纯电动汽车半主动悬架模糊PID控制研究与仿真  

Research and Simulation of Fuzzy PID Control for Semi-active Su spension of Pure Electric Vehicles

作　　者：王红霞 赵向阳 娄云 WANG Hongxia;ZHAO Xiangyang;LOU Yun(School of Vehicle and Traffic Engineering,Henan Institute of Technology,Xinxiang 453003,China)

机构地区：[1]河南工学院车辆与交通工程学院,河南新乡453003

出　　处：《河南工学院学报》2024年第5期19-26,共8页Journal of Henan Institute of Technology

基　　金：河南省重点研发与推广专项(科技攻关)项目(232102241029)。

摘　　要：为提升纯电动汽车行驶平顺性,以纯电动汽车半主动悬架为研究对象,基于Matlab/Simulink构建了车辆二自由度1/4半主动悬架模型,并通过滤波白噪声与路面等级相关参数相结合创建了基于有理函数的路面不平度时域模型,然后对半主动悬架的模糊PID控制器予以设计,将设计的控制器与半主动悬架模型集成并完成仿真模型的搭建,最后进行仿真。结果表明,采用模糊PID控制的半主动悬与被动悬架以及标准PID控制的半主动悬架相比,悬架性能得到明显改善,纯电动汽车的行驶平顺性有显著提升。The smoothness of pure electric vehicle driving is an important factor affecting driving comfort and passenger satisfaction.In order To improve the driving smoothness of pure electric vehicles,taking the semi-active suspension of pure electric vehicles as the research object.Firstly,a two-degree-of-freedom 1/4 semi-active suspension model of vehicles is constructed based on Matlab/Simulink,and a time-domain model of road roughness based on rational functions is created by combining filtered white noise with road level related parameters.Then,the fuzzy PID controller for semi-active suspension is designed.The designed controller is integrated with the semi-active suspension model to complete the construction of the simulation model.Finally,simulation is carried out.The results show that compared with passive suspension and semi-active suspension with standard PID control,the suspension performance of semi-active suspension with fuzzy PID control is significantly improved,and the driving smoothness of pure electric vehicles is significantly improved.

关 键 词：纯电动汽车 半主动悬架 模糊PID控制 仿真 

分 类 号：U469.72[机械工程—车辆工程]