Patent ID: 8746211

Claim:
A control apparatus for an internal combustion engine that injects fuel that includes alcohol into an intake port of each cylinder from an injector provided for each cylinder, comprising: an engine starting portion that starts the internal combustion engine by initiating combustion in cylinders belonging to a first cylinder group; an intake pipe pressure monitoring portion that monitors a change in an amount of negative pressure generated in an intake pipe with the starting of the internal combustion engine; an alcohol concentration information obtaining portion that obtains information related to an alcohol concentration of the fuel being used in the internal combustion engine; a necessary fuel injection quantity calculating portion that calculates a fuel injection quantity necessary to initiate combustion in cylinders belonging to a second cylinder group that are different from the cylinders that make up the first cylinder group, based on the amount of negative pressure generated in the intake pipe and the alcohol concentration of the fuel; and a second cylinder group combustion initiating portion that initiates combustion in each of the cylinders belonging to the second cylinder group after the fuel injection quantity necessary to initiate combustion enters a range of quantities that are able to be injected by the corresponding injectors; wherein when the fuel injection quantity necessary to initiate combustion in one or more of the cylinders belonging to the first cylinder group exceeds the range of quantities that are able to be injected by the corresponding one or more injectors, the engine starting portion injects fuel of a quantity corresponding to the excess from one or more of the injectors belonging to the second cylinder group.