Patent ID: 9422882
Filing Date: 2016-08-23
CPC Classification: F02D,Y02T

Claim Text:
1. A control apparatus for an internal combustion engine comprising: a catalyst that is arranged in an exhaust passage of the internal combustion engine in which a plurality of kinds of fuels are able to be used, and serves to adsorb and remove hydrocarbons and NOx which are exhaust gas components discharged from said internal combustion engine; and a control part that changes a fuel to be used from a first fuel to a second fuel, which contains a small content of non-methane hydrocarbons and has methane as its main component, thereby to operate said internal combustion engine until said internal combustion engine is stopped, in cases where among said plurality of kinds of fuels, said first fuel is used which has a large content of non-methane hydrocarbons, which adsorb to said catalyst of which the temperature has become low more preferentially than NOx, at the time when a request is made for stopping said internal combustion engine, wherein said control part controls operation of said internal combustion engine by the use of said second fuel at least until the exhaust gas which has been discharged from said internal combustion engine operated by the use of said second fuel arrives at said catalyst, and before said internal combustion engine is stopped.