EP3505418A1 - Rail vehicle suspension - Google Patents

Rail vehicle suspension Download PDF

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Publication number
EP3505418A1
EP3505418A1 EP18199213.2A EP18199213A EP3505418A1 EP 3505418 A1 EP3505418 A1 EP 3505418A1 EP 18199213 A EP18199213 A EP 18199213A EP 3505418 A1 EP3505418 A1 EP 3505418A1
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EP
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Prior art keywords
rim
top plate
plate
rail vehicle
sliding plate
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Granted
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EP18199213.2A
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German (de)
French (fr)
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EP3505418B1 (en
Inventor
Harald Kranz
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ContiTech Luftfedersysteme GmbH
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ContiTech Luftfedersysteme GmbH
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61F—RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES; RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH; PREVENTING DERAILING OF RAIL VEHICLES; WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAIL VEHICLES
    • B61F5/00—Constructional details of bogies; Connections between bogies and vehicle underframes; Arrangements or devices for adjusting or allowing self-adjustment of wheel axles or bogies when rounding curves
    • B61F5/02—Arrangements permitting limited transverse relative movements between vehicle underframe or bolster and bogie; Connections between underframes and bogies
    • B61F5/04—Bolster supports or mountings
    • B61F5/10—Bolster supports or mountings incorporating fluid springs

Definitions

  • the invention relates to a rail vehicle suspension with an air spring, arranged between sprung mass and unsprung mass, namely between the body or car body and chassis or subframe of a rail vehicle, the rail vehicle suspension having a rim and a rim of the opposite top plate, wherein the rim with a sliding plate is provided and rim and top plate are arranged so that in case of failure of the air spring, the sliding plate and the top plate to each other or each other and so the body is supported on the subframe.
  • Such rail vehicle suspensions usually include an air spring as a main spring and a rubber spring or block spring as an emergency spring.
  • Main spring and emergency spring are arranged between the vehicle body and subframe of the vehicle so that in case of failure of the main spring, the body is supported on the chassis by the emergency spring and the support via opposite co-operating body side and chassis side support and sliding surfaces or sliding plates / sliding takes place. These sliding plates then provide for reduced friction and for trouble-free support in emergency operation.
  • the EP 1 644 234 B1 a centering Notfederabstützung for an air spring, in which the connected via the air spring bellows rims have guide grooves which are intended to prevent a lateral offset of the car body with respect to the chassis when resting the car body on the emergency spring / auxiliary spring.
  • the mutually inclined surfaces of the guide grooves and their counterparts are provided with sliding elements in order to reduce the friction during rotations or transverse displacements of the car body relative to the chassis.
  • measuring devices or sensors are known in the art, which are usually arranged within the air spring, that is, within the air spring bellows between the rim and the top plate of such suspension. Such measuring systems therefore require additional space and are also problematic in terms of their integration and cabling in the overall system.
  • top plate of the air suspension In the normal operating condition exists between the top plate of the air suspension and the underlying system part "rim", which in rail vehicle air springs usually has a Gleitplattenability with a sliding plate, an air gap. At higher pressure loss or too strong or considerable impact load or it may also come to a direct contact of the top plate and sliding plate, so that the air gap is no longer present. In such a direct contact between the top plate and rim or sliding plate located inside the air spring sensor components can be damaged or destroyed.
  • the task was to detect the distance between the top plate and rim or sliding plate using a sensor that does not require special requirements of the available space that allows easy connection options from the outside, can reliably detect the loading conditions and emergency situations, which is not damaged even in direct contact of the top plate and sliding plate and by environmental influences, such as Temperature or humidity, not affected.
  • the rim or sliding plate on the one hand and the top plate on the other hand form cooperating parts of a sensor or sensor system which, depending on the distance between the rim or sliding plate and the top plate an electrical Generate signal.
  • the already existing in the air suspension components are used as sensor components, so that additional, prominent within the suspension internals completely eliminated.
  • the proportional to the load adjusting air gap between the rim or sliding plate and top plate can be measured so permanently, with both the load or load condition as well as a direct contact, for. B. overload, can be detected.
  • This warning system is thus integrated in the air spring and works without feedthroughs for cables or data lines, since both the top plate and the rim or sliding plate are accessible from the outside.
  • the cooperating parts form an inductive sensor, in which preferably the top plate a coil and the rim or sliding plate have a ferritic material and the sensor of the one with the distance between the rim or sliding plate and the top plate changing Inductance dependent signal generated.
  • a further advantageous embodiment is that the cooperating parts form a capacitive sensor, in which capacitively effective surfaces are provided in or on the top plate and in or on the rim or sliding plate and the sensor of the one with the distance between the rim or sliding plate and the top plate generates changing capacitive dependent signal.
  • This creates in principle a capacitor of two electrically charged surfaces, which are separated by a dielectric.
  • the upper plate of the air spring, the one capacitor surface / surface and the rim or the sliding plate or Gleitplatten can now be determined with suitable calibration in a simple and reliable way, the distance between the two parts.
  • Fig. 1 shows in principle the front part of a rail-bound Kurzfflentriebwagens 1 with a subframe or chassis 2, which is connected via a rail vehicle air suspension 3 with the body 4 of the railcar 1.
  • Fig. 2 shows the rail vehicle suspension 3 with a so-called “semi-bellows” formed bellows air spring 5 with an air connection 6 in more detail.
  • the air suspension 3 has a rim 7 and a rim of the opposite top plate 8, wherein the rim 7 is provided with an annular sliding plate 9.
  • the slide plate 9 is connected to the rim 7 via a slide plate holder 9b.
  • Rim 7 and top plate 8 are arranged so that in case of failure of the air spring 5, the slide plate 9 and the top plate 8 are adjacent to each other and so the body 4 is supported on the subframe 2
  • a rubber-metal spring is arranged as an additional spring 10.
  • the cooperating parts form a capacitive sensor, in which 9 capacitively effective surfaces 11 are provided on the top plate 8 and in or on the slide plate.
  • top plate and sliding plate sensor generates a dependent on the changing with the distance between the sliding plate and the top plate capacity electrical signal, which is supplied via lines 12 to another monitoring, display or control unit for the air supply.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Vehicle Body Suspensions (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)

Abstract

Schienenfahrzeugfederung mit einer Luftfeder, angeordnet zwischen gefederter Masse und ungefederter Masse, nämlich zwischen Karosserie bzw. Wagenkasten und Fahrwerk bzw. Fahrschemel eines Schienenfahrzeugs, wobei die Schienenfahrzeugfederung eine Felge und eine der Felge gegenüberliegende Oberplatte aufweist, wobei die Felge mit einer Gleitplatte versehen ist und Felge und Oberplatte so angeordnet sind, dass bei einem Ausfall der Luftfeder die Gleitplatte und die Oberplatte aneinander bzw. aufeinander liegen und so die Karosserie am Fahrschemel abgestützt ist, wobei die Felge oder Gleitplatte einerseits und die Oberplatte andererseits zusammenwirkende Teile eines Sensors oder Sensorsystems ausbilden, die abhängig vom Abstand zwischen der Felge oder Gleitplatte und der Oberplatte ein elektrisches Signal erzeugen.Rail vehicle suspension with an air spring, arranged between sprung mass and unsprung mass, namely between the body or car body and chassis or subframe of a rail vehicle, the rail vehicle suspension having a rim and an upper plate opposite the rim, the rim being provided with a sliding plate and rim and the top plate are arranged so that in the event of a failure of the air spring, the slide plate and the top plate lie against or on top of each other and the body is supported on the subframe, the rim or slide plate on the one hand and the top plate on the other hand forming interacting parts of a sensor or sensor system which generate an electrical signal depending on the distance between the rim or sliding plate and the top plate.

Description

Die Erfindung betrifft eine Schienenfahrzeugfederung mit einer Luftfeder, angeordnet zwischen gefederter Masse und ungefederter Masse, nämlich zwischen Karosserie bzw. Wagenkasten und Fahrwerk bzw. Fahrschemel eines Schienenfahrzeugs, wobei die Schienenfahrzeugfederung eine Felge und eine der Felge gegenüberliegende Oberplatte aufweist, wobei die Felge mit einer Gleitplatte versehen ist und Felge und Oberplatte so angeordnet sind, dass bei einem Ausfall der Luftfeder die Gleitplatte und die Oberplatte aneinander bzw. aufeinander liegen und so die Karosserie am Fahrschemel abgestützt ist.The invention relates to a rail vehicle suspension with an air spring, arranged between sprung mass and unsprung mass, namely between the body or car body and chassis or subframe of a rail vehicle, the rail vehicle suspension having a rim and a rim of the opposite top plate, wherein the rim with a sliding plate is provided and rim and top plate are arranged so that in case of failure of the air spring, the sliding plate and the top plate to each other or each other and so the body is supported on the subframe.

Solche Schienenfahrzeugfederungen beinhalten in aller Regel eine Luftfeder als Hauptfeder und eine Gummifeder oder Blockfeder als Notfeder. Hauptfeder und Notfeder sind zwischen Wagenkasten und Fahrschemel des Fahrzeuges so angeordnet, dass bei einem Ausfall der Hauptfeder die Karosserie am Fahrwerk durch die Notfeder abgestützt wird und die Abstützung über gegenüberliegende zusammenwirkende karosserieseitige und fahrgestellseitige Auflage- und Gleitflächen bzw. Gleitplatten/Gleitelemente erfolgt. Diese Gleitplatten sorgen dann für eine verminderte Reibung und für eine problemlose Abstützung im Notlaufbetrieb.Such rail vehicle suspensions usually include an air spring as a main spring and a rubber spring or block spring as an emergency spring. Main spring and emergency spring are arranged between the vehicle body and subframe of the vehicle so that in case of failure of the main spring, the body is supported on the chassis by the emergency spring and the support via opposite co-operating body side and chassis side support and sliding surfaces or sliding plates / sliding takes place. These sliding plates then provide for reduced friction and for trouble-free support in emergency operation.

Hierzu offenbart die EP 1 644 234 B1 eine zentrierende Notfederabstützung für eine Luftfeder, bei der die über die Luftfeder verbundenen Balgfelgen Führungsnuten aufweisen, die bei Auflage des Wagenkastens auf der Notfeder/Zusatzfeder einen seitlichen Versatz des Wagenkastens in Bezug auf das Fahrgestell verhindern sollen. Die einander zugeneigten Flächen der Führungsnuten und ihrer Gegenstücke sind mit Gleitelementen versehen, um bei Verdrehungen oder Querverschiebungen des Wagenkastens relativ zum Fahrgestell die Reibung zu vermindern.For this purpose, the EP 1 644 234 B1 a centering Notfederabstützung for an air spring, in which the connected via the air spring bellows rims have guide grooves which are intended to prevent a lateral offset of the car body with respect to the chassis when resting the car body on the emergency spring / auxiliary spring. The mutually inclined surfaces of the guide grooves and their counterparts are provided with sliding elements in order to reduce the friction during rotations or transverse displacements of the car body relative to the chassis.

Auch bei solchen mit Notlaufsystemen ausgerüsteten Fahrwerken ist es in der Praxis wünschenswert, möglichst frühzeitig einen beginnenden Luftverlust in einem Federungssystem zu erkennen. Hierzu sind im Stand der Technik Messeinrichtungen oder Sensoren bekannt, die in aller Regel innerhalb der Luftfeder, das heißt innerhalb des Luftfederbalges zwischen der Felge und der Oberplatte einer solchen Federung angeordnet sind. Solche Messsysteme benötigen daher zusätzlichen Bauraum und sind auch in Bezug auf ihre Einbindung und Verkabelung im Gesamtsystem problematisch.Even in such equipped with emergency running gear chassis, it is desirable in practice to recognize as early as possible a beginning air loss in a suspension system. For this purpose, measuring devices or sensors are known in the art, which are usually arranged within the air spring, that is, within the air spring bellows between the rim and the top plate of such suspension. Such measuring systems therefore require additional space and are also problematic in terms of their integration and cabling in the overall system.

Im normalen Betriebszustand besteht zwischen der Oberplatte der Luftfederung und dem darunterliegenden Systemteil "Felge", welches bei Schienenfahrzeugluftfedern in der Regel eine Gleitplattenaufnahme mit einer Gleitplatte aufweist, ein Luftspalt. Bei höherem Druckverlust oder bei zu starker bzw. erheblicher stoßförmiger Belastung bzw. kann es auch zu einem direkten Kontakt von Oberplatte und Gleitplatte, kommen, so dass der Luftspalt nicht mehr vorhanden ist. Bei einem solchen direkten Kontakt zwischen Oberplatte und Felge bzw. Gleitplatte können innerhalb der Luftfeder befindliche Sensorikbauteile geschädigt oder zerstört werden.In the normal operating condition exists between the top plate of the air suspension and the underlying system part "rim", which in rail vehicle air springs usually has a Gleitplattenaufnahme with a sliding plate, an air gap. At higher pressure loss or too strong or considerable impact load or it may also come to a direct contact of the top plate and sliding plate, so that the air gap is no longer present. In such a direct contact between the top plate and rim or sliding plate located inside the air spring sensor components can be damaged or destroyed.

Für die Erfindung bestand also die Aufgabe, den Abstand zwischen Oberplatte und Felge bzw. Gleitplatte mithilfe einer Sensorik zu erfassen, die keine besonderen Erfordernisse an dem zur Verfügung stehenden Bauraum stellt, die einfache Anschlussmöglichkeiten von außen erlaubt, die Beladungszustande und Notsituationen sicher detektieren kann, die auch bei direkten Kontakt von Oberplatte und Gleitplatte nicht beschädigt wird und die durch Umgebungseinflüsse, wie z.B. Temperatur oder Feuchtigkeit, nicht beeinflusst wird.For the invention, therefore, the task was to detect the distance between the top plate and rim or sliding plate using a sensor that does not require special requirements of the available space that allows easy connection options from the outside, can reliably detect the loading conditions and emergency situations, which is not damaged even in direct contact of the top plate and sliding plate and by environmental influences, such as Temperature or humidity, not affected.

Gelöst wird diese Aufgabe durch die Merkmale des Hauptanspruchs. Weitere vorteilhafte Ausbildungen sind in den Unteransprüchen offenbart.This object is achieved by the features of the main claim. Further advantageous embodiments are disclosed in the subclaims.

Dabei bilden erfindungsgemäß die Felge oder Gleitplatte einerseits und die Oberplatte andererseits zusammenwirkende Teile eines Sensors oder Sensorsystems aus, die abhängig vom Abstand zwischen der Felge oder Gleitplatte und der Oberplatte ein elektrisches Signal erzeugen. Damit werden die bereits in der Luftfederung vorhandenen Bauteilen als Sensorbauteile genutzt, so dass zusätzliche, innerhalb der Federung prominent ausgebildete Einbauten völlig entfallen.In this case, according to the invention, the rim or sliding plate on the one hand and the top plate on the other hand form cooperating parts of a sensor or sensor system which, depending on the distance between the rim or sliding plate and the top plate an electrical Generate signal. Thus, the already existing in the air suspension components are used as sensor components, so that additional, prominent within the suspension internals completely eliminated.

Der proportional zur Belastung sich einstellende Luftspalt zwischen Felge oder Gleitplatte und Oberplatte kann so permanent gemessen werden, wobei sowohl der Beladungs- oder Belastungszustand als auch ein direkter Kontakt, z. B. bei Überlastung, detektiert werden können. Dieses Warnsystem ist somit in der Luftfeder integriert und arbeitet ohne Durchführungen für Kabel oder Datenleitungen, da sowohl die Oberplatte als auch die Felge oder Gleitplatte von außen zugängig sind.The proportional to the load adjusting air gap between the rim or sliding plate and top plate can be measured so permanently, with both the load or load condition as well as a direct contact, for. B. overload, can be detected. This warning system is thus integrated in the air spring and works without feedthroughs for cables or data lines, since both the top plate and the rim or sliding plate are accessible from the outside.

Eine vorteilhafte Weiterbildung besteht darin, dass die zusammenwirkenden Teile einen induktiven Sensor bilden, bei dem vorzugsweise die Oberplatte eine Spule und die Felge oder Gleitplatte ein ferritisches Material aufweisen und der Sensor ein von der mit dem Abstand zwischen der Felge oder Gleitplatte und der Oberplatte sich ändernden Induktivität abhängiges Signal erzeugt. Damit ergibt sich eine mit einfachen Bauteilen zu realisierende Sensorik, die es erlaubt, permanent und ohne großen Aufwand den Abstand zu messen.An advantageous development is that the cooperating parts form an inductive sensor, in which preferably the top plate a coil and the rim or sliding plate have a ferritic material and the sensor of the one with the distance between the rim or sliding plate and the top plate changing Inductance dependent signal generated. This results in a sensor to be realized with simple components, which allows to measure the distance permanently and without much effort.

Eine weitere vorteilhafte Ausbildung besteht darin, dass die zusammenwirkenden Teile einen kapazitiven Sensor bilden, bei dem in oder an der Oberplatte und in oder an der Felge oder Gleitplatte kapazitiv wirksame Flächen vorgesehen sind und der Sensor ein von der mit dem Abstand zwischen der Felge oder Gleitplatte und der Oberplatte sich ändernden Kapazität abhängiges Signal erzeugt. Damit entsteht im Prinzip ein Kondensator aus zwei elektrisch geladenen Flächen, die durch ein Dielektrikum getrennt sind. Hier bildet nun die Oberplatte der Luftfeder die eine Kondensatorfläche/-oberfläche und die die Felge bzw. die Gleitplatte oder der Gleitplattenträger die gegenüberliegende Kondensatoroberfläche. Ober eine Kapazitätsmessung kann nun bei geeigneter Kalibrierung auf einfache und zuverlässige Weise der Abstand zwischen beiden Teilen bestimmt werden.A further advantageous embodiment is that the cooperating parts form a capacitive sensor, in which capacitively effective surfaces are provided in or on the top plate and in or on the rim or sliding plate and the sensor of the one with the distance between the rim or sliding plate and the top plate generates changing capacitive dependent signal. This creates in principle a capacitor of two electrically charged surfaces, which are separated by a dielectric. Here now forms the upper plate of the air spring, the one capacitor surface / surface and the rim or the sliding plate or Gleitplattenträger the opposite capacitor surface. A capacitance measurement can now be determined with suitable calibration in a simple and reliable way, the distance between the two parts.

Anhand eines Ausführungsbeispiels soll die Erfindung näher erläutert werden. Es zeigen

Fig. 1
prinzipiell den vorderen Teil eines schienengebundenen Kurzstreckentriebwagens,
Fig. 2
die erfindungsgemäße Schienenfahrzeugfederung des Kurzstreckentriebwagens nach Fig.1, bei der Gleitplatte und Oberplatte einen kapazitiven Sensor bilden.
Reference to an embodiment of the invention will be explained in more detail. Show it
Fig. 1
in principle the front part of a rail-bound short-distance railcar,
Fig. 2
the rail vehicle suspension according to the invention of the short-distance railcar after Fig.1 in which sliding plate and top plate form a capacitive sensor.

Fig. 1 zeigt prinzipiell den vorderen Teil eines schienengebundenen Kurzstreckentriebwagens 1 mit einen Fahrschemel bzw. Fahrgestell 2, welches über eine Schienenfahrzeugluftfederung 3 mit der Karosserie 4 des Triebwagens 1 verbunden ist. Fig. 1 shows in principle the front part of a rail-bound Kurzstreckentriebwagens 1 with a subframe or chassis 2, which is connected via a rail vehicle air suspension 3 with the body 4 of the railcar 1.

Fig. 2 zeigt die Schienenfahrzeugfederung 3 mit einer als so genannter "Halbbalg" ausgebildeten Balgluftfeder 5 mit einem Luftanschluss 6 etwas detaillierter. Die Luftfederung 3 weist eine Felge 7 und eine der Felge gegenüberliegende Oberplatte 8 aufweist, wobei die Felge 7 mit einer ringförmigen Gleitplatte 9 versehen ist. Die Gleitplatte 9 ist über eine Gleitplattenaufnahme 9b mit der Felge 7 verbunden. Felge 7 und Oberplatte 8 sind so angeordnet, dass bei einem Ausfall der Luftfeder 5 die Gleitplatte 9 und die Oberplatte 8 aneinander bzw. aufeinander liegen und so die Karosserie 4 am Fahrschemel 2 abgestützt ist Fig. 2 shows the rail vehicle suspension 3 with a so-called "semi-bellows" formed bellows air spring 5 with an air connection 6 in more detail. The air suspension 3 has a rim 7 and a rim of the opposite top plate 8, wherein the rim 7 is provided with an annular sliding plate 9. The slide plate 9 is connected to the rim 7 via a slide plate holder 9b. Rim 7 and top plate 8 are arranged so that in case of failure of the air spring 5, the slide plate 9 and the top plate 8 are adjacent to each other and so the body 4 is supported on the subframe 2

Innerhalb der Schienenfahrzeugluftfederung 3 ist eine Gummi-Metall-Feder als Zusatzfeder 10 angeordnet.Within the rail vehicle air suspension 3, a rubber-metal spring is arranged as an additional spring 10.

Bei der in der Fig. 2 dargestellten Ausführung einer Schienenfahrzeugfederung bilden die zusammenwirkenden Teile einen kapazitiven Sensor, bei dem an der Oberplatte 8 und in oder an der Gleitplatte 9 kapazitiv wirksame Flächen 11 vorgesehen sind.When in the Fig. 2 illustrated embodiment of a rail vehicle suspension, the cooperating parts form a capacitive sensor, in which 9 capacitively effective surfaces 11 are provided on the top plate 8 and in or on the slide plate.

Der somit aus Oberplatte und Gleitplatte aufgebaute Sensor erzeugt ein von der mit dem Abstand zwischen der Gleitplatte und der Oberplatte sich ändernden Kapazität abhängiges elektrisches Signal, welches über die Leitungen 12 einer weiteren Überwachung, Anzeige oder Steuerungseinheit für die Luftzufuhr zugeleitet wird.The thus constructed of top plate and sliding plate sensor generates a dependent on the changing with the distance between the sliding plate and the top plate capacity electrical signal, which is supplied via lines 12 to another monitoring, display or control unit for the air supply.

BezugszeichenlisteLIST OF REFERENCE NUMBERS (Teil der Beschreibung)(Part of the description)

11
KurzstreckentriebwagenShort railcars
22
Fahrgestell, FahrschemelChassis, subframe
33
SchienenfahrzeugfederungRail vehicle suspension
44
Karosseriebody
55
BalgluftfederBalgluftfeder
66
Luftanschlussair connection
77
Felgerim
88th
Oberplattetop plate
99
Gleitplattesliding plate
9b9b
GleitplattenaufnahmeGleitplattenaufnahme
1010
Zusatzfederadditional spring
1111
Kapazitiv wirksame FlächeCapacitive effective area
1212
Leitungmanagement

Claims (3)

Schienenfahrzeugfederung (3) mit einer Luftfeder (5), angeordnet zwischen gefederter Masse und ungefederter Masse, nämlich zwischen Karosserie bzw. Wagenkasten (4) und Fahrwerk bzw. Fahrschemel (2) eines Schienenfahrzeugs (1), wobei die Schienenfahrzeugfederung (3) eine Felge (7) und eine der Felge gegenüberliegende Oberplatte (8) aufweist, wobei die Felge (7) mit einer Gleitplatte (9) versehen ist und Felge (7) und Oberplatte (8) so angeordnet sind, dass bei einem Ausfall der Luftfeder (5) die Gleitplatte (9) und die Oberplatte (8) aneinander bzw. aufeinander liegen und so die Karosserie (4) am Fahrschemel (2) abgestützt ist, dadurch gekennzeichnet, dass die Felge oder Gleitplatte (7, 9) einerseits und die Oberplatte (8) andererseits zusammenwirkende Teile (11) eines Sensors oder Sensorsystems ausbilden, die abhängig vom Abstand zwischen der Felge oder Gleitplatte (7, 9) und der Oberplatte (8) ein elektrisches Signal erzeugen.Rail vehicle suspension (3) with an air spring (5), arranged between sprung mass and unsprung mass, namely between body or car body (4) and chassis or subframe (2) of a rail vehicle (1), wherein the rail vehicle suspension (3) a rim (7) and one of the rim opposite upper plate (8), wherein the rim (7) is provided with a sliding plate (9) and rim (7) and top plate (8) are arranged so that in case of failure of the air spring (5 ), the sliding plate (9) and the top plate (8) to each other and lie on one another and so the body (4) on the subframe (2) is supported, characterized in that the rim or sliding plate (7, 9) on the one hand and the top plate ( 8) on the other hand forming cooperating parts (11) of a sensor or sensor system, which generate an electrical signal depending on the distance between the rim or sliding plate (7, 9) and the top plate (8). Schienenfahrzeugfederung nach Anspruch 1, bei der die zusammenwirkenden Teile einen induktiven Sensor bilden, bei dem vorzugsweise die Oberplatte (8) eine Spule und die Felge oder Gleitplatte (7, 9) ein ferritisches Material aufweisen und der Sensor ein von der mit dem Abstand zwischen der Felge oder Gleitplatte und der Oberplatte sich ändernden Induktivität abhängiges Signal erzeugt.A railroad vehicle suspension according to claim 1, in which the cooperating parts form an inductive sensor in which preferably the top plate (8) comprises a coil and the rim or slide plate (7, 9) comprises a ferritic material and the sensor is spaced from the one with the distance between them Rim or sliding plate and the top plate generates changing inductance-dependent signal. Schienenfahrzeugfederung nach Anspruch 1, bei der die zusammenwirkenden Teile einen kapazitiven Sensor bilden, bei dem in oder an der Oberplatte (8) und in oder an der Felge oder Gleitplatte (7, 9) kapazitiv wirksame Flächen (11) vorgesehen sind und der Sensor ein von der mit dem Abstand zwischen der Felge oder Gleitplatte und der Oberplatte sich ändernden Kapazität abhängiges Signal erzeugt.Rail vehicle suspension according to claim 1, in which the cooperating parts form a capacitive sensor in which capacitively effective surfaces (11) are provided in or on the top plate (8) and in or on the rim or sliding plate (7, 9) and the sensor generated by the changing with the distance between the rim or sliding plate and the top plate capacitance dependent signal.
EP18199213.2A 2017-12-18 2018-10-09 Rail vehicle suspension Active EP3505418B1 (en)

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EP3505418B1 EP3505418B1 (en) 2021-05-26

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Cited By (2)

* Cited by examiner, † Cited by third party
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EP3835613A1 (en) * 2019-12-04 2021-06-16 ContiTech Luftfedersysteme GmbH Rubber spring with an integrated load sensor in a spring system of a vehicle
EP3915812A1 (en) * 2020-05-28 2021-12-01 ContiTech Luftfedersysteme GmbH Air spring assembly

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102022210597A1 (en) 2022-10-06 2024-04-11 Contitech Luftfedersysteme Gmbh Suspension, preferably vehicle suspension, particularly preferably rail vehicle suspension

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JPH08219217A (en) * 1995-02-10 1996-08-27 Bridgestone Corp Air spring
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EP2251562A1 (en) * 2008-02-25 2010-11-17 Bridgestone Corporation Air spring device
DE202011110308U1 (en) * 2011-11-16 2013-09-10 Contitech Luftfedersysteme Gmbh Spring system for a rail vehicle
EP2703245A2 (en) * 2012-08-30 2014-03-05 ContiTech Luftfedersysteme GmbH Pneumatic suspension system for a rail vehicle
DE102015223799A1 (en) * 2015-11-30 2017-06-01 Contitech Luftfedersysteme Gmbh air spring

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08219217A (en) * 1995-02-10 1996-08-27 Bridgestone Corp Air spring
DE29620721U1 (en) * 1995-12-12 1997-04-10 Phoenix Ag, 21079 Hamburg Air spring
DE19642678A1 (en) * 1996-10-16 1998-04-23 Abb Patent Gmbh Rail vehicle
WO2001070526A1 (en) * 2000-03-20 2001-09-27 Intech Thüringen Gmbh Pneumatic shock-absorber
EP1644234B1 (en) 2003-07-15 2007-07-04 Siemens Transportation Systems GmbH & Co. KG Emergency pneumatic spring with centring action
EP2251562A1 (en) * 2008-02-25 2010-11-17 Bridgestone Corporation Air spring device
DE202009015029U1 (en) * 2009-09-30 2010-04-29 Bombardier Transportation Gmbh Spring arrangement for level control in a vehicle
DE202011110308U1 (en) * 2011-11-16 2013-09-10 Contitech Luftfedersysteme Gmbh Spring system for a rail vehicle
EP2703245A2 (en) * 2012-08-30 2014-03-05 ContiTech Luftfedersysteme GmbH Pneumatic suspension system for a rail vehicle
DE102015223799A1 (en) * 2015-11-30 2017-06-01 Contitech Luftfedersysteme Gmbh air spring

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3835613A1 (en) * 2019-12-04 2021-06-16 ContiTech Luftfedersysteme GmbH Rubber spring with an integrated load sensor in a spring system of a vehicle
EP3915812A1 (en) * 2020-05-28 2021-12-01 ContiTech Luftfedersysteme GmbH Air spring assembly

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