JP4353157B2 - 2次空気供給装置および2次空気供給装置の異常検出方法 - Google Patents
2次空気供給装置および2次空気供給装置の異常検出方法 Download PDFInfo
- Publication number
- JP4353157B2 JP4353157B2 JP2005240377A JP2005240377A JP4353157B2 JP 4353157 B2 JP4353157 B2 JP 4353157B2 JP 2005240377 A JP2005240377 A JP 2005240377A JP 2005240377 A JP2005240377 A JP 2005240377A JP 4353157 B2 JP4353157 B2 JP 4353157B2
- Authority
- JP
- Japan
- Prior art keywords
- secondary air
- flow rate
- air supply
- exhaust
- air flow
- 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
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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
- F01N3/22—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
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
- F01N13/011—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00 having two or more purifying devices arranged in parallel
-
- 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
- F01N3/225—Electric control of additional air supply
-
- 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
- F01N3/24—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 constructional aspects of converting apparatus
- F01N3/30—Arrangements for supply of additional air
- F01N3/32—Arrangements for supply of additional air using air pump
-
- 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
- F01N2550/14—Systems for adding secondary air into exhaust
-
- 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)
- Chemical Kinetics & Catalysis (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Exhaust Gas After Treatment (AREA)
Description
2,3 2次空気供給部
21,31 2次空気供給ポンプ
22,32 圧力センサ
23,33 ASV
24,34 リード弁
25,35 2次空気供給配管
4 内燃機関
5,6 排気経路
51,61 エキゾーストマニホールド
52,62 排気浄化装置
7 制御装置
71 入出力部
72 処理部
73 記憶部
74 AI流量取得部
75 有害物質量算出部
76 異常検出部
77 所定AI流量算出部
Claims (4)
- 少なくとも1以上の気筒からなる複数の気筒群ごとに独立して排気経路を備える内燃機関の当該各排気経路のうち、当該各排気経路に備えられた排気浄化装置よりも上流側に2次空気をそれぞれ供給する2次空気供給装置において、
前記各排気経路にそれぞれ供給される2次空気の2次空気流量を取得する2次空気流量取得手段と、
前記取得された各2次空気流量に応じて各排出経路から排出される排気ガス中に含まれる有害物質量を算出する有害物質量算出手段と、
前記算出された各有害物質量を合わせた総有害物質量が所定総有害物質量以上である際に、前記2次空気供給装置の異常を検出する異常検出手段と、
を備えることを特徴とする2次空気供給装置。 - 少なくとも1以上の気筒からなる複数の気筒群ごとに独立して排気経路を備える内燃機関の当該各排気経路のうち、当該各排気経路に備えられた排気浄化装置よりも上流側に2次空気をそれぞれ供給する2次空気供給装置において、
前記各排気経路にそれぞれ供給される2次空気の2次空気流量を取得する2次空気流量取得手段と、
前記取得された各2次空気流量のうち一方の2次空気流量に基づいて、前記各排出経路から排出される排気ガス中に含まれる有害物質量を合わせた総有害物質量が所定総有害物質量となる他方の所定2次空気流量を算出する所定2次空気流量算出手段と、
前記取得された他方の2次空気流量が前記算出された他方の所定2次空気流量以下である際に、前記2次空気供給装置の異常を検出する異常検出手段と、
を備えることを特徴とする2次空気供給装置。 - 少なくとも1以上の気筒からなる複数の気筒群ごとに独立して排気経路を備える内燃機関の当該各排気経路のうち、当該各排気経路に備えられた排気浄化装置よりも上流側に2次空気をそれぞれ供給する2次空気供給装置の異常検出方法において、
前記各排気経路にそれぞれ供給される2次空気の2次空気流量を取得する手順と、
前記取得された各2次空気流量に応じて各排出経路から排出される排気ガス中に含まれる有害物質量を算出する手順と、
前記算出された各有害物質量を合わせた総有害物質量が所定総有害物質量以上である際に、異常を検出する手順と、
を含むことを特徴とする2次空気供給装置の異常検出方法。 - 少なくとも1以上の気筒からなる複数の気筒群ごとに独立して排気経路を備える内燃機関の当該各排気経路のうち、当該各排気経路に備えられた排気浄化装置よりも上流側に2次空気をそれぞれ供給する2次空気供給装置の異常検出方法において、
前記各排気経路にそれぞれ供給される2次空気の2次空気流量を取得する手順と、
前記取得された各2次空気流量のうち一方の2次空気流量に基づいて、前記各排出経路から排出される排気ガス中に含まれる有害物質量を合わせた総有害物質量が所定総有害物質量となる他方の所定2次空気流量を算出する手順と、
前記取得された他方の2次空気流量が前記算出された他方の所定2次空気流量以下である際に、異常を検出する手順と、
を含むことを特徴とする2次空気供給装置の異常検出方法。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005240377A JP4353157B2 (ja) | 2005-08-22 | 2005-08-22 | 2次空気供給装置および2次空気供給装置の異常検出方法 |
US11/504,057 US7770382B2 (en) | 2005-08-22 | 2006-08-15 | Secondary air supply system and abnormality detection method for secondary air supply system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005240377A JP4353157B2 (ja) | 2005-08-22 | 2005-08-22 | 2次空気供給装置および2次空気供給装置の異常検出方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2007056706A JP2007056706A (ja) | 2007-03-08 |
JP4353157B2 true JP4353157B2 (ja) | 2009-10-28 |
Family
ID=37766228
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2005240377A Expired - Fee Related JP4353157B2 (ja) | 2005-08-22 | 2005-08-22 | 2次空気供給装置および2次空気供給装置の異常検出方法 |
Country Status (2)
Country | Link |
---|---|
US (1) | US7770382B2 (ja) |
JP (1) | JP4353157B2 (ja) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8857179B2 (en) * | 2011-03-23 | 2014-10-14 | Chrysler Group Llc | Secondary air system with variable speed air pump and multi-position gated check valve |
JP5464173B2 (ja) * | 2011-05-27 | 2014-04-09 | トヨタ自動車株式会社 | 内燃機関の二次空気供給装置 |
US9234449B2 (en) * | 2012-10-19 | 2016-01-12 | GM Global Technology Operations LLC | Leak and blockage diagnostic systems and methods |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5924247B2 (ja) * | 1977-01-28 | 1984-06-08 | 株式会社日本自動車部品総合研究所 | 内燃機関の排気ガス浄化装置 |
JPH06146867A (ja) | 1992-11-13 | 1994-05-27 | Toyota Motor Corp | 二次空気供給機構の異常検出装置 |
JPH07167747A (ja) * | 1993-12-14 | 1995-07-04 | Hitachi Ltd | 内燃機関の二次空気供給システムの故障診断装置 |
JP4479139B2 (ja) | 2001-09-14 | 2010-06-09 | トヨタ自動車株式会社 | 2次空気供給装置 |
JP4122825B2 (ja) | 2002-04-25 | 2008-07-23 | トヨタ自動車株式会社 | 2次空気供給システム |
JP4367749B2 (ja) | 2003-06-18 | 2009-11-18 | 本田技研工業株式会社 | 排気二次エア供給装置の故障検知装置 |
US7140177B2 (en) * | 2003-12-04 | 2006-11-28 | Toyota Jidosha Kabushiki Kaisha | Secondary air supply system and abnormality diagnosis method of secondary air supply system |
-
2005
- 2005-08-22 JP JP2005240377A patent/JP4353157B2/ja not_active Expired - Fee Related
-
2006
- 2006-08-15 US US11/504,057 patent/US7770382B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
US7770382B2 (en) | 2010-08-10 |
JP2007056706A (ja) | 2007-03-08 |
US20070039312A1 (en) | 2007-02-22 |
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