一种采用电压控制轮毂电机驱动电动汽车的电子差速器  

An Electronic Differential of In-Wheel Motor Drive Electric Vehicle Based on Voltage Control

作　　者：廖文良[1] 沈汉鑫 洪剑锋 林再法 罗大庆 陈文芗 LIAO Wen-liang;SHEN Han-xin;HONG Jian-feng;LIN Zai-fa;LUO Da-qing;CHEN Wen-xiang(School of Science,Jimei University,Xiamen 361021,China;School of Opto-electronic and Communications Engineering,Xiamen University of Technology,Xiamen 361024,China;School of Aerospace Engineering,Xiamen University,Xiamen 361102,China)

机构地区：[1]集美大学理学院,福建厦门361021 [2]厦门理工学院光电与通信工程学院,福建厦门361024 [3]厦门大学航空航天学院,福建厦门361102

出　　处：《唐山师范学院学报》2020年第6期41-46,58,共7页Journal of Tangshan Normal University

基　　金：国家自然科学基金资助项目(51777177);福建省科技厅高校产学研项目(2019H6024);福建省中青年教师教育科研项目(JAT170332)。

摘　　要：针对前轮转向,后轮驱动轮毂电动汽车的特点,提出了一种采用控制轮毂电机驱动电压的电子差速驱动策略。该策略利用直流电机机械特性,将路面条件和车载重量发生变化的情况转变为电机驱动力矩的变化,自动调节驱动轮毂电机的转速,保证车轮瞬时转速能够适应各种路面情况。软件仿真模拟和样车道路实验结果表明,该技术能较好解决驱动轮滑转的问题。According to the characteristics of front-wheel steering and rear-wheel driving electric vehicle,an electronic differential strategy is proposed by controlling the driving voltage of in-wheel motor.Based on the mechanical characteristics of the DC motor,the strategy can automatically adjust the speed of the motor by converting the factors such as road conditions,the change of vehicle load into the change of the motor torque.Therefore,the proposed electronic differential can solve the problem of wheel slipping and ensure that the wheel instantaneous speed can be adapted to various road conditions.In this paper,based on the structure of no vehicle controller and no master node,an electronic differential system for hub electric vehicle is designed and an experimental prototype is made.

关 键 词：轮毂电机驱动电动汽车 电子差速器 驱动转矩 

分 类 号：U469.72[机械工程—车辆工程]