Fault and mode switching identification for hybrid systems with application to electro-hydraulic system in vehicles

Ming Yu, Ming Luo, Shai Arogeti, Danwei Wang, Xinzheng Zhang

Research output: Chapter in Book/Report/Conference proceedingChapterpeer-review

1 Scopus citations

Abstract

This paper describes a methodology for simultaneous identification of fault parame-ters and mode switching events for hybrid systems. The method is developed based on the notion of Global Analytical Redundancy Relations (GARR) from the bond graph model of the hybrid system. A unified formula with mode change time sequence and initial mode coefficients (IMC) is derived to represent the mode switching. It employs Genetic Algorithm (GA) to search for fault parameters and mode switching time stamps. Fault parameters, mode switching time stamps and all IMC are encoded into one chromosome as a potential solution of the identification process. GARRs are used as a fitness index in GA search. An electro-hydraulic system of vehicle is studied to illustrate the efficiency of the proposed algorithm.

Original languageEnglish
Title of host publicationIntelligent Unmanned Systems
Subtitle of host publicationTheory and Applications
EditorsAngus Budiyono, Bambang Riyanto, Endra Joelianto
Pages257-274
Number of pages18
DOIs
StatePublished - 19 Mar 2009
Externally publishedYes

Publication series

NameStudies in Computational Intelligence
Volume192
ISSN (Print)1860-949X

ASJC Scopus subject areas

  • Artificial Intelligence

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