WO2009021795A1 - Dispositif de détermination de la position de commutation d'un système mécanique - Google Patents

Dispositif de détermination de la position de commutation d'un système mécanique Download PDF

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Publication number
WO2009021795A1
WO2009021795A1 PCT/EP2008/059159 EP2008059159W WO2009021795A1 WO 2009021795 A1 WO2009021795 A1 WO 2009021795A1 EP 2008059159 W EP2008059159 W EP 2008059159W WO 2009021795 A1 WO2009021795 A1 WO 2009021795A1
Authority
WO
WIPO (PCT)
Prior art keywords
housing
sensor element
locking
locking element
sensor
Prior art date
Application number
PCT/EP2008/059159
Other languages
German (de)
English (en)
Inventor
Stanislav Massini
Gerhard Oberpertinger
Arnold Trissler
Original Assignee
Schaeffler Kg
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 Schaeffler Kg filed Critical Schaeffler Kg
Publication of WO2009021795A1 publication Critical patent/WO2009021795A1/fr

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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D11/00—Component parts of measuring arrangements not specially adapted for a specific variable
    • G01D11/24—Housings ; Casings for instruments
    • G01D11/245—Housings for sensors
    • 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
    • F16H59/68—Inputs being a function of gearing status
    • F16H59/70—Inputs being a function of gearing status dependent on the ratio established
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/32—Driving mechanisms, i.e. for transmitting driving force to the contacts
    • H01H3/50—Driving mechanisms, i.e. for transmitting driving force to the contacts with indexing or locating means, e.g. indexing by ball and spring
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/02—Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch
    • H01H3/16—Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch adapted for actuation at a limit or other predetermined position in the path of a body, the relative movement of switch and body being primarily for a purpose other than the actuation of the switch, e.g. for a door switch, a limit switch, a floor-levelling switch of a lift
    • H01H3/168—Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch adapted for actuation at a limit or other predetermined position in the path of a body, the relative movement of switch and body being primarily for a purpose other than the actuation of the switch, e.g. for a door switch, a limit switch, a floor-levelling switch of a lift operated by movement in any direction

Definitions

  • the present invention relates to a device for determining a shift position of a mechanical system.
  • the device has a locking element that defines a locking axis.
  • the locking element has a housing.
  • a sensor element which likewise has a housing is connected to the locking element. With the sensor element electrical signals regarding the switching position are supplied.
  • European Patent EP 1 350 991 B1 discloses a sensor arrangement for determining a shift drum position.
  • a locking element is disclosed with a spring-loaded ball, wherein the spring-loaded ball runs in a sensor disk, which has formed corresponding recesses.
  • a magnet is arranged on the scanning device, which is part of a Hall element. With this sensor, it is possible to detect the position data of the scanning device and to convert these into electronic signals.
  • the structure of the scanning device has the disadvantage that the scanning device and the sensor unit provided for this purpose have a rigid connection, so that for this purpose the observance of predetermined manufacturing tolerances or component tolerances is absolutely necessary.
  • European Patent Application EP 1 152 174 discloses a sensor with which the shift position of a transmission (automatic transmission) can be determined.
  • a selector shaft has several different circumferential grooves formed, in which a scanning element engages in dependence on the switching position, which is connected to a sensor which supplies a corresponding electrical signal in dependence on the position of the switching shaft. The signal is thus an indication of the currently prevailing shift position.
  • U.S. Patent 4,471,304 discloses a magnetic sensor device capable of determining the position of a piston in contact with a component whose position or position it is to determine.
  • European Patent Application 0 325 717 discloses a switch with metal housing, which is particularly suitable for motor vehicles.
  • the switch finds z. B. as a reverse switch, gear switch, temperature switch or the like use.
  • zinc die casting which typically makes up the switch housing, yields at higher temperatures.
  • a plurality of indentations are provided for this purpose on the base, with which a corresponding secure mounting is ensured.
  • U.S. Patent 4,853,629 also discloses a Hall-effect sensor system which is preferably used in the automotive field. With the sensor system, the position of a shift rod of a transmission can be determined. On the shift rod slides a spring-loaded ball, which is moved in response to the contour of the shift rod and thus provides a corresponding signal in conjunction with the Hall sensor.
  • the structure between the locking element and the sensor element is also rigid, so that here too considerable demands on the mounting tolerance, or manufacturing tolerance is provided.
  • US Pat. No. 5,031,472 also discloses a sensor device with which the neutral position of a transmission can be determined. About a sliding on the shift rod ball the contour of the shift rod is scanned. The ball is spring-loaded and thus, depending on the position on the sensor element, which is firmly fixed to the locking element. device is connected, a corresponding signal from which is converted into an electrical signal. Based on the obtained electrical signal thus the switching position of the transmission can be determined.
  • the object of the present invention is to provide an apparatus for determining a shift position of a mechanical system that is substantially independent of component tolerances and assembly tolerances. Likewise, it should be ensured that the item tolerances do not negatively affect the assembly of the device in the mechanical system and complicate the assembly steps.
  • the sensor element is arranged rotatable about the locking axis with respect to the locking element.
  • the connections for the sensor element are arranged accordingly, so as possible space-saving and secure connection of the sensor element to the mechanical system and the surrounding electronics, is possible.
  • the mechanical system is a transmission or at least the part of a transmission of a motor vehicle.
  • the sensor element may be formed in a preferred embodiment as a micro-switch. Due to the position of the sensor element or the microswitch, so that the current load for a reversing light can be switched. The position of the microswitch thus provides the electrical signal with which another component of a motor vehicle is controlled.
  • the housing of the locking element and the housing of the sensor element can be positively or non-positively connected to each other.
  • To seal against the possible ingress of oil may be provided between the housing of the sensor element and the housing of the locking element at least one seal.
  • the seal may be formed as an O-ring.
  • a positive connection between the locking element and the sensor element there are several ways of realizing this positive connection. So z. B. the housing of the locking element formed a groove in which engages a clamp and the sensor element supports on the locking element. Another possibility is to hold the housing of the sensor element on the housing of the locking element by means of a snap connection.
  • the housing of the sensor element is supported on the housing of the locking element by extrusion, wherein the housing of the sensor element or the housing of the locking element have formed an undercut, thus the connection between the housing of the sensor element and the housing of the locking element to ensure.
  • the encapsulation can z. B. happen with a thermoplastic, a thermoset and / or an alloy.
  • a separating means is provided between the housing of the locking element and the housing of the sensor element.
  • the mechanical system is also surrounded by a housing in which the locking element is attached.
  • the sensor element is also inserted in the housing of the system.
  • the sensor element is rotatably supported in the housing of the system by means of a securing ring about the locking axis.
  • the housing of the system may have formed a blind hole into which the housing of the locking element is glued, screwed and / or pressed.
  • the housing of the sensor element is likewise inserted into the housing of the system such that there is an operative connection with the locking element.
  • a further advantageous embodiment of the method of installation of the locking element and the sensor element is that the locking element and the sensor element are arranged in a Behelfsgephaseuse such that an operative connection between the sensor element and the locking element is present.
  • the auxiliary housing is designed as a sleeve into which the locking element is glued, screwed in and / or pressed.
  • the sensor element is rotatably supported by means of a locking ring about the locking axis in Behelfsgephaseuse and thereby also occurs with the locking element in operative connection.
  • the trouble animal element and the sensor element in Behelfsgephaseuse represent an assembly that is used in the housing of the mechanical system as a unit so.
  • the makeshift housing may also be formed as a suitably stepped bore in the gear housing or other receiving housing. In this hole, the locking element and the sensor element are mounted and supported in a suitable manner, so that the operative connection is formed in the bore and can be dispensed with the sleeve as makeshift housing.
  • the housing of the sensor element can be provided with a cable.
  • the cable is cast in the housing of the sensor element.
  • the sensor element is connected to a plug, via which the signals recorded by the sensor can be derived.
  • the plug can be aligned in one embodiment in the direction of the locking axis. It is also conceivable that the plug is aligned perpendicular to the locking axis. Also, the plug may be designed to be movable to allow for equipment of the plug to a terminal. A wireless transmission of the signals from the sensor element to a receiver is also conceivable.
  • Figure 1 is a schematic view of the connection of a locking element with a component whose switching position to be determined via the locking element;
  • Figure 2 is a perspective view of a locking element with housing, which is also connected to a sensor element with housing;
  • FIG. 3 shows the housing of the locking element, which is connected to the housing of the sensor element.
  • FIG. 4 shows a perspective detailed view of the region in which the housing of the locking element and the housing of the sensor element interact;
  • Figure 5 is a side view of the housing of the locking element, in which structures are formed, which allow the interaction and secure retention of the housing of the locking element and the housing of the sensor element;
  • FIG. 6 is a perspective view in a sectional view of the interaction of the housing of the locking element and the housing of the sensor element;
  • Figure 7 is an external perspective view of the housing of the locking element and the housing of the sensor element, which are secured against each other with a clamp.
  • FIG. 8 is a sectional view of a further embodiment of the cooperation of the locking element and the sensor element
  • Figure 9 also another embodiment of the interaction of the locking element and the sensor element
  • FIG. 10 is a perspective view of the assembly of locking element and sensor element, which is provided with a plug in the region of the sensor element;
  • Figure 11 shows another embodiment of the component, which consists of locking element and sensor element, wherein the sensor element is also provided with a plug;
  • Figure 12 shows an embodiment of the component in which the sensor element is provided with a cable
  • Figure 13 shows an embodiment in which the cable is arranged differently than in the embodiment shown in Figure 12; and Figure 14 shows an embodiment of the component, consisting of Arretierele- element and sensor element, wherein the sensor element is provided with a pivotable, or movable plug element.
  • FIG. 1 shows a locking element 10 in conjunction with a mechanical system 2 whose switching position is to be determined by means of the locking element 10 and with a sensor element 20 (not shown here) connected to the locking element.
  • the locking element 10 is firmly connected to a housing 2 a of the mechanical system 2.
  • the locking element 10 has a ball 4, which is in operative connection with a control contour 8 in the interior of the housing 2 a of the mechanical system 2.
  • About the control contour 8 of the bolt 6 of the locking member 10 is actuated, the adjustment of which is to be determined with the sensor element 20. From the adjustment of the bolt 6 electrical signals are generated by means of the sensor element 20, which provide data for an information representation or for a further control. It is also possible that a current load is switched directly via a microswitch.
  • FIG. 2 shows a perspective view of the locking element 10, which is connected to the sensor element 20.
  • the locking element 10 has a housing 11 which encloses the mechanical elements (not shown here) of the locking element 10.
  • the sensor element 20 has a housing 21 which encloses the electronic components (also not shown) of the sensor element 20.
  • the housing 11 of the locking element 10 and the housing 21 of the sensor element 20 are designed such that no contamination, or no oil or other fluid in the interior of the sensor element 20 or the locking element 10 arrive.
  • FIG. 3 shows a sectional view of the housing 11 of the locking element 10, which is connected to the housing 21 of the sensor element 20.
  • the housing 11 of the locking element 10 has formed a circumferential groove 12, in which a likewise cylindrical snap device 22 of the housing 21 of the sensor element 20 engages.
  • a circumferential groove 13 milled into which an O-ring 14 is inserted.
  • the housing 21 of the sensor element 20 is positively connected to the housing 11 of the locking element 10, thus it is possible that the housing 21 of the sensor element 20 is rotatable about a locking axis 15.
  • the locking axis 15 corresponds to the longitudinal axis of the locking element 10.
  • an O-ring 14 is located, it is understood for any expert that between the housing 21 of the sensor element 20 and the housing 11 of the locking member 10 more can be provided as an O-ring.
  • the at least one O-ring 14 serves to seal off the interspace between the housing 21 of the sensor element 20 and the housing 11 of the locking element 10, so that no oil or other dirt can penetrate into the housing 21 for the sensor element 20.
  • FIG. 4 shows an embodiment in which the housing 21 of the sensor element 20 is connected to the housing 11 of the locking element 10 by encapsulation and supported.
  • the housing 11 of the locking element 10 or the housing 21 of the sensor element 20 has an undercut 30 in order to obtain a secure connection between the sensor element 20 and the locking element 10.
  • a release agent 25 is inserted between the housing 21 of the sensor element 20 and the housing 11 of the locking member 10 to ensure the mobility of the housing 21 of the sensor element and the housing 11 of the locking member 10 about the locking axis 15. Alone the release agent 25 would already prevent penetration of the oil into the interior of the system.
  • an O-ring 14 may be provided to ensure a further seal.
  • FIG. 5 shows a schematic external view of the housing 11 of the locking member 10.
  • the housing 11 of the locking member 10 is formed substantially cylindrical.
  • the housing 11 has a groove 50 formed in which, as shown in Figure 6, a clip 51 engages.
  • an O-ring 14 is provided which, as already described several times, to the seal between the Ge housing 11 of the locking member 10 and the housing 21 of the sensor element 20 contributes.
  • Figure 6 shows a perspective sectional view of the connection of the housing 11 of the locking member 10 and the housing 21 of the sensor element 20.
  • the housing 21 of the sensor element 20 is secured relative to the housing 11 of the locking member 10 with a bracket 51.
  • a positive connection between the housing 21 of the sensor element 20 and the housing 11 of the locking member 10 is given, so that in turn the housing 21 of the sensor element 20 is rotatable about the locking axis 15 of the locking member 10.
  • FIG. 7 shows a perspective partial view of the housing 21 of the sensor element 20 in conjunction with the housing 11 of the locking element 10.
  • the housing 21 of the sensor element 20 has two bores 52 in the region of the groove 50 (only one borehole being shown in FIG. which is shown).
  • the bracket 51 can be inserted into the bore so that the housing 21 of the sensor element 20 is secured relative to the housing 11 of the locking element 10.
  • the bracket 51 is U-shaped.
  • FIG. 8 shows an embodiment in which the housing 2 a of the system 2 has formed at least one blind hole 2 b, 2 c.
  • the locking element 10 is inserted.
  • the locking element 10 can be glued, screwed and / or pressed in the blind hole 2b.
  • the sensor element 20 is inserted into the blind hole 2 c of the housing 2 a of the system 2.
  • the sensor element 20 is in operative connection with the locking element 10.
  • the housing 21 of the sensor element 20, or the sensor element 20 itself is rotatably supported in the blind hole 2c by means of a securing ring 60.
  • an O-ring 14 is again provided for further sealing of the housing 21 of the sensor element 20 and the housing 2a of the system 2.
  • the sensor element 20 is provided with a plurality of terminals 27, via which the electrical signals (and / or a current load) can be sent to further elements for further processing.
  • the Housing 2a of the system 2 the transmission housing or the housing of a gear shift unit on the transmission housing.
  • FIG. 9 shows a further embodiment of the arrangement of the sensor element 20 and of the locking element 10 in the housing 2 a of the system 2.
  • the locking element 10 and the sensor element 20 are arranged in a temporary housing 70.
  • the Behelfsgephaseuse 70 is formed as a sleeve.
  • the locking element 10 is glued into the sleeve, screwed and / or pressed.
  • the sensor element 20 is again held by means of a securing ring 60 in the Behelfsgephaseuse 70, so that the sensor element 20 is rotatable about the locking axis 15 and also with the locking member 10 in operative connection.
  • a sealing ring 14 is provided to further seal the gap between Behelfsgepatuse 70 and the sensor element 20, a sealing ring 14 is provided.
  • the locking element 10 and the sensor element 20 can be pre-assembled with the Behelfsgephaseuse 70 to form a unit. This structural unit can then be inserted into the housing 2a of the system 2 at the location
  • the locking element 10 is pressed into the housing 21 of the sensor element 20. It is also conceivable that the sensor element 20 is pressed into the housing 11 of the locking element 10. Between the housing 21 of the sensor element 21 and the housing 11 of the locking element 10 is then also at least one seal provided in order to prevent the ingress of oil or other dirt.
  • FIG. 10 shows a first embodiment in which the housing 21 of the sensor element 20 is connected to a plug 100.
  • the plug 100 is aligned in the direction of the axis 15 of the locking element 10.
  • FIG. 11 shows a further embodiment of the connection of a plug 101 to the housing 21 of the sensor element 20.
  • the plug 101 is arranged perpendicular to the arresting axis 15.
  • FIG. 12 shows a further embodiment for the derivation of the signals recorded by the sensor element 20.
  • a cable 102 is connected to the housing 21 of the sensor element 20.
  • the cable 102 may be cast in the housing 21 of the sensor element 20.
  • the cable 102 is attached to the housing 21 of the sensor element 20 in the direction of the locking axis 15 of the sensor element.
  • FIG. 1 Another embodiment of the attachment of the cable 102 is shown in FIG. In this case, the cable 102 is attached laterally to the housing 21 of the sensor element 20.
  • FIG. 14 shows a further embodiment of the attachment of a plug 105 to the housing 21 of the sensor element 20.
  • the plug 105 is connected to the housing 21 of the sensor element 20 via a hinge 110.
  • the connection can be configured in accordance with the connection of a display to the housing of a laptop.
  • the electrical signals received by the sensor element can be derived.
  • the mobility of the plug 105 has the advantage that thereby the installation and assembly is much easier, since the connector can be assembled independently of building tolerances and / or individual building tolerances. With the movable plug 105 thus adaptation of the cable gangs, or a plug orientation is possible at any time.
  • the mobility of the plug 105 is required to take into account the space-specific requirements with respect to the plug orientation.
  • the transmission can be carried out by radio, infrared or any other possible wireless transmission technology.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)
  • Transmission And Conversion Of Sensor Element Output (AREA)

Abstract

L'invention concerne un dispositif de détermination de la position de commutation d'un système mécanique (2). Le dispositif présente un élément de blocage (10) qui définit un axe de blocage (15) et qui présente un boîtier (11). Un élément de détection (20) qui comprend également un boîtier (21) est relié à l'élément de blocage (10) et l'élément de détection (20) délivre des signaux électriques concernant la position de commutation du système mécanique (2). L'élément de détection (20) est disposé de façon à pouvoir tourner autour de l'axe de blocage (15) par rapport à l'élément de blocage (10).
PCT/EP2008/059159 2007-08-10 2008-07-14 Dispositif de détermination de la position de commutation d'un système mécanique WO2009021795A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200710037759 DE102007037759A1 (de) 2007-08-10 2007-08-10 Vorrichtung zum Bestimmen einer Schaltstellung eines mechanischen Systems
DE102007037759.4 2007-08-10

Publications (1)

Publication Number Publication Date
WO2009021795A1 true WO2009021795A1 (fr) 2009-02-19

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Application Number Title Priority Date Filing Date
PCT/EP2008/059159 WO2009021795A1 (fr) 2007-08-10 2008-07-14 Dispositif de détermination de la position de commutation d'un système mécanique

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DE (1) DE102007037759A1 (fr)
WO (1) WO2009021795A1 (fr)

Families Citing this family (7)

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DE102010011459A1 (de) 2010-03-15 2011-09-15 Schaeffler Technologies Gmbh & Co. Kg Sensorschalteinheit
DE102010011833A1 (de) 2010-03-18 2011-09-22 Schaeffler Technologies Gmbh & Co. Kg Schaltvorrichtung eines Kraftfahrzeugwechselgetriebes
DE102011005113A1 (de) * 2011-03-04 2012-09-06 Zf Friedrichshafen Ag Gehäuse und Abdeckungselement für einen Sensorträger
DE102013223912A1 (de) * 2013-11-22 2015-05-28 Zf Friedrichshafen Ag Sensorvorrichtung und Verfahren zum Herstellen einer Sensorvorrichtung
DE102013113174A1 (de) * 2013-11-28 2015-06-11 Sick Ag Sensor und Verfahren zum wahlweisen Anschließen von zwei unterschiedlichen Seiten
FR3026178B1 (fr) * 2014-09-22 2018-05-18 Safran Landing Systems Capteur de proximite pour aeronef dote d'un assemblage etanche particulier
FR3044369B1 (fr) * 2015-12-01 2018-04-27 Valeo Embrayages Ensemble capteur pour dispositif de commande hydraulique

Citations (4)

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Publication number Priority date Publication date Assignee Title
US4025748A (en) * 1975-07-17 1977-05-24 I.C.S. Ignition Control Systems Ltd. Single push-button switch having visual position indication
DE4208888A1 (de) * 1992-03-19 1993-09-23 Fichtel & Sachs Ag Anordnung zur erfassung der gangstellung eines kraftfahrzeug-schaltgetriebes
EP1152174A2 (fr) * 2000-05-05 2001-11-07 Eaton Corporation Combinaison de mécanisme de détente et capteur pour le point mort d'une transmission
EP1350991A1 (fr) * 2002-03-26 2003-10-08 GETRAG FORD Transmissions GmbH Dispositif capteur pour déterminer la position d'un tambour sélecteur de vitesses

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DE2945895C2 (de) 1979-11-14 1986-06-05 Festo-Maschinenfabrik Gottlieb Stoll, 7300 Esslingen Magnetischer Stellungsgeber für hydrauliche oder pneumatische Arbeitszylinder
DE8800927U1 (de) 1988-01-27 1988-12-22 Merit-Elektrik GmbH, 5270 Gummersbach Schalter mit Metallgehäuse, insbesondere für Kraftfahrzeuge
US4853629A (en) 1988-05-02 1989-08-01 Eaton Corporation Hall-Effect position sensing system and device
DE69001027T2 (de) 1989-02-11 1993-09-30 Eaton Corp Fühleranordnung für die Leerlaufstellung.

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4025748A (en) * 1975-07-17 1977-05-24 I.C.S. Ignition Control Systems Ltd. Single push-button switch having visual position indication
DE4208888A1 (de) * 1992-03-19 1993-09-23 Fichtel & Sachs Ag Anordnung zur erfassung der gangstellung eines kraftfahrzeug-schaltgetriebes
EP1152174A2 (fr) * 2000-05-05 2001-11-07 Eaton Corporation Combinaison de mécanisme de détente et capteur pour le point mort d'une transmission
EP1350991A1 (fr) * 2002-03-26 2003-10-08 GETRAG FORD Transmissions GmbH Dispositif capteur pour déterminer la position d'un tambour sélecteur de vitesses

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