Method and system for detecting the vibration signature of a safety insert fitted in a tire
First Claim
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1. A method for analyzing vibration signals generated by the running of a tire on a safety insert, to detect a mode of resonance generated by this running, comprising:
- measuring a vibration signal generated by the running of the tire on the safety insert, within a given frequency band;
determining the energy of the detected vibration signal in first and second frequency bands, the first frequency band being narrow and the second frequency band being wide, the first and second frequency bands being centered on the same line of the mode of resonance; and
comparing the ratio of the energies in the first and second frequency bands with a warning threshold.
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Abstract
A method for detecting vibrations generated by the running of a tire on a safety insert, wherein a vibration signal is measured within a given frequency band and the measurement thus made is processed to detect a mode of resonance generated by this running. The energy of the signal measured by a sensor in two frequency bands, one being narrow and the other being wide, which are centered on the same line of the mode of resonance, is determined. The ratio of these two energies is compared with a given warning threshold.
11 Citations
25 Claims
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1. A method for analyzing vibration signals generated by the running of a tire on a safety insert, to detect a mode of resonance generated by this running, comprising:
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measuring a vibration signal generated by the running of the tire on the safety insert, within a given frequency band;
determining the energy of the detected vibration signal in first and second frequency bands, the first frequency band being narrow and the second frequency band being wide, the first and second frequency bands being centered on the same line of the mode of resonance; and
comparing the ratio of the energies in the first and second frequency bands with a warning threshold. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A system for analyzing vibration signals generated by the running of a tire on a safety insert, comprising:
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a sensor for measuring a vibration signal generated by the running of the tire on the safety insert in a given frequency band; and
means for processing the detected vibration signal and detecting a mode of resonance generated by the running of the tire, said processing means;
determining the energy of the detected vibration signal in first and second frequency bands, the first frequency band being narrow and the second frequency band being wide, the first and second frequency bands being centered on the same line of the mode of resonance; and
comparing the ratio of energies in the first and second frequency bands with a warning threshold. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A processor for analyzing vibration signals generated by the running of a tire on a safety insert to detect a mode of resonance generated by the running, the vibration signals being detected by a sensor, the processor:
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determining the energy of a detected vibration signal in first and second frequency bands, the first frequency band being narrow and the second frequency band being wide, the first and second frequency bands being centered on the same line of the mode of resonance; and
comparing the ratio of the energies in the first and second frequency bands with a warning threshold. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24, 25)
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Specification