某轿车空气悬架PID控制系统仿真研究  

Simulation of PID Control System for Air Suspension of a Car

作　　者：刘斌[1] 徐晖 Liu Bin;Xu Hui(School of Mechanical Engineering,University of Shanghai for Science and Technology,Shanghai 200093,China)

机构地区：[1]上海理工大学机械工程学院,上海市200093

出　　处：《农业装备与车辆工程》2022年第4期152-156,共5页Agricultural Equipment & Vehicle Engineering

摘　　要：以某轿车空气悬架为研究对象,考虑空气悬架的动力学特性和PID控制特点,再结合1/4二自由度空气悬架模型在MATLAB/Simulink中搭建PID控制空气悬架模型。利用仿真模型对轿车空气悬架系统在不同工况下的动挠度、轮胎动行程和车身垂直方向振动加速度进行仿真分析,证明PID控制空气悬架相对于传统的被动空气悬架可以更好地提高轿车的乘坐舒适性和操纵稳定性。Taking the air suspension of a car as the research object,considering the dynamic characteristics and PID control characteristics of the air suspension,and combining with the 1/42-DOF air suspension model,the PID control air suspension model was built in MATLAB/Simulink.The dynamic deflection,tire dynamic travel and body vertical vibration acceleration of car air suspension system under different working conditions were simulated and analyzed by using the simulation model.It is concluded that compared with the traditional passive air suspension,the PID controlled air suspension can better improve the ride comfort and handling stability of car.

关 键 词：PID控制 空气悬架 仿真分析 

分 类 号：U463.33[机械工程—车辆工程]