Rear wheel steering system for vehicle

Details Rear wheel steering system for vehicle Rear wheel steering system for vehicle

1992-03-19

1995-01-31

Teska, Kevin J.

Boots, shoes, and leggings

36442401, B62D 714

Patent

active

053863658

ABSTRACT:
A rear wheel steering system for a vehicle including a yaw rate sensor for detecting a yaw rate of the vehicle and yaw rate feedback controller for controlling a steering angle of rear wheels so that a yaw rate detected by the yaw rate sensor is made equal to a target yaw rate, the rear wheel steering system further including a side slip angle calculator for estimating a side slip angle of the vehicle, a side slip angle controller for controlling the steering angle of the rear wheels to decrease an absolute value of the estimated side slip angle calculated by the side slip angle calculator and a fuzzy controller for controlling the steering angle of the rear wheels based on fuzzy control to decrease an absolute value of a rate of change in the detected yaw rate. This rear wheel steering system can control the steering angle of the rear wheels in a desired manner even when the lateral acceleration is high and the vehicle is turning sharply, and can improve driving stability.

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