JP4432745B2 - 内燃機関の排気浄化装置 - Google Patents
内燃機関の排気浄化装置 Download PDFInfo
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- JP4432745B2 JP4432745B2 JP2004335482A JP2004335482A JP4432745B2 JP 4432745 B2 JP4432745 B2 JP 4432745B2 JP 2004335482 A JP2004335482 A JP 2004335482A JP 2004335482 A JP2004335482 A JP 2004335482A JP 4432745 B2 JP4432745 B2 JP 4432745B2
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- temperature
- fuel ratio
- air
- internal combustion
- combustion engine
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- 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
-
- 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
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- Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
- Exhaust Gas After Treatment (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
Description
(1)内燃機関の排気通路に設けられる排気浄化手段と、上記内燃機関への吸入空気量を調整する吸入空気量調整手段と、上記内燃機関の運転状態に応じて吸入空気量を設定する吸入空気量設定手段と、上記吸入空気量に対し目標空燃比を設定する目標空燃比設定手段と、上記目標空燃比に対し燃料噴射量を設定する燃料噴射量設定手段と、上記設定された燃料噴射量をメイン噴射とポスト噴射に分割して上記排気浄化手段を昇温させる燃料噴射制御手段と、上記排気浄化手段の温度または近傍の温度を検出する温度検出手段と、を備えた内燃機関の排気浄化装置において、上記目標空燃比設定手段は、上記排気浄化手段の昇温時に上記温度検出手段の検出出力が所定温度範囲になるように目標空燃比を変更する昇温空燃比変更手段を備え、上記燃料噴射制御手段は、変更された目標空燃比に応じて燃料噴射量を内燃機関に要求されたトルクに対応してメイン噴射量を設定することを特徴とする。
Claims (2)
- 内燃機関の排気通路に設けられる排気浄化手段と、
上記内燃機関への吸入空気量を調整する吸入空気量調整手段と、
上記内燃機関の運転状態に応じて吸入空気量を設定する吸入空気量設定手段と、
上記吸入空気量に対し目標空燃比を設定する目標空燃比設定手段と、
上記目標空燃比に対し燃料噴射量を設定する燃料噴射量設定手段と、
上記設定された燃料噴射量をメイン噴射とポスト噴射に分割して上記排気浄化手段を昇温させる燃料噴射制御手段と、
上記排気浄化手段の温度または近傍の温度を検出する温度検出手段と、
を備えた内燃機関の排気浄化装置において、
上記目標空燃比設定手段は、上記排気浄化手段の昇温時に上記温度検出手段の検出出力が所定温度範囲になるように目標空燃比を変更する昇温空燃比変更手段を備え、
上記燃料噴射制御手段は、変更された目標空燃比に応じて燃料噴射量を設定すると共に内燃機関に要求されたトルクに対応してメイン噴射量を設定することを特徴とする内燃機関の排気浄化装置。 - 上記昇温空燃比変更手段は、上記排気浄化手段の温度を昇温させる第1空燃比と、低下させる第2空燃比を備えたことを特徴とする請求項1記載の内燃機関の排気浄化装置。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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JP2004335482A JP4432745B2 (ja) | 2004-11-19 | 2004-11-19 | 内燃機関の排気浄化装置 |
Applications Claiming Priority (1)
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JP2004335482A JP4432745B2 (ja) | 2004-11-19 | 2004-11-19 | 内燃機関の排気浄化装置 |
Publications (2)
Publication Number | Publication Date |
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JP2006144659A JP2006144659A (ja) | 2006-06-08 |
JP4432745B2 true JP4432745B2 (ja) | 2010-03-17 |
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Application Number | Title | Priority Date | Filing Date |
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JP2004335482A Active JP4432745B2 (ja) | 2004-11-19 | 2004-11-19 | 内燃機関の排気浄化装置 |
Country Status (1)
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JP (1) | JP4432745B2 (ja) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008133726A (ja) * | 2006-11-27 | 2008-06-12 | Toyota Motor Corp | アルコール燃料内燃機関 |
JP5625489B2 (ja) * | 2010-05-25 | 2014-11-19 | いすゞ自動車株式会社 | 高地における排ガス浄化システム |
KR101326829B1 (ko) * | 2011-10-13 | 2013-11-11 | 현대자동차주식회사 | 매연 필터 재생 시스템 및 방법 |
JP6520410B2 (ja) * | 2015-05-29 | 2019-05-29 | 三菱自動車工業株式会社 | エンジンの制御装置 |
JP6520409B2 (ja) * | 2015-05-29 | 2019-05-29 | 三菱自動車工業株式会社 | エンジンの制御装置 |
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- 2004-11-19 JP JP2004335482A patent/JP4432745B2/ja active Active
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