WO2015058760A2 - Ensemble piston-cylindre, notamment pour un dispositif de commande d'embrayage d'un véhicule à moteur - Google Patents

Ensemble piston-cylindre, notamment pour un dispositif de commande d'embrayage d'un véhicule à moteur Download PDF

Info

Publication number
WO2015058760A2
WO2015058760A2 PCT/DE2014/200532 DE2014200532W WO2015058760A2 WO 2015058760 A2 WO2015058760 A2 WO 2015058760A2 DE 2014200532 W DE2014200532 W DE 2014200532W WO 2015058760 A2 WO2015058760 A2 WO 2015058760A2
Authority
WO
WIPO (PCT)
Prior art keywords
sensor
piston
cylinder
housing
release bearing
Prior art date
Application number
PCT/DE2014/200532
Other languages
German (de)
English (en)
Other versions
WO2015058760A3 (fr
Inventor
Bruno Pavane
Original Assignee
Schaeffler Technologies AG & Co. 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 Technologies AG & Co. KG filed Critical Schaeffler Technologies AG & Co. KG
Priority to DE112014004861.5T priority Critical patent/DE112014004861A5/de
Publication of WO2015058760A2 publication Critical patent/WO2015058760A2/fr
Publication of WO2015058760A3 publication Critical patent/WO2015058760A3/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D25/00—Fluid-actuated clutches
    • F16D25/08—Fluid-actuated clutches with fluid-actuated member not rotating with a clutching member
    • F16D25/082—Fluid-actuated clutches with fluid-actuated member not rotating with a clutching member the line of action of the fluid-actuated members co-inciding with the axis of rotation
    • F16D25/083—Actuators 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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2300/00—Special features for couplings or clutches
    • F16D2300/18—Sensors; Details or arrangements thereof

Definitions

  • Piston-cylinder arrangement in particular for a clutch actuator of a motor vehicle
  • the invention relates to a piston-cylinder arrangement, in particular for a Kupplungsbetä- t Trents adopted a motor vehicle, consisting of a housing formed as a concentric cylinder, which spans an annular pressure chamber in which a piston is mounted axially movable, with a release bearing in is an operative connection, wherein one, a position of the release bearing detecting distance measuring unit between a fixedly connected to the release bearing holder and the housing is arranged.
  • slave cylinders In clutch actuation systems, which are used in motor vehicles, slave cylinders are used which have a cylindrically shaped housing, wherein the housing has in its interior an annular pressure chamber in which an axially movable piston is mounted. This piston is filled with a seal in the direction of a hydraulic line, which connects the slave cylinder to a master cylinder actuated by a clutch actuator.
  • the clutch actuator By the operation of the clutch actuator, the hydraulic fluid is pressed from an interior of the master cylinder in a hydraulic line and from this into the slave cylinder, wherein the piston moves through the hydraulic fluid and thus via a release bearing, with which the piston of the slave cylinder is in operative connection, the Clutch is actuated.
  • Such slave cylinders are preferably installed in manually operated transmissions.
  • a linear path measuring unit is arranged on the release bearing, which is designed as a digital switching unit and which consist of an electronic reading unit and fastening devices. Due to the measuring principle used in the digital switching unit, the digital switching unit is oriented approximately perpendicular to the extension direction of the slave cylinder. To determine the position of the release bearing and thus the piston of the slave cylinder, the digital switching unit sends a signal to an external electronics, which converts them into a path information. Although such a digital switching unit can be used as standard, it is very expensive. In addition, this requires a variety of fasteners that require a large amount of space.
  • the invention is therefore an object of the invention to provide a piston-cylinder assembly for a clutch actuator with a displacement measuring device, which requires only a small space and yet outputs an accurate position signal of the release bearing or piston of the slave cylinder.
  • the path measuring unit comprises a sensor which is externally fixedly mounted on the cylinder designed as a housing, wherein on the sensor a linear locking unit is placed, which extends parallel to the direction of the release bearing and on the holder of the release bearing attacks.
  • the senor is a magnetic or inductive position sensor
  • the movably formed, linear locking unit carries a standing with a sensor unit in operative connection sensor element, which changes its position relative to the position of the release bearing linearly to the sensor unit.
  • the linear locking unit engages in an interior space of the sensor housing, on which the sensor circuit is stationarily positioned.
  • the sensor housing carrying the sensor unit and the locking unit is firmly connected to the cylindrical housing of the slave cylinder and thus requires only one attachment point, which simplifies the manufacturing process.
  • the linear locking unit comprises a locking pin, which is resiliently mounted relative to a projection of the bracket.
  • the linear locking unit is locked with a, the sensor element opposite end to the projection of the holder of the release bearing and is actuated by the latter.
  • the sensor circuit preferably together with a sensor evaluation electronics, is arranged on a carrier element which extends in the sensor housing parallel to the direction of movement of the sensor element.
  • the positioning of the sensor circuit within the sensor housing further reduces installation space, so that the piston-cylinder arrangement can be reduced in its overall extent.
  • the linear locking unit is partially surrounded by a cylinder housing, which engages in the sensor housing.
  • the locking unit can be attached to the sensor housing in only one assembly step.
  • the cylinder housing of the locking unit is formed on the, attacking the projection of the bracket end spherical or cylindrical.
  • the spherical configuration facilitates adaptation of the cylinder housing of the locking unit to the projection of the holder of the release bearing, whereby a secure concern of the cylinder housing is ensured on the projection during the life of the sensor.
  • FIG. 1 schematic illustration of a clutch actuation system
  • FIG. 3 a first detail of the embodiment of the invention
  • FIG. 4 shows a second detailed representation of the exemplary embodiment of the piston / cylinder arrangement according to the invention
  • FIG. 5 an embodiment of the sensor
  • FIG. 6 shows a longitudinal section through the sensor according to FIG. 5,
  • FIG. 7 a first external view of the sensor
  • FIG. 8 a second external view of the sensor.
  • FIG. 1 the structure of a hydraulically actuated Kupplungsbetusch whyssys- system 1 is shown schematically.
  • a clutch pedal 2 acts on the donor side 3 on a master cylinder 4.
  • the piston 5 of the master cylinder 4 is moved along an actuator path to the right, whereby the volume of the hydraulic cylinder 6 contained in the master cylinder 4 changes, creating a pressure p in the master cylinder.
  • 4 is constructed, which is transmitted via the hydraulic fluid 6 via a hydraulic line 7 to the slave side 8 of the clutch actuation system 1.
  • the hydraulic line 7 is adapted with respect to their length and design of the installation space situation of the motor vehicle.
  • the hydraulic line 7 is connected via a connector 9 to a slave cylinder 10.
  • On the slave side 8 causes the pressure p of the hydraulic fluid 6 in the slave cylinder 10, a path change, which is transmitted to a clutch 1 1 to operate them.
  • the piston 12 of the slave cylinder 10 is movably mounted in a cylinder 37 designed as a housing.
  • the pressure p which builds up the hydraulic fluid 6 in the slave cylinder 10, moves the piston 12 and actuates a release bearing 13, which is about disc springs 14 with the clutch 1 1 in operative connection.
  • the slave cylinder 10 is shown in an external view in FIG.
  • a housing cylinder 37 made of steel.
  • On a collar 15 of the cylinder 12 extends radially outwardly a, an opening 17 having sensor receptacle 16.
  • a sensor 18 is inserted.
  • the sensor 18 consists of a sensor unit 19 and a linear locking unit 20.
  • the linear locking unit 20 is located on a jump 21 an annular support 22, which is fixedly connected to the release bearing 13 and projects radially outward.
  • a bellows 23 is arranged, which surrounds the cylinder 37.
  • a preload spring 24 is arranged below the bellows 23, which presses the holder 22 against an inner ring 25 of the release bearing 13.
  • rolling elements 28 are arranged, which allow movement of the release bearing 13 with the clutch 1 1.
  • FIG 4 shows once again a longitudinal section through the slave cylinder 10.
  • the sensor 18 extends parallel to the direction of movement of the piston 12, which only requires a small space.
  • the sensor 18 is connected via a plug connection 31 to an external, not shown control electronics.
  • the sensor 18 is conveniently arranged in the region of the connector 9, which requires a relatively large amount of space due to its radial distance from the axis of the slave cylinder 10. The arrangement of the sensor 18 in this area uses the space created by the connector 9 space without additional space.
  • the sensor 18 consists of the sensor housing 30 and the locking unit 20, wherein a locking pin 32 extends from the locking unit 20 into the interior of the sensor housing 30.
  • a magnet 33 is arranged at the top of the locking pin 32.
  • the locking pin 32 is biased by a spring 34 against the projection 21 of the bracket 22 of the release bearing 13.
  • the movement of the piston 12 and thus of the release bearing 13 is transmitted via the projection 21 to the locking pin 32 with the magnet 33 located at its tip, which moves on a linear path which is parallel to the axis of the housing 12 formed as a cylinder.
  • a carrier element 35 is arranged, which is positioned parallel to the direction of movement of the locking pin 32.
  • This support member 35 carries a not further shown Hall element, which emits a switching signal when the magnet 33 moves past this. From these switching signals from the external control electronics conclusions about the position of the piston 12 of the Nehmerzy- Linders 10 pulled.
  • a sensor evaluation electronics can also be positioned on the carrier element 35. From this representation it can be seen that the sensor 18 has a sensor housing 30, which comprises the sensor unit, not shown, wherein the locking unit 20 protrudes with a cylinder housing 29 in the interior of the sensor housing 30.
  • the sensor housing 30 For mounting the sensor 18 on the slave cylinder 10, the sensor housing 30 is inserted into the opening 17 of the collar 15 of the housing 12 formed as a cylinder, the locking unit 20 presses against the spring force of the spring 35 against the projection 21 of the holder 22 of the release bearing 13.
  • the cylinder housing 19 of the locking unit 20 at the the projection 21 facing the end of a flat surface, as shown in Figure 7. This end may be formed according to Figure 8 but also spherical. In particular, this is advantageous if the projection 21 has a recess, not shown, in which the cylinder housing 29 of the locking unit 20 engages firmly.
  • a position sensor is not limited to a Hall sensor, but allows, for example, the use of an inductive sensor.
  • the magnet is replaced by a metallically conductive target, for example made of aluminum, which moves linearly in an electromagnetic field spanned by an inductive sensor in order to determine the position of the slave cylinder 10.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)

Abstract

L'invention concerne un ensemble piston-cylindre, notamment destiné à un dispositif de commande d'embrayage d'un véhicule à moteur, comprenant un cylindre concentrique qui est conçu comme carter et qui délimite une chambre de compression annulaire dans laquelle un piston est monté axialement mobile et en coopération fonctionnelle avec un palier de débrayage, une unité de mesure de trajet détectant la position du palier de débrayage étant disposée entre un support solidement fixé au palier de débrayage et le carter. Dans le cas d'un système piston-cylindre de faible encombrement, l'unité de mesure de trajet comprend un détecteur qui est placé fixement sur le cylindre conçu comme un carter, une unité de blocage linéaire placée sur le détecteur s'étendant parallèlement à la direction du trajet du palier de débrayage et entrant en prise avec le support de palier de débrayage.
PCT/DE2014/200532 2013-10-25 2014-10-02 Ensemble piston-cylindre, notamment pour un dispositif de commande d'embrayage d'un véhicule à moteur WO2015058760A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE112014004861.5T DE112014004861A5 (de) 2013-10-25 2014-10-02 Kolben-Zylinder-Anordnung, insbesondere für eineKupplungsbetätigungseinrichtung eines Kraftfahrzeuges

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102013221711.0 2013-10-25
DE102013221711 2013-10-25

Publications (2)

Publication Number Publication Date
WO2015058760A2 true WO2015058760A2 (fr) 2015-04-30
WO2015058760A3 WO2015058760A3 (fr) 2016-01-21

Family

ID=51842326

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2014/200532 WO2015058760A2 (fr) 2013-10-25 2014-10-02 Ensemble piston-cylindre, notamment pour un dispositif de commande d'embrayage d'un véhicule à moteur

Country Status (2)

Country Link
DE (1) DE112014004861A5 (fr)
WO (1) WO2015058760A2 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016210273A1 (de) 2016-06-10 2017-12-14 Schaeffler Technologies AG & Co. KG Druckzylinder mit Flansch mit Sensoraufnahme
DE102017124024B3 (de) 2017-10-16 2018-12-27 Schaeffler Technologies AG & Co. KG Nehmerzylinder mit Metallbestandteil am Sensorgehäusebereich, Betätigungseinrichtung sowie Kupplungssystem
DE102018113397B3 (de) 2018-06-06 2019-09-05 Schaeffler Technologies AG & Co. KG Nehmerzylinder für eine hydraulische Kupplungsbetätigung; Betätigungseinrichtung sowie Kupplungssystem

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008057644A1 (de) * 2007-12-03 2009-06-04 Luk Lamellen Und Kupplungsbau Beteiligungs Kg Wegmesssystem für Kupplungsausrücksysteme
DE102008058702B4 (de) * 2007-12-03 2018-08-23 Schaeffler Technologies AG & Co. KG Zentralausrücker
DE102010018773A1 (de) * 2009-05-13 2010-11-18 Luk Lamellen Und Kupplungsbau Beteiligungs Kg Zentralausrücker
EP2739872B1 (fr) * 2011-08-03 2018-12-12 Schaeffler Technologies AG & Co. KG Cylindre hydraulique destiné en particulier à un dispositif d'actionnement de l'embrayage d'un véhicule automobile

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016210273A1 (de) 2016-06-10 2017-12-14 Schaeffler Technologies AG & Co. KG Druckzylinder mit Flansch mit Sensoraufnahme
DE102017124024B3 (de) 2017-10-16 2018-12-27 Schaeffler Technologies AG & Co. KG Nehmerzylinder mit Metallbestandteil am Sensorgehäusebereich, Betätigungseinrichtung sowie Kupplungssystem
DE102018113397B3 (de) 2018-06-06 2019-09-05 Schaeffler Technologies AG & Co. KG Nehmerzylinder für eine hydraulische Kupplungsbetätigung; Betätigungseinrichtung sowie Kupplungssystem

Also Published As

Publication number Publication date
WO2015058760A3 (fr) 2016-01-21
DE112014004861A5 (de) 2016-07-14

Similar Documents

Publication Publication Date Title
EP2739872B1 (fr) Cylindre hydraulique destiné en particulier à un dispositif d'actionnement de l'embrayage d'un véhicule automobile
DE112013004724B4 (de) Ausrücksystem für eine Kupplung eines Kraftfahrzeuges
EP2147224B1 (fr) Ensemble de capteurs pour un dispositif d'embrayage
DE102008057644A1 (de) Wegmesssystem für Kupplungsausrücksysteme
EP2375085A1 (fr) Mécanisme de commande pour le réglage d'un actionneur et procédé d'établissement du réglage de l'actionneur
WO2011160609A1 (fr) Butée centrale de débrayage d'un embrayage
DE102010018773A1 (de) Zentralausrücker
WO2012155884A1 (fr) Dispositif de débrayage à actionnement hydraulique, comportant un carter composé de plusieurs pièces
WO2016041556A1 (fr) Unité de détection servant à déterminer une position de rotor d'un moteur électrique et moteur électrique destiné de préférence à un actionneur d'embrayage d'un système d'actionnement d'embrayage d'un véhicule à moteur
DE112014002362B4 (de) Sensorsystem mit integrierter Führung und Verdrehsicherung in einem Kupplungsausrücker der hydraulischen Art
EP1365167B1 (fr) Dispositif d'actionnement pour embrayage à friction pour véhicule automobile
WO2018104072A1 (fr) Ensemble maître-cylindre de frein pourvu d'un élément indicateur de position et d'un ensemble d'étanchéité
WO2015058760A2 (fr) Ensemble piston-cylindre, notamment pour un dispositif de commande d'embrayage d'un véhicule à moteur
DE102012220322A1 (de) Ausrücksystem für eine Kupplung eines Kraftfahrzeuges
DE102011100903B4 (de) Hydraulisches Kupplungs- oder Bremsbetätigungssystem
WO2015192843A1 (fr) Maître-cylindre destiné à un système de débrayage
DE102012223736A1 (de) Kolben-Zylinder-Anordnung, insbesondere zur Verwendung in einem Kupplungsbetätigungssystem in einem Kraftfahrzeug
DE102009011807A1 (de) Wegmesssystem für einen Geberzylinder
DE102015215963A1 (de) Betätigungszylinder mit Sensoranordnung
WO2018219401A1 (fr) Débrayeur central comportant un capteur insérable dans un boîtier, débrayeur central comportant un piston et un aimant fixé sur celui-ci et procédé d'assemblage
DE102015201643A1 (de) Hydraulikzylinder für ein Kupplungsbetätigungssystem oder Bremsbetätigungssystem mit einem Wegmesssystem
DE102017101639A1 (de) Zentralausrücker
DE102018001752B4 (de) Zentralausrücker für eine pneumatische Kupplungsbetätigung
DE102016216706A1 (de) Zentralausrücker mit Verbindungsblech zur Positionserfassung
EP2835548A1 (fr) Agencement d'embrayage, notamment pour un embrayage à friction dans un système de débrayage d'un véhicule automobile

Legal Events

Date Code Title Description
WWE Wipo information: entry into national phase

Ref document number: 1120140048615

Country of ref document: DE

Ref document number: 112014004861

Country of ref document: DE

REG Reference to national code

Ref country code: DE

Ref legal event code: R225

Ref document number: 112014004861

Country of ref document: DE

122 Ep: pct application non-entry in european phase

Ref document number: 14790503

Country of ref document: EP

Kind code of ref document: A2