BRPI0419226A - método, dispositivo e produto de programa de computador para diagnóstico de um catalisador de oxidação - Google Patents

método, dispositivo e produto de programa de computador para diagnóstico de um catalisador de oxidação

Info

Publication number
BRPI0419226A
BRPI0419226A BRPI0419226-5A BRPI0419226A BRPI0419226A BR PI0419226 A BRPI0419226 A BR PI0419226A BR PI0419226 A BRPI0419226 A BR PI0419226A BR PI0419226 A BRPI0419226 A BR PI0419226A
Authority
BR
Brazil
Prior art keywords
oxidation catalyst
nox
content
supplied
exhaust gas
Prior art date
Application number
BRPI0419226-5A
Other languages
English (en)
Inventor
Andreas Hinz
Lennart Andersson
Original Assignee
Volvo Lastvagnar Ab
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 Volvo Lastvagnar Ab filed Critical Volvo Lastvagnar Ab
Publication of BRPI0419226A publication Critical patent/BRPI0419226A/pt

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
    • F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
    • F01N3/021—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
    • F01N3/023—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters using means for regenerating the filters, e.g. by burning trapped particles
    • F01N3/0231—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters using means for regenerating the filters, e.g. by burning trapped particles using special exhaust apparatus upstream of the filter for producing nitrogen dioxide, e.g. for continuous filter regeneration systems [CRT]
    • 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
    • F01N2250/00—Combinations of different methods of purification
    • F01N2250/02—Combinations of different methods of purification filtering and catalytic conversion

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Exhaust Gas After Treatment (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)

Abstract

MéTODO, DISPOSITIVO E PRODUTO DE PROGRAMA DE COMPUTADOR PARA DIAGNóSTICO DE UM CATALISADOR DE OXIDAçãO A presente invenção propõe um método, um dispositivo e um produto programa de computador para o diagnóstico de usa catalisador de oxidação (5, 25), para a oxidação de NO para NO~ 2~, em um veículo a motor. Um sistema de pós-tratamento de gás de exaustão (2, 22) compreende pelo menos o anteriormente mencionado catalisador de oxidação e um filtro de particulado (6, 26) e/ou um catalisador de redução de NO~ x~, (4, 26) disposto a jusante do catalisador de oxidação, e uma quantidade predeterminada de um agente de redução é suprida para o sistema de exaustão a montante do catalisador de oxidação, e o conteúdo de NO~ x~, ou o conteúdo de NO~ 2~ é mensurado a jusante do catalisador de oxidação. Em concordância com a presente invenção, o referido método está caracterizado pelo fato de que inclui os seguintes estágios: - um primeiro valor (m11, S2, m31, S31) para o conteúdo de NO~ x~ / NO~ 2~ é mensurado em um ponto em tempo antes que o agente de redução venha a ser suprido para o sistema de gás de exaustão (2, 22)>; - um segundo valor (m12, S4, m32, S33) para o conteúdo de NO~ x~ / NO~ 2~ é mensurado em um ponto em tempo durante o período quando o agente de redução vem a ser suprido para o sistema de gás de exaustão (2, 22); - uma comparação (S6, S35) é feita entre os anteriormente mencionados valores, em conjunção com a qual uma indicação da função prejudicada do catalisador de oxidação é obtida quando a diferença entre os anteriormente mencionados valores medidos é de menos do que um primeiro valor pré-determinado (kll, k31).
BRPI0419226-5A 2004-12-14 2004-12-14 método, dispositivo e produto de programa de computador para diagnóstico de um catalisador de oxidação BRPI0419226A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/SE2004/001902 WO2006065179A1 (en) 2004-12-14 2004-12-14 Method, device and computer program product for diagnosing an oxidation catalyst

Publications (1)

Publication Number Publication Date
BRPI0419226A true BRPI0419226A (pt) 2007-12-18

Family

ID=36588150

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0419226-5A BRPI0419226A (pt) 2004-12-14 2004-12-14 método, dispositivo e produto de programa de computador para diagnóstico de um catalisador de oxidação

Country Status (9)

Country Link
US (1) US8099946B2 (pt)
EP (1) EP1828556B1 (pt)
JP (1) JP4499160B2 (pt)
CN (1) CN100577996C (pt)
AT (1) ATE460573T1 (pt)
BR (1) BRPI0419226A (pt)
DE (1) DE602004025994D1 (pt)
ES (1) ES2341653T3 (pt)
WO (1) WO2006065179A1 (pt)

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US11760170B2 (en) 2020-08-20 2023-09-19 Denso International America, Inc. Olfaction sensor preservation systems and methods
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US11813926B2 (en) 2020-08-20 2023-11-14 Denso International America, Inc. Binding agent and olfaction sensor
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Also Published As

Publication number Publication date
EP1828556A1 (en) 2007-09-05
CN100577996C (zh) 2010-01-06
DE602004025994D1 (de) 2010-04-22
ES2341653T3 (es) 2010-06-24
US8099946B2 (en) 2012-01-24
EP1828556B1 (en) 2010-03-10
JP2008523305A (ja) 2008-07-03
JP4499160B2 (ja) 2010-07-07
CN101115912A (zh) 2008-01-30
ATE460573T1 (de) 2010-03-15
WO2006065179A1 (en) 2006-06-22
US20080302085A1 (en) 2008-12-11

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Legal Events

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B08F Application dismissed because of non-payment of annual fees [chapter 8.6 patent gazette]

Free format text: REFERENTE A 10A ANUIDADE.

B08K Patent lapsed as no evidence of payment of the annual fee has been furnished to inpi [chapter 8.11 patent gazette]

Free format text: REFERENTE AO DESPACHO 8.6 PUBLICADO NA RPI 2284 DE 14/10/2014.