CONTROL APPARATUS FOR INTERNAL COMBUSTION ENGINE

摘要

PROBLEM TO BE SOLVED: To provide a control apparatus for an internal combustion engine, capable of activating a catalyst of the internal combustion engine at an early stage when the internal combustion engine is started in a cold condition.SOLUTION: The control apparatus for the internal combustion engine includes: a first fuel injection valve 17 for injecting fuel to combustion chambers 6 of an internal combustion engine 1 having a plurality of cylinders; a second fuel injection valve 18 for injecting the fuel to intake routes Ri; an ignition plug 29 for igniting the fuel; a catalyst 15 for purifying exhaust air in an exhaust route Re; and catalyst temperature rise control means A3 for raising the temperature of the catalyst 15 by lag controlling ignition time of the ignition plug. The catalyst temperature rise control means A3 has a temperature rise mode M2 for setting an injection period of the first fuel injection valve at a compression step, and setting an injection period of the second fuel injection valve at an intake step of a part of the cylinders and setting at an exhaust step of the other cylinders.