G0710102 Prediction model of pressure rise rate and cyclic variation for HCCI engine

Abstract

With the aim of designing a homogeneous charge compression ignition (HCCI) engine and also considering the range of prediction model, it is necessary to avoid the operation in lower combustion efficiency and generating noise. In this study, prediction models of the rate of pressure rise and cyclic variation were considered. As a result, it was clarified that rate of pressure rise is predicted by amount of injected fuel, ignition timing and combustion duration. It was also clarified that there is the good correlation between the rate of pressure rise and cyclic variation, and the proposed prediction model of pressure rise rate is also useful to predict the cyclic variation.