Research on Frame Packing Mechanism of Static Segment in Automobile FlexRay Network

China Mechanical Engineering ›› 2015, Vol. 26 ›› Issue (22): 3021-3027.

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Research on Frame Packing Mechanism of Static Segment in Automobile FlexRay Network

Wang Yuefei1,2;Zhang Heng1,2;Zhang Yasheng1;Liu Hongjun1

1.Hefei University of Technology,Hefei,230009
2.Engineering Research Center of Safety Critical Industrial Measurement and Control Technology of Ministry of Education,Hefei,230009

Online:2015-11-25 Published:2015-11-23

汽车FlexRay网络静态段帧封装机制研究

王跃飞1,2;张恒1,2;张亚生1;刘红军1

1.合肥工业大学,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

基金资助:
国家自然科学基金资助项目(61202096);教育部留学回国人员科研启动基金资助项目(\[2013\]693);中央高校基本科研业务费专项资金资助项目(2013HGCH0014);安徽省省级高等学校自然科学研究资助项目(KJ2012A226);江淮汽车技术中心资助项目（W2014JSKF0086）

Abstract

Abstract:

On the basis of analyzing FlexRay frame format and coding,the calculation formula of the length of static slot and bus utilization rate were obtained,and main factors that influenced bus utilization rate were given.Some prerequisites of frame packing and exact calculation method of lower and upper bounds of the size of the payload segment were proposed.Finally, with the target of realizing highest bus utilization rate in super cycle,the integer linear programming model was established to solve the problem of frame packing and heuristic algorithm of solving the model was given.The American socity of automotive engineers(SAE) experimental results demonstrate the effectiveness of the proposed method,which raises the bus utilization rate,and reduces the execution time of algorithm.

Key words: FlexRay , bus;static , slot;bus utilization rate;frame packing

摘要：

在分析FlexRay消息帧格式和帧编码的基础上,推导出静态时隙长度和总线利用率计算公式,分析了影响总线利用率的主要因素;提出帧封装的前提条件，给出了帧有效负载段上下限精确计算方法；在此基础上，以超周期内总线利用率最高为优化目标，建立了解决帧封装问题的整数线性规划模型，并给出求解该模型的启发式算法。SAE实验结果证明该方法不仅能够提高总线利用率，而且可有效缩短算法执行时间。

关键词: FlexRay总线, 静态时隙, 总线利用率, 帧封装

CLC Number:

TN915.04

Wang Yuefei, Zhang Heng, Zhang Yasheng, Liu Hongjun. Research on Frame Packing Mechanism of Static Segment in Automobile FlexRay Network[J]. China Mechanical Engineering, 2015, 26(22): 3021-3027.

王跃飞, 张恒, 张亚生, 刘红军. 汽车FlexRay网络静态段帧封装机制研究[J]. 中国机械工程, 2015, 26(22): 3021-3027.

References

[1]张利,张本宏,王跃飞,等.基于总线占用率的FlexRay消息时隙分配方法研究[J].中国机械工程,2012,23(6):699-703.
Zhang Li,Zhang Benhong,Wang Yuefei,et al.Research on FlexRay Messages Slot Distribution Methods Based on Bus Occupancy Rate[J]. China Mechanical Engineering,2012,23(6):699-703.
[2]Navet N,Song Yeqiong ,Simonot-lion F,et al.Trends in Automotive Communication Systems[J].Proceedings of the IEEE, 2005, 93(6):1204-1223.
[3]王跃飞,殷健力,张利,等.基于时间约束的汽车FlexRay网络动态段参数设计[J].中国机械工程,2014,25(15):2070-2075.
Wang Yuefei,Yin Jianli,Zhang Li,et al.Parameters Design of FlexRay Dynamic Segment under Time Constraints[J].China Mechanical Engineering,2014,25(15):2070-2075.
[4]王跃飞,王子涵,张利,等.基于改进调度算法的新一代汽车总线及其网关[J]. 电子测量与仪器学报,2011,25(10):894-900.
Wang Yuefei,Wang Zihan,Zhang Li.A New Generation Automotive Bus and Relative Gateway Based on Improved Scheduling Algorithm[J].Journal of Electronic Measurement and Instrument,2011,25(10):894-900.
[5]Kang M,Park K,Kim B.A Static Message Scheduling Algorithm for Reducing FlexRay Network Utilization[C]//IEEE International Symposium on Industrial Electronics.Seoul,2009:1287-1291.
[6]Kang M,Park K,Myong-Kee J.Frame Packing for Minimizing the Bandwidth Consumption of the FlexRay Static Segment[J].IEEE Transactions on Industrial Electronics,2013,60(9):4001-4008.
[7]张建军,于萍,张本宏,等.基于带宽利用率的FlexRay静态段研究[J].计算机应用研究,2012,29(12):4974-4976.
Zhang Jianjun,Yu Ping,Zhang Benhong,et al. Research on FlexRay Static Segment Based on Bandwidth Utilization[J].Application Research of Computers,2012,29(12):4974-4976.
[8]Schmidt K,Schmidt E G.Message Scheduling for the FlexRay Protocol:the Static Segment[J].IEEE Transactions on Vehicular Technology,2009,58(5):2170-2179.
[9]Schmidt E G,Schmidt K.Message Scheduling for the FlexRay Protocol:the Dynamic Segment[J].IEEE Transactions on Vehicular Technology,2009,58(5):2160-2169.
[10]Jang K,Park I,Han J,et al.Design Framework for FlexRay Network Parameter Optimization[J]. International Journal of Automotive Technology,2011,12(4);589-597.
[11]王跃飞,张纯鹏,张利,等.基于最小时间碎片的汽车FlexRay网络设计[J].电子测量与仪器学报,2014,28(3):299-305.
Wang Yuefei,Zhang Chunpeng,Zhang Li,et al.Design of Automative FlexRay Network Based on Minimum Time Debris[J]. Journal of Electronic Measurement and Instrument,2014,28(3):299-305.
[12]谢勇,李仁发,阮华斌,等.最优的FlexRay静态段配置算法[J].通信学报,2012,11(33):33-40.
Xie Yong,Li Renfa,Ruan Huabin,et al.Optimal Configuration Algorithm for Static Segment of FlexRay[J]. Journal on Communications, 2012, 11(33): 33-40.
[13]FlexRay Consortium,FlexRay Protocol Specification Version 3.0.1..[2015-04-30].http://www.flexray.com.

Research on Frame Packing Mechanism of Static Segment in Automobile FlexRay Network

汽车FlexRay网络静态段帧封装机制研究

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