Rear-wheel steering apparatus for vehicles

Details Rear-wheel steering apparatus for vehicles Rear-wheel steering apparatus for vehicles

1993-01-29

1994-09-13

Hill, Mitchell J.

Motor vehicles

Including one or more ski-like or runner members

With at least one surface-engaging propulsion element

280 91, B62D 700

Patent

active

053460308

ABSTRACT:
A rear-wheel steering apparatus having a high-speed step motor revolving in accordance with a target steering angle ratio and a power cylinder for converting a change of the revolved angle of the motor to an amount of steering angle of rear wheels with a power assist by a hydraulic power. When a failure is detected in the rear-wheel steering system when the steering angle ratio is changed from in-phase to opposite phase, an oil pressure is released out of the power cylinder simultaneously with an interruption of current supply to the motor.

REFERENCES:
patent: 4896737 (1990-01-01), Kanazawa et al.
patent: 4953649 (1990-09-01), Kawai et al.
patent: 4953652 (1990-09-01), Ohmura et al.
patent: 5048627 (1991-09-01), Eguchi et al.

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