Patent ID: 6622703
Filing Date: 2003-09-23
Classification: F02D

Abstract:
A fuel injection control device for an internal combustion engine, comprising:angle detection means for detecting one angle reference position of at least the suction stroke or earlier strokes of two cylinders whose strokes shift from each other by 360 degrees of crank angle in a four-cycle multi-cylinder engine; operating condition detection means for detecting the operating conditions of the engine; and fuel injection control means for determining the appropriate fuel injection quantity for each cylinder of the engine based on engine revolution information derived from the detected cycle of angle reference position detection signals obtained by said angle detection means and on operating condition detection signals obtained by said operating condition detection means, wherein Â½ of the fuel injection quantity determined based on the engine revolution information derived from the detected cycle of the angle reference position detection signals of one of said two cylinders and on said operating condition detection signals is injected simultaneously into said two cylinders, and Â½ of the fuel injection quantity determined based on the engine revolution information derived from the detected cycle of the angle reference position detection signals of the other of said two cylinders and on said operating condition detection signals is injected simultaneously into said two cylinders.