This control device for an internal combustion engine includes: an upstream catalyst (20); a downstream catalyst (24) that is provided further downstream than the upstream catalyst in the exhaust flow direction; a downstream air-fuel ratio detection means ...

The first target A/ F directing toward a richer side from the initial target A/F to the theoretical A/F is calculated; and the first estimated catalyst's oxygen amount is calculated based on the detected A/F and the theoretical A/F. Until the first estimat...

An object of the present invention is to provide an internal combustion engine control device that, when an abnormal combustion is detected, is capable of not only exercising control to suppress the occurrence of the abnormal combustion, but also exercisin...

A control apparatus for an internal combustion engine (10) in the present invention includes: a turbo-supercharger (24) that supercharges intake air; a port injection valve (38) and an in-cylinder injection valve (40) that inject fuel into the internal com...

A catalyst system (200) may include a catalyst (220) and a first sensor (251) that detects contents of gases entering the catalyst and reports the contents of the gases entering the catalyst to an emissions control module (230). A second sensor (271) and a...

In an internal combustion engine (1) provided with a blower (3) that blows air; a combustion chamber (4) that generates a driving force by combusting the air blown by the blower (3) and fuel and that also exhausts exhaust gas; a supercharger (2) that is dr...

There is provided an exhaust purifying device for an internal combustion engine in which NOx can be appropriately purified in a selective catalytic reduction and occurrence of an ammonia slip due to a temperature rise of the selective catalytic reduction c...

To restrict the discharging of harmful components immediately after the starting of an internal combustion engine (1), an exhaust gas collecting apparatus (10) of an internal combustion engine comprises: a collection vessel (11) that can hold exhaust gas; ...