JPWO2019049878A1 - エンジン制御システム - Google Patents
エンジン制御システム Download PDFInfo
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- JPWO2019049878A1 JPWO2019049878A1 JP2019540974A JP2019540974A JPWO2019049878A1 JP WO2019049878 A1 JPWO2019049878 A1 JP WO2019049878A1 JP 2019540974 A JP2019540974 A JP 2019540974A JP 2019540974 A JP2019540974 A JP 2019540974A JP WO2019049878 A1 JPWO2019049878 A1 JP WO2019049878A1
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- 238000002485 combustion reaction Methods 0.000 claims abstract description 80
- 239000002737 fuel gas Substances 0.000 claims abstract description 75
- 239000000203 mixture Substances 0.000 claims abstract description 40
- 239000000446 fuel Substances 0.000 claims description 36
- 238000002347 injection Methods 0.000 claims description 35
- 239000007924 injection Substances 0.000 claims description 35
- 230000006835 compression Effects 0.000 claims description 9
- 238000007906 compression Methods 0.000 claims description 9
- 239000007789 gas Substances 0.000 description 25
- 238000010586 diagram Methods 0.000 description 12
- 230000004044 response Effects 0.000 description 10
- 230000008859 change Effects 0.000 description 9
- 238000000034 method Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 5
- 239000003949 liquefied natural gas Substances 0.000 description 3
- 239000002828 fuel tank Substances 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 239000003915 liquefied petroleum gas Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000001629 suppression Effects 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000001186 cumulative effect Effects 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 238000004817 gas chromatography Methods 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 230000002040 relaxant effect Effects 0.000 description 1
- 230000002000 scavenging effect Effects 0.000 description 1
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Classifications
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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
- F02D19/00—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
- F02D19/02—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with gaseous fuels
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D19/00—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
- F02D19/02—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with gaseous fuels
- F02D19/026—Measuring or estimating parameters related to the fuel supply system
- F02D19/029—Determining density, viscosity, concentration or composition
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D35/00—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for
- F02D35/02—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for on interior conditions
- F02D35/023—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for on interior conditions by determining the cylinder pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D35/00—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for
- F02D35/02—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for on interior conditions
- F02D35/023—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for on interior conditions by determining the cylinder pressure
- F02D35/024—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for on interior conditions by determining the cylinder pressure using an estimation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D35/00—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for
- F02D35/02—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for on interior conditions
- F02D35/025—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for on interior conditions by determining temperatures inside the cylinder, e.g. combustion temperatures
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D35/00—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for
- F02D35/02—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for on interior conditions
- F02D35/025—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for on interior conditions by determining temperatures inside the cylinder, e.g. combustion temperatures
- F02D35/026—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for on interior conditions by determining temperatures inside the cylinder, e.g. combustion temperatures using an estimation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D35/00—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for
- F02D35/02—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for on interior conditions
- F02D35/028—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for on interior conditions by determining the combustion timing or phasing
-
- 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
- F02D41/0027—Controlling engines characterised by use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures the fuel being gaseous
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D45/00—Electrical control not provided for in groups F02D41/00 - F02D43/00
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
- 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
- F02P5/152—Digital data processing dependent on pinking
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
- F02P23/00—Other ignition
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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
- Y02T10/30—Use of alternative fuels, e.g. biofuels
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
- Output Control And Ontrol Of Special Type Engine (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
Abstract
Description
筒内変数取得部230および遅れ推定部232は、ガス組成センサ210が最後に測定した(最新の)燃料ガスの組成の測定結果を取得する。
筒内変数取得部230は、筒内取得用パラメータ(ガスエンジン100の運転条件(吸気温度、吸気圧力、燃料ガスの噴射量(混合気濃度)、燃料噴射タイミング、圧縮比)と、燃料ガスの組成)に基づいて、筒内圧力および筒内温度を導出する。
遅れ推定部232は、遅れパラメータ(筒内圧力、筒内温度、燃料ガスの噴射量(混合気濃度)、および、燃料ガスの組成)に基づいて自着火遅れを推定する。
自着火予測部234は、遅れ推定部232が導出した自着火遅れの逆数を、時系列に順次、積算し、積算値が1以上となる時点を、自着火タイミングとして予測する。
完了予測部236は、燃料ガスの燃焼速度および筒内圧力の一方と、燃料ガスの噴射量に基づいて、燃焼完了タイミングを予測する。
運転制御部238は、自着火予測部234によって予測された自着火タイミングと、完了予測部236によって予測された燃焼完了タイミングとを比較する。運転制御部238は、自着火タイミングの方が、燃焼完了タイミングよりも早いか否かを判定する。自着火タイミングの方が、燃焼完了タイミングよりも早い場合、ステップ312に処理を移し、自着火タイミングが、燃焼完了タイミング以降の場合、ステップ314に処理を移す。
運転制御部238は、ノッキング抑制制御を遂行し、当該エンジン制御処理を終了する。
運転制御部238は、効率向上制御を遂行し、当該エンジン制御処理を終了する。
Claims (6)
- 燃料ガスの組成を含む第1パラメータに基づいて、自着火遅れを推定する遅れ推定部と、
前記自着火遅れに基づいて、自着火タイミングを予測する自着火予測部と、
前記燃料ガスの燃焼完了タイミングを予測する完了予測部と、
前記自着火タイミングと前記燃焼完了タイミングとの比較結果に基づいて、エンジンを制御する制御部と、
を備えるエンジン制御システム。 - 前記遅れ推定部は、燃料噴射開始から自着火までの間の複数の時点について、前記自着火遅れを推定し、
前記自着火予測部は、前記自着火遅れの逆数の積算値が1以上となる時点を、前記自着火タイミングと予測する請求項1に記載のエンジン制御システム。 - 前記第1パラメータとして、筒内圧力、筒内温度を取得する筒内変数取得部をさらに備え、
前記遅れ推定部は、前記複数の時点における前記筒内圧力、前記筒内温度に応じた前記自着火遅れを推定する請求項2に記載のエンジン制御システム。 - 前記筒内変数取得部は、前記燃料ガスの組成を含む第2パラメータに基づいて、前記筒内圧力、前記筒内温度を推定する請求項3に記載のエンジン制御システム。
- 前記完了予測部は、前記燃料ガスの燃焼速度および前記筒内圧力の一方と、前記燃料ガスの噴射量とに基づいて、前記燃焼完了タイミングを予測する請求項1から4のいずれか1項に記載のエンジン制御システム。
- 前記制御部は、吸気温度、吸気圧力、前記燃料ガスの噴射量、燃料噴射タイミング、圧縮比の少なくとも一つを変更する請求項1から5のいずれか1項に記載のエンジン制御システム。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2017171003 | 2017-09-06 | ||
JP2017171003 | 2017-09-06 | ||
PCT/JP2018/032830 WO2019049878A1 (ja) | 2017-09-06 | 2018-09-05 | エンジン制御システム |
Publications (2)
Publication Number | Publication Date |
---|---|
JPWO2019049878A1 true JPWO2019049878A1 (ja) | 2020-10-01 |
JP6870745B2 JP6870745B2 (ja) | 2021-05-12 |
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JP2019540974A Active JP6870745B2 (ja) | 2017-09-06 | 2018-09-05 | エンジン制御システム |
Country Status (6)
Country | Link |
---|---|
US (1) | US11085380B2 (ja) |
EP (1) | EP3680477A4 (ja) |
JP (1) | JP6870745B2 (ja) |
KR (1) | KR102257750B1 (ja) |
CN (1) | CN111094731B (ja) |
WO (1) | WO2019049878A1 (ja) |
Families Citing this family (1)
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KR102439468B1 (ko) | 2020-04-01 | 2022-09-02 | 엘지전자 주식회사 | 블레이드 보호 커버 및 이를 포함하는 잔디 깎기 장치 |
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CN111094731A (zh) | 2020-05-01 |
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US20200200104A1 (en) | 2020-06-25 |
EP3680477A1 (en) | 2020-07-15 |
CN111094731B (zh) | 2022-04-26 |
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WO2019049878A1 (ja) | 2019-03-14 |
US11085380B2 (en) | 2021-08-10 |
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