Patent ID: 6463906
Filing Date: 2002-10-15
Classification: F02B,F02D,F02M,Y02T

Abstract:
A fuel injection control system for an internal combustion engine of an in-cylinder fuel injection type which is operated while switching between a stratified combustion mode in which fuel injection into each cylinder is performed during a compression stroke and a homogenous combustion mode in which said fuel injection into said cylinder is performed during an intake stroke, the fuel injection control system controlling timing of the fuel injection,the fuel injection control system comprising: operating condition-detecting means for detecting operating conditions of said engine; required fuel amount-determining means for determining a required fuel amount based on the detected operating conditions of said engine; parameter-calculating means for calculating parameters indicative of behaviors of said fuel based on the detected operating conditions of said engine; fuel injection amount-determining means for determining a final fuel injection amount by correcting said required fuel amount by using the calculated parameters; engine rotational speed-detecting means for detecting an engine rotational speed of said engine; and fuel injection timing-determining means for determining said fuel injection timing based on the detected engine rotational speed and the determined final fuel injection amount.