CN115244283B - 催化剂劣化诊断装置 - Google Patents

催化剂劣化诊断装置 Download PDF

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Publication number
CN115244283B
CN115244283B CN202080097947.2A CN202080097947A CN115244283B CN 115244283 B CN115244283 B CN 115244283B CN 202080097947 A CN202080097947 A CN 202080097947A CN 115244283 B CN115244283 B CN 115244283B
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China
Prior art keywords
catalyst
fuel ratio
air
oxygen concentration
concentration sensor
Prior art date
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Active
Application number
CN202080097947.2A
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English (en)
Chinese (zh)
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CN115244283A (zh
Inventor
藤田晋二
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.)
Honda Motor Co Ltd
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Honda Motor Co Ltd
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Publication date
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Publication of CN115244283A publication Critical patent/CN115244283A/zh
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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
    • 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

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Exhaust Gas After Treatment (AREA)
CN202080097947.2A 2020-03-05 2020-03-05 催化剂劣化诊断装置 Active CN115244283B (zh)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2020/009530 WO2021176671A1 (ja) 2020-03-05 2020-03-05 触媒劣化診断装置

Publications (2)

Publication Number Publication Date
CN115244283A CN115244283A (zh) 2022-10-25
CN115244283B true CN115244283B (zh) 2023-08-08

Family

ID=77613303

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202080097947.2A Active CN115244283B (zh) 2020-03-05 2020-03-05 催化剂劣化诊断装置

Country Status (4)

Country Link
JP (1) JP7372440B2 (ja)
CN (1) CN115244283B (ja)
BR (1) BR112022017146A2 (ja)
WO (1) WO2021176671A1 (ja)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114962034B (zh) * 2022-06-08 2023-09-22 东风汽车集团股份有限公司 混动车型发动机宽域氧传感器劣化诊断方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5577382A (en) * 1994-06-30 1996-11-26 Toyota Jidosha Kabushiki Kaisha Exhaust purification device of internal combustion engine
CN101042093A (zh) * 2006-03-24 2007-09-26 本田技研工业株式会社 催化剂劣化检测装置
JP2007309244A (ja) * 2006-05-19 2007-11-29 Mitsubishi Motors Corp 触媒温度推定装置
JP2010159701A (ja) * 2009-01-08 2010-07-22 Toyota Motor Corp 触媒劣化診断装置
JP2013100750A (ja) * 2011-11-08 2013-05-23 Mitsubishi Electric Corp 内燃機関の制御装置および触媒コンバータの劣化診断方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4411755B2 (ja) * 2000-07-17 2010-02-10 三菱自動車工業株式会社 排気浄化触媒の劣化状態診断装置
JP2005098205A (ja) * 2003-09-25 2005-04-14 Toyota Motor Corp 内燃機関の空燃比制御装置
JP4513714B2 (ja) * 2005-10-21 2010-07-28 トヨタ自動車株式会社 触媒劣化検出方法
WO2011111156A1 (ja) * 2010-03-09 2011-09-15 トヨタ自動車 株式会社 触媒劣化検出装置
JP6611397B2 (ja) * 2016-03-29 2019-11-27 本田技研工業株式会社 触媒診断装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5577382A (en) * 1994-06-30 1996-11-26 Toyota Jidosha Kabushiki Kaisha Exhaust purification device of internal combustion engine
CN101042093A (zh) * 2006-03-24 2007-09-26 本田技研工业株式会社 催化剂劣化检测装置
JP2007309244A (ja) * 2006-05-19 2007-11-29 Mitsubishi Motors Corp 触媒温度推定装置
JP2010159701A (ja) * 2009-01-08 2010-07-22 Toyota Motor Corp 触媒劣化診断装置
JP2013100750A (ja) * 2011-11-08 2013-05-23 Mitsubishi Electric Corp 内燃機関の制御装置および触媒コンバータの劣化診断方法

Also Published As

Publication number Publication date
JP7372440B2 (ja) 2023-10-31
BR112022017146A2 (pt) 2022-10-11
CN115244283A (zh) 2022-10-25
WO2021176671A1 (ja) 2021-09-10
JPWO2021176671A1 (ja) 2021-09-10

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