Real-time performance prediction method and real-time performance prediction program for combustion engines

摘要

PROBLEM TO BE SOLVED: To provide a real-time performance prediction method and a real-time performance prediction program of a combustion engine which are sufficiently high in accuracy to be used for control, have a short calculation time, and can be used in real time. Based on the initial conditions, the scavenging state is predicted by a cycle average value (CMV) model that models the scavenging system and the exhaust system of the combustion engine 14, and the combustion behavior of the cylinder 20 of the combustion engine 14 is modeled. The parameters related to the performance of the combustion engine 14 are predicted and derived in real time by integrating with the prediction of the combustion state by the phenomenon model. [Selection diagram] Fig. 2