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Title:
FUEL INJECTION CONTROL UNIT
Document Type and Number:
WIPO Patent Application WO/2005/038224
Kind Code:
A1
Abstract:
A fuel injection control unit (7) for controlling fuel injection, comprising a target injection amount calculation part (40) and a correction calculation part (50) performing calculation for providing a corrective target fuel injection amount necessary for providing a target fuel injection amount by an injector (4-1). The correction calculation part (50) further comprises a first calculation part (51) responding to the target fuel injection amount and the target pressure of high-pressure fuel and calculating a standard target fuel injection amount based on standard fuel injection characteristic data in the cylinder of the injector (4-1), a data storage part (53) storing individual fuel injection characteristic data on the outside of the cylinder of the injector (4-1), a second calculation part (52) calculating a correction value for the standard target fuel injection amount based on the standard target fuel injection amount and the individual fuel injection characteristic data, and a third calculation part (54) calculating the corrective target fuel injection amount based on the correction value and the standard target fuel injection amount. Thus, more accurate fuel injection control is enabled in consideration of the effects of a cylinder pressure.

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Inventors:
MIYAWAKI TAKAO (JP)
FUJII HIROTO (JP)
KISHI ATSUSHI (JP)
UEDA ATSUSHI (JP)
Application Number:
PCT/JP2004/015549
Publication Date:
April 28, 2005
Filing Date:
October 14, 2004
Export Citation:
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Assignee:
BOSCH AUTOMOTIVE SYSTEMS CORP (JP)
MIYAWAKI TAKAO (JP)
FUJII HIROTO (JP)
KISHI ATSUSHI (JP)
UEDA ATSUSHI (JP)
International Classes:
F02D41/40; F02D41/04; F02D41/24; F02D41/38; (IPC1-7): F02D41/04; F02M47/00
Foreign References:
JP2000220508A2000-08-08
JP2003227393A2003-08-15
JP2003120393A2003-04-23
Attorney, Agent or Firm:
Takano, Masatoshi (15-14 Shiba 3-chom, Minato-ku Tokyo, JP)
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