Front and rear wheel steering device for vehicle

Details Front and rear wheel steering device for vehicle Front and rear wheel steering device for vehicle

1986-03-27

1987-08-18

Mitchell, David M.

Land vehicles

Wheeled

Running gear

B62D 602

Patent

active

046872167

ABSTRACT:
In a front and rear wheel steering device for vehicle for variably controlling the steering angle ratio of rear wheels relative to the steering angle of front wheels according to a certain mathematical function of vehicle speed in such a manner that the rear wheels are steered in opposite phase relationship in a low speed range and in same phase relationship in a high speed range, by providing a selection means for manually selecting a special mathematical function for an extremely low speed range which will cause a same phase relationship at an extremely low speed and a smooth transition to the certain mathematical function, parking the car along a curbstone and changing the lateral position of the vehicle in a limited space are simplified since the rear part of the vehicle will not swing laterally. Since such a manual setting is not suitable for low to medium speed range, a means for automatically releasing the manual selection may be advantageously provided to the system to the end of reducing the burden on the driver.

REFERENCES:
patent: 4566710 (1986-01-01), Farakawa et al.

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