EP 3615932 A1 20200304 - METHOD, CONTROLLER, AND DEVICE FOR DETECTING A GASEOUS SUBSTANCE IN A GAS MIXTURE
Title (en)
METHOD, CONTROLLER, AND DEVICE FOR DETECTING A GASEOUS SUBSTANCE IN A GAS MIXTURE
Title (de)
VERFAHREN, STEUERGERÄT UND VORRICHTUNG ZUR DETEKTION EINES GASFÖRMIGEN STOFFES IN EINEM GASGEMISCH
Title (fr)
PROCÉDÉ, APPAREIL DE COMMANDE ET DISPOSITIF POUR DÉTECTER UNE SUBSTANCE GAZEUSE DANS UN MÉLANGE GAZEUX
Publication
Application
Priority
- DE 102017206878 A 20170425
- EP 2018060131 W 20180420
Abstract (en)
[origin: WO2018197345A1] The invention relates to a method (100) for detecting a gaseous substance in a gas mixture, wherein a first measurement variable (K1) which represents a first chemical and/or physical parameter of the gas mixture is detected, and at least one second measurement variable (M) which represents a second chemical and/or physical parameter of the gas mixture that is different from the first parameter is detected. A starting time (tS) and a starting measurement variable (KStart) of the first parameter corresponding to the starting time (tS) are ascertained when the value of a time derivative of the first measurement variable (K1) exceeds a first specified threshold (SW1) and the value of a time derivative of the second measurement variable (M) exceeds a second specified threshold (SW2). At least one additional first measurement variable (K2) is detected, and an ending time (tE) is ascertained when the at least one additional first measurement variable (K2) corresponds to the starting measurement variable (KStart), wherein an output signal (10) is generated if the value of the difference between the ending time (tE) and the starting time (tS) is greater than a specified minimum time period (tmin).
IPC 8 full level
G01N 33/497 (2006.01)
CPC (source: EP US)
G01N 33/0016 (2013.01 - US); G01N 33/4972 (2013.01 - EP US)
Citation (search report)
See references of WO 2018197345A1
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
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
DE 102017206878 A1 20181025; CN 111051882 A 20200421; CN 111051882 B 20211207; EP 3615932 A1 20200304; JP 2020517951 A 20200618; JP 6910468 B2 20210728; US 11085915 B2 20210810; US 2020132669 A1 20200430; WO 2018197345 A1 20181101
DOCDB simple family (application)
DE 102017206878 A 20170425; CN 201880042594 A 20180420; EP 18718822 A 20180420; EP 2018060131 W 20180420; JP 2019557808 A 20180420; US 201816607841 A 20180420