Apparatus and a method for controlling an internal...

Details Apparatus and a method for controlling an internal... Apparatus and a method for controlling an internal...

2005-04-12

2005-04-12

Kwon, John T. (Department: 3747)

Internal-combustion engines

Engine speed regulator

C123S337000, C123S299000

Reexamination Certificate

active

06877479

ABSTRACT:
When an air excess rate is controlled to be reduced based upon an early activation demand of an exhaust gas purification apparatus or a regeneration demand of NOx trap catalyst at a state immediately after an engine has started from at a cold condition, a fuel injection state (injection timing of a main injection, a pilot injection quantity, an injection pressure and so on) from a fuel injection valve is variably controlled so that a crank angle position where a heat generation rate is maximized is kept constant, thereby stabilizing a combustion and preventing combustion fluctuations.

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