基于驱动转矩调整的电动汽车电子差速器设计  

Design of Electric Vehicle Electronic Differential Based on Drive Torque Adjustment

作　　者：李全民 LI Quanmin(College of Intelligent Manufacturing and Electrical Engineering,Guangzhou Institute of Science and Technology,Guangzhou Guangdong 510540,China)

机构地区：[1]广州理工学院智能制造与电气工程学院,广东广州510540

出　　处：《汽车零部件》2023年第3期1-5,共5页Automobile Parts

基　　金：广州理工学院2021年科研重点项目(2021KZ001)。

摘　　要：在建立电动汽车动力学模型的基础上,设计了一种用于轮毂驱动电动汽车的电子差速器,该电子差速器以驱动轮滑移率为控制目标,以驱动转矩为控制输入。利用Matlab/Simulink对其进行了仿真分析,并与传统驱动转矩平均分配的机械差速器进行了对比。结果表明:采用该电子差速器的电动汽车,其转向通过性和操控性明显改善,对道路附着条件的利用也有较大提高。On the basis of establishing the dynamic model of electric vehicle,an electronic differential for hub driven electric vehicle was designed.The electronic differential took the slip ratio of driving wheel as the control target and the driving torque as the control input.It was simulated and analyzed by using Matlab/Simulink,and compared with the traditional mechanical differential with the average distribution of driving torque.The results show that the electric vehicle with this electronic differential significantly improves its steering trafficability and handling,and also greatly improves the utilization of road adhesion conditions.

关 键 词：电动汽车 电子差速器 驱动转矩 滑移率 

分 类 号：U463.674[机械工程—车辆工程]