A composite control scheme for automotive Steer-By-Wire system

In this paper, a composite control scheme is developed for the automotive Steer-By-Wire (SBW) system. According to the equivalent second-order SBW system from the steering motor to the steered front wheels, a composite controller combining the proportional-derivative (PD) controller and the feed-forward compensation together can be designed, in the sense that the front wheel steering angle can converge to the steering wheel reference angle asymptotically. The comparative numerical results are presented to illustrate the validity and effectiveness of the proposed control scheme for SBW system.