AU753316B2 - Device for transmitting signals in a vehicle - Google Patents
Device for transmitting signals in a vehicle Download PDFInfo
- Publication number
- AU753316B2 AU753316B2 AU51510/99A AU5151099A AU753316B2 AU 753316 B2 AU753316 B2 AU 753316B2 AU 51510/99 A AU51510/99 A AU 51510/99A AU 5151099 A AU5151099 A AU 5151099A AU 753316 B2 AU753316 B2 AU 753316B2
- Authority
- AU
- Australia
- Prior art keywords
- coil
- vehicle
- antenna
- antenna coil
- coupling coil
- 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.)
- Ceased
Links
- 230000008878 coupling Effects 0.000 claims description 34
- 238000010168 coupling process Methods 0.000 claims description 34
- 238000005859 coupling reaction Methods 0.000 claims description 34
- 230000009466 transformation Effects 0.000 claims description 8
- 238000004804 winding Methods 0.000 claims description 5
- 230000006978 adaptation Effects 0.000 claims description 4
- 238000013475 authorization Methods 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 description 8
- 239000004020 conductor Substances 0.000 description 5
- 238000013461 design Methods 0.000 description 5
- 241001074085 Scophthalmus aquosus Species 0.000 description 3
- 230000004044 response Effects 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 2
- 230000001939 inductive effect Effects 0.000 description 2
- 230000008054 signal transmission Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 230000000875 corresponding effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000005672 electromagnetic field Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 230000001131 transforming effect Effects 0.000 description 1
Classifications
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- 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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B5/00—Near-field transmission systems, e.g. inductive loop type
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- H04B5/26—
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- H04B5/45—
Description
DEVICE FOR TRANSMITTING SIGNALS IN A VEHICLE Prior Art The invention relates to a device for transmitting signals in a vehicle.
From DE-A 44 23 191 a window pane antenna for vehicles with an extreme bandwidth is known. This window pane antenna consists of a metallic frame which comprises the window pane of the vehicle, a first antenna conductor positioned on or in the window pane and a connection point on the antenna conductor. The voltage-carrying connection of the antenna connection point is connected to a connection unit belonging to it by a short electric lead.
A lead of this type interferes when the antenna structure in or on a pane which can be wound down and the connection unit belonging to it is immovably assembled; alongside the increased mechanical flexural load of the line because of the movement, appropriate space for free movement must be provided. Other disadvantages are the cost of assembly, the danger of catching of moveable parts in this connection line and possible rattling sounds.
The object of the invention is to improve the electrical and functional connection between the antenna in or on a movable pane and the fixed electronic unit belonging to it with Srespect to the above disadvantages.
25 Advantages of the Invention *o 20/08/02,tdl 1747.spc. 1 WO 00.05824 PCT/DE99/01597 2 The device of the invention for transmitting electric energy and/or electric signals in a vehicle features an antenna coil, which is arranged on or in a moveable part, for example a windable side window. A coupling coil is positioned on a fixed part opposite a moveable part in close proximity to the antenna coil in such a way that the coupling coil and the antenna coil are coupled together inductively and electric energy and signals can be transmitted in both directions between the antenna coil and the coupling coil. By this means, a line-connected signal and energy transmission between the antenna coil as the actual transmission reception antenna of a keyless access control system for vehicles and the electronics associated with it can be dispensed with. The antenna coil serves, in a keyless access control system, both the inductive transmission and the data necessary for the authorisation to lock and unlock the vehicle between one or more portable transponder(s) as electronic authorisation and the vehicle and the inductive transmission of electric energy to transponders without their own sources of energy with the aid of electromagnetic fields. In addition, the transponders likewise contain antenna coils, which, like the antenna coil and/or the coupling coil, can be part of a resonance circuit tuned to the operating frequencies.
The exchange of data between transponder and vehicle is preferably a questionanswer dialogue so that the arrangement of the invention is designed for transmission and reception. The transformation means of signal transmission also permits, with appropriate dimensioning, a simple adaptation to various impedances or signal levels of the keyless access control system. A particularly advantageous design permits, by means of a control device belonging to it, as occasion demands, the controlled change of the effective number of turns of the coupling coil, an improved adaptation of the level of currents and voltages variable transformation ratio of the transformer formed by the antenna coil and the coupling coil). All necessary parts (lines, circuitry, winding taps) are fixed-assembled or parts of the immovable, inbuilt components (control devices, coupling coils).
In an advantageous further development it is planned that a windowpane of the vehicle be used as the moveable part and the vehicle door to which it belongs be used WO 00.05824 PCT/DE99/01597 3 as the fixed part. The integration of the moveable antenna coil into the window pane, in particular a side pane, enables the exchange of energy and data between the vehicle and a portable transponder for the purpose of identifying and checking the right to access this vehicle.
In an advantageous design it is planned that the coupling coil and/or the transmission/reception antenna coil are parts of an oscillating circuit. With appropriate tuning and coupling, external signals and unwanted interference signals such as harmonic components can be reduced or suppressed. The coils are at the same time parts of a corresponding filter.
Further advantageous designs result from the other dependent claims and from the description.
Drawing An embodiment of the invention is depicted in the drawing and will be described in the following in greater detail. The figure shows the schematic construction of the embodiment.
Description of the embodiment An antenna coil 10 is positioned in or on a moveable windowpane 16. The antenna coil 10 moves in such a way before a coupling coil 12 that at least one transformationcoupling between both coils results when the window pane is at least half-way out of the lower door piece and is visible in the window 18. The coupling coil 12 is located WO 00.05824 PCT/DE99/01597 4 inside the door 20 of a vehicle and is functionally and electrically connected to a control device 14. The third connection between the coupling coil 12 and the control device 14 serves to tap the coupling coil 12 in order to adapt to the transformation ratio.
The antenna coil 10 is arranged in a side windowpane 16 of the vehicle, which can be lowered. The antenna coil 10 runs near the edge of this window pane 16 and can exchange signals with a transponder not depicted which must emit a signal from the control device 14 indicating authorisation recognition, in order to enable the user of the transponder access to the vehicle. Then the vehicle firstly transmits a request signal via the coupling coil 12 and the antenna coil 10 coupled to produce a transformation; the transponder recognises that this request is intended for it, processes it in the data contained in the request and transmits a response signal. This response is received by the antenna coil 10 and is likewise transmitted by means of transformation to the coupling coil 12, which, for its part, forwards the signal to the control device 14. The control device 14 compares the answer with an answer correlated previously by itself with the request data and grants access in the case of agreement.
If the transponder contains no energy source of its own, if the design is appropriate, it can draw and if necessary store sufficient energy from the radiated electromagnetic alternating field of the vehicle. The transmission frequencies for this energy transport, the request and transponder response can lie in the LF range 150 kHz or another frequency band permissible for it (so-called ISM frequency).
The coupling coil 12 is fixed on the inner side of the door and dimensioned in such a way that in any given position of the moveable window pane 16 and consequently the antenna coil 10 the signal and energy transmission between the antenna coil and the coupling coil 12 is guaranteed. By this means it is ensured that even in the case of a slightly opened window a communication between vehicle and transponder is possible. It is not necessary that the coupling coil 12 be positioned in the window t itself 18 of the door and is visible.
As the antenna coil 10 should enable as large a range of communication as possible and the range increases with the surface surrounded by the antenna coil 10, its large area design for the transforming coupling with the fixed coil 12 over a large position area of the pane and the antenna coil connected to it is no contradiction.
Both the antenna coil and the coupling coil 12 can be advantageously used as parts of the oscillating circuits tuned to the desired frequencies. It is particularly advantageous when the antenna coil is realised in the conductor structure (foil, wire) in the pane or it is vapourcoated etc. and the oscillating circuit condenser is also designed as conductor structure with the same technology.
As the antenna coil 10 and the coupling coil 12 should be coupled together as well as possible without stray field, a parallel alignment to one another and as close a positioning of them to one another as possible without a large air gap between them is advisable; by this means the space for the construction is kept as small as possible. Numbers of turns, conductor cross sections etc. are dependent on the system (current strength, allowable resistance etc.).
The coupling coil 12 can also feature several partial windings, which are selected by the control device 14 according to requirements connected up or disconnected. By this means, through the changing of the transformation ratio between the antenna coil 10 and the coupling coil 12, a variable adaptation or transformation of impedances, voltages and/or currents is possible. This tapping is realised via a third connection of the coupling coil.
2 The device of the invention can be used wherever a signal transmission between a moveable part and a fixed part is necessary.
*0o•0 20/08/02,tdl 1747.spe,5
Claims (9)
1. Device for transmitting electrical energy and/or electric signals in a vehicle, said device having an antenna coil arranged on or in a moveable part a coupling coil positioned in close proximity to the antenna coil in such a way that the antenna coil and the coupling coil are coupled inductively with one another and electrical energy and signals can be transmitted in both directions between the antenna coil and the coupling coil.
2. Device according to Claim 1, wherein a window pane of the vehicle is used as the moveable part.
3. Device according to any one of the preceding claims, wherein a door of the vehicle is used as the fixed part.
4. Device according to any one of the preceding claims, wherein the antenna coil and/or the coupling coil are parts of oscillating circuits. Device according to any one of the preceding claims, wherein the oscillating circuits can be tuned.
6. Device according to any one of the preceding claims, wherein the antenna coil is inductively coupled with the coupling coil in every position of the moveable part.
7. Device according to any one of the preceding claims, wherein the antenna 25 coil transmits and receives a signal for access authorisation of the vehicle.
8. Device according to any one of the preceding claims, wherein the antenna coil and the coupling coil alone or in connection with other components operate as electric filters for frequency selectivity.
9. Device according to any one of the preceding claims, wherein the numbers *e of windings of antenna coil and coupling coil are so tuned to one another that they form a transformer for impedance and/or signal level adaptation. 20/08/02,tdl I 747.spc,6 -7- Device according to any one of the preceding claims, wherein the transformation ratio between antenna coil and coupling coil can be controlled by modifying the effective winding of the coupling coil of the control device through the connecting or disconnecting of part winding of the coupling coil.
11. Device for transmitting electrical energy and/or electrical signals in vehicle substantially as hereinbefore described with reference to the accompanying drawing. Dated this 20 th day of August, 2002. ROBERT BOSCH GMBH By their Patent Attorneys: CALLINAN LAWRIE 20/08/02,tdl 1747.spe,7
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19832911A DE19832911A1 (en) | 1998-07-22 | 1998-07-22 | Device for signal transmission in a vehicle |
| DE19832911 | 1998-07-22 | ||
| PCT/DE1999/001597 WO2000005824A2 (en) | 1998-07-22 | 1999-05-29 | Device for transmitting signals in a vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| AU5151099A AU5151099A (en) | 2000-02-14 |
| AU753316B2 true AU753316B2 (en) | 2002-10-17 |
Family
ID=7874885
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AU51510/99A Ceased AU753316B2 (en) | 1998-07-22 | 1999-05-29 | Device for transmitting signals in a vehicle |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP1145460A2 (en) |
| KR (1) | KR20010072667A (en) |
| AU (1) | AU753316B2 (en) |
| DE (1) | DE19832911A1 (en) |
| WO (1) | WO2000005824A2 (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002089354A1 (en) * | 2001-04-27 | 2002-11-07 | Commissariat A L'energie Atomique | Device for signal transmission between two contact-free relatively moving objects |
| DE102005042960A1 (en) * | 2005-09-09 | 2007-03-22 | Hella Kgaa Hueck & Co. | Electrical signal and electric power transmission device for motor vehicle, has glass structure with polyvinyl butyral adhesive film that is enclosed by two glass panels, and insulated wire arranged between two glass panels |
| US7960854B2 (en) | 2006-11-15 | 2011-06-14 | Pilkington Automotive Deutschland Gmbh | Electrical connector configured to form coupling region in automotive glazing |
| US8077100B2 (en) | 2006-11-15 | 2011-12-13 | Pilkington Automotive Deutschland Gmbh | Antenna connector |
| DE102007035310A1 (en) * | 2007-07-27 | 2009-01-29 | Conti Temic Microelectronic Gmbh | Method and device for data and / or energy transmission |
| DE102008048500A1 (en) * | 2008-09-23 | 2010-04-15 | Airbus Deutschland Gmbh | Lockable device with data and energy transmission through electromagnetic induction |
| DE102012112811A1 (en) * | 2012-12-20 | 2014-06-26 | Huf Hülsbeck & Fürst Gmbh & Co. Kg | Communication unit, system with a communication unit and method for checking an access authorization |
| DE102016213482B4 (en) * | 2016-07-22 | 2022-08-25 | Continental Automotive Technologies GmbH | Vehicle component assembly with inductive transmission |
| CN106505744B (en) * | 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 | Eliminate the aircraft electrical power supply system and its electric energy distribution method of main electric energy transmission wire harness |
| DE102017114193A1 (en) * | 2017-06-27 | 2018-12-27 | Valeo Schalter Und Sensoren Gmbh | Heating device with an induction heater for heating a motor vehicle window pane, motor vehicle device, system, and motor vehicle |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3131246A1 (en) * | 1981-08-04 | 1983-02-24 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Inductive data transmission between vehicles and route-bound devices |
| US4806943A (en) * | 1986-11-25 | 1989-02-21 | Companie Generale D'automatisme | Set of transmit/receive antennas situated at a fixed station for a two-way radio link with a vehicle |
| DE4423191A1 (en) * | 1994-07-01 | 1996-01-04 | Lindenmeier Heinz | Window pane antenna e.g. for vehicle short wave radio |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61196080A (en) * | 1985-02-21 | 1986-08-30 | 日産自動車株式会社 | Wireless user discrimination apparatus |
| US4897643A (en) * | 1986-08-11 | 1990-01-30 | Mazda Motor Corporation | Vehicular electronic equipment with door lock and side window antenna |
| DE4242549C1 (en) * | 1992-12-16 | 1994-03-17 | Hirschmann Richard Gmbh Co | Intruder detector for opening window - incorporating glass breakage detector and transformer monitoring window position |
| JPH10273015A (en) * | 1997-03-31 | 1998-10-13 | Tokai Rika Co Ltd | Transceiver for vehicle |
| DE19814460B4 (en) * | 1997-04-07 | 2010-01-07 | Marquardt Gmbh | System for signal transmission |
-
1998
- 1998-07-22 DE DE19832911A patent/DE19832911A1/en not_active Withdrawn
-
1999
- 1999-05-29 KR KR1020017000409A patent/KR20010072667A/en not_active Application Discontinuation
- 1999-05-29 AU AU51510/99A patent/AU753316B2/en not_active Ceased
- 1999-05-29 EP EP99936365A patent/EP1145460A2/en not_active Withdrawn
- 1999-05-29 WO PCT/DE1999/001597 patent/WO2000005824A2/en not_active Application Discontinuation
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3131246A1 (en) * | 1981-08-04 | 1983-02-24 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Inductive data transmission between vehicles and route-bound devices |
| US4806943A (en) * | 1986-11-25 | 1989-02-21 | Companie Generale D'automatisme | Set of transmit/receive antennas situated at a fixed station for a two-way radio link with a vehicle |
| DE4423191A1 (en) * | 1994-07-01 | 1996-01-04 | Lindenmeier Heinz | Window pane antenna e.g. for vehicle short wave radio |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2000005824A2 (en) | 2000-02-03 |
| DE19832911A1 (en) | 2000-02-10 |
| WO2000005824A3 (en) | 2002-02-14 |
| AU5151099A (en) | 2000-02-14 |
| KR20010072667A (en) | 2001-07-31 |
| EP1145460A2 (en) | 2001-10-17 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FGA | Letters patent sealed or granted (standard patent) |