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Title:
FUEL INJECTION CONTROL DEVICE
Document Type and Number:
Japanese Patent JP2012158999
Kind Code:
A
Abstract:

To highly accurately control an injection state by using an injection ratio parameter corresponding to the current environmental condition, while preventing an increase in learning processing load of the injection ratio parameter.

This fuel injection control device includes a calculating means 31 for calculating an injection ratio parameter based on a detecting value of a fuel pressure sensor, a leaning means 32 for learning the injection ratio parameter, and a setting means 33 for setting an injection command signal based on the learnt injection ratio parameter. Correlation models MTh, MInt and MP(θ) expressing a correlation with an environmental value such as the fuel temperature Th, a fuel interval Int and cylinder internal pressure P(θ) and the injection ratio parameter, are stored in a memory. The injection ratio parameter (a detecting parameter) calculated by the calculating means 31 is converted into an injection ratio parameter (a reference parameter) corresponding to a reference environmental value, based on the correlation model and the current environmental value, and is learnt by the learning means 32.


Inventors:
Yamada, Naoyuki
Application Number:
JP2011000017460
Publication Date:
August 23, 2012
Filing Date:
January 31, 2011
Export Citation:
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Assignee:
DENSO CORP
International Classes:
F02D45/00; F02D41/04; F02D41/38; F02M51/00; F02M61/10; F02M65/00
Domestic Patent References:
JP2011001917A2011-01-06
JP2011001916A2011-01-06
JP2011001915A2011-01-06
JP2005105947A2005-04-21
JP2008276562A2008-11-13
JP2009091994A2009-04-30
JP2008280850A2008-11-20
Attorney, Agent or Firm:
山田 強
栗田 恭成
日野 京子
安藤 悟
松田 洋



 
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