电动汽车用电池建模及整车动力性能仿真

为研究电动汽车的电池和整车的动力性能,建立了电动汽车的蓄电池、电机及整车的力学和数学模型,基于ADVISOR软件建立了车辆、电池、电机和整车的仿真模型。根据整车设计技术参数进行车辆行驶性能仿真,选取CYC_ECE循环工况,得出了速度和SOC值变化的仿真结果。与实车试验结果对比表明,建立的模型是合理,动力系统设计可行。

Modeling on Battery of the Electric Car and Simulation of theVehicle Dynamic Performance

In order to study the power performance of the batteries and electric vehicles,the mechanic and mathematical models of battery,motor and finished vehicle for electric vehicle were established based on the ADVISOR software.According to the technical parameters designed for the finished vehicle,the vehicle’s driving performance was simulated,and the CYC_ECE cycle condition was selected to estimate the change of speed and SOC value.Compare to the field test result,it is shown that model are reasonable and the power system design is feasible.