Talks and Poster Presentations (with Proceedings-Entry):
H. Kopetz, G. Bauer, S. Poledna:
"Tolerating Arbitrary Node Failures in the Time-Triggered Architecture";
Talk: SAE World Congress,
Detroit, MI, USA;
2001-03-01; in: "Proceedings of the SAE 2001 World Congress",
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.
Electronic version of the publication:
Created from the Publication Database of the Vienna University of Technology.