MFB50 on-board estimation methodology for combustion control

Due to the increasing request for pollutant emissions reduction, modern closed-loop combustion control strategies require the on-board evaluation of the center of combustion (MFB50), i.e. the angular position where 50% of the injected fuel mass is burned. This work presents an MFB50 estimation algor...

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Bibliographic Details
Published in:	Control engineering practice Vol. 21; no. 12; pp. 1821 - 1829
Main Authors:	Ponti, Fabrizio, Ravaglioli, Vittorio, Moro, Davide, Serra, Gabriele
Format:	Journal Article
Language:	English
Published:	Elsevier Ltd 01-12-2013
Subjects:	Center of combustion Combustion control Indicated torque MFB50 Torsional model Combustion control MFB50 Center of combustion Indicated torque Torsional model
Online Access:	Get full text
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Summary:	Due to the increasing request for pollutant emissions reduction, modern closed-loop combustion control strategies require the on-board evaluation of the center of combustion (MFB50), i.e. the angular position where 50% of the injected fuel mass is burned. This work presents an MFB50 estimation algorithm based on engine speed measurement, that can be performed using the same toothed wheel already present on-board. Therefore, this approach is compatible with on-board application and requires no additional hardware cost. The complete methodology has been applied to a Diesel engine mounted on-board a vehicle and the accuracy of the obtained results is compatible with on-board requirements.
Bibliography:	ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23
ISSN:	0967-0661 1873-6939
DOI:	10.1016/j.conengprac.2013.05.001