Patent ID: 8332092
Filing Date: 2012-12-11
Classification: B60C,B60T

Abstract:
1. A computer-implemented method of a tire monitoring system having at least one computer processor for detecting a state of a vehicle tire and a roadway, the method comprising: generating, using at least one acceleration sensor disposed in a tire interior, a signal that represents periodically alternating phases of a centripetal acceleration and is assigned to physical variables of the vehicle tire and the roadway in those phases in which the signal drops below a lower limit value; and determining a tire state and characteristics of the roadway based on the signal; wherein a signal spectrum is obtained from the signal, and wherein the determined signal spectrum at least partially includes vibrations that are generated by a movement of a part of a running surface of the vehicle tire adjacent to the acceleration sensor when rolling on the roadway; wherein a vehicle tire is assigned a setpoint signal strength and a setpoint frequency spectrum of the signal spectrum, and an actual signal strength and an actual frequency spectrum of the signal spectrum are determined, and a profile height and material characteristics of the vehicle tire are determined by a comparison of the actual signal strength with the setpoint signal strength and the actual frequency spectrum with the setpoint frequency spectrum.