Control device of internal combustion engine

Details Control device of internal combustion engine Control device of internal combustion engine

2007-04-03

2007-04-03

Huynh, Hai (Department: 3747)

Internal-combustion engines

Combustion chamber means combined with air-fuel mixture...

Having a single combustible mixture inlet combined with...

C123S090150, C123S345000

Reexamination Certificate

active

11401313

ABSTRACT:
An engine ECU executes a program including the steps of: selecting a map for a warm state or a map for a cold state based on an engine coolant temperature after an engine is started and rapid catalyst warm-up ends; calculating DI ratio r; calculating when to inject fuel from an intake manifold injector as time in synchronization with air intake if a load factor is equal to or greater than a threshold value and fuel is injected from injectors at a ratio predetermined therebetween; and otherwise calculating when to inject fuel from the intake manifold injector as during a period in which an intake valve is closed.

REFERENCES:
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patent: 6971364 (2005-12-01), Pilgram et al.
patent: 2005/0000486 (2005-01-01), Kuzuyama et al.
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patent: A 11-324765 (1999-11-01), None
patent: A 2001-20837 (2001-01-01), None
patent: A 2003-13784 (2003-01-01), None

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