Input reconstruction by means of system inversion: Application to fault detection and isolation

F. Szigeti, J. Bokor, A. Edelmayer

Research output: Contribution to journalConference article

10 Citations (Scopus)


This paper attempts to look at the fundamental problem of fault detection and isolation (FDI) in nonlinear systems. Using the idea of input reconstruction by means of dynamic inversion the authors first discuss the properties of input (or fault) observability in linear systems. The extension of the results to nonlinear systems as well as the mathematical conditions of the calculation of the inverse system, which provides the inverse in finite algorithmic steps, are given. The applicability of the inversion process to fault reconstruction in nonlinear systems is demonstrated.

Original languageEnglish
Pages (from-to)13-18
Number of pages6
JournalIFAC Proceedings Volumes (IFAC-PapersOnline)
Issue number1
Publication statusPublished - Jan 1 2002
Event15th World Congress of the International Federation of Automatic Control, 2002 - Barcelona, Spain
Duration: Jul 21 2002Jul 26 2002



  • Fault detection and isolation
  • Input observability
  • Input reconstruction
  • Inverse system
  • Linear and non-linear systems

ASJC Scopus subject areas

  • Control and Systems Engineering

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