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为研究微型纯电动汽车的动力性能,对比分析了用于电动汽车的几种不同电池和电机,选取了能量密度大、使用性能优越的锂离子电池和体积小、效率高的永磁同步电机组成电动车的能量和动力源。建立了微型纯电动汽车的蓄电池、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,估算出该工况下车辆的电量消耗及续驶里程,并对动力性能的影响因素进行了分析。对比仿真结果与实车试验结果表明,所建立的模型是合理的,动力系统设计是可行的。
In order to study the dynamic performance of a miniature electric vehicle, several different batteries and motors for electric vehicles were comparatively analyzed. A lithium ion battery with high energy density and superior performance was selected and a permanent magnet synchronous motor with small volume and high efficiency Electric vehicle energy and power source. The mechanical and mathematical model of accumulator, motor and vehicle were established. The simulation model of vehicle, battery, motor and vehicle was established based on ADVISOR software. According to the technical parameters of vehicle design, the running performance of the vehicle is simulated. CYC_ECE cycle condition is selected to estimate the power consumption and driving range of the vehicle under this working condition. The influencing factors of dynamic performance are also analyzed. The simulation results and real vehicle test results show that the established model is reasonable and the powertrain design is feasible.