河北大学学报(自然科学版) ›› 2019, Vol. 39 ›› Issue (5): 554-560.DOI: 10.3969/j.issn.1000-1565.2019.05.017

• • 上一篇    

纯电动汽车用轮毂无刷电机转矩控制系统的仿真

王涛1,崔媛媛2,李志远1   

  • 收稿日期:2019-03-04 出版日期:2019-09-25 发布日期:2019-09-25
  • 作者简介:王涛(1982—),男,山东泰安人,河北大学副教授,主要从事新能源电动汽车关键技术理论等方向研究. E-mail:taowang19820905@163.com
  • 基金资助:
    河北省重点研发计划项目(18214414)

Simulation of the torque control system of in-wheel BLDC motor for electric vehicle

WANG Tao1, CUI Yuanyuan2, LI Zhiyuan1   

  1. 1. The Research Center of New Energy Vehicle, Hebei University, Baoding 071002, China; 2.Baoding Branch Office, China National Tobacco Corporation, Baoding 071000, China
  • Received:2019-03-04 Online:2019-09-25 Published:2019-09-25

摘要: 针对电动汽车用轮毂无刷直流电机的转矩控制进行研究,在满足驾驶员需求功率下,对估算得到的电机输出转矩进行闭环控制,达到了电机的目标输出转矩,能简化控制系统、实现准确控制,提高了系统瞬态响应.利用MATLAB/Simulink搭建了车辆行驶在ECE40行车状态时的动态仿真平台.仿真结果显示:建立的电机转矩控制系统能够控制电机满足驾驶员控制车速的需求,且估算到的输出转矩与电机实际的输出转矩较好的吻合,能使轮毂电机高效、稳定、快速地产生电磁转矩,改善了电动汽车驱动系统性能.

关键词: 纯电动汽车, 无刷直流电机, 转矩控制, 仿真, 电机驱动系统

Abstract: The torque control system of in-wheel BLDC motor for electric vehicle was researched. The control system aims at controlling motor output torque and meeting required motor output torque that is transformed by driver required power. The characteristic of motor control system lies in the feedback of motor output torque.The MATLAB/Simulink software is used to build a vehicle simulation platform driving ECE40. The simulation results show that the developed motor torque control system can control motor to meet the driverneed of controlling vehicle speed, and the estimation law can estimate the motor output torque successfully. The strategy for BLDC motor control improves the performance of electric vehicle drive system, and make the motor generate the electric magnetic torque efficiently, steadily and quickly.

Key words: electric vehicle, brushless DC motor, control system, torque control, simulate

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