JP4379232B2 - 排気ガス浄化装置 - Google Patents
排気ガス浄化装置 Download PDFInfo
- Publication number
- JP4379232B2 JP4379232B2 JP2004202666A JP2004202666A JP4379232B2 JP 4379232 B2 JP4379232 B2 JP 4379232B2 JP 2004202666 A JP2004202666 A JP 2004202666A JP 2004202666 A JP2004202666 A JP 2004202666A JP 4379232 B2 JP4379232 B2 JP 4379232B2
- Authority
- JP
- Japan
- Prior art keywords
- catalyst
- poisoning
- exhaust gas
- temperature
- exhaust
- 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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- Exhaust Gas After Treatment (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
Description
先ず、ステップP1で三元触媒コンバータ12における触媒がCO被毒検出範囲内か否かを判断する。即ち、排温センサ13により触媒の温度が例えば600〜800℃(好ましくは700℃前後)の温度範囲にあるか否かを判断するのである。
Claims (1)
- 酸素ストレージ機能を備えた触媒を有する排気ガス浄化装置において、
前記触媒の下流に設けられ排気ガスの状態を検出する排気ガス状態検出手段と、
前記触媒の温度を検出する触媒温度検出手段と、
前記排気ガスの状態に基づいて触媒のCO被毒を判定するCO被毒判定手段と、
前記触媒の温度に基づいてCO被毒判定手段の判定閾値を変更する閾値変更手段と、
前記触媒のCO被毒を判定したとき、触媒に過剰酸素を供給する酸素供給手段と、
を備えたことを特徴とする排気ガス浄化装置。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004202666A JP4379232B2 (ja) | 2004-07-09 | 2004-07-09 | 排気ガス浄化装置 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004202666A JP4379232B2 (ja) | 2004-07-09 | 2004-07-09 | 排気ガス浄化装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2006022754A JP2006022754A (ja) | 2006-01-26 |
JP4379232B2 true JP4379232B2 (ja) | 2009-12-09 |
Family
ID=35796207
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2004202666A Expired - Fee Related JP4379232B2 (ja) | 2004-07-09 | 2004-07-09 | 排気ガス浄化装置 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP4379232B2 (ja) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4832326B2 (ja) * | 2007-02-06 | 2011-12-07 | Udトラックス株式会社 | エンジンの排気浄化装置 |
JP5776773B2 (ja) | 2011-07-15 | 2015-09-09 | トヨタ自動車株式会社 | 内燃機関の排気浄化装置 |
US9534552B2 (en) | 2012-08-28 | 2017-01-03 | Toyota Jidosha Kabushiki Kaisha | Exhaust purification system of spark ignition type internal combustion engine |
-
2004
- 2004-07-09 JP JP2004202666A patent/JP4379232B2/ja not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
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JP2006022754A (ja) | 2006-01-26 |
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