SYSTEM OF DETECTING TIRE INFORMATION
First Claim
1. A system of detecting tire information, the system comprising:
- a measured value transmitter that includes a first resonator with a pressure sensor and a second resonator without the pressure sensor, which are mounted in a tire of a vehicle; and
a controller that is provided in the body of the vehicle that transmits a signal used for resonance of the first and second resonators to the measured value transmitter, and receives from the measured value transmitter a signal associated with the resonant frequency of the first resonator and a signal associated with the resonant frequency of the second resonator, so as to calculate a measured value on the basis of the resonant frequencies of the first and second resonators,wherein characteristics of a piezoelectric single-crystal oscillator included in the first resonator are made closely analogous to those of a piezoelectric single-crystal oscillator included in the second resonator.
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Accused Products
Abstract
A system of detecting tire information includes a measured value transmitter that includes a first resonator with a pressure sensor and a second resonator without the pressure sensor, which are mounted in a tire of a vehicle. Also includes is a controller that is provided in the body of the vehicle, which transmits a signal used for resonance of the first and second resonators to the measured value transmitter, and receives signals associated with the resonant frequencies of the first and second resonators from the measured value transmitter, so as to calculate a measured value on the basis of the resonant frequencies of the first and second resonators. Characteristics of a piezoelectric single-crystal oscillator included in the first resonator are made closely analogous to those of a piezoelectric single-crystal oscillator included in the second resonator.
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Citations
5 Claims
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1. A system of detecting tire information, the system comprising:
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a measured value transmitter that includes a first resonator with a pressure sensor and a second resonator without the pressure sensor, which are mounted in a tire of a vehicle; and a controller that is provided in the body of the vehicle that transmits a signal used for resonance of the first and second resonators to the measured value transmitter, and receives from the measured value transmitter a signal associated with the resonant frequency of the first resonator and a signal associated with the resonant frequency of the second resonator, so as to calculate a measured value on the basis of the resonant frequencies of the first and second resonators, wherein characteristics of a piezoelectric single-crystal oscillator included in the first resonator are made closely analogous to those of a piezoelectric single-crystal oscillator included in the second resonator. - View Dependent Claims (2, 3, 4, 5)
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Specification