汽车工程 ›› 2025, Vol. 47 ›› Issue (5): 888-896.doi: 10.19562/j.chinasae.qcgc.2025.05.009

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线控转向系统自适应抗扰转角控制策略

赵健1,何聪1,刘枫2,朱冰1,陈静1,陈志成1()   

  1. 1.吉林大学,汽车底盘集成与仿生全国重点实验室,长春 130022
    2.中国第一汽车集团有限公司,长春 130013
  • 收稿日期:2024-01-12 修回日期:2024-08-01 出版日期:2025-05-25 发布日期:2025-05-20
  • 通讯作者: 陈志成 E-mail:chenzhicheng@jlu.edu.cn
  • 基金资助:
    国家自然科学基金(52302471);中国博士后科学基金面上项目(2024M753063);吉林省重大科技专项项目(20220301009GX)

Adaptive Anti-jamming Angle Control Strategy for Steer-by-Wire System

Jian Zhao1,Cong He1,Feng Liu2,Bing Zhu1,Jing Chen1,Zhicheng Chen1()   

  1. 1.Jilin University,State Key Laboratory of Automotive Chassis Integration and Bionics,Changchun 130022
    2.Institute of China FAW Group Co. ,Ltd. ,Changchun 130013
  • Received:2024-01-12 Revised:2024-08-01 Online:2025-05-25 Published:2025-05-20
  • Contact: Zhicheng Chen E-mail:chenzhicheng@jlu.edu.cn

摘要:

针对线控转向(steer by wire, SBW)系统主动转向时面临的系统参数不确定性、轮胎回正力矩阻碍、转向电机电磁特性耦合等非线性干扰问题,提出一种自适应抗扰转角控制策略。采用径向基函数神经网络和鲁棒滑模理论设计外环转角控制器,自适应补偿SBW系统参数不确定性和轮胎回正力矩阻碍。在内环电流控制器中引入线性自抗扰控制应对转向执行电机电磁特性耦合问题,提高SBW系统动态响应性能。仿真和硬件在环试验结果表明,设计的控制策略能够帮助SBW在多种工况中维持转角稳态跟随误差在1.5°内。

关键词: 车辆工程, 线控转向系统, 转角跟踪控制, 非线性干扰, 自适应控制, 硬件在环

Abstract:

An adaptive anti-disturbance angle control strategy is proposed to address the nonlinear disturbances such as system parameter uncertainty, tire return torque obstruction, and coupling of electromagnetic characteristics of steering motors, which are faced by the active steering of Steer-by-Wire (SBW) system. A radial basis function neural network and robust sliding mode theory are used to design the outer-loop cornering controller to adaptively compensate for the SBW system parameter uncertainty and tire return torque obstruction. Linear self-immunity control is introduced into the inner-loop current controller to cope with the coupling problem of electromagnetic characteristics of the steering actuator motor so as to improve the dynamic response performance of the SBW system. The simulation and hardware-in-the-loop test results show that the designed control strategy can help the SBW maintain the cornering steady state following error within 1.5° under various operating conditions.

Key words: vehicle engineering, steer-by-wire system, angle tracking strategy, nonlinear disturbance, adaptive control, hardware-in-the-loop