Method of operating an internal combustion engine such as an eng

Details Method of operating an internal combustion engine such as an eng Method of operating an internal combustion engine such as an eng

1998-06-29

2000-08-08

Kwon, John

Internal-combustion engines

Charge forming device

Including exhaust gas condition responsive means

123520, 123687, F02B 7508

Patent

active

060986069

ABSTRACT:
The invention is directed to a method for operating an internal combustion engine such as for a motor vehicle. Regeneration gas is added for only a short time duration (T) to air inducted into the combustion chamber of the engine and fuel is injected directly into the combustion chamber. The fuel and regeneration gas are combusted in the combustion chamber and a specific behavior of the combustion of the fuel and the regeneration gas is assumed. The actual combustion behavior of the fuel and the regeneration gas is detected and the hydrocarbon concentration of the regeneration gas is determined from the assumed specific behavior and the detected behavior. Fuel is injected into the combustion chamber during the next time duration (T) for an injection time (TI) dependent upon the hydrocarbon concentration.

REFERENCES:
patent: 5245978 (1993-09-01), Orzel
patent: 5553595 (1996-09-01), Nishioka et al.
patent: 5611319 (1997-03-01), Machida
patent: 5634454 (1997-06-01), Fujita
patent: 5685285 (1997-11-01), Ohtani et al.
patent: 5778867 (1998-07-01), Osanai
patent: 5806507 (1998-09-01), Osanai
patent: 5836293 (1998-11-01), Osanai
patent: 5839421 (1998-11-01), Suzuki

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