WO2009015995A1 - Actionneur de boîte de vitesses pour actionner un dispositif de commutation d'une boîte de vitesses - Google Patents

Actionneur de boîte de vitesses pour actionner un dispositif de commutation d'une boîte de vitesses Download PDF

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Publication number
WO2009015995A1
WO2009015995A1 PCT/EP2008/058680 EP2008058680W WO2009015995A1 WO 2009015995 A1 WO2009015995 A1 WO 2009015995A1 EP 2008058680 W EP2008058680 W EP 2008058680W WO 2009015995 A1 WO2009015995 A1 WO 2009015995A1
Authority
WO
WIPO (PCT)
Prior art keywords
switching
movement
shift
spindle
shift finger
Prior art date
Application number
PCT/EP2008/058680
Other languages
German (de)
English (en)
Inventor
Eckhardt LÜBKE
Markus Fuchs
Walter Müller
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 WO2009015995A1 publication Critical patent/WO2009015995A1/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
    • 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
    • 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
    • F16H2061/2838—Arrangements with single drive motor for selecting and shifting movements, i.e. one motor used for generating both movements
    • 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
    • F16H2061/2853—Electromagnetic solenoids
    • 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
    • F16H2061/2884—Screw-nut devices

Definitions

  • Gearbox actuator for actuating a switching device of a gearbox
  • the present invention relates to a transmission actuator according to the closer defined in the preamble of claim 1. Art.
  • a transmission with an electromechanical transmission actuator is known.
  • the gearbox has a first electric motor for performing a selection movement and a second electric motor for exercising a switching movement in a switching device in a transmission housing of a transmission of a vehicle.
  • Each of the electric motors drives a separate ball screw.
  • the two ballscrews are arranged parallel to each other.
  • the selection movement is effected in the known Geretereteeller by the axial movement of the ball nut on the ball screw, which is driven by the first electric motor.
  • the switching movement is effected by the axial movement of the ball nut on the ball screw, which is driven by the second electric motor.
  • two drive means are required to perform the selection movement and the switching movement of the transmission can.
  • the present invention is based on the object to propose a transmission actuator of the type described above, which has the smallest possible space requirement and is inexpensive to produce.
  • a transmission actuator for operating a switching device of a transmission of a vehicle, in which a common drive means for performing a selection movement and a switching movement is provided. In this way, otherwise required components and components can be saved so as to achieve a considerable space and cost advantage with at least equivalent functionality of the transmission actuator.
  • the drive device of the transmission actuator proposed according to the invention can be driven, for example, electrically by an electric motor, but also pneumatically or hydraulically. There are also other types of drive conceivable.
  • the drive device comprises an electrically driven spindle drive, which has a shift finger which can be switched over to execute the selection movement and the switching movement as the spindle nut.
  • the rotational movement of the spindle can be converted into an axial movement or longitudinal movement or in a rotational movement of the shift finger.
  • the transmission actuator according to the invention can realize depending on the switching position of the shift finger with only one drive means both the selection movement and the switching movement.
  • a switching device or the like is provided.
  • the switching device may have an actuating element for adjusting a switching element between a first end position and a second end position.
  • Both the mode of operation and the type of function can be chosen as desired.
  • an electromagnetic, hydraulic or pneumatic actuation can take place.
  • the actuating element is designed as an electromagnetically operated plunger, which can adjust the spring-loaded, mounted on the shift finger switching element between the two end positions. If the electromagnetic plunger on the housing side and the switching element is arranged switching finger side, for example, a grinding or rolling contact between the plunger and the switching element may be provided. It is also conceivable that another, for example, reverse arrangement of the components described is realized.
  • the shift finger in a first end position of the switching element is provided that the shift finger is positively connected to a housing of the drive device in connection. As a result, the shift finger is moved in the axial direction of the spindle as soon as the spindle is rotated.
  • a second end position of the switching element of the shift finger can be positively associated with the spindle of the spindle drive in connection. In this second position, the shift finger is set in rotation when the gear actuator is activated. An axial movement does not execute the shift finger in this position.
  • the switching between the two end positions corresponds to the switching between the selection movement and the switching movement of the transmission actuator.
  • the corresponding recesses are provided on the housing and the spindle. These recesses can be configured as desired.
  • the spindle has a groove running in the axial direction.
  • z. B. non-positive connections or the like possible.
  • a next advantageous development of the invention can provide that the shift finger has at least one blocking element or the like for blocking the non-selected shift rails during the shift operation. In this way it is prevented that when switching a certain shift rail no further shift rail is actuated unintentionally.
  • such a blocking element can be arranged such that the movement of the blocking element is decoupled in the direction of the switching movement of the movement of the shift finger. This means that the blocking element is only moved when selecting with the shift finger.
  • a possible embodiment of the invention may provide that the spindle drive of the transmission actuator according to the invention is arranged, for example, transversely to the shift rails of the switching device.
  • the selection movement can be realized in that the shift finger is brought into positive engagement with the housing via the switching element. This corresponds to the first end position of the switching element.
  • the rotation of the e.g. an electric motor driven spindle of the shift finger performs an axial movement. Due to the axial movement, a desired shift rail position can be selected. So that the switching element can be positively connected after selection in the rotational direction with the groove provided as a recess in the spindle, it should be ensured that the selection path is integer divisible by the pitch of the spindle. This ensures that the rotational angular position of the spindle and the switching element at the beginning and at the end of the selection process is identical.
  • the shift finger After the end of the selection movement of the shift finger can be positively brought by the corresponding operation of the switching element in connection with the spindle.
  • the rotation of the spindle which is driven by an electric motor, for example, the shift finger performs a shift movement. from which is converted into a linear movement of the respective shift rail or shift rod, which has been previously selected in the selection process.
  • the switching movement is realized in the transmission actuator.
  • a reduction gear or the like is interposed between the drive motor and the spindle of the drive means .
  • a planetary gear can be used as a reduction gear.
  • a further possible embodiment of the invention may provide that the drive device is arranged with the spindle approximately parallel to the shift rails in the switching device. This means that the spindle is arranged rotated approximately 90 ° in comparison to the previously described embodiment variant. There are also other arrangement options conceivable.
  • the shift finger is brought into positive engagement with the housing via the correspondingly actuated changeover element. This corresponds to the first end position of the switching element.
  • the rotation of the spindle of the shift finger performs a corresponding axial movement, which is forwarded to the shift rod.
  • the switching device There- by the insertion of the desired gear is realized with the switching device.
  • the above-described embodiment has the advantage that the translation of the spindle thread is used with and thus can be dispensed with a reduction gear between the drive motor and the spindle of the drive device. This allows a further reduction in the cost of the transmission actuator.
  • Fig. 1 is a schematic, three-dimensional partial view of a
  • Figure 2 is a schematic, three-dimensional partial view of the gear actuator in a rotated by 90 ° arrangement with respect to Fig. 1.
  • Fig. 3 is a further schematic, three-dimensional partial view of the transmission actuator.
  • FIGS. 1 to 3 a possible embodiment of a transmission actuator according to the invention for actuating a switching device of a transmission of a vehicle, not shown, is shown in each case.
  • Figs. 1 and 2 differ only in that they show the gear actuator rotated at an angle of about 90 °.
  • the proposed gear actuator comprises a drive device 1, which controls both a selection movement and a shift movement. realized in the switching device. In this way, in contrast to known gearboxes no further drive device is needed.
  • the drive device 1 is formed in the embodiment shown here as an electrically driven spindle drive 2.
  • the spindle drive 2 is driven by an electric motor 3, so that a spindle 4 of the spindle drive 2 is set in rotation when the electric motor 3 is in operation.
  • the spindle 4 is engaged with a spindle nut, which is formed in the embodiment shown as a shift finger 5.
  • the shift finger 5 has an extension 13, can be selected and switched with the not shown switching rails of the switching device.
  • a switching device is provided on the shift finger 5.
  • the switching device comprises an actuating element for adjusting a switching element 7 between a first end position and a second end position.
  • the switching element 7 is indicated only in Fig. 3.
  • the switching device is arranged above the spindle 4, wherein the switching means in Fig. 3 is provided laterally on the spindle 4.
  • the actuating element is designed as an electromagnetically operated plunger 6, which actuates the switching element 7 for adjusting.
  • the switching element 7 is mounted by means of a spring not shown movable on the shift finger 5.
  • the shift finger 5 In the first end position of the switching element 7, the shift finger 5 is brought into positive connection with a merely indicated housing 8 of the drive device 1 in connection. A corresponding recess in the housing 8 is not shown in the figures.
  • the second end position of the switching element 7 of the shift finger 5 In the second end position of the switching element 7 of the shift finger 5 is positively connected via the switching element 7 with the spindle 4.
  • a groove 9 is provided in the spindle 4, wherein in Fig. 3, the groove 9 is indicated by way of example, in which the switching element can engage positively to connect the shift finger 5 with the spindle 4 rotatably.
  • a blocking element 10 is arranged on the shift finger 5 in each case.
  • the blocking element 10 serves to block the non-selected shift rails during the switching movement of the shift finger 5.
  • the blocking element 10 is arranged on both sides of the extension 13 of the shift finger 5, so that the movement of the blocking element 10 in the direction of the switching movement of the movement of the shift finger 5 decoupled is.
  • the blocking element 10 is moved only with a selection movement of the shift finger 5 with.
  • the transmission actuator shown in Fig. 1 is arranged with its spindle drive 2 transversely to the shift rails of the switching device not shown.
  • the selection movement of the gear actuator is realized in the first end position of the switching element 7, in which the shift finger 5 is positively connected to the housing 8 of the drive device 1.
  • the shift finger 5 is axially moved by the rotation of the spindle 4.
  • the shift finger 5 is assigned to the switching rail to be switched.
  • the switching operation is realized in this arrangement possibility by the second end position of the switching element 7.
  • the shift finger 5 In this position, the shift finger 5 is in positive engagement with the spindle 4, so that by the rotation of the Spindle 4 and the shift finger 5 performs a rotational movement, which allows a linear movement of the associated shift rail. In this way, the selected gear is switched by the gearbox.
  • a reduction gear 1 1 is provided between the electric motor 3 and the spindle 4 in this embodiment.
  • the gear actuator with respect to FIG. 1 is arranged rotated by 90 °.
  • the selection movement of the gear actuator is realized in the second end position of the switching element 7.
  • the shift finger 5 is in positive engagement with the spindle 4.
  • the shift finger 5 performs by the rotation of the spindle 4 from a circular motion, so that the shift finger 5 can be assigned to a switching rail to be switched.
  • the switching movement can be realized in this arrangement possibility in the first end position of the switching element 7.
  • the shift finger 5 is in positive engagement with the housing 8 of the drive device 1.
  • the shift finger 5 on rotation of the spindle 4 perform an axial movement, so that the shift finger 5 can operate the associated shift rail to shift the gear.
  • the coupled with the shift finger 5 blocking element 10 can be moved in the selection movement and decoupled in the switching movement of the shift finger 5 of this, so that the adjacent shift rails to be switched shift rail are blocked.
  • the blocking element 10 has a slot 12, which is aligned in the circuit movement direction, so that the shift finger 5 can be moved without the blocking element 10 to move.

Landscapes

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

Abstract

L'invention concerne un actionneur de boîte de vitesses pour actionner un dispositif de commutation d'une boîte de vitesses d'un véhicule automobile, un dispositif d'entraînement commun (1) étant prévu pour l'exécution d'un mouvement de sélection et un mouvement de commutation.
PCT/EP2008/058680 2007-08-02 2008-07-04 Actionneur de boîte de vitesses pour actionner un dispositif de commutation d'une boîte de vitesses WO2009015995A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102007036336.4 2007-08-02
DE102007036336A DE102007036336A1 (de) 2007-08-02 2007-08-02 Getriebesteller zum Betätigen einer Schalteinrichtung eines Getriebes

Publications (1)

Publication Number Publication Date
WO2009015995A1 true WO2009015995A1 (fr) 2009-02-05

Family

ID=39768907

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2008/058680 WO2009015995A1 (fr) 2007-08-02 2008-07-04 Actionneur de boîte de vitesses pour actionner un dispositif de commutation d'une boîte de vitesses

Country Status (2)

Country Link
DE (1) DE102007036336A1 (fr)
WO (1) WO2009015995A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011017663A1 (de) 2011-04-28 2012-10-31 Zf Friedrichshafen Ag Schalteinrichtung
DE102013207871A1 (de) * 2013-04-30 2014-10-30 Schaeffler Technologies Gmbh & Co. Kg Getriebeaktor für ein Kraftfahrzeuggetriebe sowie Steuerung zur Ansteuerung eines Getriebeaktors
DE102013104552A1 (de) 2013-05-03 2014-11-06 Getrag Getriebe- Und Zahnradfabrik Hermann Hagenmeyer Gmbh & Cie Kg Schaltanordnung für ein Kraftfahrzeuggetriebe
DE102015118952A1 (de) * 2015-11-05 2017-05-11 Knorr-Bremse Systeme für Nutzfahrzeuge GmbH Getriebestelleinrichtung für ein automatisiertes Schaltgetriebe eines Fahrzeuges

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2094602T3 (es) * 1993-07-31 1997-01-16 Zahnradfabrik Friedrichshafen Mecanismo de seleccion para cajas de cambios de varias marchas.
EP0864782A1 (fr) * 1997-03-12 1998-09-16 Heidemann Verwaltungsgesellschaft mbH Actionneur électro-mécanique pour boíte de vitesses
DE102004039067A1 (de) * 2004-08-12 2006-02-23 Zf Friedrichshafen Ag Betätigungseinrichtung für ein automatisiertes mehrstufiges Schaltgetriebe eines Motorfahrzeugs
DE102004039068A1 (de) * 2004-08-12 2006-02-23 Zf Friedrichshafen Ag Betätigungseinrichtung für ein automatisiertes mehrstufiges Schaltgetriebe eines Motorfahrzeugs
WO2006076877A1 (fr) * 2005-01-20 2006-07-27 Luk Lamellen Und Kupplungsbau Beteiligungs Kg Actionneur de transmission de vehicule destine a actionner une transmission de vehicule
DE102006054901A1 (de) * 2005-12-15 2007-06-28 Luk Lamellen Und Kupplungsbau Beteiligungs Kg Getriebeaktor für ein Kraftfahrzeuggetriebe sowie Kraftfahrzeug-Getriebeeinrichtung mit einem Getriebeaktor
DE102006054907A1 (de) * 2005-12-15 2007-06-28 Luk Lamellen Und Kupplungsbau Beteiligungs Kg Getriebeaktor für ein Kraftfahrzeuggetriebe sowie Kraftfahrzeug-Getriebeeinrichtung mit einem Getriebeaktor

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10143325A1 (de) 2001-09-05 2003-03-20 Zahnradfabrik Friedrichshafen Getriebe mit elektromechanischen Getriebesteller
DE102004038955A1 (de) * 2003-08-16 2005-03-10 Luk Lamellen & Kupplungsbau Betätigungsvorrichtung
DE102006030995A1 (de) * 2005-07-23 2007-01-25 Luk Lamellen Und Kupplungsbau Beteiligungs Kg 1-Motor-Getriebeaktor für eine Kraftfahrzeuggetriebeeinrichtung, Anordnung aus einem 1-Motor-Getriebeaktor, einer Steuereinrichtung und einer Auswerteeinrichtung, Kraftfahrzeuggetriebeeinrichtung sowie Verfahren zur Ermittlung einer Referenzstellung eines Schaltfingers eines 1-Motor-Getriebeaktors
DE102006054906A1 (de) * 2005-12-15 2007-06-28 Luk Lamellen Und Kupplungsbau Beteiligungs Kg Getriebeaktor für ein Kraftfahrzeuggetriebe sowie Kraftfahrzeug-Getriebeeinrichtung mit einem Getriebeaktor

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2094602T3 (es) * 1993-07-31 1997-01-16 Zahnradfabrik Friedrichshafen Mecanismo de seleccion para cajas de cambios de varias marchas.
EP0864782A1 (fr) * 1997-03-12 1998-09-16 Heidemann Verwaltungsgesellschaft mbH Actionneur électro-mécanique pour boíte de vitesses
DE102004039067A1 (de) * 2004-08-12 2006-02-23 Zf Friedrichshafen Ag Betätigungseinrichtung für ein automatisiertes mehrstufiges Schaltgetriebe eines Motorfahrzeugs
DE102004039068A1 (de) * 2004-08-12 2006-02-23 Zf Friedrichshafen Ag Betätigungseinrichtung für ein automatisiertes mehrstufiges Schaltgetriebe eines Motorfahrzeugs
WO2006076877A1 (fr) * 2005-01-20 2006-07-27 Luk Lamellen Und Kupplungsbau Beteiligungs Kg Actionneur de transmission de vehicule destine a actionner une transmission de vehicule
DE102006054901A1 (de) * 2005-12-15 2007-06-28 Luk Lamellen Und Kupplungsbau Beteiligungs Kg Getriebeaktor für ein Kraftfahrzeuggetriebe sowie Kraftfahrzeug-Getriebeeinrichtung mit einem Getriebeaktor
DE102006054907A1 (de) * 2005-12-15 2007-06-28 Luk Lamellen Und Kupplungsbau Beteiligungs Kg Getriebeaktor für ein Kraftfahrzeuggetriebe sowie Kraftfahrzeug-Getriebeeinrichtung mit einem Getriebeaktor

Also Published As

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