Tire module with piezoelectric converter
First Claim
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1. A tire module for sensing deflection of a tire comprising:
- a piezoelectric converter configured for installation on an inside surface of a tire;
the piezoelectric converter including at least one elastically deformable region formed from piezoelectric material;
a deflection limiting means configured to delimit deflection of the elastically deformable region;
attachment means for attaching the elastically deformable region to the inside of the tire; and
an elastic damping means connected between the attachment means and the elastically deformable region.
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Abstract
A tire module for sensing deflection of a tire and a method of sensing deflection of the tire. The tire module includes a piezoelectric converter that is configured for installation on an inside surface of the tire. The piezoelectric converter includes at least one elastically deformable region that is formed from piezoelectric material. A deflection limiting means is configured to delimit deflection of the elastically deformable region.
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Citations
25 Claims
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1. A tire module for sensing deflection of a tire comprising:
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a piezoelectric converter configured for installation on an inside surface of a tire; the piezoelectric converter including at least one elastically deformable region formed from piezoelectric material; a deflection limiting means configured to delimit deflection of the elastically deformable region; attachment means for attaching the elastically deformable region to the inside of the tire; and an elastic damping means connected between the attachment means and the elastically deformable region. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 24)
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21. A tire monitoring system comprising:
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a plurality of tire modules each being configured for sensing deflection of a respective tire; each tire module including a piezoelectric converter configured for installation on an inside surface of a tire, the piezoelectric converter including at least one elastically deformable region formed from piezoelectric material, a deflection limiting means configured for delimiting deflection of the elastically deformable region, attachment means for attaching the elastically deformable region to the inside of the tire, and an elastic damping means connected between the attachment means and the elastically deformable region or the rigid region; and a central unit configured for receiving signals from each tire module. - View Dependent Claims (22, 23)
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25. A method of sensing deflection of a tire comprising the steps of:
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deforming at least one elastically deformable region of a tire module that is coupled to or composed of a piezoelectric material, wherein the tire module is positioned on a surface of the tire and the at least one elastically deformable region is supported by spaced apart attachment means with the deforming occurring based on relative displacement between the attachment means; delimiting deformation of the at least one of the elastically deformable region; and generating an electrical potential within the piezoelectric material in response to the deforming step.
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Specification