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对以燃料电池为主电源,蓄电池为辅助电源的混合动力汽车进行建模.采用设定阈值的方法进行功率控制.当车辆需要的功率超过设定阈值时,蓄电池与燃料电池共同输出功率.否则,由燃料电池单独输出功率,制动能量回收为蓄电池充电.应用MATLAB/Simulink软件对FUDS和NEDC两种驾驶循环模式进行仿真,结果显示蓄电池的存电状态可以获得良好的恢复,氢气消耗量大幅度降低.“,”This paper describes modeling of a hybrid power system that supplies energy to an electric vehicle based on a hybrid system that uses a proton exchange membrane (PEM) fuel cell as a primary energy source and a battery pack as an ancillary energy storage system.A threshold approach has been employed for power control.When the power required by the vehicle exceeds a threshold,the battery works with the fuel cell to satisfy the dynamic response of vehicle.Otherwise the fuel cell works alone with regenerative braking enabling recharging of battery capacity.The proposed model has been simulated and tested using Matlab/Simulink software,which predicts that good battery SOC (state of charge)recovery and lower hydrogen consumption levels can be achieved when Federal Urban Driving Schedule (FUDS) and New European Driving Cycle (NEDC) protocols are employed.