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Method and system for evaluating parameters of a tyre

A technology for evaluating systems and tires, which is applied in the directions of automobile tire testing, vehicle testing, and machine/structural component testing, etc. It can solve problems such as the determination of ground contact length distortion, the number of operations limited by computing power, and the difference in output results, etc., to achieve The effect of increasing capacity

Pending Publication Date: 2021-08-06
MICHELIN & CO CIE GEN DES ESTAB MICHELIN
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  • Abstract
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Problems solved by technology

However, as can be seen from the figure, the curve exhibits significant noise
It is therefore not possible to position the line at the lowest point of the curve; therefore, the user of the box must determine the height of the line, and this determination is sometimes somewhat unstable, since small changes in the initial parameters can lead to large differences in the output results, resulting in distortion of the ground plane length determination
[0011] Finally, it has been observed that the computational power of the processors integrated into state-of-the-art boxes limits the number of operations that can be performed in a given time
Furthermore, the limited size of the associated memory does not allow storing all data to be able to use it again later

Method used

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  • Method and system for evaluating parameters of a tyre

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Embodiment Construction

[0040] figure 2 A vehicle 5 is shown with its tires 8 rolling on a box 6 which is part of the evaluation system according to the invention. A passenger car is shown in the figure, but such a system could also be used for any other vehicle, such as a heavy vehicle or a coach.

[0041] As the tire rolls on the box 6, the state of wear of the tire 8 is detected without the need to stop the vehicle or remove the tire from the vehicle. Advantageously, the case 6 is integrated into the rolling surface. Specifically, if the box is protruding, the dynamic deflection will change when the vehicle climbs on the box, which may lead to errors in the deflection determination.

[0042] In this embodiment, the box takes the form of a speed bump for a land vehicle, made of a material suitable to withstand the passage of multiple tires without degradation. Said materials are, for example, composites based on vinyl ester resins, reinforcing glass fibers and various additives known to those s...

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Abstract

The invention relates to a system and a method for evaluating the condition of a tyre installed on a vehicle.

Description

technical field [0001] The present invention relates to a system for assessing the condition of a tyre, more particularly a system for assessing parameters such as wear, deflection or pressure and load of the tyre. [0002] It is well known that the tread of a pneumatic tire (whether it is to be fitted to a passenger vehicle, a heavy vehicle, a civil engineering vehicle, or another vehicle) is provided with a tread pattern consisting in particular of various longitudinal, transverse or oblique main The pattern elements or basic blocks bounded by the grooves may also have various thinner cuts or sipes. The grooves form channels for water drainage when rolling on wet ground and define the leading edges of the tread elements. [0003] When a pneumatic tire is new, the tread is at its maximum height. This initial height may vary depending on the type of pneumatic tire involved and its intended use; for example, a "winter" pneumatic tire will generally have a greater tread depth ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M17/02G01L17/00
CPCG01M17/02G01L17/005G01M17/027
Inventor D·马丁
Owner MICHELIN & CO CIE GEN DES ESTAB MICHELIN
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