A Fault Tolerant Time Interval Process for Functional Safety Development

2019-01-0110

04/02/2019

Event
WCX SAE World Congress Experience
Authors Abstract
Content
During development of complex automotive technologies, a significant engineering effort is often dedicated to ensuring the safe performance of these systems. An important aspect to consider when assessing the viability of different safety designs or strategies is the time period from the occurrence of a fault to the violation of a Safety Goal (SG). This time period is commonly referred to as the Fault Tolerant Time Interval (FTTI). In Automotive Safety, ISO 26262 [1] calls for the identification and appropriate partitioning of the FTTI, however very little guidance is provided on how to do this. This paper presents a process, covering the entire safety development lifecycle, for the identification of timing constraints and the development of associated requirements necessary to prevent Safety Goal violations.
Meta TagsDetails
DOI
https://doi.org/10.4271/2019-01-0110
Pages
9
Citation
Denomme, D., Hooson, S., and Winkelman, J., "A Fault Tolerant Time Interval Process for Functional Safety Development," SAE Technical Paper 2019-01-0110, 2019, https://doi.org/10.4271/2019-01-0110.
Additional Details
Publisher
Published
Apr 2, 2019
Product Code
2019-01-0110
Content Type
Technical Paper
Language
English