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

Volume

2

fYear

1999

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Digital Avionics Systems Conference, 1999. Proceedings. 18th

Conference_Location

St Louis, MO

Print_ISBN

0-7803-5749-3

Type

conf

DOI

10.1109/DASC.1999.822108

Filename

822108