Method and a device for locating the position of wheels of a vehicle
First Claim
1. A method of locating the position of wheels (2-5) of a vehicle (1), which wheels are equipped with an electronic box (6-9) adapted so as to transmit, to a central unit (15) mounted on the vehicle (1), signals representative of operating parameters of each wheel comprising, furthermore, a code for identifying the latter, said locating method being characterized in that:
- the vehicle (1) is equipped with transmit antennas (11-14;
16-19) each disposed in such a way as to be positioned in proximity to a wheel (2-5) or to a pair of wheels ((2,4), (3,5)(2,3), (4,5)), and the central unit (15) and the electronic boxes (6-9) are programmed in such a way as to implement a locating procedure according to which, successively for each of the transmit antennas (11-14;
16-19);
the central unit (15) instructs the transmission, by said transmit antenna, of an identification request signal on receipt of which the electronic box (6-9) of each wheel (2-5) positioned in proximity to this transmit antenna is adapted so as to transmit in response a signal comprising this wheel'"'"'s identifying code, the central unit (15) instructs, simultaneously with the transmission of the identification request signal, the transmission, by each of the antennas positioned in proximity to the other wheels, of a garbled signal designed to scramble the identification request signal.
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Accused Products
Abstract
The invention relates to a method and a device for locating the position of wheels (2-5) of a vehicle (1). According to the invention, the vehicle (1) is equipped with transmit antennas (11-14) each disposed in such a way as to be positioned in proximity to a wheel (2-5) or to a pair of wheels (2-4,3-5,2-3,4-5), and a locating procedure is implemented according to which, successively for each of the transmit antennas (11-14), the transmission, by said transmit antenna, of an identification request signal is instructed, and simultaneously with the transmission of said identification request signal, the transmission, by each of the antennas positioned in proximity to the other wheels, of a garbled signal designed to scramble the identification request signal is instructed.
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Citations
18 Claims
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1. A method of locating the position of wheels (2-5) of a vehicle (1), which wheels are equipped with an electronic box (6-9) adapted so as to transmit, to a central unit (15) mounted on the vehicle (1), signals representative of operating parameters of each wheel comprising, furthermore, a code for identifying the latter, said locating method being characterized in that:
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the vehicle (1) is equipped with transmit antennas (11-14;
16-19) each disposed in such a way as to be positioned in proximity to a wheel (2-5) or to a pair of wheels ((2,4), (3,5)(2,3), (4,5)),and the central unit (15) and the electronic boxes (6-9) are programmed in such a way as to implement a locating procedure according to which, successively for each of the transmit antennas (11-14;
16-19);
the central unit (15) instructs the transmission, by said transmit antenna, of an identification request signal on receipt of which the electronic box (6-9) of each wheel (2-5) positioned in proximity to this transmit antenna is adapted so as to transmit in response a signal comprising this wheel'"'"'s identifying code, the central unit (15) instructs, simultaneously with the transmission of the identification request signal, the transmission, by each of the antennas positioned in proximity to the other wheels, of a garbled signal designed to scramble the identification request signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 11, 12, 13, 14, 15, 16, 17, 18)
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8. A device for locating the position of wheels (2-5) of a vehicle (1), which wheels are equipped with an electronic box (6-9) adapted so as to transmit, to a central unit (15) mounted on the vehicle (1), signals representative of operating parameters of each wheel comprising, furthermore, a code for identifying the latter, said locating device being characterized in that it comprises,
transmit antennas (11-14; -
16-19) each disposed in such a way as to be positioned in proximity to a wheel (2-5) or to a pair of wheels ((2,4), (3,5), (2,3), (4,5)),
and a central unit (15) programmed in such a way as to implement a locating procedure according to which, successively for each of the transmit antennas (11-14;
16-19);
said central unit instructs the transmission, by said transmit antenna, of an identification request signal on receipt of which the electronic box (6-9) of each wheel (2-5) positioned in proximity to this transmit antenna is programmed so as to transmit in response a signal comprising this wheel'"'"'s identifying code, said central unit instructs, simultaneously with the transmission of the identification request signal, the transmission, by each of the antennas positioned in proximity to the other wheels, of a garbled signal designed to scramble the identification request signal. - View Dependent Claims (9, 10)
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16-19) each disposed in such a way as to be positioned in proximity to a wheel (2-5) or to a pair of wheels ((2,4), (3,5), (2,3), (4,5)),
Specification