电机效率最优的双电机汽车驱动扭矩分配控制策略  

Torque distribution control strategy for distributed drive electric vehicles based on the best motor efficiency

作　　者：王保华 万惠修 邓召文 吴华伟 朱远志[4] WANG Baohua;WAN Huixiu;DENG Zhaowen;WU Huawei;ZHU Yuanzhi(College of Automotive Engineering,Hubei University of Automotive Technology,Shiyan 442002,China;Hubei Longzhong Laboratory,Xiangyang 441000,China;Hubei University of Arts and Science,Xiangyang 441000,China;North China University of Technology,Beijing 100144,China)

机构地区：[1]湖北汽车工业学院汽车工程学院,湖北十堰442002 [2]湖北隆中实验室,湖北襄阳441000 [3]湖北文理学院汽车与交通工程学院,湖北襄阳441000 [4]北方工业大学机电工程学院,北京100144

出　　处：《重庆理工大学学报（自然科学）》2024年第3期84-92,共9页Journal of Chongqing University of Technology：Natural Science

基　　金：国家自然科学基金项目(52072116);湖北省重点研发计划项目(2020BAB141)。

摘　　要：为提高前后轴分布式双电机电驱动汽车(DDEV)行驶中的经济效能,以某款双电机汽车作为研究对象,以前后电机效率最优为目标,提出了一种驱动扭矩分配策略,针对2电机工作时的协调控制进行研究。在Cruise软件中建立DDEV整车模型,与Simulink软件中搭建的策略模型进行联合仿真,在NEDC和WLTC循环工况下进行仿真测试。仿真结果表明,与前后电机驱动扭矩平分策略相比,使用文中提出的驱动扭矩分配策略的双电机汽车在2种循环工况下的电能消耗分别降低6.7%和4.5%,2电机在高效区间工作的占比分别提升12.4%和47.3%,整车电机在2种循环工况下的平均效率相应提升14.2%和17.8%,验证所提策略对提高车辆经济性能的有效性。To improve the efficiency of front and rear axle distributed dual electric vehicles(DDEV)during driving,this paper proposes a driving torque distribution strategy with a certain dual motor vehicle as the research object.Research on coordinated control during the operation of two motors is conducted.A DDEV vehicle model in Cruise software is built and joint simulation is conducted with the strategy model built in Simulink software.Simulation testing is conducted under NEDC and WLTC cycle conditions.Our simulation results show the energy consumption of the dual motor vehicle using this strategy is reduced by 6.7%and 4.5%respectively under two cycle conditions,and the proportion of the two motors operating in the efficient range is increased by 12.4%and 47.3%respectively compared with the data of the front and rear motor drive torque sharing strategy.The average efficiency of the entire vehicle motor under two cycle conditions is accordingly increased by 14.2%and 17.8%,demonstrating its effectiveness in improving electric vehicles’energy efficiency.

关 键 词：双电机汽车 扭矩分配 电机效率 经济性能 

分 类 号：U46.1[机械工程—车辆工程]