Method and device for monitoring a pressure sensor

Details Method and device for monitoring a pressure sensor Method and device for monitoring a pressure sensor

2005-05-24

2005-05-24

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

C123S396000, C073S118040

Reexamination Certificate

active

06898511

ABSTRACT:
A method and an arrangement for monitoring a pressure sensor are suggested which determines a value representing the ambient pressure of an internal combustion engine. Furthermore, an index for the extent of the correction of the mixture composition via the mixture control system is determined and the supplied air mass is detected from the throttle flap angle and the intake manifold pressure. A fault in the determination of the ambient pressure is detected when the measured air mass deviates from the computed air mass and the correction of the mixture control system is less than a predetermined limit value and when, for an open throttle flap, intake manifold pressure and ambient pressure deviate impermissibly from each other.

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patent: WO 1 02720 (2001-01-01), None

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