【作者】 郭长勇；

【导师】 王志刚；

【作者基本信息】 河北工业大学 ， 通信与信息系统， 2007， 硕士

【摘要】 现代汽车的迅猛发展和电子技术的日新月异,汽车电子设备不断增多,使汽车综合控制系统越来越复杂。另外,近年来ITS的发展,以3G(GPS、GIS和GSM)为代表的新型电子通信产品的出现,对汽车的综合布线和信息的共享交互提出了更高的要求。汽车网络总线的出现为这一系列问题提供了有效解决方法。本文从研究汽车局域网入手,主要研究了国内外汽车控制器局域网的发展与现状,对当今国际汽车行业中应用最广的CAN总线原理和应用进行了深入分析与吸收。给出了车身控制系统的方案,对车身各节点的功能进行了设计规定。分析了CAN节点的两种设计方案,对独立CAN控制器sja1000的结构做了详细分析,本文选用内置CAN控制器的8位微处理器AT90CAN128,该处理器集成了sja1000的功能,可以缩短开发周期,给出了节点的硬件设计电路。软件设计分为CAN控制器的初始化,报文的发送和接收,报文标志符的定义。在CAN2.0协议的基础上,结合CANopen协议,针对功能相对简单的车灯控制系统,制定出了一套可靠运行的通信协议。通过实验验证,整个系统通讯可靠,数据的实时性较高,各节点之间能实现数据的完全共享。更多还原

【Abstract】 With the rapid development of modern automobile and electronic technology, the electronic devices of automobile increase rapidly, which makes the automobile integrated control system to be more and more complex. Moreover, along with the recent years ITS development, take 3G (GPS, GIS and GSM) as representative’s new electronic communications product appearance, set a higher request alternately to the automobile comprehensive wiring and information sharing.The automobile network bus appearance has provided the effective addressing method for this a series of questions.This study starts from the vehicle LAN, mainly studied the development of the CAN-bus used in advanced automobiles in the world. Researched and absorbed the CAN-bus which is most wide applied in international car industry now. This paper analyzes two kind of design proposal of the CAN node, makes multianalysis to the structure of the independent CAN the controller sja1000, this article has selected 8 microprocessor AT90CAN128 of CAN controller, which integrated the sja1000 function, might reduce the development cycle, has given the node hardware design electric circuit.The software design divides into the CAN controller the initialization, the message transmission and receive, the message designator definition. Based on CAN2.0 protocol , combine with CANopen protocol, in view of the function relatively simple vehicle lamp control system, constructed a reliable communication protocol.The experiment confirms, the overall system communication is reliable, data timeliness is high, between various nodes can realize data complete sharing.更多还原