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A low-cost on-line monitoring mechanism for the flexray communication protocol

Sedaghat, Y ; Sharif University of Technology | 2009

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  1. Type of Document: Article
  2. DOI: 10.1109/LADC.2009.20
  3. Publisher: 2009
  4. Abstract:
  5. Nowadays, communication protocols are used in safety-critical automotive applications. In these applications, fault tolerance is a main requirement and the existence of single points of failure is a serious threat to system failures. Among the communication protocols, FlexRay is expected to become the communication backbone for future automotive systems. In this paper, we identify single points of failure in the FlexRay protocol by injecting a total of 135,600 single-bit transient faults into all accessible registers of the FlexRay communication controller. The results showed that about 1.2% of all injected faults caused the controller to freeze immediately. Based on these results and detailed study of the FlexRay specifications, a low-cost on-line monitoring mechanism is proposed to check freeze errors. Using this mechanism, the host controller distinguishes about 99.8% all occurred freeze errors into errors due to transient faults or due to standard operation of the FlexRay protocol. © 2009 IEEE
  6. Keywords:
  7. Distributed embedded systems ; Fault injection ; FlexRay protocol ; On-line monitoring ; Single point of failure ; Transient faults ; Computer science ; Controllers ; Embedded systems ; Errors ; Fault tolerance ; Fault tolerant computer systems ; Internet protocols ; Quality assurance ; Software testing ; Systems engineering ; Voltage measurement ; Communication
  8. Source: Proceedings - 2009 4th Latin-American Symposium on Dependable Computing, LADC 2009, 1 September 2009 through 4 September 2009, Joao Pessoa ; 2009 , Pages 111-118 ; 9780769537603 (ISBN)
  9. URL: https://ieeexplore.ieee.org/abstract/document/5234310