Fuel injection control apparatus and fuel injection control method

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United States of America Patent

PATENT NO 7861686
SERIAL NO

12528865

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Abstract

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According to an internal combustion engine fuel injection control apparatus and control method, when an operating region of the engine shifts from a fuel cut region in which no fuel is injected to a low load region in which a small amount of fuel is injected, or visa versa, at least one pilot injection is executed ahead of a main injection in the low load region, and the number of pilot injections is determined according to the engine coolant temperature. This injection control makes it possible to ensure drivability while suppressing the amount of HC produced.

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Patent Owner(s)

Patent OwnerAddress
TOYOTA JIDOSHA KABUSHIKI KAISHA1 TOYOTA-CHO TOYOTA-SHI AICHI-KEN 471-8571

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Koyama, Takashi Susono, JP 121 546
Ogura, Seiji Susono, JP 3 5
Ohki, Hisashi Numadu, JP 18 218

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