Method and device for determining the exhaust gas...

Details Method and device for determining the exhaust gas... Method and device for determining the exhaust gas...

2005-03-22

2005-03-22

Vo, Hieu T. (Department: 3747)

Data processing: vehicles, navigation, and relative location

Vehicle control, guidance, operation, or indication

With indicator or control of power plant

C123S568210

Reexamination Certificate

active

06871134

ABSTRACT:
For determining the exhaust gas recirculation mass flow and the exhaust gas recirculation rate of an internal combustion engine (1) dependent on this, it is proposed, while said internal combustion engine (1) is in operation, to adapt a characteristic curve, determined before said internal combustion engine (1) is initially started up, representing the cylinder mass flow (dmzyl) supplied to the cylinders of said internal combustion engine (1), which is composed of the fresh air mass flow (dmHFM) and the exhaust mass flow recirculated via an exhaust gas recirculation pipe (16), to said fresh air mass flow (dmHFM), known for various operating points of said internal combustion engine. The exhaust gas recirculation mass flow (dmAGR) is then determined as a function of said fresh air mass flow (dmHFM), measured at a particular transient operating point of said internal combustion engine, using the adapted characteristic curve of said cylinder mass flow (dmzyl).

REFERENCES:
patent: 5738126 (1998-04-01), Fausten
patent: 6622704 (2003-09-01), Wienand et al.
patent: 199 50 146 (2000-04-01), None
patent: 44 22 184 (2003-01-01), None
patent: 2 829 185 (2003-03-01), None

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