Rear wheel steering apparatus for vehicle

Details Rear wheel steering apparatus for vehicle Rear wheel steering apparatus for vehicle

1986-11-07

1988-09-06

Love, John J.

Motor vehicles

Including one or more ski-like or runner members

With at least one surface-engaging propulsion element

180142, 280 91, B62D 602

Patent

active

047686030

ABSTRACT:
A rear wheel steering apparatus for a vehicle has a vehicle speed sensor for detecting a vehicle speed, a front wheel steer angle sensor for detecting a steer angle of front wheels of the vehicle, a rear wheel steer angle driving device for varying the steer angle of each of the right and left rear wheels, and a rear wheel steer angle controller for controlling the rear wheel steer angle driving device. The controller is adapted to calculate a toe-in quantity of the rear wheels as an increasing function of the vehicle speed, calculate a steer angle of each of the right and left rear wheels by the use of the vehicle speed and the steer angle of the front wheels, and control the rear wheel steer angle driving device on the basis of results of these calculating operations such that the steer angle of each of the right and left rear wheels changes by a predetermined angle. Accordingly, it is possible to improve the response to the steering input for turning the vehicle.

REFERENCES:
patent: 4371191 (1983-02-01), Goldberg et al.
patent: 4483547 (1984-11-01), Furukawa
patent: 4557493 (1985-12-01), Sano
Japanese Patent Application 58-214469, Laid Open on Dec. 13, 1983, Inventor: Shibahata et al.
Japanese Patent Application 59-227565, Laid Open on Dec. 20, 1984, Inventor: Kanazawa et al.
Japanese Patent Application 58-192773, Laid Open on Dec. 21, 1983, Inventor: Tani et al.

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