EP1145460A2 - Dispositif pour la transmission de signaux dans un vehicule - Google Patents

Dispositif pour la transmission de signaux dans un vehicule

Info

Publication number
EP1145460A2
EP1145460A2 EP99936365A EP99936365A EP1145460A2 EP 1145460 A2 EP1145460 A2 EP 1145460A2 EP 99936365 A EP99936365 A EP 99936365A EP 99936365 A EP99936365 A EP 99936365A EP 1145460 A2 EP1145460 A2 EP 1145460A2
Authority
EP
European Patent Office
Prior art keywords
coil
antenna coil
vehicle
coupling coil
coupling
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.)
Withdrawn
Application number
EP99936365A
Other languages
German (de)
English (en)
Inventor
Karl-Ernst Weiss
Bernd Diebold
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch 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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP1145460A2 publication Critical patent/EP1145460A2/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/1271—Supports; Mounting means for mounting on windscreens
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/27—Adaptation for use in or on movable bodies
    • H01Q1/32—Adaptation for use in or on road or rail vehicles
    • H01Q1/325—Adaptation for use in or on road or rail vehicles characterised by the location of the antenna on the vehicle
    • H01Q1/3291—Adaptation for use in or on road or rail vehicles characterised by the location of the antenna on the vehicle mounted in or on other locations inside the vehicle or vehicle body
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/10—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/10—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
    • H02J50/12—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling of the resonant type
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/80—Circuit arrangements or systems for wireless supply or distribution of electric power involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
    • H04B5/20—Near-field transmission systems, e.g. inductive or capacitive transmission systems characterised by the transmission technique; characterised by the transmission medium
    • H04B5/24—Inductive coupling
    • H04B5/26—Inductive coupling using coils
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
    • H04B5/40—Near-field transmission systems, e.g. inductive or capacitive transmission systems characterised by components specially adapted for near-field transmission
    • H04B5/45—Transponders

Definitions

  • the invention relates to a device for signal transmission in a vehicle.
  • This window pane antenna consists of a metallic frame which encloses the window pane of the motor vehicle, a first antenna conductor attached to or in the window pane and a connection point thereon.
  • the live connection of the antenna connection point is connected to the associated connection unit via a short electrical line.
  • Such a line is disruptive when the antenna structure is in or on a retractable pane and the associated connection unit is immovably mounted; In addition to the increased mechanical bending load on the line due to the movement, the corresponding freedom of movement for this line must also be provided. Further disadvantages are the installation effort and the risk of getting caught of moving parts in this connection line and possible rattling noises.
  • the invention has for its object to improve the electrical and functional connection between the antenna mounted in or on a movable disc and the associated permanently installed electronic unit in relation to the disadvantages mentioned above.
  • the device according to the invention for the transmission of electrical energy and / or electrical signals in a vehicle has an antenna coil which is arranged on or in a movable part, for example a retractable side window.
  • a coupling coil is attached to a part which is stationary with respect to the movable part in close proximity to the antenna coil in such a way that the coupling coil and the antenna coil are inductively coupled to one another and electrical energy and signals can be transmitted in both directions between the antenna coil and the coupling coil. This eliminates the need for wire-bound signal and energy transmission between the antenna coil as the actual transmit / receive antenna of a keyless entry control system for vehicles and the associated control electronics.
  • the antenna coil is used for inductive transmission of the data required to prove the authorization to unlock or lock the vehicle between one or more portable transponders as electronic authorization cards and the vehicle as well as the inductive transmission of electrical energy to transpose without their own energy source with the help of electromagnetic fields.
  • the transponders also contain antenna coils which, like the antenna coil and / or the coupling coil, can be part of a resonant circuit which is matched to the operating frequency (s).
  • the data exchange between the transponder and the vehicle is preferably a question-answer dialog, so that the arrangement according to the invention is designed for sending and receiving.
  • the transformer signal transmission also allows simple adaptation to different impedances or signal levels of the keyless access control system.
  • a window pane of the vehicle is used as the movable part, and the associated door of the vehicle is used as the fixed part.
  • the integration of the movable antenna coil in the window pane, in particular a side window, enables the energy and data exchange between the vehicle and a portable transponder for the purpose of identifying and checking the access authorization for this vehicle.
  • the coupling coil and / or the transmit / receive antenna coil are parts of resonant circuits. With suitable tuning and coupling, external signals and unwanted interference signals such as harmonics can be reduced or suppressed.
  • the coils are therefore also parts of a corresponding filter.
  • FIG. 1 An embodiment of the invention is shown in the drawing and will be described in more detail below.
  • the figure shows the schematic structure of the exemplary embodiment.
  • An antenna coil 10 is accommodated in or on a movable window pane 16.
  • the antenna coil 10 moves in front of a coupling coil 12 in such a way that there is at least a transformer coupling between the two coils when the window pane is at least half pulled out of the lower door part and is visible in the window cutout 18.
  • the coupling coil 12 is accommodated inside the door 20 of a vehicle and is electrically and functionally connected to a control device 14.
  • the third connection between coupling coil 12 and control device 14 is used to tap the coupling coil 12 in order to be able to adapt the transmission ratio.
  • the antenna coil 10 is arranged in a side window 16 of the vehicle, which can be sunk.
  • the antenna coil 10 runs close to the edge of this window pane 16 and can exchange signals with a transponder, not described in detail and not shown, which has to emit a signal recognized by the control unit 14 as authorized in order to allow the user of the transponder access to the vehicle.
  • the vehicle first sends out a request signal via the coupling coil 12 and the antenna coil 10 coupled to it in a transformer manner; If the transponder recognizes that this request is intended for it, it processes the data contained in the request and sends out a response signal. This answer is picked up by the antenna coil 10 and also transmitted by transformer to the coupling coil 12, which in turn forwards the signal to the control unit 14.
  • the control unit 14 compares the response with a response that it has previously correlated with the request data and, if they match, issues the access authorization.
  • the transponder does not contain its own energy source, it can take sufficient energy from the alternating electromagnetic field emitted by the vehicle and, if necessary, store it if it is suitably designed.
  • the transmission frequencies for this energy transport, the request / question and transponder response can be in the LF range ⁇ 150 kHz or another frequency band approved for this (so-called ISM frequencies).
  • the coupling coil 12 is so firmly attached to the inside of the door of the vehicle and dimensioned that in each Any position of the movable window 16 and thus the antenna coil 10, the signal and energy transmission between the antenna coil 10 and coupling coil 12 is guaranteed. This ensures that communication between the vehicle and the transponder is possible even with the window slightly open. It is not necessary for the coupling coil 12 to be fitted in the window cutout 18 in the door 20 and thus to be visible.
  • the antenna coil 10 Since the antenna coil 10 is intended to enable the greatest possible range of communication and the range increases with the area enclosed by the antenna coil 10, its large-area design for transformer coupling to the fixed coupling coil 12 over a large position range of the disk and the antenna coil 10 connected to it is not Contradiction.
  • Both the antenna coil 10 and the coupling coil 12 can advantageously be used as parts of resonant circuits which are matched to the useful frequencies. It is particularly advantageous if the antenna coil is implemented as a conductor structure (film, wire) embedded in the pane or is vapor-deposited, sputtered or the like on it and the associated resonant circuit capacitor is also designed as a conductor structure with the same technology.
  • the antenna coil 10 and the coupling coil 12 are to couple as well as possible without a stray field, parallel alignment with one another and placement as close as possible without a large air gap between them is advisable; the space required is thereby kept small. Number of turns, Conductor cross sections, etc. depend on the system (current strengths, permissible resistances, etc.).
  • the coupling coil 12 can also have a plurality of partial windings on the iron, which the control unit 14 selects or interconnects or switches off as required.
  • a variable adaptation or transformation of impedances, voltages and / or currents is thus possible by changing the transmission ratio between antenna coil 10 and coupling coil 12. This tapping is implemented via a third connection of the coupling coil.
  • the device according to the invention can be used wherever a signal transmission between a movable and a fixed part is necessary. It is preferably used in a vehicle, but is not limited to this.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Power Engineering (AREA)
  • Signal Processing (AREA)
  • Remote Sensing (AREA)
  • Lock And Its Accessories (AREA)
  • Near-Field Transmission Systems (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

L'invention concerne un dispositif pour la transmission de signaux et d'énergie dans un véhicule. Ce dispositif comporte une bobine-antenne (10) placée sur ou dans une partie (16) mobile. Une bobine de couplage (12) est montée, sur une partie (20) fixe par rapport à la partie (16) mobile, au voisinage de la bobine-antenne (10) de telle manière que cette dernière et la bobine de couplage (12) puissent échanger de l'énergie et des signaux au moyen d'un inducteur/transformateur.
EP99936365A 1998-07-22 1999-05-29 Dispositif pour la transmission de signaux dans un vehicule Withdrawn EP1145460A2 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19832911 1998-07-22
DE19832911A DE19832911A1 (de) 1998-07-22 1998-07-22 Vorrichtung zur Signalübertragung in einem Fahrzeug
PCT/DE1999/001597 WO2000005824A2 (fr) 1998-07-22 1999-05-29 Dispositif pour la transmission de signaux dans un vehicule

Publications (1)

Publication Number Publication Date
EP1145460A2 true EP1145460A2 (fr) 2001-10-17

Family

ID=7874885

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99936365A Withdrawn EP1145460A2 (fr) 1998-07-22 1999-05-29 Dispositif pour la transmission de signaux dans un vehicule

Country Status (5)

Country Link
EP (1) EP1145460A2 (fr)
KR (1) KR20010072667A (fr)
AU (1) AU753316B2 (fr)
DE (1) DE19832911A1 (fr)
WO (1) WO2000005824A2 (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002089354A1 (fr) * 2001-04-27 2002-11-07 Commissariat A L'energie Atomique Dispositif de transmission de signaux entre deux objets sans contact en mouvement relatif l"un par rapport a l"autre
DE102005042960A1 (de) * 2005-09-09 2007-03-22 Hella Kgaa Hueck & Co. Vorrichtung zur Übertragung elektrischer Signale und elektrischer Energie in einem Kraftfahrzeug
JP5399256B2 (ja) 2006-11-15 2014-01-29 ピルキントン オートモーティヴ ドイチェラント ゲーエムベーハー アンテナコネクタ
WO2008058881A1 (fr) 2006-11-15 2008-05-22 Pilkington Automotive Deutschland Gmbh Vitrage
DE102007035310A1 (de) * 2007-07-27 2009-01-29 Conti Temic Microelectronic Gmbh Verfahren und Vorrichtung zur Daten-und/oder Energieübertragung
DE102008048500A1 (de) * 2008-09-23 2010-04-15 Airbus Deutschland Gmbh Verschließbare Einrichtung mit Daten- und Energieübertragung durch elektromagnetische Induktion
DE102012112811A1 (de) * 2012-12-20 2014-06-26 Huf Hülsbeck & Fürst Gmbh & Co. Kg Kommunikationseinheit, System mit einer Kommunikationseinheit sowie Verfahren für eine Überprüfung einer Zugangsberechtigung
DE102016213482B4 (de) * 2016-07-22 2022-08-25 Continental Automotive Technologies GmbH Fahrzeugkomponentenanordnung mit induktiver Übertragung
CN106505744B (zh) * 2016-11-08 2018-02-27 中国商用飞机有限责任公司北京民用飞机技术研究中心 消除主电能传输线束的飞机供电系统及其电能分配方法
DE102017114193A1 (de) * 2017-06-27 2018-12-27 Valeo Schalter Und Sensoren Gmbh Heizvorrichtung mit einer Induktionsheizung zum Heizen einer Kraftfahrzeug-Scheibe, Kraftfahrzeugvorrichtung, System, sowie Kraftfahrzeug

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3131246A1 (de) * 1981-08-04 1983-02-24 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Induktive datenuebertragung zwischen fahrzeugen und streckenfesten einrichtungen
JPS61196080A (ja) * 1985-02-21 1986-08-30 日産自動車株式会社 無線式利用者識別装置
US4897643A (en) * 1986-08-11 1990-01-30 Mazda Motor Corporation Vehicular electronic equipment with door lock and side window antenna
FR2607326B1 (fr) * 1986-11-25 1990-04-27 Cga Hbs Ensemble d'antennes emission-reception situe a poste fixe pour une liaison radioelectrique bidirectionnelle avec un vehicule
DE4242549C1 (de) * 1992-12-16 1994-03-17 Hirschmann Richard Gmbh Co Einbruchmelderanordnung
DE4423191B4 (de) * 1994-07-01 2004-05-13 Heinz Prof. Dr.-Ing. Lindenmeier Fensterscheibenantenne mit extremer Bandbreite für Kraftfahrzeuge
JPH10273015A (ja) * 1997-03-31 1998-10-13 Tokai Rika Co Ltd 車両用送受信装置
DE19814460B4 (de) * 1997-04-07 2010-01-07 Marquardt Gmbh System zur Signalübertragung

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO0005824A3 *

Also Published As

Publication number Publication date
KR20010072667A (ko) 2001-07-31
AU753316B2 (en) 2002-10-17
WO2000005824A3 (fr) 2002-02-14
AU5151099A (en) 2000-02-14
DE19832911A1 (de) 2000-02-10
WO2000005824A2 (fr) 2000-02-03

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