JP7718589B2 - 三元触媒の酸素ストレージ量制御方法および装置 - Google Patents

三元触媒の酸素ストレージ量制御方法および装置

Info

Publication number
JP7718589B2
JP7718589B2 JP2024521485A JP2024521485A JP7718589B2 JP 7718589 B2 JP7718589 B2 JP 7718589B2 JP 2024521485 A JP2024521485 A JP 2024521485A JP 2024521485 A JP2024521485 A JP 2024521485A JP 7718589 B2 JP7718589 B2 JP 7718589B2
Authority
JP
Japan
Prior art keywords
oxygen storage
storage amount
way catalyst
air
fuel ratio
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.)
Active
Application number
JP2024521485A
Other languages
English (en)
Japanese (ja)
Other versions
JPWO2023223504A1 (https=
Inventor
大紀 西
琳 柳
桂 渡邊
毅 露木
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.)
Nissan Motor Co Ltd
Original Assignee
Nissan Motor Co Ltd
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 Nissan Motor Co Ltd filed Critical Nissan Motor Co Ltd
Publication of JPWO2023223504A1 publication Critical patent/JPWO2023223504A1/ja
Application granted granted Critical
Publication of JP7718589B2 publication Critical patent/JP7718589B2/ja
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • F01N3/08—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
    • F01N3/101—Three-way 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
    • 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
    • F01N2560/025—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics the means being an exhaust gas sensor for measuring or detecting O2, e.g. lambda sensors
    • 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
    • F01N2900/16—Parameters used for exhaust control or diagnosing said parameters being related to the exhaust apparatus, e.g. particulate filter or catalyst
    • F01N2900/1624—Catalyst oxygen storage capacity
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Toxicology (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
  • Exhaust Gas After Treatment (AREA)
JP2024521485A 2022-05-19 2022-05-19 三元触媒の酸素ストレージ量制御方法および装置 Active JP7718589B2 (ja)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2022/020843 WO2023223504A1 (ja) 2022-05-19 2022-05-19 三元触媒の酸素ストレージ量制御方法および装置

Publications (2)

Publication Number Publication Date
JPWO2023223504A1 JPWO2023223504A1 (https=) 2023-11-23
JP7718589B2 true JP7718589B2 (ja) 2025-08-05

Family

ID=88834931

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2024521485A Active JP7718589B2 (ja) 2022-05-19 2022-05-19 三元触媒の酸素ストレージ量制御方法および装置

Country Status (4)

Country Link
EP (1) EP4528086A1 (https=)
JP (1) JP7718589B2 (https=)
CN (1) CN119213205A (https=)
WO (1) WO2023223504A1 (https=)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008255973A (ja) 2007-04-09 2008-10-23 Mitsubishi Motors Corp 内燃機関の排気浄化装置
JP2010169020A (ja) 2009-01-23 2010-08-05 Nissan Motor Co Ltd 排気ガス浄化装置
WO2012086078A1 (ja) 2010-12-24 2012-06-28 トヨタ自動車株式会社 内燃機関の制御装置
WO2023238361A1 (ja) 2022-06-10 2023-12-14 日産自動車株式会社 内燃機関の制御方法および制御装置

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2843879B2 (ja) * 1993-01-22 1999-01-06 本田技研工業株式会社 内燃エンジンの触媒劣化検出装置
JP3939026B2 (ja) 1998-06-17 2007-06-27 株式会社日立製作所 三元触媒の酸素ストレージ量制御装置
JP6094438B2 (ja) * 2013-09-27 2017-03-15 トヨタ自動車株式会社 内燃機関の制御装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008255973A (ja) 2007-04-09 2008-10-23 Mitsubishi Motors Corp 内燃機関の排気浄化装置
JP2010169020A (ja) 2009-01-23 2010-08-05 Nissan Motor Co Ltd 排気ガス浄化装置
WO2012086078A1 (ja) 2010-12-24 2012-06-28 トヨタ自動車株式会社 内燃機関の制御装置
WO2023238361A1 (ja) 2022-06-10 2023-12-14 日産自動車株式会社 内燃機関の制御方法および制御装置

Also Published As

Publication number Publication date
CN119213205A (zh) 2024-12-27
WO2023223504A1 (ja) 2023-11-23
EP4528086A1 (en) 2025-03-26
JPWO2023223504A1 (https=) 2023-11-23

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