某纯电动汽车电机-变速器总成研究

Study on the motor-transmission power train for electric car

针对纯电动汽车动力总成设计问题,对纯电动汽车的动力总成选型、电机参数、变速器参数等方面进行了研究,从经济性、动力性、制造成本的角度归纳了电机-变速器总成相较于电机-减速器具有的优势。在设计动力总成参数的过程中,从动力性、经济性、舒适性、总成尺寸等方面进行了分析,提出了一套纯电动汽车动力总成的设计理论;在Matlab中建立了模型,对设计的参数进行了仿真;最后将动力总成进行了装车实验。实验结果表明:根据该设计理论所设计的动力总成能够完全满足技术目标。

Aiming at the design of the power train of electric vehicle,the power train selection,motor parameters and transmission parameters of the pure electric vehicle were researched,the advantages of the motor-transmission power train compared to the motor-reducer power train were analyzed from the points of economy,power and manufacturing cost. In the process of designing power train parameters,the design theory of power train of electric vehicle was put forward from the angles of power,economy,comfort and power train size. The model was established by Matlab and the parameters was simulated by the model. The experiment results indicate that the power train designed meets the requirements of performance targets.