The present work has been focused on the development of low-throughput semi-empirical models to predict the peak firing pressure, indicated mean effective pressure and brake mean effective pressure in direct injection diesel engines. The models have been calibrated and assessed on a 1.6L GM Euro 6 diesel engine, on the basis of the results of experimental tests conducted at a dynamic test bench at GMPT-E (General Motors Powertrain-Europe). Model validation was carried out over ‘‘New European Driving Cycle” and ‘‘Worldwide Harmonized Light vehicle Test Procedure” missions. The performance of the semi-empirical models has been compared, in terms of prediction accuracy, robustness, inversion efficiency and computational expense, with that of a previously developed real-time physical combustion model. The thus developed semi-empirical models are characterized by a very low computational effort, and are therefore suitable for the development of innovative feed-forward control algorithms in the Engine Control Unit.
|Titolo:||Fast estimation of combustion metrics in DI diesel engines for control-oriented applications|
|Data di pubblicazione:||2016|
|Digital Object Identifier (DOI):||10.1016/j.enconman.2016.01.018|
|Appare nelle tipologie:||1.1 Articolo in rivista|
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