DE102006030999A1 - Device for sensing the position, speed and / or the angle of rotation of a piston - Google Patents

Device for sensing the position, speed and / or the angle of rotation of a piston Download PDF

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Publication number
DE102006030999A1
DE102006030999A1 DE102006030999A DE102006030999A DE102006030999A1 DE 102006030999 A1 DE102006030999 A1 DE 102006030999A1 DE 102006030999 A DE102006030999 A DE 102006030999A DE 102006030999 A DE102006030999 A DE 102006030999A DE 102006030999 A1 DE102006030999 A1 DE 102006030999A1
Authority
DE
Germany
Prior art keywords
piston
permanent magnet
sensing
rotation
angle
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
DE102006030999A
Other languages
German (de)
Inventor
Kai Dipl.-Ing. Heinrich
Markus Dipl.-Ing. Ulbricht
Henrik Dipl.-Ing. Schuh
Manfred Dipl.-Ing. Vetter
Klaus Wöhr
Gerhard Dipl.-Ing. Birkenmaier
Frank Dipl.-Ing. Gessler
Bernhard Walter
Andreas Dipl.-Ing. Graf
Hubert Dipl.-Ing. König
Josef Dipl.-Ing. Bader
Gerhard Dipl.-Ing. Höring
Kim Führer
Karl-Fritz Dipl.-Ing. Heinzelmann
Mario Dipl.-Ing. Steinborn
Ludger Dipl.-Ing. Ronge
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ZF Friedrichshafen AG
Original Assignee
ZF Friedrichshafen AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by ZF Friedrichshafen AG filed Critical ZF Friedrichshafen AG
Priority to DE102006030999A priority Critical patent/DE102006030999A1/en
Priority to PCT/EP2007/056543 priority patent/WO2008003648A2/en
Publication of DE102006030999A1 publication Critical patent/DE102006030999A1/en
Withdrawn legal-status Critical Current

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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
    • G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
    • G01D5/12—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
    • G01D5/14—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage
    • G01D5/142—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage using Hall-effect devices
    • G01D5/145—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage using Hall-effect devices influenced by the relative movement between the Hall device and magnetic fields
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/08—Characterised by the construction of the motor unit
    • F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
    • F15B15/1423—Component parts; Constructional details
    • F15B15/1447—Pistons; Piston to piston rod assemblies
    • F15B15/1452—Piston sealings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/20—Other details, e.g. assembly with regulating devices
    • F15B15/28—Means for indicating the position, e.g. end of stroke
    • F15B15/2807—Position switches, i.e. means for sensing of discrete positions only, e.g. limit switches
    • 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
    • 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
    • F16D25/088—Fluid-actuated clutches with fluid-actuated member not rotating with a clutching member the line of action of the fluid-actuated members being distinctly separate from the axis of rotation
    • 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
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/16—Sealings between relatively-moving surfaces
    • F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
    • F16J15/3296—Arrangements for monitoring the condition or operation of elastic sealings; Arrangements for control of elastic sealings, e.g. of their geometry or stiffness
    • 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
    • F16D2025/081—Hydraulic devices that initiate movement of pistons in slave cylinders for actuating clutches, i.e. master cylinders
    • 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

Abstract

Es wird eine Einrichtung zur Sensierung der Position, Drehzahl und/oder des Drehwinkels eines in einem Zylinder angeordneten Kolbens vorgeschlagen, umfassend einen Dauermagneten und einen Sensor zur Erfassung der Lage des Dauermagneten, bei der der Dauermagnet mit dem Kolben (2) stoffschlüssig verbunden bzw. in den Kolben (2) oder in dessen Dichtung (3) integriert ist.It is a device for sensing the position, speed and / or the angle of rotation of a piston arranged in a cylinder proposed comprising a permanent magnet and a sensor for detecting the position of the permanent magnet, wherein the permanent magnet with the piston (2) integrally connected or in the piston (2) or in the seal (3) is integrated.

Description

Die vorliegende Erfindung betrifft eine Einrichtung zur Sensierung der Position, Drehzahl und/oder des Drehwinkels eines in einem Zylinder angeordneten Kolbens, umfassend einen Dauermagneten und einen Sensor zur Erfassung der Lage des Dauermagneten, gemäß dem Oberbegriff des Patentanspruchs 1.The The present invention relates to a device for sensing the Position, speed and / or the angle of rotation of a arranged in a cylinder Piston, comprising a permanent magnet and a sensor for detection the position of the permanent magnet, according to the preamble of claim 1

Aus dem Stand der Technik ist bekannt, zur Wegsensierung, die auf dem Magnet-Prinzip beruht, einen Dauermagneten als separates Teil an dem Kolben zu befestigen.Out The prior art is known for Wegsensierung on the Magnetic principle is based on a permanent magnet as a separate part to attach the piston.

Beispielsweise geht aus der DE 10 2004 027 117 A1 der Anmelderin eine Einrichtung zur Erfassung der Wegposition eines Kupplungskolbens zur Kupplungsbetätigung, der in einer rotierenden Kupplung angeordnet ist, hervor. Bei dieser bekannten Einrichtung zur Erfassung der Wegposition eines Kupplungskolbens zur Kupplungsbetätigung, der in einer rotierenden Kupplung axial verschiebbar angeordnet ist, erfolgt die Erfassung der Wegposition des Kupplungskolbens berührungslos, vorzugsweise über einen im inneren Durchmesser des Kolbens angeordneten Ringmagneten, dessen axiale Position von einem außerhalb der Kupplung angeordneten Sensor erfassbar ist.For example, goes from the DE 10 2004 027 117 A1 the Applicant a device for detecting the position of a clutch piston for clutch actuation, which is arranged in a rotating coupling, out. In this known device for detecting the positional position of a clutch piston for clutch actuation, which is arranged axially displaceably in a rotating clutch, the detection of the travel position of the clutch piston is non-contact, preferably via a ring magnet arranged in the inner diameter of the piston, the axial position of which outside Clutch arranged sensor can be detected.

Bei derartigen Konstruktionen entsteht der Nachteil, dass die Montagekosten für Kolben und Magneten relativ hoch sind. Des weiteren wirkt sich dies auf die Bauteiltoleranzen sowie auf den erforderlichen Bauraum nachteilig aus. Ein weiterer Nachteil besteht darin, dass durch die Befestigung eines Dauermagneten als separates Teil die mechanische Schock- und Vibrationsempfindlichkeit erhöht wird.at Such constructions creates the disadvantage that the installation costs for pistons and magnets are relatively high. Furthermore, this affects the component tolerances and the required space disadvantageous out. Another disadvantage is that by the attachment a permanent magnet as a separate part of the mechanical shock and Vibration sensitivity increased becomes.

Der vorliegenden Erfindung liegt die Aufgabe zugrunde, eine Einrichtung zur Sensierung der Position, Drehzahl und/oder des Drehwinkels eines Kolbens, umfassend einen Dauermagneten und einen Sensor zur Erfassung der Lage des Dauermagneten anzugeben, durch die aus den Konstruktionen nach dem Stand der Technik bekannte Nachteile vermieden werden.Of the present invention is based on the object, a device for sensing the position, speed and / or the angle of rotation of a Piston, comprising a permanent magnet and a sensor for detection indicate the position of the permanent magnet, through which the constructions According to the prior art known disadvantages are avoided.

Diese Aufgabe wird durch die Merkmale des Patentanspruchs 1 gelöst. Weitere erfindungsgemäße Ausgestaltungen und Vorteile gehen aus den Unteransprüchen hervor.These The object is solved by the features of claim 1. Further Embodiments of the invention and advantages are apparent from the dependent claims.

Demnach wird eine Einrichtung zur Sensierung der Position, Drehzahl und/oder des Drehwinkels eines Kolbens vorgeschlagen, umfassend einen Dauermagneten und einen Sensor zur Erfassung der Lage des Dauermagneten, bei der der Dauermagnet mit dem Kolben stoffschlüssig verbunden bzw. in den Kolben oder in dessen Dichtung integriert ist.Therefore is a device for sensing the position, speed and / or the angle of rotation of a piston proposed, comprising a permanent magnet and a sensor for detecting the position of the permanent magnet, wherein the permanent magnet with the piston cohesively connected or in the piston or integrated in its seal.

Gemäß der Erfindung kann die stoffschlüssige Verbindung zwischen dem Dauermagneten und dem Kolben beispielsweise durch Umspritzen oder Kleben hergestellt sein.According to the invention can the cohesive Connection between the permanent magnet and the piston, for example be made by molding or gluing.

Im Rahmen einer besonders vorteilhaften Ausführungsform der Erfindung besteht der Kolben ganz oder teilweise aus kunststoffgebundenem, dauermagnetischem Stoff.in the Frame of a particularly advantageous embodiment of the invention the piston wholly or partly made of plastic-bonded, permanent magnetic Material.

Bei einer weiteren Ausführungsform der Erfindung kann der Kolben eine ganz oder teilweise magnetische Dichtung aufweisen.at a further embodiment the invention, the piston is a wholly or partially magnetic Have seal.

Durch die erfindungsgemäße Konzeption wird die Anzahl der Bauteile in vorteilhafter Weise reduziert. Zudem werden Montageaufwand, Kosten, Toleranzen sowie der benötigte Bauraum reduziert, wobei die Schock- und Vibrationsempfindlichkeit der Einrichtung erhöht wird.By the concept of the invention is reduces the number of components in an advantageous manner. moreover Installation costs, costs, tolerances and the required installation space reduced, with the shock and vibration sensitivity of the device elevated becomes.

Die Erfindung wird im Folgenden anhand der beigefügten Figur, welche eine schematische Ansicht eines in einem Zylinder axial und radial beweglich angeordneten Kolbens darstellt, beispielhaft näher erläutert.The Invention will be described below with reference to the accompanying figure, which is a schematic View of a cylinder arranged axially and radially movable Piston represents, exemplified in more detail.

In der Figur ist der Zylinder mit 1, der im Zylinder 1 axial und radial beweglich angeordnete Kolben mit 2 und die Dichtung des Kolbens mit 3 bezeichnet, wobei die möglichen Bewegungsrichtungen des Kolbens 2 durch die beiden Pfeile veranschaulicht sind. Gemäß der Erfindung kann der Dauermagnet mit dem Kolben 2 stoffschlüssig verbunden oder in die Dichtung 3 integriert sein. Außerhalb des Zylinders 1 ist ein Sensor 4 angeordnet, welcher die radiale und/oder axiale Position des Kolbens 2 berührungslos erfasst.In the figure, the cylinder is with 1 that in the cylinder 1 axially and radially movably arranged piston with 2 and the seal of the piston with 3 designated, with the possible directions of movement of the piston 2 are illustrated by the two arrows. According to the invention, the permanent magnet with the piston 2 cohesively connected or in the seal 3 be integrated. Outside the cylinder 1 is a sensor 4 arranged, which the radial and / or axial position of the piston 2 detected without contact.

11
Zylindercylinder
22
Kolbenpiston
33
Dichtungpoetry
44
Sensorsensor

Claims (3)

Einrichtung zur Sensierung der Position, Drehzahl und/oder des Drehwinkels eines in einem Zylinder angeordneten Kolbens, umfassend einen Dauermagneten und einen Sensor zur Erfassung der Lage des Dauermagneten, dadurch gekennzeichnet, dass der Dauermagnet mit dem Kolben (2) stoffschlüssig verbunden bzw. in den Kolben (2) oder in dessen Dichtung (3) integriert ist.Device for sensing the position, rotational speed and / or the angle of rotation of a piston arranged in a cylinder, comprising a permanent magnet and a sensor for detecting the position of the permanent magnet, characterized in that the permanent magnet with the piston ( 2 ) or in the piston ( 2 ) or in its seal ( 3 ) is integrated. Einrichtung zur Sensierung der Position, Drehzahl und/oder des Drehwinkels eines in einem Zylinder angeordneten Kolbens nach Anspruch 1, dadurch gekennzeichnet, dass die stoffschlüssige Verbindung zwischen dem Dauermagneten und dem Kolben (2) durch Umspritzen oder Kleben hergestellt ist.Means for sensing the position, speed and / or the angle of rotation of a piston arranged in a cylinder according to claim 1, da characterized in that the cohesive connection between the permanent magnet and the piston ( 2 ) is made by molding or gluing. Einrichtung zur Sensierung der Position, Drehzahl und/oder des Drehwinkels eines in einem Zylinder angeordneten Kolbens nach Anspruch 1, dadurch gekennzeichnet, dass der Kolben (2) ganz oder teilweise aus kunststoffgebundenem, dauermagnetischem Stoff besteht.Device for sensing the position, rotational speed and / or the angle of rotation of a cylinder arranged in a piston according to claim 1, characterized in that the piston ( 2 ) consists wholly or partly of plastic-bound, permanent magnetic substance.
DE102006030999A 2006-07-05 2006-07-05 Device for sensing the position, speed and / or the angle of rotation of a piston Withdrawn DE102006030999A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE102006030999A DE102006030999A1 (en) 2006-07-05 2006-07-05 Device for sensing the position, speed and / or the angle of rotation of a piston
PCT/EP2007/056543 WO2008003648A2 (en) 2006-07-05 2007-06-29 Device for sensing the position, speed and/or rotational angle of a piston

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102006030999A DE102006030999A1 (en) 2006-07-05 2006-07-05 Device for sensing the position, speed and / or the angle of rotation of a piston

Publications (1)

Publication Number Publication Date
DE102006030999A1 true DE102006030999A1 (en) 2008-01-17

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Family Applications (1)

Application Number Title Priority Date Filing Date
DE102006030999A Withdrawn DE102006030999A1 (en) 2006-07-05 2006-07-05 Device for sensing the position, speed and / or the angle of rotation of a piston

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DE (1) DE102006030999A1 (en)
WO (1) WO2008003648A2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008011615A1 (en) * 2008-02-28 2009-10-29 Beru Ag linear sensor
US20160341628A1 (en) * 2015-05-22 2016-11-24 Goodrich Actuation Systems Sas Method for monitoring health of a seal

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102017111086A1 (en) * 2017-05-22 2018-11-22 Schaeffler Technologies AG & Co. KG Hydraulic cylinder with magnetic position measurement, in particular clutch slave cylinder

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3015258C2 (en) * 1980-04-21 1987-05-07 Festo-Maschinenfabrik Gottlieb Stoll, 7300 Esslingen Inductive piston position transmitter
GB2170353B (en) * 1984-12-29 1989-03-01 Martonair Ltd Fluid-operable device
GB8718173D0 (en) * 1987-07-31 1987-09-09 Norgren Martonair Ltd Sensing system

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008011615A1 (en) * 2008-02-28 2009-10-29 Beru Ag linear sensor
US8552713B2 (en) 2008-02-28 2013-10-08 Borgwarner Beru Systems Gmbh Linear sensor
US20160341628A1 (en) * 2015-05-22 2016-11-24 Goodrich Actuation Systems Sas Method for monitoring health of a seal
US10024754B2 (en) * 2015-05-22 2018-07-17 Goodrich Actuation Systems Sas Method for monitoring health of a seal

Also Published As

Publication number Publication date
WO2008003648A3 (en) 2008-02-28
WO2008003648A2 (en) 2008-01-10

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