Method and apparatus for steering rear wheel for four wheel stee

Details Method and apparatus for steering rear wheel for four wheel stee Method and apparatus for steering rear wheel for four wheel stee

1995-08-10

1998-05-19

Chin, Gary

Data processing: vehicles, navigation, and relative location

Vehicle control, guidance, operation, or indication

Vehicle subsystem or accessory control

280 919, 180410, B62D 600

Patent

active

057549664

ABSTRACT:
A rear wheel steer control method and apparatus for a four wheel steer vehicle executes an opposite phase steer control on the basis of detected values of a front wheel steer angle sensor and a vehicle speed sensor during a low vehicle speed. The opposite phase steering is stopped for a predetermined distance from a start of straight running, then the rear wheel steer angle is controlled by a primary delay control. When the front wheel steer angle is decreased, the primary delay control is stopped in a predetermined condition. Therefore, the four wheel steer vehicle gives a smooth steer feeling to a driver in every driven condition.

REFERENCES:
patent: 4441572 (1984-04-01), Ito et al.
patent: 4679809 (1987-07-01), Ito et al.
patent: 4718685 (1988-01-01), Kawabe et al.
patent: 5019982 (1991-05-01), Furukawa
patent: 5365440 (1994-11-01), Abe et al.

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