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1. (WO2019025129) METHOD FOR ASCERTAINING THE STATE OF LOAD OF AN SCR CATALYST, AND SCR CATALYST DEVICE
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Pub. No.: WO/2019/025129 International Application No.: PCT/EP2018/068513
Publication Date: 07.02.2019 International Filing Date: 09.07.2018
IPC:
F01N 3/20 (2006.01) ,F01N 9/00 (2006.01) ,F01N 11/00 (2006.01)
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01
MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
N
GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
3
Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
08
for rendering innocuous
10
by thermal or catalytic conversion of noxious components of exhaust
18
characterised by methods of operation; Regulation
20
specially adapted for catalytic conversion
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01
MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
N
GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
9
Electrical control of exhaust gas treating apparatus
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01
MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
N
GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
11
Monitoring or diagnostic devices for exhaust-gas treatment apparatus
Applicants:
CONTINENTAL AUTOMOTIVE GMBH [DE/DE]; Vahrenwalder Straße 9 30165 Hannover, DE
NGK EUROPE GMBH [DE/DE]; Westerbachstrasse 32 61476 Kronberg im Taunus, DE
Inventors:
REITMEIER, Torsten; DE
KOLBECK, Sabrina; DE
DREHER, Marian; DE
Common
Representative:
CONTINENTAL AUTOMOTIVE GMBH; Postfach 22 16 39 80506 München, DE
Priority Data:
10 2017 213 594.804.08.2017DE
Title (EN) METHOD FOR ASCERTAINING THE STATE OF LOAD OF AN SCR CATALYST, AND SCR CATALYST DEVICE
(FR) PROCÉDÉ POUR DÉTERMINER L’ÉTAT DE CHARGE D'UN CATALYSEUR SCR ET SYSTÈME DE CATALYSEUR SCR
(DE) VERFAHREN ZUM ERMITTELN DES BELADUNGSZUSTANDS EINES SCR-KATALYSATORS UND SCR-KATALYSATORVORRICHTUNG
Abstract:
(EN) The invention relates to a method and an SCR catalyst device for ascertaining the state of load of an SCR catalyst (110) located in an exhaust system of an internal combustion engine. The method of the invention involves acquiring the hydrogen concentration in the exhaust gas of the internal combustion engine downstream of the SCR catalyst (110) and ascertaining the state of load of the SCR catalyst (110) at least in part on the basis of the acquired hydrogen concentration in the exhaust gas of the internal combustion engine.
(FR) La présente invention concerne un procédé et un système de catalyseur SCR pour déterminer l'état de charge d'un catalyseur SCR (110) disposé dans une ligne d'échappement d'un moteur à combustion interne. Le procédé selon l'invention consiste à détecter la concentration en hydrogène dans les gaz d'échappement du moteur à combustion interne en aval du catalyseur SCR (110) et à déterminer l'état de charge du catalyseur SCR (110) au moins en partie d’après la concentration en hydrogène détectée dans les gaz d'échappement du moteur à combustion interne.
(DE) Die vorliegende Erfindung betrifft ein Verfahren und eine SCR-Katalysatorvorrichtung zum Ermitteln des Beladungszustands eines in einem Abgasstrang einer Brennkraftmaschine angeordneten SCR-Katalysators (110). Das erfindungsgemäße Verfahren weist ein Erfassen der Wasserstoffkonzentration im Abgas der Brennkraftmaschine stromabwärts des SCR-Katalysators (110) und ein Ermitteln des Beladungszustands des SCR-Katalysators (110) zumindest teilweise basierend auf der erfassten Wasserstoffkonzentration im Abgas der Brennkraftmaschine auf.
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: German (DE)
Filing Language: German (DE)