Title :
A new object-oriented fault detection and isolation strategy based on bond-graph formalism
Author :
Simon, Stefan ; Liu, Siyuan
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of Kaiserslautern, Kaiserslautern, Germany
Abstract :
In this paper model-based fault detection and isolation (FDI) of complex multidisciplinary engineering systems is considered. Such systems are for example commercial vehicles, mechatronic systems and process plants in the chemical industry. The overall system is considered as a composition of objects. For each object an observer-based residual generator described by a bond-graph (BG) is developed. In the next step these observer objects are merged to the overall FDI system. The stability of this composition is shown. Furthermore a stepwise procedure to narrow down the fault localization is given.
Keywords :
bond graphs; fault diagnosis; fault tolerant computing; object-oriented methods; observers; FDI system; bond-graph formalism; chemical industry; commercial vehicles; complex multidisciplinary engineering systems; fault localization; mechatronic systems; object-oriented fault detection strategy; object-oriented fault isolation strategy; object-oriented modeling; observer-based residual generator; process plants; stepwise procedure; Detectors; Junctions; Mathematical model; Object oriented modeling; Observers; Polynomials; Stability analysis;
Conference_Titel :
American Control Conference (ACC), 2012
Conference_Location :
Montreal, QC
Print_ISBN :
978-1-4577-1095-7
Electronic_ISBN :
0743-1619
DOI :
10.1109/ACC.2012.6314645
