Control apparatus for internal combustion engine

Details Control apparatus for internal combustion engine Control apparatus for internal combustion engine

2006-06-26

2010-10-05

Cronin, Stephen K (Department: 3747)

Internal-combustion engines

Engine speed regulator

Idle speed control

C123S339100, C123S431000, C701S104000

Reexamination Certificate

active

07806104

ABSTRACT:
An engine ECU executes a program including the steps of: detecting an engine speed NE, engine load, and engine coolant temperature (S100, S110, S115); when determination is made of being in an idle region (YES at S120), determining whether in a cold idle region, a transitional region, or a warm idle region (S130); injecting fuel from an intake manifold injector alone when in the cold idle region (S140); injecting fuel from the intake manifold injector and injecting fuel from an in-cylinder injector at the feed pressure when in the transitional region (S150); and injecting fuel from the in-cylinder injector at the feed pressure when in the warm idle region (S160).

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U.S. Appl. No. 11/447,025, filed Jun. 6, 2006 in the name of Takeshi Iwahashi.
Jan. 12, 2010 Office Action issued in Japanese Patent Application No. 2005-192047 (with translation).

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