电气工程学报 ›› 2018, Vol. 13 ›› Issue (8): 26-31.doi: 10.11985/2018.08.005

• 理论研究 • 上一篇    下一篇

基于转矩平衡的自适应电子差速控制策略研究

吕长吉,张炳义,冯桂宏   

  1. 沈阳工业大学辽宁省特种电机与高压电器重点实验室 沈阳 110870
  • 收稿日期:2018-02-12 出版日期:2018-08-10 发布日期:2019-11-29
  • 作者简介:吕长吉 男 1990年生,硕士,主要研究方向为电机及其控制。|张炳义 男 1954年生,教授,博士生导师,主要研究方向为特种电机及其控制、电力系统自动化。

Study of Adaptive Electronic Differential Control Strategy Based on Torque-Balance

Lü Changji,Zhang Bingyi,Feng Guihong   

  1. Shenyang University of Technology Key Laboratory of Special Motor and High Voltage Electrical Apparatus of Liaoning Province Shenyang 110870 China
  • Received:2018-02-12 Online:2018-08-10 Published:2019-11-29

摘要:

针对电动汽车电子差速系统,通过对永磁电机和传统的机械差速转向方式进行理论研究分析,提出了基于两台永磁电机作为驱动电机的转矩平衡自适应控制方案。针对现有的电子差速方案在复杂情况下的路面无法进行有效控制的问题,本文参照传统的机械差速给出了解决方案,计算了转向时各个车轮的速度与转向角度变化的关系,以及转向时各个车轮的转速、功率分配关系,给出了各个车轮协调工作的控制方法,从而确定了电子差速的控制策略。

关键词: 电动汽车, 电子差速, 转矩平衡, 自适应, 协调工作, 功率分配

Abstract:

In order to realize the electronic differential(ED) system of electric vehicle(EV), through the study of permanent magnet synchronous motor (PMSM) and traditional mechanical differential, a torque-balance adaptive control method based on PMSM is proposed. For the existing electronic differential method in the complex road conditions can not be effective control, the solution is given with reference to the traditional mechanical differential. The relationship between the speed of each wheel and the change of steering angle is calculated, the speed and power distribution of each wheel are calculated. The control method of each wheel coordination work is given, and the control strategy of electronic difference is determined , and simulated under the Simulink platform. The simulation results show that the electronic differential system can realize the stable steering and straight running of the EV.

Key words: Electric vehicle, electronic differential, torque-balance, self-adaption, coordination work, power distribution

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