WO1998055722A1 - Procede permettant d'eviter le coincement d'un corps etranger, et systeme anti-coincement - Google Patents

Procede permettant d'eviter le coincement d'un corps etranger, et systeme anti-coincement Download PDF

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Publication number
WO1998055722A1
WO1998055722A1 PCT/EP1998/003360 EP9803360W WO9855722A1 WO 1998055722 A1 WO1998055722 A1 WO 1998055722A1 EP 9803360 W EP9803360 W EP 9803360W WO 9855722 A1 WO9855722 A1 WO 9855722A1
Authority
WO
WIPO (PCT)
Prior art keywords
detector beam
opening
closing edge
detector
closed
Prior art date
Application number
PCT/EP1998/003360
Other languages
German (de)
English (en)
Inventor
Michael Flieser
Karsten RÜTER
Michael Wokrinek
Original Assignee
Lisa Dräxlmaier GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Lisa Dräxlmaier GmbH filed Critical Lisa Dräxlmaier GmbH
Publication of WO1998055722A1 publication Critical patent/WO1998055722A1/fr

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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V8/00—Prospecting or detecting by optical means
    • G01V8/10—Detecting, e.g. by using light barriers
    • G01V8/12—Detecting, e.g. by using light barriers using one transmitter and one receiver
    • G01V8/18—Detecting, e.g. by using light barriers using one transmitter and one receiver using mechanical scanning systems
    • 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
    • E05F15/40—Safety devices, e.g. detection of obstructions or end positions
    • E05F15/42—Detection using safety edges
    • E05F15/43—Detection using safety edges responsive to disruption of energy beams, e.g. light or sound
    • E05F15/431—Detection using safety edges responsive to disruption of energy beams, e.g. light or sound specially adapted for vehicle windows or roofs
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2900/00—Application of doors, windows, wings or fittings thereof
    • E05Y2900/50—Application of doors, windows, wings or fittings thereof for vehicles
    • E05Y2900/53—Type of wing
    • E05Y2900/55—Windows

Definitions

  • the invention relates to a method for preventing the jamming of a foreign body in an opening to be closed by a motor-driven device, such as a door window, a sunroof or the like in a motor vehicle, in which when a foreign body located in the opening is detected by a detector beam, the motor driven device is switched off or switched to a reversing mode.
  • a motor-driven device such as a door window, a sunroof or the like in a motor vehicle
  • the invention relates to an anti-trap system for a motor-driven device that closes an opening and has an emitter that emits a detector beam to detect a foreign body and at least one receiver that detects the detector beam.
  • Methods and anti-trap systems of the type mentioned at the outset are intended to prevent, for example, an electrically operated window lifter or an electrically operated sunroof of a motor vehicle from pinching, damaging or injuring any foreign body.
  • systems of this type are intended to prevent even the slightest injury to any body parts such as those in the (door window or roof) opening to be closed
  • fingers, hands, arms or head Basically there is a risk in motor vehicles that the body part between the upper edge of the window pane and the lower edge (closing edge) of the upper door handle (upper door frame) is pinched.
  • With electrically operated sunroofs a body part can get caught between the front edge of the sunroof and the closing edge in the headlining.
  • Anti-trap systems can basically be divided into two groups.
  • the first group concerns touch-sensitive systems.
  • the second group includes contactless pinch protection detection.
  • a switching band is known, for example, which is arranged directly at the point of possible pinching.
  • conductive elastomer tapes have already been installed in motor vehicles for this purpose, in which conductive elastomer layers are used Detection of a foreign body are included.
  • an optical fiber arranged in the seal on the door window frame is known from DE 37 31 428 AI. The optical fiber switches off the electric motor of the window lifter via a light sensor when the light intensity received by the light sensor changes.
  • This system like all systems which respond to touch, has the disadvantage that at least a slight pinching of the foreign body precedes detection and switching off of the motor-operated device. Even then, there is already a risk of injury, especially for children.
  • the detection of a foreign body depends on the pinching angle and is accordingly unreliable.
  • a relatively high closing pressure is required to move the window pane into the door seal, for example. Accordingly, this area must be excluded from the detection in the systems which can be assigned to the first group, since these would otherwise detect a foreign body which is not present.
  • such systems require sophisticated and sensitive measurement technology as well as complex concepts for signal processing and interference suppression.
  • At least one electrically operated actuator of the window lifter connected to the electrical supply can be influenced directly via electrical operating elements or indirectly via at least one light transmitter, a light receiver and an electronic safety device having a light guide element designed as a reflector band.
  • the light receiver forwards its output signal, which is dependent on the received light intensity, to influence the closing process to a circuit arrangement.
  • the reflector band is arranged close to and along the roof section of the motor vehicle which receives the window edge in such a way that the light emitted by the light transmitter arranged on the one hand is guided to the light receiver arranged on the other hand by multiple reflections occurring at least in regions on the surface of the reflector band.
  • the device is characterized in that the reflector band is an integral part of the sealing arrangement which receives the window edge and is arranged along the relevant roof section of the motor vehicle.
  • a very similar device is also known from EP 0 556 711 AI. Again, a light-deflecting means in the form of a metal foil, a metal sheet or a reflective lacquer is created in the partial area of the upper edge area of the window opening.
  • the technical problem on which the invention is based is to improve a method for preventing the jamming of a foreign body in an opening of the type mentioned at the beginning, which is to be closed by a motor-driven device, in such a way that a larger area of the opening can be detected upon the penetration of a foreign body.
  • the invention is based on the technical problem of creating a corresponding anti-trap system.
  • the present invention is based on the idea, instead of the previously "static" light barrier systems, which have the disadvantage, among other things, that only a very small area of the opening to be monitored is monitored for the penetration of a foreign body by a to replace "dynamic" light barrier system.
  • a dynamic detector beam system used for the first time to prevent the foreign body from being trapped in an opening to be closed by a motor-driven device is distinguished by the fact that the detector beam is deflected in different directions over time. This makes it possible with an emitter to monitor larger areas of an opening for the penetration of a foreign body.
  • all directionable physical wave fields can be used as a detector beam that can be changed over time with respect to the direction.
  • the use of light as a detector beam is advantageous for the present application.
  • the means necessary for generating and emitting a light beam are well known and relatively inexpensive.
  • a laser beam which is emitted, for example, by a laser diode, is advantageously used to detect a foreign body.
  • a laser beam is namely a light beam that runs largely parallel and has only a very small angular aperture. Accordingly, even the smallest foreign bodies can be detected easily.
  • a reflection means is provided on the closing edge region opposite the emitter, sufficient light can be reflected back, which light is collected by the receiver and processed in an assigned control part.
  • a plurality of receivers are arranged in the region of the closing edge of the opening to be closed, so that a correspondingly continuously changing detector beam is detected by the various receivers and the detection by an associated control part in a corresponding manner is processed.
  • a reflection means is provided in the region of the closing edge for reflecting the detector beam in the direction of a single receiver.
  • the reflection means can comprise all means known for this in the prior art, for example special reflective lacquer layers or special reflection foils, which reflect the detector beam back into the direction of incidence of the beam, for example according to the "cat's eye” principle, where the receiver is in the vicinity of the transmitter sits.
  • the reflection means into the sealing component there (for example window seal or sunroof seal).
  • the reflection means can already be integrated in one piece during the manufacture of the sealing component, for example, when extruding the sealing profile, corresponding particles which reflect the detector beam are “extruded” into the sealing component at least in a desired or suitable surface area.
  • Such reflecting particles can be prisms, for example or the like.
  • the reflection means changes the polarization of the received light and the receiver is set to the changed light.
  • the emitter and the receiver are housed in one housing.
  • the housing is advantageously arranged on the side opposite the closing edge of the opening area to be closed. With this arrangement, the entire opening is “scanned” by the detector beam which is continuously changed in direction. That is, any foreign matter at any point in the opening is detected. « ⁇ ⁇ j d ti PJ Q for Q ro tr ro
  • Fig. 1 is a schematic side view of a vehicle door, in which an anti-trap system according to the invention is integrated.
  • Figure 2 is a schematic partial cross-sectional view of a first embodiment of the present invention which includes a rotating mirror;
  • Fig. 3 is a schematic partial cross-sectional view of a second embodiment of the present invention, in which an oscillating mirror is integrated.
  • a door window opening 17 is essentially delimited on three sides by the upper door spar 8. In the lower area, the window opening 17 is delimited by a lower door spar 3.
  • the window pane 13, which is motor-driven to close the window opening 17, is accommodated in the lower door area in the retracted state.
  • the upper edge of the window pane 14 closes tightly with the closing edge 18 of the door spar 8.
  • the closing edge 18 extends here in the essentially over that area of the upper door spar 8 which faces the lower door spar 3.
  • a reflective film 9 is attached not only in the area of the closing edge 18, but also on the side parts of the upper door spar 8.
  • the reflective film 9 is a polarizing reflective film that changes the polarization of an incident light beam, for example by rotation through 90 °.
  • a reflected light beam thus has a polarization rotated by 90 ° with respect to the incident light beam 7.
  • an emitter and receiver device 2 is accommodated on the inside or outside side with respect to the window pane 13.
  • a fine laser beam generated in a laser diode (not shown) is emitted with the emitter part of the device 2.
  • the receiving part of the device 2 With the receiving part of the device 2, light emitted from the emitter part of the device 2 or, as here, light changed by the reflection film 9 is detected.
  • the emitter and receiver device 2 is connected via a cabling 15 to the necessary energy source for operating the laser diode located therein as well as to a control unit which - according to the light detected by the receiver part - switches off or reverses the window regulator motor.
  • the first embodiment according to FIG. 2 comprises a rotating mirror 1 which rotates in one direction about an axis of rotation 10 at approximately 1 to 60 Hz, in particular 15 Hz.
  • the rotating mirror 1 has one Mirror surface 11 on which the laser beam 7 is reflected from the emitter part of the emitter and receiving device 2.
  • a reflective film 12 is attached to the entire back of the rotating mirror 1.
  • the reflective film 12 attached to the rotating mirror 1 is identical to the reflective film 9 attached to the upper door rail 8 in the region of the shooting edge 18, as shown in FIG. 1.
  • the emitter and receiving device 2 is accommodated in the lower door pillar 3.
  • the lower door spar 3 has an opening 6, which is designed such that the laser beam 7 falls on the rotating mirror 1, as well as light reflected by the reflective film 9 on the upper door spar 8 can strike the receiver part of the device 2.
  • FIG. 3 A configuration which is essentially identical except for the type of mirror according to a second embodiment is shown in FIG. 3.
  • an oscillating tilting mirror 5 is pivotably arranged in the corner region of the lower door spar 3 and the side part of the door spar 8.
  • the tilting mirror 5 in turn has a mirror surface 51, which fulfills the same function as the mirror surface 11 of the rotating mirror 1 with respect to the embodiment explained in FIG. 2.
  • the tilting mirror 5 is pivotally mounted on a pivot axis 52 at its lower end. For this purpose, a holder 53 is created.
  • Both the rotating mirror 1 and the tilting mirror 5 are driven by a motor.
  • the anti-trap protection System activated.
  • the rotating mirror 1 or the tilting mirror 5 is set in motion. This means that the rotating mirror 1 executes, for example, 15 revolutions per second or the tilting mirror 5 pivots about 15 times per second through a predetermined angular range.
  • the laser diode in the emitter part of the device 2 is actuated.
  • the laser beam 7 emitted continuously or in a pulsed manner by the laser diode strikes the mirror surface 11 or 51 and is reflected according to the physical laws of refraction. Depending on the position of the mirror surface 11 or 51, the laser beam is reflected on the mirror surface 11 or 51 at another location in the area of the closing edge 18.
  • the laser beam 7 is reflected on the reflection film 9. Part of the reflected light of the laser beam 7 is incident on the receiving part of the device 2.
  • the control part does not switch off the electric window lifter.
  • the power window is immediately turned off or reversed by the control part, i.e. the window pane 13 is moved downwards.
  • the change in the position of the mirror surface 11 or 51 ensures that the entire closing edge 18 is scanned by a laser beam 7.
  • the entire door window opening is also detected by the laser beam 7.
  • a foreign body 16 located somewhere in the door window opening 17 is removed
  • Laser beam 7 is detected and the electric window regulator is controlled accordingly.
  • the laser beam does not strike the mirror surface 11 for a certain angular range, but on the back. Due to the attachment of the reflective film 12, which is identical to the reflective film 9 in the area of the closing edge 18 on the upper door rail 8, the reflective film 9 is in turn reflected on the receiver part of the device 2, so that the control part of the system is pretended that there is none Foreign body is located in the door window opening area.
  • either polarized laser light is emitted or the emitted laser light is polarized by a polarizer connected downstream of the laser diode, for example a polarization filter.
  • the reflection film 9 or 12 reflects the incident laser light in such a way that the polarization is rotated by 90 °.
  • the receiver part of the device 2 only detects "rotated" laser light in this way. In this way, reflecting foreign bodies can also be detected as foreign bodies.

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  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Geophysics (AREA)
  • Power-Operated Mechanisms For Wings (AREA)

Abstract

L'invention concerne un procédé permettant d'empêcher le coincement d'un corps étranger (16) dans une ouverture (17) à fermer au moyen d'un dispositif (13) entraîné par moteur, par exemple une fenêtre de portière, un toit ouvrant ou analogue, dans un véhicule. Selon ledit procédé, lors de la détection par un faisceau détecteur (7), d'un corps étranger (16) se trouvant dans l'ouverture (17), le dispositif (13) entraîné par moteur est arrêté ou mis en marche arrière. Le procédé selon l'invention se caractérise en ce que le sens du faisceau détecteur (7) est modifié en continu de sorte ce faisceau détecteur (7) se déplace sur la zone du bord de fermeture (18) de l'ouverture à fermer (17). L'invention concerne en outre un système anti-coincement qui fonctionne conformément au procédé présenté. Ce système anti-coincement se caractérise par un moyen de déflexion (1, 5) servant à dévier le faisceau détecteur (7), avec lequel le sens du faisceau détecteur (7) peut être modifié en continu.
PCT/EP1998/003360 1997-06-06 1998-06-05 Procede permettant d'eviter le coincement d'un corps etranger, et systeme anti-coincement WO1998055722A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19723974.9 1997-06-06
DE19723974A DE19723974A1 (de) 1997-06-06 1997-06-06 Verfahren zum Verhindern des Einklemmens eines Fremdkörpers und Einklemmschutzsystem

Publications (1)

Publication Number Publication Date
WO1998055722A1 true WO1998055722A1 (fr) 1998-12-10

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ID=7831727

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1998/003360 WO1998055722A1 (fr) 1997-06-06 1998-06-05 Procede permettant d'eviter le coincement d'un corps etranger, et systeme anti-coincement

Country Status (2)

Country Link
DE (1) DE19723974A1 (fr)
WO (1) WO1998055722A1 (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19949056A1 (de) * 1999-10-12 2001-04-19 Kronenberg Gmbh H & J Lichtschranke
DE10248762B4 (de) * 2002-10-18 2005-06-23 Wilhelm Karmann Gmbh Kraftfahrzeug mit einem fahrbaren Verdeck
US20040124972A1 (en) * 2002-12-27 2004-07-01 Lear Corporation Window anti-pinch and intrusion alarm
DE102006043615A1 (de) * 2006-09-16 2008-03-27 Conti Temic Microelectronic Gmbh Verfahren und Vorrichtung zum Erkennen eines Hindernisses in einem Öffnungsbereich einer verschließbaren Öffnung
DE102006051487B3 (de) * 2006-10-31 2008-04-03 Webasto Ag Verfahren und Vorrichtung zum Erfassen einer Einklemmsituation
DE102006052004B4 (de) 2006-11-03 2010-11-11 Webasto Ag Verfahren zum Überwachen eines Bereiches mit Einklemmgefahr und Einklemmschutzvorrichtung
DE102006057680B3 (de) * 2006-12-07 2008-04-10 Audi Ag Verfahren und Vorrichtung zum Öffnen und Schließen eines elektrischen Bauteils bei einem Hindernis
AT510692B1 (de) 2011-03-04 2012-06-15 Isiqiri Interface Tech Gmbh Lichtvorhang sowie eine darauf basierende eingabevorrichtung für eine datenverarbeitungsanlage
EP3296177B1 (fr) * 2016-09-19 2021-08-11 Gebr. Bode GmbH & Co. KG Système de contrôle d'accès à un dispositif d'accès de véhicule
CN111648690A (zh) * 2019-10-24 2020-09-11 摩登汽车有限公司 车窗控制装置、车窗及汽车

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2434332A1 (fr) * 1978-08-25 1980-03-21 Datalogic Spa Barriere photoelectrique appartenant a un dispositif de securite contre les accidents pour des machines-outils
DE3325220A1 (de) * 1983-07-13 1984-08-02 Daimler-Benz Ag, 7000 Stuttgart Lichtschranke
DE3731428A1 (de) 1987-09-18 1989-04-06 Bayerische Motoren Werke Ag Vorrichtung zur vermeidung des einquetschens von koerperteilen beim schliessen elektrisch betaetigbarer fenster oder schiebedaecher
DE4028584A1 (de) 1990-09-08 1991-11-28 Daimler Benz Ag Vorrichtung zum vermeiden von unfaellen beim schliessen einer durch fremdkraft beweglichen tafel
EP0556711A1 (fr) 1992-02-21 1993-08-25 Hella KG Hueck & Co. Dispositif pour surveiller la fermeture d'un panneau de fenêtre, en particulier une fenêtre d'un véhicule automobile
DE4226134A1 (de) 1992-08-07 1994-02-10 Kostal Leopold Gmbh & Co Kg Einrichtung zur Überwachung und Steuerung des Öffnungs- und/oder Schließvorganges von elektrisch betriebenen Aggregaten
US5296924A (en) * 1991-05-07 1994-03-22 Automobiles Peugeot Process for detection of obstacles present, in particular, in front of an automotive vehicle
WO1995025380A1 (fr) * 1994-03-17 1995-09-21 Prospects Corporation Systeme commande d'aeration d'un vehicule

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2434332A1 (fr) * 1978-08-25 1980-03-21 Datalogic Spa Barriere photoelectrique appartenant a un dispositif de securite contre les accidents pour des machines-outils
DE3325220A1 (de) * 1983-07-13 1984-08-02 Daimler-Benz Ag, 7000 Stuttgart Lichtschranke
DE3731428A1 (de) 1987-09-18 1989-04-06 Bayerische Motoren Werke Ag Vorrichtung zur vermeidung des einquetschens von koerperteilen beim schliessen elektrisch betaetigbarer fenster oder schiebedaecher
DE4028584A1 (de) 1990-09-08 1991-11-28 Daimler Benz Ag Vorrichtung zum vermeiden von unfaellen beim schliessen einer durch fremdkraft beweglichen tafel
US5296924A (en) * 1991-05-07 1994-03-22 Automobiles Peugeot Process for detection of obstacles present, in particular, in front of an automotive vehicle
EP0556711A1 (fr) 1992-02-21 1993-08-25 Hella KG Hueck & Co. Dispositif pour surveiller la fermeture d'un panneau de fenêtre, en particulier une fenêtre d'un véhicule automobile
DE4226134A1 (de) 1992-08-07 1994-02-10 Kostal Leopold Gmbh & Co Kg Einrichtung zur Überwachung und Steuerung des Öffnungs- und/oder Schließvorganges von elektrisch betriebenen Aggregaten
WO1995025380A1 (fr) * 1994-03-17 1995-09-21 Prospects Corporation Systeme commande d'aeration d'un vehicule

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