• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Circuits and systems >Improved Automotive CAN Protocol Based on Payload Reduction and Selective Bit Stuffing
【24h】

Improved Automotive CAN Protocol Based on Payload Reduction and Selective Bit Stuffing

机译：基于有效负载减少和选择性位填充的改进型汽车CAN协议

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

In this research paper, the implementation strategies of automotive controller area network protocol are investigated and the short messaging scheme with selective bit stuffing method to improve the effective utilization of its bandwidth has been proposed. There would be a sharp decrease in the performance of traditional CAN protocol because of considerable increase in the number of ECUs (Electronic Control Units) and infotainment gadgets connected in the vehicle architecture. The demand for safety, emission, diagnostics and comfort norms has steeply increased the number of messages in the 250 Kbps CAN network as the computational power of ECUs has gone up. To overcome this problem, the short CAN method has been proposed and the work is benchmarked with SAEJ1939 Heavy commercial vehicle CAN standard. The Matlab Simu-link based short CAN has been modeled and the performance of the proposed system has evaluated using virtual instrument cluster. Experimental results have shown that compared to the traditional CAN, the proposed method has reduced the worst case response time of CAN extended frame from 160 μ sec to 144 μ sec. Selective bit stuffing technique has reduced the impact of bit stuffing over the payload and improved the utilization factor for the CAN bus without affecting the CAN message ID properties. The proposed algorithm has been modeled and simulated using CAN Matlab model Simulink and it has been verified using virtual CAN tool and real time CAN bus hardware.
机译：本文研究了汽车控制器局域网协议的实现策略，并提出了一种利用选择性位填充方法提高带宽有效利用的短消息方案。由于车辆架构中连接的ECU（电子控制单元）和信息娱乐小工具的数量大量增加，因此传统CAN协议的性能将急剧下降。随着ECU的计算能力的提高，对安全性，排放，诊断和舒适性规范的需求急剧增加了250 Kbps CAN网络中的消息数量。为了克服这个问题，人们提出了一种短CAN方法，并以SAEJ1939重型商用车CAN标准为基准。已经对基于Matlab Simu-link的短CAN进行了建模，并使用虚拟仪器集群评估了所提出系统的性能。实验结果表明，与传统的CAN相比，该方法将CAN扩展帧的最坏情况响应时间从160μs减少到144μs。选择性位填充技术减少了位填充对有效负载的影响，并提高了CAN总线的利用率，而不会影响CAN消息ID属性。所提出的算法已使用CAN Matlab模型Simulink进行了建模和仿真，并已使用虚拟CAN工具和实时CAN总线硬件进行了验证。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号