Tire condition estimating device, control method of the tire condition estimating device, and non-temporary storage medium

摘要

A tire condition estimation device (1; 1A) has an electronic control unit. The electronic control unit is configured to detect the generated force of a tire. The electronic control unit is configured to detect a coefficient of friction between the tire and a road surface. The electronic control unit is configured to derive a grip margin of the tire. The electronic control unit is configured to estimate a contact length of the tire in an uncontrolled driving state. The electronic control unit is configured to estimate cornering performance of the tire based on the estimated contact length of the tire and the detected generated force of the tire.