INTERNAL COMBUSTION ENGINE CONTROL DEVICE AND CONTROL METHOD

An internal combustion engine (1) includes an in-cylinder injection fuel injection valve (8) and a port injection fuel injection valve (9). Injection amount ratios of the valves are controlled in accordance with a driving condition of the engine. At a recovery after a fuel cut, the fuel amount ratio of the in-cylinder injection is corrected to be decreased during a predetermined period which is determined from a fuel cut time period or a combustion chamber wall temperature at the recovery. An increase of particulate matter is suppressed by decreasing the injection amount ratio of the in-cylinder injection at the recovery at which the combustion chamber wall temperature is decreased.