现代制造工程 ›› 2024, Vol. 522 ›› Issue (3): 54-61.doi: 10.16731/j.cnki.1671-3133.2024.03.008

• 车辆工程制造技术 • 上一篇    下一篇

俯仰力矩下带有预瞄信息的汽车主动悬架H2/H控制研究

付大田, 袁春元, 严军军, 朱爱鑫   

  1. 江苏科技大学机械工程学院,镇江 212100
  • 收稿日期:2023-04-20 出版日期:2024-03-18 发布日期:2024-05-31
  • 通讯作者: 袁春元,博士,副教授,硕士研究生导师,主要研究方向为汽车悬架动力学及控制。E-mail:1968124683@qq.com
  • 作者简介:付大田,硕士研究生,主要研究方向为面向超车工况的无人驾驶车辆车身姿态控制策略研究。

Research on H2/H control of automotive active suspension with preview information under pitch moment

FU Datian, YUAN Chunyuan, YAN Junjun, ZHU Aixin   

  1. School of Mechanical Engineering,Jiangsu University of Science and Technology, Zhenjiang 212100,China
  • Received:2023-04-20 Online:2024-03-18 Published:2024-05-31

摘要: 主动悬架相比于被动悬架多了一个可以产生主动作用力的装置,在路面不平工况中有效调节刚度和阻尼,提高车辆底盘的减振性能和乘坐的舒适性能。结合轴距预瞄信息并借鉴线性矩阵不等式(Linear Matrix Inequality,LMI)原理,建立了俯仰力矩作用下的半车主动悬架模型,并分别设计了传统H2/H状态反馈控制器和带有预瞄信息的H2/H状态反馈控制器,对主动悬架进行多目标优化控制,在时域的层面上分别对2种控制器的性能进行仿真试验,结果表明2种控制器均能够有效优化主动悬架的性能参数,但带有预瞄信息的H2/H状态反馈控制器优化能力更加突出。

关键词: 主动悬架, 状态反馈控制, 轴距预瞄, H2/H控制

Abstract: Compared to passive suspension,active suspension has an additional device that can generate active force,effectively adjusting stiffness and damping in uneven road conditions,improving the shock absorption performance and riding comfort of the vehicle chassis. The wheelbase preview information is considered and the principle of Linear Matrix Inequality (LMI) is used for reference to establish the model of the half car active suspension under the action of pitching torque,and the traditional H2/H state feedback controller and the H2/H state feedback controller with preview information are designed. The multi-objective optimization control of the active suspension is carried out,and the performance of the two controllers is simulated in the time domain. The results indicate that both controllers can effectively optimize the performance parameters of the active suspension,but the H2/H state feedback controller considering preview information has a more prominent optimization ability.

Key words: active suspension, state feedback control, wheelbase preview, H2/H control

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