International Journal of Mechanical Engineering

The steer-by-wire system is a crucial component of modern automotive technology, and precise control of its dynamic performance is vital for enhancing driving safety and handling performance. In this context, the robust control method for rack dynamic clearance has become a hot research topic. Traditional control methods often struggle to effectively address system uncertainties and external disturbances. This paper proposes a rack dynamic clearance control method based on robust control theory. By constructing uncertainty models and external disturbance models, a robust controller is designed to maintain system stability and dynamic performance. Simulation results show that this method can significantly improve the control accuracy of rack dynamic clearance and enhance the system's anti-disturbance capability against external disturbances.

Steer-by-wire system; Rack dynamic clearance; Robust control; External disturbance; System stability