System and method for determining tread wear of a tire
First Claim
1. A system for determining tread wear of a tire comprising:
- a first wireless communication chip located at an inner surface of said tire, said first wireless communication chip being configured to transmit a first signal;
a second wireless communication chip located at an outer surface of said tire, said second wireless communication chip being configured to transmit a second signal in response to receipt of said first signal; and
a processor element associated with said first wireless communication chip, wherein said processor element is configured to compute a time delay between transmission of said first signal from said first wireless communication chip and receipt of said second signal at said first wireless communication chip, said time delay being indicative of said tread wear.
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Accused Products
Abstract
A system for determining tread wear of a tire includes a first wireless communication chip located at an inner surface of the tire and a second wireless communication chip located at an outer surface of the tire. The second chip resides in a slot extending through a housing located in a groove in a tread of the tire. The second chip moves in the slot toward the bottom of the groove in response to the tread wear. Methodology entails transmitting a first signal from a first chip, receiving the first signal at the second chip, transmitting a second signal from the second chip in response to receipt of the first signal, receiving the second signal at the first chip, computing a time delay between transmission of the first signal and receipt of the second signal, and determining tread wear of the tire in response to the time delay.
13 Citations
20 Claims
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1. A system for determining tread wear of a tire comprising:
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a first wireless communication chip located at an inner surface of said tire, said first wireless communication chip being configured to transmit a first signal; a second wireless communication chip located at an outer surface of said tire, said second wireless communication chip being configured to transmit a second signal in response to receipt of said first signal; and a processor element associated with said first wireless communication chip, wherein said processor element is configured to compute a time delay between transmission of said first signal from said first wireless communication chip and receipt of said second signal at said first wireless communication chip, said time delay being indicative of said tread wear. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A system for determining tread wear of tire comprising:
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a first wireless communication chip embedded in a first housing, said first housing being coupled to an inner surface of said tire, said first wireless communication chip being configured to transmit a first signal; a second housing located at an outer surface of said tire and configured to reside in a groove in a tread of said tire, said second housing having a slot longitudinally extending through said second housing toward a bottom of said groove; a second wireless communication chip residing in said slot, said second wireless communication chip being configured to transmit a second signal in response to receipt of said first signal; and a processor element associated with said first wireless communication chip, wherein said processor element is configured to compute a time delay between transmission of said first signal from said first wireless communication chip and receipt of said second signal at said first wireless communication chip, said time delay being indicative of said tread wear. - View Dependent Claims (15, 16, 17, 18)
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19. A method comprising:
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transmitting a first signal from a first wireless communication chip located at an inner surface of a tire; receiving said first signal at a second wireless communication chip located at an outer surface of said tire; transmitting a second signal from said second wireless communication chip in response to receipt of said first signal; receiving said second signal at said first wireless communication chip; computing a time delay between transmission of said first signal and receipt of said second signal; and determining tread wear of said tire in response to said time delay. - View Dependent Claims (20)
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Specification