Four Wheel Steering System with Rear Wheel Steer Angle Controlled as a Function of Steering Wheel Angle 860625

This paper discusses the desired steer angle characteristics of rear wheels in the new concept of four wheel steering system in which the rear wheels are controlled as a function of the steering wheel angle in a manner that the rear wheels are steered in the same direction as the front wheels when the steering wheel angle is kept within a small range while the rear wheels are steered in the opposite direction to the front in the case the steering wheel angle is steered over a larger range.
This paper also indicates the basic principle of the four wheel steering system and lists items for consideration in determining the function, and then presents a variety of effects the new steering system produces on operating performances based upon a series of proving ground tests.


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