Method for pulsation correction within a measuring device...

Details Method for pulsation correction within a measuring device... Method for pulsation correction within a measuring device...

2007-10-23

2007-10-23

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

11242722

ABSTRACT:
A method and a device for the pulsation correction of measured values of a flow device, which is used to measure pulsating gas flows in internal combustion engines. A raw signal of the flow sensor is fed to an adder of a compensation circuit. The raw signal is at the same time fed to a multiple frequency filter, which has at least one high-pass filter, at least one low-pass filter and at least one band-pass filter. The filtered signals are written into addresses of a correction characteristics map. The values stored in addresses are added to the raw signal by the adder.

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patent: 5646344 (1997-07-01), Konzelmann
patent: 5889203 (1999-03-01), Wild et al.
patent: 197 43 340 (1999-04-01), None

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