| 摘要 |
PROBLEM TO BE SOLVED: To provide a fuel injection control method for an internal combustion engine for restraining the occurrence of torque fluctuation, degradation of emission, or the like. SOLUTION: The internal combustion engine carries out direct injection operation of injecting fuel into a cylinder from an injector 33 for cylinder injection, and port injection operation of injecting fuel toward an intake port from an injector 31 for intake port injection. When there is a changeover request from the fuel injection from the injector 33 for cylinder injection over to fuel injection from the injector 31 for intake port injection, a fuel injection form which can be set to a specific cylinder is set according to the timing of the changeover request to the specific cylinder. A shift to the ideal injection form is thus performed in a shortest time to obtain a required air-fuel mixture. The occurrence of torque fluctuation and degradation of emission can thereby be restrained. COPYRIGHT: (C)2005,JPO&NCIPI
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