Title:
燃料噴射弁の制御装置
Document Type and Number:
Japanese Patent JP6521725
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a control device of a fuel injection valve capable of accurately determining the presence or absence of seating of a valve element disposed in the fuel injection valve.SOLUTION: A control device of a fuel injection valve includes driving current control means for controlling driving current of an electromagnetic actuator, sampling means for acquiring values of monitoring voltage generated as counter electromotive voltage by the electromagnetic actuator several times after stop of energization to the electromagnetic actuator by the driving current control means, interpolation line generation means for generating an interpolation line passing an estimated seating period by using the plurality of sampling values of the monitoring voltage belonging to a period excluding the prescribed estimated seating period, and seating determination means for determining the presence or absence of seating of a valve element on the basis of comparison of the plurality of sampling values belonging to the estimated seating period and the interpolation line.SELECTED DRAWING: Figure 8
Inventors:
Atsushi Kurauchi
Yamanaka Tatsuo
Inoue Masato
Yamanaka Tatsuo
Inoue Masato
Application Number:
JP2015096479A
Publication Date:
May 29, 2019
Filing Date:
May 11, 2015
Export Citation:
Assignee:
Honda motor industry stock company
International Classes:
F02M65/00; F02D41/20; F02M51/00; F02M51/06; F16K31/06
Domestic Patent References:
| JP2014234922A | ||||
| JP2014055571A | ||||
| JP2014231863A | ||||
| JP2014031790A |
Foreign References:
| WO2012104918A1 |
Attorney, Agent or Firm:
Masayuki Masabayashi
Hayashi Ichiyoshi
Hiroaki Hoshino
Hayashi Ichiyoshi
Hiroaki Hoshino