多序关系分析-模糊综合评价法在轿车电液制动系统方案评判中的应用  

Rank correlation analysis-fuzzy comprehensive evaluation method in scheme judging of car electro-hydraulic braking system

作　　者：刘存香[1] 刘学军[1,2] 莫韦花 LIU Cun-xiang;LIU Xue-jun;MO Wei-hua(Department of Automobile Engineering, Guangxi Vocational & Technical College of Communication,Nanning 530216, China;Guangxi Key Laboratory of Automobile Component and Vehicle Technology, Guangxi University of Science and Technology, Liuzhou 545006, China)

机构地区：[1]广西交通职业技术学院汽车工程系,广西南宁530216 [2]广西科技大学广西汽车零部件与整车技术重点实验室,广西柳州545006

出　　处：《机电工程》2019年第10期1089-1093,共5页Journal of Mechanical & Electrical Engineering

基　　金：广西自然科学基金资助项目(2014GXNSFBA118262);广西汽车零部件与整车技术重点实验室开放课题资助项目(2015KFYB01)

摘　　要：针对轿车电液制动系统(EHYS)难以通过单一方法对系统方案进行合理评判的问题,提出了基于多序关系分析-模糊综合评价法的EHYS方案评判方法。通过对制动力矩、电磁制动器使用寿命、性价比以及安装难度等关键指标进行了多序关系分析,确定出了各指标权重;建立了关键指标评价表,获取了各方案评价矩阵,对关键指标的权重与各方案的评价矩阵进行了模糊运算,计算得到了各方案模糊综合评价模型,最终得到了各方案的评判结果。研究结果表明:电磁制动器线圈通电电流强度为25 A,铁芯与制动盘间的气隙为1 mm,线圈匝数为810匝,制动盘材料为钢材质的方案是EHYS最佳选型方案。Aiming at the problem that the selection scheme to the electromagnetic-hydraulic braking system(EHYS) is difficult to judge by a single method, an EHYS scheme evaluation method based on rank correlation analysis-fuzzy comprehensive evaluation method was proposed. The rank correlation analysis was applied to determine the index weights of the key indicators, which included braking torque, electromagnetic brake service life, cost performance and installation difficulty. The key index evaluation table was established, the evaluation matrix of each scheme were obtained, the weight of the key indicators and the evaluation matrix of each scheme were fuzzy calculated, the fuzzy comprehensive evaluation model of each scheme were calculated, the evaluation results of each scheme were finally obtained. The results indicate that the best EHYS election scheme can be obtained when the current intensity to the electromagnetic brake coil is 25 A, the air gap between the iron core and the braking disc is 1 mm, the number of coil turns are 810, and the brake disc material is steel material.

关 键 词：电液制动系统 多序关系分析 模糊综合评价 方案评判 

分 类 号：U463.5[机械工程—车辆工程]