帕萨特B5CAN总线系统与检修3.doc

常州机电职业技术学院 毕业设计（论文） 作 者： 吴先锋 学 号： 系 部： 汽车工程系 专 业： 汽车电子技术 题 目： 帕萨特B5CAN总线系统与检修 指导者： 刘平 评阅者： 年 月 毕业设计（论文）中文摘要 近几年来，随着我国经济的持续发展，汽车的需求量继续保持高速的增长。并随着电子技术的发展，越来越多的汽车上采用了CAN总线系统通信协议。 汽车CAN总线技术是一种全新的汽车电控系统信息通信方式，是实现各个控制单元之间的数据交换而开发的一种串行通信协议，适应汽车恶劣的工作环境和通信速度要求，在信息传递，资源共享方面有着独特的优势，并可有效减少线束的长度和节点数量；同时汽车CAN总线有着自身独特的结构、工作特性以及相应的故障特点，对其性能的检测、故障的诊断和排除也有着重要的特点。 本论文就是以帕萨特B5CAN总线系统作为试验设计对象，从它的组成、工作原理、以及对其故障点的分析和排除等方面，结合实际情况，分析数据，了解此类帕萨特B5CAN总线系统故障的发生、检测、排除的过程。 关键词： CAN总线 原理 电路分析 检测 维修 毕业设计（论文）外文摘要 Title：Passat B5CAN bus system and overhaul Abstract： In recent years, along with our country economy continues to develop, car demand keep high-speed growth. And with the development of electronic technology, more and more vehicles used on the CAN bus system communication protocols. Auto the can bus technology is a kind of brand-new automotive electronic control system information communication mode, is to realize various control units of data exchange and the development of a serial communication protocol, adapt to the car bad working environment and communications speed requirements, in information transfer, resource sharing is a unique advantage, and CAN effectively reduce the wire length and the number of node, While automobiles thecan bus has its unique structure, working characteristics and corresponding fault characteristics, its performance testing, fault diagnosis and eliminate also has important characteristics. This thesis is to B5CAN bus system as an experiment passat design object, from its composition, working principle, and the breakdown analysis and elimination of, and combining with actual situation, analyze data, understand such passat B5 system of failure, testing, eliminate process. Keywords： CANbus Theory Circuit Analysis Detect