Abstract: The matching of the pure electric vehicle power system is the key in the development process of electric vehicles. The matching design of the power system of a pure electric vehicle is carried out. According to the design requirements, the parameters of the driving motor, driving scheme, transmission ratio, etc are matched. AVL Cruise software is used to model and simulate the whole vehicle, analyze the simulation results, and further determine the optimal transmission ratio scheme. The results show that the selected power system scheme meets the design requirements, and the transmission ratio scheme has better power performance and economy.

Key words: AVL Cruise; Pure electric vehicle; Power system; System matching

摘要： 动力系统匹配是纯电动汽车开发过程中的关键，文章按照某纯电动汽车的设计性能要 求，拟对该车的动力系统进行匹配设计，从而达到较好的动力性能与经济性能。文章根据设 计要求进行理论计算，并对驱动电机、驱动方案、传动比等主要部件进行参数匹配，再运用 AVL Cruise 软件进行整车建模、仿真，对不同方案的仿真结果进行了分析，择优确定最优化 方案。结果表明，该车所选用的动力系统方案满足设计要求，且传动比方案具有较好的动力 性和经济性。

关键词: AVL Cruise；纯电动汽车；动力系统；系统匹配