Method for detecting steering wheel torsional vibrations during operation of steering system in vehicle, involves determining presence of steering wheel torsional vibration based on determined dominant interference frequency

摘要

The method involves detecting an actual position or actual speed of a rotor (15) of a controllable torque adjuster of a steering system (1). A dominant interference frequency is determined based on the detected rotor position or rotor speed. Presence of steering wheel torsional vibration is determined based on the determined frequency. A vibration mode of the frequency is determined and considered for determination of the presence of steering wheel torsional vibration. The determination of the interference frequency is carried out as a function of amplitude of the rotor position. An independent claim is also included for a device for detecting steering wheel torsional vibrations during operation of a steering system in a vehicle.