Evaluation method for pneumatic tires and system thereof

An evaluation system for pneumatic tires, evaluating an adverse effect of a temperature of a pneumatic tire based on information of temperatures of the pneumatic tire detected by a temperature sensor, characterized by comprising:

• temperature detection means which include the temperature sensor, detect temperatures Ti of the pneumatic tire and output information of the temperatures;
• contribution coefficient storage means previously storing, for each temperature Ti, contribution coefficients ki which are constituted of a power function and are associated with a state change in a tire member with temperatures as parameters;
• detection counts calculating means for calculating a count ni of temperatures detected for each detected temperature Ti and a total detection counts N of detected temperatures based on the detected temperature information;
• temperature severity number calculating means of substituting the total detection counts N, the count ni of temperatures detected, the contribution coefficient ki and the rate β into a computing equation TSN=Σ(Ti×ni×ki/N)×β to calculate a temperature severity number TSN of the pneumatic tire;
• and determination means of determining an adverse effect of a tire temperature using the calculated temperature severity number TSN.