Title:
燃料噴射装置の制御装置
Document Type and Number:
Japanese Patent JP7177486
Kind Code:
B2
Abstract:
Provided is a control device for a fuel injection device capable of detecting a variation in valve opening start timing of the fuel injection device and stabilizing a fuel injection quantity. Therefore, the control device for the fuel injection device of the present invention is a control device for a plurality of fuel injection devices each including: a valve body that opens a fuel passage by separating from a valve seat; a movable element that causes an opening/closing operation of the valve body; and a stator that attracts the movable element by a drive current flowing through a coil. This control device includes a control unit that controls the energization time of the drive current by a pulse width of a drive command pulse. The control unit estimates a valve opening start timing having a correlation with a detected valve closing completion timing. Further, the pulse width of the drive command pulse is corrected based on the valve opening start timing.
Inventors:
Akiyasu Miyamoto
Takeo Miyake
Taisuke Sugii
Takeo Miyake
Taisuke Sugii
Application Number:
JP2019056046A
Publication Date:
November 24, 2022
Filing Date:
March 25, 2019
Export Citation:
Assignee:
Hitachi Astemo, Ltd.
International Classes:
F02D41/04; F02D41/20; F02D41/34; F02M51/06
Domestic Patent References:
| JP2018035728A | ||||
| JP2015224621A | ||||
| JP2017031889A | ||||
| JP2015169079A |
Foreign References:
| WO2015015541A1 |
Attorney, Agent or Firm:
Patent Attorney Corporation Shinyu International Patent Office