TIRE GROUND CONTACT CHARACTERISTIC MEASURING METHOD, TIRE GROUND CONTACT CHARACTERISTIC MEASURING DEVICE, AND TIRE GROUND CONTACT CHARACTERISTIC MEASURING SYSTEM

摘要

A tire ground contact characteristic measuring method according to the present invention includes a reproducing step of reproducing, in a tire, a transient variation in a tire attitude during travel of an actual vehicle, a stress measuring step of a stress measuring means embedded in a rotatable rotating drum measuring stress acting on the tire in contact with the rotating drum which is being driven in rotation, and a calculating step of calculating, on the basis of the stress measured by the stress measuring means, a tire ground contact characteristic, which is a characteristic in a ground region, in contact with the rotating drum, of a tread surface of the tire, wherein the tire ground contact characteristic calculated in the calculating step is the tire ground contact characteristic of the tire corresponding to the tire attitude of the actual vehicle at each time point during a period in which the transient variation is occurring.