System Diagram
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002 COMMUNICATION METHOD REFERENCE
| Transmitting ECU (Transmitter) |
Receiving ECU |
Signals |
Communication method |
| HV Control ECU |
Skid Control ECU |
- Maintenance mode
- HV system valid flag 2
- MGR revolution angle sensor signal
- MGR revolution
- MG1, MG2 revolutions
- Maximum controllable torque Fr, Rr
- Minimum controllable torque Fr, Rr
- MGR torque control ratio
- Operating torque Rr
- Regeneration decline notice Rr
- Operating torque distinction, Fr, Rr
- Regeneration permission flag Fr, Rr
- Operating torque Fr
- 4WD demand from HV control ECU
- Shift position signal
- Skid control ECU → HV control ECU communication fault
- Regeneration fault flag
- Basic drive force
- Basic drive force Fr
- Basic drive force Rr
- HV system valid flag
- Acceleration output
|
CAN Communication System |
| Skid Control ECU |
HV Control ECU |
- 4WD priority
- 4WD in operation
- 4WD Hi range demand
- Demanded driving torque Rr
- Regeneration demand Fr, Rr
- Torque-up demand Fr, Rr
- Driving force distribution ratio
- Brake torque (on drive shaft axis)
- Acceleration signal Fr, Rr
- Wheel speed signal (4 wheels)
- HV control ECU → Skid control ECU communication logic fault
- AWD warning illumination demand
- VSC, TRC torque controlled Rr
- HV control ECU → Skid control ECU communication line fault
|
CAN Communication System |
| HV Control ECU |
Combination Meter Assembly (Meter CPU) |
- AWD warning illumination demand
|
- CAN Communication System
- Multiplex Communication System (BEAN Bus)
|