Patent ID: 6336519
Filing Date: 2002-01-08
Classification: B62D

Abstract:
A motor vehicle steering system, comprising:a manual steering device arranged to be operated on a driver side of a motor vehicle, a steering adjusting assembly for motor-operated steering adjustment of steered vehicle wheels of the motor vehicle, a desired steering angle value generator operated by the manual steering device, an actual steering angle value generator operated by the steered vehicle wheels, an automatic control system configured to operate the steering adjusting assembly as a function of a desired-actual value comparison of the steering angle, a manual force adjuster configured in correlation to forces which occur between the steered vehicle wheels and the steering adjusting assembly, to cause a reaction force at the steering handle as well as an adjusting stroke of the steering handle which is correlated with steering angle changes of the steered vehicle wheels, and an emergency system configured to become automatically operative in the event of system-related disturbances, for at least one of mechanical and hydraulic forced coupling of the manual steering device and the steered vehicle wheels with one another, where, on the driver side, the emergency system, in a centering mode is operable to the centered, while an assignment caused by the switching-on of the emergency system is changed between the positions of the steering handle and of the steered vehicle wheels, such that, relative to the at least one of the steered vehicle wheels and in the straight-ahead position of the steered vehicle wheels, the manual device assumes a defined position.