公开(公告)号：US10718290B2

公开(公告)日：2020-07-21

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 ,  F02M51/06 ,  F02D41/34 ,  F01N3/36 ,  F02M61/10 ,  F02D41/24 ,  F02D41/14 ,  F02D41/02 ,  F01N3/10

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.