{"title":"Generalized formula for the calculation of a probabilistic metric for random hardware failures in redundant subsystems","authors":"Atsushi Sakurai","doi":"10.1109/ISPCE.2017.7935021","DOIUrl":null,"url":null,"abstract":"The introduction of International Organization for Standardization (ISO) standard 26262 “Road vehicles — Functional safety” in 2011 provided a state-of-the-art methodology for achieving functional safety in automotive electrical and/or electronic (E/E) systems. The standard defines the probabilistic metric for random hardware failures (PMHF) as the average probability of a violation of a safety goal associated with a failure over a vehicle's lifetime and architecture metrics. Although a PMHF formula is provided, the explanation of the standard is insufficient. In this paper, we propose a method to calculate the PMHF and expand the application to redundant subsystems that are not adequately described in the standard.","PeriodicalId":211888,"journal":{"name":"2017 IEEE Symposium on Product Compliance Engineering (ISPCE)","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2017-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"5","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2017 IEEE Symposium on Product Compliance Engineering (ISPCE)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ISPCE.2017.7935021","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 5
Abstract
The introduction of International Organization for Standardization (ISO) standard 26262 “Road vehicles — Functional safety” in 2011 provided a state-of-the-art methodology for achieving functional safety in automotive electrical and/or electronic (E/E) systems. The standard defines the probabilistic metric for random hardware failures (PMHF) as the average probability of a violation of a safety goal associated with a failure over a vehicle's lifetime and architecture metrics. Although a PMHF formula is provided, the explanation of the standard is insufficient. In this paper, we propose a method to calculate the PMHF and expand the application to redundant subsystems that are not adequately described in the standard.