Method for estimating the pressure prevailing in an intake manifold of an internal combustion engine and method of controlling an internal combustion engine

摘要

A method for estimating the pressure prevailing in an intake manifold of an internal combustion engine and a method of controlling an internal combustion engine in which the pressure of the intake manifold is estimated by measuring the pressure in a combustion chamber of the internal combustion engine as a function of the angular position of the engine crankshaft. The combustion chamber pressure is measured at positions of the crankshaft other than the angle IVC corresponding to the intake valve closure point.