• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
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    • 专利摘要:
    A pneumatic tire (1) equipped with a passive transponder (150), comprising at least one radiating antenna (151) embedded in an electrically insulating elastomeric mixture to form a patch (100) for communication with a radio frequency reader located at the outside of the tire (1). This patch (100) extends, on the one hand, axially between the axially inner end of the carcass ply (3) and the inner surface (13) of the tire (1), and on the other hand radially to a distance between that of the rubber tip (7) and that of the radially outer end of the rod (12).
    公开号:FR3041285A1
    申请号:FR1558819
    申请日:2015-09-18
    公开日:2017-03-24
    发明作者:Philippe Lallement；Julien Destraves；Frederic Marques；Michel Blondelet；Johan Desmoulin
    申请人:Michelin Recherche et Technique SA Switzerland ；Compagnie Generale des Etablissements Michelin SCA；Michelin Recherche et Technique SA France；
    IPC主号:
    专利说明:

    PNEUMATIC HAVING PASSIVE TRANSPONDER AND METHOD FOR COMMUNICATING SUCH PNEUMATIC
    FIELD OF THE INVENTION [0001] The present invention relates to pneumatic tires for heavy goods vehicles or construction machinery equipped with identification and communication devices, and the methods of communication of such objects.
    BACKGROUND [0002] For the field of identification and communication devices, RFID passive radio frequency transponders (acronym for Radio Frequency Identification) are conventionally used, in particular for tires. These devices enable more reliable and faster automated management of objects by facilitating their identification, monitoring and management. Some, equipped with advanced functions, also allow to obtain physical quantities of the object such as the temperature or the pressure of inflation in the case of the tires guaranteeing the good use of these objects during their life cycle. Subsequently we will name all of these devices by the generic term "passive electronic communication device" or "passive transponder".
    These passive communication electronic devices generally consist of at least one electronic chip and an antenna formed by a magnetic loop or a radiating antenna that is fixed to the object to be identified. Depending on the radiofrequency band of communication of these electronic devices, one or other of the antennas is preferred. Traditionally in the tire industry, the passive transponder communication frequency band is the Ultra High Frequency (UHF) band requiring the use of a radiating antenna.
    The integration of such electronic devices communicating in the tire must meet certain requirements. On the one hand, since the tire is subjected to high thermo-mechanical stresses, the integration of a communicating electronic device must not cause the endurance of the tire or the electronic device to deteriorate and, in particular, the radiant antenna. On the other hand, the communication performance of the electronic device must be sufficient to easily interrogate the electronic device regardless of the conditions of use, in particular by the outside of the tire.
    Thus the location of the communicating electronic device must meet these constraints. First of all, the integration in a zone of low thermomechanical solicitations of the tire is preferable so as not to generate strong constraints on the electronic device. In particular, as pneumatic tires for construction machines are subjected to severe conditions of rolling on any type of road or road, the risk of puncture or loss of inflation pressure causing flattening of the tire increases. In these cases of application, the location of the electronic device must not further damage the tire. In addition, a zone without excessive electromagnetic interference caused by the presence of metal in the tire is preferable for radiocommunication performance.
    It is known in the state of the art, including from EP 1977912 Bl, a tire equipped with such an electronic passive communication device. The device is housed between two masses of insulating gum and of suitable rigidity before being positioned inside the tire on the outer part of the tire with respect to the metal carcass ply. This position favors the radio frequency communication performance of the passive transponder by not interposing a metal zone between the radio frequency reader and the passive transponder.
    However, this electronic device is still in an area of high mechanical stress leading to use specific radiating antennas. In addition, the electronic device, thus disposed is not completely immune to mechanical damage related to the projection of various objects that may be encountered in severe driving condition on the road. Finally, this technical solution is only possible by directly incorporating the electronic device during the manufacture of the tire.
    Similarly, according to the patent application EP 2873540 A1, a communicating electronic device meeting these technical constraints is proposed. The electronic device is integrated in the lower zone of the tire undergoing lower mechanical deformation levels than the top block or the sidewall. More specifically, it is positioned above the rod radially and is fixed on the inner wall of the tire. This area effectively protects the electronic device against shocks generated by objects propelled on the tire during use.
    However, the electronic device of this document is not a passive transponder searchable by a reader placed outside the tire.
    The present invention aims to provide a tire equipped with an electronic passive communication device responding to the constraints of use and communication of pneumatic tires for trucks and construction equipment.
    In the following, the reading will be easier by introducing the following definitions. Here is meant by the reference axis, the axis of rotation of the tire. The vertical direction is the normal direction to the contact surface between the tire and the ground in condition of use of the tire while moving away from the ground. The center of the tire is the intersection between the reference axis and the median plane of the tire. This geometric point corresponds to the origin of the axes.
    The axial direction will be the direction parallel to the reference axis away from the center of the tire to the outer side of the tire where are marked the normative marking of the tire. The radial direction is a direction perpendicular to the reference axis away from the reference axis. The circumferential direction is the direction orthogonal to the axial and radial directions. The azimuth of a geometric point is the angle formed by the vertical and radial directions.
    Description of the invention [0013] The subject of the invention is a pneumatic tire equipped with a passive transponder. The tire is of toroidal shape, defining at all points the axial, radial and circumferential directions, with a radially inner surface and a radially outer surface and comprising an apex, two flanks and two beads. Each bead has at least one annular ring of revolution about a reference axis defining the axial direction from the center of the tire, at least one carcass ply of toroidal shape, at least one inner liner, at least one protector. This toroidal shaped protector consists of at least one layer of elastomeric mixture placed radially inside the bead wire, the carcass ply and the inner liner. This protector has a first end, located axially inner and radially outwardly, and a second end called rubber tip axially located internally and radially internally. The passive transponder comprises at least one metal strand, forming a radiating antenna and defining a longitudinal axis, electrically coupled to an electronic chip. The longitudinal axis is positioned substantially perpendicular to the son of the carcass ply. The passive transponder is embedded in an elastomeric mixture electrically insulating to form a patch. This patch has on its periphery a first face located axially externally, and a second face located axially inside, substantially perpendicular to the reference axis. This patch also defines a first end located radially inwardly, respectively a second end located radially outwardly, which corresponds to the minimum distance, respectively the maximum distance, between the patch and the reference axis. This tire is characterized in that at least one of the faces of the patch extends axially between the axially inner end of the carcass ply and the inner surface of the tire and in that at least one of ends of the patch extends radially at a distance between that of the rubber tip and that of the radially outer end of the rod.
    The term "inner liner" (inner liner) means a layer of sealed sum in contact with the air of the internal cavity of the pneumatic bandase. In the case of pneumatic tires for heavy goods vehicles or construction machinery, the carcass ply generally comprises metal reinforcing threads.
    [0015] Contrary to the teaching of the cited documents of the state of the art, the positioning of the passive transponder according to the invention allows the latter good communication with a radio frequency reader located outside the tire in spite of close metallic masses as well as excellent protection against all the thermomechanical solicitations of the tire.
    This location also allows the use of a less sophisticated radiant antenna since the thermomechanical stresses it must undergo are lower.
    Preferably the electrical coupling between the radiating antenna and the electronic chip is achieved by means of an additional antenna electrically connected to the electronic chip and inductively coupled to the radiating antenna.
    In this case, the endurance of the electronic device according to the invention is improved since the mechanical connections between the electronic chip and the radiating antenna are removed. Thus, the thermomechanical stresses that the radiating antenna undergoes do not generate high mechanical stresses at the level of the rest of the electronic device.
    According to a preferred embodiment, the radiofrequency transponder's radiating antenna is a half-wave dipole antenna. [0020] This type of antenna makes it possible to obtain a large territory coverage in a plane, for example the radial plane. a pneumatic tire radial type, since the field radiated by this type of antenna is similar to an omnidirectional plane wave perpendicular to the axis of the antenna. In addition, it is also a simple antenna to achieve because of its monodirectional geometry.
    Preferably, the radiating antenna of the electronic device is helically shaped.
    Thus, the mechanical endurance of the electronic device is enhanced by facilitating mechanical deformations of the radiating antenna without impacting its operation. Although positioned in an area of low thermomechanical stresses in use condition, the incorporation of the electronic device into the tire prior to conformation or cooking operations may cause the radiating antenna to undergo substantial thermomechanical deformations that it supports more easily through this geometric form.
    Advantageously, the patch comprises an electrically insulating elastomer mixture thickness of between 1.5 and 5 millimeters, preferably between 2 and 4 millimeters.
    Thus, the electronic device and in particular the radiating antenna is electrically isolated from any conductive material that would interfere with the transmission of radio frequency waves between the UHF reader and the radiating antenna. The term "electrically insulating" is understood here to mean that the electrical conductivity of the elastomer mixture is below the percolation threshold of the conductive fillers of the mixture.
    Preferably, the distance between the face situated axially outside the patch and the radiating antenna of the passive transponder is at least 1 millimeter.
    The face defined here is necessarily the geometric part of the most deeply anchored patch within the tire. By incorporating a minimum thickness of electrically insulating material according to this dimension, between the radiating antenna of the passive transponder and the elastomer mixtures of the tire containing conductive fillers such as carbon black, the correct operation of the radiating antenna is ensured. vis-à-vis the radio waves with which it communicates. This feature therefore enhances the communication performance of the passive transponder.
    In a particular embodiment, the distance between the axially inner face of the patch and the radiating antenna of the passive transponder is at least 0.5 millimeters.
    The face located axially internally of the patch corresponds to the area less enveloped by the conductive fillers of the elastomeric mixtures of the tire. Thus, a thickness of 0.5 millimeters of elastomer electrically insulating is then sufficient to ensure normal operation of the radiating antenna of the electronic device vis-à-vis the electrical interference generated by its conductive charges.
    In a preferred embodiment, the electronic chip being connected to a printed circuit for constituting the electronic card, the printed circuit comprises other additional active or passive electronic components.
    Thus, the functions of the passive transponder are increased by the addition of components such as a memory or sensors of any kind. The interrogation or the transmission of the data of the electronic card being ensured by the radiating antenna.
    Preferably, the radially inner end of the patch is located radially at a distance, at least five millimeters, from the gum tip of the protector.
    Thus, the endurance of the electronic device is found to be reinforced since the contact zone between the rim and the tire potentially highly stressed during the use of the tire is not the location of the electronic device. .
    According to a preferred embodiment, the patch is fixed at the face located axially externally on the inner surface of the tire.
    Thus, the electronic device contained in the patch can be inserted into the tire after its manufacture. As a result, the mechanical specifications of the components of the electronic device are more flexible allowing the use of simpler and less expensive technical solutions.
    According to a very specific embodiment, the patch is positioned on the inner surface of the tire between the rubber tip and the end located radially outwardly and axially inside the protector.
    In this case, the patch is fixed entirely on a single component of the tire, in particular the protector, which makes it homogeneous chemically and mechanically the entire connection between the tire and the patch. Therefore, avoiding the connection areas with different components such for example the inner liner and the protector, the mechanical endurance of the connection between the patch and the tire is reinforced.
    Preferably, the patch may consist of an elastomeric mixture based on natural rubber, butyl or ethylene-propylene-diene-monomer.
    In the case of pneumatic tires on site that can be brought into contact with tire life, the patch is advantageously based on ethylene-propylene-diene-monomer. This elastomer is indeed resistant to the constituent glycol of this tire life.
    According to a particular embodiment, the patch is attached to the inner surface of the tire by a connecting rubber having a thickness of at least 0.5 millimeters.
    The invention also relates to a method of communication of such a tire in which, the tire being mounted on a metal wheel and inflated to the operating pressure, the following steps are carried out: UHF radiofrequency reader comprising a radiating antenna; the pneumatic tire is marked with the angular position of implantation of the radio frequency transponder; positioning the UHF radiofrequency reader perpendicularly to the tire by positioning the radiating antenna in contact on the outer surface at the radial implantation plane of the passive transponder; the outer surface is swept radially from the mid-height of the tire towards the reference axis; and the information transmitted by the passive transponder is recorded in response to the interrogation signal of the radio frequency reader.
    Here, the reading system and the radiating antenna radiofrequency reader are configured at the operating frequency of the passive transponder wrapped in an elastomer electrically insulating mixture. Thus, the reading from the outside of the tire is possible while the skilled person does not expect to receive, regardless of the power emitted by the radio frequency reader and eligible according to ETSI 302 208, signals in response from the passive transponder by placing the patch in this geographical area of the tire.
    Brief description of the drawings The invention will be better understood on reading the description of the drawings which follows. These descriptions are given by way of example only and with reference to the appended figures in which: FIG. 1 shows a three-dimensional section of a tire; • Figure 2 shows a perspective view in the rotating reference with tearing at the low zone of a tire according to the invention; • Figure 3 shows a radial sectional view at the low zone of a tire according to the invention; • Figure 4 shows an exploded view of a patch according to the invention; FIG. 5 presents a graph of the radioactive activation power transmitted to a radio frequency transponder placed in the tire according to the invention as a function of the observation frequency band.
    DETAILED DESCRIPTION OF EMBODIMENTS In the following, the terms "pneumatic" and "pneumatic tire" are used in an equivalent manner and relate to any type of pneumatic or non-pneumatic tire (in English "tire", "pneumatic tire" FIG. 1 shows a section of a pneumatic tire 1 according to the invention comprising an apex S extended by two flanks F and ending in two beads B. In this case, the pneumatic 1 is intended to be mounted on a wheel 8 of heavy vehicle type or construction machine, which is not shown in this figure, at the two beads B. Thus delimits a closed cavity C, containing at least a fluid under pressure, delimited by both the inner surface 13 of the tire 1 and the outer surface of the wheel 8 of the vehicle.
    It will be noted reference tax 201 corresponding to the natural rotational speed of the tire and the median plane 211, perpendicular to reference tax 201 and equidistant from the two beads. The intersection of the reference axis 201 by the median plane 211 determines the center of the tire 200. A Cartesian coordinate system will be defined at the center of the tire 200 consisting of the reference axis 201, a perpendicular vertical axis 203 on the ground and a longitudinal axis 202 perpendicular to the other two axes. And, we define the axial plane 212 passing through the reference axis 201 and the longitudinal axis 202, parallel to the ground plane and perpendicular to the median plane 211 Finally we will call vertical plane 213, the plane perpendicular to both the median plane 211 and the axial plane 212 passing through the vertical axis 203.
    Any material point of the tire 1 is defined in a unique manner by its cylindrical coordinates (Y, R, Θ). The scalar Y represents the axial distance at the center of the tire 200 in the reference axis direction 201 defined by the orthogonal projection of the material point of the tire 1 on the reference axis 201. A radial plane 214 forming an angle Θ will be defined. relative to the vertical plane 213 around reference speed 201. The material point of the tire 1 is marked in this radial plane 214 by the distance R at the center of the tire in the direction perpendicular to the reference tax 201 identified by the orthogonal projection. of this material point on Radial Tax 204.
    Figure 2 shows a perspective view with tear of a bead B observed from the cavity C of the tire 1 according to the invention. This bead B comprises an annular rod 2 made of metal and various elastomer components including a carcass ply 3, an inner liner 4, a protector 6, a bead filler 5 and a flank 11. The orientation of the metal reinforcing wires 15 of the carcass ply 3 is indicated by the dashed lines. The son 15 are here radially oriented which corresponds to a pneumatic tire 1 of the radial type. There is clearly a distinction between the rubber tip 7 and the radially outer and axially inner end 9 of the protector 6. This tire also has a patch 100 including a passive transponder 150 comprising a radiating antenna 151 consisting of two metal strands of equal length incremented a and b and at least one electronic chip 152 coupled to the radiating antenna 151 and coated by a mass 180 rigid and electrically insulating based, for example, epoxy resin. The longitudinal axis 101 of the interface 100 is defined by the axis of the radiating antenna 151 of the electronic device 150. In this tire example 1, the patch 100 is positioned circumferentially. The patch 100 comprises, due to tearing, a first mass 121 and a second mass 122 of electrically insulating elastomeric material and of rigidity adapted to the elastomeric components of the bead B surrounding the electronic device 150. Here the axially outer face 131 of the patch 100 is positioned on the carcass ply 3. Axially, this face 131 is located at the minimum of the axial positions of the carcass ply 3. Radially, the lower ends 141 and top 142 of patch 100, in the radial direction, are placed at a distance between that of the rubber tip 7 and the upper end of the rod 12. The patch 100 is covered by the inner liner 4 of the tire 1 at the axially inner face 132. Thus this example corresponds to the insertion total of a patch 100 comprising a passive transponder 150, inside the structure of the tire 1.
    Figure 3 corresponds to a section in the radial plane 214 of a tire 1 passing through the patch 100 at the bead B and a portion of the sidewall F below the mid-height of the tire 1 where the cut ends vertically. This tire 1, mounted on a wheel 8 and inflated to the operating pressure comprises an annular rod 2 made of metal and various elastomeric components including a carcass ply 3, an inner liner 4, a protector 6, a bead filler 5 and a sidewall 11. The orientation of the wires 15 of the carcass ply 3 is defined by the dashed lines. These son 15 are positioned in the radial plane 214 corresponding to a radial-type tire.
    The patch 100 whose longitudinal axis 101, defined by the radiating antenna 151 is in our application case perpendicular to the radial plane 214, here comprises a passive transponder 150 embedded in an electrically insulating elastomer mixture, and a rubber linkage 123 nartiellement covering the elastomer mixture. This connecting rubber 123 is positioned on the inner surface 13 of the tire 1 at the level of the protector 6. More specifically, it is situated between the tip 7 of the rubber and the radially outer and axially inner end 9 of the protector 6 at a substantially radial distance D of the rubber tip 7 in contact with the wheel 8. This distance D is obtained by the difference in the radial positions between the radially lower end 141, denoted R141, of the patch 100 and the rubber tip 7, denoted R7. The electrically insulating elastomeric mixture whose stiffness measured in Shore A is between 30 and 80, is preferably made of EPDM. The bonding rubber 123 is usually based on natural rubber. The axial position of the radially outer face 131 and inner face 132, denoted U1 and U132, of the patch 100 is defined as the average of the axial distances of the face obtained by orthogonal projection on the reference axis 201. Here, the two faces 131 and 132 of the patch 100 are axially located at a distance less than the axially inner end of the carcass ply 3, denoted U3, between the mid-height of the tire 1 and the wheel 8. In our case, the two radially inner ends 141 and outer 142 of the patch 100 are located at a radial distance R between that of the rubber tip 7, denoted R7, and that of the radially outer and axially inner end 9 of the protector 6, denoted R9, all being lower than the radial position of the radially outer end of the rod 12, denoted R12.
    Figure 4 is an exploded perspective view of a patch 100 according to the invention. The patch 100 here comprises an electronic device 150 consisting of a radiating antenna 151 single-strand steel formed helical defining a half-wave electric dipole. The orientation of the radiating antenna 151 represents the longitudinal axis 101 of the patch 100, denoted u. This radiating antenna 151 is connected by inductive coupling to an additional antenna 160 electrically connected to the electronic chip 152 via a printed circuit 170. The electronic chip 152, the additional antenna 160 and the printed circuit 170 are included in FIG. a rigid and electrically insulating mass 180, for example epoxy resin. The radiating antenna 151 is interposed here between a first mass 121 and a second mass 122, both of electrically insulating elastomer mixture, for example based on EPDM. The direction parallel to the thickness of these masses constitutes the vertical axis noted w whose positive direction goes from the first mass 121 to the second mass 122. Finally the transverse axis, denoted v, is obtained in order to form a trihedron direct with the u and w axes. If this patch is intended to be implanted in a pneumatic tire 1 of the radial type, the axially outer face 131 of the patch 100 is defined as the lower surface of the first mass 121 along the direction w. Similarly, the axially inner face 132 of the patch 100 corresponds here to the upper surface of the second mass 122 along the direction w. And, the radially inner end 141, respectively radially outer 142, of the patch 100 is constituted here by the lower edge of the first mass 121 in the positive direction, respectively negative, of the transverse axis v. Finally, the minimum distance, denoted Em, is here defined by the difference in vertical position between the radiating antenna 150 and the axially outer face 131 of the patch 100. Similarly, the minimum distance, denoted Ei32, is defined here by the difference vertical position between the radiating antenna 150 and the axially inner face 132 of the patch 100. In the case of a radial-type tire, the longitudinal axis u, the transverse axis v and the vertical axis w of the patch 100 are respectively oriented along the circumferential axis 205, the radial axis 204 and the reference axis 201 of the tire 1.
    FIG. 5 is a graph representing the activation power of the passive transponder 150 as a function of the frequency of the radio waves emitted by an interrogative antenna. To do this, a radio frequency reader is used capable of emitting a prescribed and constant radio power over an extended frequency range around 900 Mhz. According to the communication protocol according to the invention, the antenna of this radiofrequency reader is in contact on the outer surface 14 of the tire 1 mounted on a wheel 8 of the vehicle and inflated to the operating pressure. For each power level and each emission frequency of the radio waves, the response of the passive transponder 150 is observed. This graph represents, in logarithmic scale, expressed in decibels, the minimum emission power of the radio waves to activate the passive transponder 150. for the same interrogation distance. In our case, the passive transponder 150 employed comprises a two-strand 151 steel helical radiating antenna 50 millimeters long embedded in an electrically insulating EPDM-based mixture having a thickness of 3.5 millimeters and partially covered by a rubber gum. link (123) of 0.5 millimeter. The patch 100, thus formed, placed perpendicularly to the metal wires (15) of the carcass ply 3 of a pneumatic tire (1) of the radial type, Michelin brand size 59/80 R63 mounted on a steel wheel in mounting seat 63 inch diameter flat is positioned on the inner surface 13 of this assembly mounted at a distance of 45 millimeters from the rubber tip 7 and below the radially outer end and axially inner 9 of the protector 6. to uncertainties of installation and position of the patch 100, it can be considered that the distance between the radio frequency transponder 150 and the interrogative antenna, placed on the outer surface 14 and halfway up the tire 1 is constant. The continuous curve 500 represents the transmission power necessary for the activation of a passive transponder 150 when the radiating antenna 151 is positioned at a distance of at least 1.5 millimeters from the axially outer face 131 of the patch 100. The dotted curve 600 is the radio transmission power required to activate a passive transponder 150 whose radiating antenna 151 is at a distance of less than 0.5 millimeters from the axially outer face 131 of the patch 100. Finally, the curve 700 indicates the maximum permissible power according to ETSI 302 208.
    Firstly, it is found that it takes at least four times more radiation power to activate the passive transponder 150 when its radiating antenna 151 is not sufficiently buried inside the patch 100. also reflected by a disturbance of the resonance of the radiating antenna 151 of the passive transponder 150 which is shifted by about 40 MHz between the two configurations of implantation of the radiating antenna 151 as illustrated by the frequency position of the minimum of the curves 500 and 600. These examples show that the interrogation of a passive transponder 150 located on the inner surface 13 of a tire 1 at the level of the protector 6 is possible while respecting the standards of the radio transmitting powers. However, the communication performance of such a passive transponder 150 will be strongly influenced by the characteristics of the patch 100 into which it is inserted.
    权利要求:
    Claims (14)
    [1" id="c-fr-0001]
    A pneumatic tire (1) equipped with a passive transponder (150), said tire (1) of toroidal shape, defining at any point the axial, radial and circumferential directions, having a radially inner surface (13) and a surface radially outer member (14), comprising an apex (S), two sidewalls (F) and two beads (B), each bead (B) having at least one annular rod (2) of revolution about a reference axis (201) ) defining the axial direction from the center of said tire (1), at least one carcass ply (3) of toroidal shape, at least one inner liner (4), at least one toroidal shaped protector (6) consisting of at least one elastomeric mixture layer placed radially internally to said bead wire (2), said carcass ply (3) and said inner liner (4), having a first end (9) located axially inside and radially externally and a second end (9) A gum tip (7) located axially inwardly and radially internally, said passive transponder (150) comprising at least one metallic strand forming a radiating antenna (151) and defining a longitudinal axis (101) electrically coupled to at least one microchip (152), said longitudinal axis (101) is positioned substantially perpendicular to the wires (15) of said carcass ply (3), said passive transponder (150) being embedded in an electrically insulating elastomeric mixture to constitute a patch (100), having on its periphery a first face (131) located axially externally, and a second face (132) located axially inwardly, substantially perpendicular to said reference axis (201), at least one end located radially inwardly (141), respectively an end located radially externally (142), corresponding to the minimum distance, respectively the distance e maximum, between said patch (100) and said reference axis (201), characterized in that at least one of the faces (131, 132) of the patch (100) extends axially between the axially inner end of the carcass ply (3) and the inner surface (13) of the tire (1) and that at least one end (141, 142) of the patch (100) extends radially at a distance between the rubber tip (7) and that of the radially outer end of the rod (12).
    [2" id="c-fr-0002]
    The pneumatic tire (1) according to claim 1, wherein the electrical coupling between said radiating antenna (151) and said electronic chip (152) is achieved by means of an additional antenna electrically connected to said electronic chip (152). ) and inductively coupled to said radiating antenna (151).
    [3" id="c-fr-0003]
    3. tire (1) according to one of the preceding claims, wherein said radiating antenna (151) is a half-wave dipole antenna.
    [4" id="c-fr-0004]
    4. Pneumatic tire (1) according to one of the preceding claims, wherein, said radiating antenna (151) of said passive transponder (150) is helically shaped.
    [5" id="c-fr-0005]
    5. Pneumatic tire (1) according to one of the preceding claims, wherein said patch (100) comprises an electrically insulating elastomer mixture thickness of between 1.5 and 5 millimeters, preferably between 2 and 4 millimeters.
    [6" id="c-fr-0006]
    6. tire (1) according to one of the preceding claims wherein the distance between said axially outer surface (131) of said patch (100) and said radiating antenna (151) of said passive transponder (150) is at least 1 millimeter.
    [7" id="c-fr-0007]
    7. tire (1) according to one of the preceding claims wherein the distance between said axially inner face (132) of said patch (100) and said radiating antenna (151) of said passive transponder (150) is at least 0 , 5 millimeters.
    [8" id="c-fr-0008]
    8. Pneumatic tire (1) according to any one of the preceding claims wherein, the electronic chip (152) being electrically connected to a printed circuit to form the electronic card, said printed circuit comprises one or more additional passive or active electronic components. .
    [9" id="c-fr-0009]
    The tire (1) according to the preceding claims, wherein the radially inner end (141) of said patch (100) is located radially at a distance (D), at least five millimeters, from said rubber tip (7). ) of said protector (6).
    [10" id="c-fr-0010]
    The tire (1) according to one of the preceding claims, wherein said patch (100) is attached at said axially outer surface (131) to the inner surface (13) of said tire (1).
    [11" id="c-fr-0011]
    The tire (1) according to claim 10, wherein said patch (100) is positioned on the inner surface (13) of said tire (1) between said rubber tip (7) and said radially outward end and axially internally (9) of said protector (6).
    [12" id="c-fr-0012]
    12. tire (1) according to any one of the preceding claims wherein, said patchlOO) consists of an elastomeric mixture based on natural rubber, butyl or ethylene-propylene-diene-monomer.
    [13" id="c-fr-0013]
    13. The tire (1) according to claim 12, wherein said patch (100) is at least partially covered by a bonding rubber (123) having a thickness of at least 0.5 millimeters.
    [14" id="c-fr-0014]
    14. A method of communicating a tire (1) according to any one of the preceding claims, wherein the tire (1) is mounted on a metal wheel (8) and inflated to the operating pressure: it uses a UHF radiofrequency reader comprising a radiating antenna; - On said tire (1) is marked the angular position of implantation of said radio frequency transponder (150); positioning said UHF radiofrequency reader perpendicular to said tire (1) by positioning said radiating antenna in contact with said outer surface (14) at the radial implantation plane of said passive transponder (150); said outer surface (14) is radially scanned from the mid-height of said tire (1) towards the reference axis (201); the information transmitted by said passive transponder (150) is recorded in response to the interrogation signal of said radio frequency reader.
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    WO2021058904A1|2021-04-01|Tyre comprising a radiofrequency transponder
    WO2021058905A1|2021-04-01|Tyre comprising a radiofrequency transponder
    WO2021058903A1|2021-04-01|Tyre comprising a radiofrequency transponder
    WO2019229389A1|2019-12-05|Tire casing fitted with a measurement system and method of communication for such an assembly
    同族专利:
    公开号 | 公开日
    AU2016323529B2|2020-09-10|
    AU2016323529A1|2018-04-26|
    CN108025609B|2020-05-12|
    FR3041285B1|2017-10-27|
    US10850577B2|2020-12-01|
    EP3349996B1|2021-03-10|
    US20180264898A1|2018-09-20|
    EP3349996A1|2018-07-25|
    WO2017046245A1|2017-03-23|
    CN108025609A|2018-05-11|
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    FR3059607A1|2016-12-05|2018-06-08|Compagnie Generale Des Etablissements Michelin|RADIO FREQUENCY COMMUNICATION MODULE FOR TIRES|
    FR3059606A1|2016-12-05|2018-06-08|Compagnie Generale Des Etablissements Michelin|RADIO FREQUENCY COMMUNICATION MODULE FOR TIRES|
    FR3069712A1|2017-07-31|2019-02-01|Compagnie Generale Des Etablissements Michelin|ANTENNA FOR ELECTRONIC MEMBER OF A PNEUMATIC|
    EP3768529A1|2018-03-20|2021-01-27|Compagnie Generale Des Etablissements Michelin|Heavy goods vehicle pneumatic tyre provided with a radiofrequency communication module|
    US20210019590A1|2018-03-30|2021-01-21|Compagnie Generale Des Etablissements Michelin|Radiofrequency transponder for tire|
    EP3774400A1|2018-03-30|2021-02-17|Compagnie Generale Des Etablissements Michelin|Radio-frequency transponder for tyre|
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    JP6686109B1|2018-11-26|2020-04-22|Ｔｏｙｏ Ｔｉｒｅ株式会社|tire|
    BR102019002815A2|2019-02-11|2020-09-29|Ceitec - Centro Nacional De Tecnologia Eletrônica Avançada S.A.|TIRE CONTAINING AN RFID TAG|
    法律状态:
    2016-09-21| PLFP| Fee payment|Year of fee payment: 2 |
    2017-03-24| PLSC| Search report ready|Effective date: 20170324 |
    2017-09-28| PLFP| Fee payment|Year of fee payment: 3 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1558819A|FR3041285B1|2015-09-18|2015-09-18|PNEUMATIC HAVING PASSIVE TRANSPONDER AND METHOD FOR COMMUNICATING SUCH PNEUMATIC|FR1558819A| FR3041285B1|2015-09-18|2015-09-18|PNEUMATIC HAVING PASSIVE TRANSPONDER AND METHOD FOR COMMUNICATING SUCH PNEUMATIC|
    EP16766942.3A| EP3349996B1|2015-09-18|2016-09-15|Tire embedding a passive transponderand method for reading the data|
    AU2016323529A| AU2016323529B2|2015-09-18|2016-09-15|Tyre comprising a passive transponder and method for reading the data|
    PCT/EP2016/071826| WO2017046245A1|2015-09-18|2016-09-15|Tyre comprising a passive transponder and method for reading the data|
    US15/760,357| US10850577B2|2015-09-18|2016-09-15|Tire comprising a passive transponder and method for reading the data|
    CN201680055051.1A| CN108025609B|2015-09-18|2016-09-15|Tyre comprising a passive transponder and method for reading data|
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