基于H^∞半主动控制的空气悬架系统的研究  

Study on Semi-active H^∞ Control about Air Suspension System

作　　者：孙闯[1] 张有强[1] 张庆爽[1] 

机构地区：[1]兰州交通大学机电工程学院,兰州730070

出　　处：《机械工程师》2008年第1期87-89,共3页Mechanical Engineer

摘　　要：改善车辆的运行品质有两条途径:一是提高道路等级;二是合理设计车辆的悬架参数。对于大部分既有道路来说,道路参数是一定的,要保证车辆的运行品质,在很大程度上取决于车辆悬架系统参数的优化选择。针对车辆悬架系统的功能及物理特性,对空气悬架的H∞半主动控制问题进行了研究:建立空气悬架的数学模型,采用H∞半主动控制技术对空气悬架进行分析,提出了一套以调节空气弹簧阻尼为目的的控制方案,并运用MATLAB/SIMULINK对空气悬架进行了仿真。研究结果表明,H∞半主动控制与空气弹簧相结合可以明显改变悬架性能,进而提高车辆运行的平稳性。Enhancing ranks of roads and designing rationally parameters of vehicles suspension systems are two ways to improve the quality of vehicles in motion. As the parameters of roads are fixed for most existing roads, the running quality of vehicles is mainly determined by parameters of vehicle suspension systems. According to the function and physical characteristics of suspension system, Semi-active H^∞ control of air suspension system is studied in this paper. Firstly, a digital model of air suspension is established, secondly, a project for altering air spring damping was put forward after analyzed by semi-active H^∞ Control technology, then, the air suspension system was simulated by software SIMULINK. The results show that semi-active control combine with air-spring can enhance the ability of suspension and riding comfort of vehicle obviously.

关 键 词：空气悬架 H^∞控制 遗传算法 计算机仿真 

分 类 号：U463.33[机械工程—车辆工程]