WO2009112345A1 - Ensemble permettant l'actionnement d'au moins un mécanisme de changement de vitesse d'une boîte de vitesses - Google Patents

Ensemble permettant l'actionnement d'au moins un mécanisme de changement de vitesse d'une boîte de vitesses Download PDF

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Publication number
WO2009112345A1
WO2009112345A1 PCT/EP2009/052015 EP2009052015W WO2009112345A1 WO 2009112345 A1 WO2009112345 A1 WO 2009112345A1 EP 2009052015 W EP2009052015 W EP 2009052015W WO 2009112345 A1 WO2009112345 A1 WO 2009112345A1
Authority
WO
WIPO (PCT)
Prior art keywords
actuating
actuator
switching
switching device
arrangement according
Prior art date
Application number
PCT/EP2009/052015
Other languages
German (de)
English (en)
Inventor
Matthias Reisch
Mark Mohr
Ralf Dreibholz
Original Assignee
Zf Friedrichshafen Ag
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 Zf Friedrichshafen Ag filed Critical Zf Friedrichshafen Ag
Publication of WO2009112345A1 publication Critical patent/WO2009112345A1/fr

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
    • F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
    • F16H63/02—Final output mechanisms therefor; Actuating means for the final output mechanisms
    • F16H63/30—Constructional features of the final output mechanisms
    • F16H63/304—Constructional features of the final output mechanisms the final output mechanisms comprising elements moved by electrical or magnetic force
    • 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
    • F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
    • F16H63/02—Final output mechanisms therefor; Actuating means for the final output mechanisms
    • F16H63/30—Constructional features of the final output mechanisms
    • F16H63/34—Locking or disabling mechanisms
    • 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
    • F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
    • F16H63/02—Final output mechanisms therefor; Actuating means for the final output mechanisms
    • F16H63/30—Constructional features of the final output mechanisms
    • F16H63/304—Constructional features of the final output mechanisms the final output mechanisms comprising elements moved by electrical or magnetic force
    • F16H2063/3063—Constructional features of the final output mechanisms the final output mechanisms comprising elements moved by electrical or magnetic force using screw devices
    • 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
    • F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
    • F16H63/02—Final output mechanisms therefor; Actuating means for the final output mechanisms
    • F16H63/30—Constructional features of the final output mechanisms
    • F16H2063/3089—Spring assisted shift, e.g. springs for accumulating energy of shift movement and release it when clutch teeth are aligned
    • 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
    • F16H61/26—Generation or transmission of movements for final actuating mechanisms
    • F16H61/28—Generation or transmission of movements for final actuating mechanisms with at least one movement of the final actuating mechanism being caused by a non-mechanical force, e.g. power-assisted
    • F16H61/32—Electric motors actuators or related electrical control means therefor
    • 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
    • F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
    • F16H63/02—Final output mechanisms therefor; Actuating means for the final output mechanisms
    • F16H63/30—Constructional features of the final output mechanisms
    • F16H63/38—Detents

Definitions

  • the present invention relates to an arrangement for actuating at least one switching device of a transmission with an actuating device according to the closer defined in the preamble of claim 1.
  • switching devices or switching elements e.g. be operated in the countershaft gears by means of shift forks or shift rockers from radially outside.
  • the switching devices or switching elements each comprise an axially displaceable sliding sleeve to switch the respective gearwheel.
  • the sliding sleeve is hydraulically controlled.
  • correspondingdeölzu operationskanäle are arranged in the shaft at which the to be switched gear wheels are.
  • a manual transmission is known, are provided in the to be switched gear wheels with an internal operation and thereto adapted actuators.
  • the internal operation of the sliding sleeve is realized via a connecting pin which can move axially in slots of the hollow shaft.
  • the connecting pin is actuated by a co-rotating hydraulic unit integrated in the hollow shaft.
  • the oil supply unit is disposed outside the hollow shaft.
  • the transmission device comprises two switching devices, which can each switch two idler gears of a countershaft.
  • the switching devices are actuated via two actuating devices from the interior of the countershaft designed as a hollow shaft.
  • An internal actuation of the switching devices or the switching elements requires a smaller radial space for the transmission, due to the radially inwardly arranged actuators.
  • the space within the shaft is limited, so that the dimensioning of the actuator must be adapted to these predetermined space conditions.
  • the present invention is based on the object to provide an arrangement for actuating at least one switching device of a transmission of the type described above, which applies the required actuation energy with the lowest possible power consumption.
  • the actuating device at least one energy storage or the like for temporarily storing Activation energy is assigned.
  • the actuating device comprises at least one electromechanical actuator, which is coupled via at least one spring element or the like to the switching device.
  • the energy applied by the electromechanical actuator can be stored. Since the clamping of the spring element can be started before the switching time, thus more time is available for applying the actuation energy in the arrangement according to the invention. Consequently, the actuator can be made smaller. In addition, therefore, the power and the transmission electronics of the actuator can be dimensioned correspondingly smaller. In addition, the vehicle electrical system load in the vehicle advantageously drops as a result.
  • the switching device or the switching element is associated with at least one detent or the like for holding the switching device in a neutral position and / or in a switching position.
  • the required actuation energy can be applied in the simplest way even before the switching time by the actuator without a circuit.
  • the spring element z. B. is designed as a compression spring and a tension spring. In this way, the actuation energy in both Directions are saved. It is also possible that two separate spring elements are used. You may also be able to use other types of energy storage.
  • the lock may comprise at least one housing-side locking element or the like, which can be brought to hold the neutral position and / or the switching position with at least one switch device side recess or the like in operative connection.
  • the locking element can also be designed as a latching element or the like.
  • a locking element can be assigned to two recesses on the switching element or on the switching device, which correspond to the neutral position and the switching position of the switching element.
  • each locking element on the switching device and the recesses can be arranged on the housing side.
  • the actuation of the locking element can be carried out, for example, as a function of the position of the actuator of the actuating device and / or the force or the torque of the actuator. It is also conceivable that a separate or additional actuator is provided for actuating each locking element.
  • a switching claw switching device in its switching position or even in its neutral position by a claw undercut or the like is held.
  • positive and / or frictional switching devices can be used as a single or double switching element.
  • an electromechanical actuator may preferably be provided in the form of an electric motor with a spindle drive a linear actuator.
  • a position- and / or force-controlled or -controlled electric motor can be used.
  • the spindle drive can be designed with or without self-locking.
  • hydraulically or pneumatically actuated actuators can be used in the actuator assembly according to the invention.
  • the actuator can be fixed to the housing or can also be arranged to rotate with the shaft.
  • a so-called modular construction of the arrangement proposed according to the invention for actuating the switching devices can be used.
  • the actuators and the associated power and / or control electronics can also be accommodated in the module.
  • the actuator is connected via a rotary transformer, such as a slip ring, an inductive transformer or the like, is connected to the associated control unit, and this rotary transformer can be accommodated in the module.
  • Fig. 1 is a schematic view of a first embodiment of an inventive arrangement
  • Fig. 2 is a schematic view of a second embodiment of the arrangement.
  • FIGS. 1 and 2 schematically show two different embodiments of an arrangement for actuating a switching device of a transmission, wherein the individual components are indicated only schematically.
  • the arrangement according to the invention can, irrespective of the respective variant, be applied to any desired gearboxes, e.g. Double clutch transmissions, automated manual transmissions, planetary gears or the like, can be used.
  • the type of switching device and the actuators can be chosen arbitrarily, the exemplary embodiments are described using an electromechanical actuator.
  • the actuating device 1 provided as a linear positioning unit is preferably at least partly in a shaft, e.g. a countershaft of a dual clutch transmission arranged.
  • the actuating device 1 is connected via a e.g. housing-side mounted control unit 1 1 driven to operate, for example, a switching device 2, such as a shift claw. With the switching device 2, at least one of the shaft associated gear tooth can be switched.
  • the actuator 1 comprises in the illustrated embodiments as an electromechanical actuator, an electric motor 3 with a spindle drive 4.
  • the spindle drive 4 is coupled according to the invention via at least one energy store with the switching device 2.
  • the applied by the electric motor 3 actuation energy in the example formed as a spring element 5 energy storage can be cached before the switching device 2 is actuated.
  • the electromechanical actuator is not suitable for the actuation of must be designed, but with the help of one or more spring elements mechanical energy can release very quickly. Consequently, the actuator can be made smaller, as this has more time available for tensioning the spring element, as would be acceptable for direct operation of the switching device.
  • the switching device 2 is assigned a detent for holding the switching device 2 in a neutral position 6 and in a switching position 7.
  • the lock comprises a housing-side locking element 8, which can be brought into positive engagement or latched to hold the neutral position 6 or the switching position 7 with a corresponding recess 9, 10.
  • the recesses 9, 10 are provided on the switching device 2.
  • the locking element 8 is in positive engagement with the recess 9, which corresponds to the neutral position 6 of the switching device 2.
  • the actuating energy which is applied by the electric motor 3, are stored by the spring element 5 by the spring element 5 is tensioned. Since the switching device 2 is initially held in the neutral position by the locking element 8, the actuating energy can be applied to the spring element 5. Only when the switching command occurs, the actuation energy can be released very quickly by the spring element 5 by releasing the lock.
  • the spring element 5 acts as a compression spring.
  • each locking element 8, 8 ' can be carried out independently of the respective embodiment depending on the position of the actuator or in dependence of the force or the torques of the actuator, wherein the actuating direction 1 of the respective locking element 8, 8' by a double arrow in the figures 1 and 2 is indicated.
  • each locking element 8, 8 ' may be spring loaded, so that it can engage in the respective recess 9, 10.
  • the actuation dependent on the actuator can for example take place in that upon reaching a certain position, a certain force or a certain torque, for example by positive engagement or the like, a corresponding actuation of the respective locking element 8, 8 'takes place. It is also possible that a separate actuator for example, each locking element 8, 8 'is provided to operate it when needed.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Gear-Shifting Mechanisms (AREA)

Abstract

L'invention concerne un ensemble permettant l'actionnement d'au moins un mécanisme de changement de vitesse d'une boîte de vitesses, lequel ensemble comprend un dispositif d'actionnement (1) placé au moins partiellement à l'intérieur d'un arbre auquel est associée au moins une roue dentée correspondant à un rapport à passer. Selon l'invention, au moins un accumulateur d'énergie, destiné à stocker temporairement l'énergie d'actionnement, est associé au dispositif d'actionnement (1).
PCT/EP2009/052015 2008-03-13 2009-02-20 Ensemble permettant l'actionnement d'au moins un mécanisme de changement de vitesse d'une boîte de vitesses WO2009112345A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200810000635 DE102008000635A1 (de) 2008-03-13 2008-03-13 Anordnung zur Betätigung zumindest einer Schalteinrichtung eines Getriebes
DE102008000635.1 2008-03-13

Publications (1)

Publication Number Publication Date
WO2009112345A1 true WO2009112345A1 (fr) 2009-09-17

Family

ID=40888255

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2009/052015 WO2009112345A1 (fr) 2008-03-13 2009-02-20 Ensemble permettant l'actionnement d'au moins un mécanisme de changement de vitesse d'une boîte de vitesses

Country Status (2)

Country Link
DE (1) DE102008000635A1 (fr)
WO (1) WO2009112345A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11300202B2 (en) 2017-01-23 2022-04-12 Zf Friedrichshafen Ag Device for moving a shifting element, and transmission

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB201207460D0 (en) * 2012-04-30 2012-06-13 Univ Greenwich A servomechanism
DE102012223792A1 (de) * 2012-12-19 2014-06-26 Zf Friedrichshafen Ag Schalteinrichtung für ein Planetengetriebe
EP2886911B1 (fr) 2013-12-20 2016-08-03 BorgWarner Inc. Ensemble actionneur de changement de vitesse sous charge de ressort ayant un mécanisme de retenue
DE102020122657A1 (de) 2020-08-31 2022-03-03 Schaeffler Technologies AG & Co. KG Schalteinrichtung und Verfahren zum Schalten einer Schalteinrichtung

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1884595A (en) * 1931-05-11 1932-10-25 Norman E Moxley Automatic variable speed transmission
DE894357C (de) * 1951-08-05 1953-10-22 Hermann Dr-Ing Klaue Mechanisches Kraftwagengetriebe mit selbsttaetig schaltender Motorkupplung
DE1186353B (de) * 1959-12-28 1965-01-28 Getrag Getriebe Zahnrad Stirnraederwechselgetriebe fuer Motorraeder, insbesondere Mopeds und Roller
DE2540936A1 (de) * 1975-09-13 1977-03-24 Gewerk Eisenhuette Westfalia Fernschaltbares getriebe
DE3316575A1 (de) * 1983-05-06 1984-11-08 Fichtel & Sachs Ag, 8720 Schweinfurt Schalteinrichtung fuer wechselgetriebe von kraftfahrzeugen, insbesondere von zweirad-kraftfahrzeugen
US5301565A (en) * 1987-02-26 1994-04-12 Weismann Peter H Transmission
DE10051218A1 (de) * 2000-10-16 2002-04-25 Zahnradfabrik Friedrichshafen Schaltvorrichtung eines Getriebes
US20030047026A1 (en) * 2000-02-28 2003-03-13 Christian Hoffmann Automated gear drive device, in particular for motor vehicle
DE102006009606A1 (de) * 2006-03-02 2007-09-06 Zf Friedrichshafen Ag Elektromagnetische Schalteinrichtung mit Linearmotor

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4325964A1 (de) 1993-07-19 1995-01-26 Imre Dr Techn Szodfridt Hydraulisch geschaltete Kurzhub-Synchronisierung
DE10206584A1 (de) 2001-07-15 2003-09-04 Richard Boisch Schaltgetriebe mit reduzierter Anzahl von Schaltelementen
DE10302502B4 (de) 2003-01-23 2016-08-11 Zf Friedrichshafen Ag Gangschalteinrichtung für ein Kraftfahrzeug
DE102006049274A1 (de) 2006-10-19 2008-04-30 Zf Friedrichshafen Ag Vorrichtung zum Betätigen eines als Losrad ausgeführten Zahnrades einer Getriebeeinrichtung

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1884595A (en) * 1931-05-11 1932-10-25 Norman E Moxley Automatic variable speed transmission
DE894357C (de) * 1951-08-05 1953-10-22 Hermann Dr-Ing Klaue Mechanisches Kraftwagengetriebe mit selbsttaetig schaltender Motorkupplung
DE1186353B (de) * 1959-12-28 1965-01-28 Getrag Getriebe Zahnrad Stirnraederwechselgetriebe fuer Motorraeder, insbesondere Mopeds und Roller
DE2540936A1 (de) * 1975-09-13 1977-03-24 Gewerk Eisenhuette Westfalia Fernschaltbares getriebe
DE3316575A1 (de) * 1983-05-06 1984-11-08 Fichtel & Sachs Ag, 8720 Schweinfurt Schalteinrichtung fuer wechselgetriebe von kraftfahrzeugen, insbesondere von zweirad-kraftfahrzeugen
US5301565A (en) * 1987-02-26 1994-04-12 Weismann Peter H Transmission
US20030047026A1 (en) * 2000-02-28 2003-03-13 Christian Hoffmann Automated gear drive device, in particular for motor vehicle
DE10051218A1 (de) * 2000-10-16 2002-04-25 Zahnradfabrik Friedrichshafen Schaltvorrichtung eines Getriebes
DE102006009606A1 (de) * 2006-03-02 2007-09-06 Zf Friedrichshafen Ag Elektromagnetische Schalteinrichtung mit Linearmotor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11300202B2 (en) 2017-01-23 2022-04-12 Zf Friedrichshafen Ag Device for moving a shifting element, and transmission

Also Published As

Publication number Publication date
DE102008000635A1 (de) 2009-09-17

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