FUEL INJECTION CONTROLLER

PROBLEM TO BE SOLVED: To provide a fuel injection controller, which can easily attain a control for suppressing fuel adhesion to a piston and can attain the suppression of fuel adhesion without changing the injection timing.SOLUTION: When an idling condition is shifted to a vehicle running condition...

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Bibliographic Details
Main Authors FUJII HIROAKI, NAKADA SHINGO
Format Patent
LanguageEnglish
Published 27.10.2011
Subjects
BLASTING
COMBUSTION ENGINES
CONTROLLING COMBUSTION ENGINES
HEATING
HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
LIGHTING
MECHANICAL ENGINEERING
WEAPONS
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Summary:PROBLEM TO BE SOLVED: To provide a fuel injection controller, which can easily attain a control for suppressing fuel adhesion to a piston and can attain the suppression of fuel adhesion without changing the injection timing.SOLUTION: When an idling condition is shifted to a vehicle running condition, an idling period Ti between the idling condition and the running condition is measured (S12, S13). When the measured idling period Ti is longer than a determination time period Tb immediately after shifting to the running condition (S19: YES), penetrating-force-decrease control is performed to reduce penetrating force by division injection (S21). Therefore, in a condition where PM is apt to generate, such that a piston temperature is reduced due to long-time idling, fuel adhesion to the piston can be suppressed by the penetrating-force-decrease control, and generation of PM can be sufficiently reduced. Further, in the penetrating-force-decrease control, since the fuel is injected without changing the optimum injection timing, deterioration of emission and fuel economy can be prevented.
Bibliography:Application Number: JP20100085627