分布式驱动电动汽车复合制动同步协调控制策略OA

To solve the problems of speed asynchrony and body instability among wheels during compound braking of distributed drive electric vehicles(DE Vs)caused by external disturbances or changes in road conditions,the synchronous coordination control strategy for compound braking of DEVs was proposed.The synchronous coordination control strategy for compound braking was designed based on the control objectives of synchronization of yaw rate and wheel speeds,and the synchronous coordination among wheels was improved by applying the additional yaw torque and synchronous coordination torque while maintaining braking stability.Based on the non-singular fast terminal sliding mode control theory,the braking synchronous coordination controller for distributed drive electric vehicles was designed.The compound braking force distribution strategy was redesigned for the folio road surface.The simulation results show that the proposed control strategy can effectively improve the synchronization and coordination among wheels and the stability of the vehicle during compound braking,and it can reduce the risk of wheel locking.