ZA200905295B - Continuously variable transmission - Google Patents
Continuously variable transmissionInfo
- Publication number
- ZA200905295B ZA200905295B ZA200905295A ZA200905295A ZA200905295B ZA 200905295 B ZA200905295 B ZA 200905295B ZA 200905295 A ZA200905295 A ZA 200905295A ZA 200905295 A ZA200905295 A ZA 200905295A ZA 200905295 B ZA200905295 B ZA 200905295B
- Authority
- ZA
- South Africa
- Prior art keywords
- continuously variable
- variable transmission
- continuously
- transmission
- variable
- Prior art date
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
- 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
-
- 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
-
- 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
-
- 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
- F16H61/6648—Friction gearings controlling of shifting being influenced by a signal derived from the engine and the main coupling
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control Of Transmission Device (AREA)
- Friction Gearing (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GBGB0703353.3A GB0703353D0 (en) | 2007-02-21 | 2007-02-21 | Continuously variable transmission |
Publications (1)
Publication Number | Publication Date |
---|---|
ZA200905295B true ZA200905295B (en) | 2010-10-27 |
Family
ID=37909006
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ZA200905295A ZA200905295B (en) | 2007-02-21 | 2008-02-07 | Continuously variable transmission |
Country Status (12)
Country | Link |
---|---|
US (1) | US20100197447A1 (xx) |
EP (1) | EP2113057A1 (xx) |
JP (1) | JP2010519482A (xx) |
KR (1) | KR20090110949A (xx) |
CN (1) | CN101617151A (xx) |
BR (1) | BRPI0807188A2 (xx) |
CA (1) | CA2677426A1 (xx) |
GB (1) | GB0703353D0 (xx) |
MX (1) | MX2009008171A (xx) |
RU (1) | RU2009134985A (xx) |
WO (1) | WO2008102168A1 (xx) |
ZA (1) | ZA200905295B (xx) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2478120B (en) * | 2010-02-24 | 2013-03-13 | Torotrak Dev Ltd | Fluid supply for continuously variable transmission |
US8762014B2 (en) * | 2011-09-30 | 2014-06-24 | Caterpillar Inc. | Variator characterization for feed forward torque control |
JP2016507030A (ja) * | 2013-02-13 | 2016-03-07 | トロトラック・(ディベロップメント)・リミテッド | スーパーチャージャーなどのエンジンの付属装置用の駆動機構 |
JP5632049B1 (ja) * | 2013-07-10 | 2014-11-26 | 川崎重工業株式会社 | 無段変速機の制御用油圧回路 |
Family Cites Families (27)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3142190A (en) * | 1963-02-20 | 1964-07-28 | Curtiss Wright Corp | Ratio control system for toroidal transmission |
GB1032004A (en) * | 1964-05-01 | 1966-06-08 | Nat Res Dev | Improvements in or relating to toric race transmission units |
US3570317A (en) * | 1969-01-08 | 1971-03-16 | Excelermatic | Traction drive apparatus and control system |
US3802284A (en) * | 1972-08-02 | 1974-04-09 | Rotax Ltd | Variable-ratio toric drive with hydraulic relief means |
DE2301776B2 (de) * | 1973-01-15 | 1976-12-02 | P.I.V. Antrieb Werner Reimers Kg, 6380 Bad Homburg | Steuereinrichtung fuer einen aus einer brennkraftmaschine und motor und einem von dieser angetriebenen stufenlos einstellbarem zugorgangetriebe bestehenden fahrantrieb |
US4086820A (en) * | 1976-06-25 | 1978-05-02 | Excelermatic, Inc. | Infinitely variable traction roller transmission |
US4434675A (en) * | 1981-09-11 | 1984-03-06 | Excelermatic Inc. | Transmission ratio control arrangement for a precess cam controlled infinitely variable traction roller transmission |
JP2734583B2 (ja) * | 1988-12-16 | 1998-03-30 | 日産自動車株式会社 | 無段変速機の変速制御装置 |
US4911030A (en) * | 1989-01-30 | 1990-03-27 | Excelermatic Inc. | Traction roller transmission ratio control arrangement |
US5330396A (en) * | 1992-12-16 | 1994-07-19 | The Torax Company, Inc. | Loading device for continuously variable transmission |
US5540631A (en) * | 1992-12-16 | 1996-07-30 | The Torax Company, Inc. | Continuously variable transmission with a hydraulic control system |
US6030310A (en) * | 1996-04-19 | 2000-02-29 | Torotrak (Development) Limited | Variator control system |
US6113513A (en) * | 1997-02-26 | 2000-09-05 | Nsk Ltd. | Toroidal type continuously variable transmission |
GB9819903D0 (en) * | 1998-09-11 | 1998-11-04 | Torotrak Dev Ltd | Hydraulic supply for infinitely variable transmission |
US6162144A (en) * | 1999-06-01 | 2000-12-19 | General Motors Corporation | Traction coefficient control for a continuously variable transmission |
US6663532B1 (en) * | 1999-09-20 | 2003-12-16 | Transmisiones Tsp, S. A., De, C.V. | Dual strategy control for a toroidal drive type continuously variable transmission |
GB2369164A (en) * | 2000-11-16 | 2002-05-22 | Torotrak Dev Ltd | Hydraulic control of a continuously-variable ratio transmission |
ES2249558T3 (es) * | 2001-03-29 | 2006-04-01 | Torotrak (Development) Ltd. | Circuito hidraulico para el control de una unidad de relacion continuamente variable. |
ATE303536T1 (de) * | 2001-05-01 | 2005-09-15 | Torotrak Dev Ltd | Hydraulischer steuerkreis für ein stufenlos verstellbares getriebe |
JP3838052B2 (ja) * | 2001-05-08 | 2006-10-25 | 日産自動車株式会社 | トロイダル型無段変速機 |
US6931316B2 (en) | 2002-06-05 | 2005-08-16 | Nissan Motor Co., Ltd. | Toroidal continuously variable transmission control apparatus |
JP3790191B2 (ja) * | 2002-07-18 | 2006-06-28 | ジヤトコ株式会社 | トロイダル型無段変速機 |
GB0300419D0 (en) * | 2003-01-09 | 2003-02-05 | Torotrak Dev Ltd | Continuously variable transmission and method of controlling regime change therein |
JP4370842B2 (ja) * | 2003-07-14 | 2009-11-25 | 日本精工株式会社 | 無段変速装置 |
GB0326077D0 (en) * | 2003-11-07 | 2003-12-10 | Torotrak Dev Ltd | Productionised hydraulics |
JP4775627B2 (ja) * | 2005-04-28 | 2011-09-21 | 株式会社ジェイテクト | フルトロイダル型無段変速機 |
GB0611265D0 (en) * | 2006-06-08 | 2006-07-19 | Torotrak Dev Ltd | Arrangement for control of a continuously variable transmission |
-
2007
- 2007-02-21 GB GBGB0703353.3A patent/GB0703353D0/en not_active Ceased
-
2008
- 2008-02-07 KR KR1020097019593A patent/KR20090110949A/ko not_active Application Discontinuation
- 2008-02-07 MX MX2009008171A patent/MX2009008171A/es unknown
- 2008-02-07 ZA ZA200905295A patent/ZA200905295B/xx unknown
- 2008-02-07 EP EP08709597A patent/EP2113057A1/en not_active Ceased
- 2008-02-07 CN CN200880005671A patent/CN101617151A/zh active Pending
- 2008-02-07 CA CA002677426A patent/CA2677426A1/en not_active Abandoned
- 2008-02-07 JP JP2009550764A patent/JP2010519482A/ja not_active Withdrawn
- 2008-02-07 WO PCT/GB2008/050077 patent/WO2008102168A1/en active Application Filing
- 2008-02-07 RU RU2009134985/11A patent/RU2009134985A/ru not_active Application Discontinuation
- 2008-02-07 US US12/528,080 patent/US20100197447A1/en not_active Abandoned
- 2008-02-07 BR BRPI0807188-8A patent/BRPI0807188A2/pt not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
GB0703353D0 (en) | 2007-03-28 |
RU2009134985A (ru) | 2011-03-27 |
BRPI0807188A2 (pt) | 2014-05-27 |
JP2010519482A (ja) | 2010-06-03 |
CA2677426A1 (en) | 2008-08-28 |
CN101617151A (zh) | 2009-12-30 |
EP2113057A1 (en) | 2009-11-04 |
MX2009008171A (es) | 2009-08-12 |
KR20090110949A (ko) | 2009-10-23 |
US20100197447A1 (en) | 2010-08-05 |
WO2008102168A1 (en) | 2008-08-28 |
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