Method and device for operating a combustion engine

Details Method and device for operating a combustion engine Method and device for operating a combustion engine

2006-10-24

2006-10-24

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

C073S118040

Reexamination Certificate

active

07127347

ABSTRACT:
A method and a device for operating a combustion engine allow a plausibility check of two pressure sensors in a mass-flow line of the combustion engine in any operating range of the combustion engine. At least one component effecting a pressure drop is provided in the mass-flow line, and a first pressure is measured upstream from the at least one component with the aid of a first pressure sensor, and a second pressure is measured downstream from the at least one component with the aid of a second pressure sensor. The first pressure sensor and the second pressure sensor are checked for plausibility as a function of at least one modeled variable characterizing at least one pressure drop in the mass-flow line between the first pressure sensor and the second pressure sensor.

REFERENCES:
patent: 4903649 (1990-02-01), Staerzl

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