【作者】 宋磊；

【导师】 郑荣良；

【作者基本信息】 江苏大学 ， 车辆工程， 2002， 硕士

【摘要】 随着现代汽车的日益发展,汽车电子设备不断增加,进而带来汽车综合控制系统中大量的控制信号需实时交换的问题,传统线束已远远不能满足这种要求,汽车局域网应运而生。本文简要介绍了国内外汽车局域网CAN总线的发展现状。并详尽地对在当今国际汽车业中应用最广的CAN总线的原理和应用进行了研究、吸收。目前我国大客车的发动机大都是后置的,发动机各数据采集后,分别通过不同的信号线将数据传送给前端仪表显示单元,不易布置,可靠性差,成本高、且不易维护。针对上述现状,本文提出方案:通过汽车局域网CAN总线将发动机数据采集单元和汽车仪表显示单元相连,只用两根信号线就可以实现以上数据的传输,使得传输线束大大简化,可靠性得到了极大的提高,有效节约了线束安装空间和系统成本。本文对该系统的硬件及软件实现都进行了详细的论述。本文的研究,可以作为我国自主开发汽车局域网的有益探索,对我国实现国产汽车信息化具有一定的指导意义。更多还原

【Abstract】 With the development of the modern automobile, the electronic devices of automobile increase rapidly, which brings about the problem that it is necessary for varies of control systems to exchange the signals in the real-time. The traditional wiring harnesses can not satisfy this developmental quest ,people turn to the automobile LAN. This paper introduces briefly the development of the automobile LAN all over the world, and studies home the principle and application of CAN-bus which is used widely in the modern automobile. Now, the engine of the big coach is almost in the rear. After the datas of engine are collected ,they will be tranferred to the frontal displaying intrument by the different wiring harnesses, which has some drawbacks such as unconvenient disposal, bad reliability, discommodious maintenance. To solve these problems, this paper offers the scheme :to connect the datas collecting unit of engine and the displaying instrument unit by the CAN-bus, we can transfer all the datas only by using the two wiring harnesses, which simples the wiring harnesses ,improving the reliability, effectively save the fixing space and the system cost. The hardware and software of the system are presented detailedly in this paper. The study of this paper is the helpful explore to independently develop the automobile LAN of our country, it has the meaning to guide the development of the communication of automobile in our country.更多还原