车辆半主动悬架与电动助力转向系统的模糊PID集成控制研究  

Study on Fuzzy-PID Integrated Control of Vehicle’s Semi-active Suspension and Electric Power Steering System

作　　者：陈柏林[1,2] 汤伟强 谷金媛[3] 

机构地区：[1]广州汽车集团乘用车有限公司,广东广州510507 [2]江苏大学,江苏镇江212013 [3]北京赛迪信息工程监理有限公司,深圳518057

出　　处：《湖北汽车工业学院学报》2009年第4期9-14,共6页Journal of Hubei University Of Automotive Technology

基　　金：江苏省高新技术项目(BG2004025);江苏大学科研立项(07A112)

摘　　要：建立了半主动悬架(SAS)与电动助力转向(EPS)的整车集成系统模型,将PID与模糊控制相结合,设计了模糊PID集成控制策略,并在Matlab环境中,对汽车在方向盘角阶跃输入工况下进行了大量的仿真研究。仿真结果表明:具有模糊PID控制策略的SAS与EPS集成控制优于二者的单独控制,提高了汽车的转向轻便性、操纵稳定性、乘坐舒适性、行驶安全性,从整体上优化了汽车底盘的综合性能。The whole vehicle integrated model of semi-active suspension （SAS） and electric power steering system （EPS） is established. The fuzzy-PID integrated control strategy is designed based on PID control and fuzzy control, and the vehicle in the steering angle step-input working situation is simulated with Matlab. The results show that the SAS and EPS integrated control is better than the respective control system. It improves the vehicle＇s steering portability, handling stability, ride comfort and driving safety, and optimizes the overall performance of vehicle chassis.

关 键 词：半主动悬架 电动助力转向 集成系统 模糊PID 

分 类 号：U463[机械工程—车辆工程]