US20170152941A1 - Single-motor transmission actuator with gate for selecting and shifting gears of a motor vehicle transmission device - Google Patents

Single-motor transmission actuator with gate for selecting and shifting gears of a motor vehicle transmission device Download PDF

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Publication number
US20170152941A1
US20170152941A1 US15/127,729 US201515127729A US2017152941A1 US 20170152941 A1 US20170152941 A1 US 20170152941A1 US 201515127729 A US201515127729 A US 201515127729A US 2017152941 A1 US2017152941 A1 US 2017152941A1
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Prior art keywords
gate part
motion
gate
transmission actuator
slots
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Abandoned
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US15/127,729
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English (en)
Inventor
Volker Kretz-Busch
Maximilian Haas
Jerome Malitourne
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Schaeffler Technologies AG and Co KG
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Schaeffler Technologies AG and Co KG
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Assigned to Schaeffler Technologies AG & Co. KG reassignment Schaeffler Technologies AG & Co. KG ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: HAAS, Maximilian, KRETZ-BUSCH, VOLKER, MALITOURNE, JEROME
Publication of US20170152941A1 publication Critical patent/US20170152941A1/en
Abandoned legal-status Critical Current

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    • 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
    • F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
    • F16H59/02—Selector apparatus
    • 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
    • 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
    • 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
    • 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
    • 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
    • F16H2061/2869—Cam or crank gearing
    • 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
    • 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
    • F16H2061/308—Modular hydraulic shift units, i.e. preassembled actuator units for select and shift movements adapted for being mounted on transmission casing
    • 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
    • F16H2061/326—Actuators for range selection, i.e. actuators for controlling the range selector or the manual range valve in the transmission

Definitions

  • the present invention relates to a single-motor transmission actuator for a motor vehicle transmission device, which has a plurality of gear steps for forming gears.
  • a transmission actuator according to the invention is understood in particular to mean a transmission actuator which, operating within a motor vehicle, affects at least one of the following devices: operating, selecting and/or shifting vehicle transmission, clutch and brake.
  • gears of motor vehicle transmissions such as automated shift transmissions (ASTs), parallel shift transmissions (PSTs) or dual-clutch transmissions (DSTs) or other similar transmissions, may be engaged and disengaged by means of a transmission actuator, which in that case constitutes what is known as an external gear shifter.
  • ASTs automated shift transmissions
  • PSTs parallel shift transmissions
  • DSTs dual-clutch transmissions
  • the transmission actuator has a connecting device which couples a spindle nut with appropriate gear racks or gear wheels to bring about a shifting or selecting motion of the selector shaft.
  • a gate which has a firmly positioned first gate part with a cylindrical surface area and circumferential slots spaced apart axially on it.
  • the gate also includes a second gate part, situated so that it is can rotate or swivel, which is connected axially immovably and non-rotatingly to the selector shaft.
  • the second gate part can swivel into the respective axially spaced slots of the first gate part, depending on its axial position.
  • the gate is thus a guiding device, which limits the adjustability of the transmission actuator, that is, the adjustability of the selector shaft of the transmission actuator, essentially to an adjustability corresponding to a shift track/selection track arrangement.
  • the gate causes the rotatability of the selector shaft to depend on the axial position of said selector shaft, and/or causes the axial movability of the selector shaft to depend on the swiveled or rotary position of the selector shaft.
  • this gate on the lands positioned between the circumferential slots chamfers are provided on both sides of each slot, so that it is easier for the second gate part to swivel into the first gate part.
  • this two-sided chamfer can result in the entire connecting device being tightened, so that the function of the transmission actuator may be impaired.
  • the invention relates to a transmission actuator for a motor vehicle transmission device, in particular a single-motor transmission actuator, wherein the motor vehicle transmission device has a plurality of gear steps for forming gears.
  • the transmission actuator has a selector shaft, which is supported so that it is rotatable for shifting gears and so that it is axially movable for selecting gears.
  • the transmission actuator has a gate with a fixed-position first gate part and an axially movable and rotatable second gate part, the one gate part having slots and lands alternating in one direction and the other gate part having at least one element that is able to interact with one of the lands at a time and is movable in one of the slots at a time.
  • the at least one element In a selecting motion the at least one element is moved in a prescribed direction past the lands and slots (i.e., in particular perpendicular to the direction of the slots and lands), and in a shifting motion it is moved into one of the slots, i.e., parallel to the direction of the slots and lands).
  • An insertion chamfer is provided at least on the lands or on the element, so that when there is a collision between element and land during the shifting motion, the second gate part can be moved further in the specified direction of the selecting motion by means of the insertion chamfer and the shifting motion can be continued, whereas otherwise essentially right-angled transitions are provided, so that then in the collision between element and land during the shifting motion the second gate part is not movable contrary to the prescribed direction of the selecting motion, but rather the shifting motion is stopped.
  • the transmission actuator with gate proposed here is suitable in particular as a single-motor transmission actuator, as it is known from the as-yet unpublished DE 10 2013 207 871. This document is hereby referenced in its entirety.
  • the single-engine transmission actuator described there is to be augmented by the gate described here.
  • the present invention is also employable for other transmission actuators.
  • the single motor produces two rotation directions, which are converted by means of the connecting device to a rotary motion (shifting motion) and a linear travel motion (selecting motion) of the selector shaft.
  • a gate is provided, which ensures that the selector finger, which is positioned on the selector shaft and actuates the transmission of the motor vehicle, is located in the right position relative to the transmission.
  • a so-called free-wheel mechanism is provided in the connecting device, which enables a rotation in one direction, and when there is a rotation in the other direction it blocks this rotary motion (blocking direction).
  • an insertion chamfer to be positioned so that when there is a collision between element and land during the shifting motion the second gate part can be moved further in the specified direction of the selecting motion by means of the insertion chamfer and the shifting motion can be continued, whereas otherwise in a collision between element and land during the shifting motion the second gate part is not at all movable contrary to the prescribed direction of the selecting motion, but rather the shifting motion is stopped.
  • a tightening of the connecting device will come about and the function of the transmission actuator will also be impaired for a long time.
  • the element has a first wall pointing in a prescribed direction and an end face pointing toward the slot, there being an insertion chamfer between the end face and the first wall. Furthermore, the element has a second wall pointing opposite the prescribed direction, there being between the end face and the second wall an essential right-angled transition (90-degree angle).
  • the insertion chamfer is thus at an angle of less than 90 degrees relative to the prescribed direction, in particular between 50 and 70 degrees.
  • the insertion chamfer has a length in the direction of the shifting motion such that the second gate part is movable further in the prescribed direction by a distance beyond the length of the insertion chamfer.
  • the second gate part has the slots and lands.
  • the second gate part is positioned immovably on the selector shaft and is movable with the selector shaft relative to the fixed first gate part.
  • the second gate part is firmly connected to the selector shaft and can only be moved together with the latter, while the first gate part is fixed on the housing, so that the selector shaft is moved relative to this first gate part.
  • the second gate part has the slots and lands and is positioned coaxially to the selector shaft and extends around the selector shaft, while the slots and lands extend in a circumferential direction and the second gate part has in addition at least one track in which the at least one element of the first gate part is movable during the selecting motion.
  • the second gate part has slots and lands on both sides of the at least one track, and in the case of a selecting motion in a first direction, the shifting motion occurs only in a first circumferential direction, and in the case of a selecting motion in a second direction, contrary to the first direction it occurs only in a second circumferential direction, the at least one element accordingly having two end faces. One end face interacts with the slots and lands on one side of the track.
  • the (first, second) direction is referred to as a fixed direction in which the selecting motion occurs. Starting from this fixed direction of the selecting motion, rotation is possible only in one circumferential direction (for example: selecting motion upward, shifting motion to the left; selecting motion downward, shifting motion to the right).
  • the second gate part is connected non-rotatingly through first profile toothing on an internal circumferential surface to second profile toothing on an external circumferential surface of the selector shaft, there being a coding tooth present on each of the sets of profile toothing that allows only one installation position of the second gate part and the selector shaft relative to one another.
  • one tooth of the profile toothing (and a corresponding gap between the teeth of the other profile toothing to receive that tooth) is not completely formed, so that the first profile toothing on the internal circumferential surface cannot be slid over the profile toothing on the external circumferential surface if the coding teeth are not opposite one another.
  • the first gate part is ring-shaped and positioned coaxially to the selector shaft, and extends around the selector shaft and around the second gate part.
  • the first gate part has two elements positioned opposite one another and the second gate part has two tracks positioned opposite one another. Positioned opposite means here that the gate part is symmetrical when rotated by 180°. The tracks and elements are thus positioned on opposite sides of the common axis of the selector shaft. Such an arrangement of two elements at a time, which interact simultaneously with slots, lands or tracks, increases the sturdiness and thus the wear-resistance of the gate and therefore of the transmission actuator.
  • the transmission actuator includes a spindle with a spindle nut, where the spindle nut forms a toothed rack and is operatively connected to a shaft gear through one of two gear wheels at a time, the shaft gear being firmly connected to the selector shaft.
  • the spindle nut itself forms the second gate part in this case, with the slots and lands running parallel to a spindle axis.
  • the element of the first gate part is formed by at least one pin, which is able to interact with the slots and lands of the spindle nut.
  • the second gate part is formed by the spindle nut provided there.
  • the pin is fixed with respect to the housing, and represents the first gate part.
  • the pin, together with the second gate part, forms the arresting device on the spindle nut or the latching of the spindle nut in the first axial position zone.
  • the first gate part has two pins in this case, which are positioned parallel to one another and on opposite sides of the spindle axis.
  • the arrangement of two pins or two elements opposite one another serves to achieve a more stable arrangement of the first gate part and the second gate part. Furthermore, the first gate part and the second gate part thus have no preferred direction up/down or 0°/180°, so that the assembly can be carried out more safely.
  • the present invention is also directed at a method for selecting and shifting gears using a transmission actuator, in particular a transmission actuator according to the invention, where a control system is provided and the process comprises the following steps:
  • the function of the gate is to prevent a selecting motion outside of the track or outside of the selection band. Furthermore, a shifting motion in a position between tracks is prevented; that is, the possibility of two gears being engaged at the same time is prevented. Thus, the gate ensures that exactly one target shift track or shift slot is found.
  • the insertion chamfer serves to increase the production tolerances of the elements involved in the shifting motion, for example the selector finger, so that even larger mis-positionings of these elements relative to each other can be compensated for, thus reducing the number of unsuccessful attempts at shifting procedures.
  • the gate serves as torque support when returning from the slot into the selection band (for example, the track). Without the gate, there is no definition on this return path of whether the transmission actuator is to perform a motion in the selecting or shifting direction.
  • the gate ensures that a selecting motion is only possible when the element is situated in the track and is movable along the track. Only then is the gearshift lever in the motor vehicle transmission device movable in such a way that the gearshift rails are not actuated to engage a gear.
  • FIG. 1 a single-motor transmission actuator from the prior art according to DE 10 2013 207 871;
  • FIG. 2 a detail of FIG. 1 in a view rotated by 90°;
  • FIG. 3 an H-shaped shifting diagram as an abstraction of the shifting motion
  • FIG. 4 a selector shaft with gate and gearshift lever/shift rail in sectional view
  • FIG. 5 the depiction from FIG. 4 with the gearshift lever in a different position
  • FIG. 6 a first variant embodiment of a second gate part
  • FIG. 7 the interaction of a first gate part and a second gate part as a gate
  • FIG. 8 tracks and slots of a second gate part with elements of a first gate part positioned therein;
  • FIG. 9 the depiction according to FIG. 8 in a different position
  • FIG. 10 the depiction according to FIG. 8 with the sequence of a selecting motion and a shifting motion
  • FIG. 11 the depiction according to FIG. 8 , with an erroneous shifting motion being stopped here;
  • FIG. 12 a detail of a first gate part according to FIG. 7 ;
  • FIG. 13 a single-motor transmission actuator shown from the side, in a sectional view
  • FIG. 14 a detail of a single-motor transmission actuator in a perspective view with a second variant embodiment of a gate
  • FIG. 15 a detail of the single-motor transmission actuator according to FIG. 14 .
  • FIG. 1 shows a single-motor transmission actuator from the prior art according to DE 10 2013 207 871.
  • a spur gear 42 is driven by means of an appropriate motor spindle 43 ; both directions of rotation 44 , 45 are possible.
  • the spur gear 42 meshes with the inside teeth of a ring gear 46 , which in this case drives a spindle 30 (a threaded spindle) directly.
  • the spindle 30 also performs a rotary motion in a first direction of rotation 44 or an opposite second direction of rotation 45 .
  • a spindle nut 31 is situated on the (threaded) spindle 30 .
  • the spindle nut 31 meshes by means of toothing 56 (see FIG. 2 ) with one of two gear wheels 33 , 34 at a time, which themselves are connected by means of a shaft gear 35 to a selector shaft 3 .
  • An axial displacement of the spindle nut 31 brings about a rotation of one of the two gear wheels 33 , 34 .
  • This rotation causes a rotation of the shaft gear 35 and correspondingly a swiveling of a gearshift lever 47 , which is located on the selector shaft 3 .
  • the gearshift lever 47 interacts with a motor vehicle transmission device, which has a plurality of gear steps for forming gears.
  • the gearshift lever 47 performs a shifting motion 12 with the swiveling motion.
  • the spindle nut 31 If the spindle nut 31 is moved along the spindle 30 , the engagement with a third gear wheel 49 is enlarged; that is, areas of overlap are gained. It would also be possible for a meshing to come about only with this motion. As long as the spindle nut 31 is in a first axial position range 50 of the threaded spindle 30 and is meshed with a detent mechanism 48 , the spindle nut 31 cannot move axially against the holding force of the detent mechanism 48 .
  • a rotation of the selector shaft 3 that is, a shifting procedure, does not become possible until the spindle nut 31 has been moved far enough out of this first axial position range 50 and along the spindle 30 into a different axial range, until the holding force between the spindle nut 31 and the detent mechanism 48 has been overcome.
  • the spindle nut 31 is now connected to the free-wheel mechanism 51 through the third gear wheel 49 .
  • the free-wheel mechanism 51 allows a rotary motion only in a second direction of rotation 45 , so that the spindle nut 31 is able to perform a rotary motion exclusively in a first direction of rotation 44 .
  • a selector wheel 52 is Also positioned on the axis of rotation of the free-wheel mechanism 51 , a selector wheel 52 , by means of which the rotation of the spindle nut 31 and of the motor spindle 43 is transmitted to a selector pot 53 .
  • the selector pot 53 may also be driven accordingly exclusively in one direction of rotation, and with the help of a trajectory 54 on its circumference transforms the rotary motion into an up-and-down motion of guide pins 55 , which engage with the trajectory 54 and are connected to the selector shaft 3 .
  • the up-and-down motion of the guide pins 55 thereby corresponds to a selecting motion 11 of the selector shaft 3 .
  • This selecting motion 11 is carried out as long as the motor 41 is moving in the first direction of rotation 44 .
  • the gear wheel pairings which transmit the motion of the motor 41 to the spindle 30 , to the free-wheel mechanism 51 , to the selector pot 53 and to the shaft gear 35 and thereby bring about the selecting motion 11 and the shifting motion 12 of the selector shaft 3 , are referred to as the connecting device 18 .
  • FIG. 2 shows a detail of FIG. 1 in a view rotated by 90°; here the spindle nut 31 is meshed with the second gear wheel 34 through the toothing 56 , so that an axial movement 60 (see FIG. 1 ) causes a rotation of the second gear wheel 34 and with it a rotation of the shaft gear 35 , and thus a shifting motion 12 of the selector shaft 3 .
  • the gearshift lever 47 positioned on the selector shaft 3 performs a shifting motion 12 , whereby a motor vehicle transmission device 2 is operated and a gear is shifted accordingly.
  • FIG. 3 shows an H-shaped shifting diagram as an abstraction of the selecting motion 11 and the shifting motion 12 .
  • the gearshift lever 47 is positioned before the reverse gear or the fourth gear, and can perform a shifting motion 12 when a corresponding selecting motion 11 is made.
  • FIG. 4 shows a selector shaft 3 with a gate 4 positioned on it, a gearshift lever 47 and gearshift rails 57 of a motor vehicle transmission device 2 .
  • the gearshift lever 47 has a selector finger 62 and a plurality of throw-out cams 61 .
  • the throw-out cams 61 of the gearshift lever 47 are designed so that they can interact in the nature of an “active interlock” with the gearshift rails 57 of the motor vehicle transmission device 2 shown here.
  • an “active interlock” you are referred to the unpublished DE 10 2013 203 284 of the applicant, which is hereby likewise referenced in its entirety.
  • the selector finger 62 is positioned directly before a gearshift rail 57 , so that when the selector shaft 3 makes a shifting motion 12 a gear may be engaged.
  • This position of the selector finger 62 before the gearshift rail 57 is set by the gate 4 .
  • the gate 4 has a second gate part 6 with lands 9 and slots 8 , the second gate part 6 being positioned around the selector shaft 3 and coaxial to the selector shaft 3 .
  • a first gate part 5 with an element 10 extends around the second gate part 6 in such a way that the element 10 can reach in from outside into the slot 8 between lands 9 .
  • FIG. 5 shows the arrangement according to FIG. 4 , while here the selector finger 62 is positioned before two adjacent gearshift rails 57 in such a way that in the event of a shifting motion 12 two gears would be engaged simultaneously.
  • This shifting motion 12 is prevented by the gate 4 however, since the element 10 bumps against the land 9 when there is a shifting motion 12 .
  • FIG. 6 shows a second gate part 6 according to a first variant embodiment.
  • the second gate part 6 has slots 8 and lands 9 alternating in a direction 7 , 22 .
  • the second gate part 6 On an internal circumferential surface 24 , the second gate part 6 has a first profile toothing 23 .
  • a coding tooth 27 is provided, which allows only one installation position of the second gate part 6 and the selector shaft 3 (not shown here) relative to one another.
  • a marking 29 is positioned on the second gate part 6 in such a way that the installation position 28 of the second gate part 6 relative to the selector shaft 3 is recognizable. This simplifies assembly of the second gate part 6 and prevents incorrect positioning on the selector shaft 3 .
  • the second gate part 6 has two tracks 21 located opposite each other, and slots 9 and lands 8 on both sides 26 of each track 21 . This makes a shifting motion 12 possible in a first circumferential direction 19 and in a second circumferential direction 20 .
  • FIG. 7 shows the interaction of the second gate part 6 according to FIG. 6 and a first gate part 5 .
  • the first gate part 5 is fixed with respect to the housing relative to the movable selector shaft 3 .
  • the second gate part 6 is positioned on the selector shaft 3 and is axially movable together with the selector shaft 3 for selecting gears, and rotationally movable for shifting gears.
  • the first gate part 5 has elements 10 , one of which at a time can interact with one of the lands 9 and is movable into one of the slots 8 .
  • the elements 10 are positioned in the track 21 and can be guided past the lands 8 and slots 9 .
  • a shifting motion 12 the elements 10 can be moved into one of the slots 9 .
  • the slots 8 prevent a shifting motion 12 from being carried out if the selector finger 62 is not correctly positioned in the motor vehicle transmission device 2 .
  • the position of the motor vehicle transmission device 2 relative to the first gate part 5 and relative to the second gate part 6 and the selector shaft 3 must be set exactly.
  • the gate 4 now has the following functions, which are depicted schematically in FIGS. 8-11 .
  • the gate 4 prevents a selecting motion 11 while a gear is engaged (see e.g. FIG. 9 ).
  • the gate 4 prevents two gears from being able to be engaged at the same time (see e.g. FIG. 11 ).
  • the gate 4 also serves as a torque support, for example when returning from a slot 8 into the track 21 . Without gate 4 there would be no definition on the return path of whether the selector finger 62 is to perform a selecting motion 11 or a shifting motion 12 .
  • Blockages when elements 10 strike lands 9 ) can be detected by a control system 38 by means of sensors, so that a present actual position 39 of the selector shaft 3 and thus of the second gate part 6 is determinable. Starting from the ascertained present actual position 39 , target positions 40 (selecting motion 11 , shifting motion 12 ) can be moved to precisely.
  • the gate 4 makes it possible for greater production tolerances of the elements involved in the shifting motion, such as the selector finger, to be permissible; even larger mis-positionings of these elements relative to each other can be compensated for, thus reducing the number of unsuccessful attempts at shifting procedures, while at the same time a tightening of the connecting device 18 is avoided. That is, particularly with the single-motor transmission actuator 1 , it is important to avoid a movement of the selector shaft 3 being provoked or forced which acts in the blocked direction of rotation of the free-wheel mechanism 51 .
  • FIG. 8 shows the track 21 and slots 8 and lands 9 of a second curtain part 6 , as well as an element 10 of a first curtain part 5 .
  • This interaction of element 10 and slots 8 corresponds to the abstract shifting diagram according to FIG. 3 .
  • the element 10 of the first gate part 5 is located in the slot 8 of the second gate part 6 .
  • This means that a gear is engaged by a shifting motion 12 of the selector finger 62 in the motor vehicle transmission device 2 .
  • the element 10 has an end wall 16 and an insertion chamfer 13 between the end wall 16 and the first wall 15 .
  • the first wall 15 points in the prescribed direction 58 of a selecting motion 11 .
  • FIG. 9 shows the gate 4 in a different arrangement of the first gate part 5 and second gate part 6 relative to one another.
  • the element 10 contacts the land 8 in the slot 9 .
  • an actual present position 39 of the land 8 and/or of the element 10 in direction 7 , 22 along the selection motion 11 can be determined.
  • This actual present position 39 may be matched with a target position 40 in the control system 38 , so that wear of the transmission actuator 1 can also be determined.
  • the second gate part 6 is moved in the prescribed direction 58 relative to the fixed first gate part 5 .
  • FIG. 10 shows the complete selecting motion 11 and shifting motion 12 of the gate 4 with movable second gate part 6 and fixed first gate part 5 .
  • the second gate part 6 can be positioned so that it is axially and rotationally movable relative to the gate part 5 , the second gate part 6 here having slots 8 and lands 9 alternating in a direction 7 , 22 .
  • the second gate part has slots 9 and lands 8 on both sides 26 of the track 21 , so that starting from a selecting motion 11 in the slot 21 in a prescribed direction 58 a shifting motion 12 can only be carried out in one circumferential direction 19 , 20 at a time.
  • the slots 9 and lands 8 are now moved in the prescribed direction 58 past the element 10 under the selecting motion 11 , while under a shifting motion 12 the second gate part 6 is swiveled in a circumferential direction 19 , 20 relative to the element 10 in such a way that the element 10 can be moved into one of the slots 9 . If a shifting motion 12 occurs in the depicted position of the element 10 , then by means of the insertion chamfer 13 the right element 10 can push the second gate part 6 further in the prescribed direction 58 of the selecting motion 11 , so that the slot 8 is reached and the element 10 can be pushed into the slot 8 .
  • the selector finger 62 is also positioned correctly, so that mis-positionings of the selector finger 62 and/or of the slot 8 are also compensated for and thus the available window for shifting the gear has been enlarged. But if a shifting motion 12 is carried out in circumferential direction 20 , the left element 10 interacts with the slots 9 and lands 8 of the other side 26 of the track 21 .
  • FIG. 11 shows the depiction according to FIG. 8 , with an erroneous shifting motion 12 being stopped here.
  • a shifting motion 12 is not possible, since the end face 16 of the element 10 collides with the land 8 . Since there is no insertion chamfer 13 present here, the second gate part 6 cannot be moved contrary to the prescribed direction 58 , so that a shifting motion 12 and at the same time a tightening of the connecting device 18 is prevented here.
  • FIG. 12 shows a first gate part 5 with two elements 10 that can be arranged jointly in a track 21 of a second gate part 6 (for example in accordance with FIGS. 4-11 ).
  • the elements 10 each have first walls 16 in the prescribed direction 58 of the selecting motion 11 and second walls 17 pointing in the direction contrary to the prescribed direction 58 .
  • the second gate part 6 can be pushed further in the prescribed direction 58 of the selecting motion 11 , from which a selecting motion 12 can be carried out in only one circumferential direction 19 , 20 at a time.
  • the insertion chamfer 13 is thus at an angle 63 of less than 90 degrees relative to the prescribed direction 58 , in particular between 50 and 70 degrees.
  • the insertion chamfer 13 has a length 65 in the direction of the shifting motion 12 (here circumferential direction 20 ) such that the second gate part 6 is movable further in the prescribed direction 58 by a distance 64 beyond the length 65 of the insertion chamfer 13 .
  • FIG. 13 shows a single-motor transmission actuator from the side in a sectional view.
  • a spindle 30 is driven by means of a motor 41 not shown here, and by means of the spindle nut 31 and a third gear wheel 49 a selector wheel 52 positioned on the free-wheel mechanism 51 .
  • the selector wheel 52 is provided to turn the selector pot 53 .
  • Trajectories 54 run in the selector pot 53 which interact with guide pins 55 so that when the selector pot 53 is turned the selector shaft 3 , which is operationally connected to it by means of the guide pins 55 , performs a selecting motion 11 .
  • a gearshift lever 47 with selector finger 62 and throw-out cams 61 Positioned on the selector shaft 3 is a gearshift lever 47 with selector finger 62 and throw-out cams 61 .
  • the threaded spindle 31 is able to perform an axial motion 60 , so that the gear wheels 33 , 34 can be turned by means of the spindle nut 31 designed as toothed rack 32 .
  • the gear wheels 33 , 34 are operationally connected to the shaft gear 35 , which is connected non-rotatingly to the selector shaft 3 .
  • the shifting motion 12 is thus performed by means of the axial movement 60 of the spindle nut 31 .
  • the first gate part 5 is provided, in this case, by means of a pot which is positioned radially outside in reference to the selector shaft 3 , while the second gate part 6 is an element of the selector shaft 3 .
  • the second gate part 6 may also be produced from the selector shaft 3 itself by a reshaping procedure or milling of the selector shaft 3 .
  • FIG. 14 shows a detail of a single-motor transmission actuator 1 in a perspective view with a second variant embodiment of a gate 4 .
  • the transmission actuator 1 includes a spindle 30 with a spindle nut 31 , where the spindle nut 31 forms a toothed rack 32 and is operatively connected to a shaft gear 35 through one of two gear wheels 33 , 34 at a time, the shaft gear 35 being firmly connected to the selector shaft 3 .
  • the spindle nut 31 forms the second gate part 6 .
  • Slots 9 and webs 8 run parallel to a spindle axis 36
  • the element 10 of the first gate part 5 is formed by at least one pin 37 (here by two pins which are positioned parallel to one another and on opposite sides of the spindle axis 36 ).
  • FIG. 15 shows a detail of the single-motor transmission actuator according to FIG. 14 in a view along the spindle axis 36 .
  • the second gate part 6 is rotated in the prescribed direction 58 relative to the fixed pins 37 of the first gate part 5 .
  • the spindle nut performs an axial movement 60 along the spindle axis 36 .
  • the pins 37 reach into the slots 9 of the second gate part 6 and thus enable the shifting motion 12 .
  • an insertion chamfer 13 in the transition 14 from the end face 16 to the first wall 15 enables the second gate part 6 to be shifted in the prescribed direction 58 when pin 37 and land 8 collide.
  • a shift in the opposite direction is prevented by the right-angled transition 14 between end face 16 and second wall 15 .
  • a gate rail in a fixed location which corresponds to the gate 4 described above, but is constructed essentially complementarily to that gate 4 , i.e., among other things hollow inside.
  • This gate rail would then be fixed with respect to a housing and would provide slots 8 for elements 10 positioned non-rotatingly on the selector shaft 3 .
  • the first gate part would then be constructed correspondingly complementarily to the first gate part 6 and would be connected to the selector shaft 3 .

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Gear-Shifting Mechanisms (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
  • Transmission Devices (AREA)
  • Gasket Seals (AREA)
US15/127,729 2014-03-26 2015-02-24 Single-motor transmission actuator with gate for selecting and shifting gears of a motor vehicle transmission device Abandoned US20170152941A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102014205659.4 2014-03-26
DE102014205659 2014-03-26
PCT/DE2015/200100 WO2015144153A1 (de) 2014-03-26 2015-02-24 1-motor-getriebeaktor mit kulisse zum wählen und schalten von gängen einer kraftfahrzeuggetriebeeinrichtung

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US20170152941A1 true US20170152941A1 (en) 2017-06-01

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US15/127,110 Expired - Fee Related US10260626B2 (en) 2014-03-26 2015-02-24 Cam mechanism for actuating a selector shaft
US15/127,729 Abandoned US20170152941A1 (en) 2014-03-26 2015-02-24 Single-motor transmission actuator with gate for selecting and shifting gears of a motor vehicle transmission device

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US (2) US10260626B2 (ko)
EP (3) EP3123061A1 (ko)
JP (4) JP6509251B2 (ko)
KR (4) KR102249031B1 (ko)
CN (5) CN106133403B (ko)
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CN106133408A (zh) 2016-11-16
CN106133408B (zh) 2018-01-26
DE112015001417A5 (de) 2016-12-08
WO2015144147A1 (de) 2015-10-01
KR20160137548A (ko) 2016-11-30
DE112015001436A5 (de) 2016-12-08
EP3123062A1 (de) 2017-02-01
CN106133407B (zh) 2018-10-02
JP2017512951A (ja) 2017-05-25
WO2015144153A1 (de) 2015-10-01
CN106104100A (zh) 2016-11-09
CN106104100B (zh) 2018-02-06
EP3123060A1 (de) 2017-02-01
KR102249031B1 (ko) 2021-05-07
KR20160137549A (ko) 2016-11-30
DE112015001393A5 (de) 2016-12-08
CN106133402A (zh) 2016-11-16
DE112015001447A5 (de) 2016-12-22
JP2017508936A (ja) 2017-03-30
JP6509251B2 (ja) 2019-05-08
JP6559155B2 (ja) 2019-08-14
JP2017508935A (ja) 2017-03-30
KR20160137538A (ko) 2016-11-30
WO2015144149A1 (de) 2015-10-01
CN106133407A (zh) 2016-11-16
DE112015001414A5 (de) 2016-12-08
JP6509250B2 (ja) 2019-05-08
US10260626B2 (en) 2019-04-16
JP2017512950A (ja) 2017-05-25
WO2015144152A1 (de) 2015-10-01
EP3123061A1 (de) 2017-02-01
KR102247256B1 (ko) 2021-05-03
CN106133402B (zh) 2018-02-23
JP6559156B2 (ja) 2019-08-14
CN106133403A (zh) 2016-11-16
CN106133403B (zh) 2018-07-06
KR20160140630A (ko) 2016-12-07
US20170122432A1 (en) 2017-05-04
WO2015144148A1 (de) 2015-10-01
EP3123062B1 (de) 2020-06-03

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