InforLorV4, PascalFrancis, Corpus, bibRecord, 000549

Fault confinement mechanisms on CAN: Analysis and improvements

Identifieur interne : 000549 ( PascalFrancis/Corpus ); précédent : 000548; suivant : 000550

Fault confinement mechanisms on CAN: Analysis and improvements

Auteurs : Bruno Gaujal ; Nicolas Navet

Source :

IEEE transactions on vehicular technology [ 0018-9545 ] ; 2005.

RBID : Pascal:05-0320185

Descripteurs français

Pascal (Inist)
- Protocole accès, Système temps réel, Tolérance faute, Brouillage, Processus Markov, Analyse performance.

English descriptors

KwdEn :
- Access protocol, Electromagnetic interference, Fault tolerance, Markov process, Performance analysis, Real time system.

Abstract

The Controller Area Network (CAN) protocol possesses fault confinement mechanisms aimed at differentiating between short disturbances caused by electromagnetic interference (EMI) and permanent failures due to hardware dysfunctioning. In this paper, we derive a Markovian analysis of these mechanisms which enables one to assess the risk of reaching one of the two degraded modes-busoff and error-passive-defined by CAN. We identify several problems with the existing mechanisms, the major one being that the busoff state is reached too easily. In particular, it happens with bursts of EMI causing several consecutive transmission errors. We propose new mechanisms that address these drawbacks. The basic idea is to weigh the progression toward the degraded mode by the quantity of information given by the last transmission. In our experiments, these mechanisms proved to be effective: the hitting time of busoff for nonfaulty nodes increases hugely while faulty systems reach busoff in the same amount of time. In the last part of this paper, implementation issues are discussed and different techniques for tuning the parameters of the algorithm are provided, either off-line or at run-time.

Notice en format standard (ISO 2709)

Pour connaître la documentation sur le format Inist Standard.

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A11	`01`	`1`		`@1 GAUJAL (Bruno)`
A11	`02`	`1`		`@1 NAVET (Nicolas)`
A14	`01`			`@1 ID Laboratory, INRIA @2 38330 Montbonnot @3 FRA @Z 1 aut.`
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A45				`@0 14 ref.`
A47	`01`	`1`		`@0 05-0320185`
A60				`@1 P`
A61				`@0 A`
A64	`01`	`1`		`@0 IEEE transactions on vehicular technology`
A66	`01`			`@0 USA`
C01	`01`		`ENG`	@0 The Controller Area Network (CAN) protocol possesses fault confinement mechanisms aimed at differentiating between short disturbances caused by electromagnetic interference (EMI) and permanent failures due to hardware dysfunctioning. In this paper, we derive a Markovian analysis of these mechanisms which enables one to assess the risk of reaching one of the two degraded modes-busoff and error-passive-defined by CAN. We identify several problems with the existing mechanisms, the major one being that the busoff state is reached too easily. In particular, it happens with bursts of EMI causing several consecutive transmission errors. We propose new mechanisms that address these drawbacks. The basic idea is to weigh the progression toward the degraded mode by the quantity of information given by the last transmission. In our experiments, these mechanisms proved to be effective: the hitting time of busoff for nonfaulty nodes increases hugely while faulty systems reach busoff in the same amount of time. In the last part of this paper, implementation issues are discussed and different techniques for tuning the parameters of the algorithm are provided, either off-line or at run-time.
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Format Inist (serveur)

NO :	PASCAL 05-0320185 INIST
ET :	Fault confinement mechanisms on CAN: Analysis and improvements
AU :	GAUJAL (Bruno); NAVET (Nicolas)
AF :	ID Laboratory, INRIA/38330 Montbonnot/France (1 aut.); LORIA laboratory, INRIA/54506 Vandoeuvre-lès-Nancy/France (2 aut.)
DT :	Publication en série; Niveau analytique
SO :	IEEE transactions on vehicular technology; ISSN 0018-9545; Coden ITVTAB; Etats-Unis; Da. 2005; Vol. 54; No. 3; Pp. 1103-1113; Bibl. 14 ref.
LA :	Anglais
EA :	The Controller Area Network (CAN) protocol possesses fault confinement mechanisms aimed at differentiating between short disturbances caused by electromagnetic interference (EMI) and permanent failures due to hardware dysfunctioning. In this paper, we derive a Markovian analysis of these mechanisms which enables one to assess the risk of reaching one of the two degraded modes-busoff and error-passive-defined by CAN. We identify several problems with the existing mechanisms, the major one being that the busoff state is reached too easily. In particular, it happens with bursts of EMI causing several consecutive transmission errors. We propose new mechanisms that address these drawbacks. The basic idea is to weigh the progression toward the degraded mode by the quantity of information given by the last transmission. In our experiments, these mechanisms proved to be effective: the hitting time of busoff for nonfaulty nodes increases hugely while faulty systems reach busoff in the same amount of time. In the last part of this paper, implementation issues are discussed and different techniques for tuning the parameters of the algorithm are provided, either off-line or at run-time.
CC :	001D04B03A; 001D04B03B
FD :	Protocole accès; Système temps réel; Tolérance faute; Brouillage; Processus Markov; Analyse performance
ED :	Access protocol; Real time system; Fault tolerance; Electromagnetic interference; Markov process; Performance analysis
SD :	Protocolo acceso; Sistema tiempo real; Tolerancia falta; Interferencia; Proceso Markov; Análisis eficacia
LO :	INIST-222H1.354000124554330330
ID :	05-0320185

Links to Exploration step

Pascal:05-0320185

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Fault confinement mechanisms on CAN: Analysis and improvements

Fault confinement mechanisms on CAN: Analysis and improvements

Source :

Descripteurs français

English descriptors

Abstract

Notice en format standard (ISO 2709)

Format Inist (serveur)

Links to Exploration step

Le document en format XML

Pour manipuler ce document sous Unix (Dilib)

Pour mettre un lien sur cette page dans le réseau Wicri