CA2312984C - Drive mechanism for infinitely-variable-transmission - Google Patents

Drive mechanism for infinitely-variable-transmission Download PDF

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Publication number
CA2312984C
CA2312984C CA002312984A CA2312984A CA2312984C CA 2312984 C CA2312984 C CA 2312984C CA 002312984 A CA002312984 A CA 002312984A CA 2312984 A CA2312984 A CA 2312984A CA 2312984 C CA2312984 C CA 2312984C
Authority
CA
Canada
Prior art keywords
shaft
discs
flexible member
disc
input
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.)
Expired - Fee Related
Application number
CA002312984A
Other languages
English (en)
French (fr)
Other versions
CA2312984A1 (en
Inventor
Christopher John Greenwood
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Torotrak Development Ltd
Original Assignee
Torotrak Development Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Torotrak Development Ltd filed Critical Torotrak Development Ltd
Publication of CA2312984A1 publication Critical patent/CA2312984A1/en
Application granted granted Critical
Publication of CA2312984C publication Critical patent/CA2312984C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Friction Gearing (AREA)
CA002312984A 1997-12-24 1998-12-14 Drive mechanism for infinitely-variable-transmission Expired - Fee Related CA2312984C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GBGB9727295.9A GB9727295D0 (en) 1997-12-24 1997-12-24 Improvements in or relating to steplessly-variable-ratio transmission apparatus
GB9727295.9 1997-12-24
PCT/GB1998/003734 WO1999034133A1 (en) 1997-12-24 1998-12-14 Drive mechanism for infinitely-variable-transmission

Publications (2)

Publication Number Publication Date
CA2312984A1 CA2312984A1 (en) 1999-07-08
CA2312984C true CA2312984C (en) 2007-04-17

Family

ID=10824199

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002312984A Expired - Fee Related CA2312984C (en) 1997-12-24 1998-12-14 Drive mechanism for infinitely-variable-transmission

Country Status (13)

Country Link
US (1) US6312356B1 (cg-RX-API-DMAC10.html)
EP (1) EP1042623B1 (cg-RX-API-DMAC10.html)
JP (1) JP4372997B2 (cg-RX-API-DMAC10.html)
KR (1) KR100604701B1 (cg-RX-API-DMAC10.html)
CN (1) CN1157546C (cg-RX-API-DMAC10.html)
AU (1) AU1499299A (cg-RX-API-DMAC10.html)
CA (1) CA2312984C (cg-RX-API-DMAC10.html)
DE (1) DE69804139T2 (cg-RX-API-DMAC10.html)
ES (1) ES2170540T3 (cg-RX-API-DMAC10.html)
GB (1) GB9727295D0 (cg-RX-API-DMAC10.html)
RU (1) RU2213281C2 (cg-RX-API-DMAC10.html)
WO (1) WO1999034133A1 (cg-RX-API-DMAC10.html)
ZA (1) ZA9811719B (cg-RX-API-DMAC10.html)

Families Citing this family (54)

* Cited by examiner, † Cited by third party
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GB9914251D0 (en) 1999-06-18 1999-08-18 Torotrak Dev Ltd Drive mechanism for infinitely variable transmission
JP3714226B2 (ja) * 2001-10-19 2005-11-09 日本精工株式会社 トロイダル型無段変速機
CA2401474C (en) * 2002-09-05 2011-06-21 Ecole De Technologie Superieure Drive roller control for toric-drive transmission
GB2394518A (en) 2002-10-23 2004-04-28 Torotrak Dev Ltd Continuously variable ratio transmission unit and method of assembly thereof
US7011600B2 (en) 2003-02-28 2006-03-14 Fallbrook Technologies Inc. Continuously variable transmission
CA2479890A1 (en) * 2004-09-27 2006-03-27 Samuel Beaudoin High efficiency generator system and continuously variable transmission therefor
BRPI0516562A (pt) 2004-10-05 2008-10-28 Fallbrook Technologies Inc transmissão continuamente variável
KR101831822B1 (ko) 2005-10-28 2018-02-23 폴브룩 인텔렉츄얼 프로퍼티 컴퍼니 엘엘씨 전동 드라이브
EP1954959B1 (en) 2005-11-22 2013-05-15 Fallbrook Intellectual Property Company LLC Continuously variable transmission
EP1963713B1 (en) 2005-12-09 2015-02-25 Fallbrook Intellectual Property Company LLC Continuously variable transmission
EP1811202A1 (en) 2005-12-30 2007-07-25 Fallbrook Technologies, Inc. A continuously variable gear transmission
EP2924262A1 (en) 2006-06-26 2015-09-30 Fallbrook Intellectual Property Company LLC Continuously variable transmission
JP5151135B2 (ja) * 2006-06-30 2013-02-27 日本精工株式会社 トロイダル型無段変速機および無段変速装置
WO2008095116A2 (en) 2007-02-01 2008-08-07 Fallbrook Technologies, Inc. System and methods for control of transmission and/or prime mover
CN104121345B (zh) 2007-02-12 2017-01-11 福博科知识产权有限责任公司 无级变速器及其方法
WO2008101070A2 (en) 2007-02-16 2008-08-21 Fallbrook Technologies Inc. Infinitely variable transmissions, continuously variable transmissions, methods, assemblies, subassemblies, and components therefor
EP2573425A3 (en) 2007-04-24 2017-07-26 Fallbrook Intellectual Property Company LLC Electric traction drives
US8641577B2 (en) 2007-06-11 2014-02-04 Fallbrook Intellectual Property Company Llc Continuously variable transmission
CA2983530A1 (en) 2007-07-05 2009-01-08 Fallbrook Intellectual Property Company, Llc Continuously variable transmission
WO2009065055A2 (en) 2007-11-16 2009-05-22 Fallbrook Technologies Inc. Controller for variable transmission
JP5783723B2 (ja) 2007-12-21 2015-09-24 フォールブルック インテレクチュアル プロパティー カンパニー エルエルシー 自動変速機及びその方法
CA2942806C (en) 2008-02-29 2018-10-23 Fallbrook Intellectual Property Company Llc Continuously and/or infinitely variable transmissions and methods therefor
US8317651B2 (en) 2008-05-07 2012-11-27 Fallbrook Intellectual Property Company Llc Assemblies and methods for clamping force generation
JP5457438B2 (ja) 2008-06-06 2014-04-02 フォールブルック インテレクチュアル プロパティー カンパニー エルエルシー 無限可変変速機、及び無限可変変速機用の制御システム
CN107246463A (zh) 2008-06-23 2017-10-13 福博科知识产权有限责任公司 无级变速器
CA2732668C (en) 2008-08-05 2017-11-14 Fallbrook Technologies Inc. Methods for control of transmission and prime mover
US8469856B2 (en) 2008-08-26 2013-06-25 Fallbrook Intellectual Property Company Llc Continuously variable transmission
US8167759B2 (en) 2008-10-14 2012-05-01 Fallbrook Technologies Inc. Continuously variable transmission
US8535200B2 (en) * 2009-03-17 2013-09-17 General Electric Company Vehicle propulsion system having a continuously variable transmission and method of making same
US20100240491A1 (en) * 2009-03-17 2010-09-23 Parag Vyas System for vehicle propulsion having and method of making same
WO2010120933A1 (en) * 2009-04-16 2010-10-21 Fallbrook Technologies Inc. Stator assembly and shifting mechanism for a continuously variable transmission
US8401752B2 (en) 2009-12-16 2013-03-19 Allison Transmission, Inc. Fail-to-neutral system and method for a toroidal traction drive automatic transmission
WO2011075427A1 (en) * 2009-12-16 2011-06-23 Allison Transmission, Inc. System and method for controlling endload force of a variator
EP2513516B1 (en) * 2009-12-16 2017-05-31 Allison Transmission, Inc. Variator lockout valve system
US8578802B2 (en) 2009-12-16 2013-11-12 Allison Transmission, Inc. System and method for multiplexing gear engagement control and providing fault protection in a toroidal traction drive automatic transmission
WO2011075243A1 (en) 2009-12-16 2011-06-23 Allison Transmission, Inc. Variator fault detection system
KR20120117805A (ko) * 2009-12-16 2012-10-24 알리손 트랜스미션, 인크. 자동 변속기를 위한 빠른 밸브 작동 시스템
US8512195B2 (en) 2010-03-03 2013-08-20 Fallbrook Intellectual Property Company Llc Infinitely variable transmissions, continuously variable transmissions, methods, assemblies, subassemblies, and components therefor
EP2606258B1 (en) 2010-08-16 2020-08-05 Allison Transmission, Inc. Gear scheme for infinitely variable transmission
US8888643B2 (en) 2010-11-10 2014-11-18 Fallbrook Intellectual Property Company Llc Continuously variable transmission
CA2821956C (en) 2010-12-15 2018-09-11 Allison Transmission, Inc. Variator multiplex valve scheme for a toroidal traction drive transmission
CN103597255B (zh) 2010-12-15 2015-12-16 艾里逊变速箱公司 用于环面牵引驱动变速器的变速机构切换阀方案
CA2821743C (en) 2010-12-15 2018-09-11 Allison Transmission, Inc. Dual pump regulator system for a motor vehicle transmission
JP2012172685A (ja) * 2011-02-17 2012-09-10 Nsk Ltd トロイダル型無段変速機
RU2618553C2 (ru) 2012-01-23 2017-05-04 Фоллбрук Интеллекчуал Проперти Компани Ллс Прогрессивные трансмиссии, бесступенчатые трансмиссии, способы, узлы, подузлы и их компоненты
EP2811204B1 (en) * 2012-02-03 2020-03-25 NSK Ltd. Toroidal-type continuously variable transmission
CN109018173B (zh) 2013-04-19 2021-05-28 福博科知识产权有限责任公司 无级变速器
US10047861B2 (en) 2016-01-15 2018-08-14 Fallbrook Intellectual Property Company Llc Systems and methods for controlling rollback in continuously variable transmissions
EP3430287B1 (en) 2016-03-18 2020-12-23 Fallbrook Intellectual Property Company LLC Continuously variable transmissions systems and methods
US10023266B2 (en) 2016-05-11 2018-07-17 Fallbrook Intellectual Property Company Llc Systems and methods for automatic configuration and automatic calibration of continuously variable transmissions and bicycles having continuously variable transmissions
TWI610038B (zh) * 2017-02-07 2018-01-01 Motive Power Industry Co Ltd 無段變速環座驅動機構
US11215268B2 (en) 2018-11-06 2022-01-04 Fallbrook Intellectual Property Company Llc Continuously variable transmissions, synchronous shifting, twin countershafts and methods for control of same
WO2020176392A1 (en) 2019-02-26 2020-09-03 Fallbrook Intellectual Property Company Llc Reversible variable drives and systems and methods for control in forward and reverse directions
WO2022178434A1 (en) 2021-02-22 2022-08-25 Fallbrook Intellectual Property Company Llc Automatic control of a motor-assisted bicycle to achieve a desired ride objective of a rider

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2157066A (en) * 1933-08-23 1939-05-02 Mildred S Reisman Power transmission mechanism
GB431199A (en) * 1933-12-28 1935-06-28 John Leslie Cloudsley Improvements relating to variable speed power transmission mechanism
GB436363A (en) * 1934-01-10 1935-10-10 John Leslie Cloudsley Improvements relating to variable speed power transmission mechanism
US2152796A (en) * 1935-03-13 1939-04-04 Erban Patents Corp Variable speed transmission
US2984118A (en) * 1956-09-11 1961-05-16 Nat Res Dev Infinitely variable change speed gears
NL290855A (cg-RX-API-DMAC10.html) * 1961-03-08
FR2643123A1 (fr) * 1988-05-13 1990-08-17 Solo Variateur de vitesse a poulies de diametre variable reunies par un lien tel que courroie ou chaine, sans glissement pour la transmission de couples eleves
JPH0823386B2 (ja) 1989-09-26 1996-03-06 日産自動車株式会社 摩擦車式無段変速機
US5368529A (en) 1992-06-29 1994-11-29 Nsk Ltd. Toroidal type continuously variable transmission

Also Published As

Publication number Publication date
JP2002500325A (ja) 2002-01-08
JP4372997B2 (ja) 2009-11-25
KR20010033566A (ko) 2001-04-25
WO1999034133A1 (en) 1999-07-08
DE69804139T2 (de) 2002-08-01
ES2170540T3 (es) 2002-08-01
CN1157546C (zh) 2004-07-14
DE69804139D1 (de) 2002-04-11
ZA9811719B (en) 2000-06-27
KR100604701B1 (ko) 2006-07-28
US6312356B1 (en) 2001-11-06
EP1042623B1 (en) 2002-03-06
GB9727295D0 (en) 1998-02-25
CN1283258A (zh) 2001-02-07
AU1499299A (en) 1999-07-19
CA2312984A1 (en) 1999-07-08
EP1042623A1 (en) 2000-10-11
RU2213281C2 (ru) 2003-09-27

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