GB2374391B - Transmission - Google Patents

Transmission

Info

Publication number
GB2374391B
GB2374391B GB0216959A GB0216959A GB2374391B GB 2374391 B GB2374391 B GB 2374391B GB 0216959 A GB0216959 A GB 0216959A GB 0216959 A GB0216959 A GB 0216959A GB 2374391 B GB2374391 B GB 2374391B
Authority
GB
United Kingdom
Prior art keywords
chamber
valving element
fluid
energy storing
storing means
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
GB0216959A
Other versions
GB0216959D0 (en
GB2374391A (en
Inventor
Oswald Friedmann
Bernhard Walter
Manfred Homm
Michael Reuschel
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.)
LuK Getriebe Systeme GmbH
Original Assignee
LuK Getriebe Systeme GmbH
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 LuK Getriebe Systeme GmbH filed Critical LuK Getriebe Systeme GmbH
Priority claimed from GB9814872A external-priority patent/GB2329684B/en
Publication of GB0216959D0 publication Critical patent/GB0216959D0/en
Publication of GB2374391A publication Critical patent/GB2374391A/en
Application granted granted Critical
Publication of GB2374391B publication Critical patent/GB2374391B/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
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L27/00—Adjustable joints, Joints allowing movement
    • F16L27/12—Adjustable joints, Joints allowing movement allowing substantial longitudinal adjustment or movement
    • F16L27/125—Adjustable joints, Joints allowing movement allowing substantial longitudinal adjustment or movement having longitudinal and rotary movement
    • 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
    • F16D25/00—Fluid-actuated clutches
    • F16D25/12—Details not specific to one of the before-mentioned types
    • F16D25/123—Details not specific to one of the before-mentioned types in view of cooling and lubrication
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W2710/00—Output or target parameters relating to a particular sub-units
    • B60W2710/02—Clutches
    • B60W2710/027—Clutch torque
    • 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
    • F16D2048/0212—Details of pistons for master or slave cylinders especially adapted for fluid control
    • 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
    • F16D2048/0266—Actively controlled valves between pressure source and 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
    • F16D2048/0278—Two valves in series arrangement for controlling supply to 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
    • F16D2500/00—External control of clutches by electric or electronic means
    • F16D2500/10—System to be controlled
    • F16D2500/104—Clutch
    • F16D2500/10406—Clutch position
    • F16D2500/10412—Transmission line of a vehicle
    • 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
    • F16H2061/0046—Details of fluid supply channels, e.g. within shafts, for supplying friction devices or transmission actuators with control fluid
    • 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
    • F16H57/00—General details of gearing
    • F16H57/04—Features relating to lubrication or cooling or heating
    • F16H57/0467—Elements of gearings to be lubricated, cooled or heated
    • F16H57/0473—Friction devices, e.g. clutches or brakes
    • 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
    • F16H61/0204—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 for gearshift control, e.g. control functions for performing shifting or generation of shift signal
    • F16H61/0206—Layout of electro-hydraulic control circuits, e.g. arrangement of valves
    • 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
    • F16H61/662—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 with endless flexible members

Abstract

A transmission for use in a power train of a motor vehicle comprises a clutch 20 including a cylinder defining a chamber 23, a piston 22, and a clutch disc. A first energy storing means, eg a spring (29, fig 4a), acts upon a side of the clutch disc, against a variable pressure of a fluid in the chamber, and in a direction to expel fluid from the chamber. Means for supplying fluid at variable pressure to the chamber comprises a source of pressurised fluid, and a pressure reducing valve 40 having a housing. A valving element 41 is movable in the housing between a plurality of positions, and second energy storing means, eg a spring 42, is provided for biasing the valving element to a predetermined position in which the pressure of fluid in the chamber of the cylinder counteracts the bias of the first energy storing means. A control valve 50 determines the position of the valving element, and is arranged to assume a plurality of different conditions including a preselected condition in which the control valve exerts no appreciable influence upon the valving element to permit the valving element to assume the predetermined position under the influence of the second energy storing means.
GB0216959A 1997-07-14 1998-07-10 Transmission Expired - Fee Related GB2374391B (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19730031 1997-07-14
DE19810427 1998-03-11
GB9814872A GB2329684B (en) 1997-07-14 1998-07-10 Transmission

Publications (3)

Publication Number Publication Date
GB0216959D0 GB0216959D0 (en) 2002-08-28
GB2374391A GB2374391A (en) 2002-10-16
GB2374391B true GB2374391B (en) 2002-11-27

Family

ID=27217534

Family Applications (3)

Application Number Title Priority Date Filing Date
GB0216959A Expired - Fee Related GB2374391B (en) 1997-07-14 1998-07-10 Transmission
GB0216962A Expired - Fee Related GB2374392B (en) 1997-07-14 1998-07-10 Transmission
GB0216044A Expired - Fee Related GB2373829B (en) 1997-07-14 1998-07-10 Transmission

Family Applications After (2)

Application Number Title Priority Date Filing Date
GB0216962A Expired - Fee Related GB2374392B (en) 1997-07-14 1998-07-10 Transmission
GB0216044A Expired - Fee Related GB2373829B (en) 1997-07-14 1998-07-10 Transmission

Country Status (1)

Country Link
GB (3) GB2374391B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2515126B (en) * 2013-07-26 2015-11-25 Polypipe Ltd Pipe Insert

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1986000849A1 (en) * 1984-07-19 1986-02-13 Zf-Herion-Systemtechnik Gmbh Pressure-adjusting system for a hydraulically-operated clutch and/or brake for the drive shaft of a press
GB2234030A (en) * 1989-04-26 1991-01-23 Honda Motor Co Ltd Apparatus for controlling the distribution of drive power for motor vehicles

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5517258B2 (en) * 1971-10-12 1980-05-10
US4468988A (en) * 1980-08-04 1984-09-04 Mitsubishi Jidosha Kogyo Kabushiki Kaisha Slip control system for a clutch
DE3928048A1 (en) * 1989-08-25 1991-02-28 Ford Werke Ag CONTROL DEVICE FOR A BRIDGE CLUTCH OF A HYDROKINETIC TORQUE CONVERTER
JP2878724B2 (en) * 1989-09-08 1999-04-05 ジャトコ株式会社 Hydraulic control device for lock-up clutch
US5456340A (en) * 1993-07-02 1995-10-10 General Motors Corporation Control for vehicular transmission retarders
JP3266399B2 (en) * 1993-12-27 2002-03-18 株式会社 神崎高級工機製作所 Muffler valve

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1986000849A1 (en) * 1984-07-19 1986-02-13 Zf-Herion-Systemtechnik Gmbh Pressure-adjusting system for a hydraulically-operated clutch and/or brake for the drive shaft of a press
GB2234030A (en) * 1989-04-26 1991-01-23 Honda Motor Co Ltd Apparatus for controlling the distribution of drive power for motor vehicles

Also Published As

Publication number Publication date
GB2373829A (en) 2002-10-02
GB0216959D0 (en) 2002-08-28
GB2374392A (en) 2002-10-16
GB0216044D0 (en) 2002-08-21
GB2374391A (en) 2002-10-16
GB2373829B (en) 2002-11-27
GB2374392B (en) 2002-11-27
GB0216962D0 (en) 2002-08-28

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20130710