ELECTRO HYDRAULIC POWER ASSIST STEERING CONTROL MODULE CONSTRUCTION/OPERATION
id061400101800
Construction
Function Table
Control item |
Function |
---|---|
Motor current control
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• Calculates the proper assist current based on the steering speed, and vehicle and engine speeds, and outputs a control current to the motor.
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On-board diagnostic function
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• A function that allows important parts of the control system to perform self-diagnosis. In case a malfunction occurs, the EHPAS warning light illuminates to advise the driver, and at the same time a DTC is stored in the EHPAS control module.
• When a malfunction is determined as a result of the on-board diagnosis, system control is suspended or limited to prevent any dangerous occurrence while driving.
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1
|
Steering angle sensor
|
2
|
Steering speed signal
|
3
|
Vehicle speed signal (CAN)
|
4
|
Engine speed signal (CAN)
|
5
|
EHPAS control module
|
6
|
On-board diagnostic function
|
7
|
Control current
|
8
|
Motor
|
9
|
EHPAS warning light
|
Operation
Motor current control
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1
|
Motor speed (rpm)
|
2
|
Steering wheel rotation speed (deg/s)
|
3
|
Stand-by
|
4
|
Vehicle speed (low)
|
5
|
Vehicle speed (high)
|
6
|
Smallest detected angle of steering angle sensor
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