公开(公告)号：US20180209373A1

公开(公告)日：2018-07-26

申请号：US15745465

申请日：2016-06-14

Applicant: DENSO CORPORATION

Inventor： Naoki YOSHIUME ,  Makoto TANAKA ,  Keisuke YANOTO ,  Kosuke NAKANO

IPC: F02D41/40 ,  F02D41/20 ,  F02D41/14 ,  F02D41/02

Abstract: A control device for controlling a fuel injection in an internal combustion engine provided with a fuel injection valve has a driving portion supplying an electric power to a terminal of the fuel injection valve so as to drive the fuel injection valve to be opened; a current detecting portion detecting a drive current flowing through the fuel injection valve when the fuel injection valve is driven to be opened; a voltage detecting portion detecting a terminal voltage of the terminal of the fuel injection valve; a correction portion correcting the electric power supplied by the driving portion so that an actual value of the drive current detected by the current detecting portion agrees with a target value; a valve close detecting portion detecting a valve closing timing of the fuel injection valve based on the terminal voltage detected by the voltage detecting portion in a condition where the electric power supplied by the driving portion is corrected by the correction portion.