Title:
CONTROL DEVICE OF FUEL INJECTION VALVE
Document Type and Number:
Japanese Patent JP2016211453
Kind Code:
A
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 of the fuel injection valve to 0 or more in a prescribed valve opening command period (injection start command time to injection stop command time), and seating determination means for determining the presence or absence of seating of a valve element of the fuel injection valve on the basis of waveforms of counter electromotive voltage generated after stop of energization to the electromagnetic actuator by the driving current control means. The driving current control means raises the driving current from hold current determined to keep an opening state of the valve element, just before termination of the valve opening command period.SELECTED DRAWING: Figure 7
Inventors:
KURAUCHI JUNJI
YAMANAKA TATSUO
YAMANAKA TATSUO
Application Number:
JP2015096493A
Publication Date:
December 15, 2016
Filing Date:
May 11, 2015
Export Citation:
Assignee:
HONDA MOTOR CO LTD
International Classes:
F02D41/20; F02M51/00; F02M61/10; F02M65/00; F16K31/06
Domestic Patent References:
| JP2012052419A | 2012-03-15 | |||
| JP2014055571A | 2014-03-27 | |||
| JP2014214837A | 2014-11-17 | |||
| JPH10227250A | 1998-08-25 |
Attorney, Agent or Firm:
Masayuki Masabayashi
Hayashi Ichiyoshi
Hiroaki Hoshino
Hayashi Ichiyoshi
Hiroaki Hoshino
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