摘要
半主动悬架可以自适应调节阻尼器的阻尼力,具有良好的可控性。针对半主动悬架的增益故障,提出了基于自适应模糊控制的汽车半主动悬架容错控制。在分析汽车半主动悬架阻尼器输入输出特性的基础上,建立了阻尼器发生增益故障时的故障悬架模型,设计了未知输入观测器对阻尼器增益故障进行故障诊断。基于自适应模糊控制对汽车半主动悬架系统阻尼器增益故障设计容错控制器,在C级随机路面下进行容错控制的Matlab/Simulink软件仿真,结果表明自适应模糊容错控制的控制效果要优于无容错控制。
Semi-suspension can be controller to adapt the desired damping force.Aiming at the gain failure of semi-active suspension,this paper proposes a fault-tolerant control of semi-active suspension for vehicles based on adaptive fuzzy control.Based on the analysis of the input and output characteristics of the semi-active suspension damper of the vehicle,the fault suspension model of the damper with gain failure is established.The unknown input observer is designed to diagnose the damper gain fault.Then the fault-tolerant controller for the damper gain failure of the semi-active suspension system of the vehicle is designed based on adaptive fuzzy control.The Matlab/Simulink software simulation of fault-tolerant control is carried out under C-class random roads,respectively.The results show that the control effect of fault-tolerant control is better than that of non-fault-tolerant control.
作者
姚行艳
YAO Xing-yan(School of Computer Science and Information Engineering,Chongqing Technology and Business University,Chongqing 400067,China)
出处
《机械设计与制造》
北大核心
2021年第2期144-147,共4页
Machinery Design & Manufacture
基金
国家自然科学基金(51605061)
重庆市基础科学与前沿技术研究(cstc2017jcyjAX0183)
重庆市教委科学技术研究(KJ1500627)。
