Patent ID: 7154385
Filing Date: 2006-12-26
Classification: B62D

Abstract:
1. A method for providing active front steering for a vehicle and trailer combination during a back-up maneuver, said method comprising: determining a steering wheel angle signal indicative of a steering hand-wheel of the vehicle; determining a vehicle speed signal indicative of the speed of the vehicle; using the steering wheel angle signal and the vehicle speed signal to calculate a hitch angle command signal; measuring an actual hitch angle between the vehicle and the trailer and providing a measured hitch angle signal; comparing the hitch angle command signal to the measured hitch angle signal to provide an error signal; determining a corrected front road wheel angle signal based on the error signal and the vehicle speed signal; using the corrected road wheel angle signal to generate an actuator angle signal; and using the actuator angle signal and the steering wheel angle signal to control an active front wheel steering actuator to steer the vehicle-trailer combination during the back-up maneuver.