Title:
FUEL INJECTION CONTROL DEVICE
Document Type and Number:
Japanese Patent JP2015021389
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a fuel injection control device for stabilizing combustion while suppressing the occurrence of smoke.SOLUTION: The fuel injection control device for a spark ignition type direct-injection engine 1 having an ignition plug 36 arranged at the center of a combustion chamber 31 and a direct-injection injector 67 for injecting fuel directly into the combustion chamber executes first fuel injection for injecting 80-90% of a total fuel injection amount in a period from an intake stroke to the first half of a compression stroke to form substantially uniform and lean air-fuel mixture, and second fuel injection for injecting 10-20% of the total fuel injection amount in the second half of the compression stroke to form locally rich air-fuel mixture around the ignition plug, when the operating condition of the spark ignition type direct-injection engine is a predetermined or higher load condition.
Inventors:
KITAURA TOMOKI
AKIYAMA HIROSHI
AKIYAMA HIROSHI
Application Number:
JP2013147594A
Publication Date:
February 02, 2015
Filing Date:
July 16, 2013
Export Citation:
Assignee:
FUJI HEAVY IND LTD
International Classes:
F02D41/34; F02B23/08; F02B23/10; F02D41/02; F02D41/04; F02M51/00; F02M63/00
Domestic Patent References:
| JP2006169976A | 2006-06-29 | |||
| JP2013007305A | 2013-01-10 | |||
| JP2012172665A | 2012-09-10 | |||
| JP2004239208A | 2004-08-26 | |||
| JP2010048212A | 2010-03-04 | |||
| JPH02169834A | 1990-06-29 |
Attorney, Agent or Firm:
Hiroaki Inada
Atsushi Watabe
Atsushi Watabe