IT9067756A0 - Circuito idraulico di comando di innesti a frizione in power-shift per cambi di trattori. - Google Patents
Circuito idraulico di comando di innesti a frizione in power-shift per cambi di trattori.Info
- Publication number
- IT9067756A0 IT9067756A0 IT9067756A IT6775690A IT9067756A0 IT 9067756 A0 IT9067756 A0 IT 9067756A0 IT 9067756 A IT9067756 A IT 9067756A IT 6775690 A IT6775690 A IT 6775690A IT 9067756 A0 IT9067756 A0 IT 9067756A0
- Authority
- IT
- Italy
- Prior art keywords
- control circuit
- hydraulic power
- clutch control
- shift clutch
- gearboxes
- 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
- F16H61/04—Smoothing ratio shift
- F16H61/06—Smoothing ratio shift by controlling rate of change of fluid pressure
- F16H61/061—Smoothing ratio shift by controlling rate of change of fluid pressure using electric control 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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D48/00—External control of clutches
- F16D48/02—Control by fluid pressure
- F16D48/0206—Control by fluid pressure in a system with a plurality of fluid-actuated clutches
-
- 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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D48/00—External control of clutches
- F16D48/06—Control by electric or electronic means, e.g. of fluid pressure
- F16D48/066—Control of fluid pressure, e.g. using an accumulator
-
- 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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D48/00—External control of clutches
- F16D48/02—Control by fluid pressure
- F16D2048/0227—Source of pressure producing the clutch engagement or disengagement action within a circuit; Means for initiating command action in power assisted devices
- F16D2048/0233—Source of pressure producing the clutch engagement or disengagement action within a circuit; Means for initiating command action in power assisted devices by rotary pump actuation
-
- 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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D48/00—External control of clutches
- F16D48/02—Control by fluid pressure
- F16D2048/0257—Hydraulic circuit layouts, i.e. details of hydraulic circuit elements or the arrangement thereof
- F16D2048/0275—Two valves arranged in parallel, e.g. one for coarse and the other for fine control during supplying or draining fluid from the actuation cylinder
-
- 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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D48/00—External control of clutches
- F16D48/02—Control by fluid pressure
- F16D2048/0257—Hydraulic circuit layouts, i.e. details of hydraulic circuit elements or the arrangement thereof
- F16D2048/0281—Complex circuits with more than two valves in series or special arrangements thereof not provided for in previous groups
-
- 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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2500/00—External control of clutches by electric or electronic means
- F16D2500/10—System to be controlled
- F16D2500/11—Application
- F16D2500/1107—Vehicles
- F16D2500/111—Agricultural
-
- 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
- F16H61/02—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 characterised by the signals used
- F16H61/0202—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 characterised by the signals used the signals being electric
- F16H61/0251—Elements specially adapted for electric control units, e.g. valves for converting electrical signals to fluid signals
- F16H2061/0258—Proportional solenoid valve
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- Control Of Transmission Device (AREA)
- Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
- Gear-Shifting Mechanisms (AREA)
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT67756A IT1241614B (it) | 1990-10-03 | 1990-10-03 | Circuito idraulico di comando di innesti a frizione in power-shift per cambi di trattori. |
DE69115629T DE69115629T2 (de) | 1990-10-03 | 1991-09-25 | Hydraulikkreis zur Betätigung von Lastschaltkupplungen für Zugmaschinengetriebe |
AT91830399T ATE131915T1 (de) | 1990-10-03 | 1991-09-25 | Hydraulikkreis zur betätigung von lastschaltkupplungen für zugmaschinengetriebe |
EP91830399A EP0479737B1 (en) | 1990-10-03 | 1991-09-25 | A hydraulic circuit for the powershift operation of clutches for tractor gearboxes |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT67756A IT1241614B (it) | 1990-10-03 | 1990-10-03 | Circuito idraulico di comando di innesti a frizione in power-shift per cambi di trattori. |
Publications (3)
Publication Number | Publication Date |
---|---|
IT9067756A0 true IT9067756A0 (it) | 1990-10-03 |
IT9067756A1 IT9067756A1 (it) | 1992-04-03 |
IT1241614B IT1241614B (it) | 1994-01-25 |
Family
ID=11305052
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT67756A IT1241614B (it) | 1990-10-03 | 1990-10-03 | Circuito idraulico di comando di innesti a frizione in power-shift per cambi di trattori. |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0479737B1 (it) |
AT (1) | ATE131915T1 (it) |
DE (1) | DE69115629T2 (it) |
IT (1) | IT1241614B (it) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4117736C1 (it) * | 1991-05-30 | 1992-05-21 | Mercedes-Benz Aktiengesellschaft, 7000 Stuttgart, De | |
DE19546292A1 (de) * | 1995-12-12 | 1997-06-19 | Zahnradfabrik Friedrichshafen | Verfahren zur automatisierten Abstimmung des Befüllvorganges von Schaltelementen |
GB2312258A (en) * | 1996-04-19 | 1997-10-22 | Torotrak Dev Ltd | CVT control system has regime change clutches controlled independently of variator |
US5938557A (en) * | 1996-04-19 | 1999-08-17 | Torotrak (Development) Limited | CVT Control System |
FR2762880A1 (fr) * | 1997-04-30 | 1998-11-06 | Hydrokit | Valve de commande automatique de l'embrayage d'un vehicule dans le domaine agricole ou des travaux publics |
FR2769677B1 (fr) * | 1997-10-10 | 1999-12-03 | Renault | Procede et dispositif de controle de l'alimentation des recepteurs hydrauliques d'une transmission automatique |
DE19908602A1 (de) * | 1999-02-27 | 2000-09-14 | Getrag Getriebe Zahnrad | Automatisierter Antriebsstrang für ein Kraftfahrzeug und Verfahren zum Steuern eines Antriebsstranges |
JP2001213201A (ja) | 1999-12-17 | 2001-08-07 | Getrag Getriebe & Zahnradfab Hermann Hagenmeyer Gmbh & Co | 自動車のための自動的な駆動機構列並びに駆動機構列を制御する方法 |
DE10153722A1 (de) * | 2001-10-31 | 2003-05-22 | Volkswagen Ag | Verfahren zur Schaltsteuerung eines Lastschaltgetriebes |
ES2262375B1 (es) * | 2003-12-04 | 2007-12-01 | Iberica A.G., S.A. | Circuito hidraulico y/o neumatico para el control de par de un embrague proporcional hidraulico y/o neumatico, en especial para un dispositivo de transporte de hojas de material laminar. |
CN109058319B (zh) * | 2018-09-14 | 2023-12-22 | 中国船舶重工集团公司第七0三研究所 | 阶梯油压调节装置 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4653351A (en) * | 1986-02-12 | 1987-03-31 | General Motors Corporation | Clutch-to-clutch power-on downshifting in a motor vehicle automatic transmission |
EP0538243B1 (en) * | 1987-06-24 | 1997-08-20 | Kabushiki Kaisha Komatsu Seisakusho | Apparatus for controlling gear box |
US4924983A (en) * | 1987-12-10 | 1990-05-15 | Kubota, Ltd. | Propelling clutch apparatus for a working vehicle |
EP0356527B1 (en) * | 1988-02-19 | 1994-06-01 | Kabushiki Kaisha Komatsu Seisakusho | Clutch switching circuit of nonstage transmission |
DE3811615C1 (en) * | 1988-04-07 | 1989-11-30 | Hanomag Ag, 3000 Hannover, De | Control device for friction clutches, shiftable by hydraulic pressure, of a multigear power-shift transmission for vehicles |
-
1990
- 1990-10-03 IT IT67756A patent/IT1241614B/it active IP Right Grant
-
1991
- 1991-09-25 EP EP91830399A patent/EP0479737B1/en not_active Expired - Lifetime
- 1991-09-25 DE DE69115629T patent/DE69115629T2/de not_active Expired - Fee Related
- 1991-09-25 AT AT91830399T patent/ATE131915T1/de not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
EP0479737A1 (en) | 1992-04-08 |
IT1241614B (it) | 1994-01-25 |
EP0479737B1 (en) | 1995-12-20 |
DE69115629T2 (de) | 1996-08-01 |
IT9067756A1 (it) | 1992-04-03 |
DE69115629D1 (de) | 1996-02-01 |
ATE131915T1 (de) | 1996-01-15 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
0001 | Granted | ||
TA | Fee payment date (situation as of event date), data collected since 19931001 |
Effective date: 19971031 |