PURPOSE: To correct an adequate fuel injection amount regardless of the variation of the fuel injection timing by dividing the learning area into plural areas responding to the fuel injection timings, and correcting the fuel injection amount from a responding fuel injection valve with the learning value learned in the learning area.
CONSTITUTION: In a two-cycle engine furnishing a fuel injection valve 9 to feed a pressured fuel from a fuel feeding system to each cylinder respectively, a suction passage 2 furnishing a scavenging pump 10 to feed a fresh air to each cylinder, and an exhaust passage 11 furnishing a ternary catalyst for purifying exhaust gas, the fuel injection valve 9 is controlled by a control circuit 6 depending on various parameters to indicate the engine operation condition. And in the control circuit 6, plural divided learning areas are set responding to the fuel injection timings of the fuel injection valve 9, and the learning values learned in the plural learning areas respectively are used, and thereby the fuel injection amount is corrected in the operation condition responding to each learning area.
NOMURA KENICHI
TAMURA KOICHI
