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Sûreté de fonctionnement d'architectures informatiques embarquées sur automobile

Christian Ziegler 1
1 LAAS-TSF - Équipe Tolérance aux fautes et Sûreté de Fonctionnement informatique
LAAS - Laboratoire d'analyse et d'architecture des systèmes
Abstract : The aim of the work presented in this dissertation is to guarantee that the increasing complexity of automotive embedded computer architectures does not degrade the dependability of the vehicle with respect to that of the vehicle containing classical mechanical equipment. The current tendency towards integration of the different embedded computer systems leads us to develop a spectrum of architectures allowing us to illustrate, classify and compare several possibilities between an entirely-federated architecture at one end of the spectrum and an entirely-integrated architecture at the other. After a qualitative comparison of the presented architectures (focussing on the cost criteria), we concentrate on quantitative evaluation of dependability. Among the different evaluation techniques generally used we choose a probabilistic evaluation technique using Generalised Stochastic Petri Nets. The originality of the method is that it models functional aspects independently from the architecture. We define the dependability measures on the base of the functional model whose changes are dictated by an underlying architecture model. Several architectures are modeled without changing the functional model. The results obtained for two functions, an airbag and a steer-by-wire system, allow conclusions to be drawn concerning the choice of an architecture for a given function.
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Contributor : Emilie Marchand <>
Submitted on : Tuesday, April 3, 2007 - 4:52:53 PM
Last modification on : Thursday, June 10, 2021 - 3:05:55 AM
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  • HAL Id : tel-00139873, version 1


Christian Ziegler. Sûreté de fonctionnement d'architectures informatiques embarquées sur automobile. Réseaux et télécommunications [cs.NI]. Institut National Polytechnique de Toulouse - INPT, 1996. Français. ⟨tel-00139873⟩



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