Patent ID: 9038465
Filing Date: 2015-05-26
Classification: G01P

Abstract:
1. A method of setting valid output sections of a 3-axis acceleration sensor mounted within a tire of a vehicle to measure accelerations in x-axis, y-axis and z-axis directions, comprising: setting an output signal of the 3-axis acceleration sensor in the z-axis direction as a reference signal, wherein the z-axis direction is perpendicular to a road surface; setting a specific section of the output signal in the z-axis direction as a valid section where a part of the tire where the 3-axis acceleration sensor is mounted contacts the road surface; and setting sections of output signals of the 3-axis acceleration sensor in the x-axis and y-axis directions corresponding to the valid section in the z-axis direction as valid sections in the x-axis and y-axis directions, wherein the specific section of the output signal in the z-axis direction is a section where a positive (+) peak value, a negative (−) peak value, and a positive (+) peak value of the output signal in the z-axis direction are represented.