| ISO 15765机制在FlexRay网络中的研究与实现 |
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| 引用本文： | 韩江洪,;康杰,;张本宏,;王跃飞.ISO 15765机制在FlexRay网络中的研究与实现[J].电子测量与仪器学报,2014(9):935-942. |
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| 作者姓名： | 韩江洪 ;康杰 ;张本宏 ;王跃飞 |
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| 作者单位： | [1]合肥工业大学计算机与信息学院,合肥230009; [2]安全关键工业测控技术教育部工程研究中心,合肥230009; [3]合肥工业大学机械与汽车工程学院,合肥230009 |
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| 基金项目： | 国家电子信息产业发展基金（工信部财函[2011]506）、国家国际科技合作专项（2012DFB10060）、广东省教育部产学研结合（2012B091100417）项目 |
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| 摘 要： | FlexRay网络是新一代的车载通信网络,ISO 15765协议是当前汽车中使用最多的诊断协议,提出一种将ISO 15765机制应用于FlexRay网络的方法。基于FlexRay网络时分多址访问(TDMA)和柔性时分多址访问(FTDMA)的特点,通过分析静态段和动态段中有效载荷及数据帧传输时间,得到诊断报文的分段策略以及数据帧传输时必须满足的时延要求;针对FlexRay数据帧中不包含目的地址的情况,通过在帧有效载荷中增加表示地址的字段,实现诊断报文到FlexRay数据帧的映射。最后在CANoe上进行了仿真实验,验证了本方案的可行性。
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| 关 键 词： | FlexRay网络 ISO 协议 分段策略 时延 |
Research and implementation of ISO 15765 mechanism in FlexRay networks |
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| Affiliation: | Han Jianghong,Kang Jie,Zhang Benhong,Wang Yuefei( 1.School of Computer ＆ Information, Hefei University of Technology, Hefei 230009, China;Engineering Research Center of Safety Critical Industry Measurement and Control Technology, Ministry of Education,Hefei 230009, China; 2.School of Computer ＆ Information, Hefei University of Technology, Hefei 230009, China; School of Mechanical and Automobile Engineering, Hefei University of Technology, Hefei 230009, China;) |
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| Abstract: | FlexRay network is a new generation vehicle communication network,and ISO 15765 protocol is the most widely used in diagnostic protocol of current automobile.A method that is ISO 15765 mechanism is used in FlexRay networks is proposed.Based on the feature of TDMA （time division multiple access） and FTDMA （flexible time division multiple access） of FlexRay network,a segmentation strategy of the diagnostic message and delay requirement that should be met in data frame transmission are obtained by analyzing the effective load and the transmission time of the data frame in static segment and dynamic segment.For the case that the FlexRay data frame does not contain the destination address,mapping the diagnostic messages to FlexRay data frames is realized by adding the address field in the effective load of the frame.Finally,the feasibility of the method is proved by simulation on CANoe. |
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| Keywords: | FlexRay networks ISO 15765 protocol segment strategy delay |
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