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电动车辆用ISG(Integrated Starter/Generator)电机系统稳态和动态性能测试台架实现了基于同一平台的包括电动机驱动和发电特性的测试要求。利用该台架并基于温升理论,分别对混合动力轿车ISG电动机系统进行冷态堵转转矩56N·m。堵转电流18.8A的堵转温升试验,电动机转速1000r/min、转矩72N·m的恒转矩温升试验和电机转速4000r/min、转矩33N·m的恒功率温升试验,得出混合动力轿车ISG电动机系统在给定条件下工作,其温升分别为37K、69.04K和58.25K.均符合设计要求。 相似文献
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为消除传统型直流电动机驱动控制系统在电动汽车应用时存在的缺陷,依据弱磁调速的控制思想,研制出新型的续流增磁电动机及其驱动控制系统。依据该电动机控制系统原理图和试验数据,分析系统弱磁调速原理和工作特性。与传统型串励直流电动机相比,该系统在控制思想、控制结构和再生制动性能方面均具有极大的优越性。热量考核试验表明高频工作中的IGBT开关损耗对控制系统温升影响显著。试验结果和装车试验显示,该系统抗干扰能力强、调节速度快、平稳性好,低速增磁增扭和高速弱磁增速的特性能很好地满足电动公交大客车的动力特性要求。 相似文献
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Energy Transferring Dynamic Equalization for Battery Packs 总被引:1,自引:0,他引:1
The equivalent circuit model of battery and the analytic model of series battery uniformities are setup. The analysis shows that it is the key to maintain small voltage difference between cells in order to improve uniformities. Therefore a new technique combining low voltage difference, big current charging and bi-directional charge equalizer system is put forward and designed. The test shows that the energy transferring dynamic equalization system betters the series battery uniformities and protection during charging and discharging, improves the battery performance and extends the use life of series battery. 相似文献
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Based on analyzing the structure and working principle on electric vehicles(EVs)with dual motors coupled by planetary gears,the control strategy of mode switching was proposed.The power interruption problem on EVs with automatic mechanical transmission(AMT)shifting was resolved.Based on the speed-torque characteristics of the planetary gears and the principle of the auxiliary motor’s zero speed braking,control features of mode switching were introduced.The mode shifting between the main motor mode and dual motors coupled driving were studied.Matlab/Simulink was adopted as a platform to develop the simulation model of EVs with dual motors drive system and 3 gears AMT.Simulation results demonstrated that the power interruption of dual motors drive system was solved during mode switching.The power requirements of EVs were satisfied,too. 相似文献
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