EP0446651B1 - Electro-pneumatic actioning system for passenger vehicle door - Google Patents
Electro-pneumatic actioning system for passenger vehicle door Download PDFInfo
- Publication number
- EP0446651B1 EP0446651B1 EP91102236A EP91102236A EP0446651B1 EP 0446651 B1 EP0446651 B1 EP 0446651B1 EP 91102236 A EP91102236 A EP 91102236A EP 91102236 A EP91102236 A EP 91102236A EP 0446651 B1 EP0446651 B1 EP 0446651B1
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- EP
- European Patent Office
- Prior art keywords
- door
- switch
- emergency
- input
- relay
- 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.)
- Expired - Lifetime
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Classifications
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- 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
- E05F15/56—Power-operated mechanisms for wings using fluid-pressure actuators for horizontally-sliding wings
- E05F15/565—Power-operated mechanisms for wings using fluid-pressure actuators for horizontally-sliding wings for railway-cars
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05Y—INDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05Y2900/00—Application of doors, windows, wings or fittings thereof
- E05Y2900/50—Application of doors, windows, wings or fittings thereof for vehicles
- E05Y2900/506—Application of doors, windows, wings or fittings thereof for vehicles for buses
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05Y—INDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05Y2900/00—Application of doors, windows, wings or fittings thereof
- E05Y2900/50—Application of doors, windows, wings or fittings thereof for vehicles
- E05Y2900/51—Application of doors, windows, wings or fittings thereof for vehicles for railway cars or mass transit vehicles
Definitions
- the invention relates to an electropneumatic door drive in vehicles for the transport of people, in particular for swing doors of buses, with the features from the preamble of claim 1.
- the reversing valve used in these door drives is designed so that when an emergency signal is emitted from the emergency unlocking device, for example by actuating an emergency valve, the pistons of the pneumatic drive cylinder are acted upon by compressed air from both sides.
- the drive device does not end up in a depressurized state, but only in a weak state in which the vehicle door is in the Principle can be opened by hand.
- the object underlying the invention was to provide an electropneumatic door drive with the features from the preamble of claim 1 such that after actuation of the emergency release device when trying to open the door by hand, a signal that triggers the opening movement of the door is generated.
- the basic principle of the invention is to provide an emergency control device which is only effective when the emergency unlocking device, for example an emergency valve, is actuated and which then supplies a signal to the reversing valve from the opening switch arranged in the area of the door or the door drive in order to achieve the Valve position in which the opening movement of the door side of the piston of the Compressed air is applied to the drive cylinder.
- the emergency control device is a bistable relay which controls the supply of the control signals for the reversing valve via a relay contact which can assume two positions, hereinafter referred to as "OPEN" and "CLOSE" will.
- This bistable relay has two control inputs.
- the first control input is designed as a so-called T input, ie a change in state of the switching position of the relay contact is achieved each time the control signal at the input changes from the value logic "0" to the value logic "1", the return of the control signal to the value " 0 "has not yet caused a change of state.
- This T input is connected to the switch or button that can be actuated by the driver for opening and closing the door via an inverter.
- a second control input of the bistable relay is designed as a so-called S input, that is to say as an input in which a control signal with the value "0" defines a set state which has a very specific position of the relay contact, in the present case the position "OPEN" Consequence.
- This S input is connected to the emergency switch, the actuation of which sets the relay contact in the "OPEN" position under all circumstances.
- another relay contact closes, which establishes the connection to the opening switch located in the area of the door or the door operator, via which a control signal is emitted when the door is attempted to be opened manually, which is sent directly to the corresponding input via the two relay contacts of the reversing valve is supplied so that the opening movement of the door is triggered.
- the circuit has the property of a safety circuit, which means that the opening switch can never trigger a closing movement of the door.
- the actuation of the emergency switch puts the emergency control device into a standby state, while the actual triggering of the opening movement then takes place from the opening switch.
- the emergency switch can be coupled directly to the switching device known per se, for example an emergency tap, with which the door is switched without power from the emergency unlocking device.
- the opening switch the closing of which triggers the actual opening movement of the door
- a known pressure wave switch can be used here, as is known from the anti-trap devices on vehicle doors, which is arranged in a so-called "sensing edge" on the door.
- an opening switch can be used which closes when such a lifting movement occurs.
- the opening switch can also be designed so that it responds to a slight opening movement of the door, it being expedient to ensure in terms of circuitry that this response can only take place when the door is inactive.
- the drawing shows a circuit diagram of an embodiment of an electropneumatic door drive with an emergency control device for triggering an opening movement of the door, for example for the outer swing door of a bus.
- the representation corresponds to the switching state "door open”.
- the door movement is effected by a pneumatic drive cylinder 3, in the supply circuit 1.1 of which consists of a compressed air source 1 and the two branch lines 1.2 and 1.3, an electrically and pneumatically controllable reversing valve 2 of a known type is arranged.
- This reversing valve 2 can assume a total of three valve positions. In a first valve position shown in FIG. 1, one side of the piston 3.3 is acted upon via the line 1.2 and the input 3.1 of the drive cylinder, which leads to a closing movement of the door. As explained in more detail below, this valve position is achieved by electrical control of the control input 2.1.
- the reversing valve 2 When the control input 2.2 is electrically actuated, the reversing valve 2 is switched into a valve position in which the line 1.3 and the input 3.2 on the Drive cylinder is applied to the other side of the piston 3.3, which leads to an opening movement of the door.
- the valve can also be brought into a valve position in which both sides of the piston 3.3 are acted upon via the lines 1.2 and 1.3 and the inputs 3.1 and 3.2. In this position, the piston is in a state that is not depressurized but has no power.
- control input 2.3 is actuated pneumatically via a supply line 1.4 coming from the compressed air source 1, in which an emergency valve 4 is arranged.
- the emergency valve 4 is actuated, the piston 3.3 is therefore switched off.
- Resetting the reversing valve 2 to the "CLOSED" or “OPEN” state is not possible via the control input 2.3, but only by means of electrical signals via the control inputs 2.1 and 2.2.
- the bistable relay 5 has a supply input 5.5, which is connected to a voltage source SP via a voltage adjustment circuit 7 and a reverse polarity protection diode D.
- the input 5.6 of the relay 5 is connected to ground.
- Relay 5 has two control inputs.
- a first control input 5.3 is designed as a so-called T input.
- this input is coupled to the output of the circuit 7 via a "pull-up" resistor R2 and, on the other hand, is connected to the voltage source SP via an inverting element 8, a switching device S6 explained in more detail below and the button S1 which can be actuated by the driver.
- the design of the input 5.3 as a T input has the result that when control pulses are supplied to this input, the bistable relay is set back and forth by means of the pushbutton S1, so that the relay contact 5.1 continuously moves to the "CLOSED" position (in FIG 1 shown) or "OPEN” is set.
- the control signals leading to the reversing valve 2 are then fed from the voltage source SP via supply lines 6.1 and 6 to the relay contact 5.1.
- the second control input 5.4 of the relay 5 is designed as a so-called S input.
- This input is coupled via a "pull-up" resistor R1 to the output of the circuit 7 and can also be connected to ground via an emergency switch S3.
- the formation of the input 5.4 as an S input has the effect that, when the emergency switch S3 is closed, a continuous signal arrives at this input, which causes the first relay contact 5.1 to be set to the "OPEN" position.
- a second relay contact 5.2 closes, which connects the voltage supply line 6 leading to the first relay contact 5.1 via a further supply line 6.2, an opening switch S2 and an additional limit switch S4 to the voltage source SP.
- the opening switch S2 is designed as a limit switch and can be coupled to the door drive approximately in such a way that it opens a lifting movement of the rotating column DR closes and in this way connects the control input 2.2 of the reversing valve 2 to the voltage source SP via the relay contacts 5.1 and 5.2 and the additional limit switch S4 which closes when the door opens. Due to this connection, the opening movement of the door is initiated.
- the opening switch S2 closes when a violent opening movement is exerted on the door by hand, which leads to a lifting movement of the rotating column DR.
- the prerequisite for this is that the emergency valve 4 was previously actuated in such a way that the reversing valve 2 is in the position in which the piston 3.3 is in the powerless state, in which the rotary column DR is lowered due to the pressure compensation and the emergency switch S3 was briefly closed .
- the opening switch S2 can of course also be designed as a pressure wave switch and arranged on a sensing edge of the door.
- the emergency switch S3 is mechanically coupled to the emergency valve 4. This can be done, for example, in such a way that actuation of the emergency switch S3 is triggered when the emergency valve 4 is brought into the alarm position in which the control input 2.3 of the reversing valve 2 is activated. The emergency valve 4 is then automatically returned to the neutral position so that the opening movement of the door is initiated via the control input 2.2 of the reversing valve 2 when the opening switch S2 is closed.
- the emergency switch S3 can also be located in a circuit device by means of which the Control input 2.3 of the reversing valve 2 supplied signal is generated electrically.
- the switching element S6 switched on between the button S1 and the inverting element 8 is part of a device which prevents the door from being opened by the driver if the speed of the vehicle is still above a predetermined limit value, for example 5 km / h.
- the switching element S6 is connected to a control device 9.1, which contains a sensor 9.2 sensing the vehicle speed. Switching element S6 opens above the specified vehicle speed and the door cannot be opened.
- a second safety device has a switch S7, via which the control input 5.4 of the relay 5 can be connected to ground and thus receives a control signal by means of which the relay contact 5.1 is switched to the "open" position.
- the switch S7 is controlled by a pressure sensor 10, which senses the pressure in the compressed air line 1.1. The switch S7 closes when this pressure drops below a predetermined value, thereby preventing undefined conditions from occurring.
- the opening switch S2 can also be designed as a limit switch which responds when the door can be opened manually by a gap of a predetermined width. In such a case, however, it turned out to be Appropriately proven if the opening switch is in a circuit that can only be activated when the drive is in the above-mentioned powerless state.
Abstract
Description
Die Erfindung betrifft einen elektropneumatischen Türantrieb in Fahrzeugen für Personenbeförderung, insbesondere für Außenschwenktüren von Omnibussen, mit den Merkmalen aus dem Oberbegriff des Patentanspruchs 1.The invention relates to an electropneumatic door drive in vehicles for the transport of people, in particular for swing doors of buses, with the features from the preamble of
Derartige Türantriebe sind bekannt, siehe z.B. EP-A-0 163 861.Such door drives are known, see e.g. EP-A-0 163 861.
Das bei diesen Türantrieben verwendete Umsteuerventil ist so ausgebildet, daß bei Abgabe eines Notsignals von der Notentriegelungseinrichtung aus, beispielsweise durch Betätigung eines Nothahns, der Kolben des pneumatischen Antriebszylinders von beiden Seiten mit Druckluft beaufschlagt wird. Die Antriebsvorrichtung gerät hierdurch nicht in einen drucklosen, sondern nur in einen kraftlosen Zustand, in dem die Fahrzeugtür im Prinzip von Hand geöffnet werden kann. Es hat sich nun herausgestellt, daß in der Praxis dieses Öffnen der Fahrzeugtür von Hand im Notfall mühsam werden kann, weil einerseits im kraftlosen Zustand des Türantriebs doch noch erhebliche Reibungskräfte zu überwinden sind und weil bei einer ungünstigen geneigten Stellung des Fahrzeugs beim Öffnen von Hand in die Schließstellung wirkende Komponenten des Türgewichtes mit überwunden werden müssen, was außerdem zur Folge haben kann, daß die Tür beim Loslassen sofort wieder zufällt.The reversing valve used in these door drives is designed so that when an emergency signal is emitted from the emergency unlocking device, for example by actuating an emergency valve, the pistons of the pneumatic drive cylinder are acted upon by compressed air from both sides. As a result, the drive device does not end up in a depressurized state, but only in a weak state in which the vehicle door is in the Principle can be opened by hand. It has now been found that, in practice, this opening of the vehicle door by hand can be tedious in an emergency, because on the one hand considerable frictional forces can still be overcome in the inoperative state of the door drive and because in an unfavorable inclined position of the vehicle when opened by hand in components of the door weight acting must be overcome with the closed position, which can also have the consequence that the door closes again immediately when released.
Die der Erfindung zugrunde liegende Aufgabe bestand darin, einen elektropneumatischen Türantrieb mit den Merkmalen aus dem Oberbegriff des Patentanspruchs 1 so auszubilden, daß nach Betätigung der Notentriegelungseinrichtung beim Versuch, die Tür von Hand zu öffnen, ein die Öffnungsbewegung der Tür auslösendes Signal erzeugt wird.The object underlying the invention was to provide an electropneumatic door drive with the features from the preamble of
Die Lösung dieser Aufgabe erfolgt erfindungsgemäß mit den Merkmalen aus dem kennzeichnenden Teil des Patentanspruchs 1.This object is achieved according to the invention with the features from the characterizing part of
Vorteilhafte Weiterbildungen des erfindungsgemäßen Türantriebes sind in den Unteransprüchen beschrieben.Advantageous further developments of the door drive according to the invention are described in the subclaims.
Das Grundprinzip der Erfindung besteht darin, eine Notsteuervorrichtung vorzusehen, die nur dann wirksam wird, wenn die Notentriegelungseinrichtung, beispielsweise ein Nothahn, betätigt ist und die dann von dem im Bereich der Tür oder des Türantriebs angeordneten Öffnungsschalter her dem Umsteuerventil ein Signal zuführt zur Erzielung der Ventilstellung, in der die eine Öffnungsbewegung der Tür bewirkende Seite des Kolbens des Antriebszylinders mit Druckluft beaufschlagt wird. Wie weiter unten anhand eines Ausführungsbeispiels näher erläutert, ist das wesentliche Bauteil dieser Notsteuervorrichtung ein bistabiles Relais, das die Zuführung der Ansteuersignale für das Umsteuerventil über einen Relaiskontakt steuert, der zwei Positionen einnehmen kann, die im folgenden mit "AUF" und "ZU" bezeichnet werden. Dieses bistabile Relais besitzt zwei Steuereingänge. Der erste Steuereingang ist als sogenannter T-Eingang ausgebildet, d.h. es wird jedesmal ein Zustandswechsel der Schaltstellung des Relaiskontakts erzielt, wenn das Steuersignal am Eingang vom Wert logisch "0" zum Wert logisch "1" wechselt, wobei die Rückkehr des Steuersignals zum Wert "0" noch keine Zustandsänderung bewirkt. Dieser T-Eingang ist mit dem vom Fahrer betätigbaren Schalter bzw. Taster zum Öffnen und Schließen der Tür über einen Inverter verbunden. Ein zweiter Steuereingang des bistabilen Relais ist als sogenannter S-Eingang ausgebildet, d.h. als Eingang, bei dem ein Steuersignal mit dem Wert "0" einen Setzzustand definiert, der eine ganz bestimmte Stellung des Relaiskontaktes, im vorliegenden Fall die Stellung "AUF", zur Folge hat. Dieser S-Eingang ist mit dem Notschalter verbunden, durch dessen Betätigung der Relaiskontakt unter allen Umständen in die Stellung "AUF" gesetzt wird. In diesem Zustand schließt ein weiterer Relaiskontakt, der die Verbindung zu dem im Bereich der Tür oder des Türantriebs angeordneten Öffnungsschalter herstellt, über den beim Versuch, die Tür von Hand zu öffnen, ein Steuersignal abgegeben wird, das über die beiden Relaiskontakte direkt dem entsprechenden Eingang des Umsteuerventils zugeführt wird, so daß die Öffnungsbewegung der Tür ausgelöst wird. Die Schaltung hat die Eigenschaft einer Sicherheitsschaltung, d.h. es kann vom Öffnungsschalter her niemals eine Schließbewegung der Tür ausgelöst werden.The basic principle of the invention is to provide an emergency control device which is only effective when the emergency unlocking device, for example an emergency valve, is actuated and which then supplies a signal to the reversing valve from the opening switch arranged in the area of the door or the door drive in order to achieve the Valve position in which the opening movement of the door side of the piston of the Compressed air is applied to the drive cylinder. As explained in more detail below on the basis of an exemplary embodiment, the essential component of this emergency control device is a bistable relay which controls the supply of the control signals for the reversing valve via a relay contact which can assume two positions, hereinafter referred to as "OPEN" and "CLOSE" will. This bistable relay has two control inputs. The first control input is designed as a so-called T input, ie a change in state of the switching position of the relay contact is achieved each time the control signal at the input changes from the value logic "0" to the value logic "1", the return of the control signal to the value " 0 "has not yet caused a change of state. This T input is connected to the switch or button that can be actuated by the driver for opening and closing the door via an inverter. A second control input of the bistable relay is designed as a so-called S input, that is to say as an input in which a control signal with the value "0" defines a set state which has a very specific position of the relay contact, in the present case the position "OPEN" Consequence. This S input is connected to the emergency switch, the actuation of which sets the relay contact in the "OPEN" position under all circumstances. In this state, another relay contact closes, which establishes the connection to the opening switch located in the area of the door or the door operator, via which a control signal is emitted when the door is attempted to be opened manually, which is sent directly to the corresponding input via the two relay contacts of the reversing valve is supplied so that the opening movement of the door is triggered. The circuit has the property of a safety circuit, which means that the opening switch can never trigger a closing movement of the door.
Die Betätigung des Notschalters versetzt die Notsteuervorrichtung in einen Bereitschaftszustand, während die eigentliche Auslösung der Öffnungsbewegung dann vom Öffnungsschalter her erfolgt.The actuation of the emergency switch puts the emergency control device into a standby state, while the actual triggering of the opening movement then takes place from the opening switch.
Gemäß einer besonders vorteilhaften Ausführungsform des erfindungsgemäßen Türantriebes kann der Notschalter direkt mit der an sich bekannten Schaltvorrichtung, beispielsweise einem Nothahn, gekoppelt sein, mit dem von der Notentriegelungseinrichtung her die Tür kraftlos geschaltet wird.According to a particularly advantageous embodiment of the door drive according to the invention, the emergency switch can be coupled directly to the switching device known per se, for example an emergency tap, with which the door is switched without power from the emergency unlocking device.
Der Öffnungsschalter, dessen Schließen die eigentliche Öffnungsbewegung der Tür auslöst, kann in sehr verschiedener Weise verwirklicht sein. So kann hier beispielsweise ein bekannter Druckwellenschalter verwendet werden wie er bei den Einklemmsicherungseinrichtungen an Fahrzeugtüren bekannt ist, der in einer sogenannten "fühlenden Kante" an der Tür angeordnet ist.The opening switch, the closing of which triggers the actual opening movement of the door, can be implemented in very different ways. For example, a known pressure wave switch can be used here, as is known from the anti-trap devices on vehicle doors, which is arranged in a so-called "sensing edge" on the door.
Bei Fahrzeugtüren, die einen Türantrieb besitzen, bei dem die Tür an einer Drehsäule angeordnet ist, die über ein Schraubgetriebe in Drehung versetzt wird und bei der beim Auftreten eines Widerstandes eine axiale Verschiebung der Drehsäule ausgelöst wird, die zu einer Hubbewegung der Tür führt (s. DE-PS 2 062 135), kann ein Öffnungsschalter verwendet werden, der bei Auftreten einer solchen Hubbewegung schließt.For vehicle doors that have a door drive, in which the door is arranged on a rotating column, which is set in rotation by a screw mechanism, and in which if resistance occurs, an axial displacement of the rotating column is triggered, which leads to a lifting movement of the door (see DE-PS 2 062 135), an opening switch can be used which closes when such a lifting movement occurs.
Schließlich kann der Öffnungsschalter auch so ausgebildet sein, daß er auf eine geringfügige Öffnungsbewegung der Tür anspricht, wobei es zweckmäßig ist, schaltungsmäßig dafür zu sorgen, daß dieses Ansprechen nur im kraftlosen Zustand der Tür geschehen kann.Finally, the opening switch can also be designed so that it responds to a slight opening movement of the door, it being expedient to ensure in terms of circuitry that this response can only take place when the door is inactive.
Im folgenden wird anhand der beigefügten Zeichnung ein Ausführungsbeispiel für den erfindungsgemäßen Türantrieb näher erläutert.An exemplary embodiment of the door drive according to the invention is explained in more detail below with reference to the accompanying drawing.
Die Zeichnung zeigt in einem Schaltbild eine Ausführungsform eines elektropneumatischen Türantriebs mit einer Notsteuervorrichtung zur Auslösung einer Öffnungsbewegung der Tür, beispielsweise für die Außenschwingtür eines Omnibusses. Die Darstellung entspricht dem Schaltzustand "Tür geöffnet".The drawing shows a circuit diagram of an embodiment of an electropneumatic door drive with an emergency control device for triggering an opening movement of the door, for example for the outer swing door of a bus. The representation corresponds to the switching state "door open".
Die Türbewegung wird durch einen pneumatischen Antriebszylinder 3 bewirkt, in dessen aus einer von einer Druckluftquelle 1 ausgehenden Zuleitung 1.1 und den beiden Zweigleitungen 1.2 und 1.3 bestehendem Speisekreis ein elektrisch und pneumatisch ansteuerbares Umsteuerventil 2 bekannter Bauart angeordnet ist. Dieses Umsteuerventil 2 kann insgesamt drei Ventilstellungen einnehmen. In einer ersten in Fig. 1 dargestellten Ventilstellung wird über die Leitung 1.2 und den Eingang 3.1 des Antriebszylinders die eine Seite des Kolbens 3.3 beaufschlagt, die zu einer Schließbewegung der Tür führt. Wie weiter unten näher erläutert, wird diese Ventilstellung durch elektrische Ansteuerung des Steuereingangs 2.1 erzielt. Bei elektrischer Ansteuerung des Steuereingangs 2.2 wird das Umsteuerventil 2 in eine Ventilstellung geschaltet, bei welcher über die Leitung 1.3 und den Eingang 3.2 am Antriebszylinder die andere Seite des Kolbens 3.3 beaufschlagt wird, was zu einer Öffnungsbewegung der Tür führt.The door movement is effected by a pneumatic drive cylinder 3, in the supply circuit 1.1 of which consists of a
Durch elektrische oder pneumatische Ansteuerung des Steuereingangs 2.3 kann das Ventil auch in eine Ventilstellung gebracht werden, in welcher über die Leitungen 1.2 und 1.3 und die Eingänge 3.1 und 3.2 beide Seiten des Kolbens 3.3 beaufschlagt werden. In dieser Stellung ist der Kolben in einem zwar nicht drucklosen, aber kraftlosen Zustand.By means of electrical or pneumatic control of the control input 2.3, the valve can also be brought into a valve position in which both sides of the piston 3.3 are acted upon via the lines 1.2 and 1.3 and the inputs 3.1 and 3.2. In this position, the piston is in a state that is not depressurized but has no power.
Im dargestellten Ausführungsbeispiel erfolgt die Ansteuerung des Steuereingangs 2.3 pneumatisch über eine von der Druckluftquelle 1 kommende Zuleitung 1.4, in welcher ein Nothahn 4 angeordnet ist. Bei der Betätigung des Nothahns 4 wird also der Kolben 3.3 kraftlos geschaltet.In the illustrated embodiment, the control input 2.3 is actuated pneumatically via a supply line 1.4 coming from the
Eine Rücksetzung des Umsteuerventils 2 in den Zustand "ZU" oder "AUF" ist über den Steuereingang 2.3 nicht möglich, sondern nur durch elektrische Signale über die Steuereingänge 2.1 und 2.2.Resetting the reversing
Diese elektrischen Steuersignale werden über einen ersten Relaiskontakt 5.1 eines bistabilen Relais 5 zugeführt.These electrical control signals are supplied via a first relay contact 5.1 of a bistable relay 5.
Das bistabile Relais 5 besitzt einen Speiseeingang 5.5, der über eine Spannungsanpassungsschaltung 7 und eine Verpolungsschutzdiode D mit einer Spannungsquelle SP verbunden ist. Der Eingang 5.6 des Relais 5 ist mit Masse verbunden.The bistable relay 5 has a supply input 5.5, which is connected to a voltage source SP via a
Das Relais 5 besitzt zwei Steuereingänge. Ein erster Steuereingang 5.3 ist als sogenannter T-Eingang ausgebildet. Dieser Eingang ist einerseits über einen "Pull-up"- Widerstand R2 mit dem Ausgang der Schaltung 7 gekoppelt und andererseits über ein Invertierglied 8, eine weiter unten näher erläuterte Schaltvorrichtung S6 und den vom Fahrer betätigbaren Taster S1 mit der Spannungsquelle SP verbunden. Die Ausbildung des Eingangs 5.3 als T-Eingang hat zur Folge, daß bei einer Zuführung von Steuerimpulsen zu diesem Eingang mittels des Tasters S1 das bistabile Relais hin- und hergesetzt wird, so daß der Relaiskontakt 5.1 fortlaufend in die Stellungen "ZU" (in Fig. 1 dargestellt) oder "AUF" gesetzt wird. Die zum Umsteuerventil 2 führenden Steuersignale werden dann von der Spannungsquelle SP aus über Zuführungsleitungen 6.1 und 6 dem Relaiskontakt 5.1 zugeleitet.Relay 5 has two control inputs. A first control input 5.3 is designed as a so-called T input. On the one hand, this input is coupled to the output of the
Der zweite Steuereingang 5.4 des Relais 5 ist als sogenannter S-Eingang ausgebildet. Dieser Eingang ist über einen "Pull-up"- Widerstand R1 mit dem Ausgang der Schaltung 7 gekoppelt und weiterhin über einen Notschalter S3 mit Masse verbindbar. Die Ausbildung des Eingangs 5.4 als S-Eingang bewirkt, daß beim Schließen des Notschalters S3 ein Dauersignal auf diesen Eingang gelangt, welches bewirkt, daß der erste Relaiskontakt 5.1 in die Stellung "AUF" gesetzt wird. Gleichzeitig schließt in dieser Stellung ein zweiter Relaiskontakt 5.2, der die zum ersten Relaiskontakt 5.1 führende Spannungszuleitung 6 über eine weitere Zuführungsleitung 6.2, einen Öffnungsschalter S2 und einen zusätzlichen Endschalter S4 mit der Spannungsquelle SP verbindet. Der Öffnungsschalter S2 ist als Endschalter ausgebildet und kann mit dem Türantrieb etwa in der Weise gekoppelt sein, daß er auf eine Hubbewegung der Drehsäule DR schließt und auf diese Weise den Steuereingang 2.2 des Umsteuerventils 2 über die Relaiskontakte 5.1 und 5.2 sowie den bei öffnender Tür schließenden zusätzlichen Endschalter S4 mit der Spannungsquelle SP verbindet. Aufgrund dieser Verbindung wird die Öffnungsbewegung der Tür eingeleitet.The second control input 5.4 of the relay 5 is designed as a so-called S input. This input is coupled via a "pull-up" resistor R1 to the output of the
Aufgrund der dargestellten Ausbildung schließt also der Öffnungsschalter S2, wenn von Hand eine heftige Öffnungsbewegung auf die Tür ausgeübt wird, die zu einer Hubbewegung der Drehsäule DR führt. Voraussetzung hierfür ist, daß zuvor der Nothahn 4 derart betätigt wurde, daß sich das Umsteuerventil 2 in der Stellung befindet, in welcher der Kolben 3.3 im kraftlosen Zustand ist, in welchem aufgrund des Druckausgleichs die Drehsäule DR abgesenkt ist und der Notschalter S3 kurzzeitig geschlossen war.Because of the design shown, the opening switch S2 closes when a violent opening movement is exerted on the door by hand, which leads to a lifting movement of the rotating column DR. The prerequisite for this is that the
Selbstverständlich kann der Öffnungsschalter S2, wie bereits erwähnt, auch als Druckwellenschalter ausgebildet und einer fühlenden Kante der Tür angeordnet sein.As already mentioned, the opening switch S2 can of course also be designed as a pressure wave switch and arranged on a sensing edge of the door.
Der Notschalter S3 ist mechanisch mit dem Nothahn 4 gekoppelt. Dies kann beispielsweise in der Weise geschehen, daß eine Betätigung des Notschalters S3 ausgelöst wird, wenn der Nothahn 4 in die Alarmstellung gebracht wird, in welcher der Steuereingang 2.3 des Umsteuerventils 2 angesteuert wird. Der Nothahn 4 wird dann automatisch wieder in die Neutralstellung zurückgeführt, damit über den Steuereingang 2.2 des Umsteuerventils 2 beim Schließen des Öffnungsschalters S2 die Öffnungsbewegung der Tür eingeleitet wird.The emergency switch S3 is mechanically coupled to the
Es sind aber auch andere Kopplungsarten möglich und insbesondere kann der Notschalter S3 auch in einer Schaltungseinrichtung liegen, durch welche das dem Steuereingang 2.3 des Umsteuerventils 2 zugeführte Signal elektrisch erzeugt wird.However, other types of coupling are also possible, and in particular the emergency switch S3 can also be located in a circuit device by means of which the Control input 2.3 of the reversing
In dem in der Zeichnung dargestellten Ausführungsbeispiel sind noch zwei weitere Sicherheitsvorrichtungen vorgesehen, die im folgenden erläutert werden:In the exemplary embodiment shown in the drawing, two further safety devices are provided, which are explained below:
So ist das zwischen den Taster S1 und das Invertierglied 8 eingeschaltete Schaltglied S6 Teil einer Vorrichtung, die verhindert, daß die Tür vom Fahrer geöffnet werden kann, wenn die Geschwindigkeit des Fahrzeuges noch oberhalb eines vorgegebenen Grenzwertes beispielsweise von 5 km/h liegt. Hierzu ist das Schaltglied S6 mit einer Ansteuervorrichtung 9.1 verbunden, die einen die Fahrzeuggeschwindigkeit abtastenden Sensor 9.2 enthält. Oberhalb der vorgegebenen Fahrzeuggeschwindigkeit öffnet das Schaltglied S6 und ein Öffnen der Tür ist nicht möglich.Thus, the switching element S6 switched on between the button S1 and the inverting element 8 is part of a device which prevents the door from being opened by the driver if the speed of the vehicle is still above a predetermined limit value, for example 5 km / h. For this purpose, the switching element S6 is connected to a control device 9.1, which contains a sensor 9.2 sensing the vehicle speed. Switching element S6 opens above the specified vehicle speed and the door cannot be opened.
Eine zweite Sicherheitsvorrichtung besitzt einen Schalter S7, über den der Steuereingang 5.4 des Relais 5 mit Masse verbindbar ist und somit ein Steuersignal erhält, durch welches der Relaiskontakt 5.1 in die "Auf"-Stellung geschaltet wird. Der Schalter S7 wird angesteuert durch einen Drucksensor 10, der den Druck in der Druckluftleitung 1.1 abfühlt. Der Schalter S7 schließt, wenn dieser Druck unter einen vorgegebenen Wert absinkt, wodurch verhindert wird, daß gegebenenfalls undefinierte Zustände auftreten.A second safety device has a switch S7, via which the control input 5.4 of the relay 5 can be connected to ground and thus receives a control signal by means of which the relay contact 5.1 is switched to the "open" position. The switch S7 is controlled by a
Der Öffnungsschalter S2 kann auch als Endschalter ausgebildet sein, der dann anspricht, wenn es gelingt, die Tür von Hand um einen Spalt vorgegebener Weite zu öffnen. In einem solchen Fall hat es sich allerdings als zweckmäßig erwiesen, wenn dann der Öffnungsschalter in einem Schaltkreis liegt, der nur dann aktivierbar ist, wenn sich der Antrieb in dem oben erwähnten kraftlosen Zustand befindet.The opening switch S2 can also be designed as a limit switch which responds when the door can be opened manually by a gap of a predetermined width. In such a case, however, it turned out to be Appropriately proven if the opening switch is in a circuit that can only be activated when the drive is in the above-mentioned powerless state.
Claims (9)
- Electropneumatic door drive in vehicles for conveying passengers, in particular for external swing doors of buses, having at least one pneumatic drive cylinder (3) with pistons (3.3) which can be acted on on both sides, which drive cylinder (3) can be connected by a change-over valve (2) to a compressed air source (1), the change-over valve (2) having a first electrically actuable control input (2.1) for achieving a valve position in which the side of the piston (3.3) which brings about the closing movement of the door is acted on, and a second electrically actuable control input (2.2) for achieving a valve position in which the side of the piston (3) which brings about an opening movement of the door is acted on, and a third electrically or pneumatically actuable control input (2.3) for achieving a valve position in which both sides of the piston (3.3) are acted on in order to produce a powerless state, and in which door drive an emergency unlocking device is provided from which the third control input (2.3) of the change-over valve (2) can be actuated, characterized in that the emergency unlocking device has an emergency control device for triggering an opening movement of the door in the event of an attempt to open it manually, with a bistable relay (5) which has a first relay contact (5.1) which in a "closed" position connects the first control input (2.1) and in an "open" position connects the second control input (2.2) of the change-over valve (2) to a voltage feedline (6) which can be connected to a pole of a voltage source (SP) on the one hand via a switch (S1) which can be actuated by the driver and on the other hand via a second relay contact (5.2) which is open in the "closed" position of the first relay contact (5.1) and is closed in the "open" position of the first relay contact (5.1) and via an opening switch (S2) which is arranged in the region of the door or of the door drive, the opening switch (S2) being arranged in such a way that it closes in the event of an attempt to open the door manually, and the relay (5) has two control inputs, the first (5.3) of which is constructed as a T-input and can be fed with control impulses via the switch (S1) which can be actuated by the driver whilst the second (5.4) is constructed as an S-input and can be fed with a control signal via an emergency switch (S3), by means of which control signal the first relay contact (5.1) is switched to the "open" position.
- Door drive according to Claim 1, characterized in that the emergency switch (S3) is coupled to a switching device (4) by means of which the third control input (2.3) of the change-over valve (2) can be actuated.
- Door drive according to Claim 2, characterized in that the switching device is constructed as an emergency actuator (4) via which the third control input (2.3) of the change-over valve (2) can be connected pneumatically to the compressed air source (1).
- Door drive according to Claim 3, characterized in that in a change-over valve (2) in which, in the case of actuation of the third control input (2.3) switching back into one of the two other valve positions is only possible via the first or second control input (2.1, 2.2), the activation of the emergency switch (S3) takes place by actuating the emergency actuator (4) which is automatically returned to the neutral position.
- Door drive according to one of Claims 1 to 4, characterized in that the opening switch (S2) is constructed as a limit switch which responds to a lifting movement of the door.
- Door drive according to one of Claims 1 to 4, characterized in that the opening switch (S2) is constructed as a pressure wave switch which is arranged in a sensing edge of the door.
- Door drive according to one of Claims 1 to 7, characterized in that a further limit switch (S4) is arranged in series with the opening switch (S2) and opens when the door is closed.
- Door drive according to Claims 1 to 7, characterized in that the emergency switch (S3) is located in a circuit which contains a switch (S7) which is coupled to a pressure sensor (10) in such a way that when the pressure in the compressed airline falls below a predetermined pressure the switching position of the switch (S7) is changed in such a way that the S input (5.4) of the relay (5) is fed a control signal by means of which the first relay contact (5.1) is switched into the "on" position.
- Door drive according to one of Claims 1 to 9, characterized in that an actuable switching element (S6) which is connected to an actuation device (9.1-9.2) is arranged in at least one of the control circuits of the bistable relay (5), which actuation device (9.1-9.2) outputs, when a predetermined value of the vehicle speed is reached, a control signal which opens the switching element (S6) and by means of which this control circuit is disconnected.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT91102236T ATE101232T1 (en) | 1990-03-10 | 1991-02-18 | ELECTROPNEUMATIC DOOR DRIVE IN VEHICLES FOR PASSENGER TRANSPORTATION. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4007700A DE4007700A1 (en) | 1990-03-10 | 1990-03-10 | ELECTROPNEUMATIC DOOR DRIVE IN VEHICLES FOR PASSENGER TRANSPORT |
DE4007700 | 1990-03-10 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0446651A2 EP0446651A2 (en) | 1991-09-18 |
EP0446651A3 EP0446651A3 (en) | 1992-04-22 |
EP0446651B1 true EP0446651B1 (en) | 1994-02-02 |
Family
ID=6401929
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP91102236A Expired - Lifetime EP0446651B1 (en) | 1990-03-10 | 1991-02-18 | Electro-pneumatic actioning system for passenger vehicle door |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0446651B1 (en) |
AT (1) | ATE101232T1 (en) |
DE (2) | DE4007700A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111021870A (en) * | 2019-11-25 | 2020-04-17 | 瑞立集团瑞安汽车零部件有限公司 | Vehicle door control module, control method and vehicle |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4120837A1 (en) * | 1991-06-25 | 1993-01-07 | Daimler Benz Ag | CIRCUIT ARRANGEMENT FOR THE EMERGENCY OPENING OF FOREIGN POWERED DOORS |
US5434487A (en) * | 1993-05-20 | 1995-07-18 | General Motors Corporation | Vehicle door manual to power move |
AT409158B (en) * | 1999-11-26 | 2002-06-25 | Hoerbiger Hydraulik | HYDRAULIC ACTUATING ARRANGEMENT |
TR200504838A2 (en) * | 2005-12-05 | 2006-08-21 | Temsa Sanayi̇ Ve Ti̇caret A.Ş. | Pneumatic arrangement for double-leaf bus doors. |
CN114482755A (en) * | 2022-01-17 | 2022-05-13 | 中车青岛四方机车车辆股份有限公司 | Cab door control circuit, cab door control method and vehicle |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2810571A (en) * | 1952-12-10 | 1957-10-22 | Paul R Ferguson | Door actuator |
DE2928801C2 (en) * | 1979-07-17 | 1986-01-30 | Wabco Westinghouse Fahrzeugbremsen GmbH, 3000 Hannover | Door operating system |
DE3122135A1 (en) * | 1981-05-08 | 1982-12-23 | Robert Bosch Gmbh, 7000 Stuttgart | Door-actuating device |
DE3124398A1 (en) * | 1981-06-22 | 1982-12-30 | Wabco Westinghouse Fahrzeugbremsen GmbH, 3000 Hannover | ELECTROPNEUMATIC DOOR CONTROL |
DE3313310A1 (en) * | 1983-04-13 | 1984-10-18 | Dowaldwerke Adolph Dowald GmbH & Co KG, 2800 Bremen | Arrangement for opening especially pneumatically driven doors of rail-borne passenger vehicles |
DE3420631A1 (en) * | 1984-06-02 | 1985-12-05 | Wabco Westinghouse Fahrzeugbremsen GmbH, 3000 Hannover | DOOR OPERATING SYSTEM |
DE3702710C2 (en) * | 1987-01-30 | 1996-04-11 | Wabco Gmbh | Power operated door locking system |
-
1990
- 1990-03-10 DE DE4007700A patent/DE4007700A1/en not_active Withdrawn
-
1991
- 1991-02-18 EP EP91102236A patent/EP0446651B1/en not_active Expired - Lifetime
- 1991-02-18 DE DE91102236T patent/DE59100966D1/en not_active Expired - Fee Related
- 1991-02-18 AT AT91102236T patent/ATE101232T1/en not_active IP Right Cessation
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111021870A (en) * | 2019-11-25 | 2020-04-17 | 瑞立集团瑞安汽车零部件有限公司 | Vehicle door control module, control method and vehicle |
CN111021870B (en) * | 2019-11-25 | 2023-10-20 | 瑞立集团瑞安汽车零部件有限公司 | Vehicle door control module, control method and vehicle |
Also Published As
Publication number | Publication date |
---|---|
DE59100966D1 (en) | 1994-03-17 |
ATE101232T1 (en) | 1994-02-15 |
EP0446651A3 (en) | 1992-04-22 |
DE4007700A1 (en) | 1991-09-12 |
EP0446651A2 (en) | 1991-09-18 |
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