本文關鍵詞：基于AUTOSAR的汽車FlexRay網絡通信故障檢測與管理，由筆耕文化傳播整理發(fā)布。

基于AUTOSAR的汽車FlexRay網絡通信故障檢測與管理

Fault detection and management for automotive FlexRay network communication based on AUTOSAR

[1] [2] [3] [4]

Wang Yuefei, Zhang Yasheng, Liu Hongjun, Huang Weikang （ 1. School of Mechanical and Automobile Engineering, Hefei University of Technology, Hefei 230009, China; 2. Engineering

[1]合肥工業(yè)大學機械與汽車工程學院,合肥230009; [2]安全關鍵工業(yè)測控技術教育部工程研究中心,合肥230009

文章摘要：針對汽車網絡安全性、可靠性等通信要求,參照AUTOSAR網絡管理規(guī)范,提出一種基于故障檢測的FlexRay網絡通信管理方法,建立了節(jié)點內部網絡通信管理狀態(tài)轉換模型,設計了Errorcheck狀態(tài)下的分布式故障檢測機制,給出了該機制下FlexRay網絡參數及網絡管理參數的計算方法,實現(xiàn)了網絡節(jié)點狀態(tài)實時監(jiān)控和協(xié)同休眠功能。VectorCANoe中的仿真試驗結果表明：該方法不僅能夠實時在線管理FlexRay網絡通信,實現(xiàn)高效的節(jié)點故障檢測,而且可以有效降低網絡通信管理帶寬消耗約為5%。該方法為建立高可靠的車載網絡通信管理系統(tǒng)提供了參考。

Abstr：During the past few decades, more and more hydraulic components in vehicles have been replaced by electronic control units （ECU）. The increasing number of ECUs leads to the larger demands for real-time and high-speed communication between ECUs. As a result, communication network has become an inevitable trend in vehicles. Compared with the traditional controller area network （CAN） bus, FlexRay bus has great advantages in transmission efficiency, reliability and flexibility. Since it can meet the future requirements of network communication between ECUs, it has been applied to the power system, chassis system and X-by-wire system in some vehicles. However, how to guarantee the safety and reliability of FlexRay network communication has become an important problem. AUTOSAR NM （automotive open system architecture network management） possesses the functions of the state real-time monitoring and the cooperative sleep of network nodes, which are suitable for the vehicular FlexRay network management. AUTOSAR FlexRay NM mainly consists of 3 basic modes： bus sleep mode, synchronization mode and network mode. Based on the AUTOSAR NM, a network communication management method with fault detection function is proposed and designed. First, a FlexRay network of an automotive chassis and AUTOSAR NM is described. Second, the network internal nodes’ state transition model of network communication management is established. For this model, besides normal operation state, repeating message state and state of preparing for sleep in AUTOSAR NM, a state of Error check is introduced to identify the communication faults of network nodes. Third, a distributed fault detection state mechanism is designed for the Error check state. Finally,

文章關鍵詞：

Keyword：:vehicles fault detection models FlexRay bus network communication management

課題項目：國家自然科學基金（61202096）; 教育部留學回國人員科研啟動基金（[2013]693）; 安徽省省級高等學校自然科學研究（KJ2012A226）; 中央高�；究蒲袠I(yè)務費專項資金（2013HGCH0014）

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  本文關鍵詞：基于AUTOSAR的汽車FlexRay網絡通信故障檢測與管理，，由筆耕文化傳播整理發(fā)布。