基于LQG控制的8-DOF车辆系统平顺性分析  

Ride Comfort Analysis of 8-DOF Vehicle System Based on LQG Control

作　　者：陈晨 苏蓉 王玲芝 于鹏 尹宗军 彭闪闪 Chen Chen;Su Rong;Wang Lingzhi;Yu Peng;Yin Zongjun;Peng Shanshan(Anhui Institute of Information Technology,School of Mechanical Engineering,Anhui Wuhu 241100;Anhui Institute of Information Technology,Office of the Principal,Anhui Wuhu 241100)

机构地区：[1]安徽信息工程学院机械工程学院,安徽芜湖241100 [2]安徽信息工程学院校办公室,安徽芜湖241100

出　　处：《汽车实用技术》2020年第1期122-125,共4页Automobile Applied Technology

基　　金：安徽省省教育厅自然科学重点项目(KJ2018A0633);大学生创新创业训练计划项目(201813613056)资助

摘　　要：文章利用计算机模拟路面激励,用滤波白噪声法建立了与实际路面统计规律相符的四轮时域随机激励模型,设计基于线性二次型高斯(LQG,LinearQuadraticGaussian)最优控制器的整车8-DOF人椅系统的控制器。通过Matlab仿真平台建立最优控制器的整车8-DOF人椅系统动力学模型,并进行仿真验证表明该最优控制器能够保证车辆的舒适度性能。In this paper, a four-wheel time-domain stochastic excitation model is established using the filtering white noise method, which is consistent with the statistical law of actual road excitation. A controller of 8-DOF human chair system is designed based on LQG(Linear Quadratic Gaussian) optimal controller. The dynamic model of the 8-DOF human chair system is established by using MATLAB simulation platform. The simulation results show that the optimal controller can ensure the comfort performance of the vehicle.

关 键 词：8-DOF人椅系统 最优控制 振动分析 

分 类 号：U463.33[机械工程—车辆工程]