CONTROL UNIT AND CONTROL METHOD FOR INTERNAL COMBUSTION ENGINE

摘要

This invention provides a control unit for an internal combustion engine, comprising a PM collector (30) for collecting fine particles (PM) in an exhaust gas within an exhaust passage (15), ozone supply means (40, 41, 42) for supplying ozone from the upstream side of a PM collector (30) to the PM collector (30) to oxidize and remove PM deposited in the PM collector (30), and fuel injection stop means (100) for stopping the fuel injection in an internal combustion engine (10) at the time when ozone is supplied by the ozone supply means. The above constitution can avoid the incorporation of an ozone consuming component such as NOx in the exhaust gas in the internal combustion engine upon the supply of ozone and can realize the use of ozone with high efficiency.