EP3830454A1 - Schaltmechanismus für ein getriebe - Google Patents
Schaltmechanismus für ein getriebeInfo
- Publication number
- EP3830454A1 EP3830454A1 EP19739576.7A EP19739576A EP3830454A1 EP 3830454 A1 EP3830454 A1 EP 3830454A1 EP 19739576 A EP19739576 A EP 19739576A EP 3830454 A1 EP3830454 A1 EP 3830454A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- shift
- coupling
- switching mechanism
- actuation unit
- rods
- 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.)
- Pending
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
- F16H61/30—Hydraulic or pneumatic motors or related fluid 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
- 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
- F16H63/08—Multiple final output mechanisms being moved by a single common final actuating mechanism
-
- 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
- F16H63/24—Final output mechanisms therefor; Actuating means for the final output mechanisms each of the final output mechanisms being moved by only one of the various final actuating 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
- F16H63/28—Final output mechanisms therefor; Actuating means for the final output mechanisms two or more final actuating mechanisms moving the same final output mechanism
-
- 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
- F16H63/32—Gear shift yokes, e.g. shift forks
-
- 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
- F16H63/32—Gear shift yokes, e.g. shift forks
- F16H2063/321—Gear shift yokes, e.g. shift forks characterised by the interface between fork body and shift rod, e.g. fixing means, bushes, cams or pins
-
- 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
- F16H63/32—Gear shift yokes, e.g. shift forks
- F16H2063/322—Gear shift yokes, e.g. shift forks characterised by catches or notches for moving the fork
Definitions
- the invention relates to a switching mechanism for a transmission, in particular a switching mechanism for a manual transmission of a vehicle.
- Shift mechanisms for transmissions which perform a shifting of gears via shift rods in a shift transmission in order to shift transmission components, for example gearwheels or drivers, via specific shift forks.
- the shift rods are usually arranged in one direction parallel to the transmission transmission shafts, and are arranged parallel to one another.
- the shift rods are arranged parallel to each other in the direction of the transmission shafts, they consume a large amount of space, which is becoming increasingly scarce, especially in view of an increasing number of assemblies and components.
- the invention is therefore based on the object of providing a shift mechanism and a shifting method for a transmission which overcome the above disadvantage, the shift mechanism being intended to have a compact design.
- a shift mechanism for a transmission has a shift actuation unit which is designed to generate an axial shift movement, at least two shift forks for shifting transmission components for shifting gears, at least one shift rod which is designed to be the axial one
- Shift actuator and one of the at least two shift forks are provided.
- Shift forks can optionally be moved through a shift rod without the installation space on the side of the shift rod being increased by the provision of shift rods located next to one another.
- At least two shift rods are provided, the shift forks are each connected to one of the at least two shift rods, and the at least two coupling mechanisms are designed to set up a mechanical coupling between the shift actuation unit and one of the at least two shift rods.
- Coupling mechanism ' since the shift forks can be arranged on shift rods of different lengths, the coupling mechanisms can be combined in one place, which makes control easier.
- Coupling mechanisms can be provided in a common housing.
- the at least two shift rods are arranged coaxially with one another.
- the shift rod is connected to the shift actuation unit and the at least two coupling mechanisms are designed to set up a mechanical coupling between the at least one shift rod and one of the at least two shift forks.
- the shift actuation unit has a
- Shift actuation actuator which is movable along a shift actuation axis, and the at least one shift rod and the at least two
- Coupling mechanisms are aligned with the shift actuation axis.
- Coupling mechanisms each have coupling elements which are designed to establish a non-positive connection between the shift actuation unit and one of the at least two shift rods, or between the at least one shift rod and one of the at least two shift forks.
- the coupling elements can, for example, simply set up a non-positive connection by rotating them relative to one another or by spreading one of the coupling elements with respect to another of the coupling elements.
- the at least two coupling mechanisms each have coupling elements which are designed to establish a positive connection between the shift actuation unit and one of the at least two shift rods, or between the at least one shift rod and one of the at least two shift forks.
- the coupling elements can, for example, by twisting one another or by spreading one of the coupling elements with respect to another of the Coupling elements simply set up a positive connection that the
- the coupling elements are designed to set up the positive connection according to the principle of a bayonet lock.
- the coupling elements based on the principle of the bayonet lock enable simple and secure coupling for transmission of the switching movement in both axial directions.
- Switch actuation actuator a hydraulically actuated switch actuation actuator, an electrically actuated switch actuator or an electromechanically actuated switch actuator, the switching mechanism can be controlled simply and / or inexpensively depending on the ambient conditions, the general conditions, etc.
- a method for shifting a gear in a transmission with the shift mechanism comprises the steps of: establishing the mechanical coupling between the shift actuation unit and one of the at least two shift rods; or creating the mechanical coupling between the at least one shift rod and one of the at least two shift forks and activating the shift actuation unit in order to establish a gear-specific connection within the transmission via the specific shift fork.
- This method in which the at least one shift rod and the at least two shift forks are coupled for a gear-specific connection, enables the axial alignment of the coupling mechanisms and the shift rods with respect to one another, so that a space-saving construction is possible.
- Fig. 1 is a schematic diagram of an embodiment of an inventive
- Fig. 2 is a schematic diagram of another embodiment of the switching mechanism according to the invention.
- Fig. 3 is a flowchart of a method for shifting a gear with the
- the switching mechanism 1 has a switching actuation unit 2 which generates an axial switching movement.
- the shift actuation unit 2 has a pneumatically actuable shift actuation actuator.
- the shift actuation unit 2 has a hydraulically actuated shift actuation actuator, an electrically actuated shift actuation actuator or an electromechanically actuated shift actuation actuator.
- Shift actuation actuator is movable along a shift actuation axis 3 in order to generate the axial shift movement.
- the switching mechanism 1 also has two shift forks 4a, 4b.
- the shift forks 4a, 4b shift transmission components in order to shift gears in the transmission. In alternative embodiments, more than two shift forks 4a, 4b can also be provided.
- a switching rod 5 is provided in the switching mechanism 1, which the axial switching movement from the shift operating unit 2 to the two Shift forks 4a, 4b transmits.
- the shift rod 5 with the
- the switching mechanism 1 has two coupling mechanisms 6a, 6b. With these two coupling mechanisms 6a, 6b, a mechanical coupling between the shift actuation unit 2 and one of the two shift forks 4a, 4b can optionally be set up. Only one of the shift forks 4a, 4b or both of the shift forks 4a, 4b can be connected to the shift actuating unit 2 via the shift rod 5. In the alternative embodiment with more than two
- Shift forks 4a, 4b can have several suitable for the desired shifting
- Shift forks are connected to it.
- the coupling mechanisms 6a, 6b and the shift rod 5 are arranged axially to one another, that is to say aligned along the shift actuation axis 3 and are also aligned with the shift actuation axis 3.
- the shift actuation unit 2 in a modified arrangement of the shift actuation unit 2, the
- Coupling mechanisms 6a, 6b and the shift rod 5 are not aligned or axially arranged to the shift actuation axis 3 to by such an arrangement of the
- Shift actuation unit 2 which can possibly plunge into a free space in the transmission, to save further installation space.
- the coupling mechanisms 6a, 6b each have coupling elements 7a, 7b, by means of which a positive connection is established between the shift rod 5 and the two shift forks 4a, 4b.
- the positive connection is set up according to the principle of a bayonet lock.
- the bayonet-type connection enables transmission of the axial switching movement in both
- the coupling elements 7a, 7b can also be designed in a different form in order to implement the positive connection.
- Shift rod 5 can be provided and two inwardly facing walls, each with an opening complementary to the non-rotationally symmetrical collar, can be provided on the side of the shift fork 4a, 4b.
- the coupling elements 7a, 7b can also be designed to establish a non-positive connection between the shift rod 5 and in each case one of the two shift forks 4a, 4b.
- Shift rod 5 directed projection are generated on the shift fork 4a, 4b.
- a spreading apart from one of the coupling elements 7a, 7b so that a frictional force arises between the coupling elements 7a, 7b is alternatively possible.
- FIG. 2 shows a schematic diagram of another embodiment of the switching mechanism 1 according to the invention. This embodiment differs from that
- Shift rods 5a, 5b are provided.
- the coupling mechanisms 6a, 6b each establish a mechanical coupling between the shift actuation unit 2 and the two
- the coupling mechanisms 6a, 6b also have the coupling elements 7a, 7b in this embodiment, which have a positive connection, or alternatively a non-positive connection, between the
- the coupling mechanisms 6a, 6b are arranged in a common housing 8. Alternatively, they can also be arranged in separate housings or without a special housing. In this embodiment, the shift forks 4a, 4b are each connected to the shift rods 5a, 5b.
- the two shift rods 5a, 5b are arranged coaxially with one another.
- the shift rods 5a, 5b can also be arranged one after the other in the axial direction.
- the coupling mechanisms 6a, 6b and the shift rods 5a, 5b are arranged axially aligned with one another along the shift actuation axis 3.
- step S1 shows a flow chart of a method for shifting a gear with the shift mechanism 1 according to the invention.
- step S1 depending on the embodiment of the switching mechanism 1, the mechanical coupling between the shift rod 5 and one of the at least two shift forks 4a, 4b (FIG. 1) or between the
- Shift actuator 2 and one of the two shift rods 5a, 5b (Fig. 2) manufactured. Subsequently, the shift actuation unit 2 is activated in step S2 in order to generate the axial shift movement and to establish a gear-specific connection within the transmission via the specific shift fork 4a, 4b.
- the coupling elements 7a, 7b are rotated relative to one another in order to create the mechanical coupling.
- a positive or non-positive coupling is generated.
- the coupling elements 7a, 7b are rotated relative to one another in order to create the mechanical coupling.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gear-Shifting Mechanisms (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102018212697.6A DE102018212697A1 (de) | 2018-07-30 | 2018-07-30 | Schaltmechanismus für ein Getriebe |
| PCT/EP2019/068607 WO2020025282A1 (de) | 2018-07-30 | 2019-07-10 | Schaltmechanismus für ein getriebe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP3830454A1 true EP3830454A1 (de) | 2021-06-09 |
Family
ID=67262311
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP19739576.7A Pending EP3830454A1 (de) | 2018-07-30 | 2019-07-10 | Schaltmechanismus für ein getriebe |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20210317912A1 (de) |
| EP (1) | EP3830454A1 (de) |
| CA (1) | CA3108001A1 (de) |
| DE (1) | DE102018212697A1 (de) |
| WO (1) | WO2020025282A1 (de) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3559516B1 (de) * | 2016-12-23 | 2022-03-02 | Volvo Truck Corporation | Schaltanordnung für das getriebe eines fahrzeugs |
| US12259040B1 (en) * | 2023-11-07 | 2025-03-25 | Dana Heavy Vehicle Systems Group, Llc | Electromechanical actuator cartridge |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT1208768B (it) * | 1983-06-17 | 1989-07-10 | Iveco Fiat | Dispositivo per la selezione e per l innesto marce in un cambio di un autoveicolo |
| CS258206B1 (en) * | 1986-02-24 | 1988-07-15 | Vladimir Vaclavik | Device for gear shifting and blocking |
| DE19920064C2 (de) * | 1999-05-03 | 2001-04-12 | Daimler Chrysler Ag | Zahnräderwechselgetriebe für ein Kraftfahrzeug |
| GB2394261A (en) * | 2002-10-19 | 2004-04-21 | Luk Lamellen & Kupplungsbau | Shift mechanism having a rotating drum |
| AR062923A1 (es) * | 2007-09-20 | 2008-12-17 | Martinez Ramiro Enrique | Selector secuencial |
| DE102008000072A1 (de) * | 2008-01-17 | 2009-07-23 | Zf Friedrichshafen Ag | Schaltvorrichtung für Mehrstufenschaltgetriebe von Kraftfahrzeugen |
| DE102008040207A1 (de) * | 2008-07-07 | 2010-01-14 | Zf Friedrichshafen Ag | Anordnung zum Wählen und Schalten von Gängen bei einem Schaltgetriebe eines Fahrzeuges |
| DE102013224263A1 (de) * | 2013-11-27 | 2015-05-28 | Zf Friedrichshafen Ag | Schaltvorrichtung eines mehrstufigen Schaltgetriebes |
| EP3559516B1 (de) * | 2016-12-23 | 2022-03-02 | Volvo Truck Corporation | Schaltanordnung für das getriebe eines fahrzeugs |
| CN107166027A (zh) * | 2017-06-02 | 2017-09-15 | 重庆隆旺机电有限责任公司 | 拨叉换挡机构 |
-
2018
- 2018-07-30 DE DE102018212697.6A patent/DE102018212697A1/de active Pending
-
2019
- 2019-07-10 US US17/264,642 patent/US20210317912A1/en not_active Abandoned
- 2019-07-10 CA CA3108001A patent/CA3108001A1/en not_active Abandoned
- 2019-07-10 WO PCT/EP2019/068607 patent/WO2020025282A1/de not_active Ceased
- 2019-07-10 EP EP19739576.7A patent/EP3830454A1/de active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| WO2020025282A1 (de) | 2020-02-06 |
| US20210317912A1 (en) | 2021-10-14 |
| DE102018212697A1 (de) | 2020-01-30 |
| CA3108001A1 (en) | 2020-02-06 |
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Inventor name: SCHALLER, SEBASTIAN Inventor name: KRAL, MARTIN Inventor name: SCHUDY, JUERGEN |
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