Title:
FUEL INJECTION CONTROL DEVICE
Document Type and Number:
Japanese Patent JP2019065721
Kind Code:
A
Abstract:
To appropriately determine injection completion timing by using a fuel injection valve.SOLUTION: A fuel injection system includes: a common rail 11 for holding high-pressure fuel in the pressure-accumulating state; a fuel pump 12 for pressure-feeding fuel to the common rail 11; a fuel injection valve 30 for injecting the high-pressure fuel that is held in the pressure accumulating state in the common rail 11; and a fuel pressure sensor 40 for detecting fuel pressure in a fuel passage from the common rail 11 to a nozzle hole 35 of the fuel injection valve 30. An ECU 50 includes: a fuel pressure acquisition section for acquiring the fuel pressure detected by the fuel pressure sensor 40; a differential value calculation section for differentiating the fuel pressure acquired by the fuel pressure acquisition section to calculate a fuel pressure differential value; and a completion timing calculation section for based on the fuel pressure differential value, calculating injection completion timing at which the fuel injection by the fuel injection valve 30 is completed.SELECTED DRAWING: Figure 1
Inventors:
MIKAMI NAOMI
Application Number:
JP2017189174A
Publication Date:
April 25, 2019
Filing Date:
September 28, 2017
Export Citation:
Assignee:
DENSO CORP
International Classes:
F02D41/04; F02D45/00; F02M55/02; F02M65/00
Domestic Patent References:
| JP2010223183A | 2010-10-07 | |||
| JP2012127278A | 2012-07-05 | |||
| JP2008144749A | 2008-06-26 | |||
| JP2001073857A | 2001-03-21 |
Attorney, Agent or Firm:
Tsuyoshi Yamada
Kyoko Hino
Hiroshi Matsuda
Yusuke Kita
Kyoko Hino
Hiroshi Matsuda
Yusuke Kita