JP2020537089A - 過渡運転モードにおける内燃エンジンの制御 - Google Patents
過渡運転モードにおける内燃エンジンの制御 Download PDFInfo
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- F02D—CONTROLLING COMBUSTION ENGINES
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- F02D13/0223—Variable control of the intake valves only
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- F02M25/025—Adding water
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- F02M25/00—Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture
- F02M25/022—Adding fuel and water emulsion, water or steam
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- F02P15/00—Electric spark ignition having characteristics not provided for in, or of interest apart from, groups F02P1/00 - F02P13/00 and combined with layout of ignition circuits
- F02P15/08—Electric spark ignition having characteristics not provided for in, or of interest apart from, groups F02P1/00 - F02P13/00 and combined with layout of ignition circuits having multiple-spark ignition, i.e. ignition occurring simultaneously at different places in one engine cylinder or in two or more separate engine cylinders
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- F02P5/00—Advancing or retarding ignition; Control therefor
- F02P5/04—Advancing or retarding ignition; Control therefor automatically, as a function of the working conditions of the engine or vehicle or of the atmospheric conditions
- F02P5/145—Advancing or retarding ignition; Control therefor automatically, as a function of the working conditions of the engine or vehicle or of the atmospheric conditions using electrical means
- F02P5/15—Digital data processing
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- F02B75/00—Other engines
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Abstract
Description
2 ピストン
3 接続ロッド
4 吸気ポート
5 排気ポート
6 吸気弁
7 排気弁
8 燃料噴射器
9 不燃性流体/水噴射器
10 吸気弁フェーズ調整アクチュエータ
11 排気弁フェーズ調整アクチュエータ
12 火花点火
12a 火花プラグ
12b 点火コイル
13 コントローラ
14 気筒壁
15 (水)タンク
16 (水)ポンプ
17 (水)パイプ
100 気筒
101(水)噴射デバイス
ISFC 表示された特定の燃料消費量
GTDC ガス交換上死点
ITDC 着火上死点
BDC 下死点
IV 吸気弁
EV 排気弁
IVA 吸気弁角度
EVA 排気弁角度
IVC 吸気弁閉鎖
IVL 吸気弁リフト
WI 水噴射
PWI ポート水噴射
DWI 直接水噴射
TOM 過渡運転モード
Claims (16)
- 少なくとも1つの気筒(100)と、内燃エンジン内に不燃性流体を噴射するように構成された少なくとも1つの不燃性流体噴射器(9)と、少なくとも1つのコントローラ(13)とを有する前記内燃エンジンを制御するための方法であって、
前記内燃エンジンが過渡運転モードで運転している場合に、前記不燃性流体を前記内燃エンジンに噴射するように噴射デバイス(9)を制御することによって特徴付けられた、方法。 - 前記過渡運転モードの開始および持続時間を検出および/または予測するステップと、前記過渡運転モードの開始が判定された場合、および/または、前記過渡運転モードの前記予測された開始時に、不燃性流体を噴射するように前記噴射器(9)を作動させるステップとによって特徴付けられた、請求項1に記載の方法。
- 弁開放/閉鎖タイミングを変化させるように構成された前記内燃エンジンの可変動弁機構を制御することによって特徴付けられ、
前記可変動弁機構は、吸気弁閉鎖タイミングを第1のクランク角度から第2のクランク角度に切り替えるように構成され、前記第2のクランク角度は、前記第1のクランク角度よりも大きい、または、
前記可変動弁機構は、前記吸気弁閉鎖タイミングを第3のクランク角度から第4のクランク角度に切り替えるように構成され、前記第4のクランク角度は、前記第3のクランク角度よりも小さい、請求項1または2に記載の方法。 - 内部残留ガスの量を、第1の残留ガス値から、第2の残留ガス値に変化させるように構成された可変動弁機構を制御することによって特徴付けられ、前記第2の残留ガス値は、前記第1の残留ガス値よりも大きい、請求項1から3のいずれか1項に記載の方法。
- 早期または後期の吸気弁閉鎖タイミングから、または、早期または後期の吸気弁閉鎖タイミングへ切り替えられる切替期間中に水を噴射することによって特徴付けられた、請求項1から4のいずれか1項に記載の方法。
- 前記過渡運転モードの第1の燃焼サイクルから、前記過渡運転モードの後続する燃焼サイクルへ、噴射される不燃性流体の量を減少させることによって特徴付けられた、請求項1から5のいずれか1項に記載の方法。
- 前記過渡運転モードの前記第1の燃焼サイクルから、前記過渡運転モードの後続する燃焼サイクルへ、不燃性流体の噴射期間を減少させることによって特徴付けられた、請求項1から6のいずれか1項に記載の方法。
- 前記コントローラ(13)が、前記噴射される不燃性流体の総量を分割し、それを複数の多数の噴射によって噴射することを特徴とする、請求項1から7のいずれか1項に記載の方法。
- 前記コントローラ(13)が、前記過渡運転モードの前記第1の燃焼サイクルから、前記過渡運転モードの後続する燃焼サイクルへ、前記不燃性流体の多数の噴射の数を減少させることを特徴とする、請求項8に記載の方法。
- 前記コントローラ(13)が、前記過渡運転モードの前記第1の燃焼サイクルから、前記過渡運転モードの後続する燃焼サイクルへ、前記不燃性流体の多数の噴射の各噴射の前記噴射期間を減少させることを特徴とする、請求項8または9に記載の方法。
- 不燃性流体の噴射が実行される場合、火花点火(12)の点火エネルギを、あらかじめ定義された第1の点火エネルギ値から、あらかじめ定義された第2の点火エネルギ値に増加させることによって特徴付けられた、請求項1から10のいずれか1項に記載の方法。
- 前記火花点火(12)の前記あらかじめ定義された第2の点火エネルギ値を、前記過渡運転モードの前記第1の燃焼サイクルから、前記過渡運転モードの後続する燃焼サイクルへ、減少させることによって特徴付けられた、請求項11に記載の方法。
- あらかじめ定義されたより長い火花持続時間を提供することによって、または、あらかじめ定義された数の多数の火花点火を提供することによって、前記火花点火(12)の、前記あらかじめ定義された点火エネルギを増加させることによって特徴付けられた、請求項11または12に記載の方法。
- 少なくとも1つの気筒(100)と、不燃性流体を内燃エンジンに噴射するように構成された少なくとも1つの不燃性流体噴射器(9)とを備えた前記内燃エンジンのための制御デバイスであって、請求項1から13のうちいずれか1項にしたがう方法を実行するように構成された、制御デバイス。
- 請求項14に記載の制御デバイスを含む内燃エンジン。
- コンピュータによって実行された場合、請求項1から13のうちの少なくとも1項にしたがう方法を前記コンピュータに実行させる命令を備えたメモリに記憶可能なコンピュータプログラム製品。
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DE102018201150.8 | 2018-01-25 | ||
DE102018201150.8A DE102018201150A1 (de) | 2018-01-25 | 2018-01-25 | Steuerung einer Brennkraftmaschine in einer Übergangsbetriebsart |
PCT/JP2019/002366 WO2019146727A1 (en) | 2018-01-25 | 2019-01-24 | Control of an internal combustion engine in transient operating mode |
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US20210172394A1 (en) | 2021-06-10 |
US11143122B2 (en) | 2021-10-12 |
DE102018201150A1 (de) | 2019-07-25 |
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