Patent ID: 8688354

Claim:
A fuel injection control apparatus comprising: a temperature acquisition portion that acquires a temperature of a catalyst provided in an exhaust system of an internal combustion engine, and that acquires a convergence temperature of the catalyst; an increase value calculation portion that calculates a first increase value that is an increase value of a fuel injection amount that a fuel injection valve provided in the internal combustion engine needs to inject in order to cool the catalyst, based on the temperature of the catalyst and the convergence temperature of the catalyst acquired by the temperature acquisition portion; a correction portion that calculates a second increase value by correcting the first increase value based on the temperature of the catalyst and the convergence temperature of the catalyst, if the temperature of the catalyst is lower than the convergence temperature; and an increase value determination portion that selects one of the first increase value and the second increase value as the increase value for the fuel injection amount that the fuel injection valve needs to inject, based on the temperature of the catalyst, the convergence temperature of the catalyst, the first increase value and the second increase value.