Method for determining the length of the footprint on the ground of a tire of a wheel of a vehicle
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United States of America Patent
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-
May 17, 2011
Grant Date -
Aug 20, 2009
app pub date -
Feb 13, 2009
filing date -
Feb 15, 2008
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A method for determining, while a vehicle is traveling, the length of the footprint on the ground of a tire (7) including a metal belt, fitted to a rim (6) of a wheel of the vehicle. According to the invention, this method includes mounting a magnetic sensor (16) on the rim (6) and analyzing the signal representing the magnetic field measured by the magnetic sensor, so as to detect the variations of the magnetic field resulting from the deformations sustained by a circumferential zone of the tire (7) situated opposite the magnetic sensor (8) when, respectively, the circumferential zone enters into contact with the ground and leaves the ground.
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