Patent · US Active

Method for verifying the plausibility of a measuring device for determining the quality of an aqueous urea solution in a reservoir of an SCR catalyst system

US9239320B2 · kind B2 · utility

1Cited by

0References

20Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Wolfgang Klenk · Besigheim, DE
Matthias Burger · Bad Birnbach, DE
Reinold Weinmann · Esslingen am Neckar, DE
Wilhelm Dueck · Niefern, DE

Key dates

Filing date	May 31, 2013
Grant date	Jan 19, 2016
Priority date	—
Expiry date	May 17, 2034

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02T10/40
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A method for verifying the plausibility of a measuring device for determining a quality of an aqueous urea solution in a reservoir of an SCR catalyst system comprises determining whether a filling of the reservoir has taken place, determining the quality of the aqueous urea solution in the reservoir and detecting whether an error of the measuring device is present or whether the reservoir was filled with an aqueous urea solution, the quality of which deviates from a default value consisting of a filling status of the reservoir and the quality of the aqueous urea solution in said reservoir.

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