EP1765610A1 - Motor vehicle wheel housing comprising an electric circuit, and assembly comprising a wheel housing and power means - Google Patents

Motor vehicle wheel housing comprising an electric circuit, and assembly comprising a wheel housing and power means

Info

Publication number
EP1765610A1
EP1765610A1 EP05754194A EP05754194A EP1765610A1 EP 1765610 A1 EP1765610 A1 EP 1765610A1 EP 05754194 A EP05754194 A EP 05754194A EP 05754194 A EP05754194 A EP 05754194A EP 1765610 A1 EP1765610 A1 EP 1765610A1
Authority
EP
European Patent Office
Prior art keywords
wheel arch
circuit
wheel
electrical circuit
assembly
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Withdrawn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
EP05754194A
Other languages
German (de)
French (fr)
Inventor
Mathieu Tupinier
Christian Jeandey
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.)
Compagnie Generale des Etablissements Michelin SCA
Michelin Recherche et Technique SA France
Original Assignee
Michelin Recherche et Technique SA Switzerland
Michelin Recherche et Technique SA France
Societe de Technologie Michelin SAS
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 Michelin Recherche et Technique SA Switzerland, Michelin Recherche et Technique SA France, Societe de Technologie Michelin SAS filed Critical Michelin Recherche et Technique SA Switzerland
Publication of EP1765610A1 publication Critical patent/EP1765610A1/en
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C23/00—Devices for measuring, signalling, controlling, or distributing tyre pressure or temperature, specially adapted for mounting on vehicles; Arrangement of tyre inflating devices on vehicles, e.g. of pumps or of tanks; Tyre cooling arrangements
    • B60C23/02—Signalling devices actuated by tyre pressure
    • B60C23/04—Signalling devices actuated by tyre pressure mounted on the wheel or tyre
    • B60C23/0408—Signalling devices actuated by tyre pressure mounted on the wheel or tyre transmitting the signals by non-mechanical means from the wheel or tyre to a vehicle body mounted receiver
    • B60C23/0483—Wireless routers between wheel mounted transmitters and chassis mounted receivers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C23/00—Devices for measuring, signalling, controlling, or distributing tyre pressure or temperature, specially adapted for mounting on vehicles; Arrangement of tyre inflating devices on vehicles, e.g. of pumps or of tanks; Tyre cooling arrangements
    • B60C23/02—Signalling devices actuated by tyre pressure
    • B60C23/04—Signalling devices actuated by tyre pressure mounted on the wheel or tyre
    • B60C23/0408—Signalling devices actuated by tyre pressure mounted on the wheel or tyre transmitting the signals by non-mechanical means from the wheel or tyre to a vehicle body mounted receiver
    • B60C23/0422—Signalling devices actuated by tyre pressure mounted on the wheel or tyre transmitting the signals by non-mechanical means from the wheel or tyre to a vehicle body mounted receiver characterised by the type of signal transmission means
    • B60C23/0433—Radio signals
    • B60C23/0435—Vehicle body mounted circuits, e.g. transceiver or antenna fixed to central console, door, roof, mirror or fender
    • B60C23/0444—Antenna structures, control or arrangements thereof, e.g. for directional antennas, diversity antenna, antenna multiplexing or antennas integrated in fenders
    • 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
    • H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
    • H01Q1/2208—Supports; Mounting means by structural association with other equipment or articles associated with components used in interrogation type services, i.e. in systems for information exchange between an interrogator/reader and a tag/transponder, e.g. in Radio Frequency Identification [RFID] systems
    • H01Q1/2241—Supports; Mounting means by structural association with other equipment or articles associated with components used in interrogation type services, i.e. in systems for information exchange between an interrogator/reader and a tag/transponder, e.g. in Radio Frequency Identification [RFID] systems used in or for vehicle tyres
    • 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

Definitions

  • the wheel arch antenna is generally integrally molded in the wheel well or glued to its surface during the manufacture of the wheel well. During the step of assembling the wheel arch on the motor vehicle, the antenna is then connected to a power supply of the vehicle by means of galvanic connections.
  • the wheel arch consists of an electrically insulating material; and the electrical circuit is bonded to the surface of the wheel well.
  • the invention also relates to an assembly of a wheel well according to the invention and means for supplying the electrical circuit of the wheel well.
  • An assembly according to the invention may optionally comprise one or more of the following features:

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Remote Sensing (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)
  • Support Of Aerials (AREA)
  • Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)

Abstract

The invention relates to a wheel housing (18) for a motor vehicle (10), comprising a closed electric circuit (20) which is integrally provided around the wheel housing (18) within a distance (26) of 3 mm therefrom. The invention also relates to an assembly comprising a wheel housing and means for powering the electric circuit.

Description

Passage de roue de véhicule automobile comprenant un circuit électrique et ensemble d'un passage de roue et de moyens d'alimentation Motor vehicle wheel arch including an electrical circuit and a wheel arch assembly and feed means
[0001] La présente invention concerne un passage de roue de véhicule automobile, comprenant un circuit électrique et un ensemble d'un passage de roue et de moyens d'alimentation.The present invention relates to a wheel arch of a motor vehicle, comprising an electric circuit and an assembly of a wheel well and supply means.
[0002] Plus précisément, l'invention concerne un passage de roue de véhicule automobile, comprenant un circuit électrique intégralement compris dans un voisinage de 3 mm du passage de roue.More specifically, the invention relates to a wheel arch of a motor vehicle, comprising an electric circuit integrally within a vicinity of 3 mm of the wheel well.
[0003] On parle de voisinage de 3 mm du passage de roue pour désigner le volume défini par l'ensemble des points situés au plus à 3 mm du passage de roue.We speak of neighborhood of 3 mm of the wheel arch to designate the volume defined by the set of points located at most 3 mm from the wheel arch.
[0004] La tendance des constructeurs automobiles est d'équiper les roues ou les pneumatiques des véhicules d'organes ayant pour fonction de fournir des informations concernant les pneumatiques à un calculateur du véhicule.The tendency of car manufacturers is to equip the wheels or tires of the organ vehicles whose function is to provide information about the tires to a vehicle calculator.
[0005] Parmi les organes possibles, on trouve par exemple des capteurs de pression, des capteurs de température ou des dispositifs d'identification des pneumatiques.Among the possible organs, there are for example pressure sensors, temperature sensors or tire identification devices.
[0006] II est connu d'utiliser une technologie radio pour faire communiquer l'organe et le calculateur. La même technologie est également utilisée pour transmettre de l'énergie à l'organe depuis un point fixe du véhicule.It is known to use a radio technology to communicate the body and the computer. The same technology is also used to transmit energy to the organ from a fixed point of the vehicle.
[0007] A cet effet, chaque passage de roue du véhicule est muni d'un circuit électriquement conducteur, désigné par la suite « circuit électrique », formant une antenne, relié par des câbles électriques au calculateur et/ou à une source d'énergie électrique tandis que l'organe est lui aussi muni d'une antenne.For this purpose, each wheel well of the vehicle is provided with an electrically conductive circuit, hereinafter referred to as an "electrical circuit", forming an antenna, connected by electrical cables to the computer and / or to a source of electricity. electrical energy while the organ is also provided with an antenna.
[0008] L'antenne du passage de roue est généralement intégralement moulée dans le passage de roue ou collée à sa surface lors de la fabrication du passage de roue. Lors de l'étape d'assemblage du passage de roue sur le véhicule automobile, l'antenne est alors reliée à une alimentation électrique du véhicule au moyen de connexions galvaniques.The wheel arch antenna is generally integrally molded in the wheel well or glued to its surface during the manufacture of the wheel well. During the step of assembling the wheel arch on the motor vehicle, the antenna is then connected to a power supply of the vehicle by means of galvanic connections.
[0009] II feut donc prévoir, au moment de l'intégration de l'antenne dans le passage de roue, des connexions reliées à l'antenne et débouchant à l'extérieur du passage de roue. Ces connexions sont souvent compliquées à réaliser lors du moulage du passage de roue, et sont sujettes à une fatigue particulièrement importante en raison des vibrations subies par le passage de roue lors d'une utilisation normale du véhicule.It is therefore expected, at the time of integration of the antenna in the wheel well, connections connected to the antenna and opening out of the wheel well. These connections are often complicated to perform during the molding of the wheel arch, and are subject to particularly high fatigue due to vibration undergone by the wheel arch during normal use of the vehicle.
[0010] De plus, ces connexions peuvent être à l'origine d'une corrosion prématurée de l'antenne qui est en contact direct avec l'air extérieur par l'intermédiaire de ces connexions.In addition, these connections can be the cause of premature corrosion of the antenna which is in direct contact with the outside air via these connections.
[0011] L'invention a pour but de remédier à ces inconvénients en fournissant un passage de roue de véhicule automobile, comprenant un circuit électrique intégralement compris dans un voisinage de 3 mm du passage de roue, dont la fabrication et l'intégration dans le véhicule sont particulièrement simples et robustes.The invention aims to overcome these disadvantages by providing a motor vehicle wheel arch, comprising an electrical circuit integrally in a vicinity of 3 mm of the wheel arch, the manufacture and integration in the vehicle are particularly simple and robust.
[0012] A cet effet, l'invention a pour objet un passage de roue de véhicule automobile comprenant un circuit électrique intégralement compris dans un voisinage de 3 mm du passage de roue, caractérisé en ce que le circuit est fermé.For this purpose, the invention relates to a wheel arch of a motor vehicle comprising an electric circuit integrally in a vicinity of 3 mm of the wheel well, characterized in that the circuit is closed.
[0013] Le circuit électrique du passage de roue de l'invention est un circuit fermé intégralement compris dans un voisinage de 3 mm du passage de roue. Par conséquent, ce circuit électrique, qui est destiné à être utilisé comme antenne, n'est pas galvaniquement relié à une alimentation électrique.The electrical circuit of the wheel well of the invention is a closed circuit integrally within a vicinity of 3 mm of the wheel well. Therefore, this electric circuit, which is intended to be used as an antenna, is not galvanically connected to a power supply.
[0014] L'alimentation électrique du circuit électrique est réalisée par couplage magnétique. On utilise pour cela un circuit électrique de couplage, désigné par la suite « circuit de couplage », relié galvaniquement à une alimentation électrique, ce circuit de couplage étant disposé en regard du circuit électrique du passage de roue de manière à assurer le couplage magnétique. [0015] Grâce à l'invention, le circuit électrique constituant l'antenne du passage de roue n'est pas relié galvaniquement à une alimentation électrique et peut par conséquent être intégré de manière simple au passage de roue lors de sa fabrication. L'absence de connexions augmente la durée de vie du circuit électrique du passage de roue en limitant les effets de la fatigue ou de la corrosion.The power supply of the electrical circuit is made by magnetic coupling. For this purpose, an electrical coupling circuit, hereinafter referred to as a "coupling circuit", galvanically connected to a power supply is used, this coupling circuit being arranged facing the electrical circuit of the wheel well so as to ensure the magnetic coupling. Thanks to the invention, the electric circuit constituting the wheel arch antenna is not galvanically connected to a power supply and can therefore be integrated in a simple way to the wheel housing during its manufacture. The lack of connections increases the life of the electrical circuit of the wheel arch by limiting the effects of fatigue or corrosion.
[0016] Dans un mode de réalisation particulier, le circuit électrique est noyé intégralement dans la masse du passage de roue. De cette manière, le circuit électrique est totalement protégé des agressions extérieures.In a particular embodiment, the electrical circuit is embedded entirely in the mass of the wheel well. In this way, the electrical circuit is completely protected from external aggressions.
[0017] Dans le cas où le circuit électrique est noyé dans la masse du passage de roue, il est avantageux de munir la surface radialement externe du passage de roue d'au moins un repère conformé de manière à visualiser la position du circuit électrique. Ce repère permet un positionnement précis du circuit de couplage par rapport au circuit électrique du passage de roue. La précision du positionnement est importante car la variation géométrique entre ces deux circuits permet une adaptation en impédance du circuit électrique.In the case where the electric circuit is embedded in the mass of the wheel well, it is advantageous to provide the radially outer surface of the wheel well of at least one shaped mark so as to display the position of the electric circuit. This mark allows precise positioning of the coupling circuit with respect to the electrical circuit of the wheel well. The positioning accuracy is important because the geometric variation between these two circuits allows impedance matching of the electrical circuit.
[0018] Grâce àΦ" invention, il devient possible, lors d'études préalables, de spécifier' la position relative des deux circuits électriques et de positionner le repère sur le passage de roue à des fins de gabaritage, de manière à simplifier le montage du passage de roue et de son alimentation lors de la production.Thanks to the invention, it becomes possible, during preliminary studies, to specify the relative position of the two electrical circuits and to position the marker on the wheel well for the purposes of gapping, so as to simplify the assembly. wheel arch and its feed during production.
[0019] Dans un mode de réalisation particulier, le circuit électrique est constitué par un fil électriquement conducteur, désigné par la suite « fil électrique », formant au moins une boucle plane fermée sur une capacité d'accord, de préférence deux ou trois boucles. En agissant sur la valeur de la capacité d'accord, on peut fixer la fréquence de rayonnement du circuit électrique. Pour une fréquence de rayonnement du circuit électrique de l'ordre de 13,56 MHz, on utilise une capacité de 30 pF.In a particular embodiment, the electrical circuit is constituted by an electrically conductive wire, hereinafter referred to as "electrical wire", forming at least one closed plane loop on a tuning capacity, preferably two or three loops. . By acting on the value of the tuning capacity, it is possible to set the radiation frequency of the electric circuit. For a radiation frequency of the electrical circuit of the order of 13.56 MHz, a capacitance of 30 pF is used.
[0020] Le circuit électrique étant destiné à être utilisé dans un environnement particulièrement rigoureux, il est avantageux qu'il soit constitué par un fil coaxial comprenant un brin central électriquement conducteur, une gaine isolante et une gaine - A -The electrical circuit being intended to be used in a particularly rigorous environment, it is advantageous that it be constituted by a coaxial wire comprising an electrically conductive central strand, an insulating sheath and a sheath. - AT -
extérieure de blindage interrompue au niveau de la capacité d'accord. Le blindage permet d'avoir une antenne peu sensible aux effets environnementaux comme par exemple la présence d'eau sous le passage de roue.outer armor interrupted at the tuning capacity. The shielding makes it possible to have an antenna which is not very sensitive to environmental effects, for example the presence of water under the wheel arch.
[0021] Le blindage permet également de minimiser le champ électrique à l'origine d'effets capacitifs, tout en conservant le rayonnement du champ magnétique grâce à l'ouverture du blindage sur quelques millimètres au voisinage de la capacité d'accord.The shielding also minimizes the electric field at the origin of capacitive effects, while retaining the radiation of the magnetic field by opening the shield a few millimeters in the vicinity of the tuning capacity.
[0022] De manière à augmenter l'effet du blindage, il est avantageux de relier la gaine extérieure de blindage à la masse.In order to increase the effect of the shielding, it is advantageous to connect the outer shielding sheath to the ground.
[0023] Un passage de roue selon l'invention peut en outre comporter l'une ou plusieurs des caractéristiques suivantes :A wheel arch according to the invention may further comprise one or more of the following features:
- le passage de roue est constitué d'un matériau électriquement isolant ; et - le circuit électrique est collé à la surface du passage de roue.the wheel arch consists of an electrically insulating material; and the electrical circuit is bonded to the surface of the wheel well.
[0024] L'invention a également pour objet un ensemble d'un passage de roue selon l'invention et de moyens d'alimentation du circuit électrique du passage de roue.The invention also relates to an assembly of a wheel well according to the invention and means for supplying the electrical circuit of the wheel well.
[0025] Un ensemble selon l'invention peut en outfe comporter l'une ou plusieurs des caractéristiques suivantes :An assembly according to the invention may optionally comprise one or more of the following features:
- l'alimentation du circuit électrique est réalisée par couplage magnétique ; - les moyens d'alimentation comprennent un circuit de couplage disposé en regard du circuit électrique du passage de roue pour assurer le couplage magnétique ; et - le coefficient de couplage entre le circuit électrique du passage de roue et le circuit de couplage est compris entre 0,4 et 0,6.the supply of the electric circuit is carried out by magnetic coupling; - The power supply means comprise a coupling circuit disposed opposite the electrical circuit of the wheel well for magnetic coupling; and the coupling coefficient between the electric circuit of the wheel well and the coupling circuit is between 0.4 and 0.6.
[0026] L'invention sera mieux comprise à la lecture de la description qui va suivre, donnée uniquement à titre d'exemple et faite en se référant aux dessins annexés dans lesquels :The invention will be better understood on reading the description which follows, given solely by way of example and with reference to the accompanying drawings, in which:
- la figure 1 est un schéma détaillé d'un avant de véhicule vu de côté, muni d'un passage de roue selon l'invention ; et - la figure 2 est un schéma du passage de roue représenté sur la figure 1 vu du dessus. [0027] On a représenté sur la figure 1 l'avant d'un véhicule, désigné par la référence générale 10. Ce véhicule 10, qui est une voiture dans l'exemple représenté, comporte des ensembles montés constitués chacun par une roue 14 et un pneumatique 16, et seul l'ensemble monté 12 avant droit est représenté.- Figure 1 is a detailed diagram of a vehicle front seen from the side, provided with a wheel arch according to the invention; and - Figure 2 is a diagram of the wheel well shown in Figure 1 seen from above. FIG. 1 shows the front of a vehicle, designated by the general reference 10. This vehicle 10, which is a car in the example shown, comprises mounted assemblies each constituted by a wheel 14 and a tire 16, and only the right front mounted assembly 12 is shown.
[0028] L'ensemble monté 12 est intégré à la voiture 10 sous un passage de roue 18 de faible épaisseur obtenu classiquement par moulage de matière plastique.The mounted assembly 12 is integrated with the car 10 under a wheel arch 18 of small thickness conventionally obtained by molding plastic material.
[0029] Le passage de roue 18 comprend un circuit électrique 20 formant une antenne destinée à interagir avec un organe 22 porté par la roue 14.The wheel arch 18 comprises an electric circuit 20 forming an antenna intended to interact with a member 22 carried by the wheel 14.
[0030] L'organe 22 est un capteur de pression 22 fixé à la roue 14 par des moyens classiques. Le capteur de pression 22 comprend des moyens d'émission et/ou de réception destinés à permettre un échange de données par voie hertzienne avec l'antenne 20.The member 22 is a pressure sensor 22 fixed to the wheel 14 by conventional means. The pressure sensor 22 comprises transmitting and / or receiving means intended to allow a data exchange by radio with the antenna 20.
[0031] Comme représenté sur la figure 2, l'antenne 20 est constituée par un fil électrique formant deux boucles planes. Le fil électrique formant l'antenne est fermé sur lui-même par l'intermédiaire d'une capacité d'accord 24.As shown in Figure 2, the antenna 20 is constituted by an electric wire forming two flat loops. The electric wire forming the antenna is closed on itself by means of a tuning capacitor 24.
[0032] L'antenne étant prévue pour rayonner à la fréquence de 13,56 MHz, sa longueur est de 350 mm, sa largeur est de 150 mm, et la distance entre les boucles est de 15 mm. La longueur totale du fil électrique formant l'antenne est d'environ 2,5 m.The antenna is designed to radiate at the frequency of 13.56 MHz, its length is 350 mm, its width is 150 mm, and the distance between the loops is 15 mm. The total length of the electrical wire forming the antenna is about 2.5 m.
[0033] L'antenne 20 est plane et est noyée dans la masse du passage de roue 18, si bien que l'antenne est intégralement comprise dans un voisinage 26 de 3 mm du passage de roue 18. Ce voisinage 26 est représenté en pointillés sur la figure 1.The antenna 20 is flat and is embedded in the mass of the wheel arch 18, so that the antenna is integrally in a vicinity 26 of 3 mm of the wheel arch 18. This vicinity 26 is shown in dashed lines in Figure 1.
[0034] Pour permettre la localisation de l'antenne, même lorsque celle-ci est invisible car noyée dans la masse du passage de roue 18, le passage de roue comporte au moins un repère 28 visible à sa surface et obtenu par moulage. Dans l'exemple représenté sur la figure 2, le repère 28 marque le centre de l'antenne 20. [0035] Pour que seul un champ magnétique rayonne à l'extérieur de l'antenne 20, et pour limiter le rayonnement du champ électrique, l'antenne est munie d'une gaine extérieure de blindage 30 reliée à la masse et représentée en pointillés sur la figure 2. Cette gaine extérieure de blindage 30 est interrompue au niveau de la capacité d'accord 24 pour permettre à l'antenne 20 de rayonner un champ magnétique.To allow the location of the antenna, even when it is invisible because embedded in the mass of the wheel well 18, the wheel housing has at least one mark 28 visible on its surface and obtained by molding. In the example shown in FIG. 2, the mark 28 marks the center of the antenna 20. For only a magnetic field to radiate outside the antenna 20, and to limit the radiation of the electric field, the antenna is provided with an outer shielding sheath 30 connected to the ground and shown in dashed lines This outer shield sheath 30 is interrupted at the level of the tuning capacitance 24 to allow the antenna 20 to radiate a magnetic field.
[0036] L'alimentation de l'antenne 20 est réalisée par couplage magnétique au moyen d'un circuit de couplage 32 disposé en regard de l'antenne 20 du passage de roue 18.The antenna 20 is supplied by magnetic coupling by means of a coupling circuit 32 arranged facing the antenna 20 of the wheel arch 18.
[0037] Le circuit de couplage 32 est constitué par une boucle conductrice reliée galvaniquement à des moyens d'alimentation 34 portés par la voiture 10.The coupling circuit 32 is constituted by a conductive loop electrically connected to power supply means 34 carried by the car 10.
[0038] Le positionnement du circuit de couplage 32 par rapport à l'antenne 20 du passage de roue 18 est obtenu avec précision grâce au repère 28 de la surface du passage de roue 18.The positioning of the coupling circuit 32 relative to the antenna 20 of the wheel arch 18 is obtained precisely by virtue of the reference 28 of the surface of the wheel arch 18.
[0039] La variation géométrique entre l'antenne 20 et le circuit de couplage 32 permet l'adaptation de l'antenne 20 en impédance.The geometric variation between the antenna 20 and the coupling circuit 32 allows the adaptation of the antenna 20 in impedance.
[0040] De préférence, le couplage magnétique est un couplage en induction dont le coefficient de couplage est compris entre 0,4 et 0,6.Preferably, the magnetic coupling is an induction coupling whose coupling coefficient is between 0.4 and 0.6.
[0041] L'utilisation d'un circuit de couplage offre l'avantage d'une simplicité de réglage par rapport à une antenne à couplage galvanique, car Pantenne de couplage est flottante. On élimine de plus les pertes diélectriques ce qui rend l'antenne moins sensible aux perturbations extérieures. The use of a coupling circuit offers the advantage of a simplicity of adjustment with respect to a galvanically coupled antenna, because coupling coupling is floating. In addition, the dielectric losses are eliminated, which makes the antenna less sensitive to external disturbances.

Claims

REVENDICATIONS
1. Passage de roue (18) de véhicule automobile (10), comprenant un circuit électrique (20) intégralement compris dans un voisinage (26) de 3 mm du passage de roue (18), caractérisé en ce que le circuit (20) est fermé.Motor vehicle wheel arch (18) (10), comprising an electrical circuit (20) integrally in a vicinity (26) of 3 mm from the wheel arch (18), characterized in that the circuit (20) is closed.
2. Passage de roue (18) selon la revendication 1, dans lequel le circuit électrique (20) est constitué par un fil électrique formant au moins une boucle plane fermée sur une capacité d'accord (24), de préférence deux ou trois boucles.Wheel arch (18) according to claim 1, in which the electric circuit (20) consists of an electric wire forming at least one closed flat loop on a tuning capacitor (24), preferably two or three loops. .
3. Passage de roue (18) selon la revendication 2, dans lequel le circuit électrique (20) est constitué par un fil coaxial comprenant un brin central électriquement conducteur, une gaine isolante et une gaine (30) extérieure de blindage interrompue au niveau de la capacité d'accord (24).Wheel arch (18) according to claim 2, in which the electric circuit (20) consists of a coaxial wire comprising an electrically conductive central strand, an insulating sheath and an outer shielding sheath (30) interrupted at the level of the ability to agree (24).
4. Passage de roue (18) selon la revendication 3, dans lequel la gaine (30) extérieure de blindage est reliée à la masse.4. Wheel arch (18) according to claim 3, wherein the outer sheath (30) shielding is connected to ground.
5. Passage de roue (18) selon l'une quelconque des revendications 1 à 4, constitué d'un matériau électriquement isolant.5. wheel arch (18) according to any one of claims 1 to 4, consisting of an electrically insulating material.
6. Passage de roue (18) selon l'une quelconque des revendications 1 à 5, dans la masse duquel est noyé le circuit électrique (20).6. Wheel arch (18) according to any one of claims 1 to 5, in the mass of which is embedded the electrical circuit (20).
7. Passage de roue (18) selon la revendication 6, dont la surface comprend au moins un repère (28) conformé de manière à visualiser la position du circuit électrique (20) noyé dans le passage de roue (18).7. Wheel arch (18) according to claim 6, the surface comprises at least one mark (28) shaped so as to display the position of the electric circuit (20) embedded in the wheel well (18).
8. Passage de roue (18) selon l'une quelconque des revendications 1 à 5, à la surface duquel est collé le circuit électrique (20). 8. Wheel arch (18) according to any one of claims 1 to 5, on the surface of which is bonded the electrical circuit (20).
9. Ensemble d'un passage de roue (18) selon l'une quelconque des revendications 1 à 8, et de moyens d'alimentation (32, 34) du circuit électrique (20) du passage de roue (18).9. A set of a wheel arch (18) according to any one of claims 1 to 8, and supply means (32, 34) of the electric circuit (20) of the wheel arch (18).
10. Ensemble selon la revendication 9, dans lequel l'alimentation du circuit électrique (20) est réalisée par couplage magnétique.10. The assembly of claim 9, wherein the power supply of the electrical circuit (20) is made by magnetic coupling.
11. Ensemble selon la revendication 10, dans lequel les moyens d'alimentation (32, 34) comprennent un circuit de couplage (32) disposé en regard du circuit électrique (20) du passage de roue (18) pour assurer le couplage magnétique.11. The assembly of claim 10, wherein the supply means (32, 34) comprises a coupling circuit (32) disposed opposite the electrical circuit (20) of the wheel well (18) to ensure the magnetic coupling.
12. Ensemble selon la revendication 11, dans lequel le coefficient de couplage entre le circuit électrique (20) du passage de roue et le circuit de couplage (32) est compris en 0,4 et 0,6. 12. The assembly of claim 11, wherein the coupling coefficient between the electrical circuit (20) of the wheel well and the coupling circuit (32) is 0.4 and 0.6.
EP05754194A 2004-06-29 2005-06-24 Motor vehicle wheel housing comprising an electric circuit, and assembly comprising a wheel housing and power means Withdrawn EP1765610A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0407183A FR2872116B1 (en) 2004-06-29 2004-06-29 AUTOMOTIVE VEHICLE WHEEL PASSAGE COMPRISING AN ELECTRIC CIRCUIT AND ASSEMBLY OF A WHEEL PASSAGE AND FEED MEANS
PCT/EP2005/052959 WO2006000572A1 (en) 2004-06-29 2005-06-24 Motor vehicle wheel housing comprising an electric circuit, and assembly comprising a wheel housing and power means

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EP1765610A1 true EP1765610A1 (en) 2007-03-28

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EP05754194A Withdrawn EP1765610A1 (en) 2004-06-29 2005-06-24 Motor vehicle wheel housing comprising an electric circuit, and assembly comprising a wheel housing and power means

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US (1) US7777620B2 (en)
EP (1) EP1765610A1 (en)
JP (1) JP2008504171A (en)
CN (1) CN100484783C (en)
FR (1) FR2872116B1 (en)
WO (1) WO2006000572A1 (en)

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Also Published As

Publication number Publication date
FR2872116A1 (en) 2005-12-30
JP2008504171A (en) 2008-02-14
US7777620B2 (en) 2010-08-17
US20070222567A1 (en) 2007-09-27
FR2872116B1 (en) 2006-10-20
WO2006000572A1 (en) 2006-01-05
CN1976822A (en) 2007-06-06
CN100484783C (en) 2009-05-06

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