Abstract:
Disclosed herein is a rubber coating for an electronic communication module, the coating comprising 100 phr of at least one diene-based elastomer, and at least one nano-sized inorganic material having a dielectric constant of at least 9 and a loss tangent of less than 0.1, wherein the coating when cured has a dielectric constant of at least 4.5 and a loss tangent of less than 0.01. Also disclosed are an electronic communication module comprising a radio device having at least a portion of its outer surface surrounded by the rubber coating (i.e., a rubber composition of specified composition), tires or tire retreads incorporating the electronic communication module, and methods for increasing the dielectric constant of a rubber coating without increasing its loss tangent.
Abstract:
A tire includes a pair of bead portions having a bead and a bead filler. A pair of reinforcement fillers has an inner surface with an upper portion contacting an outer surface of a respective bead filler, a middle portion contacting an outer surface of a respective turn up portion of a body ply, and a lower portion contacting an outer surface of a wire reinforcement. An electronic device is disposed radially below an apex of the bead filler of one of the bead portions and axially outside the bead filler. The electronic device is axially spaced from the bead filler such that the electronic device does not contact the bead filler.
Abstract:
This method makes it possible to manage data relating to an assembly (10) comprising a tyre (12), carrying an RFID marker (16), and a rim (14), carrying a wheel module (22) comprising at least one sensor (P, T). The assembly (10) may be in various states, in particular a mounted state in which the tyre (12) is mounted on the rim (14) to form a mounted assembly (10), also called a wheel, intended to equip a motor vehicle. According to this method, data is transmitted between the RFID marker (16) and the wheel module (22) via an intermediate unit (28), separated from the mounted assembly (10) and from the motor vehicle, comprising means for transmitting data (42, 50, 52, 54). These data, termed RFID data, are stored in the wheel module (22). The wheel module (22) comprising at least one tyre pressure sensor (P), the RFID data stored in the wheel module (22) are erased when the pressure detected by the pressure sensor (P) is less than or equal to a pretermined pressure threshold.
Abstract:
An RFID device for tires utilizes a wireless antenna. The antenna is formed of conductive rubber having a slot formed therein. The conductive rubber antenna is encapsulated between a pair of non-conductive sheets. A third non-conductive member encircles the conductive rubber antenna and is itself sealed between the first and second sheets of non-conductive material. A microchip is positioned in the slot and conductively attached to the antenna on opposite sides of the slot.
Abstract:
Method and apparatus for mounting a transponder module (602, 602a, 702, 951, 1000, 1020, 1102, 1102', 1402) and an antenna (740, 740', 862, 940, 1140, 1140', 1200, 1300, 1320, 1360, 1360', 1440, 1460) in a pneumatic tire (312, 630, 1204, 1350, 1350'), and for coupling or connecting the antenna to the transponder module. A patch (600, 700, 700', 850, 950, 980, 1100, 1100', 1210, 1356, 1356', 1400) has an opening (620, 720, 720', 856, 956, 986, 1120, 1120', 1420) extending to a cavity (622, 722, 860, 960, 990, 1122, 1122', 1422) within the body of the patch. The transponder module is removably retained in the cavity by a resilient annular lip (624, 724, 724', 858, 958, 988, 1124, 1124', 1424) extending around the opening. End portions (742/744, 742'/744', 864/868, 942/944, 972/974, 1142/1144, 1142'/1144', 1322e/1324e, 1362/1364, 1362'/1364') of the antenna extend into the patch, and may be connected to a coupling coil (750, 750', 866, 938, 968) disposed within the patch for coupling RF signals from the antenna to a corresponding coupling coil (760, 760', 953, 1004, 1024) in the transponder module.
Abstract:
Method and apparatus for mounting a transponder module (602, 602a, 702, 951, 1000, 1020, 1102, 1102', 1402) and an antenna (740, 740', 862, 940, 1140, 1140', 1200, 1300, 1320, 1360, 1360', 1440, 1460) in a pneumatic tire (312, 630, 1204, 1350, 1350'), and for coupling or connecting the antenna to the transponder module. A patch (600, 700, 700', 850, 950, 980, 1100, 1100', 1210, 1356, 1356', 1400) has an opening (620, 720, 720', 856, 956, 986, 1120, 1120', 1420) extending to a cavity (622, 722, 860, 960, 990, 1122, 1122', 1422) within the body of the patch. The transponder module is removably retained in the cavity by a resilient annular lip (624, 724, 724', 858, 958, 988, 1124, 1124', 1424) extending around the opening. End portions (742/744, 742'/744', 864/868, 942/944, 972/974, 1142/1144, 1142'/1144', 1322e/1324e, 1362/1364, 1362'/1364') of the antenna extend into the patch, and may be connected to a coupling coil (750, 750', 866, 938, 968) disposed within the patch for coupling RF signals from the antenna to a corresponding coupling coil (760, 760', 953, 1004, 1024) in the transponder module. Alternatively, the patch may have contact pads or plugs (1152/1154, 1152'/1154', 1452/1454) disposed therein for making electrical connections with corresponding contact pads (1132/1134, 1132'/1134', 1432/1434) disposed on an external surface (1106, 1406) of the transponder module.
Abstract:
An annular apparatus (301) is embedded within the toroidal region of a pneumatic tire (101), or in a ring of elastomeric material (201) attached to a tire rim. The apparatus is coaxially positioned with respect to the tire or wheel and preferably is embedded in the tire at its equatorial plane (EP), and includes a radio-frequency transponder, including an integrated circuit chip (121); and optional sensors in the chip or associated with the chip; the integrated circuit chip of the transponder has at least the capacity to transmit data relating to tire or wheel identification. The antenna comprises a composite of an electrical conductor (141) and a rubber matrix (201) wherein the composite is capable of substantial elongation.