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A novel modelling pattern for establishing failure models and assisting architectural exploration in an automotive context
RISE., SP – Sveriges Tekniska Forskningsinstitut, SP Elektronik.
RISE., SP – Sveriges Tekniska Forskningsinstitut, SP Elektronik, Pålitliga system.
Volvo, Sweden.
2012 (Engelska)Ingår i: 31st International Conference on Computer Safety, Reliability, and Security, SAFECOMP 2012, 2012, Vol. 7612, s. 247-257s. 247-257Konferensbidrag, Publicerat paper (Refereegranskat)
Abstract [en]

With the introduction of the automotive functional safety standard ISO 26262, several challenges related to the representation of dependability information has emerged. This paper addresses how safety requirements can be formalized; which is mandatory for high-integrity requirements. Particular focus is given to asymmetric failures. Such a failure can be caused by a communication fault, and implies that data in a distributed system will be inconsistent among system outputs or within the system (incorrect, corrupt or omitted, etc.). We investigate along two lines; 1) The EAST-ADL automotive architecture description language is extended with a capability to represent asymmetric faults and failures. 2) The Compute-Distribute Results (CDR) pattern is introduced to assist reasoning about distributed systems, in particular potential inconsistencies. We show how this can support architectural decisions regarding selection of communication topology and communication technology for a given distributed system. A brake-by-wire application and FlexRay bus are analysed to illustrate the concepts.

Ort, förlag, år, upplaga, sidor
2012. Vol. 7612, s. 247-257s. 247-257
Nyckelord [en]
Asymmetric failure, Automotive, AUTOSAR, Distributed system, EAST-ADL, Failure model, FlexRay, ISO 26262, System modelling, Taxonomy
Nationell ämneskategori
Naturvetenskap
Identifikatorer
URN: urn:nbn:se:ri:diva-12545DOI: 10.1007/978-3-642-33678-2_21Scopus ID: 2-s2.0-84867611792Lokalt ID: 23992OAI: oai:DiVA.org:ri-12545DiVA, id: diva2:970369
Konferens
Computer Safety, Reliability, and Security (31st International Conference on Computer Safety, Reliability, and Security, SAFECOMP 2012; Magdeburg; Germany; 25-28 Sept., 2012)
Tillgänglig från: 2016-09-13 Skapad: 2016-09-13 Senast uppdaterad: 2021-01-13Bibliografiskt granskad

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