Method of and apparatus for controlling steering operation of a

Details Method of and apparatus for controlling steering operation of a Method of and apparatus for controlling steering operation of a

1988-07-29

1990-07-03

Chin, Gary

Boots, shoes, and leggings

180 791, 180142, 180140, B62D 504

Patent

active

049396536

ABSTRACT:
The steering operation of a motor vehicle with steerable front and rear road wheels is controlled by steering the rear road wheels with an actuator such as an electric motor which produces a steering force dependent on a deviation of the actual rear wheel steering angle from a target rear wheel steering angle. The rear road wheels are thus controlled with a characteristic dependent on the coefficient of friction of a road on which the motor vehicle travels and the steering speed at which the motor vehicle is steered. Typically, a steering control method comprises the steps of detecting the steering angle of the front road wheels, determining a target steering angle for the rear wheels based on the steering angle of the front road wheels, detecting the actual steering angle of the rear road wheels, calculating a steering angle deviation of the actual rear wheel steering angle from the target steering angle, determining a rear wheel steering force based on the steering angle deviation, and steering the rear road wheels to the target steering angle with the determined rear wheel steering force.

REFERENCES:
patent: 4598788 (1986-07-01), Serizawa et al.
patent: 4645025 (1987-02-01), Ohe et al.
patent: 4652002 (1987-03-01), Kurokawa et al.
patent: 4705131 (1987-11-01), Shibahata et al.
patent: 4706978 (1987-11-01), Ito
patent: 4719396 (1988-01-01), Shimizu
patent: 4782907 (1988-11-01), Morishita et al.
patent: 4819170 (1989-04-01), Shimizu

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