Title:
燃料噴射装置の制御装置
Document Type and Number:
Japanese Patent JP6581420
Kind Code:
B2
Abstract:
A set spring force is estimated with high precision and a drive waveform is corrected according to the results. A control device of a fuel injection device consists of an incorporation means of reading a drive voltage of a solenoid, an inflexion point extraction filter for filtering the drive voltage to highlight inflexion points, a means of selecting a later inflexion point or a means of calculating a temporal difference between a later inflexion point and an earlier inflexion point of the extracted inflexion points, and a drive current correction means of correcting a drive current parameter on the basis of timing of the selected, later inflexion point or a temporal difference between the inflexion points.
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Inventors:
Toshihiro Aono
Masahiro Toyohara
Osamu Mukaihara
Masahiro Toyohara
Osamu Mukaihara
Application Number:
JP2015151456A
Publication Date:
September 25, 2019
Filing Date:
July 31, 2015
Export Citation:
Assignee:
Hitachi Automotive Systems, Ltd.
International Classes:
F02D41/20; F02M51/00; F02M51/06; F16K31/06
Domestic Patent References:
| JP49045251B1 | ||||
| JP2015096720A | ||||
| JP2014234922A |
Foreign References:
| WO2015045508A1 | ||||
| WO2015015541A1 | ||||
| WO2014174916A1 | ||||
| US20130073188 | ||||
| US20120185147 |
Attorney, Agent or Firm:
Yuji Toda