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8-8
STEERING SYNCHRONIZER FHPS
I General
1. The steering angle sensor located at the lower side of the steering wheel and the tire angle sensor
provided to the upper part of the center shaft turning detect the steering angle and the tire angle
respectively and correct offset relation, if any, of both angles by opening the solenoid valve.
2. To correct the offset relation, the controller sends command to the solenoid valve to form a bypass
circuit to return part of hydraulic oil to be supplied to the PS cylinder to the tank. This system retains
relation between the steering knob position and the tire angle at a prescribed level.
3. Correction may not be made for safety reason depending on the traveling speed and other conditions.
4. If the knob position should be offset after maintenance service, etc., the steering position will be
automatically corrected by turning the key switch ON and turning the steering wheel to lock-to-lock.
I Schematic diagram of control block
Steering knob
Steering wheel angle sensor
Solenoid valve
Tire angle sensor
P
R
L
T
Vehicle speed sensor
DM
DM
Main controller
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