On-Board-Kalibrierung eines Ottomotors anhand von Verbrennungsmodellen und Ionenstromrückführung (Towards On-Board Engine Calibration with Feedback Control Incorporating Combustion Models and Ion-sense)
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Media type:
E-Article
Title:
On-Board-Kalibrierung eines Ottomotors anhand von Verbrennungsmodellen und Ionenstromrückführung (Towards On-Board Engine Calibration with Feedback Control Incorporating Combustion Models and Ion-sense)
Contributor:
Eriksson, Lars;
Nielsen, Lars
Published:
Walter de Gruyter GmbH, 2003
Published in:
at - Automatisierungstechnik, 51 (2003) 5, Seite 204-212
Language:
English
DOI:
10.1524/auto.51.5.204.19574
ISSN:
2196-677X;
0178-2312
Origination:
Footnote:
Description:
Abstract Ion-sense is a technique to probe the in-cylinder combustion by applying, after ignition, a sense voltage across the spark plug gap and measure the current through the gap. This current measurement is a complicated function that contains a lot of information about the in-cylinder pressure, temperature and combustion. To extract this information, a major contribution here is a simple analytical ionization current model that consists of explicit analytical submodels for in-cylinder pressure, temperature, thermal ionization, and ionization current. Since the model is analytical, the on-board signal interpretation is a simple adaptation of some model parameters. Experimental validation shows good agreement, and thus paves the way towards real-time on-board engine calibration.