Tire condition monitoring apparatus and method
First Claim
1. A tire condition monitoring apparatus for monitoring the condition of tires of a vehicle, the apparatus comprising:
- a plurality of transmitters, each of which is arranged in one of the tires, wherein each transmitter transmits a radio signal that includes data representing the condition of the corresponding tire;
a reception antenna, which induces a voltage signal based on the receipt of the radio signal; and
a receiver for receiving and processing the voltage signal from the reception antenna, wherein, when one of the transmitters transmits a radio signal, the receiver determines the position of the tire in which the transmitter that has transmitted the radio signal is located based on the pattern of the voltage signal induced by the reception antenna.
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Accused Products
Abstract
A tire condition monitoring apparatus includes a plurality of transmitters, each of which is located in one of tires, a reception antenna, and a receiver. Each transmitter transmits a radio signal that includes data representing the condition of the corresponding tire. The reception antenna induces a voltage signal based on the reception of the radio signal. When one of the transmitters transmits a radio signal, the receiver determines the position of the tire in which the transmitter that has transmitted the radio signal is located based on the pattern of the voltage signal induced by the reception antenna. Therefore, even when the positions of the tires are changed, the receiver can easily identify the tire that corresponds to the received data.
20 Citations
20 Claims
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1. A tire condition monitoring apparatus for monitoring the condition of tires of a vehicle, the apparatus comprising:
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a plurality of transmitters, each of which is arranged in one of the tires, wherein each transmitter transmits a radio signal that includes data representing the condition of the corresponding tire;
a reception antenna, which induces a voltage signal based on the receipt of the radio signal; and
a receiver for receiving and processing the voltage signal from the reception antenna, wherein, when one of the transmitters transmits a radio signal, the receiver determines the position of the tire in which the transmitter that has transmitted the radio signal is located based on the pattern of the voltage signal induced by the reception antenna. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A tire condition monitoring apparatus for monitoring the condition of tires of a vehicle, the apparatus comprising:
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a plurality of transmitters, each of which is arranged in one of the tires, wherein each transmitter transmits a radio signal that includes data representing the condition of the corresponding tire;
a reception antenna, which induces a voltage signal based on the receipt of the radio signal, wherein, when one of the transmitters transmits a radio signal, the level of the voltage signal induced by the reception antenna varies in accordance with the rotation of the associated tire; and
a receiver for receiving and processing the voltage signal from the reception antenna, wherein the receiver stores data representing the position of each tire with respect to the vehicle and reference pattern data that corresponds to the transmitter located in each tire in advance linking the position data with the reference pattern data, wherein the reference pattern data represents the variation pattern of the level of the voltage signal that varies in accordance with the rotation of the tire, the voltage signal being induced by the reception antenna when the reception antenna receives the radio signal from the associated transmitter, and wherein, when one of the transmitters transmits a radio signal, the receiver determines the position of the tire in which the transmitter that has transmitted the radio signal is located by comparing the variation pattern of the level of the voltage signal induced by the reception antenna with the reference pattern data. - View Dependent Claims (10, 11, 12, 13)
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14. A tire condition monitoring method for monitoring the condition of tires of a vehicle, the method comprising:
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transmitting a radio signal from one of a plurality of transmitters, each of which is located in one of the tires, wherein the radio signal includes data representing the condition of the corresponding tire;
inducing a voltage signal based on the receipt of the radio signal by a reception antenna; and
determining the position of the tire in which the transmitter that has transmitted the radio signal is located based on the pattern of the voltage signal induced by the reception antenna. - View Dependent Claims (15, 16, 17, 18, 19, 20)
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Specification