Method and control unit for operating an actuator of a steer-by-wire steering system

A control unit for controlling an actuator of a steer-by-wire steering system of a motor vehicle, the control unit comprising:

• an interface configured to detect a steering angle that represents an instantaneous steering angle of at least one wheel of a motor vehicle;
• a further interface configured to detect a steering angle demand, which represents an instantaneous steering angle change due to a driver's wish or a change determined by the control unit or another control unit;
• a unit configured to determine a limit value of an acceleration of the drive mechanism of the actuator of a steer-by-wire steering system, which represents an instantaneously limited acceleration and to determine a limit value of a drive mechanism of the actuator as a function of the instantaneous steering angle;
• a unit configured to activate the actuator in order to set a steering angle of at least one wheel as a function of at least the steering angle demand, and using the limit value of the acceleration of the drive mechanism;
• and
• an interface configured to detect a speed that represents an instantaneous speed of the motor vehicle.