CONTROL FUNCTIONS (CONT’D)

Application Interface Outline (Cont’d)

Accelerator filter

The accelerator filter regulates the trade-off between acceleration/deceleration time and overshoot/undershoot during acceleration or deceleration. This feature is factory set appropriately at Bobcat, but a higher priority may have to be given to either the reduction of acceleration/deceleration time or the suppression of overshoot/undershoot depending on the engine applications.

[Figure 10-40-46] shows the effect of the accelerator filter. The accelerator filter delays reaching the engine target speed, thereby avoiding overshoot and undershot while trading off the speed responsibility of the engine.

By advancing the engine target speed change, the motion responsiveness at the time of engine acceleration/ deceleration can be improved.

When the adjustment requirement is admitted in the engine application test in regard to the stabilization and responsiveness of engine speed mentioned above, Bobcat makes the adjustment to change the model-specific control map by this adjustment.

CONTROL FUNCTIONS (CONT’D)

Application Interface Outline (Cont’d)

Block heater control

This feature allows the block heater to be turned on or off by an external block heater relay as long as the E-ECU power supply is on. By default, the block heater relay turns on when the coolant temperature decreases to 15°C, and turns off to disable the block heater when the coolant temperature increases to 50°C. By default, the "block heater control" feature is disabled. When the “block heater control” feature is enabled, the coolant temperature alarm indication and block heater control cannot be done [See "Terminal assignment" on page 10-40-51].

[Figure 10-40-47] shows a typical connection diagram for block heater control.

Block heater

AC115V : 171015-77900

AC210V : 46150-504500

CONTROL FUNCTIONS (CONT’D)

Application Interface Outline (Cont’d)

Engine failure detection

The E-ECU accepts the connection of engine failure detection sensors as shown in [Figure 10-40-48] besides electronic control sensor. Actions to be taken depending on the status of sensors can be programmed. The sensor status can also be sent via CAN communication.

In order to take in each sensor signal to the E-ECU, the E-ECU terminal function setting of APP-IP2, APP-IP3, APP-IP5, and APP-IP6 must be changed.When the sensor connection is enabled by the optional setting, some applications can no longer be used. [See "Terminal assignment" on page 10-40-51] for details. A failure lamp can be connected to each sensor as shown in [Figure 10-40-48] . In this case, do not connect the indication lamp to the IGNSW (E7) terminal. See [Figure 10-40-48].Turning current from the APP-IP terminal to the IGNSW terminal may cause the E-ECU power supply to not shutdown.

Note:Be sure to connect a lamp or load resistance (120Ω) to the pressure switch so that the contact current is 100mA or higher for the oil pressure switch (119761-39450, etc.). Due to the impurity of lube oil, contact failure of oil pressure switch may be caused.

Do not connect the indicator lamp power supply to IGNSW terminal