| 摘要 |
PROBLEM TO BE SOLVED: To provide a control device of a direct injection engine capable of controlling an air-fuel ratio with high accuracy even when a fuel blow-back amount changes in every cycle in a transient state in which a load, a rotating speed and the like change, in the control device of the direct injection engine in which a valve closing timing of an intake valve can be set to a retard side with respect to an intake bottom dead center of a piston.SOLUTION: An ECU 50 constituting a control device of a direct injection engine, includes a blow-back amount acquiring portion 51 determining a blow-back amount of a fuel blown back to an intake port 22 from the inside of a cylinder on the basis of a fuel injection timing of an injector 12, a valve timing of an intake valve 24, and an intake manifold pressure, and a blow-back correcting portion 52 for correcting an amount of fuel injected from the injector 12 by subtracting the blow-back amount of the fuel blown back in the last cycle, and adding a blow-back amount of the fuel blown back in the present cycle. |
