A Quantitative Safety Assessment Methodology for Safety-Critical Programmable Electronic Systems Using Fault Injection

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A Quantitative Safety Assessment Methodology for Safety-Critical Programmable Electronic Systems Using Fault Injection

Johnson, Barry W. / Elks, Carl R. / Sekhar, Meenakshi / Reynolds, Michael A. / George, Nishant / DeLong, Todd

Given the increased use of programmable embedded electronic systems (PEES) in automotive applications and their vital importance, it is not only important for engineers to design PEES in such a way to meet or exceed safety requirements but also quantify how “safe” these systems are. At the University of Virginia's Center for Safety-Critical Systems, we have developed a safety quantification methodology for embedded real time safety-related systems. The goal of the safety quantification methodology is to provide a generic but rigorous and systematic way of characterizing the dependability behavior of embedded systems that is applicable to a broad range of applications from automotive to nuclear. This paper presents a quantitative safety assessment methodology for safety-critical embedded systems using fault injection (FI). This methodology has been developed, refined and applied to a number of commercial safety-grade systems in the railway, nuclear and avionics industries. Additionally, we present several novel techniques that we developed to overcome long-standing challenges associated with fault injection based safety assessment.

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Dokumentinformationen

Titel :

A Quantitative Safety Assessment Methodology for Safety-Critical Programmable Electronic Systems Using Fault Injection

Weitere Titelangaben:

Sae International Journal of Passenger Cars- Electronic and Electrical Systems
Sae Int. J. Passeng. Cars – Electron. Electr. Syst

Beteiligte:

Johnson, Barry W. (Autor:in) / Elks, Carl R. (Autor:in) / Sekhar, Meenakshi (Autor:in) / Reynolds, Michael A. (Autor:in) / George, Nishant (Autor:in) / DeLong, Todd (Autor:in)

Kongress:

SAE World Congress & Exhibition ; 2009

Erschienen in:

Sae International Journal of Passenger Cars - Electronic and Electrical Systems ; 2 , 1 ; 287-300

Erscheinungsdatum :

2009-04-20

Format / Umfang :

14 pages

ISSN :

1946-4614 , 1946-4622

DOI :

https://doi.org/10.4271/2009-01-0760