Patent ID: 7035722

Claim:
A method for operating a steering system for a motor vehicle, having at least one steerable vehicle wheel, having a change speed gear mechanism in the transmission path between a steering wheel and the vehicle wheel and having a servomotor (M), wherein a set point torque predefined value is fed to the servomotor (M) as a function of the manual steering torque (M Hand ) generated by the driver, in order to generate a motor actuating torque (M Servo ), wherein a hysteresis torque (M Hys ) which at least approximately compensates for the friction in the steering system is taken into account in the torque predefined value for the servomotor (M) in accordance with the function: M soll, komp =M soll +M Hys where M soll, komp is the compensated set point torque which is to be fed to the servomotor, M soll is the noncompensated set point torque which is to be determined from the manual steering torque (M Hand ) and M Hys is the hysteresis torque, and wherein: the hysteresis torque (M Hys ) is acquired from a hysteresis characteristic curve as a function of the noncompensated set point torque (M soll ).