Four-wheel steering apparatus for vehicle

Details Four-wheel steering apparatus for vehicle Four-wheel steering apparatus for vehicle

1988-04-22

1989-11-21

Pekar, John A.

Motor vehicles

Including one or more ski-like or runner members

With at least one surface-engaging propulsion element

123339, 180 693, B62D 506

Patent

active

048816132

ABSTRACT:
A vehicle four-wheel steering apparatus including a manually operated steering member and front and rear wheel steering mechanisms coupled with the steering member for producing steering movements in the vehicle front and rear wheels. The rear wheel steering mechanism includes a power assist actuated by an oil pump driven by the vehicle engine. A return spring returns the rear wheels to a neutral position when the power assist is off. A steering condition detector detects the condition of the rear steering mechanism. An engine output power increase mechanism increases the engine output power responsive to a control signal for increasing the engine output power when the rear steering mechanism is actuated.

REFERENCES:
patent: 3556243 (1971-01-01), Susag
patent: 4520777 (1985-06-01), Hatori
patent: 4534707 (1985-08-01), Mitchell
patent: 4545449 (1985-10-01), Fujiwara
patent: 4549400 (1985-10-01), King
patent: 4586581 (1986-05-01), Shibahata
patent: 4601357 (1986-07-01), Miyoshi
patent: 4724810 (1988-02-01), Poirier
patent: 4732231 (1988-03-01), Kanazawa
patent: 4748951 (1988-06-01), Manaka

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