Four-wheel steering system of a motor vehicle

Details Four-wheel steering system of a motor vehicle Four-wheel steering system of a motor vehicle

1988-11-30

1989-11-14

Pekar, John A.

Motor vehicles

Including one or more ski-like or runner members

With at least one surface-engaging propulsion element

180 791, 280 91, B62D 504, B62D 602

Patent

active

048800732

ABSTRACT:
A front-wheel steering system has a hydraulic power cylinder, and a control valve responsive to operation of a steering wheel for controlling oil supplied to the power cylinder so as to assist steering effort. A detector cylinder device is provided for cooperating with the power cylinder. The detector cylinder has a detector piston, a pair of chambers formed on the opposite sides of the detector piston and communicated with chambers on opposite sides of the piston of the power cylinder, and a pair of springs provided in the chambers for urging the detector piston to a neutral position. A potentiometer is connected to one of a rod of the detector piston, thereby producing an output signal in accordance with displacement of the detector piston. In response to the output signal, rear wheels are steered.

REFERENCES:
patent: 4700960 (1987-10-01), Miki et al.
patent: 4776418 (1988-10-01), Winckler et al.

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