DocumentCode :
1706741
Title :
A nonlinear approach with Gain Schedule Control adaptation for a complete-model Diesel-engine diagnosis
Author :
Nohra, Chady ; Noura, Hassan ; Moucary, Chady El ; Younes, Rafic
Author_Institution :
Lab. des Sci. de I´´lnformation et des Syst., Paul Cezanne Univ., Marseille
fYear :
2008
Firstpage :
689
Lastpage :
696
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.
Keywords :
Hinfin control; diesel engines; fault diagnosis; nonlinear control systems; Takagi-Sugeno model; complete-model diesel-engine diagnosis; fault detection and isolation algorithm; gain schedule control adaptation; innovative fault-diagnosis system; nonlinear engine model; Actuators; Control systems; Diesel engines; Fault detection; Fault diagnosis; Geometry; Scheduling algorithm; Takagi-Sugeno model; Turbines; Valves; Diesel Engine Fault Diagnosis; Fault Dectection and Isolation; Gain Schedule Control; H-Infinity Optimization; Nonlinear Complete Engine Model;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Communications, Control and Signal Processing, 2008. ISCCSP 2008. 3rd International Symposium on
Conference_Location :
St Julians
Print_ISBN :
978-1-4244-1687-5
Electronic_ISBN :
978-1-4244-1688-2
Type :
conf
DOI :
10.1109/ISCCSP.2008.4537312
Filename :
4537312
Link To Document :
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