Component-level ASIL decomposition for automotive architectures

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

5 Citations (Scopus)

Abstract

The Automotive industry is evolving towards a more electronics-assisted driving and self-driving functionality. The addition of complex subsystems has a great impact on the current vehicle architectures, leading to safety concerns. In this work we present a technique that follows the ISO 26262: Road Vehicles-Functional Safety standard to introduce redundancy in the architecture by using ASIL decomposition, and perform a safety analysis of the modelled system. A three-layer model is used to describe the application, the resources, and the physical space of the vehicle. In this paper we introduce novel model transformations to replicate parts of the application following ASIL decomposition rules. Finally, we perform a cost analysis and a probabilistic fault tree analysis on the architecture, making a comparison between different possible solutions. The advantages of these techniques, such as traceability and scalability, are shown by modelling and analysing the lateral control application of a real truck platooning system.

Original languageEnglish
Title of host publicationProceedings - 49th Annual IEEE/IFIP International Conference on Dependable Systems and Networks Workshop, DSN-W 2019
Place of PublicationPiscataway
PublisherInstitute of Electrical and Electronics Engineers
Pages62-69
Number of pages8
ISBN (Electronic)978-1-7281-3030-9
DOIs
Publication statusPublished - 1 Jun 2019
Event49th Annual IEEE/IFIP International Conference on Dependable Systems and Networks Workshop, DSN-W 2019 - Portland, United States
Duration: 24 Jun 201927 Jun 2019

Conference

Conference49th Annual IEEE/IFIP International Conference on Dependable Systems and Networks Workshop, DSN-W 2019
CountryUnited States
CityPortland
Period24/06/1927/06/19

Keywords

  • ASIL Decomposition
  • EE Automotive Architecture
  • Functional Safety
  • Probabilistic FTA

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