MESSAGE FORMAT (CONT’D) BOBCAT Proprietary PGN (Cont’d) CAN communication failure •
Detect CAN communication malfunction
•
At system start 㫊㫌㪺㪺㪼㫊㫊 CAN䇭㪺㫆㫄㫄㫌㫅㫀㪺㪸㫋㫀㫆㫅 Y_ECR1,TSC1 failure
failure Control mode Normal CAN communication failure (2 sec)
EECU initialize (about 100ms)
Power ON
021783-00E
When EECU cannot receive necessary information via CAN-BUS for two seconds* after power-on start, it considers that the CAN communication failure occurred.
•
After system start normally CAN communication success (one time) 㫊㫌㪺㪺㪼㫊㫊 CAN䇭㪺㫆㫄㫄㫌㫅㫀㪺㪸㫋㫀㫆㫅 Y_ECR1,TSC1 failure CAN communication failure (five times)
failure Control mode Normal
021784-00E
When EECU cannot receive necessary information via CAN-BUS five times continuously, it is considers that the CAN communication failure occurred. (ex. period of five times: TSC1:10 x 5 ms, Y_ECR1:10 x 5 ms) When EECU can receive necessary information via CAN-BUS for one time, it considers that the CAN communication has done normally. •
Start lock at CAN communication failure mode
When EECU cannot receive Y_ECR1 or Starter Prohibition (65308) via CAN-BUS for two seconds* after power-on start, EECU will allow to start engine according to discrete input signals. Y_ECR1 Shutdown requests
Engine Speed
E8
E24
Start SW
Start enable OFF
OFF ON -
< (*1) min-1 OFF ON ON
-
=> (*1) min-1 -
-
-
Y_EC (standard) starter prohibition -
Y_ECR1 (option)
E20
Key Position Starter relay -
OFF OFF OFF OFF OFF OFF ON ON OFF OFF
*1:starter prohibition Engine speed (determined by map value:normal value 675 min-1)
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E55W, E60, E80 Electronic Control System Manual
