Layered Control of Lateral Stability for Steer-by-Wire Vehicle
Aiming at the problems of the front wheel angle tracking and the vehicle stability control of the steer-by-wire vehicle,a control strategy of the vehicle lateral stability is proposed.The second-order model of SBW actuator is established,and a Raial basis function network adaptive sliding mode controller of steering actuator is designed to ensure the stability of the controller and the accuracy of the front wheel angle tracking by constructing Lyapunov function.Secondly,a sliding mode controller is designed based on the extended state observer to track the desired yaw rate and calculate the final front wheel angle to improve the vehicle stability.The simulation results of MATLAB/Simulink and CarSim show that the proposed controller improves the steering perfor-mance and driving stability of the vehicle.
Steer-by-Wire SystemStability ControlSliding Mode ControlRadial Basis Function Network
万方数据
维普
