Title:
検知装置
Document Type and Number:
Japanese Patent JP7247135
Kind Code:
B2
Abstract:
This detector includes: a filtering unit performing a first filtering process of performing a filtering process on a first waveform or a second filtering process of performing a filtering process on a second waveform; a detection unit detecting a timing of a first peak value corresponding to a predetermined peak value of a third waveform; a correction unit which corrects a deviation of a detection value corresponding to a timing detected by the detection unit with respect to a timing when the fuel injection valve is actually opened or closed based on a difference between the first peak value of the third waveform and a second peak value of the third waveform appearing after the first peak value; and a detecting unit which detects one or both of the opening and closing of the fuel injection valve based on the detection value corrected by the correction unit.
Inventors:
Kyohei Matsumoto
Kawakami earth
Kawakami earth
Application Number:
JP2020047237A
Publication Date:
March 28, 2023
Filing Date:
March 18, 2020
Export Citation:
Assignee:
Hitachi Astemo, Ltd.
International Classes:
F02D41/20; F02M51/06
Domestic Patent References:
| JP6157681B1 | ||||
| JP2007205312A | ||||
| JP2009167894A | ||||
| JP11148410A | ||||
| JP2016070156A | ||||
| JP2017124688A | ||||
| JP2019029737A | ||||
| JP2019210933A | ||||
| JP2018044473A | ||||
| JP2016180345A | ||||
| JP2019074095A |
Foreign References:
| WO2016091848A1 | ||||
| US20190360424 |
Attorney, Agent or Firm:
Shu Oikawa
Yuichiro Shimizu
Hisanori Takahashi
Yuichiro Shimizu
Hisanori Takahashi