Title:
FUEL INJECTION CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE
Document Type and Number:
WIPO Patent Application WO/2016/170738
Kind Code:
A1
Abstract:
An ECU (30) as a fuel injection control device comprises: an injector control unit (31) that drives and opens a fuel injection valve (21) by passing a current through a magnetic circuit (56) of the fuel injection valve (21) with a predetermined injection pulse (P1), and that passes a current through the magnetic circuit (56) with a predetermined current-passage pulse (P2) within a range in which a needle valve (53) of the fuel injection valve (21) is not driven; and a storage unit (33) that stores information on the behavior of a drive voltage (minus terminal voltage Vm) of the fuel injection valve (21) when a current is passed through the magnetic circuit (56) by the injector control unit (31) with said current-passage pulse (P2).
Inventors:
YANOTO KEISUKE (JP)
Application Number:
PCT/JP2016/001829
Publication Date:
October 27, 2016
Filing Date:
March 30, 2016
Export Citation:
Assignee:
DENSO CORP (JP)
International Classes:
F02D41/20; F02D41/34; F02D45/00; F16K31/06; H01F7/16
Domestic Patent References:
| WO2014174916A1 | 2014-10-30 | |||
| WO2013073111A1 | 2013-05-23 |
Foreign References:
| US5861746A | 1999-01-19 | |||
| JP2015063928A | 2015-04-09 | |||
| JP2006342692A | 2006-12-21 | |||
| JP2006077627A | 2006-03-23 | |||
| JP2010073705A | 2010-04-02 | |||
| JP2011184012A | 2011-09-22 | |||
| US20030071613A1 | 2003-04-17 | |||
| US7595971B2 | 2009-09-29 |
Attorney, Agent or Firm:
KIN, Junhi (JP)
Gold Junki (JP)
Gold Junki (JP)
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