Title:
CONTROL DEVICE OF FUEL INJECTION VALVE AND ITS METHOD
Document Type and Number:
Japanese Patent JP2019190334
Kind Code:
A
Abstract:
To control energization to a solenoid so that fuel injection is not performed in energization for detecting a characteristic of the solenoid of a fuel injection valve.SOLUTION: Solenoids (58, 60) for opening/closing and driving a valve element (54) of a fuel injection valve (50) injecting a fuel into a cylinder of an internal combustion engine (11), and a detection portion (26) for directly detecting a situation of combustion in the cylinder of the internal combustion engine are disposed. To detect a characteristic of the solenoids, the solenoids are energized in a region in which the fuel injection valve does not inject a fuel, and an energization condition to the solenoids is changed on the basis of the situation of the combustion in the cylinder detected by the detection portion after the energization to the solenoids.SELECTED DRAWING: Figure 1
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Inventors:
TAKEUCHI TOMOYA
KANAYA TOMOHIRO
HIRATA YASUO
KANAYA TOMOHIRO
HIRATA YASUO
Application Number:
JP2018082297A
Publication Date:
October 31, 2019
Filing Date:
April 23, 2018
Export Citation:
Assignee:
DENSO CORP
International Classes:
F02D41/20; F02D45/00; F02M51/00; F02M51/06; F02M65/00; H01F7/18
Domestic Patent References:
| JP2016205276A | 2016-12-08 | |||
| JP2016156362A | 2016-09-01 | |||
| JPH11173201A | 1999-06-29 | |||
| JP2009180098A | 2009-08-13 |
Foreign References:
| US20060047405A1 | 2006-03-02 |
Attorney, Agent or Firm:
Meisei International Patent Office