Patent ID: 9334825
Filing Date: 2016-05-10
CPC Classification: F02D,F02M

Claim Text:
1. A fuel supply apparatus for an internal combustion engine including a plurality of fuel injection valves for a same cylinder, the apparatus comprising: a drive circuit that is commonly provided with respect to the plurality of fuel injection valves for a same cylinder, and drives the plurality of fuel injection valves for a same cylinder on a basis of a command from outside; an electric conduction line that electric current supplied to the plurality of fuel injection valves flows through, the electric conduction line including a common section one end of which is connected to the drive circuit, the electric conduction line including branch sections which are sections following another end of the common section that the electric conduction line branches off at and on which the plurality of fuel injection valves for a same cylinder are respectively installed; an electric current detection unit for detecting electric current which flows through the common section of the electric conduction line; an electric resistance which is inserted in the branch section of the electric conduction line with respect to each of one or more installation target fuel injection valves, each value of the electric resistances being different from each other if the installation target fuel injection valves are more than one, wherein the installation target fuel injection valves correspond to all or all-minus-one of the plurality of fuel injection valves for a same cylinder; and an abnormal fuel injection valve detection unit for detecting a fuel injection valve, at which an occurrence of abnormality concerning electric conduction is recognized, out of the plurality of fuel injection valves for a same cylinder, on a basis of a magnitude of an electric current value detected by the electric current detection unit.