Method and apparatus for four wheel steering control utilizing t

Details Method and apparatus for four wheel steering control utilizing t Method and apparatus for four wheel steering control utilizing t

1992-04-06

1995-03-28

Teska, Kevin J.

Boots, shoes, and leggings

180 791, 180140, B62D 504

Patent

active

054023416

ABSTRACT:
A method and system is provided for improving vehicle handling during vehicle operation in the nonlinear region of the front tires for use with a vehicle (10) having manually operable front steerable wheels (12) and electronically controlled rear steerable wheels (14). The method includes the step of calculating a desired rear steer angle based on vehicle parameters, such as vehicle speed and front wheel angle. Preferably, the method also includes the steps of determining if the vehicle is operating in the nonlinear region of the front tires, calculating a handling term if the vehicle is operating in the nonlinear region of the front tires and modifying the desired rear steer angle based on the handling term. The rear steerable wheels are then steered toward the modified desired rear steer angle.

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