Vehicle steering apparatus and control method therefor

Details Vehicle steering apparatus and control method therefor Vehicle steering apparatus and control method therefor

2006-06-27

2006-06-27

Hurley, Kevin (Department: 3611)

Motor vehicles

Steering gear

With fluid power assist

C180S446000, C701S042000

Reexamination Certificate

active

07066295

ABSTRACT:
When a variable value indicates that a steering characteristic is understeer, a control unit controls a variable transmission ratio device to change a second steering angle such that the greater the understeer indicated by the variable value, the smaller the steering angle of steered wheels relative to the turning angle of a steering wheel becomes. When the differentiated value of the variable value indicates that the understeer is changing to increase, a correction unit corrects the variable value such that the greater the degree of change of the understeer indicated by the differentiated value, the greater the understeer indicated by the variable value becomes. Hence, the attitude of a vehicle in understeer is stabilized with a simple configuration.

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