Development of Phenomenological Model with Model Based Calibration Method

-Prediction of NOx and Smoke Formation Characteristics by Using Zero-Dimensional Two-Zone Spray and Combustion Model-

Abstract

The enhancement of engine control technology contributed to higher thermal efficiency and lower emissions of diesel engines. This, however, caused increasing the number of control parameters, which resulted in the extension of engine calibration periods. To make the calibration process more efficient, Model Based Calibration (MBC) method has been attracted attention in recent years. The objective of this study is the construction of the new scheme of modeling engine performance with MBC method. In this paper, the zero-dimensional two-zone spray and combustion model was constructed, and the model accuracy was evaluated by comparison with conventional empirical models.