汽车EPS方案的模糊区间评价与加权排序研究  

Study on the fuzzy interval evaluation and weighted ranking for EPS schemes

作　　者：肖金坚[1] 刘晶郁[1] 

机构地区：[1]长安大学汽车学院,西安710064

出　　处：《现代制造工程》2009年第10期112-115,44,共5页Modern Manufacturing Engineering

基　　金：交通部科技项目(200439800060)

摘　　要：对汽车电动助力转向(EPS)方案转向感觉进行对比评价分析比较困难。在应用模糊语言变量的基础上,将群体多准则决策和模糊多层次综合评价进行融合,采用轻便性、回正性、中间位置转向性能和移线性能作为评价因素集,构建了模糊层次结构模型,利用标度法构建评价准则比较关系矩阵及一致判断矩阵,并对各总评价值模糊区间进行加权排序,体现了各种评价因素和各级决策信息间的逻辑关系,为EPS开发、参数的对比优化提供了途径。In order to evaluate the vehicle steering feels of the Electric Power Steering （EPS） system effectively, the maneuver ability of steering, the return ability of steering, the ISO lane change capability,and the on-center steering capability were adopted as test factors. On the basis of group muhicriteria decision making and fuzzy Analytical Hierarchy Process （AHP） method, the EPS hierarchic fuzzy evaluation model was established, and a simplified scale method was adopted to generate the judgment matrices meeting the consistency checking. Fuzzy intervals of EPS schemes were ranked with total weighted values and the optimal alternative could be selected. An example was given, under this approach, show that the decision making process was a systematic and practical method for EPS schemes selection.

关 键 词：电动助力转向 群体多准则决策 模糊多层次评价 排序 

分 类 号：U463.4[机械工程—车辆工程]