DE102009010135A1 - Hydraulic cylinder for hydraulic coupling or braking actuating system, has piston provided with information carrier, which consists of annular information elements and is arranged on positioning aid inserted into piston - Google Patents

Hydraulic cylinder for hydraulic coupling or braking actuating system, has piston provided with information carrier, which consists of annular information elements and is arranged on positioning aid inserted into piston Download PDF

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Publication number
DE102009010135A1
DE102009010135A1 DE102009010135A DE102009010135A DE102009010135A1 DE 102009010135 A1 DE102009010135 A1 DE 102009010135A1 DE 102009010135 A DE102009010135 A DE 102009010135A DE 102009010135 A DE102009010135 A DE 102009010135A DE 102009010135 A1 DE102009010135 A1 DE 102009010135A1
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DE
Germany
Prior art keywords
piston
hydraulic cylinder
information
positioning aid
information elements
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Withdrawn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
DE102009010135A
Other languages
German (de)
Inventor
Yannick Christiaens
Sebastien Constantin
Volker Lang
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.)
Schaeffler Technologies AG and Co KG
Original Assignee
LuK Lamellen und Kupplungsbau Beteiligungs KG
LuK Lamellen und Kupplungsbau GmbH
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 LuK Lamellen und Kupplungsbau Beteiligungs KG, LuK Lamellen und Kupplungsbau GmbH filed Critical LuK Lamellen und Kupplungsbau Beteiligungs KG
Priority to DE102009010135A priority Critical patent/DE102009010135A1/en
Publication of DE102009010135A1 publication Critical patent/DE102009010135A1/en
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T7/00—Brake-action initiating means
    • B60T7/02—Brake-action initiating means for personal initiation
    • B60T7/04—Brake-action initiating means for personal initiation foot actuated
    • B60T7/042—Brake-action initiating means for personal initiation foot actuated by electrical means, e.g. using travel or force sensors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
    • B60T13/10—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release
    • B60T13/66—Electrical control in fluid-pressure brake systems
    • B60T13/662—Electrical control in fluid-pressure brake systems characterised by specified functions of the control system components
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T7/00—Brake-action initiating means
    • B60T7/02—Brake-action initiating means for personal initiation
    • B60T7/08—Brake-action initiating means for personal initiation hand actuated
    • B60T7/085—Brake-action initiating means for personal initiation hand actuated by electrical means, e.g. travel, force sensors

Abstract

The cylinder has a piston (1) axially moved in the cylinder, and provided with an information carrier. The information carrier consists of annular information elements (3, 4), and is arranged on a positioning aid (2), which is inserted into the piston. Ends of the positioning aid are formed as supports, which respectively comprise a diameter. The diameter of the supports respectively corresponds with an inner diameter of the information elements. The information elements comprise a distance (L) to the positioning aid.

Description

Die Erfindung betrifft einen Hydraulikzylinder mit einem Informationsgeber für ein hydraulisches Kupplungs- oder Bremsbetätigungssystem mit den Merkmalen des Oberbegriffs des Anspruchs 1.The The invention relates to a hydraulic cylinder with an information transmitter for a hydraulic clutch or brake actuation system with the features of the preamble of claim 1.

Zur Sensierung der axialen Stellung eines Kolbens bezüglich seines Gehäuses, eines Hydraulikzylinders, am Beispiel einer hydraulischen Kupplungsbetätigung, werden im Stand der Technik geeignete mechanische, elektrische oder magnetische Einrichtungen vorgeschlagen, wie beispielsweise in der US 4,705,151 oder DE 41 20 643 A1 . Die DE 199 15 832 A1 offenbart einen Geberzylinder, der einen längs verschieblich in einem Gehäuse angeordneten Kolben aufweist. Dieser Kolben besitzt eine Ringnut, die zur Aufnahme eines als Ringmagneten ausgebildeten Informationselementes dient. Auf dem Gehäuse des Geberzylinders sitzt ein Gehäuseteil, in dem zwei Hallschalter, sowie eine zugehörige Auswerteelektronik sowie ein Anschlusskontaktteil angeordnet sind. Mittels der Hallschalter wird durch die Wandung des Geberzylindergehäuses hindurch die Stellung des Ringmagneten und damit die Stellung des Kolbens erfasst, worauf das entsprechende Schaltsignal durch die Auswerteelektronik aufbereitet und sodann über das Anschlusskontaktteil zur weiteren Verarbeitung nach außen abgegeben wird.For sensing the axial position of a piston with respect to its housing, a hydraulic cylinder, the example of a hydraulic clutch actuation, in the prior art suitable mechanical, electrical or magnetic devices are proposed, such as in the US 4,705,151 or DE 41 20 643 A1 , The DE 199 15 832 A1 discloses a master cylinder having a longitudinally displaceably arranged in a housing piston. This piston has an annular groove which serves to receive an information element designed as a ring magnet. On the housing of the master cylinder sits a housing part in which two Hall switch, and an associated evaluation and a terminal contact part are arranged. By means of the Hall switch, the position of the ring magnet and thus the position of the piston is detected by the wall of the master cylinder housing, whereupon the corresponding switching signal is processed by the transmitter and then discharged through the terminal contact part for further processing to the outside.

Aus fertigungstechnischen Gründen wird oft auf die Ringnut zur Fixierung des Magneten verzichtet. Somit wird der relativ flache kreisringförmige Magnet parallel zur Frontfläche des Kolbens in diesen eingesetzt bzw. fixiert. Durch das Verhältnis der Dicke des Magneten zum Durchmesser des Kolbens besteht die Gefahr, dass einerseits bei der Montage des Magneten dieser auf dem Kolben verkippt bzw. sich auf diesem verklemmt. Andererseits bietet diese Lösung die Gefahr, dass die bei der Montage hergestellte Positionierung des Magneten im Betriebszustand des Geberzylinders nicht beibehalten wird. Wird der Magnet gleich bei der Herstellung des Kolbens z. B. durch Spritzgießen mit integriert, so muss dieser in der Spritzgussform exakt positioniert werden, was durch das magnetische Verhalten auch zu Problemen führen kann.Out Manufacturing reasons is often on the annular groove omitted for fixing the magnet. Thus, the relatively flat circular magnet parallel to the front surface of the piston inserted or fixed in this. By the ratio the thickness of the magnet to the diameter of the piston is at risk that on the one hand during assembly of the magnet of this on the piston tilted or jammed on this. On the other hand, this solution offers the danger that the positioning produced during assembly of the magnet is not maintained in the operating state of the master cylinder becomes. If the magnet is equal to the production of the piston z. B. by injection molding with integrated, it must be in the injection mold can be positioned exactly what is caused by the magnetic Behavior can also cause problems.

Es ist daher Aufgabe der Erfindung einen Hydraulikzylinder mit einem Informationsgeber zu schaffen, wobei der aus mindestens einem Informationselement bestehende Informationsgeber am axial bewegbaren Kolben im Hydraulikzylinder auf einfache Weise lagefixiert wird und die Positionierung des mindestens einen Informationselementes zum Hydraulikzylinder auch im Betriebszustand beibehalten wird.It is therefore an object of the invention is a hydraulic cylinder with a Information provider to create, with at least one information element existing information transmitter on the axially movable piston in the hydraulic cylinder is easily fixed in position and the positioning of at least an information element to the hydraulic cylinder in the operating state is maintained.

Diese Aufgabe wird mit einem Hydraulikzylinder mit den Merkmalen des Anspruchs 1 gelöst.These Task is with a hydraulic cylinder with the features of the claim 1 solved.

Vorteilhafte Ausgestaltungen ergeben sich aus den Unteransprüchen.advantageous Embodiments emerge from the subclaims.

Die Erfindung wird nachfolgend anhand eines Ausführungsbeispiels und zugehöriger Zeichnungen näher erläutert.The Invention will be described below with reference to an embodiment and associated drawings explained in more detail.

Es zeigen:It demonstrate:

1 eine Schnittdarstellung eines erfindungsgemäßen Kolbens mit integrierten Informationselementen, 1 a sectional view of a piston according to the invention with integrated information elements,

2 eine perspektivische Darstellung einer Positionierhilfe für zwei Informationselemente. 2 a perspective view of a positioning aid for two information elements.

1 zeigt eine Schnittdarstellung eines in einem Hydraulikzylinder axial bewegbaren erfindungsgemäßen Kolbens 1 mit bei dessen Herstellung eingegossenem Informationsgeber, der aus zwei Informationselementen 3 und 4 gebildet wird. Aus dieser Schnittdarstellung ist ersichtlich, dass in diesen Kolben 1 eine Positionierhilfe 2 integriert ist, auf der jeweils endseitig ein Informationselement 3 und 4 angeordnet ist. Die Positionierhilfe 2 ist dabei so ausgebildet, dass die Informationselemente 3, 4 unter einem Abstand L zueinander angeordnet sind. Durch das Eingießen der Informationselemente 3, 4 in den Kolben 1 wird sichergestellt, dass die Informationselemente 3, 4 eine definierte Lage im Kolben 1 einnehmen und diese auch während des Betriebes beibehalten. Diese Lagefixierung der Informationselemente 3, 4 im Kolben 1 ist wichtig für die Zuweisung der Position eines am oder im Gehäuse des Hydraulikzylinders angebrachten Sensors. 1 shows a sectional view of an axially movable in a hydraulic cylinder piston according to the invention 1 with information transmitter cast in its manufacture, consisting of two information elements three and 4 is formed. From this sectional view it can be seen that in this piston 1 a positioning aid 2 is integrated, on each end an information element three and 4 is arranged. The positioning aid 2 is designed so that the information elements three . 4 are arranged at a distance L to each other. By pouring the information elements three . 4 in the pistons 1 will ensure that the information elements three . 4 a defined position in the piston 1 and maintain it during operation. This position fixation of the information elements three . 4 in the piston 1 is important for assigning the position of a sensor mounted on or in the housing of the hydraulic cylinder.

Durch die Verwendung der Positionierhilfe 2 ist es möglich, die Informationselemente 3, 4 bereits vor dem Einbringen in den Kolben 1 auf diesem unter einem definierten Abstand L zu positionieren, wie dies aus 2 ersichtlich ist. Dazu wird die Positionierhilfe 2 jeweils endseitig mit Stutzen 2a, 2b versehen. Dabei weist der Stutzen 2a einen Durchmesser D1 und der Stutzen 2b einen Durchmesser D2 auf. Der Durchmesser D1 des Stutzens 2a ist dabei an den Innendurchmesser d3 des Informationselementes 3 und der Durchmesser D2 des Stutzens 2b an den Innendurchmesser d4 des Informationselementes 4 angepasst. Über die Länge der Stutzen 2a, 2b ist der gewünschte Abstand L zwischen den Informationselementen 3, 4 einstellbar.By using the positioning aid 2 is it possible to use the information elements three . 4 already before introduction into the piston 1 to position it on this at a defined distance L, like this 2 is apparent. This is the positioning help 2 each end with nozzle 2a . 2 B Mistake. In this case, the nozzle has 2a a diameter D1 and the neck 2 B a diameter D2. The diameter D1 of the neck 2a is at the inner diameter d3 of the information element three and the diameter D2 of the neck 2 B to the inner diameter d4 of the information element 4 customized. About the length of the neck 2a . 2 B is the desired distance L between the information elements three . 4 adjustable.

Nachdem die Informationselemente 3, 4 auf die Positionierhilfe 2 aufgeschoben sind, wird diese in einer entsprechenden Form positioniert eingelegt und umgossen, so dass ein Kolben 1 mit eingegossenem und damit lagepositioniertem Informationsgeber für einen Hydraulikzylinder entsteht.After the information elements three . 4 on the positioning aid 2 deferred, this is placed in an appropriate shape and cast around, leaving a piston 1 created with cast and thus positionally positioned information transmitter for a hydraulic cylinder.

aa
Kolbenpiston
bb
Positionierhilfepositioning
2a2a
StutzenSupport
2b2 B
StutzenSupport
cc
Informationselementinformation element
dd
Informationselementinformation element
D1D1
Durchmesser Stutzendiameter Support
D2D2
Durchmesser Stutzendiameter Support
d3d3
Innendurchmesser InformationselementInner diameter information element
d4d4
Innendurchmesser InformationselementInner diameter information element
LL
Abstand der Informationselementedistance the information elements

ZITATE ENTHALTEN IN DER BESCHREIBUNGQUOTES INCLUDE IN THE DESCRIPTION

Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.

Zitierte PatentliteraturCited patent literature

  • - US 4705151 [0002] US 4705151 [0002]
  • - DE 4120643 A1 [0002] - DE 4120643 A1 [0002]
  • - DE 19915832 A1 [0002] DE 19915832 A1 [0002]

Claims (6)

Hydraulikzylinder mit in diesem axial bewegbaren Kolben (1), wobei der Kolben (1) mit einem Informationsgeber versehen ist, der aus mindestens einem kreisringförmigen Informationselement (3, 4) besteht, dadurch gekennzeichnet, dass der Informationsgeber auf einer in den Kolben (1) eingebrachten Positionierhilfe (2) angeordnet ist.Hydraulic cylinder with in this axially movable piston ( 1 ), the piston ( 1 ) is provided with an information transmitter consisting of at least one annular information element ( three . 4 ), characterized in that the information transmitter is placed on one of the pistons ( 1 ) Positioning aid ( 2 ) is arranged. Hydraulikzylinder nach Anspruch 1, dadurch gekennzeichnet, dass die Enden der Positionierhilfe (2) als Stutzen (2a, 2b) ausgebildet sind.Hydraulic cylinder according to claim 1, characterized in that the ends of the positioning aid ( 2 ) as a nozzle ( 2a . 2 B ) are formed. Hydraulikzylinder nach Anspruch 2, dadurch gekennzeichnet, dass der Stutzen (2a) einen Durchmesser (D1) und der Stutzen (2b) einen Durchmesser (D2) aufweist.Hydraulic cylinder according to claim 2, characterized in that the neck ( 2a ) a diameter (D1) and the neck ( 2 B ) has a diameter (D2). Hydraulikzylinder nach Anspruch 1, dadurch gekennzeichnet, dass das Informationselement (3) einen Innendurchmesser (d3) und das Informationselement (4) einen Innendurchmesser (d4) besitzt.Hydraulic cylinder according to claim 1, characterized in that the information element ( three ) an inner diameter (d3) and the information element ( 4 ) has an inner diameter (d4). Hydraulikzylinder nach Anspruch 3 und 4, dadurch gekennzeichnet, dass der Durchmesser (D1) des Stutzens (2a) mit dem Innendurchmesser (d3) des Informationselementes (3) und der Durchmesser (D2) des Stutzens (2b) mit dem Innendurchmesser (d4) des Informationselementes (4) korrespondiert.Hydraulic cylinder according to claim 3 and 4, characterized in that the diameter (D1) of the nozzle ( 2a ) with the inner diameter (d3) of the information element ( three ) and the diameter (D2) of the nozzle ( 2 B ) with the inner diameter (d4) of the information element ( 4 ) corresponds. Hydraulikzylinder nach Anspruch 1, dadurch gekennzeichnet, dass die Informationselemente (3, 4) auf der Positionierhilfe (2) einen Abstand (L) zueinander aufweisen.Hydraulic cylinder according to claim 1, characterized in that the information elements ( three . 4 ) on the positioning aid ( 2 ) have a distance (L) to each other.
DE102009010135A 2008-03-13 2009-02-23 Hydraulic cylinder for hydraulic coupling or braking actuating system, has piston provided with information carrier, which consists of annular information elements and is arranged on positioning aid inserted into piston Withdrawn DE102009010135A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE102009010135A DE102009010135A1 (en) 2008-03-13 2009-02-23 Hydraulic cylinder for hydraulic coupling or braking actuating system, has piston provided with information carrier, which consists of annular information elements and is arranged on positioning aid inserted into piston

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102008014244.1 2008-03-13
DE102008014244 2008-03-13
DE102009010135A DE102009010135A1 (en) 2008-03-13 2009-02-23 Hydraulic cylinder for hydraulic coupling or braking actuating system, has piston provided with information carrier, which consists of annular information elements and is arranged on positioning aid inserted into piston

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DE102009010135A1 true DE102009010135A1 (en) 2009-09-17

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DE102009010135A Withdrawn DE102009010135A1 (en) 2008-03-13 2009-02-23 Hydraulic cylinder for hydraulic coupling or braking actuating system, has piston provided with information carrier, which consists of annular information elements and is arranged on positioning aid inserted into piston

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011100903A1 (en) 2010-06-14 2012-03-08 Schaeffler Technologies Gmbh & Co. Kg Hydraulic clutch or brake actuation system, has master cylinder, slave cylinder connected to pressure line, where information transmitter is radially movable, and is mounted on piston in radially outwardly biased manner

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4705151A (en) 1985-10-31 1987-11-10 Automotive Product Plc Hydraulic slave cylinder interlock switching device with proximity sensor
DE4120643A1 (en) 1991-06-22 1992-12-24 Fichtel & Sachs Ag FRICTION COUPLING WITH TRAVEL SENSOR
DE19915832A1 (en) 1999-04-08 2000-07-06 Bayerische Motoren Werke Ag Vehicle with position transducer for power control element has Hall switch with magnet integrated into transducer cylinder and pick-up part for mounting on housing of transducer cylinder

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4705151A (en) 1985-10-31 1987-11-10 Automotive Product Plc Hydraulic slave cylinder interlock switching device with proximity sensor
DE4120643A1 (en) 1991-06-22 1992-12-24 Fichtel & Sachs Ag FRICTION COUPLING WITH TRAVEL SENSOR
DE19915832A1 (en) 1999-04-08 2000-07-06 Bayerische Motoren Werke Ag Vehicle with position transducer for power control element has Hall switch with magnet integrated into transducer cylinder and pick-up part for mounting on housing of transducer cylinder

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011100903A1 (en) 2010-06-14 2012-03-08 Schaeffler Technologies Gmbh & Co. Kg Hydraulic clutch or brake actuation system, has master cylinder, slave cylinder connected to pressure line, where information transmitter is radially movable, and is mounted on piston in radially outwardly biased manner
DE102011100903B4 (en) 2010-06-14 2020-06-18 Schaeffler Technologies AG & Co. KG Hydraulic clutch or brake control system

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