EP3505418B1 - Rail vehicle suspension - Google Patents

Rail vehicle suspension Download PDF

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Publication number
EP3505418B1
EP3505418B1 EP18199213.2A EP18199213A EP3505418B1 EP 3505418 B1 EP3505418 B1 EP 3505418B1 EP 18199213 A EP18199213 A EP 18199213A EP 3505418 B1 EP3505418 B1 EP 3505418B1
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EP
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Prior art keywords
rim
sliding plate
upper plate
rail vehicle
plate
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EP18199213.2A
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German (de)
French (fr)
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EP3505418A1 (en
Inventor
Harald Kranz
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ContiTech Luftfedersysteme GmbH
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ContiTech Luftfedersysteme GmbH
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Publication of EP3505418A1 publication Critical patent/EP3505418A1/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B61RAILWAYS
    • B61FRAIL 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
    • B61F5/00Constructional 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
    • B61F5/02Arrangements permitting limited transverse relative movements between vehicle underframe or bolster and bogie; Connections between underframes and bogies
    • B61F5/04Bolster supports or mountings
    • B61F5/10Bolster supports or mountings incorporating fluid springs

Definitions

  • the invention relates to a rail vehicle suspension with an air spring, arranged between the 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 top plate opposite the rim, the rim having a sliding plate is provided and the rim and top plate are arranged in such a way that, in the event of a failure of the air spring, the sliding plate and the top plate lie against one another or on top of one another and the body is supported on the subframe.
  • Such rail vehicle suspensions usually contain an air spring as the main spring and a rubber spring or block spring as an emergency spring.
  • the main spring and emergency spring are arranged between the car body and subframe of the vehicle so that if the main spring fails, the body is supported on the chassis by the emergency spring and the support is provided via opposing, interacting support and sliding surfaces or sliding plates / sliding elements on the body and chassis. These sliding plates then ensure reduced friction and problem-free support in emergency operation.
  • the EP 1 644 234 B1 a centering emergency spring support for an air spring, in which the bellows rims connected via the air spring have guide grooves which are intended to prevent a lateral displacement of the car body in relation to the chassis when the car body rests on the emergency spring / additional spring.
  • the mutually inclined surfaces of the guide grooves and their counterparts are provided with sliding elements in order to reduce the friction when the car body is rotated or transversely displaced relative to the chassis.
  • measuring devices or sensors are known in the prior art, which as a rule are arranged within the air spring, that is to say within the air spring bellows between the rim and the top plate of such a suspension. Such measuring systems therefore require additional installation space and are also problematic with regard to their integration and cabling in the overall system.
  • the object was to detect the distance between the top plate and the rim or sliding plate with the aid of a sensor system that does not place any special requirements on the available installation space, that allows simple connection options from the outside, that can reliably detect loading conditions and emergency situations, which is not damaged by direct contact between the top plate and sliding plate and which is not influenced by environmental influences such as temperature or humidity.
  • the rim or sliding plate on the one hand and the top plate on the other form interacting parts of a sensor or sensor system that generate an electrical signal depending on the distance between the rim or sliding plate and the top plate.
  • the air gap between the rim or sliding plate and top plate which is proportional to the load, can thus be measured permanently. B. in case of overload, can be detected.
  • This warning system is therefore integrated in the air spring and works without lead-throughs for cables or data lines, since both the top plate and the rim or sliding plate are accessible from the outside.
  • the interacting parts form an inductive sensor, in which the top plate preferably has a coil and the rim or sliding plate has a ferritic material and the sensor has one that changes with the distance between the rim or sliding plate and the top plate Inductance-dependent signal generated.
  • the interacting parts form a capacitive sensor in which capacitive surfaces are provided in or on the top plate and in or on the rim or sliding plate and the sensor is one of the one with the distance between the rim or sliding plate and the top plate generates a changing capacitance-dependent signal.
  • this creates a capacitor made up of two electrically charged surfaces that are separated by a dielectric.
  • the top plate of the air spring forms the one capacitor surface and the rim or the sliding plate or the sliding plate carrier forms the opposite capacitor surface.
  • a capacitance measurement can now be used with a suitable Calibration can be used to determine the distance between the two parts in a simple and reliable way.
  • Fig. 1 shows in principle the front part of a rail-bound short-distance motor vehicle 1 with a subframe or chassis 2, which is connected to the body 4 of the motor vehicle 1 via a rail vehicle air suspension 3.
  • Fig. 2 shows the rail vehicle suspension 3 with a so-called “half-bellows” bellows air spring 5 with an air connection 6 in somewhat more detail.
  • the air suspension 3 has a rim 7 and a top plate 8 opposite the rim, the rim 7 being provided with an annular sliding plate 9.
  • the sliding plate 9 is connected to the rim 7 via a sliding plate receptacle 9b.
  • the rim 7 and top plate 8 are arranged in such a way that, if the air spring 5 fails, the sliding plate 9 and the top plate 8 lie against one another or on top of one another and the body 4 is thus supported on the subframe 2
  • a rubber-metal spring is arranged as an additional spring 10 within the rail vehicle air suspension 3.
  • the interacting parts form a capacitive sensor, in which capacitively effective surfaces 11 are provided on the top plate 8 and in or on the sliding plate 9.
  • the sensor thus made up of top plate and sliding plate, generates an electrical signal that is dependent on the capacitance, which changes with the distance between the sliding plate and the top plate, and which is fed via lines 12 to a further 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)

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 the 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 top plate opposite the rim, the rim having a sliding plate is provided and the rim and top plate are arranged in such a way that, in the event of a failure of the air spring, the sliding plate and the top plate lie against one another or on top of one another and 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 contain an air spring as the main spring and a rubber spring or block spring as an emergency spring. The main spring and emergency spring are arranged between the car body and subframe of the vehicle so that if the main spring fails, the body is supported on the chassis by the emergency spring and the support is provided via opposing, interacting support and sliding surfaces or sliding plates / sliding elements on the body and chassis. These sliding plates then ensure reduced friction and problem-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.To this end, the EP 1 644 234 B1 a centering emergency spring support for an air spring, in which the bellows rims connected via the air spring have guide grooves which are intended to prevent a lateral displacement of the car body in relation to the chassis when the car body rests on the emergency spring / additional spring. The mutually inclined surfaces of the guide grooves and their counterparts are provided with sliding elements in order to reduce the friction when the car body is rotated or transversely displaced 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 the case of such undercarriages equipped with emergency running systems, it is desirable in practice to detect the beginning of a loss of air in a suspension system as early as possible. For this purpose, measuring devices or sensors are known in the prior art, which as a rule are arranged within the air spring, that is to say within the air spring bellows between the rim and the top plate of such a suspension. Such measuring systems therefore require additional installation space and are also problematic with regard to 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. Solche ein System zeigt beispielsweise auch die JP H 08 219 217 A , bei der ein Sensor in oder an der Innenseite der Oberplatte einer Luftfederung montiert und mit in einer Deckelausnehmung geführten Kabeln versehen ist.In the normal operating state, there is an air gap between the top plate of the air suspension and the "rim" system part underneath, which in rail vehicle air springs generally has a slide plate holder with a slide plate. If there is a higher pressure loss or if the load is too strong or significant, or there may also be direct contact between the top plate and the sliding plate, so that the air gap is no longer present. With such a direct contact between the top plate and the rim or sliding plate, sensor components located within the air spring can be damaged or destroyed. Such a system also shows, for example, the JP H 08 219 217 A , in which a sensor is mounted in or on the inside of the top plate of an air suspension and is provided with cables guided in a cover recess.

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, the object was to detect the distance between the top plate and the rim or sliding plate with the aid of a sensor system that does not place any special requirements on the available installation space, that allows simple connection options from the outside, that can reliably detect loading conditions and emergency situations, which is not damaged by direct contact between the top plate and sliding plate and which is not influenced by environmental influences such as temperature or humidity.

Gelöst wird diese Aufgabe durch die Merkmale der unabhängigen Ansprüche 1 und 2.This object is achieved by the features of the independent claims 1 and 2.

Dabei bilden 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.The rim or sliding plate on the one hand and the top plate on the other form interacting parts of a sensor or sensor system that generate an electrical signal depending on the distance between the rim or sliding plate and the top plate. This means that the components already present in the air suspension are used as sensor components, so that additional built-in components that are prominently formed within the suspension are completely unnecessary.

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 air gap between the rim or sliding plate and top plate, which is proportional to the load, can thus be measured permanently. B. in case of overload, can be detected. This warning system is therefore integrated in the air spring and works without lead-throughs for cables or data lines, since both the top plate and the rim or sliding plate are accessible from the outside.

Dabei besteht eine Lösung 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.One solution here is that the interacting parts form an inductive sensor, in which the top plate preferably has a coil and the rim or sliding plate has a ferritic material and the sensor has one that changes with the distance between the rim or sliding plate and the top plate Inductance-dependent signal generated. This results in a sensor system that can be implemented with simple components and that allows the distance to be measured permanently and without great effort.

Eine alternative Lösung 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.An alternative solution is that the interacting parts form a capacitive sensor in which capacitive surfaces are provided in or on the top plate and in or on the rim or sliding plate and the sensor is one of the one with the distance between the rim or sliding plate and the top plate generates a changing capacitance-dependent signal. In principle, this creates a capacitor made up of two electrically charged surfaces that are separated by a dielectric. Here the top plate of the air spring forms the one capacitor surface and the rim or the sliding plate or the sliding plate carrier forms the opposite capacitor surface. A capacitance measurement can now be used with a suitable Calibration can be used to determine the distance between the two parts in a simple and reliable way.

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.l, bei der Gleitplatte und Oberplatte einen kapazitiven Sensor bilden.
The invention is to be explained in more detail on the basis of an exemplary embodiment. Show it
Fig. 1
in principle the front part of a rail-bound short-distance motor car,
Fig. 2
the inventive rail vehicle suspension of the short-haul railcar according to Fig.l, in which the 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 short-distance motor vehicle 1 with a subframe or chassis 2, which is connected to the body 4 of the motor vehicle 1 via a rail vehicle air suspension 3.

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 “half-bellows” bellows air spring 5 with an air connection 6 in somewhat more detail. The air suspension 3 has a rim 7 and a top plate 8 opposite the rim, the rim 7 being provided with an annular sliding plate 9. The sliding plate 9 is connected to the rim 7 via a sliding plate receptacle 9b. The rim 7 and top plate 8 are arranged in such a way that, if the air spring 5 fails, the sliding plate 9 and the top plate 8 lie against one another or on top of one another and the body 4 is thus supported on the subframe 2

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

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.In the case of the Fig. 2 The illustrated embodiment of a rail vehicle suspension, the interacting parts form a capacitive sensor, in which capacitively effective surfaces 11 are provided on the top plate 8 and in or on the sliding plate 9.

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 sensor, thus made up of top plate and sliding plate, generates an electrical signal that is dependent on the capacitance, which changes with the distance between the sliding plate and the top plate, and which is fed via lines 12 to a further monitoring, display or control unit for the air supply.

BezugszeichenlisteList of reference symbols (Teil der Beschreibung)(Part of the description)

11
KurzstreckentriebwagenShort-haul railcars
22
Fahrgestell, FahrschemelChassis, subframe
33
SchienenfahrzeugfederungRail vehicle suspension
44th
Karosseriebody
55
BalgluftfederBellows air spring
66th
LuftanschlussAir connection
77th
Felgerim
88th
OberplatteTop plate
99
GleitplatteSliding plate
9b9b
GleitplattenaufnahmeSliding plate holder
1010
ZusatzfederAdditional spring
1111
Kapazitiv wirksame FlächeCapacitive effective area
1212th
Leitungmanagement

Claims (2)

  1. Rail vehicle suspension (3) with a pneumatic spring (5), arranged between a sprung mass and an unsprung mass, specifically between the body or superstructure (4) and the chassis or subframe (2) of a rail vehicle (1), wherein the rail vehicle suspension (3) has a rim (7) and an upper plate (8) opposite the rim, wherein the rim (7) is provided with a sliding plate (9) and the rim (7) and the upper plate (8) are arranged in such a way that, in the event of a failure of the pneumatic spring (5), the sliding plate (9) and the upper plate (8) lie against one another or one on top of the other, and so the body (4) is supported on the subframe (2), wherein the rim or sliding plate (7, 9) on the one hand and the upper plate (8) on the other hand form interacting parts (11) of a sensor or sensor system, which, dependent on the distance between the rim or sliding plate (7, 9) and the upper plate (8), generate an electrical signal, characterized in that the interacting parts form an inductive sensor, in which preferably the upper plate (8) comprises a coil and the rim or sliding plate (7, 9) comprises a ferritic material and the sensor generates a signal dependent on the inductance, which changes with the distance between the rim or sliding plate and the upper plate.
  2. Rail vehicle suspension (3) with a pneumatic spring (5), arranged between a sprung mass and an unsprung mass, specifically between the body or superstructure (4) and the chassis or subframe (2) of a rail vehicle (1), wherein the rail vehicle suspension (3) has a rim (7) and an upper plate (8) opposite the rim, wherein the rim (7) is provided with a sliding plate (9) and the rim (7) and the upper plate (8) are arranged in such a way that, in the event of a failure of the pneumatic spring (5), the sliding plate (9) and the upper plate (8) lie against one another or one on top of the other, and so the body (4) is supported on the subframe (2), wherein the rim or sliding plate (7, 9) on the one hand and the upper plate (8) on the other hand form interacting parts (11) of a sensor or sensor system, which, dependent on the distance between the rim or sliding plate (7, 9) and the upper plate (8), generate an electrical signal, characterized in that the interacting parts form a capacitive sensor, in which capacitively acting areas (11) are provided in or on the upper plate (8) and in or on the rim or sliding plate (7, 9) and the sensor generates a signal dependent on the capacitance, which changes with the distance between the rim or sliding plate and the upper plate.
EP18199213.2A 2017-12-18 2018-10-09 Rail vehicle suspension Active EP3505418B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102017223000.2A DE102017223000A1 (en) 2017-12-18 2017-12-18 Rail vehicle suspension

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Publication Number Publication Date
EP3505418A1 EP3505418A1 (en) 2019-07-03
EP3505418B1 true EP3505418B1 (en) 2021-05-26

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DE102022210597A1 (en) 2022-10-06 2024-04-11 Contitech Luftfedersysteme Gmbh Suspension, preferably vehicle suspension, particularly preferably rail vehicle suspension

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Publication number Priority date Publication date Assignee Title
DE102019218852A1 (en) * 2019-12-04 2021-06-10 Contitech Luftfedersysteme Gmbh Rubber spring with an integrated load sensor in a suspension system of a vehicle
DE102020206700A1 (en) * 2020-05-28 2021-12-02 Contitech Luftfedersysteme Gmbh Air spring arrangement

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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
CN1291854C (en) * 2000-03-20 2006-12-27 肯迪泰克空气弹簧有限公司 Pneumatic shock-absorber with a height sensor
AT501224A1 (en) 2003-07-15 2006-07-15 Siemens Sgp Verkehrstech Gmbh CENTERING EMERGENCY SUPPORT
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DE102011055399A1 (en) * 2011-11-16 2013-05-16 Contitech Luftfedersysteme Gmbh Spring system for a rail vehicle
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* 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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EP3505418A1 (en) 2019-07-03

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