基于遗传算法的EPS系统参数优化  

Parameter optimization of EPS system based on genetic algorithm

作　　者：赵万忠[1,2] 施国标[2] 林逸[2] 石培吉[2] 李强[2] 

机构地区：[1]南京航空航天大学车辆工程系,南京210016 [2]北京理工大学机械与车辆工程学院,北京100081

出　　处：《吉林大学学报（工学版）》2009年第2期286-290,共5页Journal of Jilin University:Engineering and Technology Edition

基　　金：'863'国家高技术研究发展计划项目(2006AA11A192);国家自然科学基金项目(50705008)

摘　　要：根据纯电动大客车电动助力转向(EPS)系统工作的具体要求,开发了适合纯电动大客车EPS系统使用的循环球式电动助力转向器,建立了纯电动大客车循环球式EPS系统动力学模型及整车二自由度转向模型。在此基础上提出了系统转向路感、转向灵敏度以及转向操稳性的概念,并根据多元函数有约束优化问题的特点应用遗传算法对系统参数进行了优化设计。仿真结果表明:基于遗传算法优化的系统参数提高了系统的转向路感和转向操稳性。According to the requirements of the electrical power steering(EPS) system in the pure electric power bus,a recirculating-ball type EPS system was developed.A model for the recirculating-ball type EPS system of the pure electric power bus and a 2-DoF complete bus model were built.The concepts of steering such as the road feeling,the sensitivity,and the operation stability were introduced.The EPS system parameters were optimized by a genetic algorithm based on the principle of the constrained optimization of...

关 键 词：车辆工程 电动助力转向系统 路感 操稳性 遗传算法 

分 类 号：U463.4[机械工程—车辆工程]