EP3749563B1 - Air spring control device - Google Patents

Air spring control device Download PDF

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Publication number
EP3749563B1
EP3749563B1 EP19704256.7A EP19704256A EP3749563B1 EP 3749563 B1 EP3749563 B1 EP 3749563B1 EP 19704256 A EP19704256 A EP 19704256A EP 3749563 B1 EP3749563 B1 EP 3749563B1
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EP
European Patent Office
Prior art keywords
air
air spring
pressure
valve
control device
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EP19704256.7A
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German (de)
French (fr)
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EP3749563A1 (en
Inventor
Christoph HÖRMANN
Harald WERNERT
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Siemens Mobility Austria GmbH
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Siemens Mobility Austria GmbH
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Priority to PL19704256T priority Critical patent/PL3749563T3/en
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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 an air spring control device for a rail vehicle running gear with air suspension.
  • Passenger rail vehicles are often equipped with air suspension, as this offers a high level of driving comfort and level control is easy to implement.
  • a level control is often used in subways in particular, since this means that height differences between a platform and the passenger compartment floor can be avoided when the vehicle is loaded differently.
  • a control valve air suspension valve
  • the air suspension of a rail vehicle comprises further components, in addition to the air bellows themselves and the control valve mentioned, a differential pressure compensation valve, connections for sensors, return valves and often other pneumatic devices are also required.
  • the invention is therefore based on the object of specifying an air spring control device, the installation of which requires significantly less effort and which requires fewer additional components than air spring installations according to the prior art.
  • an air spring control device for a rail vehicle running gear with two air springs which comprises a differential pressure compensation valve, a medium pressure valve and a return valve, two compressed air connections being provided which are set up to connect one air spring each and the respective air spring pressure to one each Connection of the Direct differential pressure compensation valve and the medium pressure valve and wherein a medium pressure that can be generated by the medium pressure valve is fed to a medium pressure connection and wherein one of the air spring pressures is fed to a return valve which is connected at its output to a return valve connection.
  • an air spring control device offers the advantage of low weight compared to conventionally constructed air spring controls and it requires less installation space.
  • the advantages mentioned result in a more cost-effective structure since the components previously required can be omitted and the installation can be carried out more quickly.
  • a first valve is a differential pressure compensation valve which limits the possible pressure difference between the air springs of a chassis. This valve prevents excessive inclination of the car body, for example due to a one-sided fault in an air suspension valve or a one-sided leak. For example, if one of the If both air springs are leaking, the differential pressure equalization valve also completely vents the second air spring of the same chassis, except for a certain residual differential pressure, so that the vehicle can continue to travel on the emergency suspension and without a sharp inclination of the car body.
  • a second valve is a medium pressure valve which forms a mean pressure value from the air pressures in the air springs, which is proportional to the load condition of the vehicle and which is made available to the brake control.
  • a return valve is provided as the third valve, which limits the pressure in the air springs to the existing supply pressure.
  • the air suspension valves alone have to be arranged separately, as they must have a mechanical connection to the chassis in order to determine the momentary deflection and are typically arranged on the underside of the car body.
  • the air spring control device according to the invention can be attached to the underside of the car body and does not excessively restrict the space available for further installations.
  • the air spring control device it is advisable to equip the air spring control device with connections via which access to certain pressure lines in the interior of the air spring control device is made possible. It is particularly advisable to have measuring connections for the air spring pressures or connections for Provide sensors for determining the air spring pressures. In this way, complicated piping and T-pieces to the air springs and sealing points can be dispensed with.
  • the air spring control device is preferably designed as an integrated component in which the required parts are arranged in a housing.
  • the air spring control device is to be equipped with fastening means, for example bores for screw fastening, by means of which it can be detachably fastened to a rail vehicle, preferably a car body.
  • the air spring control device can be configured with different connections.
  • the compressed air connections of the device for receiving adapters are to be implemented, by means of which the connection of lines can take place in accordance with the interfaces commonly used in compressed air lines.
  • lines with threaded connections as well as lines with conical screw connections or similar can be connected in this way.
  • Fig.1 shows an example and schematically a compressed air plan of an air suspension.
  • a compressed air diagram of an air suspension according to the prior art is shown, which comprises a left 9 and a right air spring 10. These air springs 9, 10 are fed from the pneumatic pressure line 13 of the compressed air system 15 on the vehicle body side, an air spring valve 11, 12 being connected in the feed line to the air springs 9, 10.
  • the air suspension valves 11, 12 mechanically determine the respective instantaneous vertical position of the car body in relation to the chassis and control the pressure in the air springs so that a certain level of the car body is achieved regardless of the load.
  • a differential pressure compensation valve 2 is connected between the supply lines to the air springs 9, 10 and reduces the permissible differential pressure between these supply lines and subsequently between the air springs 9, 10.
  • the air suspension shown is equipped with a medium pressure valve 3, which is acted upon by the pressure in the two supply lines to the air springs 9, 10 and from these pressures forms the medium pressure and transmits this via a medium pressure line 14 to the compressed air system 15 on the vehicle body side.
  • This mean pressure is proportional to the current vehicle mass and can be used to regulate the required braking force.
  • a return valve 4 is connected in parallel to the left air suspension valve 11 and prevents the pressure in the air springs 9, 10 from rising above the pressure in the pneumatic pressure line 13.
  • a measuring connection 16 and a pressure transducer 17 are arranged in relation to the air springs 9, 10.
  • FIG. 2 shows an example and schematically an air spring control device.
  • An air spring control device 1 is shown which comprises the essential control functions of an air suspension with the exception of the air suspension valves.
  • a differential pressure compensation valve 2 and a medium pressure valve 3 are arranged in a unit which comprises a connection 7 for a left air spring and a connection 8 for a right air spring, the air pressures applied to these connections 7, 8 being passed to the valves 2, 3 .
  • the output of the medium pressure valve 3 is connected to the medium pressure connection 6 of the air spring control device 1, so that the medium pressure is accessible at this connection 6.
  • a return valve 4 is arranged between a return valve connection 5 and the connection 7 of the left air spring.
  • the configuration shown of an air spring control device 1 forms the minimum functionality and can, for example, be expanded to include measuring connections.
  • Fig. 3 shows an example and schematically a compressed air plan of an air suspension with an air spring control device.
  • An air suspension with two air springs 9, 10 is shown which comprises an air spring control device 1 according to the invention.
  • the pneumatic pressure line 13 of the compressed air system 15 on the vehicle body side is connected to the air springs 9, 10 via air spring valves 11, 12; the other pneumatic control processes are carried out by the valves integrated in the air spring control device 1 accomplished.
  • the air spring control device 1 is connected to the supply lines to the air springs 9, 10, the medium pressure line 13 and the pneumatic pressure line 13.
  • the air spring control device 1 shown has connections for two measuring connections and pressure transducers, so its functionality corresponds exactly to the air suspension Fig.1 , but with significantly less piping complexity.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Vehicle Body Suspensions (AREA)

Description

Technisches GebietTechnical area

Die Erfindung betrifft eine Luftfedersteuerungseinrichtung für ein Schienenfahrzeugfahrwerk mit Luftfederung.The invention relates to an air spring control device for a rail vehicle running gear with air suspension.

Stand der TechnikState of the art

Passagierschienenfahrzeuge sind häufig mit einer Luftfederung ausgestattet, da diese einen hohen Fahrkomfort bietet und eine Niveauregulierung einfach realisierbar ist. Insbesondere bei U-Bahnen ist eine Niveauregulierung häufig eingesetzt, da dadurch Höhenunterschiede zwischen einem Bahnsteig und dem Passagierraumboden bei unterschiedlicher Beladung des Fahrzeugs vermieden werden können. Dabei ist ein Steuerventil (Luftfederventil) so im Fahrwerk angeordnet, dass es das Absinken des Wagenkastens bei Beladung erfasst und daraufhin den Druck in den Luftfedern soweit erhöhen kann, dass ein bestimmtes Niveau des Wagenkastens wiederhergestellt wird. Eine Luftfederung eines Schienenfahrzeugs umfasst weitere Bauteile, neben den Luftfederbälgen selbst und dem genannten Steuerventil sind meist auch ein Differenzdruckausgleichsventil, Anschlüsse für Sensoren, Rückstellventile und oft weitere pneumatische Einrichtungen erforderlich. All diese Komponenten sind mittels Rohren untereinander geeignet zu verbinden, wozu meist weitere Bauteile wie T-Stücke, Reduzierstücke, Einschraubstücke und ähnliche erforderlich sind. Da flexible Pneumatikleitungen möglichst vermieden werden, ist ein beträchtlicher Aufwand für die Konstruktion dieser Luftfederanlage erforderlich, da der Bauraum auch von weiteren mechanischen und elektrischen Komponenten beansprucht wird und auch eine Zugänglichkeit, Wart- und Austauschbarkeit gefordert ist ohne viele weitere Baugruppen abmontieren zu müssen. Aus dem Stand der Technik sind Steuerungen für Luftfedern bekannt, so offenbart die Patentanmeldeschrift EP 3 228 518 A1 eine solche Steuerung, umfassend ein Differenzdruckausgleichsventil mit zwei Anschlüssen zu je einer Luftfeder. Der japanischen Anmeldeschrift JP 2009-249889 A kann auch ein luftgefedertes Schienenfahrzeug mit einem Differenzdruckausgleichsventil für die Luftfedern entnommen werden.Passenger rail vehicles are often equipped with air suspension, as this offers a high level of driving comfort and level control is easy to implement. A level control is often used in subways in particular, since this means that height differences between a platform and the passenger compartment floor can be avoided when the vehicle is loaded differently. A control valve (air suspension valve) is arranged in the chassis in such a way that it detects the lowering of the car body during loading and can then increase the pressure in the air springs to such an extent that a certain level of the car body is restored. The air suspension of a rail vehicle comprises further components, in addition to the air bellows themselves and the control valve mentioned, a differential pressure compensation valve, connections for sensors, return valves and often other pneumatic devices are also required. All of these components can be connected to one another in a suitable manner by means of pipes, which usually requires additional components such as T-pieces, reducers, screw-in pieces and the like. Since flexible pneumatic lines are avoided as much as possible, this is a considerable effort required for the construction of this air suspension system, since the installation space is also required by other mechanical and electrical components and accessibility, maintainability and exchangeability are required without having to dismantle many other assemblies. Controls for air springs are known from the prior art, as disclosed in the patent application EP 3 228 518 A1 Such a control, comprising a differential pressure compensation valve with two connections to one air spring each. The Japanese registration document JP 2009-249889 A an air-sprung rail vehicle with a differential pressure compensation valve for the air springs can also be removed.

Darstellung der ErfindungPresentation of the invention

Der Erfindung liegt daher die Aufgabe zugrunde, eine Luftfedersteuerungseinrichtung anzugeben, für deren Installation ein wesentlich geringerer Aufwand erforderlich ist, und welche weniger zusätzliche Bauteile bedarf als Luftfederinstallationen gemäß des Standes der Technik.The invention is therefore based on the object of specifying an air spring control device, the installation of which requires significantly less effort and which requires fewer additional components than air spring installations according to the prior art.

Die Aufgabe wird durch eine Einrichtung mit den Merkmalen des Anspruchs 1 gelöst. Vorteilhafte Ausgestaltungen sind Gegenstand untergeordneter Ansprüche.The object is achieved by a device with the features of claim 1. Advantageous configurations are the subject of subordinate claims.

Dem Grundgedanken der Erfindung nach wird eine Luftfedersteuerungseinrichtung für ein Schienenfahrzeugfahrwerk mit zwei Luftfedern beschrieben, welche ein Differenzdruckausgleichsventil, ein Mitteldruckventil und ein Rückstellventil umfasst, wobei zwei Druckluftanschlüsse vorgesehen sind, welche zum Anschluß von je einer Luftfeder eingerichtet sind und den jeweiligen Luftfederdruck an einen je einen Anschluß des Differenzdruckausgleichsventils und des Mitteldruckventils leiten und wobei ein durch das Mitteldruckventil erzeugbarer Mitteldruck an einen Mitteldruckanschluß geleitet ist und wobei einer der Luftfederdrücke an ein Rückstellventil geleitet ist, welches an seinem Ausgang mit einem Rückstellventilanschluß verbunden ist.According to the basic idea of the invention, an air spring control device for a rail vehicle running gear with two air springs is described, which comprises a differential pressure compensation valve, a medium pressure valve and a return valve, two compressed air connections being provided which are set up to connect one air spring each and the respective air spring pressure to one each Connection of the Direct differential pressure compensation valve and the medium pressure valve and wherein a medium pressure that can be generated by the medium pressure valve is fed to a medium pressure connection and wherein one of the air spring pressures is fed to a return valve which is connected at its output to a return valve connection.

Dadurch ist der Vorteil erzielbar, alle wesentlichen Bauteile einer Luftfedersteuerung in einem einzelnen Gerät vorsehen zu können, wodurch der Aufwand an Verrohrung und weiteren Bauteilen, wie T-Stücken, Reduzierstücken, Leitungen, Befestigungsmittel, etc. wesentlich reduziert ist. Solcherart kann eine Pneumatikverrohrung schneller ausgeführt werden, wobei auch aufgrund der reduzierten Anzahl an Dichtstellen eine vereinfachte Prüfung der Installation ermöglicht wird.This has the advantage of being able to provide all the essential components of an air spring control in a single device, whereby the expenditure on piping and other components such as T-pieces, reducers, lines, fasteners, etc. is significantly reduced. In this way, pneumatic piping can be carried out more quickly, and the reduced number of sealing points also enables a simplified test of the installation to be carried out.

Des Weiteren bietet eine erfindungsgemäße Luftfedersteuerungseinrichtung den Vorteil niedrigen Gewichts gegenüber herkömmlich aufgebauten Luftfedersteuerungen und sie weist geringeren Bauraumbedarf auf. Die genannten Vorteile bewirken einen kostengünstigeren Aufbau da bisher erforderliche Bauteile entfallen können und der Einbau schneller ausführbar ist.Furthermore, an air spring control device according to the invention offers the advantage of low weight compared to conventionally constructed air spring controls and it requires less installation space. The advantages mentioned result in a more cost-effective structure since the components previously required can be omitted and the installation can be carried out more quickly.

Erfindungsgemäß werden drei Ventile zu einer Einheit zusammengefasst, welche für Luftfederungen an Schienenfahrzeugen allgemein eingesetzt werden. Ein erstes Ventil ist ein Differenzdruckausgleichsventil, welches den möglichen Druckunterschied zwischen den Luftfedern eines Fahrwerks begrenzt. Dieses Ventil verhindert eine übermäßige Schrägstellung des Wagenkastens, beispielsweise durch einen einseitigen Fehler eines Luftfederventils oder einer einseitigen Undichtigkeit. Wird beispielsweise eine der beiden Luftfedern undicht, so entlüftet das Differenzdruckausgleichsventil auch die zweite Luftfeder desselben Fahrwerks bis auf einen bestimmten Restdifferenzdruck vollständig, sodass eine Weiterfahrt des Fahrzeugs auf der Notfederung und ohne starke Schrägstellung des Wagenkastens erfolgen kann.According to the invention, three valves are combined into a unit, which are generally used for air suspension on rail vehicles. A first valve is a differential pressure compensation valve which limits the possible pressure difference between the air springs of a chassis. This valve prevents excessive inclination of the car body, for example due to a one-sided fault in an air suspension valve or a one-sided leak. For example, if one of the If both air springs are leaking, the differential pressure equalization valve also completely vents the second air spring of the same chassis, except for a certain residual differential pressure, so that the vehicle can continue to travel on the emergency suspension and without a sharp inclination of the car body.

Ein zweites Ventil ist ein Mitteldruckventil, welches aus den Luftdrücken in den Luftfedern einen Druckmittelwert bildet, welcher dem Beladungszustand des Fahrzeugs proportional ist und welcher der Bremssteuerung zur Verfügung gestellt wird. Als drittes Ventil ist ein Rückstellventil vorgesehen, welches den Druck in den Luftfedern auf den vorhandenen Versorgungsdruck limitiert. Dadurch kann auch bei druckloser Versorgungsleitung, beispielsweise im Wartungsfall, der Druck in den Luftfedern abgelassen werden, ohne das dafür Auslaßventile vorzusehen sind, bzw. die Zuleitungen zu den Luftfedern geöffnet werden müssen.A second valve is a medium pressure valve which forms a mean pressure value from the air pressures in the air springs, which is proportional to the load condition of the vehicle and which is made available to the brake control. A return valve is provided as the third valve, which limits the pressure in the air springs to the existing supply pressure. As a result, even when the supply line is depressurized, for example during maintenance, the pressure in the air springs can be released without having to provide outlet valves for this or the supply lines to the air springs having to be opened.

Alleine die Luftfederventile sind getrennt anzuordnen, da diese zur Bestimmung der momentanen Einfederung eine mechanische Verbindung zu dem Fahrwerk aufweisen müssen und typischerweise an der Unterseite des Wagenkastens angeordnet sind. Die erfindungsgemäße Luftfedersteuerungseinrichtung kann an der Unterseite des Wagenkastens befestigt werden und engt den zur Verfügung stehenden Bauraum für weitere Installationen nicht übermäßig ein.The air suspension valves alone have to be arranged separately, as they must have a mechanical connection to the chassis in order to determine the momentary deflection and are typically arranged on the underside of the car body. The air spring control device according to the invention can be attached to the underside of the car body and does not excessively restrict the space available for further installations.

In weiterer Fortbildung der Erfindung ist es empfehlenswert, die Luftfedersteuerungseinrichtung mit Anschlüssen auszustatten, über welche ein Zugriff auf bestimmte Druckleitungen im Inneren der Luftfedersteuerungseinrichtung ermöglicht wird. Besonders empfehlenswert ist es dabei, Meßanschlüsse für die Luftfederdrücke bzw. Anschlüsse für Sensoren zur Bestimmung der Luftfederdrücke vorzusehen. Solcherart können komplizierte Verrohrungen und T-Stücke zu den Luftfedern sowie Dichtstellen entfallen.In a further development of the invention, it is advisable to equip the air spring control device with connections via which access to certain pressure lines in the interior of the air spring control device is made possible. It is particularly advisable to have measuring connections for the air spring pressures or connections for Provide sensors for determining the air spring pressures. In this way, complicated piping and T-pieces to the air springs and sealing points can be dispensed with.

Die erfindungsgemäße Luftfedersteuerungseinrichtung ist vorzugsweise als integriertes Bauteil auszuführen, bei welchem in einem Gehäuse die erforderlichen Teile angeordnet sind. Die Luftfedersteuerungseinrichtung ist dabei mit Befestigungsmitteln auszustatten, beispielsweise Bohrungen für eine Schraubbefestigung, mittels welcher sie lösbar an einem Schienenfahrzeug, vorzugsweise einem Wagenkasten befestigbar ist.The air spring control device according to the invention is preferably designed as an integrated component in which the required parts are arranged in a housing. The air spring control device is to be equipped with fastening means, for example bores for screw fastening, by means of which it can be detachably fastened to a rail vehicle, preferably a car body.

In weiterer Fortbildung der Erfindung kann die Luftfedersteuerungseinrichtung mit unterschiedlichen Anschlüssen konfiguriert werden. Dazu sind die Druckluftanschlüsse der Einrichtung zur Aufnahme von Adaptoren auszuführen, mittels welcher der Anschluß von Leitungen gemäß der bei Druckluftleitungen gebräuchlichen Schnittstellen erfolgen kann. Beispielsweise können dadurch Leitungen mit Gewindeanschlüssen ebenso wie Leitungen mit Dichtkegelverschraubungen oder ähnlichen angebunden werden.In a further development of the invention, the air spring control device can be configured with different connections. For this purpose, the compressed air connections of the device for receiving adapters are to be implemented, by means of which the connection of lines can take place in accordance with the interfaces commonly used in compressed air lines. For example, lines with threaded connections as well as lines with conical screw connections or similar can be connected in this way.

Kurzbeschreibung der ZeichnungenBrief description of the drawings

Es zeigen beispielhaft:

  • Fig.1 Druckluftplan einer Luftfederung.
  • Fig.2 Luftfedersteuerungseinrichtung.
  • Fig.3 Druckluftplan einer Luftfederung mit einer Luftfedersteuerungseinrichtung.
It shows by way of example:
  • Fig.1 Compressed air plan of an air suspension.
  • Fig. 2 Air spring control device.
  • Fig. 3 Compressed air plan of an air suspension with an air spring control device.

Ausführung der ErfindungImplementation of the invention

Fig.1 zeigt beispielhaft und schematisch einen Druckluftplan einer Luftfederung. Es ist ein Druckluftplan einer Luftfederung gemäß dem Stand der Technik dargestellt, welche eine linke 9 und eine rechte Luftfeder 10 umfasst. Diese Luftfedern 9, 10 werden aus der Pneumatikdruckleitung 13 der wagenkastenseitigen Druckluftanlage 15 gespeist, wobei in der Zuleitung zu den Luftfedern 9, 10 jeweils ein Luftfederventil 11, 12 geschaltet ist. Die Luftfederventile 11, 12 ermitteln mechanisch die jeweilige momentane vertikale Lage des Wagenkastens zu dem Fahrgestell und steuern den Druck in den Luftfedern so, dass ein bestimmtes Niveau des Wagenkasten unabhängig von der Beladung erzielt wird. Ein Differenzdruckausgleichsventil 2 ist zwischen den Zuleitungen zu den Luftfedern 9, 10 geschaltet und reduziert den zulässigen Differenzdruck zwischen diesen Zuleitungen und in weiterer Folge zwischen den Luftfedern 9, 10. Dadurch wird eine Schiefstellung des Wagenkastens verhindert. Weiters ist die dargestellte Luftfederung mit einem Mitteldruckventil 3 ausgestattet, welches mit dem Druck in den beiden Zuleitungen zu den Luftfedern 9, 10 beaufschlagt wird und aus diesen Drücken den mittleren Druck bildet und diesen über eine Mitteldruckleitung 14 an die wagenkastenseitige Druckluftanlage 15 übermittelt. Dieser mittlere Druck ist zu der aktuellen Fahrzeugmasse proportional und kann zur Regelung der erforderlichen Bremskraft herangezogen werden. Ein Rückstellventil 4 ist dem linken Luftfederventil 11 parallelgeschaltet und verhindert einen Anstieg des Drucks in den Luftfedern 9, 10 über den Druck in der Pneumatikdruckleitung 13. Zusätzlich sind in den Zuleitungen zu den Luftfedern 9, 10 jeweils ein Meßanschluß 16 und ein Druckgeber 17 angeordnet. Fig.1 shows an example and schematically a compressed air plan of an air suspension. A compressed air diagram of an air suspension according to the prior art is shown, which comprises a left 9 and a right air spring 10. These air springs 9, 10 are fed from the pneumatic pressure line 13 of the compressed air system 15 on the vehicle body side, an air spring valve 11, 12 being connected in the feed line to the air springs 9, 10. The air suspension valves 11, 12 mechanically determine the respective instantaneous vertical position of the car body in relation to the chassis and control the pressure in the air springs so that a certain level of the car body is achieved regardless of the load. A differential pressure compensation valve 2 is connected between the supply lines to the air springs 9, 10 and reduces the permissible differential pressure between these supply lines and subsequently between the air springs 9, 10. This prevents the car body from being tilted. Furthermore, the air suspension shown is equipped with a medium pressure valve 3, which is acted upon by the pressure in the two supply lines to the air springs 9, 10 and from these pressures forms the medium pressure and transmits this via a medium pressure line 14 to the compressed air system 15 on the vehicle body side. This mean pressure is proportional to the current vehicle mass and can be used to regulate the required braking force. A return valve 4 is connected in parallel to the left air suspension valve 11 and prevents the pressure in the air springs 9, 10 from rising above the pressure in the pneumatic pressure line 13. In addition, there are supply lines A measuring connection 16 and a pressure transducer 17 are arranged in relation to the air springs 9, 10.

Fig.2 zeigt beispielhaft und schematisch eine Luftfedersteuerungseinrichtung. Es ist eine Luftfedersteuerungseinrichtung 1 dargestellt, welche die wesentlichen Steuerfunktionen einer Luftfederung mit Ausnahme der Luftfederventile umfasst. Dabei sind ein Differenzdruckausgleichsventil 2 und ein Mitteldruckventil 3 in einer Einheit angeordnet, welche einen Anschluß 7 für eine linke Luftfeder und einen Anschluß 8 für eine rechte Luftfeder umfasst, wobei die an diesen Anschlüssen 7, 8 anliegenden Luftdrücke an die Ventile 2, 3 geleitet werden. Der Ausgang des Mitteldruckventils 3 ist mit dem Mitteldruckanschluß 6 der Luftfedersteuerungseinrichtung 1 verbunden, sodass den Mitteldruck an diesem Anschluß 6 zugänglich ist. Ein Rückstellventil 4 ist zwischen einem Rückstellventilanschluß 5 und dem Anschluß 7 der linken Luftfeder angeordnet. Die gezeigte Konfiguration einer Luftfedersteuerungseinrichtung 1 bildet das Minimum an Funktionalität und kann beispielsweise um Meßanschlüsse erweitert werden. Fig. 2 shows an example and schematically an air spring control device. An air spring control device 1 is shown which comprises the essential control functions of an air suspension with the exception of the air suspension valves. A differential pressure compensation valve 2 and a medium pressure valve 3 are arranged in a unit which comprises a connection 7 for a left air spring and a connection 8 for a right air spring, the air pressures applied to these connections 7, 8 being passed to the valves 2, 3 . The output of the medium pressure valve 3 is connected to the medium pressure connection 6 of the air spring control device 1, so that the medium pressure is accessible at this connection 6. A return valve 4 is arranged between a return valve connection 5 and the connection 7 of the left air spring. The configuration shown of an air spring control device 1 forms the minimum functionality and can, for example, be expanded to include measuring connections.

Fig.3 zeigt beispielhaft und schematisch einen Druckluftplan einer Luftfederung mit einer Luftfedersteuerungseinrichtung. Es ist eine Luftfederung mit zwei Luftfedern 9, 10 gezeigt, welche eine erfindungsgemäße Luftfedersteuerungseinrichtung 1 umfasst. Dadurch ist der Aufwand an Verrohrungen wesentlich reduziert. Die Pneumatikdruckleitung 13 der wagenkastenseitigen Druckluftanlage 15 ist dabei über Luftfederventile 11, 12 mit den Luftfedern 9, 10 verbunden, die weiteren pneumatischen Steuervorgänge werden durch die in der Luftfedersteuerungseinrichtung 1 integrierten Ventile durchgeführt. Dazu ist die Luftfedersteuerungseinrichtung 1 mit den Zuleitungen zu den Luftfedern 9, 10, der Mitteldruckleitung 13 und der Pneumatikdruckleitung 13 verbunden. Des Weiteren weist die gezeigte Luftfedersteuerungseinrichtung 1 Anschlüsse für jeweils zwei Meßanschlüsse und Druckgeber auf, ihre Funktionalität entspricht somit exakt der Luftfederung aus Fig.1, jedoch mit deutlicher geringerer Komplexität der Verrohrung. Fig. 3 shows an example and schematically a compressed air plan of an air suspension with an air spring control device. An air suspension with two air springs 9, 10 is shown which comprises an air spring control device 1 according to the invention. This significantly reduces the amount of piping required. The pneumatic pressure line 13 of the compressed air system 15 on the vehicle body side is connected to the air springs 9, 10 via air spring valves 11, 12; the other pneumatic control processes are carried out by the valves integrated in the air spring control device 1 accomplished. For this purpose, the air spring control device 1 is connected to the supply lines to the air springs 9, 10, the medium pressure line 13 and the pneumatic pressure line 13. Furthermore, the air spring control device 1 shown has connections for two measuring connections and pressure transducers, so its functionality corresponds exactly to the air suspension Fig.1 , but with significantly less piping complexity.

Liste der BezeichnungenList of names

11
LuftfedersteuerungseinrichtungAir spring control device
22
DifferenzdruckausgleichsventilDifferential pressure compensation valve
33
MitteldruckventilMedium pressure valve
44th
RückstellventilReturn valve
55
Anschluß RückstellventilReturn valve connection
66th
Anschluß MitteldruckConnection medium pressure
77th
Anschluß linke LuftfederLeft air spring connection
88th
Anschluß rechte LuftfederRight air spring connection
99
Linke LuftfederLeft air spring
1010
Rechte LuftfederRight air spring
1111th
Linkes LuftfederventilLeft air suspension valve
1212th
Rechtes LuftfederventilRight air suspension valve
1313th
PneumatikdruckleitungPneumatic pressure line
1414th
MitteldruckleitungMedium pressure line
1515th
Wagenkastenseitige DruckluftanlageCompressed air system on the vehicle body
1616
MeßanschlußMeasuring connection
1717th
DruckgeberPressure transducer

Claims (3)

  1. Air spring control device (1) for a rail vehicle bogie with two air springs,
    comprising a differential pressure compensation valve (2), wherein two compressed-air ports (7,8) are provided and are designed for connection to one air spring (9, 10) each and conduct the respective air spring pressure to one port each of the differential pressure compensation valve (2),
    characterised in that
    the air spring control device (1) comprises a medium pressure value (3) and a return valve (4), wherein the compressed-air ports (7, 8) conduct the respective air spring pressure to a port of the medium-pressure valve (3) in each case, wherein a medium pressure which can be generated by the medium-pressure valve (3) is conducted to a medium-pressure port (6) and wherein one of the air spring pressures is conducted to a return valve (4), which is connected at its output to a return valve port (5).
  2. Air spring control device (1) according to claim 1,
    characterised in that the two air spring pressures are guided to in each case at least one further port.
  3. Air spring control device (1) according to one of claims 1 or 2,
    characterised in that the ports (5, 6, 7, 8) are embodied to receive an adapter for linking compressed-air lines.
EP19704256.7A 2018-02-08 2019-02-01 Air spring control device Active EP3749563B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL19704256T PL3749563T3 (en) 2018-02-08 2019-02-01 Air spring control device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ATA50117/2018A AT520634B1 (en) 2018-02-08 2018-02-08 Air spring control means
PCT/EP2019/052486 WO2019154726A1 (en) 2018-02-08 2019-02-01 Air spring control device

Publications (2)

Publication Number Publication Date
EP3749563A1 EP3749563A1 (en) 2020-12-16
EP3749563B1 true EP3749563B1 (en) 2021-12-29

Family

ID=65363263

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Application Number Title Priority Date Filing Date
EP19704256.7A Active EP3749563B1 (en) 2018-02-08 2019-02-01 Air spring control device

Country Status (6)

Country Link
EP (1) EP3749563B1 (en)
CN (1) CN214001655U (en)
AT (1) AT520634B1 (en)
ES (1) ES2904640T3 (en)
PL (1) PL3749563T3 (en)
WO (1) WO2019154726A1 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110511770B (en) * 2019-09-26 2023-12-12 葛霖 Raw gas waste heat recovery heat exchanger riser and control method thereof

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2457008A1 (en) * 1974-12-03 1976-06-10 Wabco Westinghouse Gmbh COMPRESSED AIR BRAKE SYSTEM WITH AUTOMATIC LOAD-DEPENDENT CONTROL
JP4660267B2 (en) * 2005-04-28 2011-03-30 北海道旅客鉄道株式会社 Railway vehicle body tilt control device
JP5222611B2 (en) * 2008-04-04 2013-06-26 日本車輌製造株式会社 Rail transportation vehicle
DE102008035563B4 (en) * 2008-07-30 2016-01-07 Siemens Aktiengesellschaft Air suspension system for a rail vehicle
IT1402175B1 (en) * 2010-09-03 2013-08-28 Ansaldobreda Spa RAILWAY CAR
CN202783173U (en) * 2012-07-03 2013-03-13 长春轨道客车股份有限公司 Load signal air channel control box
EP3228518B1 (en) * 2014-12-05 2021-02-03 Nippon Steel Corporation Railway vehicle
CN205661442U (en) * 2016-06-13 2016-10-26 张海洋 Average gas circuit controlling means of pressure differential suitable for railway vehicle

Also Published As

Publication number Publication date
WO2019154726A1 (en) 2019-08-15
AT520634B1 (en) 2019-06-15
PL3749563T3 (en) 2022-04-19
ES2904640T3 (en) 2022-04-05
AT520634A4 (en) 2019-06-15
CN214001655U (en) 2021-08-20
EP3749563A1 (en) 2020-12-16

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