FUEL CONTROL DEVICE OF SUPERCHARGED ENGINE

PURPOSE:To prevent deterioration of exhaust ability and of a supercharger and a fuel consumption ratio by providing a fuel decrease correcting means which decreasingly corrects a fuel supply amount to an engine supplied through a fuel control means when a supercharge pressure not less than a specifi...

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Bibliographic Details
Main Authors SHIGENAGA MAKOTO, KATAMOTO TATSUO, SHIMIZU HIROSHI, OSHIMA TOMOMI
Format Patent
LanguageEnglish
Published 16.03.1992
Subjects
BLASTING
COMBUSTION ENGINES
CONTROLLING COMBUSTION ENGINES
HEATING
HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
LIGHTING
MECHANICAL ENGINEERING
WEAPONS
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Summary:PURPOSE:To prevent deterioration of exhaust ability and of a supercharger and a fuel consumption ratio by providing a fuel decrease correcting means which decreasingly corrects a fuel supply amount to an engine supplied through a fuel control means when a supercharge pressure not less than a specified value is detected by a supercharge pressure detecting means. CONSTITUTION:An air-fuel ratio detecting means detects an air-fuel ratio of intake air-fuel mixture of an engine through detection of an oxygen density in engine exhaust. A fuel control means perform a closed loop control of a fuel supply amount to the engine such that the air-fuel ratio detected by the air-fuel ratio detecting means is a target air-fuel ratio. A supercharge pressure detecting means detects that the pressure by a supercharger is not less than a specified value. Then, a fuel decrease correcting means decreasingly corrects the fuel supply amount to the engine.
Bibliography:Application Number: JP19900194255