.

MS_ES_Overspeed_Error

CM570 - FSOSLMES = 2650 RPM

241

Vehicle Speed Sensor Circuit - data incorrect.

VSS_Signal_Lost_Error

J1939 Tailshaft Speed Lost

242

Vehicle Speed Sensor Circuit - tampering detected.

VSS_Tampering_Error

VSS_IS_Tamper_Time

245

Fan Clutch Circuit - shorted low.

T_Fan_Clutch_1_PWM_High_Control_Error

Fan Clutch PWM Output Driver Shorted LOW

249

Ambient Air Temperature Sensor Circuit – shorted high.

T_OEM_Ambient_Air_Temperature_High_Error

Ambient_Air_Temperature_High_Limit

254

ENF’02: Fuel Shutoff Valve Circuit – shorted low.

FSO_PWM_High_Control_Error

Electrical Failure of FSO actuator / actuator driver

254

ISM’02: Fuel Shutoff Valve Circuit – shorted low.

MS_FSO_PWM_High_Control_Error

Electrical Failure of FSO actuator / actuator driver.

255

ENF’02: Fuel Shutoff Valve Circuit – shorted high.

FSO_PWM_Low_Control_Error

Electrical Failure of FSO actuator / actuator driver

255

ISM’02: Fuel Shutoff Valve Circuit – shorted high.

MS_FSO_PWM_Low_Control_Error

Electrical Failure of FSO actuator / actuator driver

256

Ambient Air Temperature Sensor Circuit – shorted low.

T_OEM_Ambient_Air_Temperature_Low_Error

Ambient_Air_Temperature_Low_Limit

259

ENF’02: Fuel Shutoff Valve – stuck open.

FSO_Stuck_Open_Error

FSOV - Fuel Pressure does not drop in gallery

259

ISM’02: Fuel Shutoff Valve – stuck open.

MS_FSO_Stuck_Open_Error

FSOV stuck mechanically open

263

Fuel Temperature Sensor Circuit – shorted high

Fuel_Temperature_High_Error

Fuel_Temperature_High_Limit

265

Fuel Temperature Sensor Circuit – shorted low

Fuel_Temperature_Low_Error

Fuel_Temperature_Low_Limit

284

Engine Speed Sensor Supply Voltage – data below normal range.

Engine_Speed_Sensor_SV_Low_Error

Sensor_Supply_Monitor_A = OFF

285

SAE J1939 Multiplexing – PGN timeout error.

J1939_Mux_PGN_Timeout_Error

J1939 MUX Time-Out / Loss Of Communications

286

SAE J1939 Multiplexing – configuration error.

J1939_Mux_Configuration_Error

J1939 MUX Configuration

287

SAE J1939 Multiplexing – accelerator pedal sensor system (APS) system error J1939_Mux_APS_System_Error

J1939 MUX Accel Throttle Pedal Sensor Error

288

SAE J1939 Multiplexing – remote throttle data error.

J1939_Mux_Remote_Throttle_Data_Error

J1939 MUX Remote Throttle Error

295

Ambient Air Pressure – data incorrect.

Air_Pressure_Keyon_Error

Key-On Pressure In-Range Check

311

ISM’02: Injector Solenoid Valve Cyl #1 Circuit – Grounded Circuit

MS_Act1_FF_Shorted_HS_To_LS_Error

312

ISM’02: Injector Solenoid Valve Cyl #5 Circuit – Grounded Circuit

MS_Act5_Shorted_HS_To_LS_Error

313

ISM’02: Injector Solenoid Valve Cyl #3 Circuit – Grounded Circuit

MS_Act3_RF_Shorted_HS_To_LS_Error

314

ISM’02: Injector Solenoid Valve Cyl #6 Circuit – Grounded Circuit

MS_Act6_Shorted_HS_To_LS_Error

315

ISM’02: Injector Solenoid Valve Cyl #2 Circuit – Grounded Circuit

MS_Act2_FT_Shorted_HS_To_LS_Error

319

Real Time Clock - power interrupt.

RTC_Power_Interrupt_Error

Injector Solenoid Valve Cyl #1 Shorted High Side to Low Side Injector Solenoid Valve Cyl #5 Shorted High Side to Low Side Injector Solenoid Valve Cyl #1 Shorted High Side to Low Side Injector Solenoid Valve Cyl #1 Shorted High Side to Low Side Injector Solenoid Valve Cyl #1 Shorted High Side to Low Side RTC_Power_Interrupt_Error_Inhibit = FALSE

321

ISM’02: Injector Solenoid Valve Cyl #4 Circuit – Grounded Circuit

MS_Act4_FT_Shorted_HS_To_LS_Error

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Injector Solenoid Valve Cyl #1 Shorted High Side to Low Side

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CM870 COMMON APPROACH TO CONTROL SYSTEM DIAGNOSTICS Diag_hdd02.doc REV 52

FAULT CODE 322

DESCRIPTION OF FAULT ISM’02: Injector Solenoid Valve Cyl #1 Circuit – Open Circuit

SYSTEM ERROR PARAMETER NAME MS_Act1_Misc_Error

CAUSED BY: LIMIT OR FAULT CONDITION Injector Solenoid Valve Cyl#1 Open Circuit

323

ISM’02: Injector Solenoid Valve Cyl #5 Circuit – Open Circuit

MS_Act5_Misc_Error

Injector Solenoid Valve Cyl#5 Open Circuit

324

ISM’02: Injector Solenoid Valve Cyl #3 Circuit – Open Circuit

MS_Act3_Misc_Error

Injector Solenoid Valve Cyl#3 Open Circuit

325

ISM’02: Injector Solenoid Valve Cyl #6 Circuit – Open Circuit

MS_Act6_Misc_Error

Injector Solenoid Valve Cyl#6 Open Circuit

331

ISM’02: Injector Solenoid Valve Cyl #2 Circuit – Open Circuit

MS_Act2_Misc_Error

Injector Solenoid Valve Cyl#2 Open Circuit

332

ISM’02: Injector Solenoid Valve Cyl #4 Circuit – Open Circuit

MS_Act4_Misc_Error

Injector Solenoid Valve Cyl#4 Open Circuit

338

Idle Shutdown Vehicle Accessories Relay Driver – shorted high.

T_Idle_Shutdown_Driver_PWM_Low_Control_Error

Idle Shutdown PWM Output Driver Shorted HIGH

339

Idle Shutdown Vehicle Accessories Relay Driver – shorted low.

T_Idle_Shutdown_Driver_PWM_High_Control_Error Idle Shutdown PWM Output Driver Shorted LOW

341

Engine Control Module – data lost.

All_Powerdown_Data_Lost_Error

343

Engine Control Module – warning internal hardware failure.

Poweroff_Command_Ignored_Error

Poweroff_Command_Ignored = TRUE

352

Sensor Supply 1 Voltage Circuit - shorted low.

Sensor_Supply_1_Voltage_Low_Error

Sensor_Supply_1_Voltage_Low_Limit

359

Engine Failed to Start.

ES_Auto_Start_Error

ICON Auto Start Error

Invalid Data within Parameter Blocks

386

Sensor Supply 1 Voltage Circuit - shorted high.

Sensor_Supply_1_Voltage_High_Error

Sensor_Supply_1_Voltage_High_Limit

387

Accelerator Pedal Sensor Supply Voltage Circuit – shorted high.

Throttle_Sensor_Supply_Voltage_High_Error

Throttle_Sensor_Supply_Voltage_High_Limit

415

Oil Pressure - data indicates very low oil pressure.

Oil_Pressure_RPM_Error

Oil Pressure Engine Protection

418

Water Detected In Fuel.

Water_In_Fuel_Error

Water_In_Fuel = WATER_IN_FUEL (2)

428

Water In Fuel Sensor Circuit – shorted high.

Water_In_Fuel_Postprocessed_High_Error

Water_In_Fuel_High_Limit

429

Water In Fuel Sensor Circuit – shorted low.

Water_In_Fuel_Postprocessed_Low_Error

Water_In_Fuel_Low_Limit

431

Accelerator Pedal Idle Validation Circuit - data incorrect.

Throttle_Validation_Switch_Low_Error

Idle_Switch and Not_Idle_Switch are ACTIVE

432

Accelerator Pedal Idle Validation Circuit - out of calibration.

Throttle_Validation_Process_Error

Idle_Switch and Not_Idle_Switch Invalid Input

433

Boost Pressure – data incorrect. (In-Range High Error)

Charge_Pressure_Keyon_Error

Key-On Pressure In-Range Check

434

Power Lost Without Ignition Off.

Powerdown_Data_Lost_Error

Power Loss Before Powerdown Data Saved

435

Oil Pressure - data incorrect.

Oil_Pressure_Keyon_Error

Key-On Pressure In-Range Check

443

Accelerator Pedal Sensor Supply Voltage Circuit 0 – shorted low.

Throttle_Sensor_Supply_Voltage_Low_Error

Throttle_Sensor_Supply_Voltage_Low_Limit

449

Fuel Pressure High - warning.

Fuel_Supply_Pressure_High_Error

FPM_lp_HighThreshold_c

482

Fuel Pressure Low - warning.

Fuel_Supply_Pressure_Low_Error

FPM_lp_LowThreshold_c

486

Injector Metering Rail #2 Pressure Low – warning.

Fuel_Error_Rear_Underfuel_Error

Uncontrolled Underfueling in Rear Bank

546

Fuel Delivery Pressure Sensor Circuit – shorted high.

Fuel_Rail_Pressure_High_Error

Fuel_Rail_Pressure_High_Limit

547

Fuel Delivery Pressure Sensor Circuit – shorted low.

Fuel_Rail_Pressure_Low_Error

Fuel_Rail_Pressure_Low_Limit

551

Accelerator Pedal Idle Validation Circuit – shorted low.

Throttle_Validation_Switch_High_Error

Idle_Switch and Not_Idle_Switch are INACTIVE Uncontrolled Underfueling in Front Bank

559

Injector Metering Rail #1 Pressure Low - warning.

Fuel_Error_Front_Underfuel_Error

584

Starter Relay Circuit – shorted high

T_Starter_Lockout_Driver_PWM_Low_Control_Error Starter Relay PWM Driver circuit – shorted HIGH

585

Starter Relay Circuit – shorted low

T_Starter_Lockout_Driver_PWM_High_Control_Error Starter Relay PWM Driver circuit – shorted LOW

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CM870 COMMON APPROACH TO CONTROL SYSTEM DIAGNOSTICS Diag_hdd02.doc REV 52

FAULT CODE 595

DESCRIPTION OF FAULT Turbocharger #1 Speed High - warning.

596 597 598 649

Electrical Charging System Voltage High - warning.

SYSTEM ERROR PARAMETER NAME AH_Fuel_Derate_Latch_Error OR Turbo_Speed_High_Error AFW_High_Voltage_Error

CAUSED BY: LIMIT OR FAULT CONDITION Turbo Speed above set limit: Turbo_Speed_High_Limit AFW_12V[24V]_High_Voltage

Electrical Charging System Voltage Low - warning.

AFW_Low_Voltage_Error

AFW_12V[24V]_Low_Voltage

Electrical Charging System Voltage Low – critical.

AFW_Very_Low_Volts_Error

AFW_12V[24V]_Very_Low_Voltage

Change Lubricating Oil and Filter – maintenance

OCM_Interval_Warning_Error

OCM_Warning_Percent

687

Turbocharger #1 Speed Low - warning.

Turbo_Speed_Low_Error

Turbo_Speed_Low_Limit

689

Crankshaft Engine Speed Sensor Error

Crank EPS – Unstable or no signal detected

691

Compressor Inlet Temperature Sensor Circuit – shorted high

EPS_Main_No_Pulse_Error OR EPS_Main_No_Sync_Error Compressor_Inlet_Temperature_High_Error

692

Compressor Inlet Temperature Sensor Circuit – shorted low

Compressor_Inlet_Temperature_Low_Error

Compressor_Inlet_Temperature_Low_Limit

731

EPS_Phase_Shift_Error

778

Engine Speed/Position #2 - mechanical misalignment between CAM and CRANK sensors.

Camshaft Engine Position Sensor Error

Phase between Cam and Crank EPS has deviated beyond calibration limits Cam EPS – Unstable or non signal detected

784

Adaptive Cruise Control – loss of communication.

EPS_Backup_No_Pulse_Error OR EPS_Backup_No_Sync_Error Adaptive_Cruise_Control_Error

Compressor_Inlet_Temperature_High_Limit

Adaptive Cruise Control (EATON VORAD) Error

951

ENF’02: Power Imbalance Between Cylinders Detected.

CBD_Trim_Limit_Error

CBD can no longer adjust balance to cylinders

951

ISM’02: Power Imbalance Between Cylinders Detected.

MS_CBD_Trim_Limit_Error

CBD can no longer adjust balance to cylinders

957

EGR Valve Position – Position Rate exceeds limit

EGR_Position_Rate_Error

C_EGR_Position_Rate_Thd (7.00%)

2271

Exhaust Gas Recirculation Valve Position Circuit - shorted high.

EGR_Position_Before_Autozero_High_Error

EGR_Position_Before_Autozero_High_Limit

2272

Exhaust Gas Recirculation Valve Position Circuit - shorted low.

EGR_Position_Before_Autozero_Low_Error

EGR_Position_Before_Autozero_Low_Limit

2273

Exhaust Gas Recirculation Valve Delta Pressure - shorted high.

2274

Exhaust Gas Recirculation Valve Delta Pressure - shorted low.

EGR_Delta_P_Sensor_High_Limit EGR_Orifice_Delta_Pressure_High_Limit EGR_Delta_P_Sensor_Low_Limit EGR_Orifice_Delta_Pressure_Low_Limit VG Pneumatic Actuator PWM Output Driver HIGH

2277

Variable Geometry Turbo Output Device Driver – shorted high

EGR_Delta_P_Sensor_High_Error OR EGR_Orifice_Delta_Pressure_High_Error EGR_Delta_P_Sensor_Low_Error OR EGR_Orifice_Delta_Pressure_Low_Error T_VGT_Actuator_Pneumatic_Low_Control_Error

2278

Variable Geometry Turbo Output Device Driver – shorted low

T_VGT_Actuator_Pneumatic_High_Control_Error

VG Pneumatic Actuator PWM Output Driver LOW

2311

Fueling Actuator #1 Circuit – open/grounded

2312

Timing Actuator #1 Circuit – open/grounded

2313

Fueling Actuator #2 Circuit – open/grounded

2314

Timing Actuator #2 Circuit – open/grounded

2321

Primary Engine Speed Sensor Intermittent Error

Front_Fueling_Actuator_Impaired_Error OR Front_Fueling_Actuator_Severe_Error Front_Timing_Actuator_Impaired_Error OR Front_Timing_Actuator_Severe_Error Rear_Fueling_Actuator_Impaired_Error OR Rear_Fueling_Actuator_Severe_Error Rear_Timing_Actuator_Impaired_Error OR Rear_Timing_Actuator_Severe_Error EPS_Main_Intermittent_Sync

Electrical Failure of Front Fueling Actuator / Actuator Driver Electrical Failure of Front Timing Actuator / Actuator Driver Electrical Failure of Rear Fueling Actuator / Actuator Driver Electrical Failure of Rear Timing Actuator / Actuator Driver Main EPS Sensor Intermittent Sync Error

2346

Turbine Inlet Temperature (calc.) – data above normal range.

2347

Compressor Outlet Temperature (calc.) - data above normal range.

Exhaust_Metal_Tmptr_Torque_Error OR Exhaust_Metal_Tmptr_RPM_Error COT_Torque_Error OR COT_RMP_Error

Exhaust Temperature Engine Protection; least severe Compressor Outlet Temperature Engine Protection; Least severe

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FAULT CODE 2348

DESCRIPTION OF FAULT EGR Valve Position – failed automatic calibration procedure (autozero)

SYSTEM ERROR PARAMETER NAME EGR_Valve_Autozero_Error

CAUSED BY: LIMIT OR FAULT CONDITION C_EGR_Position_AZ_Tolerence

2349

EGR Output Circuit – shorted high or open

EGR Valve H-Bridge Circuit Fault

2351

EGR Output Circuit – shorted low

EGA_Fault_HB1A OR EGA_Fault_HB1B EGA_Fault_HB1_OC_HI

2352

EGR Output Circuit – shorted high

EGA_Fault_HB1_OC_LO

EGR Valve H-Bridge Circuit Fault – Overcurrent

2353

EGR Output Circuit – excessive current detected

EGA_Fault_HB1_Inrush

EGR Valve H-Bridge Circuit Fault – High Current

2355

TB Air Shutoff Valve – shorted high

TB_Air_Shutoff_Valve_PWM_Low_Control_Error

VG Air Shutoff Valve PWM Output Driver HIGH

2356

TB Air Shutoff Valve – shorted low

TB_Air_Shutoff_Valve_PWM_High_Control_Error

VG Air Shutoff Valve PWM Output Driver LOW

2357

EGR Valve Control – EGR Motor Overcurrent detected; Mechanical System not responding properly or out of adjustment EGR Valve Delta Pressure – data valid but above normal operating range EGR Valve Delta Pressure – Key-on Pressure check In-Range diagnostics

EGA_Driver_OC_Fault

C_EGA_Driver_OC_Threshold

EGR_Delta_P_Autozero_Error OR EGR_DP_IR_Open_Error OR EGR_DP_IR_Closed_Error

2362

Engine Brake Actuator Circuit #1 – shorted low

EB_Drv_1_PWM_High_Control_Post_Processing_Error

C_EGR_Delta_P_AZ_Tolerence C_EGR_DP_IR_Startup_Pos_Thd C_EGR_DP_IR_Startup_Press_Thd Engine Brake PWM Output Driver #1 short LOW

2363

Engine Brake Actuator Circuit #2 – shorted low

EB_Drv_2_PWM_High_Control_Post_Processing_Error

Engine Brake PWM Output Driver #2 short LOW

2365

Engine Brake Actuator Circuit #3 – shorted low

EB_Drv_3_PWM_High_Control_Post_Processing_Error

Engine Brake PWM Output Driver #3 short LOW

2366

Engine Brake Actuator Circuit #1 – shorted high

EB_Drv_1_PWM_Low_Control_Post_Processing_Error

Engine Brake PWM Output Driver #1 short HIGH

2367

Engine Brake Actuator Circuit #2 – shorted high

EB_Drv_2_PWM_Low_Control_Post_Processing_Error

Engine Brake PWM Output Driver #2 short HIGH

2368

Engine Brake Actuator Circuit #3 – shorted high

EB_Drv_3_PWM_Low_Control_Post_Processing_Error

Engine Brake PWM Output Driver #3 short HIGH

2372

Fuel Filter Restriction Sensor Circuit – Warning Level

Prs_Fuel_Filter_Clogged_Error

2373

Exhaust Pressure Sensor – Shorted High

Exhaust_Pressure_Sensor_High_Error

Triggered at High Engine Speed Low Pressure Fault (482) Triggered at Low Engine Speeds Exhaust_Pressure_Sensor_High_Limit

2374

Exhaust Pressure Sensor Circuit – Shorted Low

Exhaust_Pressure_Sensor_Low_Error

Exhaust_Pressure_Sensor_Low_Limit

2375

EGR Orifice Temperature (ERT) Sensor Circuit – Shorted High

EGR_Orifice_Temperature_High_Error

EGR_Orifice_Temperature_High_Limit

2376

EGR Orifice Temperature (ERT) Sensor Circuit – Shorted Low

EGR_Orifice_Temperature_Low_Error

EGR_Orifice_Temperature_Low_Limit

2377

Fan Clutch Circuit – shorted high

T_Fan_Clutch_1_PWM_Low_Control_Error

Fan Clutch PWM Output Driver Shorted HIGH

2551

Fuel_Error_Rear_Overfuel_Error

Uncontrolled Overfueling in Rear Bank

Fuel_Error_Front_Overfuel_Error

Uncontrolled Overfueling in Front Bank

2554

Injector Metering Rail #2 Pressure High – data valid but above normal operating range; moderately severe Injector Metering Rail #1 Pressure High – data valid but above normal operating range; moderately severe Exhaust Pressure Sensor Circuit – Data Invalid

Exhaust_Pressure_Keyon_Error

Key-On Pressure In-Range Check

2961

EGR Orifice Temperature – Data above normal range

2962

EGR Orifice Temperature – Data above normal range - Critical

EGR_Orifice_Tmptr_Torque_Error OR CHH_EGRT_Over_Temperature EGR_Orifice_Tmptr_RPM_Error

EGR Orifice Temperature (ERT) Engine Protection C_CHH_EGRT_Disable_Thd EGR Orifice Temperature (ERT) Engine Protection

2963

Coolant Temperature – Data Above Normal Range

Coolant_Temperature_Torque_Error

Coolant Temperature Engine Protection

2964

Intake Manifold Temperature – Data Above Normal Range

IMT_Torque_Error

IMT Engine Protection

2973

Intake Manifold Pressure Sensor Circuit – Data Incorrect

Charge_Press_IR_Error

Charge Pressure In-Range Error Detection

2359

2552

Cummins Engine Co., Inc. Confidential

EGR Valve H-Bridge Circuit Fault – Overcurrent

Created by Brian J. Ouellette

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CM870 COMMON APPROACH TO CONTROL SYSTEM DIAGNOSTICS Diag_hdd02.doc REV 52

FAULT CODE 9114

DESCRIPTION OF FAULT Second Engine Control Module – data lost critical failure

SYSTEM ERROR PARAMETER NAME MS_All_Powerdown_Data_Lost_Error

CAUSED BY: LIMIT OR FAULT CONDITION CM570 Power Loss Before Powerdown Data Saved

9115

CAN/J1939 Network #2 Communications Error

J1939_MS_Communication_Error

9116

Second Engine Control Module – out of calibration

Master_Slave_Cal_Mismatch_Error

9117

Second Engine Control Module – critical internal failure

Error In Communication between CM870 and CM570 over CAN2 Datalink Mismatch between CM570 FS calibration and CM870 engine controls calibration CM570 Write Error to Flash / EEPROM Data Difference between RAM versus Flash/EEPROM

9118

Second Engine Control Module – non-critical failure

MS_RAM_Image_Word_Error OR MS_EEPROM_Write_Error OR MS_Boost_Voltage_Supply_Error OR MS_Poweroff_Command_Ignored_Error MS_Powerdown_Data_Lost_Error

9119

Battery #1 Voltage Low – warning

MS_Battery_Voltage_Low_Error

CM570 Battery Voltage Low Error

9121

EGR Valve Actuator Over Temperature (Calculated) – Data Above Normal Range Least Severe Level

EGA_Over_Temperature

C_EGA_Tmptr_High_Threshold

Cummins Engine Co., Inc. Confidential

CM570 Poweroff_Command_Ignored = TRUE

Created by Brian J. Ouellette

Page 89

CM870 COMMON APPROACH TO CONTROL SYSTEM DIAGNOSTICS CM870 CONTROL SYSTEM DIAGRAMS SYSTEM DIAGRAM CONTENTS: • • • • • • • • • • • • • •

CM870 CONTROL SYSTEM CM870 CONTROL SYSTEM – TORQUE TO FUEL DETERMINATION CM870 CONTROL SYSTEM – SOI DETERMINATION CM870 CONTROL SYSTEM – AIR HANDLING EGR VALVE / VG TURBOCHARGER CONTROLS CM870 CONTROL SYSTEM – NDOT GOVERNOR CONTROLS CM870 SENSOR INTERFACES (ENFORCER ’02 ENGINE) CM870 SENSOR INTERFACES (ISM ’02 ENGINE) CM870 AIR HANDLING CONTROL SYSTEM A/D SENSOR INPUT SYSTEM NAME CONFIGURATION INLET DENSITY CHI – CHI VALUE DETERMINATION (ENFORCER ’02 FULL PRODUCTION ENGINES) INLET DENSITY CHI – CHI VALUE DETERMINATION (ISM ’02 BETA ENGINES) AMBIENT OPERATING CONDITIONS – CHI VALUE DETERMINATION (ENFORCER ’02 FULL PRODUCTION ENGINES) AMBIENT OPERATING CONDITIONS – CHI VALUE DETERMINATION (ISM ’02 BETA ENGINES) CONDENSATION OVERVIEW (ENFORCER ’02 / ISM ’02)

Cummins Engine Co., Inc. Confidential

Created by Brian J. Ouellette

page 90

CM870 COMMON APPROACH TO CONTROL SYSTEM DIAGNOSTICS CM870 Control System: Desired_User_Fueling_State Four_D_Torque

Ndot_Powertrain Ndot Limp_Home Ndot_ASG Ndot_Cruise_Control

Coolant_Torque_Adjustment CHP_Pumping_Torque_Adj

Ambient_Air_Tmptr Filtered_Engine_Speed Net_Engine_Torque

MAX MACHINE TORQUE LIMIT

C_TQM_No_Derate_Torque Torque_Derate_Override_Enable TQM_Engine_Torque_Limit

OFC_Fuel_Limit Texh_Fuel_Limit

EMM_Protection_State EMM_AECD_State

CBR_Fuel_Ref CBR_Gross_Fuel CBR_EGR_Frac_Ref

SOI_Torque_To_Fuel_Adj

Torque_To_Fuel

CBR_MCF_Ref CBR_SOI_Ref

Combustion Reference (CBR)

CBL_MCF_Cmd CBL_EGR_Frac_Cmd

Combustion Limit Management (CBL) Charge Limit Management (CHL)

CHL_EGR_Frac_Cmd CHL_MCF_Cmd

EGR_Valve_Delta_Press

CSE_Xform_Error_1 Charge System Errors (CSE)

Cummins Engine Co., Inc. Confidential

CBL_SOI_Ref

Final SOI Timing Adjustment

CBL_Fuel_Ref

Final Fueling Adjustment

Final_Timing Total_Fueling

FSSC

COMBUSTION MANAGER EGR Valve and Assist Throttle Controller (EAC)

CSE_Xform_Angle CSE_Xform_Error_2

CHARGE MANAGER

Fan_Torque AC_Torque

Compensate For Off-Nominal Combustion (CBO)

Filtered_Turbo_Speed

Charge_Flow

ENGINE TORQUE LIMIT

EMM_Cap_EL_Cmd

EMISSIONS MANAGER

Compressor_Outlet_Tmptr

EGR_Fraction

TQM_Net_Machine_Torque_State

WP_Startup_Torque_Limit Altitude_Derate_Torque Engine_Protection_Derate_Torque

TQM_Final_Torque_Cmd

EMISSION REFERENCE (EMR)

TQM_Net_Machine_Torque_Cmd

TQM_Machine_Torque_Limit_State

TQM_Net_Engine_Torque_Rqst

Charge_Flow

CBL_EGR_Frac_Cmd

TQM_Machine_Torque_Limit

TORQUE MANAGER

TQM_Engine_Torque_Limit_State

Compressor_Inlet_Density

CHS_MCF_Cmd

MS_Final_Torque_Override TORQUE DERATE OVERRIDE

Out_Of_Gear_Torque PTP_Torque_Output PTO_Derate_Torque Throttle_100_Torque

TQM_Final_Torque_Cmd

COMPENSATE FOR OFF-NOMINAL EMISSIONS (EMO)

Ndot_LSG

Ndot_Demand

ADD

TQM_Net_Engine_Torque_Cmd + + +

OPERATIONAL BOUNDARIES

Ndot_HSG

SELECT MIN

NDOT Ndot_Net_Torque_Cmd_State GOVERNOR Ndot_Integral_Torque

TQM_Net_Engine_Torque_State

Altitude

Ndot_ANC

Ndot_PTO

MIN

Net_Machine_Torque

Ndot_RSG

Ndot_Net_Torque_Cmd

Ndot_Demand

Adjusted_User_Fueling_State

SELECT MIN

Ndot_User_Override

OPERATIONAL BOUNDARIES

SELECT MAX

Ndot_Four_D

MIN

ASG

SELECT MIN

SELECT

MIN

Filtered_Engine_Speed

SELECT MAX

Commanded_Throttle

CM870 CONTROL SYSTEM - AIR HANDLING CONTROLS

OPERATOR COMMANDS

Turbine Geometry Controller (TGC)

EAC_EGR_Valve_Cmd

TGC_VT_Cmd

EGR Valve Manager

EGA_Position_Cmd_Final

VGT Pneumatic Controller

VGT_Duty_Cycle_Dithered

Created by Brian J. Ouellette

page 91

CM870 COMMON APPROACH TO CONTROL SYSTEM DIAGNOSTICS CM870 Control System – Torque To Fuel Determination: CM870 TORQUE-TO-FUEL / FUEL-TO-TORQUE DETERMINATION Commanded_Throttle

Four_D_Torque Ndot_Net_Torque_Cmd

HSG

NDOT

LSG

Net_Engine_Torque = f(Filtered_Engine_Speed, FSS_Total_Fueling)

TQM_Final_Torque_Cmd

No_Load_Torque = Friction_Torque + CHP_Pumping_Torque_Adj

Filtered_Engine Speed

Friction_Torque = Coolant_Torque_Adjustment - Zero_Fuel_Torque

+ T_CBR_Gross_Fuel_User_Override

-

SOI_Torque_To_Fuel_Adj

C_CBR_Gross_Fuel_Override_Value

CBR_Gross_Fuel

C_CBR_Fuel_Ref_Override_Value

T_CBR_Fuel_Ref_User_Override

MIN

CBR_Gross_Fuel

OFC_Fuel_Limit

CBR_Max_Fuel_Limit

CBR_Density_Max_Fuel

COMBUSTION REFERENCE - DETERMINE CBR_Gross_Fuel User_Override_Fueling

CBO_Fuel_Ref

Off-Nominal Combustion (CBO)

FSS_Fueling_Derate_Request CBR_Max_Chi_Fuel

Texh_Fuel_Limit

COMBUSTION REFERENCE - DETERMINE CBR_Fuel_Ref CBR_Fuel_Ref

TQM_Net_Engine_Torque_State

CBR_Gross_Fuel_Before_Adj

TORQUE-TO-FUEL TABLE

TQM_Net_Engine_Torque_State

Net_Machine_Torque = Net_Engine_Torque - (AC_Torque + Fan_Torque)

CBR_Fuel_Ref

TORQUE MANAGER

MIN

Net_Machine_Torque

TQM_Final_Torque_Cmd

Ndot_Net_Torque_Cmd_State

SELECT MIN

Filtered_Engine Speed

FINAL FUELING SELECTION Total_Fueling

Combustion Limit (CBL)

CBL_Fuel_Cmd

User_Override_Fueling_Enable FSS_Total_Fueling

FSS_Total_Fueling

COMBUSTION TORQUE ESTIMATION

CHP_Pumping_Torque_Adj

-

Coolant_Torque_Adjustment C_CBP_Coolant_Torque_Adj_Factor +

CBP_SOI_Torque_Adj_Gain CBR_SOI_Alpha1 FSS_SOI Net_Engine_Torque

+

FUEL-TO -TORQUE

+ _ _ + +

Net_Engine_Torque Fan_Torque

E_Brake_Status

AC_Torque Friction_Torque CHP_Pumping_Torque_Adj

Cummins Engine Co., Inc. Confidential

+ _

CBP_Net_Combustion_Torque

-

CBP_Combustion_Torque

+

CBP_Net_Combustion_Torque

TORQUE PARAMETER DETERMINATION

Net_Machine_Torque

No_Load_Torque

SOI_Torque_To_Fuel_Adj

X

CBP_Adj_Total_Fueling

+

X

FUEL SYSTEM SPECIFIC CONTROLS (FSSC)

EBP_EB_Torque

Coolant_Torque_Adjustment Zero_Fuel_Torque

FUEL-TO -TORQUE

CHARGE_FLOW -TO-TORQUE Coolant_Tmptr Filtered_Engine_Speed 0.00 MG/STROKE

CBP_Adj_Charge_Flow FTT_ti_BaseFlTTL_v FTT_ti_BaseTmTTL_v FSI_q_totalFueling_v

Created by Brian J. Ouellette

page 92

CM870 COMMON APPROACH TO CONTROL SYSTEM DIAGNOSTICS CM870 Control System – SOI Determination: CBR_Gross_Fuel MIN

T_CBR_Fuel_Ref_User_Override

OFC_Fuel_Limit

CBR_Fuel_Ref

CBR_Base_Chi_SOI_Cmd

CBR_SOI_Alpha0

C_CBR_Fuel_Ref_Override_Value

CM870 SOI TIMING DETERMINATION

COMBUSTION REFERENCE

CBR_SOI_Alpha1

Filtered_Engine_Speed

CBR_SOI_Chi2

CBR_Alpha

+

Compensate For Off-Nominal Combustion Conditions: SOI Z-Modifier

CBR_SOI_Ref

+

CBR_SOI_Chi3

Chi

CBR_SOI_Chi4

OFC_EGR_Disable

CBO_SOI_Ref

Timing_State_Incr

If OFC_Limited = TRUE and CBR_Alpha = 0, then determine SOI Adjustment. Otherwise output is zero.

CBR_Fuel_Ref Filtered_Engine_Speed

CBR_OFC_Alpha0_Incr_Flag

CBR_OFC_Limit_SOI_Alpha0

CBR_Alpha

CBO_SOI_Ref Misfire_Timing_Limit Filtered_Engine_Speed

CBR_OFC_Alpha0_Incr_Flag

IMT, COOLANT TEMP., ALTITUDE SOI ADVANCE

CBO_Fuel_Ref

CBO_SOI_Adjust_Flag

Coolant_SOI_Advance

Coolant_Temperature

SOI_State

IMT_SOI_Advance

Intake_Manifold_Temperature

ANC_SOI

Ambient_Pressure_SOI_Advance

Ambient_Air_Pressure

T_CBL_SOI_Increment_Enable

ANC_SOI

C_CBL_SOI_Increment

ANC_SOI

COMPENSATED TIMING SELECTION

CBL_SOI_Max_Limit

CBL_SOI_Cmd SOI_State

SOI_State CBL_SOI_Min_Limit

Timing_State_Incr

Cummins Engine Co., Inc. Confidential

EB_Timiing SOI_State Timing_State_Incr

ENGINE BRAKE SOI

During Engine Cranking Event, Crank_Advance = CBM_SOI CRANK SOI

SOI_State Timing_State_Incr CBM_SOI

SOI_State_Before_CBL

User_Override_Timing_Enable

Timing_State_Incr Timing_State_Incr_Before_CBL

COMBUSTION LIMIT MANAGEMENT

If Fueling_Control_State = EBRAKE, set EB_Timing = E_Brake_Timing

User_Override_Timing FINAL TIMING SELECTION

Final_Timing Final_Timing_State

Created by Brian J. Ouellette

page 93

CM870 COMMON APPROACH TO CONTROL SYSTEM DIAGNOSTICS CM870 Control System – Air Handling EGR Valve / VG Turbocharger Controls:

Net_Machine_Torque

Ndot_Net_Torque_Cmd

HSG

NDOT

LSG

TQM_Final_Torque_Cmd

Ndot_Net_Torque_Cmd_State

TORQUE MANAGER

TQM_Net_Engine_Torque_State

Filtered_Engine_Speed

Filtered_Engine Speed TQM_Final_Torque_Cmd OFC_Fuel_Limit Texh_Fuel_Limit

CBR_FCLR_Ref CBR_Gross_Fuel / CBR_Fuel_Ref DETERMINATION WITH TRANSIENT CORRECTION

Alpha

MASS CHARGE FLOW REFERENCE (MCF)

CBR_EGR_Disable CBR_Fuel_Ref

CBR_MCF_Ref CBR_Fuel_Ref

SOI TIMING REFERENCE (SOI)

CBR_Chi_Value CBR_Chi_Value DETERMINATION

EGR_Valve_Is_Closed CBR_EGR_Frac_Ref Compressor_Inlet_Density

CBR_Gross_Fuel

EMM_Protection_State EMM_Cap_EL_Ref

EGR FRACTION REFERENCE (EGR Frac)

CBR_Alpha

CBR_SOI_Ref

CBR_Charge_Tmptr_Ref

CHARGE TMPTR REFERENCE

CBR_EGR_Off

CBR_NOx_Target_Ref

NOx REFERENCE (NOx)

COMBUSTION REFERENCE

COMBUSTION LIMIT MANAGEMENT (CBL)

Filtered_Engine Speed

CM870 EGRVALVE / VG TURBOCHARGE CONTROLS

Four_D_Torque

COMPENSATE FOR OFF-NOMINAL COMBUSTION (CBO)

Commanded_Throttle

CBL_EGR_Frac_Cmd CBL_MCF_Cmd CBL_Fuel_Cmd CBL_SOI_Cmd Timing_State_Incr

EB_Charge_Flow_Command E_Brake_Status

CHS_MCF_Cmd

CHL_MCF_Cmd Charge_Flow

Charge_Flow

CBL_MCF_Cmd

CHL_EGR_Frac_Cmd

CBL_EGR_Frac_Cmd CBL_Fuel_Cmd Compressor_Outlet_Tmptr Filtered_Turbo_Speed Compressor_Inlet_Density EGR_Valve_Delta_Press

CHARGE LIMIT SELECTION

CHL_COT_Drt_Offset CHARGE FLOW LIMITERS

CHL_Turbo_Speed_Drt_Offset CHL_Delta_P_Drt_Offset

EGR_Fraction Filtered_Engine_Speed

+ CSE_MCF_Error _ cos(CSE_Xform_Angle) + CSE_EGR_Frac_Error _ cos(90o - CSE_Xform_Angle) CSE_Xform_Angle

FSS_Total_Fueling

CHARGE LIMIT MANAGEMENT EGA_Over_Temperature EGA_Driver_Over_Current EGA_Electrical_Fault

TGC_VT_Cmd EGR VALVE DIAGNOSTICS

VGT_Duty_Cycle_Dithered VGT_Duty_Cycle

EGA_Control_Error EGA_Control_State EGA_PWM_Abs_Duty_Cycle EGA_Position_Cmd_Final

EGR VALVE MANAGER / CONTROLLER

VGT CONTROLLER

Battery_Volt

VGT INNER-LOOP GAIN CONTROLLER

Coolant_Tmptr EAC_EGR_Valve_Cmd

EGR VALVE INNER-LOOP GAIN CONTROLLER

X

X

+ _

X

+

X

+

CSE_Xform_Error_2 EGR_Valve_Delta_Press CSE_Xform_Error_1 CHL_EGR_Frac_Cmd

EGR_Position

Cummins Engine Co., Inc. Confidential

Created by Brian J. Ouellette

page 94

CM870 COMMON APPROACH TO CONTROL SYSTEM DIAGNOSTICS CM870 Control System – Ndot Governor Controls: Gain

Filtered_Gear_Ratio Rear_Axle_Ratio TW_Adjusted_Tire_Size

LSG_Proportional_Gain LSG_Adjusted_Reference_Speed Filtered_Engine_Speed

Effective_Gear_Ratio

C_GR_Norm_Rear_Axle_Ratio C_GR_Norm_Tire_Size

Gain

HSG_Proportional_Gain HSG_Reference_Speed Filtered_Engine_Speed

Effective GR Calculation Gain

Ndot_Feedforward_Gain

Ndot_Integral_Torque Gain

CC_Proportional_Gain CC_Drooped_Reference_Speed Road_Speed

Filtered_Engine_Speed

Gain

RSG_Proportional_Gain RSG_Drooped_Reference_Speed Road_Speed

Road_Speed Four_D_Torque Gain

Ndot_Integral_Torque

ASG_Proportional_Gain ASG_Reference_Speed Filtered_Engine_Speed

Gain Effective_Gear_Ratio

Filtered_Engine_Speed Ndot Feedforward Gain

Filtered_Engine_Speed

Gain * Error

Ndot_HSG

Gain * Error

Ndot_Four_D

Gain * Error

Ndot_Cruise_Control

Gain * Error

Ndot_RSG

Gain * Error

Ndot_ASG

Gain * Error

Ndot_PTO

Ndot_Proportional_Gain Ndot GR Multiplier

Torque_Derived_Ndot

Ndot_Feedforward_Gain Ndot_Demand

X

Ndot_Feedforward_Torque

Ndot_Integral_Gain

X Ndot Base I Gain

Ndot GR Multiplier

OPERATION COMMANDS: Ndot_Cruise_Control Ndot_ASG Ndot_Four_D Ndot_Powertrain Select MAX Ndot_User_Override

Engine_State Ndot_Demand

Ndot_Demand

Filtered_Engine_Speed Effective_Gear_Ratio Adjusted_User_Fueling_State Torque_Derived_Ndot

Filtered Acceleration Rate Calculation

Ndot_Actual_Filtered

Ndot_Demand

Ndot_Net_Torque_Cmd 1 Z

Net_Machine_Torque

Ndot_Actual_Filtered Integrator Reset

Ndot_Excess_Torque_Adj

EB_CC_Brake_Torque_Only OPERATION BOUNDARIES: Ndot_RSG Ndot_ANC Ndot_HSG

Ndot_Integrator_Clamp_Min No_Load_Torque

Integrator Min Limit

Ndot_Integral_Min_Limit

Ndot Proportional Torque Calculation

Ndot_Proportional_Gain Torque_Derived_Ndot

+ _

Torque_Derived_Ndot Ndot_Excess_Torque_Adj Ndot_Integral_Min_Limit Engine_State

Ndot_Proportional_Torque

ADD

Effective_Gear_Ratio

Ndot_Error

Ndot Integral Torque Calculation

Ndot_Integral_Torque

Ndot_Integral_Gain

Ndot PI CONTROLLER

Select MIN

OPERATION BOUNDARIES: Ndot_LSG

Ndot_Demand

Ndot_Feedforward_Gain

Effective_Gear_Ratio

Filtered_Engine_Speed

CM870 NDOT GOVERNOR CONTROLS

Ndot_User_Override Ndot_Powertrain Ndot_ANC

Ndot Demand Determination

X Ndot Base P Gain

Ndot Gain Determination

PTO_Proportional_Gain PTO_Reference_Speed

Ndot_LSG

Ndot PRIORITY SELECTION

Four_D_Torque

Gain * Error

Select MAX

Ndot PRIORITY

Cummins Engine Co., Inc. Confidential

Ndot_Net_Torque_Cmd_Unfiltered CC_EB_Brake_Torque_Only No_Load_Torque Adjusted_User_Fueling_State

Ndot_Net_Torque_Cmd Ndot Torque Limiting

Ndot_Net_Torque_Cmd_State

Created by Brian J. Ouellette

page 95

CM870 COMMON APPROACH TO CONTROL SYSTEM DIAGNOSTICS CM870 Sensor Interfaces (ENFORCER Engine):

Cummins Engine Co., Inc. Confidential

Created by Brian J. Ouellette

page 96

CM870 COMMON APPROACH TO CONTROL SYSTEM DIAGNOSTICS CM870 Sensor Interfaces (ISM ‘02 Engine):

Cummins Engine Co., Inc. Confidential

Created by Brian J. Ouellette

page 97

CM870 COMMON APPROACH TO CONTROL SYSTEM DIAGNOSTICS CM870 Air Handling Control System: Compressor_Inlet_Press Compressor_Inlet_Density Compressor Inlet Temperature Sensor Ambient_Air_Temperature Compressor_Inlet_Tmptr Ambient_Air_Tmptr (est.)

VG Air Shutoff Valve TB_Air_Shutoff_Valve

VG Turbocharger

VG Norgren Valve VGT_Duty_Cycle

Filtered_Turbo_Speed

VG Pneumatic Actuator Exhaust_Tmptr Compressor_Outlet_Tmptr

Engine_Delta_Press

EGR_Valve_Delta_Press Exhaust Pressure Sensor Exhaust_Pressure_Sensor Exhaust_Press

BASE ENGINE

EGR Valve EGR Valve Position Sensor EGR_Position_Before_Autozero EGR_Position

CHARGE AIR COOLER EGR COOLER

Ambient Air Pressure Sensor Air_Pressure_Sensor Compressor_Inlet_Press (est.)

Ambient_Air_Press

Charge Pressure Sensor Boost_Pressure_Absolute Charge_Press_Absolute Charge_Press (gage) Boost_Pressure (gage)

Venturi / Ejector or Mixing Device

Charge Temperature Sensor Intake_Manifold_Temperature_Sensor Intake_Manifold_Temperature Charge_Tmptr

)(

)(

Barometric Conditions / Altitude

EGR Cooler Outlet Temperature Sensor EGR_Orifice_Temperature EGR_Orifice_Tmptr

EGR_Flow Charge_Flow

EGR Flow Venturi / Orifice

EGR Delta Pressure Sensor EGR_Delta_P_Sensor EGR_Delta_Press EGR_Orifice_Delta_Press

Cummins Engine Co., Inc. Confidential

Created by Brian J. Ouellette

page 98

CM870 COMMON APPROACH TO CONTROL SYSTEM DIAGNOSTICS A/D Sensor Input System Name Configuration:

ANALOG TO DIGITAL (A/D) SENSOR INPUT SYSTEM NAME CONFIGURATION

Ambient Air Pressure Sensor Air_Pressure_Sensor

Air_Press_Sensor

Ambient_Air_Press Compressor_Inlet_Press (est.)

Compressor_Inlet_Tmptr_Sensor

Ambient_Air_Tmptr (est.)

Compressor_Inlet_Tmptr

Compressor Inlet Temperature Sensor Charge Temperature Sensor Charge_Tmptr_Sensor

Intake_Manifold_Temperature_Sensor

Boost_Pressure_Absolute

Exhaust Pressure Sensor Exhaust_Pressure_Sensor

EGR Cooler Outlet Temperature EGR_Orifice_Temperature

EGR Delta Pressure Sensor EGR_Delta_P_Sensor

EGR Valve Position Sensor EGR_Position_Before_Autozero

Coolant Temperature Sensor Coolant_Temperature

Oil Temperature Sensor Oil_Temperature

Oil Pressure Sensor Oil_Pressure_Absolute

Fuel Rail Pressure Sensor Fuel_Rail_Pressure

Fuel Temperature Sensor Fuel_Temperature

CONVERT FROM ANALOG INPUT SENSOR NAME TO A/D SENSORNAME

Charge Pressure Sensor

Charge_Press_Sensor

Exhaust_Press_Sensor

EGR_Orifice_Tmptr_Sensor EGR_Delta_Press_Sensor

EGR_Position_Sensor

Coolant_Tmptr_Sensor

Oil_Tmptr_Sensor Oil_Press_Sensor Fuel_Rail_Press_Sensor Fuel_Tmptr_Sensor

ECM Internal Temperature ECM_Internal_Temperature

CONVERT FROM A/D SENSOR NAME TO POSTPROCESSES NAME (ALGORITHM INPUTS)

Compressor_Inlet_Temperature

Intake_Manifold_Temperature Charge_Tmptr Boost_Pressure_Absolute Charge_Press (abs.)

Boost_Pressure (gauge) Charge_Press_Gauge (gauge) Exhaust_Press

EGR_Orifice_Tmptr EGR_Delta_Press EGR_Orifice_Delta_Press EGR_Valve_Delta_Press EGR_Position

Coolant_Tmptr

Oil_Tmptr Oil_Press_Absolute Oil_Press (gage) Oil_Pressure (gage) Fuel_Rail_Press Fuel_Rail_Pressure Fuel_Tmptr Fuel_Temperature

ECM_Internal_Tmptr_Sensor

ECM_Internal_Tmptr

Battery_Volt_12V_Sensor Battery_Volt_24V_Sensor

Battery_Volt

Battery Voltage Battery_Voltage_12V Battery_Voltage_24V

Cummins Engine Co., Inc. Confidential

Created by Brian J. Ouellette

page 99

CM870 COMMON APPROACH TO CONTROL SYSTEM DIAGNOSTICS Inlet Density Chi – Chi Value Determination (Enforcer ‘02 Full Production Engines):

Cummins Engine Co., Inc. Confidential

Created by Brian J. Ouellette

page 100

CM870 COMMON APPROACH TO CONTROL SYSTEM DIAGNOSTICS Inlet Density Chi – Chi Value Determination (ISM ’02 Beta Engines):

Cummins Engine Co., Inc. Confidential

Created by Brian J. Ouellette

page 101

CM870 COMMON APPROACH TO CONTROL SYSTEM DIAGNOSTICS Ambient Operating Conditions – Chi Value Determination (Enforcer ‘02 Full Production Engines):

Ambient Operating Conditions & Desired Chi Calibration Table Scheme 15 - Enforcer FP

120

NOTE: Lines of constant compressor inlet density assume 10 degF preheat.

Lock Alpha 1

110 100 Interpolate between Chi1 & Chi2

Ambient Temperature [degF]

90

Hold Chi4 Interpolate between Chi2 & Chi3

80 70

AECD Region II

AECD Region I

60

AECD Region III

Interpolate between Chi3 & Chi4

50 40 Hold Chi1

30 20 10 0 0

2000

4000

6000

8000

10000

12000

Altitude [ft]

Cummins Engine Co., Inc. Confidential

Created by Brian J. Ouellette

page 102

CM870 COMMON APPROACH TO CONTROL SYSTEM DIAGNOSTICS Ambient Operating Conditions – Chi Value Determination (ISM ’02 Beta Engines):

Ambient Operating Conditions & Desired Chi Calibration Table Scheme 14 - ISM02 Beta 120 Lock Alpha 1

110 100

Interpolate between Chi1 & Chi2

90 Ambient Temperature [degF]

NOTE: Lines of constant compressor inlet density assume 10 degF preheat.

80 70

AECD Region II

AECD Region I

60

Step to Chi4

Interpolate between Chi2 & Chi3

Hold Chi3 AECD Region III

50 40 Hold Chi1

30 20 10 0 0

2000

4000

6000

8000

10000

12000

Altitude [ft]

Cummins Engine Co., Inc. Confidential

Created by Brian J. Ouellette

page 103

CM870 COMMON APPROACH TO CONTROL SYSTEM DIAGNOSTICS Condensation Overview (Enforcer ‘02 / ISM ‘02):

4.0

3.5

saturation line fresh air exhaust gas intake man.

3.0

H2O Partial Pressure (psia)

1.

2.

3.

4.

EGR Cooler Out

2.5

2.0

1.5

CAC Out

Intake Manifold

1.0

Comp Out 0.5

Comp In Ambient

0.0 50

75

100

125

150

175

Temperature (F)

Cummins Engine Co., Inc. Confidential

200

225

250

275

300

measure CIT estimate AAT measure AAP estimate Inlet Saturation Partial Pressure: InletPPSAT = f(AAT) 5. estimate Inlet Mole Fraction: InletXH2O = InletPPSAT*RH/AAP 6. estimate Combustion Mole Fraction: CombXH2O = f(Phi, EGX) 7. estimate Charge Mole Fraction: ChargeXH2O = InletXH2O + CombXH2O 8. measure IMP 9. estimate Charge Partial Pressure: ChargePP = ChargeXH2O * IMP 10. measure IMT 11. estimate Charge Sat. Partial Pressure: ChargePPSAT = f(IMT - margin) 12. compare to ChargePP to ChargePPSAT

Created by Brian J. Ouellette

page 104

CM870 COMMON APPROACH TO CONTROL SYSTEM DIAGNOSTICS CUSTOMER / DRIVER SURVEY Questions intended to encourage feedback on engine performance. Make record of vehicle configuration, engine model rating, transmission, axle, etc. Where possible use open ended questions to solicit driver feedback.

Customer Information Driver Name: Owner / Operator

YES

NO

Unit #:

Fleet Driver

YES

NO

Fleet Name:

Years of Driving Experience: Other Engine(s) Driven or Familiar With: Engine Model / Rating / ECM Calibration (if known): How Long Have You Driven With This Engine?: Base Location: Typical Route: (Check all that apply) Local Delivery

Mountainous

Interstate

Hilly Terrain

City

Flat Terrain

Rural

Dirt / Gravel Roads

Off-Road

Snow / Ice Covered Roads

Approx. Gross Vehicle Weight: Truck Model / Year: Transmission Make and Model: Number of Gears: Power Train Data:

Automatic / Automated Transmission?

Rear Axle Ratio: Tire Size: Clutch Make / Model:

Auxiliary Devices: (ex. Anti-Lock Brakes, Anti-Slip, PTO, Turbo-Conveyor, etc.)

Cummins Engine Co., Inc. Confidential

Created by Brian J. Ouellette

page 105

CM870 COMMON APPROACH TO CONTROL SYSTEM DIAGNOSTICS Typical Driving Techniques Do you normally use the clutch when shifting?

What engine speed do you normally use to upshift?

What engine speed do you normally use to downshift?

Do you maintain Top Gear? Gear-Down?

What type of throttle control do you prefer to use?

Automotive (Min/Max) Governor

All-Speed Governor (CAT Throttle)

When do you use Cruise Control?

If not, do you run on the road speed governor?

Do you use the Smart Road Speed Governor Feature?

When climbing a grade do you: Resume Cruise Control after a downshift?

Keep your foot on the throttle?

With Engine Brakes, what engine speed do you typically maintain on steep grades: 1600 – 1700 RPM 1700 – 1800 RPM 1800 – 1900 RPM 1900 – 2000 RPM

2000 – 2100 RPM

Other (Specify)

RPM

Engine Start Is engine cranking time acceptable?

Cold Start

YES

NO

Crank Secs

Hot Start

YES

NO

Crank Secs

YES

NO

YES

NO

Does the engine smoke at startup?

YES

NO

If yes, is smoke:

BLUE

WHITE

Ambient Temp

deg Fahrenheit

Does engine start acceptably?

Comments?

How long does the engine crank before it fires?

Does engine speed overshoot at startup?

Comments?

How soon does engine speed settle after the engine starts?

How does the engine exhaust appear?

Is throttle response noticed after startup?

Cold Start?

YES

NO

Hot Start?

YES

NO

How well does the engine respond to throttle motion after startup?

Comments?

Cummins Engine Co., Inc. Confidential

Created by Brian J. Ouellette

page 106

CM870 COMMON APPROACH TO CONTROL SYSTEM DIAGNOSTICS Engine Idle Idle speed setting used

RPM

Idle Time (Driver Estimate)

Does the engine idle smoothly?

YES

NO

Does the engine surge at idle?

YES

NO

Does the idle increment/decrement switch operate acceptably?

YES

NO

Does the engine idle at desired speed?

YES

NO

%

ECM Idle Time

%

How would you describe the engine at idle speed in terms of: Sound?

Vibration?

When do you use the Idle Increment / Decrement (Idle Adjust) Feature?

What idle speed do you prefer?

RPM

Does idle undershoot when coming off higher RPM engine operation?

YES

NO

Is there any smoke during idle?

YES

NO

If yes, is smoke:

BLUE

BLACK

Comments?

Ambient Temperature:

WHITE

deg Fahrenheit

Comments?

Engine PTO Operation PTO set speed used

RPM

PTO Time (Driver Estimate)

%

ECM PTO Time

%

Created by Brian J. Ouellette

page 107

When do you use PTO? What PTO set speeds do you prefer?

Does the PTO operate smoothly?

YES

NO

Does the engine surge on PTO?

YES

NO

Does the PTO speed adjustment switch operate acceptably?

YES

NO

Does the PTO operate at desired speed?

YES

NO

Does PTO overshoot or undershoot when engaging PTO or changing RPM?

YES

NO

Comments?

Is there any smoke during PTO?

YES

NO

If yes, is smoke:

BLUE

BLACK

Ambient Temperature:

WHITE

Deg Fahrenheit

Comments?

Cummins Engine Co., Inc. Confidential

CM870 COMMON APPROACH TO CONTROL SYSTEM DIAGNOSTICS Clutch Engagement In what gear do you normally launch the vehicle?

Gear:

1L

1

1H

2L

2

2H

3L

3

3H

4L

4

4H

Loaded: Unloaded: Bobtail: Do you use the throttle while releasing the clutch to launch the vehicle?

YES

NO

Do you let the clutch completely out before applying throttle?

YES

NO

Has the engine ever stalled during vehicle launch?

YES

NO

If YES, how often?: If YES, what were the conditions when this occurred?

On-hill Launch?

Loading Dock?

Unfamiliar with Truck / Engine?

Mud / Snow / Ice? Released Clutch Too Fast?

Foot Slipped Off Clutch?

Chose Wrong Gear?

Other: If YES, what adjustments have you made to prevent stall?

Use Lower Gear?

Slip / Feather Clutch?

Use Throttle?

Raise Idle Speed?

Nothing?

Other: Do you watch your tachometer when launching the vehicle?

YES

NO

If YES: Is engine speed drop excessive?

YES

NO

Approx. RPM Drop:

RPM

If YES: Is engine speed overshoot excessive?

YES

NO

Approx. RPM Overshoot:

RPM

Does engine speed decelerate too fast, too slow, or just right on clutch engagement?

Too Fast

Too Slow

Just Right

Too Fast

Too Slow

Just Right

Explain why: Does engine speed recover (accelerate) too fast, too slow, or just right on clutch engagement?

Explain why:

Cummins Engine Co., Inc. Confidential

Created by Brian J. Ouellette

page 108

CM870 COMMON APPROACH TO CONTROL SYSTEM DIAGNOSTICS Clutch Engagement (cont.)

How would you rate the overall vehicle launch performance (clutch engagement)?

Excellent Good Acceptable Poor

Explain why: How would you rate the engine torque (power) during vehicle launch (clutch engagement)?

Excellent Good Acceptable Poor

Explain why: How would you rate the engine accepting load during vehicle launch (clutch engagement) on level ground? (Check all that apply) Smooth

Engine accepts load easily

Jerky

Engine struggles to accept load

Must “feather” clutch

Engine feels like it wants to stall

Comments: How would you rate the engine accepting load during vehicle launch (clutch engagement) on uphill grade? (Check all that apply) Smooth

Engine accepts load easily

Jerky

Engine struggles to accept load

Must “feather” clutch

Engine feels like it wants to stall

Other Comments: How does this engine compare to the last engine you drove in terms of clutch engagement performance?

Much Better Better Same Worse Much worse

Comments: Overall vehicle launch (clutch engagement) comments?

Cummins Engine Co., Inc. Confidential

Created by Brian J. Ouellette

page 109

CM870 COMMON APPROACH TO CONTROL SYSTEM DIAGNOSTICS Cruise Control Fill in customer trim information to detail how engine is trimmed: Road Speed Governor Upper Droop

MPH

Road Speed Governor Lower Droop

MPH

Cruise Control Upper Droop

MPH

Cruise Control Lower Droop

MPH

When do you use Cruise Control?

Driver Input Can the driver easily set the desired cruise speed?

YES

NO

YES

NO

Comments?

Does the cruise control maintain desired set speed?

Comments?

When Setting

YES

NO

Road Speed Gain MPH

Road Speed Loss MPH

On Hills

YES

NO

Road Speed Gain MPH

Road Speed Loss MPH

Level Ground

YES

NO

Road Speed Gain MPH

Road Speed Loss MPH

How does the engine feel and sound when: Cresting a hill?

Rolling out at the bottom of a hill?

Does the cruise control cause the engine to surge?

YES

NO

At the bottom of hills?

YES

NO

When starting up a hill?

YES

NO

Does the engine respond when over-riding the cruise control with the throttle?

YES

NO

Does the cruise control Auto-Resume perform acceptably? (IF TRIMMED) (Is there a noticeably time delay before resume occurs?)

YES

NO

Does the cruise control Auto-Resume overshoot/undershoot after clutch event?

YES

NO

On Hills

YES

NO

Road Speed Gain MPH

Road Speed Loss MPH

Level Ground

YES

NO

Road Speed Gain MPH

Road Speed Loss MPH

Cummins Engine Co., Inc. Confidential

Created by Brian J. Ouellette

page 110

CM870 COMMON APPROACH TO CONTROL SYSTEM DIAGNOSTICS Engine Response How well does the engine respond to throttle movements when: Moving?

In-gear?

Stationary, at idle?

Is there noticeably delay from the time the throttle is depressed until the engine RPM or torque picks up?

YES

NO

Does it occur at all engine speeds or in one range of engine speed?

YES

NO

Is the response predictable when the throttle pedal is depressed?

(Is it more sensitive in lower speed ranges, etc.)

YES

NO

Is it easy to synchronize speed during gear shifts?

YES

NO

Range

RPM

Upshifts?

YES

NO

Downshifts?

YES

NO

Low Speed Maneuvering What is idle speed setting when performing parking lot maneuvers?

RPM

Is throttle control acceptable for low speed maneuvers (parking lots, delivery terminals, etc) Loaded

YES

NO

Bobtail

YES

NO

Bobtail

YES

NO

Is throttle control in reverse gear acceptable?

Loaded

YES

NO

Is there any surge when maneuvering at low speeds?

YES

NO

What gear?

Is the delay time from the expected brake actuation until the brakes actuate acceptable?

YES

NO

Do the correct number of brakes actuate at the desired speed increment above cruise speed?

YES

NO

Does the cruise control resume correctly after the brakes have deactivated?

YES

NO

Does the cruise control surge when resuming?

YES

NO

Does the cruise control overshoot?

YES

NO

Does the cruise control undershoot?

YES

NO

Does the auto cruise braking feature cause a surge when engaging in cruise?

YES

NO

Does the engine brake manual shut off switch work correctly?

YES

NO

Does the manual brake selector switch work correctly?

YES

NO

How well does the engine respond during: Low speed maneuvers?

Parking?

Braking?

Engine Brake in Cruise Feature

Cummins Engine Co., Inc. Confidential

Created by Brian J. Ouellette

page 111

CM870 COMMON APPROACH TO CONTROL SYSTEM DIAGNOSTICS EGR / VGT Control System How does the performance of this engine compare to a previous Cummins engine you may have operated?

BETTER

WORSE

NO CHANGE

Comments?

Please describe what you experience while operating/driving during: Rapid Accels Rapid Decels Uphill Climb Downhill Grades In-City Driving Highway Driving Engine Idle Truck Yard Maneuvers During Cruise Control Events During Engine Brake Events Cold Engine Start Approximate outside temperature

deg Fahrenheit

Hot Engine Starts Approximate outside temperature

deg Fahrenheit

At Altitude Approximate altitude for engine operation

Cummins Engine Co., Inc. Confidential

feet

Created by Brian J. Ouellette

page 112

CM870 COMMON APPROACH TO CONTROL SYSTEM DIAGNOSTICS NOTES

Cummins Engine Co., Inc. Confidential

Created by Brian J. Ouellette

page 113