JP2015182671A - 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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- JP2015182671A JP2015182671A JP2014062315A JP2014062315A JP2015182671A JP 2015182671 A JP2015182671 A JP 2015182671A JP 2014062315 A JP2014062315 A JP 2014062315A JP 2014062315 A JP2014062315 A JP 2014062315A JP 2015182671 A JP2015182671 A JP 2015182671A
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- 238000002485 combustion reaction Methods 0.000 title claims abstract description 83
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 122
- 239000000446 fuel Substances 0.000 claims abstract description 91
- 230000007246 mechanism Effects 0.000 claims description 46
- 230000009467 reduction Effects 0.000 claims description 23
- 230000006835 compression Effects 0.000 claims description 11
- 238000007906 compression Methods 0.000 claims description 11
- 230000001476 alcoholic effect Effects 0.000 abstract 2
- 239000003570 air Substances 0.000 description 71
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 46
- 238000000034 method Methods 0.000 description 21
- 239000007788 liquid Substances 0.000 description 13
- 239000003054 catalyst Substances 0.000 description 11
- 230000008569 process Effects 0.000 description 11
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 9
- 230000008014 freezing Effects 0.000 description 9
- 238000007710 freezing Methods 0.000 description 9
- 230000007423 decrease Effects 0.000 description 8
- 239000003502 gasoline Substances 0.000 description 8
- 238000002347 injection Methods 0.000 description 8
- 239000007924 injection Substances 0.000 description 8
- 239000002828 fuel tank Substances 0.000 description 7
- 230000002000 scavenging effect Effects 0.000 description 7
- 239000000243 solution Substances 0.000 description 6
- 239000007864 aqueous solution Substances 0.000 description 5
- 239000000203 mixture Substances 0.000 description 5
- 238000011144 upstream manufacturing Methods 0.000 description 5
- 239000004215 Carbon black (E152) Substances 0.000 description 4
- 238000004581 coalescence Methods 0.000 description 4
- 229930195733 hydrocarbon Natural products 0.000 description 4
- 150000002430 hydrocarbons Chemical class 0.000 description 4
- 239000012041 precatalyst Substances 0.000 description 4
- 239000007858 starting material Substances 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 238000009833 condensation Methods 0.000 description 3
- 230000005494 condensation Effects 0.000 description 3
- 230000001186 cumulative effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000012634 fragment Substances 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 239000002826 coolant Substances 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 239000012080 ambient air Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000000994 depressogenic effect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
- B60W10/04—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units
- B60W10/08—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of electric propulsion units, e.g. motors or generators
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
- B60W10/04—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units
- B60W10/06—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of combustion engines
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W20/00—Control systems specially adapted for hybrid vehicles
- B60W20/10—Controlling the power contribution of each of the prime movers to meet required power demand
- B60W20/15—Control strategies specially adapted for achieving a particular effect
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W20/00—Control systems specially adapted for hybrid vehicles
- B60W20/40—Controlling the engagement or disengagement of prime movers, e.g. for transition between prime movers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W30/00—Purposes of road vehicle drive control systems not related to the control of a particular sub-unit, e.g. of systems using conjoint control of vehicle sub-units
- B60W30/18—Propelling the vehicle
- B60W30/192—Mitigating problems related to power-up or power-down of the driveline, e.g. start-up of a cold engine
- B60W30/194—Mitigating problems related to power-up or power-down of the driveline, e.g. start-up of a cold engine related to low temperature conditions, e.g. high viscosity of hydraulic fluid
-
- 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
-
- 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
- F02D19/08—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 simultaneously using pluralities of fuels
- F02D19/082—Premixed fuels, i.e. emulsions or blends
- F02D19/084—Blends of gasoline and alcohols, e.g. E85
-
- 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
- F02D19/08—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 simultaneously using pluralities of fuels
- F02D19/082—Premixed fuels, i.e. emulsions or blends
- F02D19/085—Control based on the fuel type or composition
- F02D19/087—Control based on the fuel type or composition with determination of densities, viscosities, composition, concentration or mixture ratios of fuels
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D29/00—Controlling engines, such controlling being peculiar to the devices driven thereby, the devices being other than parts or accessories essential to engine operation, e.g. controlling of engines by signals external thereto
- F02D29/02—Controlling engines, such controlling being peculiar to the devices driven thereby, the devices being other than parts or accessories essential to engine operation, e.g. controlling of engines by signals external thereto peculiar to engines driving vehicles; peculiar to engines driving variable pitch propellers
-
- 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
- F02D41/02—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
- F02D41/064—Introducing corrections for particular operating conditions for engine starting or warming up for starting at cold start
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2530/00—Input parameters relating to vehicle conditions or values, not covered by groups B60W2510/00 or B60W2520/00
- B60W2530/213—Fuel type
-
- 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
- F02D2200/0611—Fuel type, fuel composition or fuel quality
-
- 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
- Y02T10/30—Use of alternative fuels, e.g. biofuels
-
- 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
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/62—Hybrid vehicles
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S903/00—Hybrid electric vehicles, HEVS
- Y10S903/902—Prime movers comprising electrical and internal combustion motors
- Y10S903/903—Prime movers comprising electrical and internal combustion motors having energy storing means, e.g. battery, capacitor
- Y10S903/93—Conjoint control of different elements
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Transportation (AREA)
- Automation & Control Theory (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Output Control And Ontrol Of Special Type Engine (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
- Hybrid Electric Vehicles (AREA)
Abstract
Description
燃料のアルコール濃度を取得する取得ユニットと、
前記内燃機関を駆動する電動機と、
前記内燃機関および前記電動機を制御するように構成された制御ユニットと、
を備え、
前記制御ユニットは、前記内燃機関の低温始動時から停止時までの運転時間、もしくは当該運転時間の増大につれ増大するパラメータが所定値以下であるとき、前記内燃機関の停止後、前記電動機により前記内燃機関をモータリングさせ、該モータリングのモータリング時間を、前記取得ユニットによって取得された燃料のアルコール濃度が相対的に高い場合に相対的に低い場合に比べて短くする
ことを特徴とする内燃機関の制御装置が提供される。
図1に、第1実施形態に係るハイブリッド車両50の構成を概略的に示す。ハイブリッド車両50は、内燃機関すなわちエンジン1と、エンジン1の出力軸としてのクランクシャフト1aに接続された3軸式の動力分配機構51と、動力分配機構51に接続された発電可能な第1電動機すなわち第1モータジェネレータ(以下第1モータと略称)MG1と、動力分配機構51の出力軸であるリングギヤ軸51aに同軸に接続された減速ギヤ機構52と、減速ギヤ機構52に接続された発電可能な第2電動機すなわち第2モータジェネレータ(以下第2モータと略称)MG2と、車両全体を制御する制御ユニットとしての電子制御ユニット(以下ECUと称す)20とを備える。
次に、本発明の第2実施形態を説明する。なお前記第1実施形態と同様の部分については説明を省略し、以下相違点を中心に説明する。
次に、本発明の第3実施形態を説明する。図14に示すように、本実施形態のハイブリッド車両84も前記実施形態のハイブリッド車両と異なる。本実施形態のハイブリッド車両84は、主に発電機として機能し、補助的に電動機として機能するモータジェネレータ85を有する。モータジェネレータ85は、エンジン1の動力をアシストする際に比較的小さな動力を発生する。このモータジェネレータ85が、上記モータリングの際にエンジン1を駆動する電動機として機能する。モータジェネレータ85は動力伝達機構、例えばベルト・プーリ機構86を介してクランクシャフト1aに連結される。モータジェネレータ85の下流側の構成は第2実施形態と同様である。
次に、本発明の第4実施形態を説明する。図15に示すように、本実施形態の車両87はハイブリッド車両ではなく、通常の車両であり、唯一の動力源としてエンジン1を備える。このように本発明はハイブリッド車両以外の車両にも適用可能である。エンジン1には始動用のスタータモータ88が備えられ、このスタータモータ88が、上記モータリングの際にエンジン1を駆動する電動機として機能する。なお周知のように、クランクシャフト1aに取り付けられたフライホイール89と、スタータモータ88の回転軸とにはギヤ90,91が設けられ、スタータモータ88はエンジンの始動時およびモータリング時に、これらギヤ90,91同士が噛み合うよう、フライホイール89に接近される。フライホイール89の下流側の構成は第2実施形態と同様である。
5 エアフローメータ
20 電子制御ユニット(ECU)
23 外気温センサ
34 アルコール濃度センサ
50 ハイブリッド車両
51 動力分配機構
52 減速ギヤ機構
58 ギヤ機構
59 デファレンシャルギヤ
60a,60b 駆動輪
MG1 第1モータジェネレータ(第1モータ)
Claims (7)
- アルコール燃料を使用可能な内燃機関の制御装置であって、
燃料のアルコール濃度を取得する取得ユニットと、
前記内燃機関を駆動する電動機と、
前記内燃機関および前記電動機を制御するように構成された制御ユニットと、
を備え、
前記制御ユニットは、前記内燃機関の低温始動時から停止時までの運転時間、もしくは当該運転時間の増大につれ増大するパラメータが所定値以下であるとき、前記内燃機関の停止後、前記電動機により前記内燃機関をモータリングさせ、該モータリングのモータリング時間を、前記取得ユニットによって取得された燃料のアルコール濃度が相対的に高い場合に相対的に低い場合に比べて短くする
ことを特徴とする内燃機関の制御装置。 - 前記制御ユニットは、前記モータリング時間を、前記運転時間もしくはパラメータが相対的に小さい場合に相対的に大きい場合に比べて短くする
ことを特徴とする請求項1に記載の内燃機関の制御装置。 - 前記制御ユニットは、前記モータリング時間を、外気温が相対的に高い場合に相対的に低い場合に比べて短くする
ことを特徴とする請求項1または2に記載の内燃機関の制御装置。 - 前記制御ユニットは、前記モータリング中に、吸気抵抗、圧縮抵抗および排気抵抗の少なくとも1つを低減するための抵抗低減制御を実行する
ことを特徴とする請求項1〜3のいずれか一項に記載の内燃機関の制御装置。 - 前記パラメータが、前記内燃機関の低温始動時から停止時までの間に算出された積算吸入空気量である
ことを特徴とする請求項1〜4のいずれか一項に記載の内燃機関の制御装置。 - 前記パラメータについての前記所定値が、外気温が相対的に低い場合に相対的に高い場合に比べて大きい値である
ことを特徴とする請求項5に記載の内燃機関の制御装置。 - 前記内燃機関がハイブリッド車両に搭載され、前記内燃機関が前記ハイブリッド車両の歯車機構に動力伝達可能に常時連結されている
ことを特徴とする請求項1〜6のいずれか一項に記載の内燃機関の制御装置。
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JP2014062315A JP6003936B2 (ja) | 2014-03-25 | 2014-03-25 | 内燃機関の制御装置 |
US14/644,550 US9566973B2 (en) | 2014-03-25 | 2015-03-11 | Control apparatus for internal combustion engine |
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Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2018030474A (ja) * | 2016-08-25 | 2018-03-01 | トヨタ自動車株式会社 | ハイブリッド自動車 |
JP2018034749A (ja) * | 2016-09-02 | 2018-03-08 | トヨタ自動車株式会社 | ハイブリッド自動車 |
JP2018039347A (ja) * | 2016-09-07 | 2018-03-15 | トヨタ自動車株式会社 | ハイブリッド自動車 |
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