摘要
针对带节流阻尼孔和附加气室的车辆空气悬架半主动控制问题,基于鲁棒控制理论,提出了考虑参数不确定性的车辆1/2空气悬架半主动控制策略;基于开关控制方法建立了期望控制力与节流阻尼孔面积的映射关系,实现阻尼力对期望控制力的跟踪;利用前轴车轮的路面信息作为后轴车轮的预瞄信息,建立了含路面预瞄信息的增广系统;开展了考虑路面预瞄信息和参数不确定性的空气悬架半主动控制系统数值仿真。结果表明,提出的控制策略不仅能改善悬架的平顺性,而且对参数不确定性具有较强的鲁棒性。
Aiming at the semi-active control problem of vehicle air suspension with throttle damping hole and additional air chamber,based on the robust control theory,a semi-active control strategy for vehicle 1/2 air suspension considering parametric uncertainty was proposed.The mapping relationship between expected control force and orifice area was established based on the switch control method to realize the damping force’s tracking expected control force.The pavement information of the front axle wheel was taken as the preview information of the rear axle wheel to establish an augmentation system containing pavement preview information.Numerical simulation for the air suspension semi-active control system considering road surface preview information and parametric uncertainty was performed.Results showed that the proposed control strategy can not only improve the ride comfort of the air suspension,but also have stronger robustness to parametric uncertainty.
作者
张志勇
王建波
胡林
黄彩霞
ZHANG Zhiyong;WANG Jianbo;HU Lin;HUANG Caixia(Hunan Provincial Key Lab of Intelligent Manufacturing Technology for High Performance Mechanical Equipment,Changsha University of Science and Technology,Changsha 410114,China;College of Automobile and Mechanical Engineering,Changsha University of Science and Technology,Changsha 410114,China;College of Mechanical and Vehicle Engineering,Hunan University,Changsha 410082,China)
出处
《振动与冲击》
EI
CSCD
北大核心
2020年第23期21-29,共9页
Journal of Vibration and Shock
基金
国家自然科学基金(51675057)
汽车安全与节能国家重点实验室开放基金(KF1827)。
关键词
空气悬架
半主动控制
鲁棒控制
参数不确定性
轴距预瞄
air suspension
semi-active control
robust control
parametric uncertainty
wheelbase preview
