The energy management system for hybrid power system( HPS) used in electric vehicles was studied based on the Cruise/Simulink software. For supplying the HPS for electric vehicles, the model of electric vehicle e-quipped with HPS was built by Cruise software when taking the principles that the battery is used for the main power source and the ultracapacitor works as a load balance. And then, based on the vehicle' s power demand, the parameters of the power system were matched and the energy management system was developed. The results based on the Cruise and Simulink software co—simulation show that HPS, which may avoid the big current impact on the battery well and significantly optimize the operation efficiency of HPS, improve the braking regenerative efficiency and extends the battery' s lifespan better, compared with battery only power system.%研究电动车用复合电源能量管理系统设计问题.为将复合电源技术应用于电动汽车上,以动力电池作为主要能源、超级电容作为负载调控的方式,利用Cruise软件搭建了装用复合电系统的电动汽车整车模型；继而基于工况下整车的功率需求,开展复合电源系统的参数匹配工作,并最终在Simulink软件上进行了能量管理系统的开发,建立装有复合电源系统的电动车辆整车仿真模型.进行联合仿真结果表明,相比单一动力电池系统,复合电源系统可以有效地降低动力电池的大电流冲击,优化电源系统的工作效率,提高系统的制动回收效率,延长动力电池的使用寿命.
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