JP6240614B2 - 連続可変トロイダル変速機 - Google Patents
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- JP6240614B2 JP6240614B2 JP2014551618A JP2014551618A JP6240614B2 JP 6240614 B2 JP6240614 B2 JP 6240614B2 JP 2014551618 A JP2014551618 A JP 2014551618A JP 2014551618 A JP2014551618 A JP 2014551618A JP 6240614 B2 JP6240614 B2 JP 6240614B2
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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
- F16H15/00—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by friction between rotary members
- F16H15/02—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by friction between rotary members without members having orbital motion
- F16H15/04—Gearings providing a continuous range of gear ratios
- F16H15/40—Gearings providing a continuous range of gear ratios in which two members co-operative by means of balls, or rollers of uniform effective diameter, not mounted on shafts
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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
- F16H15/00—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by friction between rotary members
- F16H15/02—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by friction between rotary members without members having orbital motion
- F16H15/04—Gearings providing a continuous range of gear ratios
- F16H15/06—Gearings providing a continuous range of gear ratios in which a member A of uniform effective diameter mounted on a shaft may co-operate with different parts of a member B
- F16H15/32—Gearings providing a continuous range of gear ratios in which a member A of uniform effective diameter mounted on a shaft may co-operate with different parts of a member B in which the member B has a curved friction surface formed as a surface of a body of revolution generated by a curve which is neither a circular arc centered on its axis of revolution nor a straight line
- F16H15/36—Gearings providing a continuous range of gear ratios in which a member A of uniform effective diameter mounted on a shaft may co-operate with different parts of a member B in which the member B has a curved friction surface formed as a surface of a body of revolution generated by a curve which is neither a circular arc centered on its axis of revolution nor a straight line with concave friction surface, e.g. a hollow toroid surface
- F16H15/38—Gearings providing a continuous range of gear ratios in which a member A of uniform effective diameter mounted on a shaft may co-operate with different parts of a member B in which the member B has a curved friction surface formed as a surface of a body of revolution generated by a curve which is neither a circular arc centered on its axis of revolution nor a straight line with concave friction surface, e.g. a hollow toroid surface with two members B having hollow toroid surfaces opposite to each other, the member or members A being adjustably mounted between the surfaces
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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
- F16H15/00—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by friction between rotary members
- F16H15/02—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by friction between rotary members without members having orbital motion
- F16H15/04—Gearings providing a continuous range of gear ratios
- F16H15/06—Gearings providing a continuous range of gear ratios in which a member A of uniform effective diameter mounted on a shaft may co-operate with different parts of a member B
- F16H15/08—Gearings providing a continuous range of gear ratios in which a member A of uniform effective diameter mounted on a shaft may co-operate with different parts of a member B in which the member B is a disc with a flat or approximately flat friction surface
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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
- F16H37/00—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00
- F16H37/02—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings
- F16H37/06—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts
- F16H37/08—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts with differential gearing
- F16H37/0833—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts with differential gearing with arrangements for dividing torque between two or more intermediate shafts, i.e. with two or more internal power paths
- F16H37/084—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts with differential gearing with arrangements for dividing torque between two or more intermediate shafts, i.e. with two or more internal power paths at least one power path being a continuously variable transmission, i.e. CVT
- F16H37/086—CVT using two coaxial friction members cooperating with at least one intermediate friction member
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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
- 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
- F16H61/66—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 continuously variable gearings
- F16H61/664—Friction gearings
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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
- 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
- F16H61/66—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 continuously variable gearings
- F16H61/664—Friction gearings
- F16H61/6649—Friction gearings characterised by the means for controlling the torque transmitting capability of the gearing
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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
- F16H15/00—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by friction between rotary members
- F16H15/02—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by friction between rotary members without members having orbital motion
- F16H15/04—Gearings providing a continuous range of gear ratios
- F16H15/06—Gearings providing a continuous range of gear ratios in which a member A of uniform effective diameter mounted on a shaft may co-operate with different parts of a member B
- F16H15/32—Gearings providing a continuous range of gear ratios in which a member A of uniform effective diameter mounted on a shaft may co-operate with different parts of a member B in which the member B has a curved friction surface formed as a surface of a body of revolution generated by a curve which is neither a circular arc centered on its axis of revolution nor a straight line
- F16H15/36—Gearings providing a continuous range of gear ratios in which a member A of uniform effective diameter mounted on a shaft may co-operate with different parts of a member B in which the member B has a curved friction surface formed as a surface of a body of revolution generated by a curve which is neither a circular arc centered on its axis of revolution nor a straight line with concave friction surface, e.g. a hollow toroid surface
- F16H15/38—Gearings providing a continuous range of gear ratios in which a member A of uniform effective diameter mounted on a shaft may co-operate with different parts of a member B in which the member B has a curved friction surface formed as a surface of a body of revolution generated by a curve which is neither a circular arc centered on its axis of revolution nor a straight line with concave friction surface, e.g. a hollow toroid surface with two members B having hollow toroid surfaces opposite to each other, the member or members A being adjustably mounted between the surfaces
- F16H2015/383—Gearings providing a continuous range of gear ratios in which a member A of uniform effective diameter mounted on a shaft may co-operate with different parts of a member B in which the member B has a curved friction surface formed as a surface of a body of revolution generated by a curve which is neither a circular arc centered on its axis of revolution nor a straight line with concave friction surface, e.g. a hollow toroid surface with two members B having hollow toroid surfaces opposite to each other, the member or members A being adjustably mounted between the surfaces with two or more sets of toroid gearings arranged in parallel
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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
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Friction Gearing (AREA)
Description
一連の変速機は、「フルトロイダル」変速機として公知である。フルトロイダル変速機において、各回転可能要素は変速機内のそれぞれのレースに接続され、各回転可能要素がそのレースと共に回転するよう固定され、また、レースが共通軸線(「変速機軸線」)の周りを回転するようになっている。各レースは作動面を有し、各作動面は、変速機軸線に平行な方向で対面するように配列される。各作動面内には、変速機軸線と同軸に弓形断面の環状凹部が形成される。この凹部は、変速機軸線に対して実質的に同じ半径(「トロイダル半径」)のものであり、これら凹部の断面が共通の仮想円上にあるように配列され、その仮想円の平面が変速機軸線と交差し、仮想円の中心が作動面に平行且つ作動面間に等間隔に配置された面(「中心面」)内にある。仮想円を変速機軸線の周りに延ばすことにより、仮想トーラスが描かれ、作動面がトーラスの対向する境界領域を占める。従って、レースの作動面間のスペースは、「トロイダルキャビティ」と呼ばれる。
変速機を制御するのに使用される主要な2つの方式、トルク制御と比制御がある。
・各キャリッジは、中心面に対して僅かな角度で傾斜した反力軸の周りの回転自由度を有する。
・各キャリッジは、アクチュエータにより加えられる力に抗して反力軸に沿って軸方向に移動することができる。
他の移動なしでキャリッジの傾転を直接変化させることにより比制御を達成しようとする場合、1つの副次的な影響は、転動要素と作動面との間の接触点が作動面にわたって半径方向に移動することである。これは、想起されるように、高度に粘性のある接触点の領域においてトラクション流体を剪断することによってのみ達成することができる。従って、このような直接制御作動を達するためにアクチュエータに供給しなければならない動力レベルは甚大で、必要とされる力及びストロークを提供するための高コストの作動機構が必要となる可能性がある。本発明の目的は、低作動力を用いて、従って低コストのアクチュエータを必要とする転動要素の制御を可能にする構成を提供することである。
12 環状凹部
20 ローラ
22 ローラ
26 ローラキャリッジ組立体
30 ステム
32 フォーク
40 制御組立体
42 スライダー
44 固定部分
48 アパーチャ
50 反力面
58 作動継手
60 スロット
Claims (23)
- 変速機であって、
変速機軸線の周りに回転するよう同軸に装着され、間にトロイダルキャビティが定められる入力レース及び出力レースと、
前記入力レース及び前記出力レースの間に配置され、それぞれの接触領域において前記入力レース及び前記出力レースと駆動係合する2つ以下の転動要素であって、各転動要素が転動軸の周りで回転するよう各キャリッジ組立体上に装着され、前記転動要素のそれぞれが各傾転軸の周りで自在に枢動することができ、前記傾転軸が、転動要素の中心の前記転動軸に垂直に前記転動要素を通過し、これにより前記入力レース及び前記出力レースの回転速度比である変速機比の変化によって前記各転動要素の前記傾転軸の周りの傾斜角度の変化を引き起こす前記2つ以下の転動要素と、を有し、
前記各キャリッジ組立体が、ピッチ軸線の周りで前記各キャリッジ組立体と関連する転動要素が枢動するよう装着され、その結果、前記関連する転動要素のピッチ角の変化をもたらし、前記ピッチ軸線が前記転動要素の中心及び前記接触領域を通過し、
前記変速機が更に、制御部材を有し、この制御部材は、複数のキャリッジ組立体の少なくとも1つのキャリッジによって支持される反力に対してほぼ垂直な並進移動によって、前記複数のキャリッジ組立体の少なくとも1つに対して動作可能であり、この並進移動により前記関連する転動要素がそのピッチ軸線の周りで枢動して、前記関連する転動要素のピッチ角を変化させ、前記2つ以下の転動要素に前記傾転軸の周りで枢動を行わせて、これにより変速機比の変化をもたらすように構成されている、変速機。 - 前記トロイダルキャビティは、前記入力レース及び前記出力レースに対してほぼ平行に且つ等間隔に配置された中心面を定め、前記傾転軸の少なくとも1つは、キャスター角によって前記変速機の中心面に対して傾斜している、請求項1に記載の変速機。
- 少なくとも1つの前記キャリッジ組立体は、前記変速機軸線に平行な方向で前記変速機の中心面からオフセットしている作動点で作動される、請求項2に記載の変速機。
- 前記作動点でのオフセットは、前記キャスター角を定める、請求項3に記載の変速機。
- 少なくとも1つの前記傾転軸は、前記転動要素の中心及び前記作動点を通って延びる、請求項3又は4に記載の変速機。
- 少なくとも1つの前記キャリッジ組立体及び前記関連する転動要素は、共に4つの接点を有し、これらの接点は、前記入力レース、前記出力レース、前記作動点、反力点にある、請求項3〜5の何れか1項に記載の変速機。
- 前記関連する転動要素からの荷重は、前記作動点から分離された、前記反力点によって担われる、請求項6に記載の変速機。
- さらに、20Wよりも小さい出力を有する前記制御部材を作動させる動力手段を備える、請求項1〜7の何れか1項に記載の変速機。
- 前記制御部材は、前記変速機軸線を含む平面の同じ側で前記2つの転動要素に動作可能に連結される、請求項1〜8の何れか1項に記載の変速機。
- 前記制御部材は、2つのキャリッジ組立体の双方を同時に作動させるものである、請求項1〜9の何れか1項に記載の変速機。
- 前記並進入力は、キャリッジ反力に対して実質的に垂直である、請求項10に記載の変速機。
- さらに、前記トロイダルキャビティ内に設けられた反力部材を備え、この反力部材は、前記転動要素からの反力トルクを担うように2つの転動要素に動作可能に連結される、請求項1〜11の何れか1項に記載の変速機。
- 前記反力部材は、この反力部材が前記トロイダルキャビティ内で各転動要素によって生成される反力荷重を平衡にするように前記変速機軸線の半径方向に移動可能である、請求項12に記載の変速機。
- 前記反力部材は、線形移動可能である、請求項13に記載の変速機。
- さらに、前記反力部材の移動を減衰させるダンパーを備える、請求項13又は14に記載の変速機。
- 前記反力部材は、前記変速機軸線の方向に移動可能である、請求項12〜15の何れか1項に記載の変速機。
- 前記キャリッジ組立体は、同時に作動する、請求項1〜16の何れか1項に記載の変速機。
- 前記キャリッジ組立体が装着される単一の制御部材を備える、請求項1〜17の何れか1項に記載の変速機。
- 前記ピッチ軸線の周りの少なくとも1つの前記キャリッジ組立体の移動が、単一アクチュエータを用いて達成される、請求項1〜18の何れか1項に記載の変速機。
- 転動要素を2つのみ有する、請求項1〜19の何れか1項に記載の変速機。
- 前記2つの転動要素は、前記入力作動面及び出力作動面の間に配置され、それぞれの接触領域において前記入力作動面及び出力作動面とトラクション流体を通じて駆動係合する、請求項1〜20の何れか1項に記載の変速機。
- 各キャリッジ組立体は、ピッチ軸線の周りで枢動するよう装着され、その結果、各転動要素の各ピッチ角の変化をもたらし、前記ピッチ軸線が前記各転動要素の前記接触領域を通過する、請求項1〜21の何れか1項に記載の変速機。
- 請求項1〜22の何れか1項に記載の変速機を組み込んだ、エンジンから補機に駆動力を伝達するための駆動装置。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1200357.0 | 2012-01-10 | ||
GBGB1200357.0A GB201200357D0 (en) | 2012-01-10 | 2012-01-10 | Variator |
PCT/EP2013/050425 WO2013104727A1 (en) | 2012-01-10 | 2013-01-10 | Continuously variable toroidal transmission |
Publications (3)
Publication Number | Publication Date |
---|---|
JP2015505019A JP2015505019A (ja) | 2015-02-16 |
JP2015505019A5 JP2015505019A5 (ja) | 2016-03-10 |
JP6240614B2 true JP6240614B2 (ja) | 2017-11-29 |
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ID=45788717
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
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JP2014551618A Active JP6240614B2 (ja) | 2012-01-10 | 2013-01-10 | 連続可変トロイダル変速機 |
JP2014551619A Active JP6198751B2 (ja) | 2012-01-10 | 2013-01-10 | 連続可変トロイダル変速機 |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
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JP2014551619A Active JP6198751B2 (ja) | 2012-01-10 | 2013-01-10 | 連続可変トロイダル変速機 |
Country Status (10)
Country | Link |
---|---|
US (2) | US20140349806A1 (ja) |
EP (3) | EP3508755B1 (ja) |
JP (2) | JP6240614B2 (ja) |
KR (1) | KR20140109497A (ja) |
CN (3) | CN104160175B (ja) |
BR (1) | BR112014017079B1 (ja) |
CA (1) | CA2863075C (ja) |
GB (10) | GB201200357D0 (ja) |
IN (2) | IN2014DN06163A (ja) |
WO (3) | WO2013104731A1 (ja) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB0920546D0 (en) * | 2009-11-24 | 2010-01-06 | Torotrak Dev Ltd | Drive mechanism for infinitely variable transmission |
GB201200357D0 (en) | 2012-01-10 | 2012-02-22 | Torotrak Dev Ltd | Variator |
GB201201068D0 (en) | 2012-01-23 | 2012-03-07 | Torotrak Dev Ltd | Variator |
GB201214316D0 (en) | 2012-08-10 | 2012-09-26 | Torotrak Dev Ltd | Infinitely-variable transmission for a vehicle |
GB2511461B (en) * | 2013-01-10 | 2015-08-05 | Torotrak Dev Ltd | Drive Arrangement for a Supercharger |
WO2015079070A1 (en) * | 2013-11-29 | 2015-06-04 | Torotrak (Development) Ltd | Toroidal variator |
GB201419494D0 (en) | 2014-10-31 | 2014-12-17 | Torotrak Dev Ltd | Variations |
WO2016095030A1 (en) * | 2014-12-17 | 2016-06-23 | Transmission Cvtcorp Inc. | Mechanical control of a toroidal continuously variable transmission (cvt) |
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