Nonlinear Analysis of Combustion Engine Vibroacoustic Signals for Misfire Detection 2003-01-0354
To stop the rapid automobile-related deterioration of the environment, a number of rigorous regulations and requirements have been introduced (e.g. on-board diagnostic system OBDII/EOBD). One of the most important functions of the OBDII system is a misfire detection. The misfire detection capacity is essential not only because it helps to control exhausts emissions, but also because it aids in preventing damage to the catalytic converter. The years to come will see increasingly stringent norms in general, in particular the locomotive diesel engines area also. This paper presents results of research on nonlinear analysis of vibro-acoustic signals obtained from a combustion engine (locomotive diesel engine and automobile engines) which pertain to misfire detection. The results of the analysis demonstrate the dominant Lyapunov exponents in the case with all the cylinders are in operation to be differing considerably from the condition with one cylinder disconnected.
Piotr Boguś, Jerzy Merkisz, Rafał Grzeszczyk, Stanisław Mazurek
The TABOR Rail Vehicles Institute, Poznań, Poland & Medical University of Gdańsk, Poland, Poznań University of Technology, Poland, Automex S.A., Gdańsk, Poland, Gdańsk University of Technology, Poland & Automex S.A., Gdańsk, Poland
SAE 2003 World Congress & Exhibition
Electronic Engine Control Technologies, 2nd Edition-PT-110, Electronic Engine Controls 2003-SP-1749