Title:
FUEL INJECTION CONTROL DEVICE
Document Type and Number:
Japanese Patent JP2017201158
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a fuel injection control device for actualizing a reduction of a minimum injection amount in partial lift injection without raising a lot of concern about misfire.SOLUTION: The fuel injection control device includes an energizing time calculation part, a setting part, an energization control part, a detection part, an estimation part, and a change part in Step S47. The energizing time calculation part calculates a time for energizing an electric actuator responding to a required injection amount when partial lift injection is performed. The setting part sets the energizing time as a command energizing time when the energizing time calculated by the energizing time calculation part is not shorter than a lower limit time, and sets the lower limit time as the command energizing time when it is shorter than the lower limit time. The detection part detects a physical quantity in correlation with an actual injection amount when the partial lift injection is performed. The estimation part estimates the actual injection amount on the basis of the detection result of the detection part. The change part changes the lower limit time on the basis of a deviation between the estimated actual injection amount and the required injection amount.SELECTED DRAWING: Figure 10
Inventors:
SATAKE NOBUYUKI
NAKANO TOMOHIRO
NAKANO TOMOHIRO
Application Number:
JP2016093318A
Publication Date:
November 09, 2017
Filing Date:
May 06, 2016
Export Citation:
Assignee:
DENSO CORP
TOYOTA MOTOR CORP
TOYOTA MOTOR CORP
International Classes:
F02D45/00; F02D41/04; F02M57/02; F02M65/00
Domestic Patent References:
| JP2016008569A | 2016-01-18 | |||
| JP2015096722A | 2015-05-21 | |||
| JP2010261334A | 2010-11-18 |
Foreign References:
| WO2013191267A1 | 2013-12-27 |
Attorney, Agent or Firm:
Kazuyuki Yahagi
Taihei Nonobe
Takanori Kubo
Taihei Nonobe
Takanori Kubo