EP2212504B1 - Drive system for pivotal and/or slidable doors or for entry and exit facilities with improved position acquisition - Google Patents

Drive system for pivotal and/or slidable doors or for entry and exit facilities with improved position acquisition Download PDF

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Publication number
EP2212504B1
EP2212504B1 EP08853085.2A EP08853085A EP2212504B1 EP 2212504 B1 EP2212504 B1 EP 2212504B1 EP 08853085 A EP08853085 A EP 08853085A EP 2212504 B1 EP2212504 B1 EP 2212504B1
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EP
European Patent Office
Prior art keywords
deboarding
boarding
door
ramp
absolute value
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.)
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Application number
EP08853085.2A
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German (de)
French (fr)
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EP2212504A1 (en
Inventor
Alfons Harding
Klaus Meyerrose
Dirk MÜLLER
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.)
Gebrueder Bode GmbH and Co KG
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Gebrueder Bode GmbH and Co KG
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Priority to PL08853085T priority Critical patent/PL2212504T3/en
Publication of EP2212504A1 publication Critical patent/EP2212504A1/en
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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
    • E05F15/60—Power-operated mechanisms for wings using electrical actuators
    • E05F15/603—Power-operated mechanisms for wings using electrical actuators using rotary electromotors
    • E05F15/611—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for swinging wings
    • E05F15/614—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for swinging wings operated by meshing gear wheels, one of which being mounted at the wing pivot axis; operated by a motor acting directly on the wing pivot axis
    • 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
    • E05Y2201/00—Constructional elements; Accessories therefore
    • E05Y2201/20—Brakes; Disengaging means, e.g. clutches; Holders, e.g. locks; Stops; Accessories therefore
    • E05Y2201/23—Actuation thereof
    • E05Y2201/244—Actuation thereof by manual operation
    • 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
    • E05Y2201/00—Constructional elements; Accessories therefore
    • E05Y2201/40—Motors; Magnets; Springs; Weights; Accessories therefore
    • E05Y2201/43—Motors
    • E05Y2201/434—Electromotors; Details thereof
    • E05Y2400/3013—
    • 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
    • E05Y2400/00—Electronic control; Power supply; Power or signal transmission; User interfaces
    • E05Y2400/10—Electronic control
    • E05Y2400/30—Electronic control of motors
    • E05Y2400/32—Position control, detection or monitoring
    • E05Y2400/322—Position control, detection or monitoring by using absolute position sensors
    • E05Y2400/326—Position control, detection or monitoring by using absolute position sensors of the angular type
    • 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
    • E05Y2600/00—Mounting or coupling arrangements for elements provided for in this subclass
    • E05Y2600/10—Adjustable or movable
    • E05Y2600/20—Adjustable or movable characterised by the movement transmission
    • 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
    • E05Y2800/00—Details, accessories and auxiliary operations not otherwise provided for
    • E05Y2800/25—Emergency conditions
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/18—Mechanical movements
    • Y10T74/18568—Reciprocating or oscillating to or from alternating rotary

Definitions

  • the invention relates generally to an entry / exit device with a drive system and at least one pivotally and / or slidably mounted door, ramp, step or the like of a vehicle for passenger transport, as well as a vehicle equipped therewith for passenger transport.
  • a drive system of this type generally comprises at least one actuator or a drive motor and a mechanism and / or a gear driven therefrom in order to effect the pivoting movement of the door, ramp, tread or the like. It is known to detect the pivotal movement of the mechanism or the transmission, for example by means of a potentiometer. Such a Potentiometer upset has proven in practice as not sufficiently wear and trouble-prone to meet the high safety requirements in passenger transport.
  • a sliding door drive assembly for a motor vehicle having a sliding door and a transmission apparatus operatively connected to a motor for transmitting a rotational force of an output shaft.
  • a cable drum is firmly attached to an output shaft and rotates with it.
  • First and second cables are wound over the cable drum in opposite directions. The first cable moves from the cable drum forward along the sliding door. The second cable moves backwards from the cable drum along the sliding door. Guides disposed tangentially out of the cable drum around the first and second cables from the cable drum along a path minimize frictional forces.
  • Front and rear assemblies are mounted to the motor vehicle and operatively connected to the first and second cables between the sliding door drive assembly and the sliding door for tensioning the first and second cables.
  • a position sensor is mounted contactlessly with respect to the cable drum and another position sensor is provided at the other end of the drive shaft via a planetary gear.
  • This object is achieved by an entry / exit system according to claim 1 and a vehicle for passenger transport according to claim 9.
  • Advantageous embodiments are the subject of the dependent claims.
  • the inventive entry / exit device with the drive system and at least one pivotally mounted door, ramp, step or the like is intended for a vehicle for passenger transport.
  • it is a single or multi-leaf exterior or interior swing door or a folding door or a sliding door, as used in the entry and exit area of buses, rail vehicles and the like.
  • Swing doors are for example from the disclosure DE 202006005485 U1 .
  • DE 202005015166 U1 the same applicant.
  • the drive system according to the invention is also advantageously used in a swing-sliding door combination, as for example from DE 202007009719 U1 the same applicant is known. Furthermore, it may be a parallel to the vehicle floor mounted and extendable ramp, as for example from or DE 202004007704 U1 or the DE 202005011221 U1 the same applicant is known. A pivotable kick is for example from the DE 202006002455 U1 known.
  • the drive system comprises at least one actuator, for example a hydraulic or air-pressure-operated actuating cylinder, or a drive motor and a mechanism driven therefrom and / or a gear to effect the pivoting movement of the door, ramp, tread or the like.
  • an 'absolute encoder for example an analog rotary encoder, is provided for detecting a momentary adjustment during the pivoting movement.
  • engages the absolute encoder a rotary or pivoting movement of a component of the transmission or the mechanism, which serve according to the invention for transmitting the rotational movement of the actuator or the drive motor to the door, ramp or step, etc.
  • the absolute encoder is flanged to an output shaft of a reduction gear.
  • the Absolutwergeber provides by design a clear, the respective instantaneous position of the pivoting movement corresponding signal.
  • the drive system according to the invention is characterized in that an evaluation unit is provided, which is designed to compare the instantaneous position with at least one reference position, which is stored in a non-volatile memory of the evaluation unit, to one of them, that is dependent on the comparison result output signal produce.
  • the reference position may be an end position, such as the open or closed door, the retracted or extended ramp, or the swing in or out, etc.
  • the drive system can be produced thereby cheaper.
  • the instantaneous position of the door or the like is always - also after a power failure - known by the absolute encoder and to compare with the non-volatile stored reference values, so that it requires no initialization process after a power failure to the actual To determine instant employment.
  • an adjustment that may be necessary only the replacement of the at least one reference value stored in the non-volatile memory is required, without the need for time-consuming mechanical adjustment, which is thus associated with high downtimes.
  • the output signal dependent on the result of the comparison between instantaneous position and reference position is fed in one embodiment to a monitoring device which determines the corresponding door, step or ramp position or reaching an associated end position on a system panel, for example, in the cab, brings the vehicle for display.
  • the output signal is used to control the drive motor or actuator to achieve, for example, upon reaching a reference position, a shutdown of the drive motor or actuator.
  • Endabschaltern can thus be omitted.
  • the output signal output by the evaluation unit for further processing by a motor control or a monitoring device can be analog or digital, for example a serial bit pattern. To increase the susceptibility to interference, a digital signal is output.
  • the evaluation unit is designed so that the output signal for the case that the instantaneous position corresponds to one of the reference positions corresponds to a defined, preferably digital, signal value.
  • a limit switch is simulated, which assumes a defined switching state when reaching an end position.
  • the output signal can advantageously be further processed by a known monitoring device adapted to the use of limit switches.
  • the absolute encoder detects in a further advantageous embodiment, the pivoting movement contactless. This can increase the susceptibility to interference.
  • the absolute value encoder works according to an optical or magnetic principle.
  • the absolute encoder generates a digital signal for evaluation by the evaluation unit.
  • Absolute encoders indicate a specific coded numerical value (code value) for each angular position. This code value is available immediately after switching on, even without movement of the encoder axis.
  • code value coded numerical value
  • the transmission of the absolute values from the encoder to the evaluation unit takes place, for example, serially. in this connection
  • special protocols such as SSI, PROFIBUS-DP or EnDat (Heidenhain) are used. Due to the serial communication, other data can be transferred in addition to the current status.
  • Multi-turn optical encoders generally include a plurality of code disks internally connected via a transmission.
  • the absolute encoder is flanged to a pivoting movement of the door, ramp, kick or the like specifying pin.
  • comparatively less expensive single-turn encoders can be used.
  • the immediate location of the encoder on the moving element, i. the door, ramp, tread, etc. achieved a very accurate and reproducible Stellunpser linear and thus possibly controlling the movement, so that the game can be compensated in the driving force transmitting mechanism or transmission.
  • any material fractions can be detected and reported within the mechanics or the transmission, because, for example, despite a prolonged activation of the actuator or drive motor reaching the reference position is not detected by the encoder.
  • the evaluation unit is programmable.
  • at least the non-volatile memory is programmable to receive the reference values, for example, the non-volatile memory is an EEPROM or NV-RAM.
  • the reference values for an adjustment can be exchanged particularly easily.
  • the evaluation unit is programmed via a BUS system, such as the CAN bus.
  • the mechanism or the transmission is not self-locking.
  • a manual operation of the entry / exit device is always guaranteed due to the lack of self-locking in case of emergency, it must be repealed only the blocking effect of an additionally existing for safety reasons blocking device. This leads to a high degree of security.
  • This type of drive is particularly suitable for combination with an absolute value transmitter and an associated evaluation unit, since the door position can be detected at any time even after manual actuation of the entry / exit device.
  • the transmission comprises a first reduction gear, a second reduction gear and a controllable clutch between the first reduction gear.
  • the fact that the entire reduction gear is composed of two separable by a clutch reduction gears, can be achieved with a suitable choice of the reduction ratio of the two reduction gear that after disengagement of the clutch, a manual operation of the entry / exit device against the now reduced self-locking is possible.
  • This type of drive is particularly suitable for combination with an absolute value transmitter and an associated evaluation unit, since the door position can be detected at any time even after manual actuation of the entry / exit device.
  • the invention further relates to a suitably equipped vehicle for passenger transport.
  • Fig. 1 shows a designed as a compact drive device 20 for a passenger door in which within a slender, tubular housing 22 in the axial direction one behind the other an electric drive motor 24 and a reduction gear 26, shown as a three-part planetary gear, are arranged.
  • the drive motor 24 is followed by a brake 28, which is also housed within the housing 22 and can be designed as a spring-engaging and electromagnetically releasable "low-active brake".
  • electrical connections 30 of the drive motor 24 are shown.
  • the reduction gear 26 is not designed to be self-locking.
  • the drive device 20 is preferably housed in a rotary column, not shown.
  • An unrecognizable output element of the drive motor 24 is connected to a likewise not recognizable input element of the reduction gear 26, whose output element 32 is connected to an input element or an actuator of an input / output device, not shown.
  • the output element 32 can be connected, for example, to a known lifting / rotating unit whose output element is connected to the actuating devices for the entry / exit device, for example a passenger door.
  • an absolute encoder 34 is arranged on the output element 32 of the reduction gear 26, by means of which the instantaneous position of the output shaft designed as output element 32 is detected and output as a value to an evaluation unit, not shown, which compares the value with the value of a stored reference position.
  • Momentabstützungsvorraum 40 for coupling the drive device 20 with the rotary column, not shown recognizable.
  • Fig. 2 shows a drive device constructed as a compact drive, for example, for a passenger door, in which an electric drive motor 1, a first reduction gear 2, a controllable clutch 3.3, 3.4 and a second reduction gear 4 are arranged within a slender, tubular housing in the axial direction one behind the other: More precisely said the first reduction gear 2 with the drive motor 1 and the associated first coupling half 3.3 are connected together axially by spring force of a compression spring 3.1 with the second coupling half 3.4 and the second reduction gear 4 by axial displacement or separable.
  • the drive motor 1 with the first reduction gear 2 is slidably mounted in the tubular housing 9.
  • a Bowden cable 14 biases the compression spring 3.1 and shifts the drive motor 1, the first reduction gear 2 and the first coupling half 3.3 axially in the tubular housing 9, whereby the power transmission to the clutch 3.3, 3.4 is disconnected. Furthermore, an absolute encoder 7 is arranged on the output element 4.1 of the second reduction gear 4, by means of which the instantaneous position of the output shaft formed as output element 4.1 is detected and output as a value to an evaluation unit, not shown, which compares the value with the value of a stored reference position.
  • the output shaft 4.1 of the entire drive device is connected in a manner not specifically shown with the actuators, such as a passenger door.

Description

Die Erfindung betrifft allgemein eine Ein-/Ausstiegseinrichtung mit einem Antriebssystem und wenigstens einer verschwenkbar und/oder verschiebbar gelagerten Tür, Rampe, Tritt oder Dergleichen eines Fahrzeugs zur Personenbeförderung, sowie ein damit ausgerüstetes Fahrzeug zur Personenbeförderung. Ein Antriebssystem dieser Gattung umfasst im Allgemeinen wenigstens einen Aktuator oder einen Antriebsmotor und eine davon angetriebenen Mechanik und/oder ein Getriebe, um die Verschwenkbewegung der Tür, Rampe, Tritt oder Dergleichen zu bewirken. Es ist bekannt die Schwenkbewegung der Mechanik oder des Getriebes beispielsweise mittels eines Potentiometerabgriffs zu erfassen. Ein derartiger Potentiometeraufbau hat sich in der Praxis als nicht ausreichend verschleißarm und störungsunanfällig erwiesen, um den hohen Sicherheitsanforderungen bei der Personenbeförderung zu genügen. Es ist ferner bekannt, die Schwenk- beziehungsweise Schiebbewegung mittels an den Endstellungen auslösenden Schaltkontakten zu steuern oder wenigstens zu überwachen. Zwar lässt sich je nach Schaltkontaktaufbau und auch mit Hilfe redundanter Komponenten ein hohes Maß an Zuverlässigkeit erreichen, nachteilig dabei ist, dass mit der einmalig vorgenommenen Montage und Justage diese Endstellungen festliegen. Eine Nachjustage beispielsweise bei der Endmontage der Ein-/Ausstiegseinrichtung in ein Fahrzeug zur Personenbeförderung hat sich aufgrund der vergleichsweise schlechten Zugänglichkeit der Schaltkontakte als sehr zeitaufwendig erwiesen. Diese schlechte Zugänglichkeit beruht einerseits auf der gewünschten Kompaktheit derartiger Antriebe und andererseits darauf, dass diese Schaltkontakte in der Regel unmittelbar an der bewegten Tür, Rampe, Tritt usw., beispielsweise an deren zugehörigen Schwenkzapfen, und nicht an der antreibenden Mechanik angeordnet sind, um so sicher zu sein, dass sich eben diese bewegten Elemente, wie Tür, Rampe, Tritt usw. tatsächlich in dem durch den Schaltkontaktzustand wiedergegebenen Zustand, beispielsweise offen oder geschlossen, befinden. Zudem hat sich herausgestellt, dass im Betrieb aufgrund von Verschleiß und dem damit einhergehenden zunehmenden Spiel zwischen den mechanisch wechselwirkenden Komponenten es oft im Laufe der Nutzungsdauer des Fahrzeugs einer Nachjustierung bedarf.The invention relates generally to an entry / exit device with a drive system and at least one pivotally and / or slidably mounted door, ramp, step or the like of a vehicle for passenger transport, as well as a vehicle equipped therewith for passenger transport. A drive system of this type generally comprises at least one actuator or a drive motor and a mechanism and / or a gear driven therefrom in order to effect the pivoting movement of the door, ramp, tread or the like. It is known to detect the pivotal movement of the mechanism or the transmission, for example by means of a potentiometer. Such a Potentiometeraufbau has proven in practice as not sufficiently wear and trouble-prone to meet the high safety requirements in passenger transport. It is also known to control or at least monitor the pivoting or sliding movement by means of triggering at the end positions switching contacts. Although it is possible to achieve a high degree of reliability, depending on the switching contact structure and also with the aid of redundant components, it is disadvantageous that these end positions are fixed with the one-time installation and adjustment. A readjustment example, in the final assembly of the entry / exit device in a vehicle for passenger transport has proved to be very time consuming due to the relatively poor accessibility of the switch contacts. This poor accessibility is based, on the one hand, on the desired compactness of such drives and, on the other hand, that these switching contacts are usually arranged directly on the moving door, ramp, footstep, etc., for example on their associated pivot pins and not on the driving mechanism To be sure that just these moving elements, such as door, ramp, tread, etc. are actually in the state represented by the switching contact state, for example, open or closed. In addition, it has been found that in operation due to wear and the associated increasing play between the mechanically interacting components often requires a readjustment in the course of the useful life of the vehicle.

Aus der US 2007/0194600 ist eine Schiebetür-Antriebsanordnung für ein Kraftfahrzeug mit einer Schiebetür und eine Übertragungsvorrichtung bekannt, die operativ mit einem Motor zum Übertragen einer Drehkraft einer Ausgangswelle verbunden ist. Eine Seiltrommel ist fest mit einer Ausgangswelle befestigt und dreht sich mit dieser. Erste und zweite Kabel werden über die Seiltrommel in entgegengesetzten Richtungen gewickelt. Das erste Kabel bewegt sich von der Kabeltrommel nach vorne entlang der Schiebetür. Das zweite Kabel bewegt sich von der Kabeltrommel entlang der Schiebetür rückwärts. Führungen angeordnet tangential aus der Kabeltrommel um das erste und zweite Kabel von der Kabeltrommel entlang einer Bahn minimieren die Reibungskräfte. Vordere und hintere Anordnungen sind an dem Kraftfahrzeug montiert und operativ mit dem ersten und zweiten Kabel zwischen der Schiebetür-Antriebsanordnung und der Schiebetür zum Spannen der ersten und zweiten Kabel verbunden. Ein Positionssensor ist berührungslos gegenüber der Seiltrommel angebracht und ein weiterer Positionsgeber ist am anderen Ende der Antriebwelle über ein Planetengetriebe vorgesehen.From the US 2007/0194600 For example, there is known a sliding door drive assembly for a motor vehicle having a sliding door and a transmission apparatus operatively connected to a motor for transmitting a rotational force of an output shaft. A cable drum is firmly attached to an output shaft and rotates with it. First and second cables are wound over the cable drum in opposite directions. The first cable moves from the cable drum forward along the sliding door. The second cable moves backwards from the cable drum along the sliding door. Guides disposed tangentially out of the cable drum around the first and second cables from the cable drum along a path minimize frictional forces. Front and rear assemblies are mounted to the motor vehicle and operatively connected to the first and second cables between the sliding door drive assembly and the sliding door for tensioning the first and second cables. A position sensor is mounted contactlessly with respect to the cable drum and another position sensor is provided at the other end of the drive shaft via a planetary gear.

Es ist daher Aufgabe der vorliegenden Erfindung, eine Ein-/Ausstiegseinrichtung mit einem Antriebssystem und wenigstens einer verschwenkbar und/oder verschiebbar gelagerten Tür, Rampe, Tritt oder Dergleichen eines Fahrzeugs zur Personenbeförderung bereitzustellen, bei dem die Justierung der Positionserfassung vereinfacht erfolgen kann. Diese Aufgabe wird durch ein Ein-/Ausstiegsystem gemäß Anspruch 1 sowie ein Fahrzeug zur Personenbeförderung gemäß Anspruch 9 gelöst. Vorteilhafte Ausgestaltungen sind Gegenstand der abhängigen Ansprüche.It is therefore an object of the present invention to provide an entry / exit device with a drive system and at least one pivotally and / or slidably mounted door, ramp, tread or the like of a vehicle for passenger transport, in which the adjustment of the position detection can be simplified. This object is achieved by an entry / exit system according to claim 1 and a vehicle for passenger transport according to claim 9. Advantageous embodiments are the subject of the dependent claims.

Die erfindungsgemäße Ein-/Ausstiegseinrichtung mit dem Antriebssystem und wenigstens einer verschwenkbar gelagerten Tür, Rampe, Tritt oder Dergleichen ist für ein Fahrzeug zur Personenbeförderung bestimmt. Beispielswiese handelt es sich um eine ein- oder mehrflügelige Außen- oder Innenschwenktür oder eine Falttür oder eine Schiebetür, wie sie im Ein- und Ausstiegsbereich von Bussen, Schienenfahrzeugen und Ähnlichem verwendet werden. Schwenktüren sind beispielsweise aus den Offenlegung DE 202006005485 U1 , DE 202005015169 U1 , DE 202005015168 U1 , DE 202005015166 U1 derselben Anmelderin bekannt. Da die Erfindung nicht hinsichtlich der Art der verwendeten Tür und deren aufhängungsbedingten Bewegungsrichtung zur Erreichung des geöffneten und geschlossenen Zustands beschränkt ist, findet das erfindungsgemäße Antriebssystem auch vorteilhaft Verwendung bei einer Schwenk-Schiebtürkombination, wie sie zum Beispiel aus der DE 202007009719 U1 derselben Anmelderin bekannt ist. Ferner kann es sich um eine parallel zum Fahrzeugboden angebrachte und ausfahrbare Rampe handeln, wie sie zum Beispiel aus der oder der DE 202004007704 U1 oder der DE 202005011221 U1 derselben Anmelderin bekannt ist. Ein verschwenkbarer Tritt ist beispielsweise aus der DE 202006002455 U1 bekannt. Das erfindungsgemäße Antriebssystem umfasst wenigstens einen Aktuator, beispielsweise einen hydraulischen oder luftdruckbetriebenen Stellzylinder, oder einen Antriebsmotor und eine davon angetriebenen Mechanik und/oder ein Getriebe, um die Verschwenkbewegung der Tür, Rampe, Tritt oder Dergleichen zu bewirken. Erfindungsgemäß ist ein' Absolutwertgeber, beispielsweise ein analoger Drehgeber, zur Erfassung einer Momentanstellung bei der Verschwenkbewegung vorgesehen. In einer Ausgestaltung greift der Absolutwertgeber eine Dreh- oder Verschwenkbewegung einer Komponente des Getriebes oder der Mechanik an, die erfindungsgemäß zur Übertragung der Drehbewegung des Aktuators oder des Antriebsmotors auf die Tür, Rampe oder den Tritt usw. dienen. Beispielsweise ist der Absolutwertgeber an einer Abtriebswelle eines Untersetzungsgetriebes angeflanscht. Der Absolutwergeber liefert konstruktionsbedingt ein eindeutiges, der jeweiligen Momentanstellung der Verschwenkbewegung entsprechendes Signal.The inventive entry / exit device with the drive system and at least one pivotally mounted door, ramp, step or the like is intended for a vehicle for passenger transport. For example, it is a single or multi-leaf exterior or interior swing door or a folding door or a sliding door, as used in the entry and exit area of buses, rail vehicles and the like. Swing doors are for example from the disclosure DE 202006005485 U1 . DE 202005015169 U1 . DE 202005015168 U1 . DE 202005015166 U1 the same applicant. Since the invention is not limited in terms of the type of door used and their suspension-related direction of movement to achieve the open and closed state, the drive system according to the invention is also advantageously used in a swing-sliding door combination, as for example from DE 202007009719 U1 the same applicant is known. Furthermore, it may be a parallel to the vehicle floor mounted and extendable ramp, as for example from or DE 202004007704 U1 or the DE 202005011221 U1 the same applicant is known. A pivotable kick is for example from the DE 202006002455 U1 known. The drive system according to the invention comprises at least one actuator, for example a hydraulic or air-pressure-operated actuating cylinder, or a drive motor and a mechanism driven therefrom and / or a gear to effect the pivoting movement of the door, ramp, tread or the like. According to the invention, an 'absolute encoder, for example an analog rotary encoder, is provided for detecting a momentary adjustment during the pivoting movement. In one embodiment engages the absolute encoder a rotary or pivoting movement of a component of the transmission or the mechanism, which serve according to the invention for transmitting the rotational movement of the actuator or the drive motor to the door, ramp or step, etc. For example, the absolute encoder is flanged to an output shaft of a reduction gear. The Absolutwergeber provides by design a clear, the respective instantaneous position of the pivoting movement corresponding signal.

Das erfindungsgemäße Antriebssystem zeichnet sich dadurch aus, dass eine Auswerteinheit vorgesehen ist, die ausgelegt ist, die Momentanstellung mit wenigstens einer Referenzstellung, die in einem nichtflüchtigen Speicher der Auswerteinheit hinterlegt ist, zu vergleichen, um ein davon, das heißt von dem Vergleichsergebnis abhängiges Ausgangssignal zu erzeugen. Bei der Referenzstellung kann es sich um eine Endstellung handeln, wie die der geöffneten oder die der geschlossenen Tür, die der ein- oder der ausgefahrenen Rampe oder die des ein- oder ausgeschwenkten Trittes usw. Durch die Verwendung des Absolutwertgebers mit einer Auswerteinheit, die dessen der Momentanstellung entsprechendes Signal mit eine Referenzwert vergleicht, erübrigt sich die den Referenzstellungen entsprechende Anzahl von Endschaltern. Ferner entfallen die mit den Endschaltern verbundenen technischen Nachteile, wie aufwendige mechanische Justage und eine aufgrund der mechanischen Auslösung verbleibende Störanfälligkeit. Zudem kann das Antriebssystem dadurch kostengünstiger hergestellt werden. Im Gegensatz zu einer reinen Steuerung mit Endschaltern ist die Momentanstellung der Tür oder Dergleichen immer - so auch nach einem Stromausfall - durch den Absolutwertgeber bekannt und mit den nicht flüchtig gespeicherten Referenzwerten zu vergleichen, so dass es nach einem Stromausfall keines Initialisierungsvorgangs bedarf, um die tatsächliche Momentanstellung zu ermitteln. Ferner bedarf es bei einer eventuell notwendigen Justage lediglich des Austauschs des wenigstens einen im nicht flüchtigen Speicher hinterlegten Referenzwerts, ohne dass es einer zeitaufwendigen und somit mit hohen Ausfallzeiten verbundenen, mechanischen Justierung bedarf. Das von dem Ergebnis des Vergleichs zwischen Momentanstellung und Referenzstellung abhängige Ausgangssignal wird in einer Ausführungsform einer Überwachungseinrichtung zugeführt, welches die entsprechende Tür-, Tritt- oder Rampenstellung oder das Erreichen einer zugehörigen Endstellung auf einer Systemtafel, beispielsweise im Führerhaus, des Fahrzeugs zur Anzeige bringt.The drive system according to the invention is characterized in that an evaluation unit is provided, which is designed to compare the instantaneous position with at least one reference position, which is stored in a non-volatile memory of the evaluation unit, to one of them, that is dependent on the comparison result output signal produce. The reference position may be an end position, such as the open or closed door, the retracted or extended ramp, or the swing in or out, etc. By using the absolute value encoder with an evaluation unit, the latter If the instantaneous position compares the corresponding signal with a reference value, the number of limit switches corresponding to the reference positions is superfluous. Furthermore, eliminates the technical disadvantages associated with the limit switches, such as complex mechanical adjustment and remaining due to the mechanical release susceptibility. In addition, the drive system can be produced thereby cheaper. In contrast to a pure control with limit switches, the instantaneous position of the door or the like is always - also after a power failure - known by the absolute encoder and to compare with the non-volatile stored reference values, so that it requires no initialization process after a power failure to the actual To determine instant employment. Furthermore, with an adjustment that may be necessary, only the replacement of the at least one reference value stored in the non-volatile memory is required, without the need for time-consuming mechanical adjustment, which is thus associated with high downtimes. The output signal dependent on the result of the comparison between instantaneous position and reference position is fed in one embodiment to a monitoring device which determines the corresponding door, step or ramp position or reaching an associated end position on a system panel, for example, in the cab, brings the vehicle for display.

Bevorzugt wird das Ausgangssignal zur Steuerung des Antriebsmotors oder Aktuators verwendet, um beispielsweise bei Erreichen einer Referenzstellung ein Abschalten des Antriebsmotors oder Aktuators zu erreichen. Das Vorsehen von Endabschaltern kann somit entfallen.Preferably, the output signal is used to control the drive motor or actuator to achieve, for example, upon reaching a reference position, a shutdown of the drive motor or actuator. The provision of Endabschaltern can thus be omitted.

Das von der Auswerteinheit zur Weiterverarbeitung durch eine Motorsteuerung oder ein Überwachungseinrichtung ausgegebene Ausgangssignal kann analog oder digital, beispielsweise ein serielles Bitmuster, sein. Zu Steigerung der Störunanfälligkeit wird ein digitales Signal ausgegeben.The output signal output by the evaluation unit for further processing by a motor control or a monitoring device can be analog or digital, for example a serial bit pattern. To increase the susceptibility to interference, a digital signal is output.

In einer bevorzugten Ausgestaltung ist die Auswerteinheit so ausgelegt, dass das Ausgangssignal für den Fall, dass die Momentanstellung einer der Referenzstellungen entspricht, einem definierten, bevorzugt digitalen, Signalwert entspricht. Beispielsweise wird so ein Endschalter simuliert, der bei Erreichen einer Endstellung einen definierten Schaltzustand einnimmt. Dadurch kann das Ausgangssignal vorteilhaft durch eine bekannte, an die Verwendung von Endschaltern angepasste Überwachungseinrichtung weiterverarbeitet werden.In a preferred embodiment, the evaluation unit is designed so that the output signal for the case that the instantaneous position corresponds to one of the reference positions corresponds to a defined, preferably digital, signal value. For example, such a limit switch is simulated, which assumes a defined switching state when reaching an end position. As a result, the output signal can advantageously be further processed by a known monitoring device adapted to the use of limit switches.

Der Absolutwertgeber erfasst in einer weiteren vorteilhaften Ausgestaltung die Verschwenkbewegung berührungslos. Dadurch kann die Störunanfälligkeit gesteigert werden. Beispielsweise arbeitet der Absolutwertgeber nach einem optischen oder magnetischen Prinzip.The absolute encoder detects in a further advantageous embodiment, the pivoting movement contactless. This can increase the susceptibility to interference. For example, the absolute value encoder works according to an optical or magnetic principle.

Bevorzugt erzeugt der Absolutwertgeber ein digitales Signal zur Auswertung durch die Auswerteinheit. Absolute Drehgeber geben zu jeder Winkelstellung einen bestimmten codierten Zahlenwert (Codewert) an. Dieser Codewert steht unmittelbar nach dem Einschalten zur Verfügung auch ohne Bewegung der Geberachse. Auf der Geberachse ist eine Codierscheibe fest montiert. Die Scheibe ist in einzelne Segmente aufgeteilt, die bei einem nach dem optischen Prinzip arbeitenden Absolutwertgeber abwechselnd lichtdurchlässig bzw. lichtundurchlässig sind und von einer Lichtschranke ausgelesen werden. Die Übertragung der Absolutwerte vom Geber zur Auswerteinheit erfolgt beispielsweise seriell. Hierbei werden beispielsweise spezielle Protokolle wie SSI, PROFIBUS-DP oder EnDat (Fa. Heidenhain) verwendet. Durch die serielle Kommunikation können zusätzlich zur Momentanstellung noch andere Daten übertragen werden. Diese können aktuelle Temperaturwerte des Gebers oder die elektrischen Daten des Antriebsmotors, an den der Geber angeflanscht ist, enthalten (sogenanntes elektronisches Leistungsschild). Wird eine Verschwenkbewegung erfasst, kann ein Drehgeber verwendet werden, ist maximal nur eine Umdrehung aufzulösen wird ein sogenannter Single-Turn-Geber verwendet, sind mehrere Umdrehungen aufzulösen wird ein sogenannter Multi-Turn-Geber verwendet. Optische Multi-Turn-Geber beinhalten im Allgemeinen mehrere Codescheiben, die intern über ein Getriebe verbunden sind.Preferably, the absolute encoder generates a digital signal for evaluation by the evaluation unit. Absolute encoders indicate a specific coded numerical value (code value) for each angular position. This code value is available immediately after switching on, even without movement of the encoder axis. On the encoder axis a Codierscheibe is permanently mounted. The disk is divided into individual segments, which are alternately translucent or opaque in an operating according to the optical principle absolute encoder and are read by a light barrier. The transmission of the absolute values from the encoder to the evaluation unit takes place, for example, serially. in this connection For example, special protocols such as SSI, PROFIBUS-DP or EnDat (Heidenhain) are used. Due to the serial communication, other data can be transferred in addition to the current status. These can contain the current temperature values of the encoder or the electrical data of the drive motor to which the encoder is flanged (so-called electronic nameplate). If a swiveling movement is detected, a rotary encoder can be used, if a maximum of one revolution is to be released, a so-called single-turn encoder is used; if several revolutions are to be resolved, a so-called multi-turn encoder is used. Multi-turn optical encoders generally include a plurality of code disks internally connected via a transmission.

Der Absolutwertgeber ist an einem die Verschwenkbewegung der Tür, Rampe, Tritt oder Dergleichen festlegenden Zapfen angeflanscht. Dadurch können vergleichsweise kostengünstigere Single-Turn-Geber verwendet werden. Zudem wird durch die unmittelbare Anordnung des Gebers an dem bewegten Element, d.h. der Tür, Rampe, Tritt usw., eine sehr genaue und reproduzierbare Stellunpserfassung und somit auch gegebenenfalls Steuerung der Bewegung erreicht, so dass das Spiel in der die Antriebskraft übertragenden Mechanik oder Getriebe kompensiert werden kann. Zudem können so eventuelle Materialbrüche innerhalb der Mechanik oder dem Getriebe erkannt und gemeldet werden, weil beispielsweise trotz einer länger andauernden Aktivierung des Aktuators oder Antriebsmotors das Erreichen der Referenzstellung durch den Geber nicht detektiert wird.The absolute encoder is flanged to a pivoting movement of the door, ramp, kick or the like specifying pin. As a result, comparatively less expensive single-turn encoders can be used. In addition, the immediate location of the encoder on the moving element, i. the door, ramp, tread, etc., achieved a very accurate and reproducible Stellunpserfassung and thus possibly controlling the movement, so that the game can be compensated in the driving force transmitting mechanism or transmission. In addition, so any material fractions can be detected and reported within the mechanics or the transmission, because, for example, despite a prolonged activation of the actuator or drive motor reaching the reference position is not detected by the encoder.

In einer weiteren vorteilhaften Ausgestaltung ist die Auswerteinheit programmierbar. Beispielsweise ist wenigstens der nicht flüchtige Speicher zur Aufnahme der Referenzwerte programmierbar, beispielsweise handelt es sich bei dem nicht flüchtigen Speicher um ein EEPROM oder NV-RAM. Dadurch können die Referenzwerte für eine Justage besonders leicht ausgetauscht werden. Beispielsweise erfolgt die Programmierung der Auswerteinheit über ein BUS-System, wie dem CAN-Bus.In a further advantageous embodiment, the evaluation unit is programmable. For example, at least the non-volatile memory is programmable to receive the reference values, for example, the non-volatile memory is an EEPROM or NV-RAM. As a result, the reference values for an adjustment can be exchanged particularly easily. For example the evaluation unit is programmed via a BUS system, such as the CAN bus.

In einer weiteren Ausgestaltung ist die Mechanik beziehungsweise das Getriebe nicht selbsthemmend ausgebildet. Eine manuelle Betätigung des Ein-/Ausstiegseinrichtung ist so aufgrund der fehlenden Selbsthemmung im Notfall stets gewährleistet, es muss dazu lediglich die Blockierungswirkung einer zusätzlich aus Sicherheitsgründen vorhandenen Blockierungseinrichtung aufgehoben werden. Dies führt zu einem hohen Maß an Sicherheit. Diese Art von Antrieb eignet sich insbesondere für die Kombination mit einem Absolutwertgeber und einer zugehörigen Auswerteinheit, da dadurch auch nach manueller Betätigung der Ein-/Ausstiegseinrichtung die Türstellung jederzeit detektierbar ist.In a further embodiment, the mechanism or the transmission is not self-locking. A manual operation of the entry / exit device is always guaranteed due to the lack of self-locking in case of emergency, it must be repealed only the blocking effect of an additionally existing for safety reasons blocking device. This leads to a high degree of security. This type of drive is particularly suitable for combination with an absolute value transmitter and an associated evaluation unit, since the door position can be detected at any time even after manual actuation of the entry / exit device.

Eine weitere Ausgestaltung zeichnet sich dadurch aus, dass das Getriebe ein erstes Untersetzungsgetriebe, ein zweites Untersetzungsgetriebe sowie eine ansteuerbare Kupplung zwischen dem ersten Untersetzungsgetriebe umfasst. Dadurch dass das gesamte Untersetzungsgetriebe sich aus zwei durch eine Kupplung separierbaren Untersetzungsgetrieben zusammensetzt, kann bei entsprechender Wahl des Untersetzungsverhältnisses der beiden Untersetzungsgetriebe erreicht werden, dass nach Ausrücken der Kupplung eine manuelle Betätigung des Ein-/Ausstiegseinrichtungs gegen die nunmehr reduzierte Selbsthemmung möglich ist. Diese Art von Antrieb eignet sich insbesondere für die Kombination mit einem Absolutwertgeber und einer zugehörigen Auswerteinheit, da dadurch auch nach manueller Betätigung der Ein-/Ausstiegseinrichtung die Türstellung jederzeit detektierbar ist.Another embodiment is characterized in that the transmission comprises a first reduction gear, a second reduction gear and a controllable clutch between the first reduction gear. The fact that the entire reduction gear is composed of two separable by a clutch reduction gears, can be achieved with a suitable choice of the reduction ratio of the two reduction gear that after disengagement of the clutch, a manual operation of the entry / exit device against the now reduced self-locking is possible. This type of drive is particularly suitable for combination with an absolute value transmitter and an associated evaluation unit, since the door position can be detected at any time even after manual actuation of the entry / exit device.

Die Erfindung betrifft ferner ein entsprechend ausgerüstetes Fahrzeug zur Personenbeförderung.The invention further relates to a suitably equipped vehicle for passenger transport.

In den beigefügten Figuren sind Teile zweier bevorzugter Ausführungsformen der erfindungsgemäßen Ein-/Ausstiegseinrichtung mit wenigstens einer verschwenkbar gelagerten Tür, aber jeweils ohne die erfindungsgemäße Auswerteinheit gezeigt, ohne die Erfindung darauf zu beschränken, wobei

Fig. 1:
ein erste Ausführungsform der erfindungsgemäßen Ein/Ausstiegseinrichtung in einem schematisierten Axialschnitt zeigt;
Fig. 2:
ein zweite Ausführungsform der Ein/Ausstiegseinrichtung in einem schematisierten Axialschnitt zeigt.
In the attached figures are parts of two preferred embodiments of the entry / exit device according to the invention with at least one pivotally mounted door, but in each case without the evaluation unit according to the invention shown, without limiting the invention thereto, wherein
Fig. 1:
a first embodiment of the inventive entry / exit means in a schematic axial section shows;
Fig. 2:
a second embodiment of the entry / exit means in a schematic axial section shows.

Fig. 1 zeigt eine als Kompaktantrieb aufgebaute Antriebsvorrichtung 20 für eine Fahrgasttür bei der innerhalb eines schlanken, rohrförmig ausgebildeten Gehäuses 22 in axialer Richtung hintereinander ein elektrischer Antriebsmotor 24 und ein Untersetzungsgetriebe 26, dargestellt als dreiteiliges Planetengetriebe, angeordnet sind. An den Antriebsmotor 24 schließt sich eine Bremse 28 an, die ebenfalls innerhalb des Gehäuses 22 untergebracht ist und als unter Federkraft einrückende und elektromagnetisch lösbare "Low-Active-Bremse" ausgeführt sein kann. Weiterhin sind elektrische Anschlüsse 30 des Antriebsmotors 24 gezeigt. Das Untersetzungsgetriebe 26 ist nicht selbsthemmend ausgeführt. Fig. 1 shows a designed as a compact drive device 20 for a passenger door in which within a slender, tubular housing 22 in the axial direction one behind the other an electric drive motor 24 and a reduction gear 26, shown as a three-part planetary gear, are arranged. The drive motor 24 is followed by a brake 28, which is also housed within the housing 22 and can be designed as a spring-engaging and electromagnetically releasable "low-active brake". Furthermore, electrical connections 30 of the drive motor 24 are shown. The reduction gear 26 is not designed to be self-locking.

Die Antriebsvorrichtung 20 ist vorzugsweise in einer nicht dargestellten Drehsäule untergebracht. Ein nicht erkennbares Abtriebselement des Antriebsmotors 24 ist mit einem ebenfalls nicht erkennbaren Eingangselement des Untersetzungsgetriebes 26 verbunden, dessen Ausgangselement 32 mit einem Eingangselement oder einer Betätigungseinrichtung einer nicht gezeigten Ein-/Ausstiegseinrichtung verbunden ist. Das Ausgangselement 32 kann z.B. an eine bekannte Hub-Dreheinheit angeschlossen sein, deren Ausgangselement mit den Betätigungsvorrichtungen für die Ein-/Ausstiegseinrichtung, beispielsweise einer Fahrgasttür verbunden ist. Weiterhin ist am Ausgangselement 32 des Untersetzungsgetriebes 26 ein Absolutwertgeber 34 angeordnet, mittels dem die Momentanstellung des als Abtriebswelle ausgebildeten Ausgangselements 32 erfasst und als Wert an eine nicht dargestellte Auswerteinheit ausgegeben wird, die den Wert mit dem Wert einer gespeicherten Referenzstellung vergleicht. Weiterhin ist eine Momentabstützungsvorrichtung 40 zur Kopplung der Antriebsvorrichtung 20 mit der nicht gezeigten Drehsäule erkennbar.The drive device 20 is preferably housed in a rotary column, not shown. An unrecognizable output element of the drive motor 24 is connected to a likewise not recognizable input element of the reduction gear 26, whose output element 32 is connected to an input element or an actuator of an input / output device, not shown. The output element 32 can be connected, for example, to a known lifting / rotating unit whose output element is connected to the actuating devices for the entry / exit device, for example a passenger door. Furthermore, an absolute encoder 34 is arranged on the output element 32 of the reduction gear 26, by means of which the instantaneous position of the output shaft designed as output element 32 is detected and output as a value to an evaluation unit, not shown, which compares the value with the value of a stored reference position. Furthermore, one is Momentabstützungsvorrichtung 40 for coupling the drive device 20 with the rotary column, not shown recognizable.

Fig. 2 zeigt eine als Kompaktantrieb aufgebaute Antriebsvorrichtung, beispielsweise für eine Fahrgasttür, bei der innerhalb eines schlanken, rohrförmig ausgebildeten Gehäuses in axialer Richtung hintereinander ein elektrischer Antriebsmotor 1, ein erstes Untersetzungsgetriebe 2, eine ansteuerbare Kupplung 3.3, 3.4 und ein zweites Untersetzungsgetriebe 4 angeordnet sind: Genauer gesagt sind das erste Untersetzungsgetriebe 2 mit dem Antriebsmotor 1 und die damit verbundene erste Kupplungshälfte 3.3 gemeinsam axial mittels Federkraft einer Druckfeder 3.1 mit der zweiten Kupplungshälfte 3.4 und dem zweiten Untersetzungsgetriebe 4 durch Axialverschiebung verbindbar oder trennbar. Dazu ist der Antriebsmotor 1 mit dem ersten Untersetzungsgetriebe 2 verschiebbar in dem rohrförmigen Gehäuse 9 gelagert. Im Notbetrieb spannt ein Bowdenzug 14 die Druckfeder 3.1 und verschiebt den Antriebsmotor 1, das erste Untersetzungsgetriebe 2 und die erste Kupplungshälfte 3.3 axial im rohrförmigen Gehäuse 9, wodurch die Kraftübertragung an der Kupplung 3.3, 3.4 getrennt ist. Weiterhin ist am Ausgangselement 4.1 des zweiten Untersetzungsgetriebes 4 ein Absolutwertgeber 7 angeordnet, mittels der die Momentanstellung des als Abtriebswelle ausgebildeten Ausgangselements 4.1 erfasst wird und als Wert an eine nicht dargestellte Auswerteinheit ausgegeben wird, die den Wert mit dem Wert einer gespeicherten Referenzstellung vergleicht. Die Ausgangswelle 4.1 der gesamten Antriebsvorrichtung ist in nicht eigens dargestellter Weise mit den Betätigungsvorrichtungen, beispielsweise einer Fahrgasttür, verbunden. Fig. 2 shows a drive device constructed as a compact drive, for example, for a passenger door, in which an electric drive motor 1, a first reduction gear 2, a controllable clutch 3.3, 3.4 and a second reduction gear 4 are arranged within a slender, tubular housing in the axial direction one behind the other: More precisely said the first reduction gear 2 with the drive motor 1 and the associated first coupling half 3.3 are connected together axially by spring force of a compression spring 3.1 with the second coupling half 3.4 and the second reduction gear 4 by axial displacement or separable. For this purpose, the drive motor 1 with the first reduction gear 2 is slidably mounted in the tubular housing 9. In emergency operation, a Bowden cable 14 biases the compression spring 3.1 and shifts the drive motor 1, the first reduction gear 2 and the first coupling half 3.3 axially in the tubular housing 9, whereby the power transmission to the clutch 3.3, 3.4 is disconnected. Furthermore, an absolute encoder 7 is arranged on the output element 4.1 of the second reduction gear 4, by means of which the instantaneous position of the output shaft formed as output element 4.1 is detected and output as a value to an evaluation unit, not shown, which compares the value with the value of a stored reference position. The output shaft 4.1 of the entire drive device is connected in a manner not specifically shown with the actuators, such as a passenger door.

Claims (9)

  1. A boarding/deboarding device of a passenger transport vehicle, comprising a pivotably mounted door, ramp, tread or the like, a pin for fixing the pivoting movement of the door, ramp, tread or the like, and a drive system, the drive system comprising the following: at least one actuator or drive motor (1, 24) and a mechanical system (3.3, 3.4) driven by it and/or a gear unit (2, 4, 26) for effecting the pivoting movement of the door, ramp, tread or the like, an absolute value encoder (7, 34) for acquiring a momentary position during the pivoting movement, an evaluation unit configured to compare the momentary position with at least one reference position stored in a non-volatile memory of the evaluation unit in order to generate an output signal dependent thereon, wherein the gear unit comprises a first reduction gear unit (2), a second reduction gear unit (4), and a controllable coupling (3.3, 3.4) is provided between the reduction gear units (2, 4), wherein the absolute value encoder (7, 34) is flange-connected to the pin for directly arranging the absolute value encoder (7, 34) on the door, ramp, tread or the like.
  2. The boarding/deboarding device according to claim 1,
    characterised in that
    the output signal is used for controlling the drive motor (1, 24) or the actuator.
  3. The boarding/deboarding device according to any one of the preceding claims,
    characterised in that
    the output signal is analog or digital, for example a serial bit pattern.
  4. The boarding/deboarding device according to any one of the preceding claims,
    characterised in that
    the output signal corresponds to a defined signal value in the case in which the momentary position corresponds to one of the reference positions.
  5. The boarding/deboarding device according to any one of the preceding claims,
    characterised in that
    the absolute value encoder (7, 34) acquires the pivoting movement without contact.
  6. The boarding/deboarding device according to any one of the preceding claims,
    characterised in that
    the absolute value encoder (7, 34) generates a digital signal for evaluation by the evaluation unit.
  7. The boarding/deboarding device according to any one of the preceding claims,
    characterised in that
    the evaluation unit is programmable.
  8. The boarding/deboarding device according to any one of the preceding claims,
    characterised in that
    the mechanical system or the gear unit (26) is non-self-locking.
  9. Passenger transport vehicle, characterised by a boarding/deboarding device according to any one of the preceding claims.
EP08853085.2A 2007-11-20 2008-10-30 Drive system for pivotal and/or slidable doors or for entry and exit facilities with improved position acquisition Active EP2212504B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL08853085T PL2212504T3 (en) 2007-11-20 2008-10-30 Drive system for pivotal and/or slidable doors or for entry and exit facilities with improved position acquisition

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202007016273U DE202007016273U1 (en) 2007-11-20 2007-11-20 Drive system for entry and exit devices with improved position detection
PCT/EP2008/064723 WO2009065712A1 (en) 2007-11-20 2008-10-30 Drive system for pivotal and/or slidable doors or for entry and exit facilities with improved position acquisition

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EP2212504A1 EP2212504A1 (en) 2010-08-04
EP2212504B1 true EP2212504B1 (en) 2015-03-04

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US (1) US8262150B2 (en)
EP (1) EP2212504B1 (en)
CN (1) CN101868590B (en)
BR (1) BRPI0819007A2 (en)
CA (1) CA2706191C (en)
DE (1) DE202007016273U1 (en)
ES (1) ES2537332T3 (en)
MX (1) MX2010005480A (en)
PL (1) PL2212504T3 (en)
RU (1) RU2429334C1 (en)
WO (1) WO2009065712A1 (en)

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Also Published As

Publication number Publication date
PL2212504T3 (en) 2015-08-31
DE202007016273U1 (en) 2009-04-02
CN101868590A (en) 2010-10-20
CA2706191A1 (en) 2009-05-28
MX2010005480A (en) 2011-05-25
CA2706191C (en) 2015-07-21
CN101868590B (en) 2013-09-11
WO2009065712A1 (en) 2009-05-28
BRPI0819007A2 (en) 2015-08-18
ES2537332T3 (en) 2015-06-05
EP2212504A1 (en) 2010-08-04
RU2429334C1 (en) 2011-09-20
US20100287842A1 (en) 2010-11-18
US8262150B2 (en) 2012-09-11

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