KR970070447A - Method of heating control of catalyst in exhaust gas of internal combustion engine - Google Patents

Method of heating control of catalyst in exhaust gas of internal combustion engine 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
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KR
South Korea
Prior art keywords
internal combustion
combustion engine
catalyst
temperature
heating control
Prior art date
Application number
KR1019970014642A
Other languages
Korean (ko)
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/en

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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.An object of the present invention is to provide a method for preventing overheating of a catalyst by starting a catalyst heating means in an internal combustion engine. In order to solve this problem, the present invention provides a method for controlling the heating of a catalyst by at least one catalyst heating means after the actual start of the internal combustion engine, in which the internal combustion engine is still at a low temperature at the last stop of the internal combustion engine before the actual start. At least one catalytic means is activated.

Description

내연 기관의 배기 가스 내의 촉매의 가열 제어 방법Method of heating control of catalyst in exhaust gas of internal combustion engine

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.

제1도는 각종 센서와 조작단 및 제어 장치를 구비한 내연 기관에 대한 본 발명의 기술적 주변도, 제2도는 본 발명에 의한 방법의 일 실시 태양의 흐름도.1 is a technical peripheral view of the present invention for an internal combustion engine having various sensors, an operation stage and a control device, and FIG. 2 is a flowchart of an embodiment of the method according to the present invention.

Claims (6)

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.At least one catalyst heating means is activated only when the internal combustion engine is still at a low temperature at the last stop of the internal combustion engine before actual start, wherein at least one catalyst heating means after the actual start of the internal combustion engine Heating control method. 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.A method according to claim 1, characterized in that the internal combustion engine is considered to be in a low temperature state when the temperatures of the cooling medium and / or the lubrication medium of the internal combustion engine are respectively below a predetermined value. 제1항에 있어서, 촉매 가열수단으로서, 점화 지연, 혼합물의 농후화 및 2차공기의 취입 중 적어도 하나의 수단을 포함하는 것을 특징으로 하는 방법.The method of claim 1, wherein the catalyst heating means comprises at least one of ignition delay, thickening of the mixture and blowing of secondary air. 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.The method according to claim 2, wherein a measure of the temperature of the internal combustion engine is measured when the internal combustion engine is stopped, and information about the temperature is stored, whereby the information is used at the actual start of the internal combustion engine. Way. 제4항에 있어서, 상기 정보가, 내연기관의 정지 시의 온도가 소정의 한계치를 초과하고 있는지 또는 밑돌고 있는 지에 관한 정보로 이루어진 것을 특징으로 하는 방법.The method according to claim 4, wherein the information comprises information on whether the temperature at the time of stopping the internal combustion engine exceeds or falls below a predetermined limit. 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.A method of controlling the heating of a catalyst in the exhaust gas of an internal combustion engine by supplying secondary air to the front of the catalyst and simultaneously enriching the feed mixture to the internal combustion engine after the start of the internal combustion engine to generate an exothermic reaction in the catalyst. After the first start of the engine, an exothermic reaction occurs after the second start of the internal combustion engine only when the temperature in the range of the internal combustion engine or the exhaust device exceeds a predetermined limit. Method of heating control of catalyst in gas. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019970014642A 1996-04-20 1997-04-19 Method of heating control of catalyst in exhaust gas of internal combustion engine KR970070447A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19615830A DE19615830A1 (en) 1996-04-20 1996-04-20 Vehicle IC engine catalytic converter heating control
DE19615830.3 1996-04-20

Publications (1)

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

Family

ID=7791971

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019970014642A KR970070447A (en) 1996-04-20 1997-04-19 Method of heating control of catalyst in exhaust gas of internal combustion engine

Country Status (5)

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

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19804429A1 (en) * 1998-02-05 1999-08-12 Opel Adam Ag Method for quickly reaching the activation temperature of a catalytic converter of a spark-ignited internal combustion engine arranged close to the engine
EP1367256B1 (en) * 2002-05-14 2007-04-18 Ford Global Technologies, LLC Method for preparing an internal combustion engine to start
JP5077781B2 (en) * 2009-09-16 2012-11-21 株式会社デンソー Exhaust gas purification device for internal combustion engine
DE102010064175A1 (en) * 2010-12-27 2012-06-28 Robert Bosch Gmbh Injection system, internal combustion engine and method for operating an injection system
US9587597B2 (en) 2013-06-05 2017-03-07 Toyota Jidosha Kabushiki Kaisha Internal combustion engine

Also Published As

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

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