Fault Analysis of a Distributed Flight Control System

This paper presents how state consistency among distributed control nodes is maintained in the presence of faults. We analyze a fault tolerant semi-synchronous architecture concept of a Distributed Flight Control System (DFCS). This architecture has been shown robust against transient faults of continuous signals through inherent replica consistency [1]. This approach necessitates neither atomic broadcast nor replica determinism. Here, we extend the analysis of replica consistency property to confirm robustness against transient faults in discrete signals in presence of a single permanent fault in a control node. The paper is based on a case study on JAS 39 Gripen, a modern fourth generation multi purpose combat aircraft, presently operating with a centralized FCS. Our goal is to design the DFCS fault management mechanisms so that the distributed treatment of faults corresponds to the existing non-distributed FCS. In particular, fault management mechanisms not existing in the present ...

• Type: Conference
• Year: 2005
• Where: HICSS
• Authors: Kristina Forsberg, Simin Nadjm-Tehrani, Jan Torin
• Keywords: Biometrics, Control Node, HICSS 2005, Replica Consistency, System Sciences, Transient Faults