基于模糊滑模控制算法的分布式驱动电动汽车横向稳定性控制研究

Research on Lateral Stability Control of Distributed Drive Electric Vehicle Based on Fuzzy Sliding Mode Control Algorithm

针对分布式驱动电动汽车转向工况下系统参数摄动以及外界环境干扰影响车辆横向稳定性的问题,以横摆角速度为控制量,设计模糊滑模控制算法,得到车辆维持稳定所需的附加横摆力矩并进行分配。基于CarSim与Simulink联合仿真,验证所提出的横向稳定控制算法能够有效地提高车辆的横向稳定性,减轻驾驶员操作负担。

In order to solve the problem that the system parameter perturbation and the external environment interference affect the vehicle lateral stability under the steering condition of distributed drive electric vehicle,a fuzzy sliding mode control algorithm is designed with the yaw rate as the control variable,and the additional yaw moment required for the vehicle to maintain stability is obtained and distributed.Based on the joint simulation of CarSim and Simulink,it is verified that the proposed lateral stability control algorithm can effectively improve the vehicle handling stability and reduce the driver’s operating burden.