System Description: Description
- 4WAS system consists of two control units (4WAS front control unit and 4WAS main control unit) and 4WAS rear actuator components.
- 4WAS main control unit calculates front wheel and rear wheel angles via CAN communication based on the information of the steering angle sensor signal and vehicle speed signal.
- 4WAS main control unit controls 4WAS rear actuator according to the value calculated in 4WAS main control unit.
- It transmits the value that is calculated by 4WAS main control unit to 4WAS front control unit via 4WAS communication line (exclusive line of 4WAS system). 4WAS front control unit controls 4WAS front actuator based on the received demand.
- Self-diagnosis can be performed with CONSULT-III at each control unit to another (4WAS front control unit and 4WAS main control unit).
- It transmits/receives each signal from the following control unit via CAN communication line.
COMPONENT FUNCTION CHART
| Component parts | Function |
|---|---|
| Steering angle sensor | It mainly transmits the following signals to 4WAS main control unit with CAN communication.
|
| ABS actuator and electronic unit (control unit) | It mainly transmits the following signals to 4WAS main control unit with CAN communication.
|
| ECM | It mainly transmits the following signals to 4WAS main control unit with CAN communication.
|
| Combination meter | It mainly transmits the following signals from 4WAS main control unit with CAN communication.
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| *: Communication line between 4WAS front control unit and 4WAS main control unit | |