Patent ID: 11926380
Assignee: THYSSENKRUPP PRESTA AG
Field: Transport (Mechanical engineering)
Classification: CPC B | IPC B

Claim 5:
6. A steer-by-wire steering system for a motor vehicle comprising:
an electronically controllable steering actuator that acts on steered wheels;
a control unit;
a feedback actuator to which a driver request for a steering angle can be applied by a driver via a steering input means and which outputs a feedback signal to the steering input means as a reaction to the driver request and to a driving condition of the motor vehicle; and
a device for signal transmission that transmits the driver request to the control unit,
wherein the control unit controls the steering actuator to convert the driver request into a deflection of the steered wheels,
wherein the steer-by-wire steering system is configured to
determine a wheel slip of a front wheel of the steered wheels;
perform a frequency analysis of a profile over time of a wheel slip signal of the front wheel, wherein performing the frequency analysis comprises classifying dominant frequencies via predefined frequency values, and allocate a predefined feedback signal to the dominant frequencies based on the classification; and
determine the feedback signal based on a result of the frequency analysis.