Apparatus for controlling steer angle of rear wheels of vehicle

Details Apparatus for controlling steer angle of rear wheels of vehicle Apparatus for controlling steer angle of rear wheels of vehicle

1986-04-21

1987-10-20

Love, John J.

Land vehicles

Wheeled

Running gear

180140, B62D 700

Patent

active

047009608

ABSTRACT:
A rear wheel steer angle controlling apparatus for vehicles having steerable front and rear wheels, adapted for controlling the steer angle or rear wheels in response to the operation of the steering wheel for steering the front wheels. The speed with which the steering wheel is turned is detected and compared with a reference value which varies in accordance with changes in a physical amount related to the vehicle velocity. When the speed of operation of the steering wheel is larger than the reference value, a rear wheel steer angle is formed in the counter direction to the direction of the front wheel steer angle, so that the response to the steering input for turning the vehicle is improved. Conversely, when the speed of operation of the steering wheel is smaller than the reference value, a rear wheel steer angle is formed in the same direction as the front wheel steer angle, thus enhancing the stability of the vehicle running straight.

REFERENCES:
patent: 4418780 (1983-12-01), Ito et al.
patent: 4441572 (1984-04-01), Ito et al.
patent: 4522417 (1985-06-01), Sano et al.
patent: 4527654 (1985-07-01), Shibahata et al.
patent: 4552239 (1985-11-01), Kanazawa et al.
patent: 4566710 (1986-01-01), Furukawa et al.
patent: 4572316 (1986-02-01), Kanazawa et al.
patent: 4597462 (1986-07-01), Sano et al.
patent: 4598788 (1986-07-01), Serizawa et al.

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