Patent ID: 8393313
Filing Date: 2013-03-12
Classification: F02D,F02M,Y02T

Abstract:
1. A control apparatus for an internal combustion engine, comprising: a fuel tank in which fuel is stored; a vaporized fuel tank that is connected to a midway of an intake passage of the internal combustion engine and in which vaporized fuel that is the fuel that has been vaporized is stored; an in-tank fuel supplying device that supplies fuel in the fuel tank to the vaporized fuel tank; a normally-closed vaporized fuel supply valve that opens and closes a connecting portion between the vaporized fuel tank and the intake passage; a vaporized fuel producing apparatus that produces vaporized fuel in the vaporized fuel tank by driving the in-tank fuel supplying device while the vaporized fuel supply valve is closed, while the internal combustion engine is operating; a vaporized fuel supplying device that supplies vaporized fuel stored in the vaporized fuel tank to the intake passage by opening the vaporized fuel supply valve at startup of the internal combustion engine; a determining apparatus that determines whether an amount of vaporized fuel in the vaporized fuel tank becomes insufficient at next startup in a case where an engine stop command has been issued while the internal combustion engine is operating; a vacuum generating apparatus that generates a vacuum in the vaporized fuel tank by temporarily opening the vaporized fuel supply valve before the engine stops, in a case where it is determined by the determining apparatus that the vaporized fuel becomes insufficient; and a production controlling apparatus that executes the vaporized fuel producing apparatus after the vacuum generating apparatus has been executed.