An Efficient Implementation of the SM Agreement Protocol for a Time Triggered Communication System

Event
SAE Convergence 2010
Authors Abstract
Content
FlexRay is a time triggered automotive communication protocol that connects ECUs (Electronic Control Units) on which distributed automotive applications are executed. If exact agreement (e.g. on physical values measured by redundant sensors on different ECUs) must be reached in the presence of asymmetric communication faults, a byzantine agreement protocol like Signed Messages (SM) can be utilized. This paper gives examples of how byzantine faults can emerge in a FlexRay-based system and proposes optimizations for a FlexRay-specific implementation of the SM protocol. The protocol modifications allow for a reduction in the number of protocol messages under a slightly relaxed fault model, as well as for a reduction in the number of messages to be temporarily stored by the ECUs.
Meta TagsDetails
DOI
https://doi.org/10.4271/2010-01-2320
Pages
11
Citation
Jochim, M., and Forest, T., "An Efficient Implementation of the SM Agreement Protocol for a Time Triggered Communication System," SAE Int. J. Passeng. Cars – Electron. Electr. Syst. 3(2):106-116, 2010, https://doi.org/10.4271/2010-01-2320.
Additional Details
Publisher
Published
Oct 19, 2010
Product Code
2010-01-2320
Content Type
Journal Article
Language
English