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KR970070447A - 내연 기관의 배기 가스 내의 촉매의 가열 제어 방법 - Google Patents

내연 기관의 배기 가스 내의 촉매의 가열 제어 방법 Download PDF

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Publication number
KR970070447A
KR970070447A KR1019970014642A KR19970014642A KR970070447A KR 970070447 A KR970070447 A KR 970070447A KR 1019970014642 A KR1019970014642 A KR 1019970014642A KR 19970014642 A KR19970014642 A KR 19970014642A KR 970070447 A KR970070447 A KR 970070447A
Authority
KR
South Korea
Prior art keywords
internal combustion
combustion engine
catalyst
temperature
heating control
Prior art date
Application number
KR1019970014642A
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English (en)
Inventor
힐버트 볼프강
Original Assignee
랄프 홀거 베렌스, 게오르그 뮐러
로베르트 보쉬 게엠베하
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 랄프 홀거 베렌스, 게오르그 뮐러, 로베르트 보쉬 게엠베하 filed Critical 랄프 홀거 베렌스, 게오르그 뮐러
Publication of KR970070447A publication Critical patent/KR970070447A/ko

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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
    • 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
    • F01N3/2006—Periodically heating or cooling catalytic reactors, e.g. at cold starting or overheating
    • 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
    • F01N3/22—Control of additional air supply only, e.g. using by-passes or variable air pump drives
    • 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
    • F01N3/22—Control of additional air supply only, e.g. using by-passes or variable air pump drives
    • F01N3/222—Control of additional air supply only, e.g. using by-passes or variable air pump drives using electric valves only
    • 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
    • F01N2430/00—Influencing exhaust purification, e.g. starting of catalytic reaction, filter regeneration, or the like, by controlling engine operating characteristics
    • F01N2430/06—Influencing exhaust purification, e.g. starting of catalytic reaction, filter regeneration, or the like, by controlling engine operating characteristics by varying fuel-air ratio, e.g. by enriching fuel-air mixture
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D37/00—Non-electrical conjoint control of two or more functions of engines, not otherwise provided for
    • F02D37/02—Non-electrical conjoint control of two or more functions of engines, not otherwise provided for one of the functions being ignition
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/02—Circuit arrangements for generating control signals
    • F02D41/021—Introducing corrections for particular conditions exterior to the engine
    • F02D41/0235—Introducing corrections for particular conditions exterior to the engine in relation with the state of the exhaust gas treating apparatus
    • F02D41/024—Introducing corrections for particular conditions exterior to the engine in relation with the state of the exhaust gas treating apparatus to increase temperature of the exhaust gas treating apparatus
    • F02D41/0255—Introducing corrections for particular conditions exterior to the engine in relation with the state of the exhaust gas treating apparatus to increase temperature of the exhaust gas treating apparatus to accelerate the warming-up of the exhaust gas treating apparatus at engine start
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/02—Circuit arrangements for generating control signals
    • F02D41/04—Introducing corrections for particular operating conditions
    • F02D41/042—Introducing corrections for particular operating conditions for stopping the engine
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
    • F02P5/00—Advancing or retarding ignition; Control therefor
    • F02P5/04—Advancing or retarding ignition; Control therefor automatically, as a function of the working conditions of the engine or vehicle or of the atmospheric conditions
    • F02P5/145—Advancing or retarding ignition; Control therefor automatically, as a function of the working conditions of the engine or vehicle or of the atmospheric conditions using electrical means
    • F02P5/15—Digital data processing
    • F02P5/1502—Digital data processing using one central computing unit
    • F02P5/1506—Digital data processing using one central computing unit with particular means during starting
    • 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
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
    • 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)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Theoretical Computer Science (AREA)
  • Signal Processing (AREA)
  • Exhaust Gas After Treatment (AREA)
  • Combined Controls Of Internal Combustion Engines (AREA)

Abstract

본 발명의 과제는 내연 기관에 있어서, 촉매 가열 수단을 기동시킴으로써 촉매의 과열을 방지하기 위한 방법을 제공하는 것이다. 이를 해결하기 위해, 본 발명은 내연 기관의 실제 스타트 후에 있어서의 적어도 하나의 촉매 가열 수단에 의한 촉매의 가열 제어 방법에 있어서, 실제 스타트 전의 내연 기관의 최후 정지 시에 내연 기관이 아직 저온 상태였을 때만 적어도 하나의 촉매 수단이 기동된다.

Description

내연 기관의 배기 가스 내의 촉매의 가열 제어 방법
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 각종 센서와 조작단 및 제어 장치를 구비한 내연 기관에 대한 본 발명의 기술적 주변도, 제2도는 본 발명에 의한 방법의 일 실시 태양의 흐름도.

Claims (6)

  1. 실제 스타트 전의 내연 기관의 최후 정지 시에 내연 기관이 아직 저온 상태였을 때에만 적어도 하나의 촉매 가열 수단이 기동되는 것을 특징으로 하는 내연 기관의 실제 스타트 후에 있어서의 적어도 하나의 촉매 가열 수단에 의한 촉매의 가열 제어 방법.
  2. 제1항에 있어서, 내연 기관의 냉각 매체 및/또는 윤활 매체의 온도가 각각 소정치 이하에 있을 때 내연 기관이 저온 상태인 것으로 간주되는 것을 특징으로 하는 방법.
  3. 제1항에 있어서, 촉매 가열수단으로서, 점화 지연, 혼합물의 농후화 및 2차공기의 취입 중 적어도 하나의 수단을 포함하는 것을 특징으로 하는 방법.
  4. 제2항에 있어서, 내연 기관의 정지 시에 내연 기관의 온도에 대한 척도가 측정되고, 이 온도에 관한 정보가 기억되며, 이에 의해 내연 기관의 실제 스타트 시에 상기 정보가 이용되는 것을 특징으로 하는 방법.
  5. 제4항에 있어서, 상기 정보가, 내연기관의 정지 시의 온도가 소정의 한계치를 초과하고 있는지 또는 밑돌고 있는 지에 관한 정보로 이루어진 것을 특징으로 하는 방법.
  6. 내연 기관의 스타트 후, 촉매의 전방에 2차 공기를 공급함과 동시에 내연 기관으로의 공급 혼합물을 농후화시켜 촉매 내에 발열 반응을 발생시킴으로 인한 내연 기관의 배기 가스 내의 촉매의 가열 제어 방법에 있어서, 내연 기관의 1회 째의 스타트 후, 내연 기관 또는 배기 장치의 범위 내의 온도가 소정의 한계치를 초과했을 때에만, 내연 기관의 2회 째의 스타트 후에 발열 반응이 발생되는 것을 특징으로 하는 내연 기관의 배기 가스내의 촉매의 가열 제어 방법.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019970014642A 1996-04-20 1997-04-19 내연 기관의 배기 가스 내의 촉매의 가열 제어 방법 KR970070447A (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19615830.3 1996-04-20
DE19615830A DE19615830A1 (de) 1996-04-20 1996-04-20 Verfahren zur Steuerung von Katalysatorheizmaßnahmen beim Betrieb von Brennkraftmaschinen

Publications (1)

Publication Number Publication Date
KR970070447A true KR970070447A (ko) 1997-11-07

Family

ID=7791971

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019970014642A KR970070447A (ko) 1996-04-20 1997-04-19 내연 기관의 배기 가스 내의 촉매의 가열 제어 방법

Country Status (5)

Country Link
JP (1) JPH09287443A (ko)
KR (1) KR970070447A (ko)
DE (1) DE19615830A1 (ko)
IT (1) IT1290521B1 (ko)
SE (1) SE9701451L (ko)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19804429A1 (de) * 1998-02-05 1999-08-12 Opel Adam Ag Verfahren zum schnellen Erreichen der Aktivierungstemperatur eines motornah angeordneten Katalysators einer fremdgezündeten Brennkraftmaschine
DE50209970D1 (de) * 2002-05-14 2007-05-31 Ford Global Tech Llc Verfahren zur Vorbereitung des Anlassens einer Brennkraftmaschine
JP5077781B2 (ja) * 2009-09-16 2012-11-21 株式会社デンソー 内燃機関の排気浄化装置
DE102010064175A1 (de) * 2010-12-27 2012-06-28 Robert Bosch Gmbh Einspritzsystem, Brennkraftmaschine und Verfahren zum Betrieb eines Einspritzsystems
US9587597B2 (en) 2013-06-05 2017-03-07 Toyota Jidosha Kabushiki Kaisha Internal combustion engine

Also Published As

Publication number Publication date
JPH09287443A (ja) 1997-11-04
ITMI970766A1 (it) 1998-10-03
IT1290521B1 (it) 1998-12-04
SE9701451D0 (sv) 1997-04-18
DE19615830A1 (de) 1997-10-23
SE9701451L (sv) 1997-10-21

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PA0109 Patent application

Patent event code: PA01091R01D

Comment text: Patent Application

Patent event date: 19970419

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PC1203 Withdrawal of no request for examination
WITN Application deemed withdrawn, e.g. because no request for examination was filed or no examination fee was paid