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.
MFB50 on-board estimation methodology for combustion control / Fabrizio Ponti;Vittorio Ravaglioli;Davide Moro;Gabriele Serra. - In: CONTROL ENGINEERING PRACTICE. - ISSN 0967-0661. - STAMPA. - 21:12(2013), pp. 1821-1829. [10.1016/j.conengprac.2013.05.001]
MFB50 on-board estimation methodology for combustion control
PONTI, FABRIZIO;RAVAGLIOLI, VITTORIO;MORO, DAVIDE;
2013
Abstract
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.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
