【作者】 李洪波；

【导师】 王旭东；

【作者基本信息】 哈尔滨理工大学 ， 电力电子与电力传动， 2005， 硕士

【摘要】 本文对汽车网络控制技术的发展历史、作用及其拓扑结构进行了全面的介绍。系统地分析了多种不同侧重功能的汽车网络标准,并且分别对其主流协议进行了深入讨论。在详细调查和分析了国际汽车网络技术的发展趋势后,结合国内汽车网络技术的应用和发展状况,认为单纯靠技术引进不利于长期发展。尽快消化、吸收和研发具有自主知识产权的汽车网络技术标准及基于这一技术标准的汽车电子产品已势在必行。在众多汽车网络标准的主流协议中,本设计采用了高性能、低成本的CAN 总线网络协议。深入研究CAN 网络协议的技术规范,描述了CAN 总线的分层结构中的数据链路层和物理层。简要介绍了CAN 总线的一些基本概念和基本组织规则,详细阐述了CAN 总线的报文、帧格式,错误类型以及检测错误能力。论文中提出了四种典型汽车车体控制网络的设计方案,给出相应的拓扑结构图。在分析和比较四个方案的优缺点后,选择了第三个方案,该方案简化后,把四个车灯控制系统作为CAN 节点直接连接到CAN 总线网络中,再接上一个中央控制节点,即可实现基于CAN 总线的汽车车灯控制网络。本文提出一种通用模块化试验板的软、硬件设计思想,完成了中央节点和四个车灯节点的试验板硬件电路设计,而且完成了软调试,实现了基于CAN 总线的汽车车灯控制的试验网络。并且在文中给出车灯控制网络框图、车灯节点功能框图及其主要模块的硬件原理图。本论文完成之际,在以汽车车灯控制试验网络为平台的CAN 总线通讯实验中,实现了CAN 通讯。实验结果表明,该设计在数据传输波特率达到125Kb/S 的情况下,数据传输稳定、准确、可靠。该方案提供的基本思路也可用于其它CAN 分布式控制系统。更多还原

【Abstract】 In this thesis, the developing history, function and topological structure of automotive network control technology is comprehensively introduced. The automotive network standard emphasizing particularly on different functions systematically is analyzed and the different main protocols is deeply discussed. After scanning and analyzing the developing trend of international automotive network technology and considering its application and development status in China, we have a conclusion that it is not benefit for the long-time development by purely importing technology. Quickly understanding and applying imported technology and developing automotive network standard of autonomous knowledge property right and exploiting automotive electronic product based on it is imperative under the situation. In the design, the protocol of CAN Bus network with high performance and low cost is adopted among many main protocols of automotive network standard. Technical regulation of CAN Bus network is lucubrated and Data Link Layer and Physical Layer in hierarchy structure of CAN Bus is described. Its basic concept and organizing rules and particularly represents the message, picture format, error style and checking error ability in CAN Bus are simply introduced. The subject is aimed at profoundly discussing the design scheme of four different classical automobile bodywork control network and providing corresponding topological structure chart. The third scheme is selected through analyzing and comparing the four schemes. After simplifying it, the four automobile lights control system is substituted for CAN nodes directly connecting to CAN Bus network and then to central control node. Then the automobile light control network based on CAN Bus is realized. After presenting a common design module thought for automobile light control network, the central node and the four automobile light nodes experiment circuit design and software debugging is completed. Then the automobile light control network based on CAN Bus is implemented. The node functional sketch maps and its main modular hardware schematic diagrams are also given in this paper. When this thesis is completed, the CAN communication in the experiment of automobile light control network platform has been realized. The result indicates that the data can be transported at 125Kb/S baud rate stably, accurately and credibly. The basic thought of this design can be also used in other distributed CAN control system.更多还原