JP6416781B2 - 内燃機関空気経路制御のためのレートベースモデル予測制御方法 - Google Patents
内燃機関空気経路制御のためのレートベースモデル予測制御方法 Download PDFInfo
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B47/00—Methods of operating engines involving adding non-fuel substances or anti-knock agents to combustion air, fuel, or fuel-air mixtures of engines
- F02B47/04—Methods of operating engines involving adding non-fuel substances or anti-knock agents to combustion air, fuel, or fuel-air mixtures of engines the substances being other than water or steam only
- F02B47/08—Methods of operating engines involving adding non-fuel substances or anti-knock agents to combustion air, fuel, or fuel-air mixtures of engines the substances being other than water or steam only the substances including exhaust gas
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/0025—Controlling engines characterised by use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
- F02D41/0047—Controlling exhaust gas recirculation [EGR]
- F02D41/0077—Control of the EGR valve or actuator, e.g. duty cycle, closed loop control of position
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/0002—Controlling intake air
- F02D41/0007—Controlling intake air for control of turbo-charged or super-charged engines
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/0025—Controlling engines characterised by use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
- F02D41/0047—Controlling exhaust gas recirculation [EGR]
- F02D41/005—Controlling exhaust gas recirculation [EGR] according to engine operating conditions
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/02—Circuit arrangements for generating control signals
- F02D41/14—Introducing closed-loop corrections
- F02D41/1401—Introducing closed-loop corrections characterised by the control or regulation method
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/02—Circuit arrangements for generating control signals
- F02D41/14—Introducing closed-loop corrections
- F02D41/1401—Introducing closed-loop corrections characterised by the control or regulation method
- F02D2041/1412—Introducing closed-loop corrections characterised by the control or regulation method using a predictive controller
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/02—Circuit arrangements for generating control signals
- F02D41/14—Introducing closed-loop corrections
- F02D41/1401—Introducing closed-loop corrections characterised by the control or regulation method
- F02D2041/1413—Controller structures or design
- F02D2041/1415—Controller structures or design using a state feedback or a state space representation
- F02D2041/1416—Observer
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/02—Circuit arrangements for generating control signals
- F02D41/14—Introducing closed-loop corrections
- F02D41/1401—Introducing closed-loop corrections characterised by the control or regulation method
- F02D2041/1433—Introducing closed-loop corrections characterised by the control or regulation method using a model or simulation of the system
- F02D2041/1434—Inverse model
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- 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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- 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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- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
- Feedback Control In General (AREA)
- Output Control And Ontrol Of Special Type Engine (AREA)
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Description
Hixaug≦Kkのとき、
uk+1=uk+Ts(Fixaug+Gi) (11)
・吸気圧及びEGR率についての設定値を指示する設定値マップ。
・ディーゼル機関モデルの低次元線形化に基づく予測モデル。
・吸気圧及び最大EGR流量の時間変化制約を行いながら、要求されたVGTリフト及び要求されたEGR流量を生成する明示的なモデル予測制御器。
・VGTデューティサイクル(閉度(percent closed))及びEGRバルブ位置(開度(percent open))を算出する部分的インバージョンブロック。
・吸気圧、ECU推定EGR率、及び質量空気流(MAF)の測定に基づくカルマンフィルタ推定。
・要求EGR流量と最大EGR流量との間のマージンに基づいてスロットルを閉じるEGRスロットル(閉度)制御器。
・検索されたマルコフ連鎖ベースのMPC領域選択工程は、明示的なモデル予測制御器の適切な領域のための尤度オーダーである。
もしHixaug≦Kkであれば、
uk+1=uk+Ts(Fixaug+Gi) (11)
ここで、i∈{1,‥‥,nr}は、i番目の多面体領域を示し、
i∈arg mini{maxj{Hijxaug‐Kij}}) (14)
ここで、jは、xaugが厳密に属するi番目の領域の定義において見出されるj番目の不等式に対応する。断続的な制約の実施を用いる指針のために、領域の約半分が、さらに取り除かれている。
Claims (11)
- 機関運転の間に可変ジオメトリタービン及びEGRバルブを制御する制御器を有した内燃機関を制御するための方法であって、該方法は、
機関運転パラメータを用いて非線形モデルを展開することと、
前記非線形モデルに基づいて、それぞれの機関運転ゾーンのための線形二次モデル予測制御器を展開することと、
前記線形二次モデルに基づいてレートベースの予測モデルを生成し、要求される機関タービンリフト及び要求されるEGR流量を生成するために、機関吸気マニホールド圧及びEGRバルブ流量に応じて前記制御器内の前記レートベースの予測モデルを用いることと、
生成された前記機関タービンリフト及び生成された前記EGR流量に基づき前記内燃機関の運転を制御することと、を含む方法。 - 機関速度レンジ及び燃料比レンジのための中央線形化ポイント周りの少なくとも1つの機関運転ゾーンを規定することをさらに含む、請求項1に記載の方法。
- 機関運転ゾーン内の中央線形化ポイントで前記非線形モデルを線形化することをさらに含む、請求項2に記載の方法。
- 前記非線形モデルに基づいて二次低減線形モデルを展開することをさらに含む、請求項3に記載の方法。
- 線形モデルの導関数として前記レートベースの予測モデルを生成することをさらに含む、請求項4に記載の方法。
- 区分的アフィン制御則の式、すなわち、
Hixaug≦Kkのとき、
uk+1=uk+Ts(Fixaug+Gi)
において、線形二次モデルとして線形モデルを生成することをさらに含む、請求項5に記載の方法。 - 機関運転の間に可変ジオメトリタービン及びEGRバルブを制御する制御器を有した内燃機関を制御するための方法であって、該方法は、
要求される機関タービンリフト及び要求されるEGR流量を生成するために、機関吸気マニホールド圧及びEGRバルブ流量に応じて前記制御器内のレートベースの予測モデルを用いることと、
前記レートベースの予測モデル制御器に部分的インバージョンを適用して、EGRバルブ流量信号をEGRバルブ位置デューティサイクル信号に変換し、且つ、タービンリフト信号をタービンリフトデューティサイクル信号に変換することと、
変換された前記EGRバルブ位置デューティサイクル信号及び変換された前記タービンリフトデューティサイクル信号に基づき前記内燃機関の運転を制御することと、
を含む、方法。 - 機関状態を推定することと、
推定された前記機関状態に基づいて前記区分的アフィン制御則の領域を決定することと、
制御レートを決定するために前記区分的アフィン制御則の選択された前記領域と関連したフィードバックゲインを適用することと、
1つの機関入力に適用される制御値を決定するために前記制御レートを積分することと、を含む、請求項6に記載の方法。 - 機関運転の間、生成された前記機関タービンリフト及び生成された前記EGR流量に基づき、前記制御器により前記可変ジオメトリタービン及び前記EGRバルブを制御することと、を含む、請求項1に記載の方法。
- 線形モデルの導関数として前記レートベースの予測モデルを生成することと、
区分的アフィン制御則の式、すなわち、
Hixaug≦Kkのとき、
uk+1=uk+Ts(Fixaug+Gi)
により、線形二次モデルとして線形モデルを生成することと、
機関状態を推定することと、
推定された前記機関状態に基づいて前記区分的アフィン制御則の領域を決定することと、
制御レートを決定するために前記区分的アフィン制御則の選択された前記領域と関連したフィードバックゲインを適用することと、
1つの機関入力に適用される制御値を決定するために前記制御レートを積分することと、をさらに含む、請求項1に記載の方法。
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US13/724,957 US9581080B2 (en) | 2012-12-21 | 2012-12-21 | Rate-based model predictive control method for internal combustion engine air path control |
US13/724,957 | 2012-12-21 | ||
PCT/US2013/076391 WO2014100334A1 (en) | 2012-12-21 | 2013-12-19 | Rate-based model predictive control method for internal combustion engine air path control |
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JP2016507691A JP2016507691A (ja) | 2016-03-10 |
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- 2013-12-19 WO PCT/US2013/076391 patent/WO2014100334A1/en active Application Filing
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EP2935846B1 (en) | 2021-12-01 |
CN105308296A (zh) | 2016-02-03 |
JP2016507691A (ja) | 2016-03-10 |
US20140174413A1 (en) | 2014-06-26 |
WO2014100334A1 (en) | 2014-06-26 |
CN105308296B (zh) | 2018-11-30 |
EP2935846A1 (en) | 2015-10-28 |
US9581080B2 (en) | 2017-02-28 |
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