强横风作用下车辆半主动悬架模糊PID控制研究  

Research of Fuzzy PID Control of Vehicle Semi-active Suspensions under Strong Crosswinds

作　　者：袁传义[1] 张焱[1] 唐金花[1] YUAN Chuanyi;ZHANG Yan;TANG Jinhua(School of Automobile and Traffic Engineering,Jiangsu University of Technology,Changzhou 213001,Jiangsu,China)

机构地区：[1]江苏理工学院汽车与交通工程学院,江苏常州213001

出　　处：《噪声与振动控制》2022年第3期168-171,236,共5页Noise and Vibration Control

摘　　要：为提高汽车高速行驶时的抗横风性能,提出一种阻尼系数修正的半主动悬架控制方法。基于Carsim和MATLAB平台建立整车动力学模型和A级路面模型,设计一种基于横风的半主动悬架模糊PID控制系统,并利用粒子群算法优化PID控制器参数。PID控制器依据车辆质心垂直加速度确定各轮悬架系统的基本阻尼系数,模糊控制器根据横风强度和方向对阻尼系数进行修正。通过MATLAB和Carsim联合仿真和实车道路试验,与被动悬架系统相比,经过半主动悬架控制后的质心垂直加速度峰值和标准差均下降30%以上,侧倾角速度标准差下降25%以上,车辆在强横风作用下的行驶平顺性和安全性得到有效提高。In order to improve the anti-crosswinds performance of vehicles traveling at high speeds,a control method of semi-active suspension with damping coefficient modification is proposed.Based on Carsim and MATLAB platforms,the vehicle dynamics model and the A-level road surface model are established.A semi-active suspension with fuzzy PID control system for crosswinds is designed.The parameters of PID controller are optimized by particle swarm optimization.The basic damping coefficient of the semi-active suspension system for each wheel is determined by the PID controller according to the vehicle centroid vertical acceleration,and the damping coefficient is modified by fuzzy controller according to the intensity and direction of the crosswind.Through MATLAB and Carsim co-simulation and vehicle road test,compared with the passive suspension system,the peak and standard deviation of centroid vertical acceleration have dropped by more than 30%after the semi-active suspension control,and the standard deviation of the roll angle speed has dropped by more than 25%,the vehicle ride comfort and safety are effectively improved under strong crosswinds.

关 键 词：振动与波 强横风 半主动悬架 模糊控制 粒子群优化 

分 类 号：U463[机械工程—车辆工程]