DocumentCode :
1845021
Title :
Future architecture for flight control systems
Author :
Alstrom, K. ; Torin, Jan
Author_Institution :
Chalmers Univ. of Technol., Gothenburg, Sweden
Volume :
1
fYear :
2001
fDate :
14-18 Oct 2001
Abstract :
The development of fault tolerant embedded control systems, such as flight control systems, FCS, is currently highly specialized and time consuming. We introduce a conceptual architecture for the next decade control system where all control and logic is distributed to a number of computer nodes locally linked to actuators and connected via a communication network. In this way we substantially decrease the lifecycle cost of such embedded systems and acquire scalable fault tolerance. Fault tolerance is based on redundancy and in our concept permanent faults are covered by hardware replication and transient faults, fault detection and processing by software techniques. With intelligent nodes and the use of inherent redundancy a robust and simple fault tolerant system is introduced with a minimum of both hardware and bandwidth requirements. The study is based on an FCS for JAS 39 Gripen, a multirole combat aircraft that is statically unstable at subsonic speed
Keywords :
aircraft computers; aircraft control; aircraft maintenance; distributed control; embedded systems; fault diagnosis; fault tolerant computing; redundancy; COTS; JAS 39 Gripen; actuator node; communication network; computer performance; conceptual architecture; distributed control systems; fault detection; fault processing; fault tolerant embedded control systems; flight control systems; hardware replication; inherent redundancy; intelligent nodes; lifecycle cost; multirole combat aircraft; next decade control system; predictability; reduced complexity; reduced maintenance cost; redundancy; scalable fault tolerance; software techniques; task allocation; transient faults; Aerospace control; Communication system control; Computer architecture; Computer networks; Control systems; Distributed computing; Fault tolerant systems; Hardware; Logic; Redundancy;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Digital Avionics Systems, 2001. DASC. 20th Conference
Conference_Location :
Daytona Beach, FL
Print_ISBN :
0-7803-7034-1
Type :
conf
DOI :
10.1109/DASC.2001.963308
Filename :
963308
Link To Document :
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