Title :
Control laws with hierarchical switch logic to accomodate EME-induced sensor failures
Author :
Bajpai, Gaurav ; Chang, B.C. ; Lau, Alan
Author_Institution :
Dept. of Mech. Eng. & Mech., Drexel Univ., Philadelphia, PA, USA
fDate :
6/21/1905 12:00:00 AM
Abstract :
In this paper the issue of fault tolerance of flight control systems to sensor failures due to harsh electromagnetic environments is addressed. Severe consequences of these failures can be avoided or at least mitigated to a large degree by using fault tolerant software design. An array of control laws anticipating sensor failures is designed. A hierarchical logic to switch between these controllers is programmed, allowing effective and rapid reconfiguration of the system to accommodate for failed sensors
Keywords :
aircraft computers; aircraft control; electromagnetic interference; fault tolerant computing; predictive control; EME-induced sensor failures; EMI; automatic landing system; control design; control laws; digital system upset; fault tolerance; fault tolerant software design; flight control computer; flight control systems; harsh electromagnetic environments; hierarchical switch logic; model predictive scheme; rapid reconfiguration; Automatic control; Control systems; Fault tolerance; Fault tolerant systems; Logic; Mechanical sensors; Sensor arrays; Sensor phenomena and characterization; Sensor systems; Switches;
Conference_Titel :
Digital Avionics Systems Conference, 1999. Proceedings. 18th
Conference_Location :
St Louis, MO
Print_ISBN :
0-7803-5749-3
DOI :
10.1109/DASC.1999.822108
