Using functional maintenance to improve fault tolerance

Author

Umeda, Yohtaro ; Tomiyama, Tetsuo ; Yoshikawa, Hiroyuki ; Shimomura, Yoshiki

Author_Institution

Tokyo Univ., Japan

Volume

9

Issue

3

fYear

1994

fDate

6/1/1994 12:00:00 AM

Firstpage

25

Lastpage

31

Abstract

A machine can be made self-maintaining by taking advantage of functionally similar components when faults occur. The performance of the machine might degrade, but the required functions will continue. A self-maintenance machine should: constantly monitor its state; judge normal or faulty status using monitor data; diagnose even unknown faults by itself; generate a repair plan (based on the diagnostic results) that would enable the machine to perform at least some of the required functions; and execute the repair plan.<>

Keywords

engineering computing; maintenance engineering; model-based reasoning; planning (artificial intelligence); real-time systems; redundancy; reliability; Functional Redundancy Designer; fault diagnosis; fault tolerance; faulty status judgement; functional maintenance; functionally similar components; model-based reasoner; performance degradation; repair plan generation; self-maintenance machine; state monitoring; unknown faults; Aircraft; Condition monitoring; Control systems; Degradation; Design engineering; Fault tolerance; Fault tolerant systems; Maintenance; Prototypes; Redundancy;

fLanguage

English

Journal_Title

IEEE Expert

Publisher

ieee

ISSN

0885-9000

Type

jour

DOI

10.1109/64.311276

Filename

311276