EP 2547988 A1 20130123 - METHOD FOR DETERMINING THE FILL LEVEL IN A REDUCING AGENT TANK
Title (en)
METHOD FOR DETERMINING THE FILL LEVEL IN A REDUCING AGENT TANK
Title (de)
VERFAHREN ZUR BESTIMMUNG DES FÜLLSTANDS IM REDUKTIONSMITTEL-TANK
Title (fr)
PROCÉDÉ POUR DÉTERMINER LE NIVEAU DE REMPLISSAGE D'UN RÉSERVOIR D'AGENT DE RÉDUCTION
Publication
Application
Priority
- DE 102010011151 A 20100311
- EP 2011053492 W 20110308
Abstract (en)
[origin: WO2011110573A1] The invention relates to a method for operating a tank (1) for reducing agent, in particular aqueous urea solution, comprising a sensor (5) having a first electrical contact (6) and a second electrical contact (7). According to the method, a conductance value for liquid reducing agent (14), a conductance value for frozen reducing agent (15), and a conductance value for air (16) are first determined (steps a.1) to a.3)). A voltage is then applied between the first electrical contact (6) and the second electrical contact (7) (step b)). A conductance value between the first electrical contact (6) and the second electrical contact (7) is then determined (step c)). The conductance value determined in step c) is then compared to the conductance values determined in steps a.1) to a.3) and a determination is made as to whether liquid reducing agent (14), frozen reducing agent (15), or air (16) is present.
IPC 8 full level
G01F 23/24 (2006.01); F01N 3/20 (2006.01)
CPC (source: EP US)
B01D 35/027 (2013.01 - US); F01N 3/20 (2013.01 - US); F01N 3/2066 (2013.01 - EP US); F01N 3/208 (2013.01 - US); F01N 13/008 (2013.01 - EP US); G01F 23/242 (2013.01 - EP US); G01N 27/02 (2013.01 - US); F01N 2610/10 (2013.01 - EP US); F01N 2610/1406 (2013.01 - EP US); F01N 2900/1806 (2013.01 - EP US); Y02A 50/20 (2017.12 - EP US); Y02T 10/12 (2013.01 - EP US)
Citation (search report)
See references of WO 2011110573A1
Citation (examination)
WO 2010054733 A1 20100520 - BAYERISCHE MOTOREN WERKE AG [DE], et al
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
DE 102010011151 A1 20110915; EP 2547877 A1 20130123; EP 2547877 B1 20170510; EP 2547988 A1 20130123; JP 2013522515 A 20130613; JP 2013522584 A 20130613; US 2013255234 A1 20131003; US 2014096512 A1 20140410; US 8955308 B2 20150217; US 9074510 B2 20150707; WO 2011110573 A1 20110915; WO 2011110574 A1 20110915
DOCDB simple family (application)
DE 102010011151 A 20100311; EP 11706843 A 20110308; EP 11707662 A 20110308; EP 2011053492 W 20110308; EP 2011053493 W 20110308; JP 2012556497 A 20110308; JP 2012556498 A 20110308; US 201213609601 A 20120911; US 201213609607 A 20120911