Title:
燃料噴射装置
Document Type and Number:
Japanese Patent JP4196895
Kind Code:
B2
Abstract:
A fuel injection system includes an injector (3) and a control device (5). The injector (3) includes a control chamber (33) that drive-controls a needle (35) with a pressure (Pc) therein. The control device (5) determines a required injection amount (Q) in accordance with an operation state of an internal combustion engine (1), and controls a fuel injection amount injected from the injector through controlling an electric valve (34) therein. The control device (5) determines a geometric shape defined by a time axis and a lift-height change of the needle (35). The control device (5) further divides the lift-height change of the needle (35) during the period from when the needle (35) starts moving up to when the needle (35) starts moving down into a plurality of portions. The control device (5) then evaluates the lift-height change of the needle (35) in the plurality of portions based on a physical equation.
Inventors:
Koji Ishizuka
Takayuki Fukushima
Kenichiro Nakata
Takayuki Fukushima
Kenichiro Nakata
Application Number:
JP2004204931A
Publication Date:
December 17, 2008
Filing Date:
July 12, 2004
Export Citation:
Assignee:
株式会社デンソー
International Classes:
F02D41/40; F02D41/38; F02D45/00; F02M45/02; F02M47/00; F02M47/02
Domestic Patent References:
| JP9296767A | ||||
| JP10266888A | ||||
| JP11241666A | ||||
| JP2001355536A | ||||
| JP2002201992A | ||||
| JP2003269297A |
Attorney, Agent or Firm:
Kenji Ishiguro