JP4389831B2 - 筒内直接噴射式火花点火内燃機関の制御装置 - Google Patents
筒内直接噴射式火花点火内燃機関の制御装置 Download PDFInfo
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- JP4389831B2 JP4389831B2 JP2005105567A JP2005105567A JP4389831B2 JP 4389831 B2 JP4389831 B2 JP 4389831B2 JP 2005105567 A JP2005105567 A JP 2005105567A JP 2005105567 A JP2005105567 A JP 2005105567A JP 4389831 B2 JP4389831 B2 JP 4389831B2
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- Prior art keywords
- injection
- fuel
- internal combustion
- combustion engine
- timing
- Prior art date
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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
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- Combustion Methods Of Internal-Combustion Engines (AREA)
- Fuel-Injection Apparatus (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
Description
10…触媒コンバータ
13…排気温度センサ
14…点火プラグ
15…燃料噴射弁
25…コントロールユニット
Claims (5)
- 筒内に直接燃料を噴射する燃料噴射弁を備えるとともに、点火プラグを備えてなる筒内直接噴射式火花点火内燃機関の制御装置において、排気系の触媒コンバータの早期昇温が要求される内燃機関の冷間始動時に、超リタード燃焼として、点火時期を圧縮上死点後に設定するとともに、燃料噴射を2回に分割して、点火時期において点火プラグ近傍に噴霧が到達するように圧縮行程中に1回目の燃料噴射を行い、点火時期前でかつ圧縮上死点後の膨張行程中に、筒内の乱れを強化する2回目の燃料噴射を行う一方、2回目の噴射量に対する1回目の噴射量の割合を、負荷が高いほど大とすることを特徴とする筒内直接噴射式火花点火内燃機関の制御装置。
- 1回目の噴射量が負荷に伴って増減変化するときに、噴射開始時期に比べて噴射終了時期が相対的に大きく変化することを特徴とする請求項1に記載の筒内直接噴射式火花点火内燃機関の制御装置。
- 1回目の噴射の噴射開始時期は、負荷変化に対し実質的に一定であることを特徴とする請求項2に記載の筒内直接噴射式火花点火内燃機関の制御装置。
- 超リタード燃焼における空燃比は、理論空燃比もしくは若干リーンであることを特徴とする請求項1〜3のいずれかに記載の筒内直接噴射式火花点火内燃機関の制御装置。
- 超リタード燃焼における点火時期は、圧縮上死点後15°〜30°CAであることを特徴とする請求項1〜4のいずれかに記載の筒内直接噴射式火花点火内燃機関の制御装置。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005105567A JP4389831B2 (ja) | 2005-04-01 | 2005-04-01 | 筒内直接噴射式火花点火内燃機関の制御装置 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005105567A JP4389831B2 (ja) | 2005-04-01 | 2005-04-01 | 筒内直接噴射式火花点火内燃機関の制御装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2006283679A JP2006283679A (ja) | 2006-10-19 |
JP4389831B2 true JP4389831B2 (ja) | 2009-12-24 |
Family
ID=37405863
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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JP2005105567A Expired - Fee Related JP4389831B2 (ja) | 2005-04-01 | 2005-04-01 | 筒内直接噴射式火花点火内燃機関の制御装置 |
Country Status (1)
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JP (1) | JP4389831B2 (ja) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5195383B2 (ja) * | 2008-12-12 | 2013-05-08 | 日産自動車株式会社 | 筒内直接噴射式火花点火内燃機関 |
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2005
- 2005-04-01 JP JP2005105567A patent/JP4389831B2/ja not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
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JP2006283679A (ja) | 2006-10-19 |
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