国六轻型车OBD系统故障管理机制研究  

Research on Fault Management Mechanism of On-board Diagnosis System for Light-duty Vehicles with ChinaⅥEmission Regulation Applied

作　　者：白晓鑫 吴春玲[1] 周文瑾 郭向阳 BAI Xiaoxin;WU Chunling;ZHOU Wenjin;GUO Xiangyang(China Automotive Technology and Research Center,Tianjin 300300)

机构地区：[1]中国汽车技术研究中心有限公司,天津300300

出　　处：《汽车实用技术》2021年第20期133-137,共5页Automobile Applied Technology

基　　金：国家重点研发计划(2017YFB0103401)资助。

摘　　要：文章详细分析了国六轻型车OBD系统未决故障代码、确认故障代码、永久故障代码和冻结帧的判定、存储和清除要求,以及MIL的点亮、熄灭原则,总结出一套满足国六排放法规要求的OBD系统故障管理机制,并通过典型案例下单个或多个OBD故障同时发生时的故障代码、冻结帧和MIL的处理时序进一步阐述了OBD系统故障监测及响应机制。The definition,storage and erasure requirements for pending fault codes,confirmed fault codes,permanent fault codes and freeze frames of on-board diagnosis(OBD)system for light-duty vehicles with ChinaⅥemission regulation applied are analyzed in this paper.The lighting and extinguishing principles of malfunction indicator light(MIL)are also introduced.In addition,the fault management mechanism of OBD system which meets the requirements of regulations is proposed,and through the fault code,freeze frame and MIL processing sequence when single or multiple OBD faults occur simultaneously in some typical cases,the OBD system fault monitoring and response mechanism is further explained.

关 键 词：国六法规 OBD 故障管理 

分 类 号：U471.14[机械工程—车辆工程]