Patent ID: 8234042

Claim:
A method for controlling a by-wire steering system having a steering device that is actuated by a steering actuator, a steering angle sensor, and a controller in communication with the steering actuator and the steering angle sensor, wherein the controller is configured for commanding a target actuator angle from the steering actuator to thereby modify a final steering angle of a pair of road wheels of a vehicle, the method comprising: measuring an input steering angle to the steering device using the sensor; measuring a speed of the vehicle; determining an angular saturation limit of the pair of road wheels; comparing the measured input steering angle from the sensor to the angular saturation limit; commanding, via the controller, a first target actuator angle from the steering actuator when the input steering angle is less than the angular saturation limit; and commanding, via the controller, a second target actuator angle from the steering actuator when the input steering angle is greater than the angular saturation limit.