Method for monitoring the condition of a tyre
First Claim
Patent Images
1. A method for monitoring a tyre of a motor vehicle the method comprising steps of:
- detecting, by an acoustic sensor mounted on the motor vehicle, an acoustic signal that includes an acoustic footprint noise produced by a set of at least one sound wear indicator of a tyre tread of a tyre, the acoustic footprint noise being produced during running of the tyre on a ground surface beyond a predetermined radial wear threshold of the tyre tread;
transmitting, to a remote server not mounted on the motor vehicle, information relating to the acoustic signal; and
pre-processing the acoustic signal to extract therefrom the acoustic footprint noise,wherein the acoustic footprint noise includes a plurality of individual acoustic footprint frequency components,wherein the acoustic signal includes a plurality of individual frequency components, andwherein during the pre-processing step;
more than one series of individual frequency components are enumerated, each enumerated series being able to form at least one part of the individual acoustic footprint frequency components,an acoustic footprint series is selected from the enumerated series, anda reliability index is determined from the acoustic footprint series.
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Abstract
The tyre includes a tyre tread configured so that, beyond a predetermined radial wear threshold, the tyre tread has a set of at least one wear indicator, including a so-called “sound” cavity arranged in a circumferential groove of the tyre tread. During the monitoring method, an acoustic signal that is able to include an acoustic footprint noise produced by the set during the running of the tyre on a ground beyond the predetermined threshold is detected by an acoustic sensor mounted on the vehicle, and information relating to the acoustic signal is emitted to a remote server not mounted on the motor vehicle.
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Citations
17 Claims
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1. A method for monitoring a tyre of a motor vehicle the method comprising steps of:
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detecting, by an acoustic sensor mounted on the motor vehicle, an acoustic signal that includes an acoustic footprint noise produced by a set of at least one sound wear indicator of a tyre tread of a tyre, the acoustic footprint noise being produced during running of the tyre on a ground surface beyond a predetermined radial wear threshold of the tyre tread; transmitting, to a remote server not mounted on the motor vehicle, information relating to the acoustic signal; and pre-processing the acoustic signal to extract therefrom the acoustic footprint noise, wherein the acoustic footprint noise includes a plurality of individual acoustic footprint frequency components, wherein the acoustic signal includes a plurality of individual frequency components, and wherein during the pre-processing step; more than one series of individual frequency components are enumerated, each enumerated series being able to form at least one part of the individual acoustic footprint frequency components, an acoustic footprint series is selected from the enumerated series, and a reliability index is determined from the acoustic footprint series. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method for monitoring a tyre of a motor vehicle, the method comprising steps of:
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detecting, by an acoustic sensor mounted on the motor vehicle, an acoustic signal that includes an acoustic footprint noise produced by a set of at least one sound wear indicator of a tyre tread of a tyre, the acoustic footprint noise being produced during running of the tyre on a ground surface beyond a predetermined radial wear threshold of the tyre tread; transmitting, to a remote server not mounted on the motor vehicle, information relating to the acoustic signal; pre-processing the acoustic signal to extract the acoustic footprint noise; and post-processing during which the remote server establishes a dianosis of a condition of the tyre and a past trend of the tyre over time according to a result of the processing step. - View Dependent Claims (10, 11, 12, 13)
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14. A method for monitoring a trye of a motor vehicle, the method comprising steps of:
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detecting, by an acoustic sensor mounted on the motor vehicle, an acoustic signal that include an acoustic footprint noise produced by a set of at least one sound wear indicator of a tyre tread of a tyre, the acoustic footprint noise being produced during running of the tyre on a ground surface beyond a predetermined radial wear threshold of the tyre tread; transmitting, to a remote server not mounted on the motor vehicle, information relating to the acoustic signal; pre-processing the acoustic signal to extract therefrom the acoustic footprint noise; and post-processing during which the remote server establishes a diagnosis of a condition of the tyre and a past trend of the tyre over time according to a result of the pre-processing step, wherein the method is performed to monitor tyres of plurality of motor vehicles, and wherein a diagnosis is established for all the tyres of the plurality of vehicles.
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15. A computer program product embodying computer code that, when executed by a computer, implements a method for monitoring a tyre of a motor vehicle, the tyre including a tyre tread that is configured so that, beyond a predetermined radial wear threshold, the tyre tread has a set of at least one sound wear indicator, wherein the method includes steps of:
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detecting, by an acoustic sensor mounted on the motor vehicle, an acoustic signal that includes an acoustic footprint noise produced by the set during running of the tyre on a ground surface beyond the predetermined radial wear threshold, emitting, to a remote server not mounted on the motor vehicle, information relating to the acoustic signal, and pre-processing the acoustic signal to extract the acoustic footprint noise, wherein the acoustic footprint noise includes a plurality acoustic footprint frequency components, wherein the acoustic signal includes a plurality of individual frequency components, and wherein, during the pre-processing step; more than one series of individual frequency components are enumerated, each enumerated series being able to form at least one part of the individual acoustic footprint frequency components, an acoustic footprint is selected from the enumerated series, and a reliability index is determined from the acoustic footprint series.
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16. A non-transitory computer-readable storage medium storing computer-executable code instructions that, when executed by a computer, implements a method for monitoring a tyre of a motor vehicle, the tyre including a tyre tread that is configured so that, beyond a predetermined radial wear threshold, the tyre tread has a set of at least one sound wear indicator, wherein the method includes steps of:
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detecting, by an acoustic sensor mounted on the motor vehicle, an acoustic signal that includes an acoustic footprint noise produced by the set during running of the tyre on a ground surface beyond the predetermined radial wear threshold, emitting, to a remote server not mounted on the motor vehicle, information relating to the acoustic signal, and pre-processing the acoustic signal to extract therefrom the acoustic footprint noise, wherein the acoustic footprint noise includes a plurality of individual acoustic footprint frequency components, wherein the acoustic signal includes a plurality of individual frequency components, and wherein, during the pre-processing step; more than one series of individual frequency components are enumerated, each enumerated series being able to form at least one part of the individual acoustic footprint frequency components, an acoustic footprint series is selected from the enumerated series, and a reliability index is determined from the acoustic footprint series. - View Dependent Claims (17)
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Specification