【作者】 陈石东；

【导师】 陈文芗；

【作者基本信息】 厦门大学 ， 测试计量技术与仪器， 2008， 硕士

【摘要】 随着汽车电子化的发展,为了减少线束、提高信号利用率、共享和传输大批量数据信息,汽车总线网络化成为了趋势,同时也成了汽车电子化发展的重要环节。CAN以其优异的性能成为汽车局域网的主流,但是国内对于汽车CAN网络技术的研究处于起步阶段,相关技术更是相差10多年。国内对于CAN总线的研究还停留在基本功能的研究,而这种方式构建的通信技术网络的传输内容不能灵活修改,只适合固定数据量和小数据量的通信方式。汽车上传感器与智能控制系统数量的日益增加,使得汽车网络上传输的数据量越来越大、汽车网络逐渐复杂化和信息共享的要求越来越高,CAN基本网络已经不能满足汽车电子化和网络化的要求,所以必须构建更高级的车载网络。本课题的研究目的就是在吸收和消化国外相关技术基础上,研究以SAE-J1939标准协议为基础的车载通信网络的可行性和功能性,为缩小国内外技术差距、促进相关产品国有化和低成本化等研究贡献点微薄力量。本课题主要完成了如下几方面的工作:首先,设计汽车数字传感器进行数据采集,使汽车传感器信号数字化:其次,对CAN总线协议和SAE-J1939通信标准进行完整地分析研讨;然后,对SAE-J1939通信平台进行程序代码实现和硬件电路设计初步实现SAE-J1939通信基本功能;再次,借助CANoe工具进行通信网络建模和仿真;最后,搭建SAE-J1939网络通信试验真实测试环境,测试通信并且分析测试结果。更多还原

【Abstract】 Along with the development of automotive electronics,automotive network bus turns into trends and becomes an important link of automotive electronics,in order to reduce wiring,enhance signal utilization,and share the high-volume data transmission.CAN bus has become the mainstream of automotive network bus with its high-performance.But the CAN bus research of domestic automotive industry is at the initial stage,the relevant technologies between the home and abroad is behind more than ten years.As for the domestic CAN bus study remains in the basic function research stage,the network with that constuction is not flexible,only for a fixed volume of data and the small volume of data communications.Because the number of vehicle sensors and intelligent control system is increasing,the vehicle network data transmission is growing,and becoming more complex,and the information sharing becoming more demanding.The basic CAN network has been unable to meet the requirements of automotive electronics and networking,so it is necessary to build more advanced CAN network.The aim of this paper is to do a little contribution to digest and absorb foreign revelant technologies,to narrow the technology gap between home and abroad,to promote the relevant technologies nationalization and related products low-cost,based on the research of SAE-J1939 protocol and the feasibility and functionality of automotive communication network this protocol-based.This paper are based on the completed several works.Firstly,vehicle digital sensor has designed for data acquisiton,so that the analog signals of automotive can be digitized.Secondly,a full analysis and discussion has been done to the CAN bus protocol and SAE-J1939 standard protocol.Thirdly,the design of SAE-J1939 based communications platform code and hareware circuit has been done to realize SAE-J1939 communication basic functions.Fourthly, the simulation and modeling of SAE-J1939 network has been completed with CANoe tools.Fifthly,the SAE-J1939 network communication’s real test environment has been built,thereby test and the analysis of test result has been finished.更多还原