Average Moving Curent Control; Over-Voltage Control - Honda Prelude 1993 Service Manual

System Descripton
Electronically Controlled Power Assisted 4WS {cont'd)
Componont Function & Operation (cont'dl
a Average moving curent control
The 4WS control unit monitors the average moving current ol the motor to protect the system. When the average mov-
ing current exceeds a given value, the 4WS control unii lowers the current to change steering angle of the rear wheels
graduslly (approximately 6 degrees/3o secondsl. When the average moving current to the motor is below the given
value, the rear wheels return to the designated steering angle slowly {approximately 6 degrees/2 minutes).
a Over-voltage control
An increase in battery voltage (due to a voltage regulator failure, for example) could cause excessive actuation of the
motor and grratic control of the r€ar wheels. To prevent this, the 4WS control unjt monitors the voltage. lI it exceeds a
given value, the 4WS control unit slowly returns the rear wheels to the straight ahead position by reducing voltage to the
motor and turns the 4WS indicator light ON.
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