A new method of failure detection and isolation for sensors and actuators

Author

Cormier, Roger, Jr. ; Matsumura, Toshio ; Asano, Masaharu

Author_Institution

Nissan Motor Co. Ltd., Kanagawa, Japan

fYear

1991

fDate

28 Oct-1 Nov 1991

Firstpage

2139

Abstract

An approach to failure detection and isolation is presented which is based on observer theory and the pole assignment technique in multivariable linear systems. Using a full order feedback gain matrix, the proposed scheme offers the advantage of ensuring that all observer poles are stable and that all eigenvectors are parallel to as many failure events as there are states. The method of solution for the evaluation of the feedback gain matrix, even in the presence of a direct input term to the output, is presented. An example using a 4-wheel steering vehicle is used to illustrate the theory presented

Keywords

automobiles; eigenvalues and eigenfunctions; failure analysis; feedback; multivariable systems; poles and zeros; stability; 4-wheel steering vehicle; actuators; eigenvectors; failure detection; failure isolation; full order feedback gain matrix; multivariable linear systems; observer pole stability; observer theory; pole assignment; sensors; Actuators; Fault detection; Laboratories; Linear systems; Observers; Output feedback; State estimation; State feedback; Vectors; Vehicle dynamics;

fLanguage

English

Publisher

ieee

Conference_Titel

Industrial Electronics, Control and Instrumentation, 1991. Proceedings. IECON '91., 1991 International Conference on

Conference_Location

Kobe

Print_ISBN

0-87942-688-8

Type

conf

DOI

10.1109/IECON.1991.239011

Filename

239011