Control apparatus of internal combustion engine

Details Control apparatus of internal combustion engine Control apparatus of internal combustion engine

2007-10-23

2007-10-23

Nguyen, Tu M. (Department: 3748)

Power plants

Internal combustion engine with treatment or handling of...

By means producing a chemical reaction of a component of the...

C060S274000, C060S285000, C060S300000, C123S339100

Reexamination Certificate

active

10814261

ABSTRACT:
The ignition timing is sustained at an initial value during a predetermined time beginning at a start of an engine, and is retarded after the predetermined time is elapsed to heat a catalyst at an early time. The predetermined time ends when the negative pressure of an intake pipe or the negative pressure of a brake booster reaches to a predetermined value. That is, the predetermined time is a period, which begins at a start of the engine and ends when a proper negative pressure can be sustained in the brake booster. As a result, it is possible to assure a negative pressure in the brake booster at an early time and to reduce exhaust emission at a start of the engine simultaneously.

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Communication dated May 19, 2006 in JP Appln. No. 2001-153412 and English translation.

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