The Electric Vehicle Torque Adaptive Drive Anti-Skid Control Based on Objective Optimization

摘要

The vehicle is interfered by the lateral wind in the traditional anti-skid control method, which results in a bad anti-skid control effect of electric vehicle torque drive.For this reason, a method of torque adaptive drive anti-skid control for electric vehicle is proposed.In order to realize the driving force control of distributed driving electric vehicle, the driving motor is modeled and simplified.A battery model was established to analyze the influence of the bus voltage fluctuation on the motor torque response.The power system model is added to the existing vehicle model to complete the simulation model design of the distributed drive electric vehicle.According to the characteristics of the friction circle of the tire, the driving torque of the driving wheel is analyzed.In order to resist the influence of interference factors on vehicles during vehicle movement, through the concept of vehicle stability control, the left and right driving torque is dynamically adjusted by using the obtained ideal driving force distribution ratio of front and rear axles.The simulation results show that the proposed method can effectively increase the driving torque and improve the fitting coefficient of the driving anti-skid torque.