An overview of the approaches for automotive safety integrity levels allocation
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Publication date
2018-06Keyword
ISO 26262Optimization
Exact solver
ASIL allocation
Automotive system
Safety requirement
Functional safety
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© The Author(s) 2018. Open Access. This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.Peer-Reviewed
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openAccess
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Show full item recordAbstract
ISO 26262, titled Road Vehicles–Functional Safety, is the new automotive functional safety standard for passenger vehicle industry. In order to accomplish the goal of designing and developing dependable automotive systems, ISO 26262 uses the concept of Automotive Safety Integrity Levels (ASILs), the adaptation of Safety Integrity Levels. ASILs are allocated to the components and subsystems that can cause system failure and malfunctions that lead to hazards. ASILs allocation is a hard problem consists of finding the optimal allocation of safety levels to the system architecture which must guarantee that the highest safety requirements are met while development cost of the automotive system is kept minimum. There were many successful attempts to solve this problem using different techniques. However, it is worth pointing out that there is an absence of a review that provides an in-depth study of all the existing methods and highlights their merits and demerits. This paper presents an overview of different approaches that were used to solve ASILs allocation problem. The review provides an overview of safety requirements including the related standards followed by a study of the resolution methods of the existing approaches. The study of each approach provides a detailed explanation of the used methodology and a discussion of its strength and weaknesses including the main open challenges.Version
Published versionCitation
Gheraibia Y, Kabir S, Djafri K et al (2018) An overview of the approaches for automotive safety integrity levels allocation. Journal of Failure Analysis and Prevention. 18(3): 707-720.Link to Version of Record
https://doi.org/10.1007/s11668-018-0466-9Type
Articleae974a485f413a2113503eed53cd6c53
https://doi.org/10.1007/s11668-018-0466-9