TIRE WEAR MEASUREMENT DEVICE USING TIRE BENDING STIFFNESS VARIATION AND TIRE WEAR MEASUREMENT METHOD USING SAME

摘要

An embodiment of the present invention provides a technique for estimating a change in bending stiffness characteristics of a tire and measuring a wear amount of a tire tread using this. An apparatus for measuring tire wear using a change in bending stiffness of a tire according to an embodiment of the present invention includes: a signal receiving unit for measuring an acceleration inside the tire with respect to an axial direction, which is a radial direction of the tire, for each point inside the tire; A signal analysis unit for estimating a tread wear rate of the tire by receiving signal information from the signal receiving unit and calculating a rate of change in the bending stiffness of the tire using the axial acceleration inside the tire; A transmission unit for receiving and transmitting analysis information, which is information on the tread wear rate of the tire, from the signal analysis unit; And a control module receiving analysis information from the transmission unit and generating a control signal for a vehicle on which a tire is installed. Meanwhile, the physical changes were derived using a mathematical model (Flexible Ring Tire Model).