APPARATUS FOR ESTIMATING EXHAUST GAS TEMPERATURE OF INTERNAL COMBUSTION ENGINE

摘要

An apparatus for estimating a temperature of an exhaust gas which is exhausted from an internal combustion engine to an exhaust manifold. The apparatus estimates the temperature of the exhaust gas in the exhaust manifold, based on a temperature increment caused by an adiabatic compression until a gas introduced in an intake manifold is exhausted to the exhaust manifold, and a temperature increment obtained by dividing the amount of heat lost in the exhaust gas among the amount of heat introduced into cylinders by the diluted gas flow of the exhaust gas in the exhaust manifold.

主权项

1. An apparatus for estimating an exhaust gas temperature in an exhaust manifold of an internal combustion engine, the apparatus comprising:
an estimating unit that estimates the exhaust gas temperature, based on a temperature increment caused by an adiabatic compression until a gas introduced into an intake manifold of the internal combustion engine is exhausted to the exhaust manifold, and a temperature increment caused by an amount of heat obtained by dividing an amount of heat lost in an exhaust gas among an amount of heat introduced into cylinders of the internal combustion engine by a diluted gas flow of the exhaust gas in the exhaust manifold.