TIRE MONITOR AND METHOD
First Claim
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1. A tire monitor, comprising:
- a first device that includes;
at least one piezoelectric matrix element, and a first sensing layer, comprising;
at least one rectifier, and a processor element, wherein the first device is capable of sensing a deflection in a layer of material, wherein the first device is capable of processing the sensed deflection, and wherein the first device is capable of wirelessly transmitting an indication on a condition of the material;
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Abstract
A tire monitor includes a first device (300) having at least one piezoelectric matrix element (404), and a first sensing layer (410) that includes at least one rectifier (106) and a processor element (110). The first device (300) is capable of sensing a deflection (u) in a layer of material, and is capable of processing the sensed deflection. The first device (300) is capable of wirelessly transmitting an indication (116) on a condition of the material.
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Citations
20 Claims
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1. A tire monitor, comprising:
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a first device that includes;
at least one piezoelectric matrix element, and a first sensing layer, comprising;
at least one rectifier, and a processor element, wherein the first device is capable of sensing a deflection in a layer of material, wherein the first device is capable of processing the sensed deflection, and wherein the first device is capable of wirelessly transmitting an indication on a condition of the material;
- View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method of monitoring a tire, comprising the steps of:
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generating a spike of voltage once during a rotation of a tire with a sensor;
detecting the spike of voltage and determining a magnitude thereof;
comparing the magnitude to at least one of a warning threshold and a failure threshold;
sending a warning indication when the magnitude exceeds the warning threshold. - View Dependent Claims (10, 11, 12, 13, 14, 15)
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16. A method of sensing an inflation condition of a tire, comprising the steps of:
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operably attaching at least one device on an inner periphery of a tire, wherein the at least one device is capable of generating a voltage based on a flexural strain present in a section of material of the inner periphery of the tire;
wirelessly transmitting an indication of the inflation condition of the tire, by;
generating a spike voltage value based on the flexural strain, comparing a magnitude of the spike voltage to a nominal value, initiating a timer when the magnitude of the spike voltage exceeds the nominal value, and activating a wireless transmitter. charging a power storage device that is disposed on the at least one device. - View Dependent Claims (17, 18, 19, 20)
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Specification