JP6608974B2 - 車両及び制御装置 - Google Patents
車両及び制御装置 Download PDFInfo
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- JP6608974B2 JP6608974B2 JP2018004441A JP2018004441A JP6608974B2 JP 6608974 B2 JP6608974 B2 JP 6608974B2 JP 2018004441 A JP2018004441 A JP 2018004441A JP 2018004441 A JP2018004441 A JP 2018004441A JP 6608974 B2 JP6608974 B2 JP 6608974B2
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- F16H2200/2012—Transmissions using gears with orbital motion characterised by the number of sets of orbital gears with four sets of orbital gears
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H2200/00—Transmissions for multiple ratios
- F16H2200/20—Transmissions using gears with orbital motion
- F16H2200/203—Transmissions using gears with orbital motion characterised by the engaging friction means not of the freewheel type, e.g. friction clutches or brakes
- F16H2200/2048—Transmissions using gears with orbital motion characterised by the engaging friction means not of the freewheel type, e.g. friction clutches or brakes with seven engaging means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H2200/00—Transmissions for multiple ratios
- F16H2200/20—Transmissions using gears with orbital motion
- F16H2200/203—Transmissions using gears with orbital motion characterised by the engaging friction means not of the freewheel type, e.g. friction clutches or brakes
- F16H2200/2066—Transmissions using gears with orbital motion characterised by the engaging friction means not of the freewheel type, e.g. friction clutches or brakes using one freewheel mechanism
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H2200/00—Transmissions for multiple ratios
- F16H2200/20—Transmissions using gears with orbital motion
- F16H2200/2079—Transmissions using gears with orbital motion using freewheel type mechanisms, e.g. freewheel clutches
- F16H2200/2082—Transmissions using gears with orbital motion using freewheel type mechanisms, e.g. freewheel clutches one freewheel mechanisms
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
- F16H3/006—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion power being selectively transmitted by either one of the parallel flow paths
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
- F16H3/44—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion
- F16H3/62—Gearings having three or more central gears
- F16H3/66—Gearings having three or more central gears composed of a number of gear trains without drive passing from one train to another
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
- F16H59/36—Inputs being a function of speed
- F16H59/44—Inputs being a function of speed dependent on machine speed of the machine, e.g. the vehicle
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/68—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing specially adapted for stepped gearings
- F16H61/684—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing specially adapted for stepped gearings without interruption of drive
- F16H61/688—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing specially adapted for stepped gearings without interruption of drive with two inputs, e.g. selection of one of two torque-flow paths by clutches
-
- 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
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- Engineering & Computer Science (AREA)
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- Transportation (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Automation & Control Theory (AREA)
- Control Of Transmission Device (AREA)
- Control Of Driving Devices And Active Controlling Of Vehicle (AREA)
Description
車両であって、
複数の摩擦係合機構の係合を切り替えることで、複数の変速段から変速段を選択可能に構成された自動変速機と、
走行中に所定の減速条件が成立したか否かを判定する判定手段と、
先行車に対する設定車間を維持するように前記車両を制御するオートクルーズを実行する走行制御手段と、
前記複数の摩擦係合機構を制御する係合制御手段と、を備え、
前記係合制御手段は、
前記判定手段により前記所定の減速条件が成立すると判定された場合に、前記複数の摩擦係合機構のうち、現在の変速段に対応した摩擦係合機構に加えて、前記自動変速機のインターロックを生じさせ得る別の摩擦係合機構の係合度合を制御することにより、前記車両を減速させ、
前記所定の減速条件は、前記オートクルーズにおいて、前記先行車との車間が前記設定車間を下回ったこと、及び、前記先行車が制動していないことを少なくとも含む、
ことを特徴とする車両が提供される。
図1を参照して制御装置1の構成について説明する。制御装置1は、ECU群(制御ユニット群)2を含む。ECU群2は、互いに通信可能に構成された複数のECU20〜28を含む。各ECUは、CPUに代表されるプロセッサ、半導体メモリ等の記憶デバイス、外部デバイスとのインタフェース等を含む。記憶デバイスにはプロセッサが実行するプログラムやプロセッサが処理に使用するデータ等が格納される。各ECUはプロセッサ、記憶デバイスおよびインタフェース等を複数備えていてもよい。なお、ECUの数や、担当する機能については適宜設計可能であり、本実施形態よりも細分化したり、あるいは、統合することが可能である。なお、図1においてはECU20〜28の代表的な機能の名称を付している。例えば、ECU20には「運転制御ECU」と記載している。
図2はパワープラント50の構成例を示すスケルトン図である。同図の例では、パワープラント50が内燃機関Eg、自動変速機AT及び電動機(モータ)Mを含む。内燃機関Eg或いは電動機Mから出力される駆動力は、自動変速機AT、終減速装置102を介して駆動軸103に伝達され、駆動輪DWを回転する。
制御装置1の制御例について説明する。図3はECU20が実行する運転制御のモード選択処理を示すフローチャートである。
Te=(内燃機関Egのフリクション+クラッチC1のトルク)×6速のレシオ−(1速のレシオ×クラッチC1のトルク)
と表すことができる。内燃機関Egのフリクションを−30Nm、クラッチC1のトルクを20Nm、1速のレシオを15、6速のレシオを3とすると、
Te=(−30Nm+20Nm)×3−(15×20Nm)=−330Nm
となる。本実施形態の制御を行わずに6速のみの場合、そのTeは、
Te=−30Nm×3=−90Nm
となり、本実施形態の制御を行うことで3倍以上のエンジンブレーキを得ることができる。クラッチC1の係合度合や、変速機構110側で待機させる変速段(1、3、5、7)でエンジンブレーキの大きさを変えることができ、これらは車両Vの走行状態に応じて図6のS22、S23で設定できる。また、シフトダウンに比べて内燃機関Egの回転数が変動することを抑制でき、しかも、クラッチC1を半クラッチとする制御を追加する制御なので、スムーズかつ迅速に車両Vの減速が可能となる。なお、クラッチC1の係合度合は、S23で設定した初期値を維持せず、車両Vの実際の減速度合に応じてAT減速制御中に変更するようにしてもよい。
図7の例は自動変速機ATとしてデュアルクラッチ式の自動変速機を例示したが、他の種類の自動変速機にも上述したAT減速制御は適用可能である。以下、トルクコンバータ及び遊星歯車機構を用いた自動変速機を例示する。
1.上記実施形態の車両(例えばV)は、
複数の摩擦係合機構(例えばC1,C2/C11-C13,B1-B3)の係合を切り替えることで、複数の変速段から変速段を選択可能に構成された自動変速機(例えばAT)と、
走行中に所定の減速条件が成立したか否かを判定する判定手段(例えば20)と、
前記複数の摩擦係合機構を制御する係合制御手段(例えば27)と、を備えた車両であって、
前記係合制御手段は、
前記判定手段により前記所定の減速条件が成立すると判定された場合に、前記複数の摩擦係合機構のうち、現在の変速段に対応した摩擦係合機構に加えて、前記自動変速機のインターロックを生じさせ得る別の摩擦係合機構の係合度合を制御することにより、前記車両を減速させる(例えばS22-S24)。
先行車に対する設定車間を維持するように前記車両を制御するオートクルーズを実行する走行制御手段(例えば20)を更に備え、
前記所定の減速条件は、前記オートクルーズにおいて、前記先行車との車間が前記設定車間を下回ったことを少なくとも含む(例えば図5(A))。
設定車速を維持するように前記車両を制御するオートクルーズを実行する走行制御手段(例えば20)を更に備え、
前記所定の減速条件は、前記オートクルーズにおいて、前記車両の車速が前記設定車速を上回ったことを少なくとも含む(例えば図5(B))。
前記所定の減速条件は、前記車両の走行路が下り勾配であることを少なくとも含む(例えば図5(C))。
前記係合制御手段は、
前記係合度合の制御を開始してから所定時間を経過した場合は、前記係合度合の制御を終了する(例えばS24,S28,S30)。
前記係合制御手段は、
前記係合度合の制御を開始してから所定時間を経過した場合は、前記係合度合の制御を終了し、変速段をシフトダウンする(例えばS31)。
前記所定の減速条件は、前記先行車が制動していないことを少なくとも含む。
前記所定の減速条件が成立した後、所定の条件が成立するまで(例えばS29)前記車両のブレーキ装置を作動しない。
前記別の摩擦係合機構とは、前記現在の変速段よりも低い変速段に対応した摩擦係合機構である。
前記自動変速機は、
奇数段を確立する第一変速機構(例えば110)と、
偶数段を確立する第二変速機構(例えば120)と、
走行駆動源と前記第一変速機構とを断続する第一クラッチ(例えばC1)と、
前記走行駆動源と前記第二変速機構とを断続する第二クラッチ(例えばC2)と、を備え、
前記複数の摩擦係合機構は、前記第一クラッチ及び前記第二クラッチである。
前記自動変速機は、複数の遊星歯車機構(例えばP1-P4)を有し、
前記複数の摩擦係合機構は、前記複数の遊星歯車機構が備える回転要素に接続されたブレーキ又はクラッチである(例えばC11-C13,B1-B3)。
自動変速機(例えばAT)を備えた車両の制御装置(例えば1)であって、
前記自動変速機は、複数の摩擦係合機構(例えばC1,C2/C11-C13,B1-B3)の係合を切り替えることで、複数の変速段から変速段を選択可能に構成されており、
前記制御装置は、
前記複数の摩擦係合機構を制御する係合制御手段(例えば27)を備え、
前記係合制御手段は、
前記車両の走行中に所定の減速条件が成立した場合に、前記複数の摩擦係合機構のうち、現在の変速段に対応した摩擦係合機構に加えて、前記自動変速機のインターロックを生じさせる別の摩擦係合機構の係合度合を制御することにより、前記車両を減速させる(例えばS22-S24)。
Claims (8)
- 車両であって、
複数の摩擦係合機構の係合を切り替えることで、複数の変速段から変速段を選択可能に構成された自動変速機と、
走行中に所定の減速条件が成立したか否かを判定する判定手段と、
先行車に対する設定車間を維持するように前記車両を制御するオートクルーズを実行する走行制御手段と、
前記複数の摩擦係合機構を制御する係合制御手段と、を備え、
前記係合制御手段は、
前記判定手段により前記所定の減速条件が成立すると判定された場合に、前記複数の摩擦係合機構のうち、現在の変速段に対応した摩擦係合機構に加えて、前記自動変速機のインターロックを生じさせ得る別の摩擦係合機構の係合度合を制御することにより、前記車両を減速させ、
前記所定の減速条件は、前記オートクルーズにおいて、前記先行車との車間が前記設定車間を下回ったこと、及び、前記先行車が制動していないことを少なくとも含む、
ことを特徴とする車両。 - 請求項1に記載の車両であって、
前記係合制御手段は、
前記係合度合の制御を開始してから所定時間を経過した場合は、前記係合度合の制御を終了する、
ことを特徴とする車両。 - 請求項1に記載の車両であって、
前記係合制御手段は、
前記係合度合の制御を開始してから所定時間を経過した場合は、前記係合度合の制御を終了し、変速段をシフトダウンする、
ことを特徴とする車両。 - 請求項1乃至請求項3のいずれか一項に記載の車両であって、
前記所定の減速条件が成立した後、所定の条件が成立するまで前記車両のブレーキ装置を作動しない、
ことを特徴とする車両。 - 請求項1に記載の車両であって、
前記別の摩擦係合機構とは、前記現在の変速段よりも低い変速段に対応した摩擦係合機構である、
ことを特徴とする車両。 - 請求項1に記載の車両であって、
前記自動変速機は、
奇数段を確立する第一変速機構と、
偶数段を確立する第二変速機構と、
走行駆動源と前記第一変速機構とを断続する第一クラッチと、
前記走行駆動源と前記第二変速機構とを断続する第二クラッチと、を備え、
前記複数の摩擦係合機構は、前記第一クラッチ及び前記第二クラッチである、
ことを特徴とする車両。 - 請求項1に記載の車両であって、
前記自動変速機は、複数の遊星歯車機構を有し、
前記複数の摩擦係合機構は、前記複数の遊星歯車機構が備える回転要素に接続されたブレーキ又はクラッチである、
ことを特徴とする車両。 - 自動変速機を備えた車両の制御装置であって、
前記自動変速機は、複数の摩擦係合機構の係合を切り替えることで、複数の変速段から変速段を選択可能に構成されており、
前記制御装置は、
先行車に対する設定車間を維持するように前記車両を制御するオートクルーズを実行する走行制御手段と、
前記複数の摩擦係合機構を制御する係合制御手段と、を備え、
前記係合制御手段は、
前記車両の走行中に所定の減速条件が成立した場合に、前記複数の摩擦係合機構のうち、現在の変速段に対応した摩擦係合機構に加えて、前記自動変速機のインターロックを生じさせる別の摩擦係合機構の係合度合を制御することにより、前記車両を減速させ、
前記所定の減速条件は、前記オートクルーズにおいて、前記先行車との車間が前記設定車間を下回ったこと、及び、前記先行車が制動していないことを少なくとも含む、
ことを特徴とする制御装置。
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US8788166B1 (en) * | 2013-02-28 | 2014-07-22 | Ford Global Technologies, Llc | Downshift controls using measured output torque |
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2018
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- 2018-12-11 CN CN201811507962.0A patent/CN110043649B/zh active Active
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