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Method for determining at least one parameter representative of at least one interaction along a longitudinal direction between a tyre for vehicle and the ground

  • US 8,296,080 B2
  • Filed: 11/29/2006
  • Issued: 10/23/2012
  • Est. Priority Date: 11/29/2006
  • Status: Active Grant
First Claim
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1. A method of determining at least one main parameter representative of at least one interaction along a longitudinal direction between a tyre and ground, wherein a footprint area is defined between a first and a second longitudinal ends, comprising the following steps:

  • identifying a first parameter representative of a radial deformation of said tyre;

    determining a first and a second values of said first parameter in a neighbourhood of the first longitudinal end of the footprint area and in a neighbourhood of the second longitudinal end of the footprint area, respectively, wherein the first value is associated with a first time instant and the second value is associated with a second time instant;

    calculating a linear combination of said first and second values, thereby obtaining a second parameter;

    determining a third parameter representative of an angular velocity of said tyre;

    calculating a ratio between said second and third parameters; and

    calculating said main parameter starting from said ratio, according to an algorithm, which main parameter is representative of at least one interaction along a longitudinal direction between said tyre and the ground.

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