东北大学学报（自然科学版）

东北大学学报:自然科学版 ›› 2015, Vol. 36 ›› Issue (12): 1771-1775.DOI: 10.12068/j.issn.1005-3026.2015.12.022

• 机械工程 • 上一篇    下一篇

车辆悬架和座椅悬架的鲁棒H○∞集成控制策略

张丽萍， 郭立新   

  1. (东北大学 机械工程与自动化学院， 辽宁 沈阳110819)
  • 收稿日期:2015-04-08 修回日期:2015-04-08 出版日期:2015-12-15 发布日期:2015-12-07
  • 通讯作者: 张丽萍
  • 作者简介:张丽萍(1975-)，女，辽宁沈阳人，东北大学博士研究生，辽宁工业大学讲师; 郭立新(1968-)，男，辽宁沈阳人，东北大学教授，博士生导师.
  • 基金资助:
    辽宁省博士启动基金资助项目(20141130).

Robust H∞ Integrated Control Strategy of Vehicle and Seat Suspensions

ZHANG Li-ping， GUO Li-xin   

  1. School of Mechanical Engineering & Automation， Northeastern University， Shenyang 110819， China.
  • Received:2015-04-08 Revised:2015-04-08 Online:2015-12-15 Published:2015-12-07
  • Contact: GUO Li-xin
  • About author:-
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摘要： 在建立“车-椅-人”车辆集成控制模型的基础上，提出一种基于线性矩阵不等式(LMI)优化技术的主动座椅悬架和车辆主动悬架的鲁棒H∞集成控制策略.以人体垂直加速度响应功率谱密度为控制输出目标，以满足车辆悬架动行程范围、车轮动静载荷比响应和所需的集成控制力要求为约束条件，设计出了座椅悬架和车辆悬架集成状态反馈控制器.通过仿真软件MATLAB进行了集成控制系统的仿真分析与比较，证明了该方法的可行性和有效性，为车辆主动悬架系统的研究提供了理论依据.

关键词: 集成控制, 主动座椅悬架, 鲁棒H∞控制, 车辆主动悬架, 线性矩阵不等式, 车辆

Abstract: Based on the integrated models of ‘vehicle-seat-people’， an integrated vehicle seat and suspension robust H∞ integrated control strategy was proposed by using linear matrix inequalities (LMI) technique. An H∞ state feedback controller of integrated vehicle seat and suspension was designed， with the PSD of vertical body acceleration chosen as the controlled outputs and the limits of dynamic suspension deflection， relative dynamic tire load， and integrated control force chosen as the constrained outputs. The MATLAB simulation was employed in the paper， and the simulation results confirm the feasibility and effectiveness. The analysis results provide a fundamental basis for the study of active control suspension system.

Key words: integrated control, active seat suspension, robust H∞ control, active vehicle suspension, linear matrix inequalities, vehicle

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