JP2015105583A - マルチフューエルエンジンの燃料供給装置 - Google Patents
マルチフューエルエンジンの燃料供給装置 Download PDFInfo
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- JP2015105583A JP2015105583A JP2013246593A JP2013246593A JP2015105583A JP 2015105583 A JP2015105583 A JP 2015105583A JP 2013246593 A JP2013246593 A JP 2013246593A JP 2013246593 A JP2013246593 A JP 2013246593A JP 2015105583 A JP2015105583 A JP 2015105583A
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- 239000000446 fuel Substances 0.000 title claims abstract description 231
- 238000002347 injection Methods 0.000 claims abstract description 72
- 239000007924 injection Substances 0.000 claims abstract description 72
- 239000007788 liquid Substances 0.000 claims abstract description 54
- 238000012937 correction Methods 0.000 claims description 91
- 239000007789 gas Substances 0.000 claims description 21
- 230000009467 reduction Effects 0.000 claims description 19
- 230000007423 decrease Effects 0.000 claims description 13
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 6
- 230000003247 decreasing effect Effects 0.000 claims description 3
- 239000003345 natural gas Substances 0.000 claims description 3
- 230000004580 weight loss Effects 0.000 claims description 2
- 238000002485 combustion reaction Methods 0.000 abstract description 33
- 239000000243 solution Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 description 25
- 230000008569 process Effects 0.000 description 24
- 230000006978 adaptation Effects 0.000 description 9
- 238000001704 evaporation Methods 0.000 description 6
- 230000008020 evaporation Effects 0.000 description 6
- 238000001514 detection method Methods 0.000 description 5
- 230000008859 change Effects 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 239000002826 coolant Substances 0.000 description 3
- 239000000498 cooling water Substances 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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
- F02D19/06—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
- F02D19/0613—Switch-over from one fuel to another
- F02D19/0615—Switch-over from one fuel to another being initiated by automatic means, e.g. based on engine or vehicle operating conditions
-
- 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
-
- 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
- F02D19/0626—Measuring or estimating parameters related to the fuel supply system
- F02D19/0628—Determining the fuel pressure, temperature or flow, the fuel tank fill level or a valve position
-
- 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
- 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
- F02D19/0663—Details on the fuel supply system, e.g. tanks, valves, pipes, pumps, rails, injectors or mixers
- F02D19/0686—Injectors
- F02D19/0692—Arrangement of multiple injectors per combustion chamber
-
- 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
- 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
- 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
- F02D2250/00—Engine control related to specific problems or objectives
- F02D2250/18—Control of the engine output torque
- F02D2250/21—Control of the engine output torque during a transition between engine operation modes or states
-
- 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
- F02D41/1497—With detection of the mechanical response of the engine
-
- 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)
- Oil, Petroleum & Natural Gas (AREA)
- Output Control And Ontrol Of Special Type Engine (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
Abstract
Description
(ガソリン運転からCNG運転への切り替え)
図4には、マルチフューエルエンジンの運転をガソリン運転からCNG運転に切り替えたときの運転切替時適合処理の実行結果の一例が、同処理を実行しない場合と比較して示されている。
図5には、マルチフューエルエンジンの運転をCNG運転からガソリン運転に切り替えたときの運転切替時適合処理の実行結果の一例が、同処理を実行しない場合と比較して示されている。
(1)本実施形態のマルチフューエルエンジンの燃料供給装置は、ガソリン運転からCNG運転に切り替えられたとき、ウェット補正によるCNG噴射量の減量補正を行う。そのため、CNG運転切替後の空燃比のリッチ化を、ひいてはそのリッチ化による燃焼の不安定化を抑えることができる。
・上記実施形態では、CNG運転からガソリン運転への切替時に、ポート壁面のガソリン付着量の推定値を「0」にリセットすることで、ガソリン運転切替後のウェット補正によるガソリン噴射量の増量補正を行うようにしていた。こうしたガソリン付着量の推定値のリセットを行わず、ガソリン噴射量の増量補正を通常のウェット補正とは別途に行って、ガソリン運転切替後の空燃比のリーン化を抑制するようにしても良い。そうした場合にも、その増量補正の量を、ガソリン運転切替後の時間の経過に応じて徐々に減少させるようにすれば、実際のポート壁面のガソリンの付着状況の推移に応じた的確な増量補正を行えるようになる。
・上記実施形態では、減量補正の総量(総補正量)が、運転切替時のポート壁面のガソリン付着量となるようにガソリン運転からCNG運転に切り替えられたときのウェット補正によるCNG噴射量の減量補正を行っていたが、総量を別の値としても良い。
Claims (6)
- 液体燃料を吸気通路内に噴射することで燃料供給を行う液体燃料運転と、気体燃料を吸気中に噴射することで燃料供給を行う気体燃料運転とを、エンジン運転中に切り替え可能なマルチフューエルエンジンの燃料供給装置において、
前記液体燃料運転から前記気体燃料運転に切り替えられたとき、前記気体燃料の噴射量の減量補正を行う、
ことを特徴とするマルチフューエルエンジンの燃料供給装置。 - 前記減量補正の量を時間の経過に応じて徐々に減少させる、
請求項1に記載のマルチフューエルエンジンの燃料供給装置。 - 前記減量補正の総量を、切り替え時に前記吸気通路の壁面に付着していた前記液体燃料の量に前記気体燃料の理論空燃比に対する前記液体燃料の理論空燃比の比を乗算した値とする、
請求項1または2に記載のマルチフューエルエンジンの燃料供給装置。 - 前記気体燃料運転から前記液体燃料運転に切り替えられたとき、前記液体燃料の噴射量の増量補正を行う、
請求項1〜3のいずれか1項に記載のマルチフューエルエンジンの燃料供給装置。 - 前記増量補正の量を時間の経過に応じて徐々に減少させる、
請求項4に記載のマルチフューエルエンジンの燃料供給装置。 - 前記液体燃料は、ガソリンであり、前記気体燃料は、圧縮天然ガスである、
請求項1〜5のいずれか1項に記載のマルチフューエルエンジンの燃料供給装置。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2013246593A JP6118238B2 (ja) | 2013-11-28 | 2013-11-28 | マルチフューエルエンジンの燃料供給装置 |
CN201480064213.9A CN105874187A (zh) | 2013-11-28 | 2014-11-24 | 多燃料发动机的燃料供应装置 |
US15/031,903 US20160265450A1 (en) | 2013-11-28 | 2014-11-24 | Fuel supply system for multi-fuel engine |
PCT/JP2014/080986 WO2015080064A1 (ja) | 2013-11-28 | 2014-11-24 | マルチフューエルエンジンの燃料供給装置 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2013246593A JP6118238B2 (ja) | 2013-11-28 | 2013-11-28 | マルチフューエルエンジンの燃料供給装置 |
Publications (2)
Publication Number | Publication Date |
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JP2015105583A true JP2015105583A (ja) | 2015-06-08 |
JP6118238B2 JP6118238B2 (ja) | 2017-04-19 |
Family
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JP2013246593A Active JP6118238B2 (ja) | 2013-11-28 | 2013-11-28 | マルチフューエルエンジンの燃料供給装置 |
Country Status (4)
Country | Link |
---|---|
US (1) | US20160265450A1 (ja) |
JP (1) | JP6118238B2 (ja) |
CN (1) | CN105874187A (ja) |
WO (1) | WO2015080064A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2019183683A (ja) * | 2018-04-04 | 2019-10-24 | 株式会社辰巳菱機 | 発電装置 |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106438064A (zh) * | 2016-08-31 | 2017-02-22 | 毛志明 | 一种汽车多燃料ecu控制*** |
DE102018108097A1 (de) * | 2018-04-05 | 2019-10-10 | Volkswagen Aktiengesellschaft | Verfahren zum Betreiben einer Verbrennungskraftmaschine eines Antriebssystems für ein Kraftfahrzeug, Antriebssystem und Kraftfahrzeug |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0734915A (ja) * | 1993-07-20 | 1995-02-03 | Nissan Motor Co Ltd | 内燃機関の燃料供給制御装置 |
JP2010007630A (ja) * | 2008-06-30 | 2010-01-14 | Denso Corp | 燃料噴射制御装置及び燃料噴射制御システム |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
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US734915A (en) * | 1902-04-02 | 1903-07-28 | Diamond Rubber Company | Pneumatic tire. |
JP2004211610A (ja) * | 2003-01-06 | 2004-07-29 | Hitachi Ltd | バイフューエル型内燃機関の燃料噴射制御方法及び装置 |
JP4506613B2 (ja) * | 2004-11-12 | 2010-07-21 | マツダ株式会社 | パワートレインの制御装置 |
JP4247716B2 (ja) * | 2005-02-08 | 2009-04-02 | トヨタ自動車株式会社 | 内燃機関の燃料噴射制御装置 |
JP4747687B2 (ja) * | 2005-06-07 | 2011-08-17 | トヨタ自動車株式会社 | バイフューエルエンジンの制御装置 |
TWI442293B (zh) * | 2008-07-09 | 2014-06-21 | Egalax Empia Technology Inc | 電容式感測裝置及方法 |
KR101079865B1 (ko) * | 2009-08-19 | 2011-11-03 | 주식회사 케피코 | 가솔린 및 엘피지 겸용 차량의 연료분사 제어 장치 및 방법 |
DE112011101476B4 (de) * | 2010-04-28 | 2015-02-05 | Suzuki Motor Corp. | Brennstoffzufuhrsteuervorrichtung für Brennkraftmaschine |
CA2742011C (en) * | 2011-06-02 | 2012-07-17 | Saskatchewan Research Council | Method and system for powering an otto cycle engine using gasoline and compressed natural gas |
-
2013
- 2013-11-28 JP JP2013246593A patent/JP6118238B2/ja active Active
-
2014
- 2014-11-24 US US15/031,903 patent/US20160265450A1/en not_active Abandoned
- 2014-11-24 CN CN201480064213.9A patent/CN105874187A/zh active Pending
- 2014-11-24 WO PCT/JP2014/080986 patent/WO2015080064A1/ja active Application Filing
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0734915A (ja) * | 1993-07-20 | 1995-02-03 | Nissan Motor Co Ltd | 内燃機関の燃料供給制御装置 |
JP2010007630A (ja) * | 2008-06-30 | 2010-01-14 | Denso Corp | 燃料噴射制御装置及び燃料噴射制御システム |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2019183683A (ja) * | 2018-04-04 | 2019-10-24 | 株式会社辰巳菱機 | 発電装置 |
Also Published As
Publication number | Publication date |
---|---|
CN105874187A (zh) | 2016-08-17 |
WO2015080064A1 (ja) | 2015-06-04 |
US20160265450A1 (en) | 2016-09-15 |
JP6118238B2 (ja) | 2017-04-19 |
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