Flame temperature estimator and method for estimating a flame temperature and nitrogen oxide (NOx) estimation system

摘要

A flame temperature estimator comprising: an adiabatic flame temperature module that estimates an adiabatic flame temperature based on a combustion chamber pressure and a bulk temperature; a temperature reduction module that estimates a temperature reduction for the adiabatic flame temperature based on an air / fuel ratio of an engine; and a combustion temperature trend module that generates a combustion temperature trend based on the temperature reduction and the adiabatic flame temperature.