Fuel injection control device for internal combustion engine

摘要

To provide a fuel injection control device for an internal combustion engine which can suppress body vibrations, shocks, etc. and can control the fuel injection quantities during transitional periods easily and effectively in a simple manner. The fuel injection control device includes a crank angle sensor for detecting one angle reference position of at least the suction stroke or earlier strokes or two cylinders whose strokes shift from each other by 360 degrees of crank angle in a four-cycle multi-cylinder engine; various sensors for detecting the operating conditions of the engine; and a control section 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 and on operating condition detection signals, in which ½ 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 each of the two cylinders and on the operating condition detection signals is injected simultaneously into the two cylinders.