JP6708185B2 - 排気浄化システムの制御装置 - Google Patents

排気浄化システムの制御装置 Download PDF

Info

Publication number
JP6708185B2
JP6708185B2 JP2017160333A JP2017160333A JP6708185B2 JP 6708185 B2 JP6708185 B2 JP 6708185B2 JP 2017160333 A JP2017160333 A JP 2017160333A JP 2017160333 A JP2017160333 A JP 2017160333A JP 6708185 B2 JP6708185 B2 JP 6708185B2
Authority
JP
Japan
Prior art keywords
nox
amount
ozone
ozone supply
catalyst
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Fee Related
Application number
JP2017160333A
Other languages
English (en)
Japanese (ja)
Other versions
JP2019039322A5 (enExample
JP2019039322A (ja
Inventor
佑輔 真島
佑輔 真島
樋口　和弘
和弘 樋口
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Denso Corp
Original Assignee
Denso Corp
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 Denso Corp filed Critical Denso Corp
Priority to JP2017160333A priority Critical patent/JP6708185B2/ja
Priority to DE112018004733.4T priority patent/DE112018004733T5/de
Priority to PCT/JP2018/030876 priority patent/WO2019039481A1/ja
Publication of JP2019039322A publication Critical patent/JP2019039322A/ja
Publication of JP2019039322A5 publication Critical patent/JP2019039322A5/ja
Priority to US16/783,251 priority patent/US20200173328A1/en
Application granted granted Critical
Publication of JP6708185B2 publication Critical patent/JP6708185B2/ja
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

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
    • F01N3/206—Adding periodically or continuously substances to exhaust gases for promoting purification, e.g. catalytic material in liquid form, NOx reducing agents
    • F01N3/208—Control of selective catalytic reduction [SCR], e.g. by adjusting the dosing of reducing agent
    • 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
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B13/00—Oxygen; Ozone; Oxides or hydroxides in general
    • C01B13/10—Preparation of ozone
    • C01B13/11—Preparation of ozone by electric discharge
    • 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
    • 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
    • F01N3/0807—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by using absorbents or adsorbents
    • F01N3/0814—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by using absorbents or adsorbents combined with catalytic converters, e.g. NOx absorption/storage reduction catalysts
    • 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
    • F01N3/0807—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by using absorbents or adsorbents
    • F01N3/0828—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by using absorbents or adsorbents characterised by the absorbed or adsorbed substances
    • F01N3/0842—Nitrogen oxides
    • 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
    • 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
    • F01N2240/00—Combination or association of two or more different exhaust treating devices, or of at least one such device with an auxiliary device, not covered by indexing codes F01N2230/00 or F01N2250/00, one of the devices being
    • F01N2240/38—Combination or association of two or more different exhaust treating devices, or of at least one such device with an auxiliary device, not covered by indexing codes F01N2230/00 or F01N2250/00, one of the devices being an ozone (O3) generator, e.g. for adding ozone after generation of ozone from air
    • 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
    • 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
    • F01N2560/026—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics the means being an exhaust gas sensor for measuring or detecting NOx
    • 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
    • F01N2610/06—Adding substances to exhaust gases the substance being in the gaseous form
    • 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
    • F01N2900/06—Parameters used for exhaust control or diagnosing
    • F01N2900/14—Parameters used for exhaust control or diagnosing said parameters being related to the exhaust gas
    • F01N2900/1402—Exhaust gas composition
    • 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)
  • Organic Chemistry (AREA)
  • Toxicology (AREA)
  • Environmental & Geological Engineering (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • General Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Analytical Chemistry (AREA)
  • Biomedical Technology (AREA)
  • Exhaust Gas After Treatment (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)
  • Oxygen, Ozone, And Oxides In General (AREA)
JP2017160333A 2017-08-23 2017-08-23 排気浄化システムの制御装置 Expired - Fee Related JP6708185B2 (ja)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP2017160333A JP6708185B2 (ja) 2017-08-23 2017-08-23 排気浄化システムの制御装置
DE112018004733.4T DE112018004733T5 (de) 2017-08-23 2018-08-21 Steuervorrichtung für ein Abgasreinigungssystem
PCT/JP2018/030876 WO2019039481A1 (ja) 2017-08-23 2018-08-21 排気浄化システムの制御装置
US16/783,251 US20200173328A1 (en) 2017-08-23 2020-02-06 Controller for exhaust gas purification system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2017160333A JP6708185B2 (ja) 2017-08-23 2017-08-23 排気浄化システムの制御装置

Publications (3)

Publication Number Publication Date
JP2019039322A JP2019039322A (ja) 2019-03-14
JP2019039322A5 JP2019039322A5 (enExample) 2019-11-14
JP6708185B2 true JP6708185B2 (ja) 2020-06-10

Family

ID=65438988

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2017160333A Expired - Fee Related JP6708185B2 (ja) 2017-08-23 2017-08-23 排気浄化システムの制御装置

Country Status (4)

Country Link
US (1) US20200173328A1 (enExample)
JP (1) JP6708185B2 (enExample)
DE (1) DE112018004733T5 (enExample)
WO (1) WO2019039481A1 (enExample)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10865689B2 (en) * 2018-09-21 2020-12-15 Cummins Inc. Systems and methods for diagnosis of NOx storage catalyst
EP4170139B1 (en) * 2021-10-19 2024-05-01 Volvo Penta Corporation Method for predicting urea crystal build-up in an engine system

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009281290A (ja) * 2008-05-22 2009-12-03 Toyota Motor Corp 内燃機関の排気ガス浄化装置
JP2010031730A (ja) * 2008-07-29 2010-02-12 Toyota Motor Corp 内燃機関の排気浄化装置
JP6515481B2 (ja) * 2014-10-15 2019-05-22 株式会社デンソー オゾン供給装置
JP2017160333A (ja) 2016-03-09 2017-09-14 旭化成株式会社 ポリアセタールコポリマー、コポリマーの製造方法、およびポリアセタール樹脂組成物

Also Published As

Publication number Publication date
DE112018004733T5 (de) 2020-06-04
US20200173328A1 (en) 2020-06-04
WO2019039481A1 (ja) 2019-02-28
JP2019039322A (ja) 2019-03-14

Similar Documents

Publication Publication Date Title
JP4321332B2 (ja) 内燃機関の排気浄化装置
JP4453602B2 (ja) 内燃機関の排気浄化システム
JP4961336B2 (ja) エンジンの排気浄化装置
US10125654B2 (en) Exhaust control system for internal combustion engine
KR101843673B1 (ko) 백연 방출물을 억제하는 내연 기관용 제어 장치
JP4267414B2 (ja) 内燃機関の触媒制御装置
JP2019167918A (ja) エンジンの排気ガス状態推定方法及び触媒異常判定方法、並びに、エンジンの触媒異常判定装置
US20200173328A1 (en) Controller for exhaust gas purification system
JP5338344B2 (ja) 内燃機関の制御装置
JP4306722B2 (ja) 燃料噴射装置
JP2019167919A (ja) エンジンの排気ガス状態推定方法及び触媒異常判定方法、並びに、エンジンの触媒異常判定装置
JP2004324566A (ja) 内燃機関の排気浄化システム
JP2006274905A (ja) 内燃機関のＮＯｘ生成量推定装置
JP4062302B2 (ja) 内燃機関の触媒昇温システム
JP2019073980A (ja) 内燃機関の排気浄化装置
JP6953899B2 (ja) 排気浄化システムの制御装置
JP6958130B2 (ja) 内燃機関の診断装置
JP6179561B2 (ja) 排気浄化装置
JP4270156B2 (ja) 内燃機関排気浄化制御装置
JP5737171B2 (ja) 内燃機関の制御装置
JP4696655B2 (ja) 内燃機関の排気浄化システム
JP2020122401A (ja) 内燃機関の制御装置
JP2019039401A (ja) 内燃機関の排気浄化装置
JP2008157187A (ja) エンジンのｅｇｒ制御装置
JP6904167B2 (ja) 内燃機関の排気ガス流量測定装置

Legal Events

Date Code Title Description
A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20191004

A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20191004

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20200421

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20200504

R151 Written notification of patent or utility model registration

Ref document number: 6708185

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R151

LAPS Cancellation because of no payment of annual fees