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Defining Autonomous Functions Using Iterative Hazard Analysis and Requirements Refinement
RISE - Research Institutes of Sweden, Säkerhet och transport, Elektronik. (Dependable Systems)ORCID-id: 0000-0003-4069-6252
Volvo Cars, Sweden.
Comentor AB, Sweden.
KTH Royal Institute of Technology, Sweden.
Visa övriga samt affilieringar
2016 (Engelska)Ingår i: Computer Safety, Reliability, and Security: SAFECOMP 2016 Workshops / [ed] Amund Skavhaug Jérémie Guiochet, Erwin Schoitsch, Friedemann Bitsch, 2016, Vol. 9923, s. 286-297Konferensbidrag, Publicerat paper (Refereegranskat)
Abstract [en]

Autonomous vehicles are predicted to have a large impact on the field of transportation and bring substantial benefits, but they present new challenges when it comes to ensuring safety. Today the standard ISO 26262:2011 treats each defined function, or item, as a complete scope for functional safety; the driver is responsible for anything that falls outside the items. With autonomous driving, it becomes necessary to ensure safety at all times when the vehicle is operating by itself. Therefore, we argue that the hazard analysis should have the wider scope of making sure the vehicle’s functions together fulfill its specifications for autonomous operation. The paper proposes a new iterative work process where the item definition is a product of hazard analysis and risk assessment rather than an input. Generic operational situation and hazard trees are used as a tool to widen the scope of the hazard analysis, and a method to classify hazardous events is used to find dimensioning cases among a potentially long list of candidates. The goal is to avoid dangerous failures for autonomous driving due to the specification of the nominal function being too narrow.

Ort, förlag, år, upplaga, sidor
2016. Vol. 9923, s. 286-297
Serie
Lecture Notes in Computer Science (LNCS), ISSN 0302-9743 ; 9923
Nyckelord [en]
ISO 26262, Functional safety, Autonomous vehicles, Hazard analysis
Nationell ämneskategori
Inbäddad systemteknik
Identifikatorer
URN: urn:nbn:se:ri:diva-32370DOI: 10.1007/978-3-319-45480-1_23Scopus ID: 2-s2.0-84988391801ISBN: 978-3-319-45479-5 (tryckt)OAI: oai:DiVA.org:ri-32370DiVA, id: diva2:1152574
Konferens
5th International Workshop on Next Generation of System Assurance Approaches for Safety-Critical Systems (SASSUR 2016), September 20, 2016, Trondheim, Norway
Projekt
FUSE
Forskningsfinansiär
Vinnova, 2013-02650Tillgänglig från: 2017-10-25 Skapad: 2017-10-25 Senast uppdaterad: 2019-07-10Bibliografiskt granskad

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Warg, Fredrik

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