Method and a device for evaluating endurance of a tyre

A device for evaluating endurance of a tyre, the device comprising:

• a movable surface,
• a tyre holder configured such that a tyre held by the tyre holder contacts the movable surface,
• a rotor configured to rotate the tyre holder and/or to move the movable surface such that, in use, the tyre makes a rolling contact with the movable surface,
• a processor,
• a microphone arrangement comprising at least a first microphone configured to detect sound, and
• means for sending a signal from the microphone arrangement to the processor, wherein:
• a sampling frequency of the signal is at least 44 kHz,
• the processor is configured to determine from the signal that an endurance of the tyre has been exceeded, and the device is configured
• to indicate based on the determining, that the endurance of the tyre has been exceeded and/or to stop the rotation of the tyre.

A method for teaching a data-driven model for determining from a signal an endurance of a tyre, the method comprising:

• a. arranging a tyre to a tyre holder,
• b. rotating the tyre and/or moving a movable surface such that the tyre makes a rolling contact with the movable surface thereby generating sound,
• c. transducing the sound generated by the tyre to a signal using a microphone arrangement comprising at least a first microphone,
• d. recording the signal using a sampling frequency of at least 44 kHz,
• e. observing a failure of the tyre, and
• f. teaching the data-driven model with the recorded signal and the tyre failure, and
• g. repeating the steps:
• a to f.

A computer program that, when run on a processor, is configured to:

• receive a signal generated by a microphone arrangement transducing sound generated by a tyre making a rolling contact with a movable surface the signal having a sampling frequency of at least 44 kHz,
• determine from the signal that an endurance of the tyre has been exceeded, and
• send based on the determining, a second signal indicative of an endurance of a tyre having been exceeded, or;
• send the signal to a computing entity that is configured to determine from the signal that an endurance of the tyre has been exceeded, wherein:
• the computing entity is configured to send a result of the determining back to the computer program, and the computer program is configured to:
• the result of the determining from the computing entity, and
• send based on the result of the determining a second signal indicative of an endurance of a tyre having been exceeded.