System for measuring the internal temperature of a running tire

A system for measuring a temperature inside a rubber compound of a tire when the tire is running, the system comprising:

• at least one sensor fitted with a microprocessor, radio transmission means, a temperature measuring probe and power supply means,
• the sensor being inserted in an area of the tire originating from a manufacturing process,
• the area being identified depending on predefined selection criteria,
• the sensor being embedded in a hermetically sealed volume formed inside the rubber compound of the area of the tire originating from the manufacturing process;
• and
• means for keeping the sensor in a fixed position while the tire is running,
• wherein the sensor is molded from a flexible material of which a dynamic shear stiffness modulus is less than or equal to one quarter of the dynamic shear stiffness modulus of the rubber compound of which the temperature is measured, the dynamic shear stiffness moduli being measured for a frequency equal to 10 Hz, a strain equal to 50% of the peak-to-peak strain amplitude, and a temperature equal to 60° C.