车载CAN网络汽车控制故障诊断系统的设计

Design of fault diagnosis for control system based on automotive CAN network

随着汽车电子技术的飞速发展,尤其是车载网络技术的应用使车辆上的控制系统的数量及控制功能不断增加及复杂化,但这无疑增加了汽车维修人员对车载网络控制系统故障诊断及分析的难度,特别是在相关资料和诊断方法、工具不足的情况下,文中以车载CAN网络通讯为主要研究对象,在收集总结大量实车故障案例基础上对网络故障进行分类,对网络控制的系统功能原理及诊断方法进行了较深入分析和探讨。

The quantity of vehicle control system and the function of control system are continuously increased and complicated with the rapid development of automotive electronic technique. At the same time,it also undoubtedly increases the difficulty to diagnose and analysis the vehicle network control system by the technician, especially in the case of lacking of reference datd, diagnostic method and tools. In this article, it mainly covers the classifying of network malfunction, deep analysis and discuss on diagnostic method and function theory of network control system, on the basis of collecting a lot of malfunction cases and studying the automotive CAN network communication.