Patent ID: 7950369

Claim:
A control apparatus for a spark-ignition-type internal combustion engine comprising: determination means for determining whether or not the internal combustion engine is in a predetermined low-temperature startup state; HC reduction means, operable when the internal combustion engine is determined to be in the predetermined low-temperature startup state, for performing an HC reduction control which raises a temperature within a combustion chamber of the internal combustion engine through adjustment of a predetermined engine control parameter, to thereby reduce the emission amount of unburnt HC; permissible value acquisition means for acquiring a PM-emission-amount corresponding permissible value, which is a permissible value for a value corresponding to the emission amount of PM; and restriction means for performing a restriction control which restricts execution of the HC reduction control on the basis of the PM-emission-amount corresponding permissible value, wherein the HC reduction means performs, as the HC reduction control, an over-advanced ignition control of setting an ignition timing to a timing advanced from an MBT, which is an ignition timing at which the maximum torque can be obtained.