Four wheel steer control system for four wheel drive vehicle, re

Details Four wheel steer control system for four wheel drive vehicle, re Four wheel steer control system for four wheel drive vehicle, re

1986-11-18

1987-12-29

Pekar, John A.

Motor vehicles

Having four wheels driven

180140, 3644241, B60K 2308

Patent

active

047154667

ABSTRACT:
A vehicle is equipped with a four wheel drive system having a transfer, a four wheel steer system for steering front wheels and rear wheels, a sensor for sensing a condition of a driving torque distribution between the front wheels and rear wheels, by sensing a condition of the four wheel drive system, and a controller for controlling a rear wheel steer angle in accordance with the condition of the driving torque distribution by commanding the four wheel steer system in such a manner as to maintain the desirable weak understeer characteristic irrespective of change in the driving torque distribution at least when a vehicle speed is greater than a predetermined value.

REFERENCES:
patent: 3596730 (1971-08-01), Cecce

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