Patent ID: 6041882
Filing Date: 2000-03-28
Classification: B62D

Abstract:
A steering system for the steered wheels of vehicles, comprising a steering means, a desired wheel angle position transmitter operatively connected to said steering means providing a desired wheel angle value, a motorized actuating unit controlled as a function of said desired wheel angle position value for the steering of said steered vehicle wheels, a hand-force control operatively connected to said steering means for the generation of a steering wheel hand force that can be felt at said steering means dependent on a signal sum comprising a first signal generated by a first signal-transmitter arrangement and dependent on the actual position of the steering means and on the speed of vehicle travel, and a second signal, generated by a second signal-transmitter arrangement dependent on the rate of actuation of said steering means and on the speed of vehicle travel, said first and second signal transmitter arrangements each generating, in the event of a fault, an output signal with a predetermined fixed value as it is provided during fault-free vehicle operation at high vehicle speeds and at large steering angles or rates of actuation of said steering means.