EOBD监测频率技术研究及实车验证  

Technical Research and Test On EOBD Monitoring Frequency

作　　者：于津涛[1] 田冬莲[1] 杨正军[1] 

机构地区：[1]中国汽车技术研究中心

出　　处：《汽车技术》2013年第4期50-53,共4页Automobile Technology

摘　　要：介绍了EOBD监测频率(IUPR)的定义、监控对象及法规要求,采用试验方法测试了IUPR的变化规律。利用3辆带有IUPR功能的车辆,分别在转鼓和实际道路上按照标准SRC耐久循环行驶16万km,通过观察行驶过程中IUPR的变化规律得出:IUPRM可反映车辆运行中EOBD系统对某一监测项的监测频率,并可通过若干标准NEDC循环来检测车辆IUPR系统是否正常;按照同一行驶规范行驶的车辆,随里程的增加IUPR趋于一致。This article introduces the definition, monitoring objects and regulation requirements of EOBD monitoring frequency （IUPR）, and then uses test method to test change rule of IUPR. The researchers use three vehicles with ｜UPR function to run for 160,000 km on dynamometer and real road respectively according to SRC durability cycle. The following conclusions have been reached through the above tests： IUPRM reflects EOBD System＇s monitoring frequency to a monitored item while the vehicle is in motion, and can check out whether the vehicle＇s IUPR System works well though several standard NEDC cycles. 2. Along with the increase of mileage, IUPRs of the vehicles which followed the same driving rules tend to nearly the same.

关 键 词：EOBD 监测频率 道路试验 

分 类 号：U461.99[机械工程—车辆工程]