基于T-S模型的半车辆悬挂系统控制研究  

Research of Semi-vehicle Suspension Systems Control Based on T-S Model

作　　者：石蕊 石广田[1] 崔彦良 SHI Rui;SHI Guang-tian;CUI Yan-liang(School of Mechanical Engineering,Lanzhou Jiaotong University,Lanzhou 730070,China)

机构地区：[1]兰州交通大学机电工程学院,兰州730070

出　　处：《兰州交通大学学报》2021年第1期73-82,共10页Journal of Lanzhou Jiaotong University

摘　　要：针对不确定性和信号测量丢失的半车辆悬挂系统随机均方稳定和约束性能问题.首先,考虑簧上质量和簧下质量的不确定性,传感器故障和数据丢包,建立更接近实际环境的非线性半车辆悬挂系统模型.其次,利用Takagi-Sugeno(T-S)对该模型进行线性化处理.最后,设计与模型相关的李亚普诺夫函数,并推出满足悬挂系统约束性能的随机均方稳定条件.仿真结果证明了所提出控制策略的有效性.In order to solve the stochastic mean square stability and constrained performance problem of semi-vehicle suspension system with uncertainty and loss of signal measurement,a nonlinear semi-vehicle suspension model system which is closer to the actual environment is established by considering the uncertainties of sprung mass and unsprung mass,sensor faults and data packet loss.Secondly,this model is linearized by using Takagi-Sugeno(T-S).Finally,A Lyapunov-Krasovskii functional(LKF)related to the model is designed,thus the stochastic mean square stability condition which satisfies the constraint performance of the suspension system is deduced.The effectiveness of the proposed control strategy is verified by the numerical example.

关 键 词：半车辆悬挂系统 T-S模糊模型 李亚普诺夫函数 稳定性 

分 类 号：U279.2[机械工程—车辆工程] U279.5[交通运输工程—道路与铁道工程]