Transition Quality Between Spark Ignition and Homogeneous Charge Compression Ignition Modes Using Two Different VVT Strategies : Cam Profile Switching and Phasing Strategy vs Fully Variable Valve Train Strategy
- 提供方法
- 本サイト上にてダウンロード・閲覧可
- 形態
- 価格
- 一般価格(税込)：￥1,100 会員価格(税込)：￥880
- 文献番号
- 20055406
- 文献・情報種別
- 学術講演会予稿集（春）
No.33-05
- 掲載ページ
- 19-24(Total 6 p)
- 発行年月
- 2005年 5月
- 出版社
- (公社)自動車技術会
- 言語
- 英語
書誌事項
| 著者（英） | 1) N.Milovanovic, 2) D.W.Blundell, 3) J.W.G.Turner |
|---|---|
| 勤務先（英） | 1) Lotus Engineering, 2) Lotus Engineering, 3) Lotus Engineering |
| 抄録（英） | In a future 'hybrid' mode internal combustion engine capable of running in spark ignition (SI) and Homogeneous Charge Compression Ignition (HCCI) modes, transition between these modes, during changes in engine load and speed, will play a crucial role. The valve train and engine management system must provide a fast and smooth transition between these two very different combustion modes keeping all relevant engine and combustion parameters in an acceptable range. To accommodate such transition a valve event (comprising duration, timing and lift) has to be variable, which consequently leads to high demands on the valve train and therefore a need for a high degree of flexibility. Two valve train concepts, one a Cam Profile Switching (CPS) and phaser system, and the other Fully Variable (Lotus AVTTM) are presented. The use of both concepts for transitions from SI to HCCI to SI are experimentally investigated on a single cylinder research engine fuelled with commercially available gasoline fuel. Experimental results obtained together with benefits and obstacles in using each of these strategies are presented and discussed. Key words: HCCI, Transition, Fully Variable Valve Train, CPS and Phasers 翻訳 |
