Title:
FUEL INJECTION CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE
Document Type and Number:
WIPO Patent Application WO/2012/131943
Kind Code:
A1
Abstract:
The purpose of the present invention is to suppress, in an internal combustion engine in which two injectors are disposed in a line upstream and downstream in an intake pipe, adhesion of deposits to the downstream-side injector. In order to suppress such adhesion, a fuel injection control device according to one embodiment of the present invention operates both injectors together when a required fuel injection amount is equal to or greater than a reference value. The reference value is set to a value equal to or greater than the sum of lower limit injection amounts of the injectors. In such case, the fuel injection control device adjusts the proportion of fuel injected from the injector disposed downstream in the intake pipe to be greater than the proportion of fuel injected from the injector disposed upstream in the intake pipe.
Inventors:
KANEKO NAOYA (JP)
Application Number:
PCT/JP2011/058044
Publication Date:
October 04, 2012
Filing Date:
March 30, 2011
Export Citation:
Assignee:
TOYOTA MOTOR CO LTD (JP)
KANEKO NAOYA (JP)
KANEKO NAOYA (JP)
International Classes:
F02M69/00; F02D41/34
Foreign References:
| JP2008163749A | 2008-07-17 | |||
| JP2008298046A | 2008-12-11 | |||
| JP2005201083A | 2005-07-28 | |||
| JP2001214785A | 2001-08-10 | |||
| JP2010065623A | 2010-03-25 | |||
| JP2008163749A | 2008-07-17 | |||
| JP2005226529A | 2005-08-25 |
Other References:
See also references of EP 2693028A4
Attorney, Agent or Firm:
TAKAHASHI, Hideki et al. (JP)
Hideki Takahashi (JP)
Hideki Takahashi (JP)
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Claims: