Fuel injection control apparatus and fuel injection control...

Details Fuel injection control apparatus and fuel injection control... Fuel injection control apparatus and fuel injection control...

2011-01-04

2011-01-04

Huynh, Hai H (Department: 3747)

Internal-combustion engines

Combustion chamber means having fuel injection only

Using multiple injectors or injections

C123S435000, C123S436000, C123S300000

Reexamination Certificate

active

07861686

ABSTRACT:
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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