汽车工程 ›› 2023, Vol. 45 ›› Issue (12): 2242-2250.doi: 10.19562/j.chinasae.qcgc.2023.12.006

所属专题: 底盘&动力学&整车性能专题2023年

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四轮转向车辆后轮转角控制方法研究

张佩1,2,3,孙文新1,2,3,胡杰1,2,3,4(),颜伏伍1,2,3,徐骞5,闫涛卫5   

  1. 1.武汉理工大学,现代汽车零部件技术湖北省重点实验室,武汉 430070
    2.武汉理工大学,汽车零部件技术湖北省协同创新中心,武汉 430070
    3.新能源与智能网联汽车湖北省工程技术中心,武汉 430070
    4.湖北隆中实验室,襄阳 441000
    5.东风汽车集团有限公司技术中心,武汉 430056
  • 收稿日期:2023-05-30 修回日期:2023-10-16 出版日期:2023-12-25 发布日期:2023-12-21
  • 通讯作者: 胡杰 E-mail:auto_hj@163.com
  • 基金资助:
    湖北省重点研发计划(2022BAA076)、湖北隆中实验室自主创新研究项目(2022ZZ-21)和广西科技重大专项(2023AA05001)资助。

Research on Rear Wheel Angle Control Method of 4WS Vehicle

Pei Zhang1,2,3,Wenxin Sun1,2,3,Jie Hu1,2,3,4(),Fuwu Yan1,2,3,Qian Xu5,Taowei Yan5   

  1. 1.Wuhan University of Technology,Hubei Key Laboratory of Modern Auto Parts Technology,Wuhan  430070
    2.Wuhan University of Technology,Auto Parts Technology Hubei Collaborative Innovation Center,Wuhan  430070
    3.Hubei Technology Research Center of New Energy and Intelligent Connected Vehicle Engineering,Wuhan  430070
    4.Hubei Longzhong Laboratory,Xiangyang  441000
    5.Dongfeng Motor Company Technology Center,Wuhan  430056
  • Received:2023-05-30 Revised:2023-10-16 Online:2023-12-25 Published:2023-12-21
  • Contact: Jie Hu E-mail:auto_hj@163.com

摘要:

为提高四轮转向车辆在低速时的机动性,建立了包括侧向运动、横摆运动的整车2自由度四轮转向车辆动力学模型,总结归纳了四轮转向车辆后轮转角控制方法,搭建了CarSim和Matlab/Simulink联合仿真平台,使CarSim中建立的整车模型的实际转向状态接近预设的2自由度理想转向状态,通过设置包括前轮角阶跃输入在内的3种工况进行了不同控制方法的仿真对比分析。结果表明:文中所提到的几种控制策略均能改善四轮转向车辆在低速时的机动性,使车辆具有更高的机动运动能力,为找到一种四轮转向车辆后轮转角最优控制策略奠定了基础。

关键词: 四轮转向车辆, 后轮转角控制, 仿真分析

Abstract:

In order to improve the maneuverability of four-wheel steering vehicles at low speeds, a dynamic model of two-degree-of-freedom four-wheel steering vehicle including lateral movement and sideways movement is established and the rear wheel angle control method of four-wheel steering vehicle is summarized and summarized. Then a joint simulation platform of CarSim and Matlab/Simulink is built to make the actual steering state of the vehicle model established in CarSim close to the preset ideal steering state of two degrees of freedom. Finally, the simulation comparative analysis of several control methods is carried out by setting three working conditions, including the front wheel angle step input. The results show that the control strategies mentioned in this paper can improve the maneuverability of four-wheel steering vehicles at low speeds, making the vehicles have higher maneuvering and motion ability, which lays a foundation for finding an optimal control strategy for the rear wheel angle of four-wheel steering vehicles.

Key words: four-wheel steering vehicle, rear wheel angle control, simulation analysis