JP5362107B2 - 発進制御方法、発進制御装置およびハイブリッド自動車、並びにプログラム - Google Patents
発進制御方法、発進制御装置およびハイブリッド自動車、並びにプログラム Download PDFInfo
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- B60W20/10—Controlling the power contribution of each of the prime movers to meet required power demand
- B60W20/13—Controlling the power contribution of each of the prime movers to meet required power demand in order to stay within battery power input or output limits; in order to prevent overcharging or battery depletion
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
- B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
- B60K6/50—Architecture of the driveline characterised by arrangement or kind of transmission units
- B60K6/54—Transmission for changing ratio
- B60K6/547—Transmission for changing ratio the transmission being a stepped gearing
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- B60L15/00—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles
- B60L15/20—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed
- B60L15/2045—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed for optimising the use of energy
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- B60W30/192—Mitigating problems related to power-up or power-down of the driveline, e.g. start-up of a cold engine
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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- 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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- F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
- F02N11/00—Starting of engines by means of electric motors
- F02N11/08—Circuits or control means specially adapted for starting of engines
- F02N11/0814—Circuits or control means specially adapted for starting of engines comprising means for controlling automatic idle-start-stop
- F02N11/0818—Conditions for starting or stopping the engine or for deactivating the idle-start-stop mode
- F02N11/0825—Conditions for starting or stopping the engine or for deactivating the idle-start-stop mode related to prevention of engine restart failure, e.g. disabling automatic stop at low battery state
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- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
- F02N11/00—Starting of engines by means of electric motors
- F02N11/08—Circuits or control means specially adapted for starting of engines
- F02N11/0814—Circuits or control means specially adapted for starting of engines comprising means for controlling automatic idle-start-stop
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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
- 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
- F02M21/0203—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels characterised by the type of gaseous fuel
- F02M21/0209—Hydrocarbon fuels, e.g. methane or acetylene
- F02M21/0212—Hydrocarbon fuels, e.g. methane or acetylene comprising at least 3 C-Atoms, e.g. liquefied petroleum gas [LPG], propane or butane
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
- F02N2200/00—Parameters used for control of starting apparatus
- F02N2200/06—Parameters used for control of starting apparatus said parameters being related to the power supply or driving circuits for the starter
- F02N2200/061—Battery state of charge [SOC]
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
- F02N2200/00—Parameters used for control of starting apparatus
- F02N2200/12—Parameters used for control of starting apparatus said parameters being related to the vehicle exterior
- F02N2200/124—Information about road conditions, e.g. road inclination or surface
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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
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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
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- 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
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Description
また、下り勾配の角度が所定値以上の場合、電動機のみによる発進を許可し、バッテリの温度が所定値より高い場合には、下り勾配の角度が所定値以上の場合であっても電動機のみによる発進を不許可とすることもできる。
以下、本発明の第一の実施の形態のハイブリッド自動車について、図1〜図4を参照しながら説明する。
Petroleum Gas)、または代替燃料等を内部で燃焼させて、軸を回転させる動力を発生させ、発生した動力をクラッチ12に伝達する。
ハイブリッド自動車1は、バッテリ15の所定の条件に応じて電動機13のみによる発進が可能か否かを判定し、電動機13のみによる発進が不可と判定されたときには、バッテリ15の所定の条件に応じ、エンジン10のみによる発進、電動機13とエンジン10とが協働することによる発進、のいずれか一方を選択するので、電力不足や力感不足に陥ることなく燃費の良い発進を行うことができる。
本発明の第二の実施の形態のハイブリッド自動車1Aを図5〜図7を参照して説明する。ハイブリッド自動車1Aは、図5に示すように、図1に示すハイブリッド自動車1の構成に、勾配センサ22が追加された構成である。
ハイブリッド自動車1Aは、バッテリ15のSOCまたは温度の条件に由来する電動機発進可否判定に加え、ハイブリッド自動車1Aが停車している路面の勾配に由来する電動機発進可否判定を行うので、路面環境に即して電力不足や力感不足に陥ることなく燃費の良い発進を行うことができる。すなわち、ハイブリッド自動車1Aが登り坂に停車しているときには、発進時のトルクが必要である。そこで、ハイブリッド自動車1Aが登り坂に停車しているときの発進時には、バッテリ15のSOCまたは温度の条件が電動機13のみによる発進を許可するときでもアシスト発進またはエンジン発進を選択することにより電力不足や力感不足に陥ることなく燃費の良い発進を行うことができる。
また、上述したフローチャートの説明では「以上」を「超える」とし、「未満」を「以下」とするなど、判定領域の境界については様々に変更してよい。
Claims (5)
- エンジンと電動機と前記電動機に電力を供給するバッテリとを有し、前記エンジンの回転軸と前記電動機の回転軸とはクラッチを介して接断制御され、前記エンジンもしくは前記電動機により走行可能であり、または前記エンジンと前記電動機とが協働して走行可能な発進制御装置において、
前記バッテリの所定の条件に応じて、発進方法を、前記クラッチを断に制御して前記電動機のみによる発進、前記クラッチを接に制御して前記エンジンのみによる発進、前記クラッチを接に制御して前記電動機と前記エンジンとが協働することによる発進、のいずれか1つの方法に選択する選択ステップと、
選択された発進方法による発進の実行を制御する制御ステップと、
を有し、
前記所定の条件は、前記バッテリの充電状態に関する条件、前記バッテリの温度に関する条件、または前記バッテリの充電状態と前記バッテリの温度の両方に関する条件であり、
前記バッテリの充電状態または温度の遷移を観測するステップを有し、
前記観測結果が前記電動機のみによる発進を許可する状況から前記電動機と前記エンジンとが協働することによる発進を許可する状況に遷移する過程の判定の基準点となるバッテリの充電状態の値または温度の値と、前記電動機と前記エンジンとが協働することによる発進を許可する状況から前記電動機のみによる発進を許可する状況に遷移する過程の判定の基準点となるバッテリの充電状態の値または温度の値が互いに異なり、
前記電動機と前記エンジンとが協働することによる発進を許可する状況から前記エンジンのみによる発進を許可する状況に遷移する過程の判定の基準点となるバッテリの充電状態の値または温度の値と、前記エンジンのみによる発進を許可する状況から前記電動機と前記エンジンとが協働することによる発進を許可する状況に遷移する過程の判定の基準点となるバッテリの充電状態の値または温度の値が互いに異なるように設定され、
前記所定の条件の他に、前記ハイブリッド自動車の発進位置の路面における登り勾配の状態がさらに条件として加味され、
前記観測ステップの観測結果によって、前記電動機のみによる発進を許可した場合であっても前記登り勾配を表す値が所定の値を超えるときには前記電動機のみによる発進を不許可とする、
ことを特徴とする発進制御方法。 - 請求項1記載の発進制御方法において、
下り勾配の角度が所定値以上で、バッテリの充電状態が所定値よりも低く、かつバッテリの温度が所定値により低い場合は、電動機のみによる発進を許可して前記クラッチを断に制御して発進を実行し、下り勾配の角度が所定値以上で、バッテリの充電状態が所定値より低く、かつバッテリの温度が所定値より高い場合には、電動機のみによる発進を不許可として前記クラッチを接に制御して発進を実行することを特徴とする発進制御方法。 - 請求項1または2項記載の発進制御方法を実行する発進制御部を有することを特徴とする発進制御装置。
- 請求項3記載の発進制御装置を有することを特徴とするハイブリッド自動車。
- 情報処理装置に、請求項3記載の発進制御装置の機能を実現させることを特徴とするプログラム。
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