摘要
轮边驱动电动客车采用4个永磁同步电机,通过减速器将驱动力传递至驱动轮。合适的转矩分配控制策略可以提升行车经济性。以轮边驱动电动客车为研究对象,采用加速踏板平滑处理和基于电机电动效率Map图的转矩优化分配方法,并通过AVL Cruise/Simulink联合仿真、dSPACE硬件在环和实车试验进行验证。结果表明,相比于平均转矩分配,采用加速踏板平滑处理和基于电机电动效率Map图的转矩最优分配方法可降低2.35%的能耗,且该控制算法在硬件在环和实车试验中有着较好的实时性,能够满足实车行驶的需求。
For a four-wheel-drive electric bus with four permanent magnet synchronous motors,the driving force is transmitted to the driving wheels through a reducer.A suitable torque distribution control strategy can be developed to improve the driving economy.Therefore,an optimal torque distribution method,which combined the accelerator pedal smoothing processing with the electric motor efficiency Map chart,was applied to the four-wheel-drive electric bus.And then the control algorithm was verified using AVL Cruise/Simulink co-simulation,the dSPACE-based HIL testing and the real vehicle test.The results show that the proposed control algorithm can improve real-time performance and reduce energy consumption.
作者
罗立全
刘平
杨明亮
杨嘉陵
袁方
LUO Liquan;LIU Ping;YANG Mingliang;YANG Jialing;YUAN Fang(School of Mechanical Engineering,Southwest Jiaotong University,Chengdu 610031,China;Engineering Research Center of the Ministry of Education of Advanced Driving Energy-Saving Technology,Southwest Jiaotong University,Chengdu 610031,China)
出处
《汽车工程学报》
2020年第2期107-115,共9页
Chinese Journal of Automotive Engineering
基金
国家自然科学基金“基于目标规划的汽车NVH界面动态分析设计理论与方法研究”(51775451)
四川省科技支撑计划“6米纯电动公交车整车及产业模式关键技术研究”(2015GZ0126)。
