CONTROL DEVICE OF INTERNAL COMBUSTION ENGINE

PROBLEM TO BE SOLVED: To establish compatibility between suppression of discharge of particulate matter and achievement of proper fuel consumption.SOLUTION: An engine 10 includes a fuel injection valve 19 for directly emitting a jet of fuel into a cylinder. An ECU 50 calculates fuel injection timing...

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Bibliographic Details
Main Author NAKADA SHINGO
Format Patent
LanguageEnglish
Published 04.03.2013
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 establish compatibility between suppression of discharge of particulate matter and achievement of proper fuel consumption.SOLUTION: An engine 10 includes a fuel injection valve 19 for directly emitting a jet of fuel into a cylinder. An ECU 50 calculates fuel injection timing (PM reference injection timing) in which the amount of particulate matter (PM) discharged from the engine 10 is minimized, on the basis of an engine operation state. In addition, the amount of PM contained in exhaust air from the engine 10 is detected. An injection timing command value for giving a command to perform fuel injection by the fuel injection valve 19, in each fuel injection, is gradually changed toward fuel injection timing (lowest-fuel-consumption injection timing), in which the lowest fuel consumption is achieved in the current engine operation state, from the PM reference injection timing, within a range in which the amount of PM does not exceed a predetermined upper limit.
Bibliography:Application Number: JP20110181158