Vehicle wheel assembly having improved monitoring capabilities for various vehicle conditions and monitoring device for accomplishing such monitoring
First Claim
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1. A monitoring device comprising:
- a housing adhered to a drop well of a wheel inside of a vehicle tire, the housing rotating with the wheel;
an electrical circuit disposed within the housing, the electrical circuit including a load sensing device disposed within the housing, the load sensing device sensing forces exerted on the wheel;
a transceiver coupled to the electrical circuit, the transceiver communicating load data sensed by the load sensing device to components exterior of the wheel;
wherein the electrical circuit includes a power conditioning circuit, the power conditioning circuit including rechargeable power cells to power electrical components of the electrical circuit;
wherein the power conditioning circuit includes a plurality of piezo elements to generate electrical charges, wherein the power conditioning circuit further includes an AC-to-DC converter, the electrical charges generated by the piezo elements are converted to a direct charge by the AC-to-DC converter, and wherein the converted direct charge is stored in the rechargeable power cells; and
further comprising a plurality of excitation masses exciting the plurality of piezo elements, wherein a respective piezo element is paired with an associated excitation mass, wherein each associated excitation mass acts on the respective piezo element when the wheel is rotating to generate electrical charges in the plurality of piezo elements.
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Abstract
A monitoring device includes a housing adhered to a drop well of a wheel inside of a vehicle tire. The housing rotates with the wheel. An electrical circuit disposed within the housing. The electrical circuit including a load sensing device disposed within the housing. The load sensing device sensing forces exerted on the wheel. A transceiver coupled to the electrical circuit. The transceiver communicates load data sensed by the load sensing device to components exterior of the wheel.
12 Citations
25 Claims
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1. A monitoring device comprising:
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a housing adhered to a drop well of a wheel inside of a vehicle tire, the housing rotating with the wheel; an electrical circuit disposed within the housing, the electrical circuit including a load sensing device disposed within the housing, the load sensing device sensing forces exerted on the wheel; a transceiver coupled to the electrical circuit, the transceiver communicating load data sensed by the load sensing device to components exterior of the wheel; wherein the electrical circuit includes a power conditioning circuit, the power conditioning circuit including rechargeable power cells to power electrical components of the electrical circuit; wherein the power conditioning circuit includes a plurality of piezo elements to generate electrical charges, wherein the power conditioning circuit further includes an AC-to-DC converter, the electrical charges generated by the piezo elements are converted to a direct charge by the AC-to-DC converter, and wherein the converted direct charge is stored in the rechargeable power cells; and further comprising a plurality of excitation masses exciting the plurality of piezo elements, wherein a respective piezo element is paired with an associated excitation mass, wherein each associated excitation mass acts on the respective piezo element when the wheel is rotating to generate electrical charges in the plurality of piezo elements. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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25. A monitoring device comprising:
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a housing adhered to a drop well of a wheel inside of a vehicle tire, the housing rotating with the wheel; an electrical circuit disposed within the housing, the electrical circuit including a load sensing device disposed within the housing, the load sensing device sensing forces exerted on the wheel; and a transceiver coupled to the electrical circuit, the transceiver communicating load data sensed by the load sensing device to components exterior of the wheel; wherein the electrical circuit further includes a primary induction unit, wherein the primary induction unit energizes a secondary induction unit exposed exterior to the housing, wherein secondary induction unit powers a clamp load sensing device monitoring a clamp load of the wheel secured to a wheel hub, wherein the signals relating to the clamp load data as sensed by the clamp load sensing device is transmitted to the electrical circuit via the electromagnetic induction between the secondary induction unit and the primary induction unit.
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Specification