Method and device for operating an internal combustion...

Details Method and device for operating an internal combustion... Method and device for operating an internal combustion...

2006-12-05

2006-12-05

Dolinar, Andrew M. (Department: 3747)

Data processing: vehicles, navigation, and relative location

Vehicle control, guidance, operation, or indication

With indicator or control of power plant

C701S108000, C123S568160

Reexamination Certificate

active

07146268

ABSTRACT:
A method and a device for operating an internal combustion engine having exhaust-gas recirculation are provided, which make it possible to dispense with an ambient-pressure sensor. In this context, an intake-manifold pressure and an ambient pressure are modeled. The intake-manifold pressure is modeled as a function of the modeled ambient pressure. The intake-manifold pressure is also measured. The modeled intake-manifold pressure is compared to the measured intake-manifold pressure. The modeled ambient pressure is adapted as a function of the comparison result. The modeled ambient pressure is adapted only when the exhaust-gas recirculation is inactive.

REFERENCES:
patent: 6170475 (2001-01-01), Lewis et al.
patent: 6378515 (2002-04-01), Geyer
patent: 6763708 (2004-07-01), Ting et al.
patent: 2003/0075158 (2003-04-01), Milos et al.
patent: 198 44 086 (1999-11-01), None
patent: 96 32579 (1996-10-01), None

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