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Comprehensive concept-phase system safety analysis for hybrid-electric vehicles utilizing automated driving functions

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dc.contributor.authorKnopf, Matthew David, author
dc.contributor.authorBradley, Thomas, advisor
dc.contributor.authorOlsen, Daniel, committee member
dc.contributor.authorPasricha, Sudeep, committee member
dc.date.accessioned2019-09-10T14:35:25Z
dc.date.available2019-09-10T14:35:25Z
dc.date.issued2019
dc.description.abstractAutomotive system safety (SS) analysis involving automated driving functions (ADFs) and advanced driver assistance systems (ADAS) is an active subject of research but highly proprietary. A comprehensive SS analysis and a risk informed safety case (RISC) is required for all complex hybrid-vehicle builds especially when utilizing ADFs and ADAS. Industry standard SS procedures have been developed and are accessible but contain few detailed instructions or references for the process of completing a thorough automotive SS analysis. In this work, a comprehensive SS analysis is performed on an SAE-Level 2 autonomous hybrid-vehicle architecture in the concept phase which utilizes lateral and longitudinal automated corrective control actions. This paper first outlines a proposed SS process including a cross-functional SS working group procedure, followed by the development of an item definition inclusive of the ADFs and ADAS and an examination of 5 hazard analysis and risk assessment (HARA) techniques common to the automotive industry that were applied to 11 vehicle systems, and finally elicits the safety goals and functional requirements necessary for safe vehicle operation. The results detail functional failures, causes, effects, prevention, and mitigation methods as well as the utility of, and instruction for completing the various HARA techniques. The conclusion shows the resulting critical safety concerns for an SAE Level-2 autonomous system can be reduced through the use of the developed list of 116 safety goals and 950 functional safety requirements.
dc.format.mediumborn digital
dc.format.mediummasters theses
dc.identifierKnopf_colostate_0053N_15481.pdf
dc.identifier.urihttps://hdl.handle.net/10217/197260
dc.languageEnglish
dc.language.isoeng
dc.publisherColorado State University. Libraries
dc.relation.ispartof2000-2019
dc.rightsCopyright and other restrictions may apply. User is responsible for compliance with all applicable laws. For information about copyright law, please see https://libguides.colostate.edu/copyright.
dc.subjectautomated driving functions
dc.subjecthazard analysis and risk assessment
dc.subjectsystems safety
dc.subjectconcept development
dc.subjectadvanced driver assist systems
dc.subjecthybrid electric vehicles
dc.titleComprehensive concept-phase system safety analysis for hybrid-electric vehicles utilizing automated driving functions
dc.typeText
dcterms.rights.dplaThis Item is protected by copyright and/or related rights (https://rightsstatements.org/vocab/InC/1.0/). You are free to use this Item in any way that is permitted by the copyright and related rights legislation that applies to your use. For other uses you need to obtain permission from the rights-holder(s).
thesis.degree.disciplineMechanical Engineering
thesis.degree.grantorColorado State University
thesis.degree.levelMasters
thesis.degree.nameMaster of Science (M.S.)

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