Tire, tire wear detection system including the same, method to detect tire wear

A tire wear detection system for a vehicle, comprising:

• a tire including:
• a tread extending in a circumferential direction about a rotational axis of the tire;
• and
• wear indicators disposed in the tread and spaced apart from each other to be arranged in the circumferential direction, the number of the wear indicators being in a range of 16 to 96;
• at least one sensor to generate a harmonic noise signal in association with the tire when the tire rolls on a road surface to move the vehicle, the harmonic noise signal having neighboring first and second frequency peaks in a frequency spectrum of the harmonic noise signal;
• at least one processor to generate an alert signal based on detection of an additional frequency peak caused by the wear indicators and positioned between the first and second frequency peaks in the frequency spectrum.

A method of generating an alert signal to indicate a tire worn to reach a wear threshold, the method comprising steps of:

• generating harmonic noise signal in association with the tire when the tire rolls on a road surface to move a vehicle, the harmonic noise signal having neighboring first and second frequency peaks in a frequency spectrum of the harmonic noise signal,
• wherein the tire includes:
• a tread extending in a circumferential direction about a rotational axis of the tire;
• and
• wear indicators disposed in the tread and spaced apart from each other to be arranged in the circumferential direction, the number of the wear indicators being in a range of 16 to 96;
• and
• generating an alert signal based on detection of an additional frequency peak caused by the wear indicators and positioned between the first and second frequency peaks in the frequency spectrum.