Patent ID: 7275519

Claim:
A control apparatus for an internal combustion engine having first fuel injection means for injecting fuel into a combustion chamber and second fuel injection means for injecting fuel into an intake manifold for a cylinder, comprising: fuel injection control means for controlling fuel injection from said first and second fuel injection means; and pre-ignition detecting means for detecting a risk of pre-ignition during a first-time compression stroke of the cylinder, at the time of startup of said internal combustion engine, based on a stopped position of a piston at the time of previous stop of said internal combustion engine; wherein said fuel injection control means includes startup-time control means for causing one of said first and second fuel injection means to inject fuel of a quantity required for operation of said internal combustion engine at the time of startup of said internal combustion engine, and pre-ignition preventing means for causing the other one of said first and second fuel injection means to inject fuel of a prescribed quantity that is set to make an air-fuel ratio within said combustion chamber become out of a range enabling combustion when said pre-ignition detecting means detects a high risk of said pre-ignition.