JP2018009489A - 内燃機関の制御装置 - Google Patents
内燃機関の制御装置 Download PDFInfo
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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
- F02D41/30—Controlling fuel injection
- F02D41/38—Controlling fuel injection of the high pressure type
- F02D41/40—Controlling fuel injection of the high pressure type with means for controlling injection timing or duration
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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
- F02B11/00—Engines characterised by both fuel-air mixture compression and air compression, or characterised by both positive ignition and compression ignition, e.g. in different cylinders
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D13/00—Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing
- F02D13/02—Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing during engine operation
- F02D13/0203—Variable control of intake and exhaust valves
- F02D13/0207—Variable control of intake and exhaust valves changing valve lift or valve lift and timing
- F02D13/0211—Variable control of intake and exhaust valves changing valve lift or valve lift and timing the change of valve timing is caused by the change in valve lift, i.e. both valve lift and timing are functionally related
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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
- 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
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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
- 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
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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
- F02D41/30—Controlling fuel injection
- F02D41/3011—Controlling fuel injection according to or using specific or several modes of combustion
- F02D41/3017—Controlling fuel injection according to or using specific or several modes of combustion characterised by the mode(s) being used
- F02D41/3035—Controlling fuel injection according to or using specific or several modes of combustion characterised by the mode(s) being used a mode being the premixed charge compression-ignition mode
- F02D41/3041—Controlling fuel injection according to or using specific or several modes of combustion characterised by the mode(s) being used a mode being the premixed charge compression-ignition mode with means for triggering compression ignition, e.g. spark plug
-
- 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
- F02D41/30—Controlling fuel injection
- F02D41/3011—Controlling fuel injection according to or using specific or several modes of combustion
- F02D41/3076—Controlling fuel injection according to or using specific or several modes of combustion with special conditions for selecting a mode of combustion, e.g. for starting, for diagnosing
-
- 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
- F02D41/30—Controlling fuel injection
- F02D41/3094—Controlling fuel injection the fuel injection being effected by at least two different injectors, e.g. one in the intake manifold and one in the cylinder
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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
- F02B1/00—Engines characterised by fuel-air mixture compression
- F02B1/12—Engines characterised by fuel-air mixture compression with compression ignition
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D13/00—Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing
- F02D13/02—Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing during engine operation
- F02D13/0223—Variable control of the intake valves only
- F02D13/0234—Variable control of the intake valves only changing the valve timing only
- F02D13/0238—Variable control of the intake valves only changing the valve timing only by shifting the phase, i.e. the opening periods of the valves are constant
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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
- F02D13/00—Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing
- F02D13/02—Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing during engine operation
- F02D13/0273—Multiple actuations of a valve within an engine cycle
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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
- F02D41/30—Controlling fuel injection
- F02D41/38—Controlling fuel injection of the high pressure type
- F02D2041/389—Controlling fuel injection of the high pressure type for injecting directly into the cylinder
-
- 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
- F02D2200/021—Engine temperature
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- 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
- F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
- F02M26/01—Internal exhaust gas recirculation, i.e. wherein the residual exhaust gases are trapped in the cylinder or pushed back from the intake or the exhaust manifold into the combustion chamber without the use of additional passages
-
- 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
- F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
- F02M26/02—EGR systems specially adapted for supercharged engines
- F02M26/04—EGR systems specially adapted for supercharged engines with a single turbocharger
- F02M26/05—High pressure loops, i.e. wherein recirculated exhaust gas is taken out from the exhaust system upstream of the turbine and reintroduced into the intake system downstream of the compressor
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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
- Y02T10/12—Improving ICE efficiencies
-
- 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
Abstract
【解決手段】内燃機関100の制御装置200は、機関本体1の温度が第1閾値未満のときには、吸気行程中に燃焼室11に燃料を供給して均質予混合気を形成し、当該均質予混合気を火炎伝播燃焼させ、機関本体1の温度が第1閾値以上であって、当該第1閾値よりも大きい第2閾値未満のときには、吸気行程中に燃焼室11に燃料を供給して均質予混合気を形成し、当該均質予混合気を圧縮自着火燃焼させ、機関本体1の温度が第2閾値以上のときには、圧縮行程中に燃焼室11に燃料を直接供給して成層予混合気を形成し、当該成層予混合気を圧縮自着火燃焼させるように構成される。
【選択図】図1
Description
図1は、本発明の第1実施形態による内燃機関100及び内燃機関100を制御する電子制御ユニット200の概略構成図である。図2は、本実施形態による内燃機関100の機関本体1の断面図である。
多量の排気を自気筒に吸い戻すことができるので、筒内温度を大きく上昇させることができる。一方で図4Bに示すように、吸気弁50のリフト量がある程度大きくなった後に排気弁60を開弁すれば、筒内にある程度空気(新気)が吸入された後に排気が吸い戻されることになるので、自気筒に吸い戻す排気の量を抑えて筒内温度の上昇幅を抑えることができる。このように、排気弁2度開き動作を実施するタイミングに応じて、筒内温度の上昇幅を制御することができる。本実施形態では、筒内ガス量中に占めるEGRガス量及び自気筒に吸い戻された排気の量の割合をEGR率と称する。
TTDC=TIVC×(VIVC/VTDC)k−1 …(1)
次に、本発明の第2実施形態について説明する。本実施形態は、機関運転状態が自着火領域RR内にあって冷却水温TWが第2閾値TW2未満のときに、筒内燃料噴射弁20と後述するポート燃料噴射弁25とから燃料を噴射する点で、第1実施形態と相違する。以下、この相違点を中心に説明する。
2 燃料供給装置
11 燃焼室
16 点火プラグ
100 内燃機関
200 電子制御ユニット(制御装置)
219 水温センサ(温度検出器)
Claims (4)
- 機関本体と、
少なくとも前記機関本体の燃焼室に燃料を直接供給することができるように構成された燃料供給装置と、
前記燃焼室内に臨むように配置された点火プラグと、
前記機関本体の温度を検出するための温度検出器と、
を備える内燃機関を制御するための内燃機関の制御装置であって、
前記燃焼室内で予混合気を圧縮自着火燃焼させることが可能な運転領域において、前記機関本体の温度に基づいて、前記燃料供給装置を制御すると共に必要に応じて前記点火プラグを制御して予混合気を燃焼させる燃焼制御部を備え、
前記燃焼制御部は、
前記機関本体の温度が第1閾値未満のときには、吸気行程中に前記燃焼室に燃料を供給して均質予混合気を形成し、当該均質予混合気を火炎伝播燃焼させ、
前記機関本体の温度が前記第1閾値以上であって、当該第1閾値よりも大きい第2閾値未満のときには、吸気行程中に前記燃焼室に燃料を供給して均質予混合気を形成し、当該均質予混合気を圧縮自着火燃焼させ、
前記機関本体の温度が前記第2閾値以上のときには、圧縮行程中に前記燃焼室に燃料を直接供給して成層予混合気を形成し、当該成層予混合気を圧縮自着火燃焼させるように構成される、
内燃機関の制御装置。 - 前記燃料供給装置は、前記燃焼室に燃料を間接的に供給することができるようにさらに構成されており、
前記燃焼制御部は、
前記機関本体の温度が前記第2閾値未満のときには、少なくとも一部の燃料を吸気行程中に前記燃焼室に間接的に供給しつつ、残りの燃料を吸気行程中に前記燃焼室に直接供給して均質予混合気を形成するようにさらに構成される、
請求項1に記載の内燃機関の制御装置。 - 前記燃焼制御部は、
前記機関本体の温度が前記第1閾値以上であって前記第2閾値未満の場合において、前記機関本体の温度が高いときには低いときに比べて、前記燃焼室に直接供給される燃料の割合を高くするようにさらに構成される、
請求項2に記載の内燃機関の制御装置。 - 前記燃焼制御部は、
予混合気が前記燃焼室内で断熱圧縮されたと仮定した場合の圧縮上死点における筒内温度の推定値に基づいて、前記第1閾値を算出する第1閾値算出部を備え、
前記第1閾値算出部は、
前記筒内温度の推定値が高いときほど、前記第1閾値を小さくするように構成される、
請求項1から請求項3までのいずれか1項に記載の内燃機関の制御装置。
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JP2016137916A JP6414152B2 (ja) | 2016-07-12 | 2016-07-12 | 内燃機関の制御装置 |
US15/644,865 US10337446B2 (en) | 2016-07-12 | 2017-07-10 | Control device for internal combustion engine |
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JP6554863B2 (ja) * | 2015-03-30 | 2019-08-07 | 三菱自動車工業株式会社 | エンジンの制御装置 |
CN108779730B (zh) * | 2016-11-22 | 2022-01-11 | 马自达汽车株式会社 | 压缩自燃式发动机的控制装置 |
WO2018096586A1 (ja) * | 2016-11-22 | 2018-05-31 | マツダ株式会社 | 圧縮自己着火式エンジンの制御装置 |
WO2018096652A1 (ja) * | 2016-11-25 | 2018-05-31 | マツダ株式会社 | 圧縮自己着火式エンジンの制御装置 |
JP6669124B2 (ja) * | 2017-04-21 | 2020-03-18 | トヨタ自動車株式会社 | 内燃機関 |
US11834983B2 (en) | 2019-07-15 | 2023-12-05 | The Research Foundation For The State University Of New York | Method for control of advanced combustion through split direct injection of high heat of vaporization fuel or water fuel mixtures |
JP7405062B2 (ja) * | 2020-11-13 | 2023-12-26 | マツダ株式会社 | エンジンシステム |
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JP2012241590A (ja) * | 2011-05-18 | 2012-12-10 | Mazda Motor Corp | 火花点火式ガソリンエンジン |
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DE60010176T2 (de) | 1999-05-12 | 2004-08-26 | Nissan Motor Co., Ltd., Yokohama | Selbstgezündete Brennkraftmaschine |
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US7347178B2 (en) * | 2006-01-12 | 2008-03-25 | Ford Global Technologies, Llc | System and method for controlling auto-ignition |
JP5845817B2 (ja) * | 2011-10-31 | 2016-01-20 | スズキ株式会社 | 内燃機関 |
DE102012008125B4 (de) * | 2012-04-25 | 2019-07-25 | Mtu Friedrichshafen Gmbh | Verfahren zur Steuerung und Regelung einer Brennkraftmaschine nach dem HCCI-Brennverfahren |
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Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
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JPH1030468A (ja) * | 1996-07-15 | 1998-02-03 | Fuji Heavy Ind Ltd | 筒内噴射エンジンの燃焼制御装置 |
JP2000320333A (ja) * | 1999-05-12 | 2000-11-21 | Nissan Motor Co Ltd | 圧縮自己着火式ガソリン機関 |
JP2003129848A (ja) * | 2001-10-22 | 2003-05-08 | Nissan Motor Co Ltd | 内燃機関 |
JP2012241590A (ja) * | 2011-05-18 | 2012-12-10 | Mazda Motor Corp | 火花点火式ガソリンエンジン |
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JP6414152B2 (ja) | 2018-10-31 |
US10337446B2 (en) | 2019-07-02 |
US20180017011A1 (en) | 2018-01-18 |
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