空气弹簧悬架系统控制模型研究  

Study on Control Model of Air Spring Suspension System

作　　者：彭福泰 PENG Fu-tai(Hubei Key Laboratory of Automotive Power Train and Electronic Control,Hubei University of Automotive Technology,Shiyan Hubei 442002,China)

机构地区：[1]湖北汽车工业学院汽车动力传动与电子控制湖北省重点实验室,湖北十堰442002

出　　处：《机械研究与应用》2020年第1期80-84,共5页Mechanical Research & Application

基　　金：湖北省汽车动力传动与电子控制湖北省重点实验室开放基金项目:车辆空气悬架系统非线性振动与控制动力学特性研究(编号ZDK1201805);湖北省教育厅科学技术研究计划项目:车辆新型悬架系统非线性动力学控制及其轻量化特性研究(编号:B2019082)。

摘　　要：随着对乘坐的舒适性和行驶的平顺性的要求越来越高,车辆空气悬架系统由于其优越的性能逐渐的应用到车辆系统中。依靠电子技术和控制技术的发展,要求汽车空气悬架系统逐步电控智能化。具体而言,空气悬架系统可利用刚度和阻尼可变来适应不断变化的路况,进而改善车辆行驶的平顺性、操纵稳定性等性能。基于空气弹簧的结构和力学特性,首先介绍其在车辆系统中的结构原理和类别,然后通过热力学的知识,对它的刚度和频率力学特性进行理论推导,进一步设计PID控制器,之后建立空气弹簧的控制数学模型,用MATLAB/Simulink进行仿真,最后通过评价指标,对比传统悬架发现空气悬架控制模型能有效的提升悬架性能。As the requirements for ride comfort become higher and higher,the vehicle air suspension system is gradually applied to the vehicle systems due to its superior performance. Relying on the development of electronic technology and control technology,automotive air suspension systems are required to gradually be intelligently electronically controlled. Specifically,the air suspension system can use variable stiffness and damping to adapt to the changing road conditions,thereby improving the ride comfort and handling stability of the vehicle. In this paper,based on the structure and mechanical characteristics of air spring,its structural principles and categories in vehicle systems are introduced firstly;the theoretical knowledge of thermodynamics is used to theoretically derive its stiffness and frequency mechanical characteristics so as to further design the PID controllers;then,the control mathematical model of the air spring is established and simulated with the MATLAB/Simulink;finally,through the evaluation index,it is found that comparing with the traditional suspension,the air suspension control model can effectively improve the suspension performance.

关 键 词：空气弹簧 振动控制 平顺性 

分 类 号：U463[机械工程—车辆工程]