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1. WO2020193281 - METHOD AND APPARATUS FOR REGENERATING A COATED PARTICLE FILTER IN THE EXHAUST TRACT OF A GASOLINE-OPERATED MOTOR VEHICLE

Publication Number WO/2020/193281
Publication Date 01.10.2020
International Application No. PCT/EP2020/057247
International Filing Date 17.03.2020
IPC
F01N 9/00 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
9Electrical control of exhaust gas treating apparatus
F01N 3/22 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
3Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
08for rendering innocuous
10by thermal or catalytic conversion of noxious components of exhaust
18characterised by methods of operation; Control
22Control of additional air supply only, e.g. using by-passes or variable air pump drives
CPC
F01N 2430/06
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
2430Influencing exhaust purification, e.g. starting of catalytic reaction, filter regeneration, or the like, by controlling engine operating characteristics
06by varying fuel-air ratio, e.g. by enriching fuel-air mixture
F01N 2560/021
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
2560Exhaust systems with means for detecting or measuring exhaust gas components or characteristics
02the means being an exhaust gas sensor
021for measuring or detecting ammonia NH3
F01N 2560/025
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
2560Exhaust systems with means for detecting or measuring exhaust gas components or characteristics
02the means being an exhaust gas sensor
025for measuring or detecting O2, e.g. lambda sensors
F01N 2560/026
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
2560Exhaust systems with means for detecting or measuring exhaust gas components or characteristics
02the means being an exhaust gas sensor
026for measuring or detecting NOx
F01N 3/22
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
3Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
08for rendering innocuous
10by thermal or catalytic conversion of noxious components of exhaust
18characterised by methods of operation; Control
22Control of additional air supply only, e.g. using by-passes or variable air pump drives
F01N 9/002
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
9Electrical control of exhaust gas treating apparatus
002of filter regeneration, e.g. detection of clogging
Applicants
  • VITESCO TECHNOLOGIES GMBH [DE]/[DE]
Inventors
  • KLEINER, Florian
  • ACHLEITNER, Erwin
  • KURNIAWAN, Hendra
  • HAFT, Gerhard
  • KOLODZIEJ, Soufiane
  • RODATZ, Paul
Agents
  • WALDMANN, Alexander
Priority Data
10 2019 204 079.925.03.2019DE
10 2019 219 892.917.12.2019DE
Publication Language German (DE)
Filing Language German (DE)
Designated States
Title
(DE) VERFAHREN UND VORRICHTUNG ZUR REGENERATION EINES BESCHICHTETEN PARTIKELFILTERS IM ABGASTRAKT EINES BENZINBETRIEBENEN KRAFTFAHRZEUGS
(EN) METHOD AND APPARATUS FOR REGENERATING A COATED PARTICLE FILTER IN THE EXHAUST TRACT OF A GASOLINE-OPERATED MOTOR VEHICLE
(FR) PROCÉDÉ ET DISPOSITIF DE RÉGÉNÉRATION D'UN FILTRE À PARTICULES À REVÊTEMENT DANS LE SYSTÈME D’ÉCHAPPEMENT D'UN VÉHICULE AUTOMOBILE À ESSENCE
Abstract
(DE)
Die Erfindung betrifft ein Verfahren zur Regeneration eines beschichteten Partikelfilters im Abgastrakt eines benzinbetriebenen Kraftfahrzeugs, bei welchem eine Regelung einer in den Abgastrakt geleiteten Sekundärluftmenge vorgenommen wird, bei welcher ein Istwert für die Regelung von einem stromab des Partikelfilters angeordneten Sensor bereitgestellt wird und bei welcher die Regelung derart vorgenommen wird, dass die stromab des Partikelfilters vorliegende Luftzahl um die stöchiometrische Luftzahl oszilliert. Des Weiteren betrifft die Erfindung eine Vorrichtung zur Regeneration eines beschichteten Partikelfilters im Abgastrakt eines benzinbetriebenen Kraftfahrzeugs.
(EN)
The invention relates to a method for regenerating a coated particle filter in the exhaust tract of a gasoline-operated motor vehicle, wherein a secondary air volume directed into the exhaust tract is controlled in a closed-loop manner, wherein an actual value for the closed-loop control is provided from a sensor arranged downstream of the particle filter, and wherein the closed-loop control is carried out such that the air ratio present downstream of the particle filter oscillates about the stochiometric air ratio. The invention furthermore relates to an apparatus for regeneration of a coated particle filter in the exhaust tract of a gasoline-operated motor vehicle.
(FR)
L'invention concerne un procédé de régénération d'un filtre à particules à revêtement dans le système d'échappement d'un véhicule automobile à essence, dans lequel une régulation d'une quantité d'air secondaire introduite dans le système d'échappement est effectuée, dans lequel une valeur réelle pour la régulation est fournie par un capteur disposé en aval du filtre à particules et dans lequel la régulation est effectuée de telle manière que la valeur d'air présente en aval du filtre à particules oscille autour de la valeur d'air stoechiométrique. En outre, l'invention concerne un dispositif de régénération d'un filtre à particules à revêtement dans le système d'échappement d'un véhicule automobile à essence.
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