Closed-loop individual cylinder air–fuel ratio control via UEGO signal spectral analysis

The paper presents the development and real time application of an original closed-loop individual cylinder AFR control system, based on a spectral analysis of the lambda sensor signal. The observation that any type of AFR disparity between the various cylinders is reflected in a specific harmonic c...

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Bibliographic Details
Published in:	Control engineering practice Vol. 18; no. 11; pp. 1295 - 1306
Main Authors:	Cavina, Nicolò, Corti, Enrico, Moro, Davide
Format:	Journal Article Conference Proceeding
Language:	English
Published:	Kidlington Elsevier Ltd 01-11-2010 Elsevier
Subjects:	Applied sciences Automotive systems Control systems Cylinders Energy Energy. Thermal use of fuels Engines Engines and turbines Equipments for energy generation and conversion: thermal, electrical, mechanical energy, etc Exact sciences and technology Frequency domain Fuel injection control Inequalities Internal combustion engines Internal combustion engines: gazoline engine, diesel engines, etc Mechanical engineering. Machine design Real time Signal-processing algorithms Spark ignition Spectra Spectral analysis Stability Frequency domain Fuel injection control Automotive systems Signal-processing algorithms Internal combustion engines Spectral analysis Harmonic Motor car Motor fuel injection Control system analysis Measurement sensor Air fuel ratio Frequency domain method Real time Real time system Operating conditions Closed feedback Signal spectrum Signal processing Internal combustion engine Fuel mixture Fuel injection Signal analysis
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