Paper Info
Title
A Study of Failure Models in Feedback Control Systems
Abstract
Abstract: Feedback Control Systems have a peculiar behavior that allows them to compensate for disturbances in the controlled application. This paper investigates whether this resilience also extends to disturbances originating from faults in the controller itself. The question of what kind of failure model is more effective in this type of system is addressed, with three different models being studied: arbitrary failure, fail-silent, and fail-bounded. The study is conducted essentially by experimental fault-injection in the controller of one of the best known and most demanding of the benchmarks used in the control systems area: an inverted pendulum. The considered failure models are compared according to criteria based on the quality of the control action. Other insights gained from the experiments made are described, for instance on how to significantly increase dependability at a very low-cost in feedback controllers, and on the need for a different kind of real-time scheduling algorithms.
Year
DOI
Venue
2001
10.1109/DSN.2001.941416
Goteborg, Sweden
Keywords
Field
DocType
control systems area,feedback controller,control action,arbitrary failure,feedback control systems,different model,failure model,controlled application,considered failure model,different kind,failure models,error correction,scheduling,application software,resilience,process control,inverted pendulum,hardware,real time systems,failure analysis,control system,control systems,feedback,dependability,feedback control
Psychological resilience,Control theory,Dependability,Inverted pendulum,Scheduling (computing),Computer science,Real-time computing,Control system,Control reconfiguration,Fault injection,Distributed computing
Conference
ISBN
Citations 
PageRank 
0-7695-1101-5
15
2.70
References 
Authors
10
4
Name
Order
Citations
PageRank
João Carlos Cunha16113.55
Ricardo Maia2153.04
Mário Zenha Rela312416.53
João Gabriel Silva461863.55