电动公交客车双电机驱动系统设计匹配及仿真研究

Dual-motor Propulsion System Design Match and Simulation Research for Electric City Bus

针对目前大型电动公交客车驱动系统存在的不足,设计匹配一种双电机驱动系统。以某城市电动公交客车为研究对象,对电驱动系统进行参数选型匹配,并基于AVL-Cruise软件平台,搭建整车仿真模型,制定双电机驱动系统转矩分配控制策略,对车辆动力性和经济性进行仿真计算分析。结果表明,该双电机驱动系统参数匹配合理,使车辆具有良好的动力性;该双电机驱动系统可通过转矩优化分配控制策略有效改善车辆的经济性。

In view of the propulsion system＇s shortcomings on the current large electric city bus, a dual-motor propulsion structure is designed and matched. This paper takes a city electric bus as research object to match the parameters for dual-motor propulsion system. Besides, the vehicle＇s simulation model and the torque distribution control strategy of propulsion system are built in software platform AVL-Cruise, to simulate and analyze the vehicle＇s dynamic property as well as the fuel economy. The results show that the parameter matching of the dual-motor propulsion system are rational, which enables the vehicle with good dynamic property, and it can improve vehicle＇s fuel economy by the distribution of torque optimization control strategy.