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Method and system for determining operating parameters of a tyre during running of a vehicle

A technology of working parameters and tires, applied in the direction of tire measurement, vehicle parts, tire parts, etc.

Active Publication Date: 2010-06-23
PIRELLI TYRE SPA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This usually requires that the antennas arranged in the vehicle part are constantly exposed to damage from road hazards and thus can lead to many disadvantages

Method used

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  • Method and system for determining operating parameters of a tyre during running of a vehicle
  • Method and system for determining operating parameters of a tyre during running of a vehicle
  • Method and system for determining operating parameters of a tyre during running of a vehicle

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Embodiment Construction

[0067] figure 1 A sectional view of the wheel comprising a tire 11 and a supporting rim 12 is shown. figure 1 The tire 11 shown in is of the type commonly referred to as "tubeless", ie it does not include an inner tube. Such a tire can be inflated by means of an inflation valve 13 mounted on said rim 12 .

[0068] The tire 11 comprises a carcass 16 terminating in two beads 14 and 14' The beads 14 and 14' comprise respective reinforcing annular cores 15 and 15' called bead cores. The carcass 16 is formed by at least one reinforcing layer, consisting of fabric or wire, extending axially in a circular profile from one bead 14 to the other 14' and having its ends associated with the respective bead cores 15 and 15'. In tires of the so-called radial type, the aforementioned lines lie substantially in a plane containing the axis of rotation of the tyre. An annular structure 17 called a belt structure is placed in a radially outer position relative to the backbone 16 . Typi...

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Abstract

An oscillating structure is coupled to a crown portion of a tyre. The oscillating structure comprises a housing and a piezoelectric element coupled to said housing. The piezoelectric element is able to oscillate in an oscillation direction, which could match either a longitudinal or a radial direction of the tyre. An electrical signal generated by said piezoelectric element is processed so as to determine at least one operating parameter of the tyre. The processing comprises determining whether a rotation speed of said tyre is greater than a threshold speed; and, in the negative, extracting information for determining the at least one operating parameter of the tyre from a low-pass filtered signal. Such low-pass filtered signal is obtained by removing at least frequency components of saidelectrical signal having a frequency higher than or equal to a resonance peak frequency of said oscillating structure.

Description

technical field [0001] The invention relates to a method and a system for determining at least one operating parameter of a tire mounted on a vehicle. The at least one operating parameter may be, for example, the length of the contact area (or contact patch) between the tire and the rolling surface on which the tire rolls during operation of the vehicle, and / or the length of the tire mounted on the vehicle. the load experienced. Background technique [0002] In order to improve the safety of vehicles, it is becoming more and more important to include electronic devices in pneumatic tires. The tire electronics may include sensors and other components adapted to obtain information about the behavior of the tire and its various physical parameters, such as temperature, pressure, tire revolutions, vehicle speed, and the like. This information may become useful in tire monitoring and / or warning systems. Furthermore, the active control system of the vehicle may be based on info...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60C23/04H01L41/113H10N30/30
CPCB60C23/0411H02N2/18B60C23/0488B60C23/065B60C23/064
Inventor M·布鲁萨罗斯科F·曼科苏
Owner PIRELLI TYRE SPA
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