汽车主动悬架的自校正控制  

An Approach of Self-tuning Control for Automotive Active Suspensions

作　　者：刘新亮[1] 张建武[1] 陈兆能[1] 

机构地区：[1]上海交通大学

出　　处：《汽车工程》1998年第3期165-170,共6页Automotive Engineering

基　　金：福特-中国研究与发展基金项目的资助和;上海交通大学振动;冲击与噪声国家重点实验室的支持

摘　　要：主动悬架系统能使车辆的乘坐舒适性和操纵稳定性同时得到改善,其中执行机构和控制算法的优劣决定了该系统的性能。汽车悬架系统是典型的参数时变系统,要使其在各种状态下都具有良好的隔振效果,有必要使相应的控制系统具有变参数自适应功能。为此,本文以最小方差自校正控制算法对系统进行控制,并利用高速开关阀控制的液气油缸作为执行器。理论分析和数值仿真结果表明,本文提出的控制系统是可行的,这种自适应控制算法对系统中一些时变参数具有良好的适应性。The ride quality and handling stability of automobile can be enhanced simultaneously by an active suspension system, dynamic performance of which depends heavily on its hydraulic actuator and control algorithm. It is necessary and significant for the relevant control system to possess of adaptability for achieving fairly good vibration isolating effectiveness in various working conditions of the suspension which is a typical time-varying systems. In the present research, an approach of minimum variance self-tuning control algorithm is thus employed and a speed ON/OFF solenoid valve controlled hydro-pneumatic cylinder is used as the force generator. Theoretical and numerical simulation results show that the adaptive control scheme is applicable due to its good adaptability for automotive suspensions with a number of time-varying parameters.

关 键 词：主动悬架 参数辨识 自校正控制 汽车 

分 类 号：U463.33[机械工程—车辆工程]