吉林大学学报(工学版) ›› 2018, Vol. 48 ›› Issue (1): 11-19.doi: 10.13229/j.cnki.jdxbgxb20170525

• 论文 • 上一篇    下一篇

基于横摆力矩控制的电动轮汽车转弯节能控制

孙文, 王庆年, 王军年   

  1. 吉林大学 汽车仿真与控制国家重点实验室,长春 130022
  • 收稿日期:2017-05-22 出版日期:2018-02-26 发布日期:2018-02-26
  • 通讯作者: 王军年(1981-),男,教授,博士.研究方向:节能与新能源汽车.E-mail:junnianwang@126.com
  • 作者简介:孙文(1989-),女,博士研究生.研究方向:节能与新能源汽车.E-mail: sun_wendy@126.com
  • 基金资助:
    国家自然科学基金项目(51205153); 吉林省自然科学基金项目(20140101072JC)

Yaw-moment control of motorized vehicle for energy conservation during cornering

SUN Wen, WANG Qing-nian, WANG Jun-nian   

  1. State Key Laboratory of Automotive Simulation and Control, Jilin University, Changchun 130022, China
  • Received:2017-05-22 Online:2018-02-26 Published:2018-02-26

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摘要： 首先,研究了车辆转弯时转弯阻力产生的机理,提出了影响转弯阻力的因素。然后,提出了通过改变纵向力分配减小转弯阻力的方法。最后,基于车身稳定性的约束,通过理论分析和计算机仿真,对比了纵向力分配前、后车辆转弯过程中的能耗,并采用遗传算法对后轴轮间的转矩分配系数进行了优化。研究表明,通过对电动轮汽车的纵向力分配,可以降低电动汽车在转弯过程中的能耗,提高转弯机动性。

关键词: 车辆工程, 电动汽车, 四轮独立驱动, 横摆力矩控制, 转弯阻力, 遗传算法

Abstract: In this paper, based on the study of vehicle dynamics during turning, the reason that causing extra driving resistance was found. It was proposed that a counter yaw moment can mitigate this extra driving resistance during turning. For a vehicle with independent electric drive for left and right wheels on rear axle, driving power can be reduced by means of proper torque distribution between the left and right wheels. By theoretical analysis and simulation, he optimal torque distribution coefficient of the real axle was obtained by genetic algorithm, by which the vehicle consumes the lowest power during turning without causing instability. This research shows that the vehicle energy consumption can be reduced, and turning maneuverability can be improved by the yaw moment control.

Key words: vehicle engineering, electric vehicle, four-wheel independent drive, yaw moment control, turning resistance, genetic algorithm

中图分类号: 

  • U461.1
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