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KR980700503A - 촉매기의 기능 감시방법 및 감시장치(Method and device for monitering functions of a catalyst) - Google Patents

촉매기의 기능 감시방법 및 감시장치(Method and device for monitering functions of a catalyst) Download PDF

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Publication number
KR980700503A
KR980700503A KR1019970703894A KR19970703894A KR980700503A KR 980700503 A KR980700503 A KR 980700503A KR 1019970703894 A KR1019970703894 A KR 1019970703894A KR 19970703894 A KR19970703894 A KR 19970703894A KR 980700503 A KR980700503 A KR 980700503A
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South Korea
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catalyst
monitoring
output signal
identified
amount
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KR1019970703894A
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KR100442162B1 (ko
Inventor
레네 센크
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랄프 홀거 베렌스, 게오르그 뮐러
로베르트 보쉬 게엠베하
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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
    • F01N11/00—Monitoring or diagnostic devices for exhaust-gas treatment apparatus, e.g. for catalytic activity
    • 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
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • 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
    • 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
    • F01N3/2066—Selective catalytic reduction [SCR]
    • 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
    • F01N9/00—Electrical control of exhaust gas treating apparatus
    • F01N9/005—Electrical control of exhaust gas treating apparatus using models instead of sensors to determine operating characteristics of exhaust systems, e.g. calculating catalyst temperature instead of measuring it directly
    • 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
    • F01N2550/00—Monitoring or diagnosing the deterioration of exhaust systems
    • F01N2550/02—Catalytic activity of catalytic converters
    • 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
    • F01N2560/00—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics
    • F01N2560/02—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics the means being an exhaust gas sensor
    • F01N2560/023—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics the means being an exhaust gas sensor for measuring or detecting HC
    • 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
    • F01N2610/00—Adding substances to exhaust gases
    • F01N2610/03—Adding substances to exhaust gases the substance being hydrocarbons, e.g. engine fuel
    • 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
    • F01N2900/00—Details of electrical control or of the monitoring of the exhaust gas treating apparatus
    • F01N2900/04—Methods of control or diagnosing
    • F01N2900/0422—Methods of control or diagnosing measuring the elapsed time
    • 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
    • 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
    • Y02T10/40—Engine management systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Analytical Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Biomedical Technology (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Exhaust Gas After Treatment (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
  • Emergency Alarm Devices (AREA)

Abstract

본 발명은 자기 착화형 내연 기관의 촉매기, 예를 들어, 산화 촉매기 및/또는 환원 촉매기의 기능 감시 방법 및 감시 장치에 관한 것이다. 출력 신호를 형성하는 센서가 설치되어 있고, 이 출력 신호는 배기 가스 중의 탄화수소의 비율을 지시한다. 센서으 출력 신호에 의존해서 촉매기의 하자가 식별된다.

Description

촉매기의 기능 감시방법 및 감시장치(Method and device for monitering functions of acatalyst)
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 내연 기관과 촉매기의 전체 개략도.
제2도는 내연 기관과 촉매기의 전체 블록회로도.
제3도는 제 1 실시 예의 플로우차트.

Claims (10)

  1. 자기착화형 내연 기관의 촉매기, 예를 들어, 산화 촉매기 또는 환원 촉매기의 기능 감시 방법으로서, 출력신호를 형성하는 센서가 설치되어 있고, 이 출력신호는 배기 가스 중의 탄화수소의 비율을 지시하는 감시 방법에 있어서, 상기 센서의 출력 신호와, 동작 파라미터에 의존해서 설정이 가능한 파라미터를 기초로 하여, 촉매기의 하자를 식별하는 것을 특징으로 하는 감시 방법.
  2. 제 1 항에 있어서, 촉매기의 주의깊은 감시가 가능한 지속 시간에 대한 척도인 제 1 파라미터가 검출 가능하고, 촉매기가 정상으로 동작하고 있는 지속 시간에 대한 척도인 제 2 파라미터가 검출가능하고, 제 1 파라미터와 제 2 파라미터와의 비교에 의거해서 촉매기의 하자를 식별하는 것을 특징으로 하는 감시 방법.
  3. 제 2 항에 있어서, 촉매기의 검사를 소정의 동작상태가 존재할 때 실행하는 것을 특징으로 하는 감시 방법.
  4. 제 3 항에 있어서, 감시가 행해지는 소정의 동작상태가 회전수 및 분사되는 연료량의 최소한 1개에 의존해서 설정이 가능한 것을 특징으로 하는 감시방법.
  5. 제 1 항 내지 제 4 항중 어느 한 항에 있어서, 촉매기의 정상 동작을 배기가스의 탄화수소의 비율이 임계값을 넘지 아니한 때에 식별하는 것을 특징으로 하는 감시방법.
  6. 제 1 항 내지 제 5 항중 어느 한 항에 있어서, 임계값은 배기 가스 온도, 분사량, 회전수 및 조절량의 파라미터의 최소한 1 개에 의존하는 것을 특징으로 하는 감시방법.
  7. 제 1 항 내지 제 6 항중 어느 한 항에 있어서, 소정의 동작 상태가 존재하는 제 1 지속 시간과, 촉매기의 정상 동작이 식별되는 제 2 지속 시간을 검출하고, 제 1 과 제 2 지속 시간이 주어진 값이상 서로 편차되어 있을 때에 에러를 식별하는 것을 특징으로 하는 감시방법.
  8. 제 1 항 내지 제 7 항중 어느 한 항에 있어서, 소정의 동작 상태가 존재하는 때의 방출되는 유해 물질의 양을 검출하고, 유해 물질량이 소정의 임계값을 넘을 때에 에러를 식별하는 것을 특징으로 하는 감시방법.
  9. 제 1 항 내지 제 8 항중 어느 한 항에 있어서, 유해 물질량은 탄화 수소가 검출된 비율 특성 맵 값 및 공기량 값에 의거해서 검출이 가능한 것을 특징으로 하는 감시방법.
  10. 자기 착화형 내연 기관의 촉매기, 예를 들어, 산호 촉매기 또는 환원 촉매기의 기능 감시 장치에 있어서, 센서가 설치되며, 이 센서는 출력 신호를 형성하고, 이 출력 신호는 배기 가스 중의 탄화수소의 비율을 지시하고, 센서의 출력 신호에 의존하는 수단을 사용하여 촉매기의 하자를 식별하는 것을 특징으로 하는 기능 감시장치.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019970703894A 1995-10-11 1996-07-10 촉매기의작동감시방법및감시장치 Expired - Lifetime KR100442162B1 (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19537788.5 1995-10-11
DE19537788A DE19537788A1 (de) 1995-10-11 1995-10-11 Verfahren und Vorrichtung zur Überwachung der Funktionsweise eines Katalysators

Publications (2)

Publication Number Publication Date
KR980700503A true KR980700503A (ko) 1998-03-30
KR100442162B1 KR100442162B1 (ko) 2005-01-25

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KR1019970703894A Expired - Lifetime KR100442162B1 (ko) 1995-10-11 1996-07-10 촉매기의작동감시방법및감시장치

Country Status (6)

Country Link
US (1) US5927068A (ko)
EP (1) EP0796390B1 (ko)
JP (1) JP3953515B2 (ko)
KR (1) KR100442162B1 (ko)
DE (2) DE19537788A1 (ko)
WO (1) WO1997013964A1 (ko)

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DE19755600C2 (de) * 1997-12-15 2002-01-17 Bosch Gmbh Robert Betrieb eines Verbrennungsmotors in Verbindungmit einem NOx-Speicherkatalysator
DE19811574A1 (de) 1998-03-17 1999-09-23 Siemens Ag Verfahren und Vorrichtung zum Überwachen der Funktionsfähigkeit eines Katalysators einer Brennkraftmaschine
JP3799824B2 (ja) * 1998-06-26 2006-07-19 日産自動車株式会社 内燃機関の排気浄化装置
DE19828928C2 (de) * 1998-06-29 2003-04-17 Siemens Ag Verfahren zur Überwachung des Abgasreinigungssystems einer Brennkraftmaschine
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FR2840017B1 (fr) * 2002-05-24 2006-01-21 Renault Sas Procede pour evaluer l'efficacite d'un convertisseur catalytique d'oxydation
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WO2010093286A1 (en) * 2009-02-12 2010-08-19 Volvo Lastvagnar Ab Method for operating an exhaust aftertreatment system and exhaust aftertreatment system
DE102010028852B4 (de) 2010-05-11 2023-05-17 Robert Bosch Gmbh Verfahren und Vorrichtung zur Diagnose eines Abgasreinigungssystems für eine Brennkraftmaschine
KR101914683B1 (ko) * 2012-12-17 2018-11-02 콘티넨탈 오토모티브 시스템 주식회사 이동 평균값을 이용한 차량의 촉매변환기 이상 진단 방법
CN110307062B (zh) * 2014-11-10 2021-08-10 康明斯排放处理公司 包括烃检测发生介质的排气流体过滤器

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Also Published As

Publication number Publication date
EP0796390B1 (de) 2002-12-11
JP3953515B2 (ja) 2007-08-08
US5927068A (en) 1999-07-27
EP0796390A1 (de) 1997-09-24
DE59609974D1 (de) 2003-01-23
DE19537788A1 (de) 1997-04-17
JPH10510610A (ja) 1998-10-13
WO1997013964A1 (de) 1997-04-17
KR100442162B1 (ko) 2005-01-25

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Patent event date: 19970611

Patent event code: PA01051R01D

Comment text: International Patent Application

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PA0201 Request for examination

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