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EP2616619A1 - Door controller for vehicles and method for actuating a cylinder of a vehicle door - Google Patents

Door controller for vehicles and method for actuating a cylinder of a vehicle door

Info

Publication number
EP2616619A1
EP2616619A1 EP11724972.2A EP11724972A EP2616619A1 EP 2616619 A1 EP2616619 A1 EP 2616619A1 EP 11724972 A EP11724972 A EP 11724972A EP 2616619 A1 EP2616619 A1 EP 2616619A1
Authority
EP
European Patent Office
Prior art keywords
cylinder
door control
cylinder chamber
compressed air
compressor
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP11724972.2A
Other languages
German (de)
French (fr)
Other versions
EP2616619B1 (en
Inventor
Ingo Hellbusch
Uwe Stabenow
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ZF CV Systems Hannover GmbH
Original Assignee
Wabco GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Wabco GmbH filed Critical Wabco GmbH
Publication of EP2616619A1 publication Critical patent/EP2616619A1/en
Application granted granted Critical
Publication of EP2616619B1 publication Critical patent/EP2616619B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F15/00—Power-operated mechanisms for wings
    • E05F15/50—Power-operated mechanisms for wings using fluid-pressure actuators
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2900/00—Application of doors, windows, wings or fittings thereof
    • E05Y2900/50—Application of doors, windows, wings or fittings thereof for vehicles
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2900/00—Application of doors, windows, wings or fittings thereof
    • E05Y2900/50—Application of doors, windows, wings or fittings thereof for vehicles
    • E05Y2900/53—Type of wing
    • E05Y2900/531—Doors

Definitions

  • the invention relates to a pneumatic door control for vehicles with a compressor, an air dryer, a door control valve and at least one actuatable with compressed air cylinder.
  • the invention further relates to a method for actuating a cylinder of a vehicle door, in which a cylinder piston of the cylinder can assume at least a first functional position and a second functional position.
  • a pneumatic vehicle door control with a double-acting cylinder connected to the vehicle door, whose two cylinder chambers are connected via valves to a compressor, is known from DE 10 2008 011 315 A1. When venting the cylinder, the compressed air is released into the atmosphere.
  • the compressed air generated by a compressor in an air dryer moisture is removed because dry compressed air has a higher quality, which, among other things, has a positive effect on the life of the pneumatic system.
  • Such an air dryer must be dewatered cyclically manually and / or be regenerated by additionally supplied heat. In case of failure of the regeneration facilities or in case of suspension or misuse of maintenance there is a risk of icing of the system.
  • the invention has for its object to provide a way to operate a door control among other things as energy-saving and maintenance-free.
  • a device in which the cylinder via the door control valve for filling via a first flow path with an air dryer and a compressor and for emptying via a second flow path to the air dryer and the atmosphere is connectable.
  • the air dryer when filling the cylinder in the drying operation and emptying of the cylinder in the regeneration mode is operable.
  • the air dryer is traversed in the drying operation of the flowing into the cylinder and in the regeneration mode of the effluent from the cylinder air. This makes it possible that at each door operation, so at each cylinder clearance, the venting air flows through the air dryer, where it absorbs moisture and releases it to the atmosphere.
  • the air dryer is thus regenerated with each cylinder play, whereby maintenance intervals can be reduced to a minimum or completely eliminated, since it no longer has to be drained manually. Also, there is no longer the risk of icing of the pneumatic system.
  • first and the second flow path are decoupled from one another by means of a cylinder-side and a memory-side non-return valve. This ensures that the air duct in the door control, in particular the flow through the first flow path and the second flow path, takes place correctly. It is advantageous that in the first flow path between the air dryer and the door control valve downstream of the memory-side non-return valve, a pressure medium accumulator is provided.
  • the accumulator serves to receive compressed air from the compressor and to deliver compressed air to the cylinder. The compressed air taken up by the accumulator has previously been dried in the air dryer operated in the drying mode.
  • the arrangement of the pressure medium reservoir in the first flow path makes it possible on the one hand, that the pressure fluid reservoir can hold sufficient compressed air for several cylinder cycles as a reservoir and so the compressor with low power and small size dimensioned and can be operated almost continuously.
  • An optimized by the low power consumption of the engine and a low mass compressor contributes to a low energy consumption of the vehicle.
  • this arrangement allows the venting to take place quickly and thus a speedy door operation is achieved.
  • the compressor can be bypassed by means of a venting valve. This makes it possible that the compressor does not have to be flowed through when emptying the cylinder, whereby a rapid emptying is ensured.
  • a cylinder for operating a vehicle door cylinders can be provided with only one cylinder chamber.
  • a double-acting cylinder with two cylinder chambers is used. It is favorable that the one of the two cylinder chambers via the door control valve with the atmosphere and the other of the two cylinder chambers via the door control valve with the accumulator is connectable, or that both cylinder chambers are connected via the door control valve with the accumulator and / or with the atmosphere ,
  • the object is achieved according to the invention with a method according to the features of claim 7.
  • the further embodiment of the invention can be found in the dependent claims.
  • a method in which a door control valve is actuated to change between the first functional position and the second functional position of the cylinder piston of the cylinder, wherein the compressed air from the first cylinder chamber or the second cylinder chamber for venting flows into the atmosphere and the other of the first Cylinder chamber or the second cylinder chamber is filled with compressed air from the accumulator.
  • the escaping from the cylinder chamber air passes through a second flow path via the cylinder-side check valve to the air dryer, which flows through the exiting air and is regenerated.
  • the escaping air is then finally released via a vent valve via a bypass of the compressor to the atmosphere.
  • compressed air flows from a compressed-air accumulator arranged in the first flow path between a memory-side check valve and the door control valve into the other cylinder chamber via a first flow path.
  • the cylinder is pressurized only with compressed air from the compressed air reservoir, whereby it is possible that the compressor can be dimensioned with low power consumption and small size.
  • Serving as a reservoir accumulator is used here as energy storage and can provide the system in case of need with high flow rates.
  • the compressed air flows from the other cylinder chamber during emptying through the air dryer and regenerates it. It is advantageous that in time before the operation of the door control valve, the vent valve is brought into a vent switching position in which a bypass of the compressor is opened. This makes it possible that during actuation of the door control valve in the second flow path, there is a lower pressure than in the first flow path.
  • the vent valve is brought into a compressed air switching position, in which the bypass of the compressor is closed. Then, if necessary, the compressed air reservoir can be refilled by the compressor is put into operation.
  • An advantageous development of the invention is that upon actuation of a drain valve for an emergency release, the door control valve is brought into a third switching position, in which the first cylinder chamber and the second cylinder chamber are connected to the atmosphere. This makes it possible that the vehicle door is free, only against the frictional resistance of their Auflagerung, movable.
  • the drawing shows a pneumatic door control in a schematic representation with a compressor 1 for generating compressed air, a cylinder 2 for actuating a vehicle door, an air dryer 3 and a door control valve 4.
  • the cylinder. 2 has a first cylinder chamber 8 and a second cylinder chamber 9, which are separated from each other by a cylinder piston 13 movably arranged in the cylinder 2.
  • the cylinder piston 13 can assume a first functional position O and a second functional position X, the cylinder piston 13 assuming the second functional position X as soon as the first cylinder chamber 8 is pressurized. If the second cylinder chamber 9 is pressurized, then the cylinder piston 13 is in the first functional position O.
  • a change between the first functional position O and the second functional position X is achieved by changing a first switching position A and a second switching position B of the door control valve 4.
  • the door control valve 4 is in the second switching position B.
  • the first cylinder chamber 8 is connected via a first flow path 11 with a compressed air reservoir 7 and filled with compressed air.
  • the compressed air in the first cylinder chamber 8 exerts a force on the cylinder piston 13, so that it is moved to the second functional position X and held there.
  • the first flow path 11 is decoupled from the second flow path 12 by means of the cylinder-side check valve 6 and by means of a memory-side check valve 5 from each other. Between the check valves 5, 6 and the air dryer 3, a throttle 16 is arranged.
  • a drain valve 10 is provided, which is in normal operation in a control switching position R and is placed to emergency release in an emergency switching position N, wherein in the emergency switching position N of the drain valve 10, the compressed air from the compressed air reservoir 7 the Door control valve 4 in a third switching position C provides.
  • This has the consequence that the first cylinder chamber 8 and the second cylinder chamber 9 are connected via the discharge valve 10 to the atmosphere and thus are depressurized. If the first cylinder chamber 8 and the second cylinder chamber 9 are depressurized, the vehicle door can easily be moved by hand.

Landscapes

  • Fluid-Pressure Circuits (AREA)
  • Power-Operated Mechanisms For Wings (AREA)
  • Vehicle Body Suspensions (AREA)

Abstract

The invention relates to a door controller for vehicles, comprising a compressor (1), an air drier (3), a door control valve (4), and at least one cylinder (2) that can be actuated by means of compressed air. The invention further relates to a method for actuating a cylinder (2) of a vehicle door, wherein a cylinder piston (13) of the cylinder (2) can assume a first functional position (O) and a second functional position (X). In the drying mode the air flowing into the cylinder (2) flows through the air drier (3), and in the regeneration mode the air flowing out of the cylinder (2) flows through the air drier. The cylinder (2) is loaded only with compressed air from a compressed-air accumulator (7).

Description

Türsteuerung für Fahrzeuge und ein Verfahren zur Betätigung eines Zylinders einer Fahrzeugtür  Door control for vehicles and a method for actuating a cylinder of a vehicle door
Die Erfindung betrifft eine pneumatische Türsteuerung für Fahrzeuge mit einem Verdichter, einem Lufttrockner, einem Türsteuerventil und zumindest einem mit Druckluft betätigbaren Zylinder. Die Erfindung betrifft weiterhin ein Verfahren zur Betätigung eines Zylinders einer Fahrzeugtür, bei dem ein Zylinderkolben des Zylinders zumindest eine erste Funktionsstellung und eine zweite Funktionsstellung einnehmen kann. The invention relates to a pneumatic door control for vehicles with a compressor, an air dryer, a door control valve and at least one actuatable with compressed air cylinder. The invention further relates to a method for actuating a cylinder of a vehicle door, in which a cylinder piston of the cylinder can assume at least a first functional position and a second functional position.
Eine pneumatische Fahrzeugtürsteuerung mit einem mit der Fahrzeugtür verbundenen, doppelt wirkenden Zylinder, dessen beide Zylinderkammern über Ventile mit einem Verdichter verbunden sind, ist aus der DE 10 2008 011 315 A1 bekannt. Beim Entlüften des Zylinders wird die Druckluft in die Atmosphäre entspannt. A pneumatic vehicle door control with a double-acting cylinder connected to the vehicle door, whose two cylinder chambers are connected via valves to a compressor, is known from DE 10 2008 011 315 A1. When venting the cylinder, the compressed air is released into the atmosphere.
In der Regel wird der von einem Verdichter erzeugten Druckluft in einem Lufttrockner Feuchtigkeit entzogen, da trockene Druckluft eine höhere Qualität hat, was sich unter anderem positiv auf die Lebensdauer der pneumatischen Anlage auswirkt. Ein solcher Lufttrockner muss zyklisch manuell entwässert und/oder durch zusätzlich zugeführte Wärme regeneriert werden. Bei Ausfall der Regenerationseinrichtungen oder bei Aussetzung oder Fehlbedienung der Wartung besteht die Gefahr der Vereisung des Systems. Der Erfindung liegt die Aufgabe zugrunde, eine Möglichkeit zu schaffen, eine Türsteuerung unter anderem möglichst energiesparend und wartungsfrei zu betreiben. In general, the compressed air generated by a compressor in an air dryer moisture is removed because dry compressed air has a higher quality, which, among other things, has a positive effect on the life of the pneumatic system. Such an air dryer must be dewatered cyclically manually and / or be regenerated by additionally supplied heat. In case of failure of the regeneration facilities or in case of suspension or misuse of maintenance there is a risk of icing of the system. The invention has for its object to provide a way to operate a door control among other things as energy-saving and maintenance-free.
Diese Aufgabe wird erfindungsgemäß mit einer Vorrichtung gemäß den Merkmalen des Anspruchs 1 gelöst. Die weitere Ausgestaltung der Erfindung ist den Unteransprüchen zu entnehmen. This object is achieved with a device according to the features of claim 1. The further embodiment of the invention can be found in the dependent claims.
Erfindungsgemäß ist also eine Vorrichtung vorgesehen, bei der der Zylinder über das Türsteuerventil zum Auffüllen über einen ersten Strömungspfad mit einem Lufttrockner und einem Verdichter und zum Entleeren über einen zweiten Strömungspfad mit dem Lufttrockner und der Atmosphäre verbindbar ist. Dabei ist der Lufttrockner beim Auffüllen des Zylinders im Trocknungsbetrieb und beim Entleeren des Zylinders im Regenerationsbetrieb betreibbar. Der Lufttrockner wird im Trocknungsbetrieb von der in den Zylinder einströmenden und im Regenerationsbetrieb von der aus dem Zylinder ausströmenden Luft durchströmt. Hierdurch wird es möglich, dass bei jeder Türbetätigung, also bei jedem Zylinderspiel, die Entlüftungsluft durch den Lufttrockner strömt, dort Feuchtigkeit aufnimmt und diese an die Atmosphäre abgibt. Der Lufttrockner wird somit bei jedem Zylinderspiel regeneriert, wodurch Wartungsintervalle auf ein Minimum reduziert werden oder ganz entfallen können, da er nicht mehr manuell entwässert werden muss. Auch besteht somit nicht mehr die Gefahr einer Vereisung des pneumatischen Systems. According to the invention, therefore, a device is provided in which the cylinder via the door control valve for filling via a first flow path with an air dryer and a compressor and for emptying via a second flow path to the air dryer and the atmosphere is connectable. In this case, the air dryer when filling the cylinder in the drying operation and emptying of the cylinder in the regeneration mode is operable. The air dryer is traversed in the drying operation of the flowing into the cylinder and in the regeneration mode of the effluent from the cylinder air. This makes it possible that at each door operation, so at each cylinder clearance, the venting air flows through the air dryer, where it absorbs moisture and releases it to the atmosphere. The air dryer is thus regenerated with each cylinder play, whereby maintenance intervals can be reduced to a minimum or completely eliminated, since it no longer has to be drained manually. Also, there is no longer the risk of icing of the pneumatic system.
Günstig ist es, dass der erste und der zweite Strömungspfad mittels eines zylinderseitigen und eines speicherseitigen Rückschlagventils voneinander entkoppelt sind. Hierdurch wird sichergestellt, dass die Luftführung in der Türsteuerung, insbesondere die Durchströmung des ersten Strömungspfads und des zweiten Strömungspfads, korrekt erfolgt. Vorteilhaft ist es, dass in dem ersten Strömungspfad zwischen dem Lufttrockner und dem Türsteuerventil stromabwärts hinter dem speicherseiti- gen Rückschlagventil ein Druckmittelspeicher vorgesehen ist. Der Druckmittelspeicher dient zur Aufnahme von Druckluft aus dem Verdichter und zur Abgabe von Druckluft an den Zylinder. Die von dem Druckmittelspeicher aufgenommene Druckluft ist zuvor in dem im Trocknungsbetrieb betriebenen Lufttrockner getrocknet worden. Die Anordnung des Druckmittelspeichers in dem ersten Strömungspfad ermöglicht es einerseits, dass der Druckmittelspeicher als Reservoir ausreichend Druckluft für mehrere Zylinderspiele aufnehmen kann und so der Verdichter mit geringer Leistungsaufnahme und auch kleiner Baugröße dimensioniert und nahezu kontinuierlich betrieben werden kann. Ein durch die geringe Leistungsaufnahme des Motors und eine geringe Masse optimierter Verdichter trägt zu einem geringen Energiebedarf des Fahrzeugs bei. Andererseits ermöglicht diese Anordnung, dass die Entlüftung schnell erfolgt und so eine zügige Türbetätigung erreicht wird. It is favorable that the first and the second flow path are decoupled from one another by means of a cylinder-side and a memory-side non-return valve. This ensures that the air duct in the door control, in particular the flow through the first flow path and the second flow path, takes place correctly. It is advantageous that in the first flow path between the air dryer and the door control valve downstream of the memory-side non-return valve, a pressure medium accumulator is provided. The accumulator serves to receive compressed air from the compressor and to deliver compressed air to the cylinder. The compressed air taken up by the accumulator has previously been dried in the air dryer operated in the drying mode. The arrangement of the pressure medium reservoir in the first flow path makes it possible on the one hand, that the pressure fluid reservoir can hold sufficient compressed air for several cylinder cycles as a reservoir and so the compressor with low power and small size dimensioned and can be operated almost continuously. An optimized by the low power consumption of the engine and a low mass compressor contributes to a low energy consumption of the vehicle. On the other hand, this arrangement allows the venting to take place quickly and thus a speedy door operation is achieved.
Vorteilhaft ist es, dass der Verdichter mittels eines Entlüftungsventils umgehbar ist. Hierdurch ist es möglich, dass der Verdichter beim Entleeren des Zylinders nicht durchströmt werden muss, wodurch ein schnelles Entleeren sichergestellt wird. It is advantageous that the compressor can be bypassed by means of a venting valve. This makes it possible that the compressor does not have to be flowed through when emptying the cylinder, whereby a rapid emptying is ensured.
Als Zylinder zur Betätigung einer Fahrzeugtür können Zylinder mit nur einer Zylinderkammer vorgesehen werden. In der Regel wird ein doppelt wirkender Zylinder mit zwei Zylinderkammern eingesetzt. Dabei ist es günstig, dass die eine der beiden Zylinderkammern über das Türsteuerventil mit der Atmosphäre und die andere der beiden Zylinderkammern über das Türsteuerventil mit dem Druckmittelspeicher verbindbar ist, oder dass beide Zylinderkammern über das Türsteuerventil mit dem Druckmittelspeicher und/oder mit der Atmosphäre verbindbar sind. Die Aufgabe wird erfindungsgemäß auch mit einem Verfahren gemäß den Merkmalen des Anspruchs 7 gelöst. Die weitere Ausgestaltung der Erfindung ist den Unteransprüchen zu entnehmen. As a cylinder for operating a vehicle door cylinders can be provided with only one cylinder chamber. As a rule, a double-acting cylinder with two cylinder chambers is used. It is favorable that the one of the two cylinder chambers via the door control valve with the atmosphere and the other of the two cylinder chambers via the door control valve with the accumulator is connectable, or that both cylinder chambers are connected via the door control valve with the accumulator and / or with the atmosphere , The object is achieved according to the invention with a method according to the features of claim 7. The further embodiment of the invention can be found in the dependent claims.
Erfindungsgemäß ist also ein Verfahren vorgesehen, bei dem zum Wechsel zwischen der ersten Funktionsstellung und der zweiten Funktionsstellung des Zylinderkolbens des Zylinders ein Türsteuerventil betätigt wird, wobei die Druckluft aus der ersten Zylinderkammer oder der zweiten Zylinderkammer zur Entlüftung in die Atmosphäre strömt und die andere der ersten Zylinderkammer oder der zweiten Zylinderkammer mit Druckluft aus dem Druckmittelspeicher aufgefüllt wird. Die aus der einen Zylinderkammer entweichende Luft gelangt über einen zweiten Strömungspfad über das zylinderseitige Rückschlagventil zu dem Lufttrockner, der von der austretenden Luft durchströmt und dabei regeneriert wird. Die austretende Luft wird dann schließlich über ein Entlüftungsventil über eine Umgehung des Verdichters an die Atmosphäre abgegeben. Gleichzeitig strömt über einen ersten Strömungspfad Druckluft aus einem in dem ersten Strömungspfad zwischen einem speicherseitigen Rückschlagventil und dem Türsteuerventil angeordneten Druckluftspeicher in die andere Zylinderkammer. According to the invention, therefore, a method is provided in which a door control valve is actuated to change between the first functional position and the second functional position of the cylinder piston of the cylinder, wherein the compressed air from the first cylinder chamber or the second cylinder chamber for venting flows into the atmosphere and the other of the first Cylinder chamber or the second cylinder chamber is filled with compressed air from the accumulator. The escaping from the cylinder chamber air passes through a second flow path via the cylinder-side check valve to the air dryer, which flows through the exiting air and is regenerated. The escaping air is then finally released via a vent valve via a bypass of the compressor to the atmosphere. At the same time, compressed air flows from a compressed-air accumulator arranged in the first flow path between a memory-side check valve and the door control valve into the other cylinder chamber via a first flow path.
Der Zylinder wird nur mit Druckluft aus dem Druckluftspeicher beaufschlagt, wodurch es möglich ist, dass der Verdichter mit geringer Leistungsaufnahme und auch kleiner Baugröße dimensioniert werden kann. Der als Reservoir dienende Druckmittelspeicher wird hierbei als Energiespeicher verwendet und kann das System im Bedarfsfall mit hohen Volumenströmen versorgen. Zum anderen wird es möglich, dass gleichzeitig mit dem Auffüllen der einen Zylinderkammer die Druckluft aus der anderen Zylinderkammer beim Entleeren durch den Lufttrockner strömt und diesen regeneriert. Vorteilhaft ist es, dass zeitlich vor der Betätigung des Türsteuerventils das Entlüftungsventil in eine Entlüftungs-Schaltstellung gebracht wird, bei der eine Umgehung des Verdichters geöffnet wird. Hierdurch wird es möglich, dass beim Betätigen des Türsteuerventils in dem zweiten Strömungspfad ein geringerer Druck herrscht als in dem ersten Strömungspfad. So wird im Zusammenwirken mit den Rückschlagventilen sichergestellt, dass beim Entleeren des Zylinders die ausströmende Luft nicht erneut in den Druckmittelspeicher, sondern durch den Lufttrockner in die Atmosphäre entweicht. Das Einstellen der genannten Druckdifferenz ermöglicht es darüber hinaus, wartungsarme und kostengünstige, federbelastete Rückschlagventile einzusetzen. An Stelle der Rückschlagventile können auch schaltbare Ventile vorgesehen werden. The cylinder is pressurized only with compressed air from the compressed air reservoir, whereby it is possible that the compressor can be dimensioned with low power consumption and small size. Serving as a reservoir accumulator is used here as energy storage and can provide the system in case of need with high flow rates. On the other hand, it is possible that simultaneously with the filling of a cylinder chamber, the compressed air flows from the other cylinder chamber during emptying through the air dryer and regenerates it. It is advantageous that in time before the operation of the door control valve, the vent valve is brought into a vent switching position in which a bypass of the compressor is opened. This makes it possible that during actuation of the door control valve in the second flow path, there is a lower pressure than in the first flow path. Thus, in cooperation with the check valves, it is ensured that when the cylinder is emptied, the outflowing air does not escape again into the accumulator but through the air dryer into the atmosphere. The setting of said pressure difference also makes it possible to use low-maintenance and low-cost, spring-loaded check valves. In place of the check valves and switchable valves can be provided.
Weiterhin ist es günstig, dass, nachdem der Zylinderkolben bewegt wurde, das Entlüftungsventil in eine Druckluft-Schaltstellung gebracht wird, bei der die Umgehung des Verdichters geschlossen wird. Dann kann bei Bedarf der Druckluftspeicher wieder befüllt werden, indem der Verdichter in Betrieb genommen wird. Furthermore, it is favorable that after the cylinder piston has been moved, the vent valve is brought into a compressed air switching position, in which the bypass of the compressor is closed. Then, if necessary, the compressed air reservoir can be refilled by the compressor is put into operation.
Eine vorteilhafte Weiterbildung der Erfindung ist es, dass bei einer Betätigung eines Ablassventils für eine Notentriegelung das Türsteuerventil in eine dritte Schaltstellung gebracht wird, bei der die erste Zylinderkammer und die zweite Zylinderkammer mit der Atmosphäre verbunden werden. Hierdurch wird es möglich, dass die Fahrzeugtür frei, nur noch gegen den Reibungswiderstand ihrer Auflagerung, beweglich ist. An advantageous development of the invention is that upon actuation of a drain valve for an emergency release, the door control valve is brought into a third switching position, in which the first cylinder chamber and the second cylinder chamber are connected to the atmosphere. This makes it possible that the vehicle door is free, only against the frictional resistance of their Auflagerung, movable.
In der Zeichnung ist ein Ausführungsbeispiel der Erfindung dargestellt und wird im Folgenden näher beschrieben. Die Zeichnung zeigt eine pneumatische Türsteuerung in schematischer Darstellung mit einem Verdichter 1 zur Erzeugung von Druckluft, einem Zylinder 2 zur Betätigung einer Fahrzeugtür, einem Lufttrockner 3 und einem Türsteuerventil 4. Der Zylinder 2 hat eine erste Zylinderkammer 8 und eine zweite Zylinderkammer 9, die durch einen in dem Zylinder 2 beweglich angeordneten Zylinderkolben 13 voneinander getrennt sind. Der Zylinderkolben 13 kann planmäßig eine erste Funktionsstellung O und eine zweite Funktionsstellung X einnehmen, wobei der Zylinderkolben 13 die zweite Funktionsstellung X einnimmt, sobald die erste Zylinderkammer 8 mit Druck beaufschlagt ist. Wird die zweite Zylinderkammer 9 mit Druck beaufschlagt, dann ist der Zylinderkolben 13 in der ersten Funktionsstellung O. In the drawing, an embodiment of the invention is shown and will be described in more detail below. The drawing shows a pneumatic door control in a schematic representation with a compressor 1 for generating compressed air, a cylinder 2 for actuating a vehicle door, an air dryer 3 and a door control valve 4. The cylinder. 2 has a first cylinder chamber 8 and a second cylinder chamber 9, which are separated from each other by a cylinder piston 13 movably arranged in the cylinder 2. As planned, the cylinder piston 13 can assume a first functional position O and a second functional position X, the cylinder piston 13 assuming the second functional position X as soon as the first cylinder chamber 8 is pressurized. If the second cylinder chamber 9 is pressurized, then the cylinder piston 13 is in the first functional position O.
Ein Wechsel zwischen der ersten Funktionsstellung O und der zweiten Funktionsstellung X wird durch eine Änderung einer ersten Schaltstellung A und einer zweiten Schaltstellung B des Türsteuerventils 4 erreicht. In der gezeigten Darstellung ist das Türsteuerventil 4 in der zweiten Schaltstellung B. Dadurch ist die erste Zylinderkammer 8 über einen ersten Strömungspfad 11 mit einem Druckluftspeicher 7 verbunden und mit Druckluft gefüllt. Die Druckluft in der ersten Zylinderkammer 8 übt eine Kraft auf den Zylinderkolben 13 aus, sodass dieser in die zweite Funktionsstellung X bewegt und dort gehalten wird. A change between the first functional position O and the second functional position X is achieved by changing a first switching position A and a second switching position B of the door control valve 4. In the illustration shown, the door control valve 4 is in the second switching position B. As a result, the first cylinder chamber 8 is connected via a first flow path 11 with a compressed air reservoir 7 and filled with compressed air. The compressed air in the first cylinder chamber 8 exerts a force on the cylinder piston 13, so that it is moved to the second functional position X and held there.
Wird das Türsteuerventil 4 betätigt, also beispielsweise in die erste If the door control valve 4 is actuated, that is, for example, in the first
Schaltstellung A gebracht, so entleert sich die mit Druckluft gefüllte erste Zylinderkammer 8 und die zweite Zylinderkammer 9 wird mit Druckluft gefüllt. Die aus der ersten Zylinderkammer 8 entweichende Luft gelangt über den zweiten Strömungspfad 12 über ein zylinderseitiges Rückschlagventil 6 zu dem Lufttrockner 3. Der Lufttrockner 3 wird von der entweichenden Luft durchströmt und dabei regeneriert. Die austretende Luft kann dann schließlich über das Entlüftungsventil 14 in einer Entlüftungs-Schalt- stellung E über eine Umgehung 15 des Verdichters 1 an die Atmosphäre abgegeben werden. Gleichzeitig strömt über den ersten Strömungspfad 11 Druckluft aus einem Druckluftspeicher 7 in die zweite Zylinderkammer 9. Um ein Einströmen der austretenden Luft in den Druckluftspeicher 7 zu unterbinden, wird das Entlüftungsventil 14 zeitlich kurz vor dem Türsteuerventil 4 betätigt, wodurch der Druck im zweiten Strömungspfad 12 geringer ist als im ersten Strömungspfad 11. Switched position A brought so emptied filled with compressed air first cylinder chamber 8 and the second cylinder chamber 9 is filled with compressed air. The escaping from the first cylinder chamber 8 air passes through the second flow path 12 via a cylinder-side check valve 6 to the air dryer 3. The air dryer 3 is traversed by the escaping air and thereby regenerated. The escaping air can then finally be discharged via the vent valve 14 in a venting switching position E via a bypass 15 of the compressor 1 to the atmosphere. At the same time, compressed air flows from the compressed air reservoir 7 into the second cylinder chamber 9 via the first flow path 11. In order to allow the outgoing air to flow into the compressed air reservoir 7 Stop, the vent valve 14 is actuated shortly before the door control valve 4, whereby the pressure in the second flow path 12 is lower than in the first flow path eleventh
Nach dem Wechsel des Zylinderkolbens zwischen der ersten Funktionsstellung O und der zweiten Funktionsstellung X wird das Entlüftungsventil 14, wie in der Figur gezeigt, zum Schließen der Umgehung 15 in Druckluft-Schaltstellung D gebracht. Nun kann vom Verdichter 1 erzeugte Druckluft im Lufttrockner 3 getrocknet werden und in den Druckluftspeicher 7 nachströmen, um diesen aufzufüllen. After the change of the cylinder piston between the first functional position O and the second functional position X, the vent valve 14, as shown in the figure, brought to close the bypass 15 in compressed air switching position D. Now compressed air generated by the compressor 1 can be dried in the air dryer 3 and flow into the compressed air reservoir 7 to fill it.
Der erste Strömungspfad 11 ist von dem zweiten Strömungspfad 12 mittels des zylinderseitigen Rückschlagventils 6 und mittels eines speicher- seitigen Rückschlagventils 5 voneinander entkoppelt. Zwischen den Rückschlagventilen 5, 6 und dem Lufttrockner 3 ist eine Drossel 16 angeordnet. The first flow path 11 is decoupled from the second flow path 12 by means of the cylinder-side check valve 6 and by means of a memory-side check valve 5 from each other. Between the check valves 5, 6 and the air dryer 3, a throttle 16 is arranged.
Für eine Notentriegelung der Fahrzeugtür ist ein Ablassventil 10 vorgesehen, das im Regelbetrieb in einer Regel-Schaltstellung R steht und zur Notentriegelung in eine Not-Schaltstellung N gestellt wird, wobei in der Not-Schaltstellung N des Ablassventils 10 die Druckluft aus dem Druckluftspeicher 7 das Türsteuerventil 4 in eine dritte Schaltstellung C stellt. Dies hat zur Folge, dass die erste Zylinderkammer 8 und die zweite Zylinderkammer 9 über das Ablassventil 10 mit der Atmosphäre verbunden und somit drucklos sind. Sind die erste Zylinderkammer 8 und die zweite Zylinderkammer 9 drucklos, lässt sich die Fahrzeugtür leicht von Hand bewegen. For emergency unlocking the vehicle door, a drain valve 10 is provided, which is in normal operation in a control switching position R and is placed to emergency release in an emergency switching position N, wherein in the emergency switching position N of the drain valve 10, the compressed air from the compressed air reservoir 7 the Door control valve 4 in a third switching position C provides. This has the consequence that the first cylinder chamber 8 and the second cylinder chamber 9 are connected via the discharge valve 10 to the atmosphere and thus are depressurized. If the first cylinder chamber 8 and the second cylinder chamber 9 are depressurized, the vehicle door can easily be moved by hand.

Claims

Patentansprüche claims
1. Türsteuerung für Fahrzeuge mit einem Verdichter (1 ), einem Lufttrockner (3), einem Türsteuerventil (4) und zumindest einem mit Druckluft betätigbaren Zylinder (2), dadurch gekennzeichnet, dass der Zylinder (2) über das Türsteuerventil (4) zum Auffüllen über einen ersten Strömungspfad (11 ) mit einem Lufttrockner (3) und einem Verdichter (1) und zum Entleeren über einen zweiten Strömungspfad (12) mit dem Lufttrockner (3) und mit der Atmosphäre verbindbar ist. 1. Door control for vehicles with a compressor (1), an air dryer (3), a door control valve (4) and at least one actuatable with compressed air cylinder (2), characterized in that the cylinder (2) via the door control valve (4) for Filling via a first flow path (11) with an air dryer (3) and a compressor (1) and for emptying via a second flow path (12) with the air dryer (3) and with the atmosphere is connectable.
2. Türsteuerung nach Anspruch 1 , dadurch gekennzeichnet, dass der erste Strömungspfad (11 ) und der zweite Strömungspfad (12) über ein speicherseitiges Rückschlagventil (5) und ein zylinderseitiges Rückschlagventil (6) voneinander entkoppelt sind. 2. Door control according to claim 1, characterized in that the first flow path (11) and the second flow path (12) via a memory-side check valve (5) and a cylinder-side check valve (6) are decoupled from each other.
3. Türsteuerung nach den Ansprüchen 1 oder 2, dadurch gekennzeichnet, dass in dem ersten Strömungspfad (11 ) zwischen dem Lufttrockner (3) und dem Türsteuerventil (4) stromabwärts hinter dem speicherseitigen Rückschlagventil (5) ein Druckmittelspeicher (7) zur Aufnahme von Druckluft aus dem Verdichter (1 ) und zur Abgabe von Druckluft an den Zylinder (2) vorgesehen ist. 3. Door control according to claims 1 or 2, characterized in that in the first flow path (11) between the air dryer (3) and the door control valve (4) downstream of the storage-side check valve (5) a pressure fluid reservoir (7) for receiving compressed air from the compressor (1) and for the delivery of compressed air to the cylinder (2) is provided.
4. Türsteuerung nach zumindest einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Verdichter (1 ) mittels eines Entlüftungsventils (14) umgehbar ist. 4. Door control according to at least one of the preceding claims, characterized in that the compressor (1) by means of a vent valve (14) is bypassed.
5. Türsteuerung nach zumindest einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Zylinder (2) ein doppelt wirkender Zylinder mit einer ersten Zylinderkammer (8) und einer zweiten Zylinderkammer (9) ist. 5. Door control according to at least one of the preceding claims, characterized in that the cylinder (2) is a double-acting cylinder with a first cylinder chamber (8) and a second cylinder chamber (9).
6. Türsteuerung nach Anspruch 5, dadurch gekennzeichnet, dass die erste Zylinderkammer (8) und die zweite Zylinderkammer (9) über das Türsteuerventil (4) wechselseitig mit dem Druckmittelspeicher (7) und/oder mit der Atmosphäre verbindbar sind. 6. Door control according to claim 5, characterized in that the first cylinder chamber (8) and the second cylinder chamber (9) via the door control valve (4) are mutually connectable to the accumulator (7) and / or to the atmosphere.
7. Verfahren zur Betätigung eines Zylinders (2) einer Fahrzeugtür, bei dem ein Zylinderkolben (13) des Zylinders (2) eine erste Funktionsstellung (O) und eine zweite Funktionsstellung (X) einnehmen kann, dadurch gekennzeichnet, dass zum Wechsel der ersten Funktionsstellung (O) und der zweiten Funktionsstellung (X) ein Türsteuerventil (4) betätigt wird, wobei die Druckluft aus einer der ersten Zylinderkammer (8) oder der zweiten Zylinderkammer (9) zur Entlüftung in die Atmosphäre strömt und die andere der ersten Zylinderkammer (8) oder der zweiten Zylinderkammer (9) mit Druckluft aus dem Druckmittelspeicher (7) aufgefüllt wird. 7. A method for actuating a cylinder (2) of a vehicle door, in which a cylinder piston (13) of the cylinder (2) can assume a first functional position (O) and a second functional position (X), characterized in that for changing the first functional position (O) and the second functional position (X), a door control valve (4) is actuated, wherein the compressed air from one of the first cylinder chamber (8) or the second cylinder chamber (9) flows into the atmosphere for venting and the other of the first cylinder chamber (8 ) or the second cylinder chamber (9) is filled with compressed air from the accumulator (7).
8. Verfahren nach Anspruch 7, dadurch gekennzeichnet, dass vor der Betätigung des Türsteuerventils (4) das Entlüftungsventil (14) in eine Ent- lüftungs-Schaltstellung (E) gebracht wird und so eine Umgehung (15) des Verdichters (1 ) geöffnet wird. 8. The method according to claim 7, characterized in that before actuation of the door control valve (4) the vent valve (14) in a venting ventilation position (E) is brought and so a bypass (15) of the compressor (1) is opened ,
9. Verfahren nach zumindest einem der vorhergehenden Ansprüche 7 und 8, dadurch gekennzeichnet, dass, nachdem der Wechsel zwischen der ersten Funktionsstellung (O) und der zweiten Funktionsstellung (X) des Zylinderkolbens (13) vollzogen ist, das Entlüftungsventil (14) in eine Druckluft-Schaltstellung (D) gebracht und so die Umgehung (15) des Verdichters (1 ) geschlossen wird. 9. The method according to at least one of the preceding claims 7 and 8, characterized in that, after the change between the first functional position (O) and the second functional position (X) of the cylinder piston (13) is completed, the vent valve (14) in a Compressed air switching position (D) brought and so the bypass (15) of the compressor (1) is closed.
10. Verfahren nach zumindest einem der vorhergehenden Ansprüche 7 bis 9, dadurch gekennzeichnet, dass bei einer Betätigung eines Ablassventils (10) für eine Notentriegelung die erste Zylinderkammer (8) und die zweite Zylinderkammer (9) mit der Atmosphäre verbunden werden. 10. The method according to at least one of the preceding claims 7 to 9, characterized in that upon actuation of a discharge valve (10) for an emergency release, the first cylinder chamber (8) and the second cylinder chamber (9) are connected to the atmosphere.
EP11724972.2A 2010-09-14 2011-06-10 Door controller for vehicles and method for actuating a cylinder of a vehicle door Not-in-force EP2616619B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102010045337A DE102010045337A1 (en) 2010-09-14 2010-09-14 Door control for vehicles and a method for actuating a cylinder of a vehicle door
PCT/EP2011/002853 WO2012034610A1 (en) 2010-09-14 2011-06-10 Door controller for vehicles and method for actuating a cylinder of a vehicle door

Publications (2)

Publication Number Publication Date
EP2616619A1 true EP2616619A1 (en) 2013-07-24
EP2616619B1 EP2616619B1 (en) 2016-11-30

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Application Number Title Priority Date Filing Date
EP11724972.2A Not-in-force EP2616619B1 (en) 2010-09-14 2011-06-10 Door controller for vehicles and method for actuating a cylinder of a vehicle door

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US (1) US9115528B2 (en)
EP (1) EP2616619B1 (en)
CN (1) CN102959169B (en)
DE (1) DE102010045337A1 (en)
WO (1) WO2012034610A1 (en)

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US10392852B1 (en) 2015-11-25 2019-08-27 Gentleman Door Automation LLC Automatic door operator

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WO2012034610A1 (en) 2012-03-22
CN102959169A (en) 2013-03-06
EP2616619B1 (en) 2016-11-30
CN102959169B (en) 2015-12-09
DE102010045337A1 (en) 2012-03-15
US9115528B2 (en) 2015-08-25
US20130167519A1 (en) 2013-07-04

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