Research on Active Steering Control of Automobile with Steering by Wire
Taking the car with steer-by-wire system as the research object,in order to improve the driving stability of the vehicle on low-adhesion road and high-speed driving,a sliding mode control algorithm based on exponential reaching law is proposed.Based on the Simulink and Carsim platforms,the vehicle model was established,and the frequency response characteristics of the steering executive assembly are analyzed to verify its working stability.According to the fixed steering gain,design the ideal an-gular transmission ratio curve,and design the sliding mode controller to realize the active steering function of the vehicle.The simulation results show that,compared with the results of the PI controller,the control strategy proposed in this paper can realize the active steering function more effectively.
Steering-by-WireIdeal Variable Transmission RatioSliding Mode ControlActive Front Steer
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维普
