WO2001024914A1 - Dispositif et procede de commande d'un systeme de purification photochimique de gaz d'echappement de moteurs a combustion interne - Google Patents

Dispositif et procede de commande d'un systeme de purification photochimique de gaz d'echappement de moteurs a combustion interne Download PDF

Info

Publication number
WO2001024914A1
WO2001024914A1 PCT/EP2000/009439 EP0009439W WO0124914A1 WO 2001024914 A1 WO2001024914 A1 WO 2001024914A1 EP 0009439 W EP0009439 W EP 0009439W WO 0124914 A1 WO0124914 A1 WO 0124914A1
Authority
WO
WIPO (PCT)
Prior art keywords
exhaust gas
internal combustion
combustion engine
radiation source
adjusting means
Prior art date
Application number
PCT/EP2000/009439
Other languages
German (de)
English (en)
Inventor
Dieter Neyer
Werner Engeler
Thorsten DÜSTERDIEK
Original Assignee
Volkswagen Aktiengesellschaft
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Volkswagen Aktiengesellschaft filed Critical Volkswagen Aktiengesellschaft
Publication of WO2001024914A1 publication Critical patent/WO2001024914A1/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
    • F01N3/18—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control
    • F01N3/20—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control specially adapted for catalytic conversion ; Methods of operation or control of catalytic converters
    • F01N3/2086—Activating the catalyst by light, photo-catalysts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/007—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by irradiation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/92—Chemical or biological purification of waste gases of engine exhaust gases
    • B01D53/94—Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
    • B01D53/9495—Controlling the catalytic process
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/80—Type of catalytic reaction
    • B01D2255/802—Photocatalytic
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies

Definitions

  • the invention relates to a method for controlling a photochemical exhaust gas cleaning system with the features mentioned in the preamble of claim 1 and an arrangement for controlling a photochemical exhaust gas cleaning system with the features mentioned in the preamble of claim 7.
  • the pollutants formed during the combustion process of an air-fuel mixture such as nitrogen oxides NO x , incompletely burned hydrocarbons HC or carbon monoxide CO, are usually converted on catalysts to produce less environmentally relevant products.
  • the necessary activation energy can be provided by thermal means and, on the other hand, so-called photocatalysts are known in which the activation energy required for the implementation is provided by light.
  • the latter systems enable the exhaust gas to be treated at temperatures which are already substantially lower.
  • a much higher selectivity and, under certain circumstances, implementation can be achieved by a suitable choice of wavelength.
  • this object is achieved by a method for controlling a photochemical emission control system of internal combustion engines with the features mentioned in claim 1 and by the arrangement for controlling the photochemical emission control system of internal combustion engines with the features mentioned in claim 7.
  • the exhaust gas purification system consists of a photocatalyst arranged in the exhaust line of the internal combustion engine, at least one radiation source assigned to the photocatalyst and at least one exhaust gas sensor downstream of the photocatalyst.
  • the exhaust gas sensor detects a proportion or a concentration of at least one pollutant component in the exhaust gas and thus determines a mass flow for the pollutant component and makes it available in a control unit which is connected to the radiation source, the internal combustion engine and the exhaust gas sensor directly or via actuating means will and
  • a working mode of the internal combustion engine and / or the radiation source is regulated as a function of the mass flow of the pollutant component via the respective actuating means
  • the actuating means of the radiation source comprises a regulator for a radiation intensity, so that, for example, the energy consumption of the radiation source can be reduced if the internal combustion engine only has low pollutant emissions and thus low mass flows.
  • the exhaust gas cleaning system comprises several radiation sources of different types
  • the individual radiation sources of such an arrangement are In terms of their emission maximum, they are matched to the wavelengths required for the implementation of the various pollutant components and are controlled depending on the mass flows of the pollutant components elevated
  • the exhaust gas cleaning system 10 comprises at least one radiation source 12 and a photocatalyst 18 arranged in an exhaust line 14 of an internal combustion engine 16. Downstream of the photocatalyst 18, an exhaust gas sensor 20 is also assigned to the photocatalyst 18
  • control device 22 which is connected directly to the exhaust gas sensor 20 and via adjusting means 24 or 26 to the internal combustion engine 16 or the radiation source 12
  • the control of the exhaust gas purification system 10 can be carried out as follows
  • the exhaust gas sensor 20 can be designed, for example, as a component-specific sensor that determines HC, NO x , H2 or CO concentrations in the exhaust gas a lambda probe must also be used (e.g. point or broadband probe) Of course, several probes / sensors can also be used side by side.
  • a mass flow for the pollutant component is determined from the measured proportion or the measured concentration, taking into account a measured or calculated air mass flow.
  • the mass flow is read into the control unit 22 and evaluated there using a model.
  • a model further includes parameters of the exhaust gas cleaning system 10, such as the light intensity or the wavelength of the radiation source 12, as well as selected operating parameters of the internal combustion engine 16.
  • the latter parameters include, for example, an injected fuel mass and the air mass flow.
  • the model ultimately provides manipulated variables for the actuating means 24, 26, which in turn influence a working mode of the internal combustion engine 16 or the radiation source 12.
  • the internal combustion engine 16 and on the other hand the radiation source 12 are regulated as a function of the pollutant component.
  • the actuating means 26 of the radiation source 12 can comprise, for example, a controller that makes it possible to influence the intensity of the light. Furthermore, in the event that a plurality of radiation sources 12 with different emission maxima are present, these can be controlled as a function of the mass flows of different pollutant components. For this purpose, the individual radiation sources 12 have an emission maximum that is matched to the necessary wavelengths for implementing the respective pollutant components.
  • the mass flow of carbon monoxide CO at the exhaust gas is increased in the course of dynamic operation of the internal combustion engine 16, this is detected by the exhaust gas sensor 20.
  • regulation of the internal combustion engine 16 can take place via the adjusting means 24 in such a way that the composition of the air-fuel mixture to be burned is changed and thus the CO emission is also reduced.
  • the Radiation intensity of the radiation source 12 can be increased if its emission maximum is matched to the conversion of carbon monoxide CO in the photocatalyst 18.
  • Other radiation sources 12 can be throttled, if necessary, and the energy requirement by the exhaust gas cleaning system 10 is thus tied to the actual requirements.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Analytical Chemistry (AREA)
  • Toxicology (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Environmental & Geological Engineering (AREA)
  • Exhaust Gas After Treatment (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)

Abstract

Dispositif et procédé de commande d'un système de purification photochimique de gaz d'échappement de moteurs à combustion interne. Ledit système comporte un photocatalyseur placé dans la conduite d'échappement du moteur à combustion interne, au moins une source de rayonnement associée au photocatalyseur, au moins un détecteur de gaz d'échappement placé en aval du photocatalyseur et un appareil de commande qui est relié, directement ou par l'intermédiaire de moyens de réglage, à la source de rayonnement, au moteur à combustion interne et au capteur de gaz d'échappement. Selon ledit procédé, (a) une proportion ou une concentration d'au moins un polluant présent dans les gaz d'échappement est détectée avec le capteur de gaz d'échappement, et un débit massique du polluant est déterminé à l'aide de cette proportion ou concentration et mis à disposition d'un appareil de commande (22) qui est relié, directement ou par l'intermédiaire de moyens de réglage, à la source de rayonnement (12), au moteur à combustion interne (16) et au capteur (20) de gaz d'échappement, et (b) un mode de fonctionnement du moteur à combustion interne (16) et/ou de la source de rayonnement (12) est réglé en fonction du débit massique du polluant par l'intermédiaire des moyens de réglage (24, 25) correspondants.
PCT/EP2000/009439 1999-10-07 2000-09-27 Dispositif et procede de commande d'un systeme de purification photochimique de gaz d'echappement de moteurs a combustion interne WO2001024914A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19948150A DE19948150A1 (de) 1999-10-07 1999-10-07 Anordnung und Verfahren zur Steuerung einer photochemischen Abgasreinigungsanlage von Brennkraftmaschinen
DE19948150.4 1999-10-07

Publications (1)

Publication Number Publication Date
WO2001024914A1 true WO2001024914A1 (fr) 2001-04-12

Family

ID=7924698

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2000/009439 WO2001024914A1 (fr) 1999-10-07 2000-09-27 Dispositif et procede de commande d'un systeme de purification photochimique de gaz d'echappement de moteurs a combustion interne

Country Status (2)

Country Link
DE (1) DE19948150A1 (fr)
WO (1) WO2001024914A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2804722B1 (fr) 2000-02-03 2002-03-08 Peugeot Citroen Automobiles Sa Dispositif de refroidissement d'un moteur de vehicule automobile
US7470874B2 (en) * 2003-12-09 2008-12-30 General Electric Company System for radiation-based reduction of particulate matter

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4980040A (en) * 1989-06-26 1990-12-25 Trustees Of Boston University Photopromoted method for decomposing oxides of nitrogen into environmentally compatible products
EP0778070A1 (fr) * 1995-12-09 1997-06-11 Werner Schröder Procédé pour la purification d'air d'échappement
WO1997022794A2 (fr) * 1995-12-19 1997-06-26 Lockheed Martin Corporation Procede et appareil pour reduire les substances polluantes et contaminantes dans les gaz d'echappement d'un moteur
DE19607862A1 (de) * 1996-03-01 1997-09-04 Volkswagen Ag Verfahren und Vorrichtung zur Abgasreinigung
EP0798143A1 (fr) * 1996-03-22 1997-10-01 Kabushiki Kaisha Equos Research Méthode et dispositif pour purifier de l'air comprenant une réactivation d'adsorbant
JPH09287435A (ja) * 1996-04-18 1997-11-04 Mitsubishi Motors Corp 内燃機関の排ガス浄化装置

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5492678A (en) * 1993-07-23 1996-02-20 Hokushin Industries, Inc. Gas-cleaning equipment and its use
DE19510804A1 (de) * 1995-03-24 1996-09-26 Dornier Gmbh Verfahren und Vorrichtung zur Stickoxidminderung in Abgasen von Verbrennungsmaschinen

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4980040A (en) * 1989-06-26 1990-12-25 Trustees Of Boston University Photopromoted method for decomposing oxides of nitrogen into environmentally compatible products
EP0778070A1 (fr) * 1995-12-09 1997-06-11 Werner Schröder Procédé pour la purification d'air d'échappement
WO1997022794A2 (fr) * 1995-12-19 1997-06-26 Lockheed Martin Corporation Procede et appareil pour reduire les substances polluantes et contaminantes dans les gaz d'echappement d'un moteur
DE19607862A1 (de) * 1996-03-01 1997-09-04 Volkswagen Ag Verfahren und Vorrichtung zur Abgasreinigung
EP0798143A1 (fr) * 1996-03-22 1997-10-01 Kabushiki Kaisha Equos Research Méthode et dispositif pour purifier de l'air comprenant une réactivation d'adsorbant
JPH09287435A (ja) * 1996-04-18 1997-11-04 Mitsubishi Motors Corp 内燃機関の排ガス浄化装置

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 1998, no. 03 27 February 1998 (1998-02-27) *

Also Published As

Publication number Publication date
DE19948150A1 (de) 2001-04-12

Similar Documents

Publication Publication Date Title
DE102015212514B4 (de) Verfahren zur Abgasnachbehandlung und Vorrichtung zur Reinigung des Abgases einer Brennkraftmaschine
DE10040554B4 (de) Verfahren zum Betrieb einer Abgasreinigungsanlage mit Partikelfilter und Stickoxidspeicher
DE69627301T2 (de) Lufteinspritzstrategien zur wirkungsvollen verbrennung vonkohlenwasserstoffen abgegebenen durch einen kohlenwasserstoffilter
EP2118460B1 (fr) Procédé et dispositif de production d'ammoniac pour le traitement des gaz d'échappement de moteurs à combustion interne dans un véhicule automobile
EP1893853B1 (fr) Procede permettant de faire fonctionner un piege a particules, et dispositif pour la mise en oeuvre de ce procede
DE19922960C2 (de) Abgasreinigungsanlage mit interner Ammoniakerzeugung zur Stickoxidreduktion
WO1999041493A1 (fr) Dispositif et procede pour le fonctionnement d'un agencement permettant la reaction d'au moins un constituant d'un flux de gaz d'echappement d'un moteur a combustion interne
EP0243534B1 (fr) Procédé de dépollution des gaz d'échappement d'un moteur à combustion par utilisation d'un système catalytique et dispositif mettant en oeuvre ce procédé
EP1106798A1 (fr) Dispositif et procédé pour NOx- et/ou SOx régénération d'un catalyseur accumulateur de NOx
EP1224385B1 (fr) PROCEDE POUR ETABLIR UN DIAGNOSTIC SUR UN ETAT DE DETERIORATION DANS UN POT CATALYTIQUE A ACCUMULATION DE NOx MONTE DANS UN CANAL DE GAZ D'ECHAPPEMENT D'UN MOTEUR A COMBUSTION INTERNE
WO2001024914A1 (fr) Dispositif et procede de commande d'un systeme de purification photochimique de gaz d'echappement de moteurs a combustion interne
EP1205648A2 (fr) Procédé et dispositif pour le chauffage d'un catalysateur
DE10014881B4 (de) Vorrichtung und Verfahren zur Kalibrierung von Lambdasonden
DE10042490A1 (de) Verfahren und Vorrichtung zum Steuern eines Verbrennungsmotorsystems
EP0711908A2 (fr) Procédé de commande pour l'optimisation des émissions pollutantes d'un système de combustion
DE102006026739A1 (de) Verfahren und Vorrichtung zum Betreiben einer Brennkraftmaschine
EP1957769B1 (fr) Dispositif et procede de traitement thermique d'un flux de gaz d'echappement
EP1051585B1 (fr) Procede et dispositif pour faire fonctionner une installation de combustion
EP0961871B1 (fr) Procede et dispositif de commande d'une systeme de combustion, epuration catalytique des gaz d'echappement et systeme de combustion
EP1136670A2 (fr) Dispositif et procédé de surveillance d'un catalyseur à trois voies dans le pot d'échappement d'un moteur à combustion interne
DE10252732B4 (de) Verfahren und Vorrichtung zum Betrieb einer Abgasnachbehandlungseinrichtung einer Brennkraftmaschine
DE602005006363T2 (de) System zur Behandlung von NOx im Abgasstrom einer automobilen Brennkraftmaschine
DE102016210897A1 (de) Steuerung einer Stickoxidemission in Betriebsphasen hoher Last
DE102005000827B4 (de) Abgasreinigungsvorrichtung für einen Verbrennungsmotor
DE19957184A1 (de) Abgasreinigungsanlage und Verfahren zum Betrieb einer Abgasreinigungsanlage

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): CN IN JP KR US

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE

121 Ep: the epo has been informed by wipo that ep was designated in this application
122 Ep: pct application non-entry in european phase
NENP Non-entry into the national phase

Ref country code: JP