Patent · US Active

Method for correcting an offset for a pressure difference measured using a differential pressure sensor situated in an air duct

US9291519B2 · kind B2 · utility

0Cited by

3References

26Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Soenke Mannal · Pfalzgrafenweiler, DE
Berthold Burk · Bietigheim-Bissingen, DE
Horst Mueller · Rio Rancho, US
Michael Bachner · Stuttgart, DE

Key dates

Filing date	Jul 8, 2013
Grant date	Mar 22, 2016
Priority date	—
Expiry date	Apr 24, 2034

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02T10/12
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A method for correcting an offset for a pressure difference measured using a differential pressure sensor situated in an air duct. The offset is computed using an output signal of a pressure sensor, including: transferring the air duct into a predetermined operating situation in which a predetermined pressure difference is considered to be applied to the differential pressure sensor, measuring a level of the output signal in the predetermined operating situation, and computing the offset based on the measured level of the output signal.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.