Automotive Architecture Topologies: Analysis for Safety-Critical Autonomous Vehicle Applications

Research output: Contribution to journalArticleAcademicpeer-review

Abstract

Safety-critical systems such as Advanced Driving Assistance Systems and Autonomous Vehicles require redundancy to satisfy their safety requirements and to be classified as fail-operational. Introducing redundancy in a system with high data rates and processing requirements also has a great impact on architectural design decisions. The current self-driving vehicle prototypes do not use a standardized system architecture but base their design on existing vehicles and the available components. In this work, we provide a novel analysis framework that allows us to qualitatively and quantitatively evaluate an in-vehicle architecture topology and compare it with others.With this framework, we evaluate different variants of two common topologies: domain and zone-based architectures. Each topology is evaluated in terms of total cost, failure probability, total communication cable length, communication load distribution, and functional load distribution.We introduce redundancy in selected parts of the systems using our automated process provided in the framework, in a safety-oriented design process that enables the ISO26262 Automotive Safety Integrity Level decomposition technique. After every design step, the architecture is re-evaluated. The advantages and disadvantages of the different architecture variants are evaluated to guide the designer towards the choice of correct architecture, with a focus on the introduction of redundancy.

Original languageEnglish
Article number9410252
Pages (from-to)62837-62846
Number of pages10
JournalIEEE Access
Volume9
DOIs
Publication statusPublished - 21 Apr 2021

Bibliographical note

Publisher Copyright:
CCBY

Copyright:
Copyright 2021 Elsevier B.V., All rights reserved.

Keywords

  • ADAS
  • ASIL decomposition
  • Automotive engineering
  • AV
  • Corporate acquisitions
  • functional safety
  • Hardware
  • Redundancy
  • redundancy
  • Safety
  • safety-critical systems
  • Standards
  • Topology

Fingerprint Dive into the research topics of 'Automotive Architecture Topologies: Analysis for Safety-Critical Autonomous Vehicle Applications'. Together they form a unique fingerprint.

Cite this