JP2016023645A - 調整装置を備えた内燃機関 - Google Patents
調整装置を備えた内燃機関 Download PDFInfo
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- 238000002485 combustion reaction Methods 0.000 title claims abstract description 60
- 230000001105 regulatory effect Effects 0.000 title claims abstract description 8
- 239000000203 mixture Substances 0.000 claims abstract description 4
- 239000000446 fuel Substances 0.000 claims abstract description 3
- 239000007789 gas Substances 0.000 claims description 28
- 239000000567 combustion gas Substances 0.000 claims description 13
- 238000011144 upstream manufacturing Methods 0.000 claims description 6
- 230000002411 adverse Effects 0.000 claims description 5
- 238000002347 injection Methods 0.000 claims description 4
- 239000007924 injection Substances 0.000 claims description 4
- GNFTZDOKVXKIBK-UHFFFAOYSA-N 3-(2-methoxyethoxy)benzohydrazide Chemical compound COCCOC1=CC=CC(C(=O)NN)=C1 GNFTZDOKVXKIBK-UHFFFAOYSA-N 0.000 claims description 3
- 230000004044 response Effects 0.000 claims description 3
- 230000001052 transient effect Effects 0.000 abstract description 3
- 230000002349 favourable effect Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 6
- 230000006870 function Effects 0.000 description 5
- 230000008878 coupling Effects 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 4
- 238000005859 coupling reaction Methods 0.000 description 4
- 238000005259 measurement Methods 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000012885 constant function Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
Description
荷重変動に関する加速された適応制御が可能であること(基準出力Pd gの変動に対する内燃機関1の実動力出力Pgの加速された適応);
荷重変動によって、NOxの標的排気物値が実質的に早められて達成できること;
関数的相関性2にさらに容易に従うことができるため、荷重の変動中にNOxの排気物値は所望値にさらに十分に接近した状態に残ること。
1 内燃機関
2 関数的相関性
3 第1コンパレータ
4 第1PID調整手段
5 第1調整手段
6 第2PID調整手段
7 第2コンパレータ
8 給気圧調整手段
9 省発火調整モジュール
10 トラジェクトリジェネレータ
11 デッドタイム補償装置
12 別調整装置
λd 基準ラムダ値(燃焼空気比の基準値)
λ ラムダ値(燃焼空気比)
Pd g 基準動力出力
Pg 実動力出力
Pd,step g 基準出力の急激予設定
pim 実給気圧
pd im 給気圧基準値
t 時間
C 調整装置
D デッドタイム
ugas 燃焼ガス質量流
up 実給気圧(pim)に影響を及ぼす開ループ制御信号
y 内燃機関1及び/又は下流接続ユニットの実際のパラメータ
Claims (9)
- 調整装置(C)を備えた内燃機関(1)であって、
該調整装置によって調節が可能な燃焼空気比(λ)の空気−燃料混合物が前記内燃機関内で燃焼するものであり、該調整装置(C)は、
ラムダ値(λ)の調節を介して前記内燃機関(1)の基準動力出力(Pd g)に前記内燃機関(1)の実動力出力(Pg)を適応させるように適応されている動力出力調整回路と、
給気圧基準値(pd im)が前記内燃機関のそれぞれの基準動力出力(Pd g)のために設定できるように、給気圧によってNOx排気物の別パラメータとして給気圧に影響を及ぼすアクチュエータを稼動させるために、関数的相関性(2)を介して適応されているNOx排気物調整回路と、
を有していることを特徴とする内燃機関。 - 前記NOx排気物調整回路は、実給気圧(pim)を給気圧基準値(pd im)に適応させることができる給気圧調整手段(8)を有しており、該給気圧調整手段(8)はコンパレータ(3)とPID調整手段(4)との形態であるか、または、モデルベース調整手段の形態である、
請求項1記載の内燃機関(1)。 - 前記動力出力回路は調整手段(5)を有しており、該調整手段によって、燃焼ガス質量流(ugas)に影響を及ぼすアクチュエータ、好適にはポート噴射弁またはガスミキサのガス計測装置、が稼動可能であり、前記調整手段(5)は、コンパレータ(7)とPID調整手段(6)との形態であるか、または、モデルベース調整手段の形態である、
請求項1または2記載の内燃機関(1)。 - 前記動力出力調整回路にはスキップファイア調整モジュール(9)がさらに提供されており、該スキップファイア調整モジュールには基準動力出力(Pd g)が入力として供給でき、該スキップファイア調整モジュールは、燃焼ガスが存在しなければ内燃機関の選択されたシリンダ内では燃焼が発生しないように、前記燃焼ガス質量流(ugas)のための前記調整手段(5)を稼動するように適応されている、
請求項1から3のいずれか1項に記載の内燃機関(1)。 - 前記動力出力調整回路内の前記調整手段(5)は、別な実際のパラメータ(y)が該調整手段(5)にその入力として供給できるように適応されており、該調整手段(5)は、別な実際のパラメータ(y)に関係する制御パラメータ基準ラムダ値(λd)を制限しており、よって、実際のパラメータの制限値に到達したときには、実際のパラメータ(y)にさらなる悪影響を及ぼす方向では基準ラムダ値(λd)にさらなる変動が発生しない、
請求項1から4のいずれか1項に記載の内燃機関(1)。 - 前記動力出力調整回路と前記NOx排気物調整回路との上流側には、ユーザによって基準動力出力(Pd,step g)の非定常的な急激予設定を基準動力出力(Pd g)のために定常的な軌道に変換するように適応されたトラジェクトリジェネレータ(10)が設置されている、
請求項1から5のいずれか1項に記載の内燃機関(1)。 - 前記トラジェクトリジェネレータ(10)は、実動力出力(Pg)を入力として追加的に受領し、定常関数に従った基準動力出力(Pd g)の瞬間値と実動力出力(Pg)との偏差をモニターするように適応されており、過剰に大きな偏差が存在する場合には、基準動力出力(Pd g)の定常的なトラジェクトリは、実動力出力(Pg)を超える所定の値に制限される、
請求項6記載の内燃機関(1)。 - 設定可能なデッドタイム(D)が供給でき、時間(t)における基準動力出力(Pd g(t))、実動力出力(Pg(t))および実給気圧(Pim(t))を取得し、予測されたPd g(t+D)、Pg(t+D)およびpim(t+D)の形態で出力としてそれらを将来のt+Dに出力するように適応されているデッドタイム補償装置(11)が利用される、
請求項1から6のいずれか1項に記載の内燃機関(1)。 - 前記デッドタイム補償装置(11)の出力を入力として取得し、該入力に応じて基準ラムダ値(λd)を出力するように適応された別な調整手段(12)が利用される、
請求項8記載の内燃機関(1)。
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