Internal combustion engine control apparatus and method

Details Internal combustion engine control apparatus and method Internal combustion engine control apparatus and method

2008-05-23

2010-12-14

Huynh, Hai H (Department: 3747)

Data processing: vehicles, navigation, and relative location

Vehicle control, guidance, operation, or indication

With indicator or control of power plant

C123S435000, C123S090150, C123S680000, C123S347000, C123S339220

Reexamination Certificate

active

07853399

ABSTRACT:
An internal combustion engine control apparatus executes an exhaust-valve-early-closing valve timing control in which an exhaust valve is closed before the intake stroke top dead center. The fuel injection timing mode is normally set to an intake-stroke non-synchronized fuel injection mode. However, if the internal combustion engine is idling and the combustion gas temperature is relatively high, the fuel injection timing mode is switched from the intake-stroke non-synchronized fuel injection mode to an intake-stroke synchronized fuel injection mode.

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