A nonlinear approach with gain schedule control adaptation for a complete-model diesel-engine diagnosis

Chady Nohra, Hassan Noura, Chady El Moucary, Rafic Younes

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

This paper proposes an innovative fault-diagnosis system for a turbocharged diesel engine with variable-geometry turbocharger control. Numerous and diversified actuator and/or sensors faults are identified and analyzed such as air-leakage in the admission collector, compressor malfunctioning, intake-valves fault, intercooler fault, deterioration in the turbine-compressor coupling, defect in the variable geometry of the turbine and fault in rotational speed sensor. Furthermore, a complete non-linear engine model with four state variables is adopted. The proposed strategy consists in developing a Fault Detection and Isolation algorithm (FDI) based on the theory of Gain Schedule Control operated on a Takagi-Sugeno model of the diesel. Simulations with a nonlinear Diesel model in the presence of noise were carried out and which demonstrated the effectiveness of the proposed algorithm. Moreover, the robustness properties of the used H-infinity FDI filters exhibited significant rejection of disturbances and noise-effects attenuation which make the proposed strategy adequately close to the conditions of the real physical system.

Original languageEnglish
Title of host publication2008 3rd International Symposium on Communications, Control, and Signal Processing, ISCCSP2008
Pages689-696
Number of pages8
DOIs
Publication statusPublished - 2008
Event2008 3rd International Symposium on Communications, Control, and Signal Processing, ISCCSP2008 - St. Julians, Malta
Duration: Mar 12 2008Mar 14 2008

Publication series

Name2008 3rd International Symposium on Communications, Control, and Signal Processing, ISCCSP 2008

Other

Other2008 3rd International Symposium on Communications, Control, and Signal Processing, ISCCSP2008
Country/TerritoryMalta
CitySt. Julians
Period3/12/083/14/08

Keywords

  • Diesel engine fault diagnosis
  • Fault dectection and isolation
  • Gain schedule control
  • H-infinity optimization
  • Nonlinear complete engine model

ASJC Scopus subject areas

  • Computational Theory and Mathematics
  • Signal Processing
  • Control and Systems Engineering

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