EP1096093B1 - Détection d'obstruction pour une fenêtre - Google Patents

Détection d'obstruction pour une fenêtre Download PDF

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Publication number
EP1096093B1
EP1096093B1 EP00203488A EP00203488A EP1096093B1 EP 1096093 B1 EP1096093 B1 EP 1096093B1 EP 00203488 A EP00203488 A EP 00203488A EP 00203488 A EP00203488 A EP 00203488A EP 1096093 B1 EP1096093 B1 EP 1096093B1
Authority
EP
European Patent Office
Prior art keywords
window
waveguide
high frequency
closing
evanescent field
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
Application number
EP00203488A
Other languages
German (de)
English (en)
Other versions
EP1096093A3 (fr
EP1096093A2 (fr
Inventor
Ghosh Sharmila
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.)
Delphi Technologies Inc
Original Assignee
Delphi Technologies Inc
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 Delphi Technologies Inc filed Critical Delphi Technologies Inc
Publication of EP1096093A2 publication Critical patent/EP1096093A2/fr
Publication of EP1096093A3 publication Critical patent/EP1096093A3/fr
Application granted granted Critical
Publication of EP1096093B1 publication Critical patent/EP1096093B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F15/00—Power-operated mechanisms for wings
    • E05F15/40—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 present invention relates to a system for an electrically operated window which can detect the presence of an obstruction in the path of the window during closing, and which can stop the window.
  • the present invention has particular application for use with an electrically operated window in a motor vehicle.
  • a known obstruction detection system monitors the torque developed by the electric motor which drives the window, and, on detection of increased torque, assumes that an obstruction is preventing closing of the window. The system then stops the electric motor, and, in some cases, reverses the electric motor to open the window, see for example WO 97 065518A.
  • a system in accordance with the present invention for the detection of an obstruction in the path of a closing window which is movable by an electric motor and which has an edge receivable in a portion of a window frame on closing of the window comprises a dielectric waveguide mountable on the portion of the window frame; a high frequency transmitter connected to one end of the waveguide for transmitting a high frequency signal into the waveguide to produce an evanescent field; a high frequency receiver connected to the other end of the waveguide for receiving the evanescent field; and a control unit for monitoring the evanescent field received by the receiver, the control unit being connectable to the electric motor to control the operation of the motor dependent on the signal received by the receiver.
  • the present invention also includes a method of detecting an obstruction in the path of a closing window.
  • the upper portion 10 of a window frame 12 is shown, along with a window 14 which is moved by an electric motor 16.
  • the upper portion 10 of the window frame 12 is substantially U-shaped in cross-section.
  • the window 14 is mounted on a support system (not shown) and can be raised and lowered by the electric motor 16.
  • the upper edge 18 of the window is positioned inside the upper portion 10 of the window frame 12.
  • the obstruction detection system 20 in accordance with the present invention comprises a dielectric waveguide 22, high frequency transmitter 24, a high frequency receiver 26, and a control unit 28.
  • the waveguide 22 mounted on the upper portion 10 of the window frame 12.
  • the transmitter 24 is positioned at one end 30 of the waveguide 22.
  • the receiver 26 is positioned at the other end 32 of waveguide 22.
  • the transmitter 24 and the receiver 26 are connected to the control unit 28, which is also connected to the electric motor 16.
  • the transmitter 24 transmits a high frequency signal along the waveguide 22, which produces a leaky or evanescent field, to the receiver 26.
  • the control unit 28 monitors the receiver 26. If an obstruction is present between the upper edge 18 of the window 14 and the upper part 10 of the window frame 12, the evanescent field produced by the transmitter 24 is damped. If the receiver 26 indicates no damping of the evanescent field, then the control unit 28 notes that there is no obstruction between the upper edge 18 of the window 14 and the upper part 10 of the window frame 12 and allows the window to close.
  • the control unit 28 monitors that an obstruction is present, and stops operation of the electric motor 16 to prevent closing of the window 14. If required, in the latter case, the control unit 28 may cause the electric motor 16 to reverse to move the window 14 in an opening direction.
  • high frequency signal is meant a signal in the range 2.45 to 25 GHz, and preferably in the range 22 to 25 GHz.
  • the present invention provides a low cost obstruction detection system which has the benefits of easier installation when compared to previously known systems which monitor electric motor torque.

Landscapes

  • Power-Operated Mechanisms For Wings (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Window Of Vehicle (AREA)
  • Burglar Alarm Systems (AREA)
  • Glass Compositions (AREA)

Claims (4)

  1. Système (20) de détection d'une obstruction sur le trajet d'une fenêtre (14) qui se ferme et qui peut être déplacée par un moteur électrique (16), et qui présente un bord (18) qui peut être reçu dans une partie (10) d'un cadre de fenêtre (12) lors de la fermeture de la fenêtre, le système comprenant un guide d'ondes diélectrique (22) qui peut être monté sur la partie du cadre de la fenêtre ; un émetteur à haute fréquence (24) connecté à une extrémité (30) du guide d'ondes pour émettre un signal à haute fréquence dans le guide d'ondes pour produire un champ évanescent ; un récepteur à haute fréquence (26) connecté à l'autre extrémité (32) du guide d'ondes pour recevoir le champ évanescent ; et une unité de commande (28) pour surveiller le champ évanescent reçu par le récepteur, l'unité de commande pouvant être connectée au moteur électrique pour commander le fonctionnement du moteur en fonction du signal reçu par le récepteur.
  2. Système selon la revendication 1, dans lequel l'émetteur (24) émet le signal à haute fréquence le long du guide d'ondes (22) seulement au cours de la fermeture de la fenêtre (14).
  3. Procédé de détection d'une obstruction sur le trajet d'une fenêtre qui se ferme (14) comprenant les étapes consistant à émettre un signal à haute fréquence le long d'un guide d'ondes (22) qui peut être monté sur une partie (10) d'un cadre de fenêtre (12) qui reçoit un bord (18) de la fenêtre lors de la fermeture de la fenêtre ; surveiller le champ évanescent produit par le guide d'ondes dû au signal à haute fréquence transmis le long du guide d'ondes ; et arrêter la fermeture de la fenêtre lorsque le champ évanescent surveillé est amorti.
  4. Procédé selon la revendication 3, comprenant l'étape supplémentaire consistant à déplacer la fenêtre dans un sens d'ouverture lors de la constatation d'un amortissement du champ évanescent.
EP00203488A 1999-10-27 2000-10-08 Détection d'obstruction pour une fenêtre Expired - Lifetime EP1096093B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9925303A GB2355760B (en) 1999-10-27 1999-10-27 Obstruction detection for a window
GB9925303 1999-10-27

Publications (3)

Publication Number Publication Date
EP1096093A2 EP1096093A2 (fr) 2001-05-02
EP1096093A3 EP1096093A3 (fr) 2004-04-14
EP1096093B1 true EP1096093B1 (fr) 2007-05-30

Family

ID=10863396

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00203488A Expired - Lifetime EP1096093B1 (fr) 1999-10-27 2000-10-08 Détection d'obstruction pour une fenêtre

Country Status (4)

Country Link
EP (1) EP1096093B1 (fr)
AT (1) ATE363577T1 (fr)
DE (1) DE60035014T2 (fr)
GB (1) GB2355760B (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202004014758U1 (de) * 2004-09-20 2005-11-10 Brose Fahrzeugteile Gmbh & Co. Kommanditgesellschaft, Coburg Steuerungsvorrichtung
DE102005004243A1 (de) * 2005-01-29 2006-08-03 Conti Temic Microelectronic Gmbh HF-Überwachung von mechanischen Verstellantrieben
DE202005014446U1 (de) * 2005-09-12 2007-02-01 Brose Fahrzeugteile Gmbh & Co. Kommanditgesellschaft, Coburg Sensorvorrichtung
US7692125B1 (en) * 2005-11-29 2010-04-06 Lockheed Martin Corporation Evanescent wave coupling for Fresnel direction finding
DE102006000990B3 (de) * 2006-01-05 2007-02-01 Igs Development Gmbh Einrichtung zur Erfassung von Hindernissen
DE102017223627A1 (de) 2017-12-21 2019-06-27 Brose Fahrzeugteile Gmbh & Co. Kommanditgesellschaft, Bamberg Verfahren zur Steuerung einer einen Fahrzeugzugang eines Kraftfahrzeugs betreffenden Funktion

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2493157A (en) * 1947-12-10 1950-01-03 Charles N Merralls Treadle switch
BE1005734A5 (fr) * 1992-04-29 1994-01-11 Icoms Sprl Procede et systeme de detection.
US5621290A (en) * 1993-10-18 1997-04-15 Draftex Industries Limited Movable-window safety device
US5661385A (en) * 1994-12-19 1997-08-26 The Regents Of The University Of California Window-closing safety system
JPH10132669A (ja) * 1996-10-30 1998-05-22 Whitaker Corp:The ピエゾケーブル及びそれを用いたワイヤハーネス

Also Published As

Publication number Publication date
DE60035014D1 (de) 2007-07-12
EP1096093A3 (fr) 2004-04-14
EP1096093A2 (fr) 2001-05-02
GB9925303D0 (en) 1999-12-29
GB2355760B (en) 2003-04-09
ATE363577T1 (de) 2007-06-15
DE60035014T2 (de) 2008-01-24
GB2355760A (en) 2001-05-02

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