中文摘要：

利用CRUISE软件建立某纯电动轿车动力系统模型，并进行其动力性能仿真，为动力系统选配提供参考。选定原车变速器2挡作为固定速比传动，计算了该电动汽车的续驶里程，并进行了试验，仿真结果与试验数据很接近，验证了所建模型的合理性。

英文摘要：

A model for the powertrain of a pure electric car is established with CRUISE software, and a simulation on its power performance is conducted, providing references for the selection of powertrain. Taking the 2nd gear of transmission as fixed ratio drive, the driving range of electric car is calculated with corresponding test performed. The simulation results are very close to test data, verifying the rationality of the model built.