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Analyzing the Impact of Data Errors in Safety-Critical Control Systems

Askerdal, Örjan; Gäfvert, Magnus LU ; Hiller, Martin and Suri, Neeraj (2003) In IEICE Transactions on Information and Systems E86-D(12). p.2623-2633
Abstract
Computers are increasingly used for implementing controlalgorithms in safety-critical embedded applications, such asengine control, braking control and flight surfacecontrol. Consequently, computer errors can have severe impact on the safety of such systems. Addressing the coupling of control performance with computer related errors, this paper develops a methodology for analyzing the impact data errors have on control system dependability. The impact of a data error is measured as the resulting control error. We use maximum bounds on this measure as the criterion forcontrol system failure (i.e., if the control error exceeds a certain threshold, the system has failed).In this paper we a) develop suitable models of computer faults for... (More)
Computers are increasingly used for implementing controlalgorithms in safety-critical embedded applications, such asengine control, braking control and flight surfacecontrol. Consequently, computer errors can have severe impact on the safety of such systems. Addressing the coupling of control performance with computer related errors, this paper develops a methodology for analyzing the impact data errors have on control system dependability. The impact of a data error is measured as the resulting control error. We use maximum bounds on this measure as the criterion forcontrol system failure (i.e., if the control error exceeds a certain threshold, the system has failed).In this paper we a) develop suitable models of computer faults for analysis of control level effects andrelated analysis methods, and b) apply traditional control theoryanalysis methods for understanding the impacts of data errors onsystem dependability. An automobile slip-control brake-system is used as an example showing the viability of our approach. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
verification and dependability analysis, error analysis, error modeling, safety-critical systems, control systems
in
IEICE Transactions on Information and Systems
volume
E86-D
issue
12
pages
2623 - 2633
publisher
The Institute of Electronics, Information and Communication Engineers
external identifiers
  • wos:000187119000016
  • scopus:0842305089
ISSN
0916-8532
language
English
LU publication?
yes
id
3e3df337-1b7a-446b-b291-52576a0170ec (old id 161704)
alternative location
http://search.ieice.org/bin/summary.php?id=e86-d_12_2623&category=D&year=2003&lang=E&abst=
date added to LUP
2007-06-21 13:35:45
date last changed
2018-01-07 09:49:12
@article{3e3df337-1b7a-446b-b291-52576a0170ec,
  abstract     = {Computers are increasingly used for implementing controlalgorithms in safety-critical embedded applications, such asengine control, braking control and flight surfacecontrol. Consequently, computer errors can have severe impact on the safety of such systems. Addressing the coupling of control performance with computer related errors, this paper develops a methodology for analyzing the impact data errors have on control system dependability. The impact of a data error is measured as the resulting control error. We use maximum bounds on this measure as the criterion forcontrol system failure (i.e., if the control error exceeds a certain threshold, the system has failed).In this paper we a) develop suitable models of computer faults for analysis of control level effects andrelated analysis methods, and b) apply traditional control theoryanalysis methods for understanding the impacts of data errors onsystem dependability. An automobile slip-control brake-system is used as an example showing the viability of our approach.},
  author       = {Askerdal, Örjan and Gäfvert, Magnus and Hiller, Martin and Suri, Neeraj},
  issn         = {0916-8532},
  keyword      = {verification and dependability analysis,error analysis,error modeling,safety-critical systems,control systems},
  language     = {eng},
  number       = {12},
  pages        = {2623--2633},
  publisher    = {The Institute of Electronics, Information and Communication Engineers},
  series       = {IEICE Transactions on Information and Systems},
  title        = {Analyzing the Impact of Data Errors in Safety-Critical Control Systems},
  volume       = {E86-D},
  year         = {2003},
}