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Identification of multiple faults of the aircraft engine digital control system

  • Chun Juan Liu*
  • , Hua Song
  • , Hong Zhuan Qiu
  • , Xin Yu Zhu
  • *Corresponding author for this work
  • Beihang University
  • Civil Aviation Flight University of China

Research output: Contribution to journalArticlepeer-review

Abstract

A method for multiple faults identification of aircraft engine digital control system based on fuzzy logic was presented. First of all, a nonlinear model of the digital control system of some turbo-jet engine was built up with introduction of Takagi-Sugeno (T-S) fuzzy model, and then full-decoupling parity equation was applied to detect and isolate the multiple faults, in combination with Kalman filter in identifying the fault parameters of sensors and actuators. The simulation results show that this method can effectively detect and isolate the multiple faults. Also, it can precisely identify the parameters of the faults.

Original languageEnglish
Pages (from-to)1426-1431
Number of pages6
JournalHangkong Dongli Xuebao/Journal of Aerospace Power
Volume24
Issue number6
StatePublished - Jun 2009

Keywords

  • Aircraft engine digital control system
  • Fault identification
  • Full decoupled parity equation
  • Kalman filter
  • Multiple faults
  • Takagi-Sugeno (T-S) fuzzy model

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