The Time-Triggered Architecture (TTA) is a distributed architecture for high-dependability real-time systems such as break-by-wire or steer-by-wire systems. This paper is devoted to the fault-tolerance and fault-handling capabilities of the TTA. We will present the architectural and algorithmic features of the time-triggered communication protocol TTP/C that allow isolation of arbitrary failures of a node-computer in the distributed system. Having node failures isolated, the introduction of redundant nodes accompanied by voting services located in a generic fault-tolerance layer makes the architecture tolerant to Byzantine failures of node-computers. We will also present the mechanisms that detect multiple failure scenarios at the communication system level and provide means for rapid handling of and deterministic recovery from such situations. Based on a sample brake-by-wire application we will provide some figures concerning the performance of the architecture and discuss how the system engineer benefits from the inherent properties of the TTA.


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    Title :

    Tolerating Arbitrary Node Failures in the Time-Triggered Architecture


    Additional title:

    Sae Technical Papers


    Contributors:

    Conference:

    SAE 2001 World Congress ; 2001



    Publication date :

    2001-03-05




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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