Patent ID: 6688168
Filing Date: 2004-02-10
Classification: G01G

Abstract:
A method for determining the axle load on a rotating tire of a moving vehicle comprising the steps of:a) empirically determining a first relationship between the pressure of a test tire and the rolling radius of the test tire at a constant axle load on the test tire, wherein the pressure is measured by a pressure sensor, and wherein the rolling radius is determined from the measured rotational speed of the test tire; b) empirically determining a second relationship between the axle load on the test fire and the rolling radius of the test tire at a constant pressure of the test tire, wherein the axle load is a measured axle load, and wherein the rolling radius is determined from the measured rotational speed of the test tire; c) after steps a) and b), taking a measurement of the pressure of the rotating tire using a pressure sensor; d) after steps a) and b), taking a measurement of the rotational speed of the rotating tire; and e) determining the axle load on the rotating tire from the measurements of steps c) and d) and from the first and second relationships of steps a) and b).