JP5874622B2 - 内燃機関の燃料噴射制御装置 - Google Patents
内燃機関の燃料噴射制御装置 Download PDFInfo
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- JP5874622B2 JP5874622B2 JP2012271376A JP2012271376A JP5874622B2 JP 5874622 B2 JP5874622 B2 JP 5874622B2 JP 2012271376 A JP2012271376 A JP 2012271376A JP 2012271376 A JP2012271376 A JP 2012271376A JP 5874622 B2 JP5874622 B2 JP 5874622B2
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- 239000000446 fuel Substances 0.000 title claims description 251
- 238000002347 injection Methods 0.000 title claims description 160
- 239000007924 injection Substances 0.000 title claims description 160
- 238000002485 combustion reaction Methods 0.000 title claims description 22
- 238000011144 upstream manufacturing Methods 0.000 claims description 37
- 239000007858 starting material Substances 0.000 claims description 28
- 230000001105 regulatory effect Effects 0.000 claims description 8
- 230000001276 controlling effect Effects 0.000 claims description 3
- 230000000903 blocking effect Effects 0.000 claims 2
- 239000007789 gas Substances 0.000 description 126
- 238000000034 method Methods 0.000 description 25
- 239000007788 liquid Substances 0.000 description 23
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 230000007423 decrease Effects 0.000 description 4
- 239000003502 gasoline Substances 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 238000001514 detection method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 2
- 230000002457 bidirectional effect Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 230000003111 delayed effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000002828 fuel tank Substances 0.000 description 2
- 239000003345 natural gas Substances 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- XTHFKEDIFFGKHM-UHFFFAOYSA-N Dimethoxyethane Chemical compound COCCOC XTHFKEDIFFGKHM-UHFFFAOYSA-N 0.000 description 1
- OTMSDBZUPAUEDD-UHFFFAOYSA-N Ethane Chemical compound CC OTMSDBZUPAUEDD-UHFFFAOYSA-N 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000001273 butane Substances 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000014509 gene expression Effects 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
- IJDNQMDRQITEOD-UHFFFAOYSA-N n-butane Chemical compound CCCC IJDNQMDRQITEOD-UHFFFAOYSA-N 0.000 description 1
- OFBQJSOFQDEBGM-UHFFFAOYSA-N n-pentane Natural products CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001294 propane Substances 0.000 description 1
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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
-
- 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
- F02B43/00—Engines characterised by operating on gaseous fuels; Plants including such engines
-
- 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
- F02D19/06—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 pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed
- F02D19/0602—Control of components of the fuel supply system
- F02D19/0605—Control of components of the fuel supply system to adjust the fuel pressure or temperature
-
- 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
- F02D19/06—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 pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed
- F02D19/0602—Control of components of the fuel supply system
- F02D19/0607—Control of components of the fuel supply system to adjust the fuel mass or volume flow
- F02D19/061—Control of components of the fuel supply system to adjust the fuel mass or volume flow by controlling fuel injectors
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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
- F02D19/06—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 pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed
- F02D19/0639—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 pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed characterised by the type of fuels
- F02D19/0642—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 pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed characterised by the type of fuels at least one fuel being gaseous, the other fuels being gaseous or liquid at standard conditions
- F02D19/0647—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 pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed characterised by the type of fuels at least one fuel being gaseous, the other fuels being gaseous or liquid at standard conditions the gaseous fuel being liquefied petroleum gas [LPG], liquefied natural gas [LNG], compressed natural gas [CNG] or dimethyl ether [DME]
-
- 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
- F02D41/04—Introducing corrections for particular operating conditions
- F02D41/06—Introducing corrections for particular operating conditions for engine starting or warming up
- F02D41/062—Introducing corrections for particular operating conditions for engine starting or warming up for starting
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M21/00—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form
- F02M21/02—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
- F02M21/0218—Details on the gaseous fuel supply system, e.g. tanks, valves, pipes, pumps, rails, injectors or mixers
- F02M21/023—Valves; Pressure or flow regulators in the fuel supply or return system
- F02M21/0239—Pressure or flow regulators therefor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M21/00—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form
- F02M21/02—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
- F02M21/0218—Details on the gaseous fuel supply system, e.g. tanks, valves, pipes, pumps, rails, injectors or mixers
- F02M21/0248—Injectors
- F02M21/0257—Details of the valve closing elements, e.g. valve seats, stems or arrangement of flow passages
- F02M21/026—Lift valves, i.e. stem operated valves
- F02M21/0263—Inwardly opening single or multi nozzle valves, e.g. needle valves
- F02M21/0266—Hollow stem valves; Piston valves; Stems having a spherical tip
-
- 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
- F02B43/00—Engines characterised by operating on gaseous fuels; Plants including such engines
- F02B43/10—Engines or plants characterised by use of other specific gases, e.g. acetylene, oxyhydrogen
- F02B2043/103—Natural gas, e.g. methane or LNG used as a fuel
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D2200/00—Input parameters for engine control
- F02D2200/02—Input parameters for engine control the parameters being related to the engine
- F02D2200/06—Fuel or fuel supply system parameters
- F02D2200/0602—Fuel pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D2250/00—Engine control related to specific problems or objectives
- F02D2250/31—Control of the fuel pressure
-
- 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
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M21/00—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form
- F02M21/02—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
- F02M21/0218—Details on the gaseous fuel supply system, e.g. tanks, valves, pipes, pumps, rails, injectors or mixers
- F02M21/0248—Injectors
- F02M21/0251—Details of actuators therefor
- F02M21/0254—Electric actuators, e.g. solenoid or piezoelectric
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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
Description
上記実施形態を例えば次のように変更してもよい。
Claims (8)
- ガス燃料を高圧状態で貯蔵するガスタンク(42)と、
該ガスタンクから燃料通路(41)を通じて供給されるガス燃料を噴射する燃料噴射手段(21)と、
前記燃料通路に設けられ、前記燃料噴射手段に供給されるガス燃料の圧力を減圧調整する圧力調整弁(60)と、
前記燃料通路において前記圧力調整弁の上流側に設けられ、閉鎖状態下で前記ガスタンクからのガス燃料の圧力により閉鎖方向の力が付与され、閉鎖によりガス燃料の流通を遮断するとともに、電源部(93)からの電力供給により駆動されて開放状態となる遮断弁(45)と、
前記電源部からの電力供給により駆動される、前記遮断弁以外の電気負荷(44,91)と、
を備える燃料噴射システムに適用される内燃機関の燃料噴射制御装置であって、
前記ガスタンクと前記圧力調整弁との間の高圧通路部(41a,51)の燃料圧力があらかじめ定めた所定値以上であることを判定する圧力判定手段と、
前記遮断弁が閉鎖されており、かつ前記圧力判定手段により前記高圧通路部の燃料圧力が所定値以上であると判定された状況下において、前記遮断弁を閉状態から開放させる開駆動のタイミングが前記電気負荷の駆動時期、又は同駆動時期内であって当該駆動の開始タイミングを含む所定時期に重複しないようにして、前記遮断弁の駆動を制御する遮断弁制御手段と、
を備えることを特徴とする内燃機関の燃料噴射制御装置。 - 前記燃料噴射手段に供給されるガス燃料の圧力である噴射圧があらかじめ定めた所定値以下であることを判定する噴射圧判定手段を備え、
前記遮断弁制御手段は、前記噴射圧判定手段により前記噴射圧が所定値以下であると判定された場合に、前記電気負荷との駆動の重複に関係なく、駆動要求に応じて前記遮断弁を開駆動させる請求項1に記載の内燃機関の燃料噴射制御装置。 - 前記電源部の出力電圧が所定値以上であるか否かを判定する電圧判定手段を備え、
前記遮断弁制御手段は、前記電圧判定手段により前記出力電圧が所定値以上であると判定された場合に、前記電気負荷との駆動の重複に関係なく、駆動要求に応じて前記遮断弁を開駆動させる請求項1又は2に記載の内燃機関の燃料噴射制御装置。 - 前記電気負荷として、前記内燃機関に始動のための初期回転を付与する始動装置(91)を備える燃料噴射システムに適用され、
前記遮断弁制御手段は、前記遮断弁の開駆動のタイミングが前記始動装置の駆動時期、又は同始動装置による始動初期時期に重複しないようにして、前記遮断弁の駆動を制御する請求項1乃至3のいずれか一項に記載の内燃機関の燃料噴射制御装置。 - 前記電気負荷として、前記ガスタンクの燃料出口近傍に設けられ、ガス燃料の流通を遮断する遮断機能を有するタンク出口弁(44)を備える燃料噴射システムに適用され、
前記遮断弁制御手段は、前記遮断弁の開駆動のタイミングが前記タンク出口弁を開放させる駆動時期に重複しないように、かつ前記タンク出口弁の開駆動よりも先に前記遮断弁が開駆動されるようにして、前記遮断弁の駆動を制御する請求項1乃至4のいずれか一項に記載の内燃機関の燃料噴射制御装置。 - 前記遮断弁が閉鎖されており、かつ前記圧力判定手段により前記高圧通路部の燃料圧力が所定値以上であると判定された状況下において、前記燃料噴射手段によるガス燃料の噴射を開始させる噴射要求が生じた場合に、前記遮断弁の開駆動のタイミングよりも前に前記ガス燃料の噴射を許可する手段をさらに備える請求項1乃至5のいずれか一項に記載の内燃機関の燃料噴射制御装置。
- 前記電気負荷として、前記ガスタンクの燃料出口近傍に設けられ、ガス燃料の流通を遮断する遮断機能を有するタンク出口弁(44)を備える燃料噴射システムに適用され、
前記遮断弁と前記タンク出口弁とが共に開放されている状態で、前記燃料噴射手段によるガス燃料の噴射を停止させる停止要求が生じた場合に、前記タンク出口弁を先に前記遮断弁を後にしてこれらを順に閉鎖させ、その後、前記燃料噴射手段によるガス燃料の噴射を停止させるようにした一連の噴射停止制御を実施する噴射停止制御手段を備える請求項1乃至6のいずれか一項に記載の内燃機関の燃料噴射制御装置。 - 前記噴射停止制御手段は、前記圧力判定手段により前記高圧通路部の燃料圧力が所定値以上であると判定された場合に、前記一連の噴射停止制御を実施し、前記圧力判定手段により前記高圧通路部の燃料圧力が所定値未満であると判定された場合に、前記一連の噴射停止制御を実施しない請求項7に記載の内燃機関の燃料噴射制御装置。
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JP2012271376A JP5874622B2 (ja) | 2012-12-12 | 2012-12-12 | 内燃機関の燃料噴射制御装置 |
PCT/JP2013/006771 WO2014091679A1 (ja) | 2012-12-12 | 2013-11-19 | 内燃機関の燃料噴射制御装置 |
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JP2016153626A (ja) * | 2015-02-20 | 2016-08-25 | 株式会社デンソー | 燃料噴射制御装置 |
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JP4023020B2 (ja) * | 1999-02-19 | 2007-12-19 | トヨタ自動車株式会社 | 高圧燃料噴射系の燃料圧制御装置 |
JP2007032329A (ja) * | 2005-07-25 | 2007-02-08 | Nissan Motor Co Ltd | 内燃機関の始動時における燃料噴射弁の制御方法 |
JP2011052952A (ja) * | 2009-08-07 | 2011-03-17 | Sanyo Electric Co Ltd | 冷凍機の運転管理装置 |
JP5553144B2 (ja) * | 2010-01-28 | 2014-07-16 | 株式会社ノーリツ | 電磁弁の駆動方法および燃焼装置 |
JP5518537B2 (ja) * | 2010-03-18 | 2014-06-11 | 株式会社ケーヒン | 遮断弁故障診断装置 |
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