JP6157618B2 - トロイダル型無段変速機 - Google Patents
トロイダル型無段変速機 Download PDFInfo
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- JP6157618B2 JP6157618B2 JP2015522952A JP2015522952A JP6157618B2 JP 6157618 B2 JP6157618 B2 JP 6157618B2 JP 2015522952 A JP2015522952 A JP 2015522952A JP 2015522952 A JP2015522952 A JP 2015522952A JP 6157618 B2 JP6157618 B2 JP 6157618B2
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- Japan
- Prior art keywords
- input
- oil chamber
- disk
- continuously variable
- variable transmission
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Friction Gearing (AREA)
- Control Of Transmission Device (AREA)
Description
15 入力ディスク
15a 第2シリンダハウジング
16 出力ディスク
17 トラニオン
19 パワーローラ
20 スプライン嵌合
23 油圧ローダ
24 第1シリンダハウジング
24b 側壁
25 第1ピストン
26 第2ピストン
27 第1油室
28 第2油室
E エンジン(駆動源)
U 電子制御ユニット(制御手段)
Claims (4)
- 駆動源(E)に接続された回転軸(13)と、前記回転軸(13)に相対回転不能に支持された入力ディスク(15)と、前記回転軸(13)に相対回転自在に支持された出力ディスク(16)と、トラニオン(17)に傾転自在に支持されて前記入力ディスク(15)および前記出力ディスク(16)間に挟持されるパワーローラ(19)と、前記入力ディスク(15)を前記出力ディスク(16)に接近する方向に付勢する油圧ローダ(23)とを備え、
前記油圧ローダ(23)は、前記回転軸(13)に固定された第1シリンダハウジング(24)と、第1シリンダハウジング(24)の内周面に軸方向摺動自在に嵌合して前記入力ディスク(15)の背面に突設した第2シリンダハウジング(15a)の軸方向端部に当接する第1ピストン(25)と、前記回転軸(13)に固定されて前記第2シリンダハウジング(15a)の内周面に軸方向摺動自在に嵌合する第2ピストン(26)と、前記第1シリンダハウジング(24)の側壁(24b)および前記第1ピストン(25)間に区画された第1油室(27)と、前記入力ディスク(15)の背面および前記第2ピストン(26)間に区画された第2油室(28)と、前記第1油室(27)および前記第2油室(28)に供給する油圧を制御する制御手段(U)とを備えるトロイダル型無段変速機であって、
前記制御手段(U)は、前記入力ディスク(15)および前記出力ディスク(16)間の変速比と、前記駆動源(E)から前記入力ディスク(15)に入力される入力トルクとの少なくとも一方に基づいて、要求されるローディング圧が小さいときの第1制御状態と要求されるローディング圧が大きいときの第2制御状態とを切り換え、前記第1制御状態では前記第2油室(28)だけに油圧を供給し、前記第2制御状態では前記第1油室(27)および前記第2油室(28)の両方に油圧を供給することを特徴とするトロイダル型無段変速機。 - 前記入力ディスク(15)の外周面は前記第1シリンダハウジング(24)の内周面に軸方向摺動自在にスプライン嵌合(20)することを特徴とする、請求項1に記載のトロイダル型無段変速機。
- 前記第1制御状態および前記第2制御状態は変速比および入力トルクに基づいて切り換えられ、前記第1制御状態が選択される入力トルクは、中間変速比のときよりも高変速比あるいは低変速比のときの方が大きく設定されることを特徴とする、請求項1または請求項2に記載のトロイダル型無段変速機。
- 前記第1制御状態および前記第2制御状態を切り換える入力トルクの閾値は、前記駆動源(E)の出力トルクの急増時に減少方向に変更されることを特徴とする、請求項1〜請求項3の何れか1項に記載のトロイダル型無段変速機。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2013130426 | 2013-06-21 | ||
JP2013130426 | 2013-06-21 | ||
PCT/JP2014/066123 WO2014203921A1 (ja) | 2013-06-21 | 2014-06-18 | トロイダル型無段変速機 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPWO2014203921A1 JPWO2014203921A1 (ja) | 2017-02-23 |
JP6157618B2 true JP6157618B2 (ja) | 2017-07-05 |
Family
ID=52104650
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2015522952A Active JP6157618B2 (ja) | 2013-06-21 | 2014-06-18 | トロイダル型無段変速機 |
Country Status (3)
Country | Link |
---|---|
JP (1) | JP6157618B2 (ja) |
CN (1) | CN105283696B (ja) |
WO (1) | WO2014203921A1 (ja) |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0672652B2 (ja) * | 1986-05-01 | 1994-09-14 | 日産自動車株式会社 | トロイダル型無段変速機 |
GB2312257A (en) * | 1996-04-19 | 1997-10-22 | Torotrak Dev Ltd | Toroidal race variator control system varies end loading according to net pres sure |
JP4529442B2 (ja) * | 2003-02-28 | 2010-08-25 | 日本精工株式会社 | トロイダル型無段変速機 |
JP2005127490A (ja) * | 2003-10-27 | 2005-05-19 | Nsk Ltd | トロイダル型無段変速機 |
JP4605495B2 (ja) * | 2004-08-17 | 2011-01-05 | 日本精工株式会社 | トロイダル型無段変速機 |
-
2014
- 2014-06-18 CN CN201480033466.XA patent/CN105283696B/zh active Active
- 2014-06-18 WO PCT/JP2014/066123 patent/WO2014203921A1/ja active Application Filing
- 2014-06-18 JP JP2015522952A patent/JP6157618B2/ja active Active
Also Published As
Publication number | Publication date |
---|---|
JPWO2014203921A1 (ja) | 2017-02-23 |
CN105283696B (zh) | 2017-02-22 |
CN105283696A (zh) | 2016-01-27 |
WO2014203921A1 (ja) | 2014-12-24 |
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