Tire monitor system having tire valve antenna
First Claim
Patent Images
1. A tire monitor sensor unit, comprising:
- a tire pressure detector that detects tire pressure and generates tire data including pressure in the tire;
a tire valve operable to receive the tire data from the tire pressure detector and transmit the tire data as an antenna; and
a coupler removably coupling the tire pressure detector and the tire valve, the coupler comprising two metal layers disposed adjacent to one another.
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Abstract
A tire monitor system includes a tire monitor sensor unit that has a tire pressure detector, a coupler and a tire valve. The tire valve operates as an antenna to transmit tire data from the tire pressure detector. The coupler provides a capacitive coupling that removably couples the tire pressure detector and the tire valve. The coupler includes two metal layers separated by a dielectric layer. The two metal layers may be formed by the tire valve and a connection tube.
21 Citations
20 Claims
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1. A tire monitor sensor unit, comprising:
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a tire pressure detector that detects tire pressure and generates tire data including pressure in the tire;
a tire valve operable to receive the tire data from the tire pressure detector and transmit the tire data as an antenna; and
a coupler removably coupling the tire pressure detector and the tire valve, the coupler comprising two metal layers disposed adjacent to one another. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 15, 16, 17, 18, 19, 20)
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14. A method comprising:
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providing a conductive connection tube;
inserting the connection tube into an opening defined by a housing of a tire pressure detector;
electrically connecting the conductive tube to circuitry of the tire pressure detector;
inserting a stem of a tire valve into the opening so that the connection tube surrounds the tire valve stem, thereby coupling the tire pressure detector circuitry and the stem of the tire valve; and
transmitting the tire data using the tire valve stem as an antenna.
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Specification