半主动空气弹簧悬架的PID优化控制与联合仿真  

The semi-active air spring suspension for PID optimal control and co-simulation

作　　者：汤建新 张腾 牛赛赛 

机构地区：[1]浙江吉利新能源商用车有限公司,浙江杭州311228

出　　处：《汽车实用技术》2018年第1期55-58,共4页Automobile Applied Technology

摘　　要：悬架系统是缓冲地面不平度对车辆扰动的重要工具,对行驶的平顺性有重要的影响。在对悬架系统动力学模型分析的基础上,建立了某车型半主动空气悬架的1/4实体模型及1/4车体半主动PID仿真模型,并用遗传算法对PID参数进行了整定。通过对所建模型的联合仿真与控制分析,结果表明:所采用的PID参数整定的策略是有效的,将其结果输入到联合仿真的模型中,改善了车辆行驶的平顺性。该方法有效的提高了悬架的设计效率,为悬架的优化控制策略研究提供了一种可行方法。Suspension system is an important tool which can buffer disturbance from surface roughness to the vehicle andhave an important impact on the ride comfort. Based on the analysis of the suspension system dynamics model, to establish acertain vehicles 1/4 semi-active air suspension entity model and 1/4 semi-active PID simulation model, using geneticalgorithms for PID tuning parameters. Through the model of co-simulation and control analysis, the results show that：Adopted PID parameter setting strategy is effective, when the results are input to the co-simulation model, it improves thevehicle＇s ride comfort. This method improves the design of suspension＇s efficiency, it provides a feasible method for the studyof optimal suspension control strategy.Kevwords： Air susnension： PID control： Genetic Al^orithm,~： Co-~imnl^tion

关 键 词：空气悬架 PID控制 遗传算法 联合仿真 

分 类 号：U463.33[机械工程—车辆工程]