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Engineering and Hardening of Functional Fail-Operational Architectures for Highly Automated Driving

: Adler, Rasmus; Akram, Mohammed Naveed; Feth, Patrik; Fukuda, Takeshi; Ishigooka, Tasuku; Otsuka, Satoshi; Schneider, Daniel; Yoshimura, Kentaro

Postprint urn:nbn:de:0011-n-5779049 (984 KByte PDF)
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Created on: 21.2.2020

Wolter, K. ; Institute of Electrical and Electronics Engineers -IEEE-; IEEE Computer Society:
IEEE 30th International Symposium on Software Reliability Engineering Workshops, ISSREW 2019. Proceedings : 28-31 October 2019, Berlin, Germany
Los Alamitos, Calif.: IEEE Computer Society Conference Publishing Services (CPS), 2019
ISBN: 978-1-7281-5138-0
ISBN: 978-1-7281-5139-7
International Symposium on Software Reliability Engineering (ISSRE) <30, 2019, Berlin>
Conference Paper, Electronic Publication
Fraunhofer IESE ()
functional fail-operational; highly automated driving; adaptation modeling; Operational design domain

Rising automation levels in the automotive domain demand a shift from the fail-safe to the fail-operational paradigm. Fail-operational architectures and behaviors are inherently more complex and thus require special diligence from a safety engineering point of view. In this work, we present how we tailored and applied a methodology that facilitates the design of fail-operational architectures from early design stages on by enabling informed judgment regarding the gradually evolved architecture’s fitness for purpose. The method specifically considers resilience regarding dynamic changes in environmental conditions, including V2X aspects and internal capabilities. In this paper, we summarize our experiences in applying the methodology in a highway pilot case study. Furthermore, we present essential extensions of the methodology for modeling and evaluating the operational design domain.