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Device for evaluating the firmness of a ground

A ground and hardness technology, applied in the input parameters of external conditions, control devices, tire measurement, etc., can solve the problems of not establishing ground hardness and reducing the work efficiency of drivers.

Active Publication Date: 2020-06-19
MICHELIN & CO CIE GEN DES ESTAB MICHELIN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the connection between the hardness of the ground and the parameters related to the deformation of the tire casing has not been established
[0006] The present invention aims at proposing a method for instantly measuring the hardness of the ground without reducing the driver's work efficiency by making measurements on the tire casings of the mounted components of the vehicle under the conditions of use aimed at the driver of the vehicle

Method used

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  • Device for evaluating the firmness of a ground
  • Device for evaluating the firmness of a ground
  • Device for evaluating the firmness of a ground

Examples

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Embodiment Construction

[0101] figure 1 A flow chart showing various mandatory and optional steps pertaining to the method for assessing the hardness of a ground. The starting point is located in the signal 102 emitted by the sensor sensitive to the circumferential curvature. The spatial discretization of this signal needs to be sufficient to properly describe the pathway through the contact region. At least six measurement points are required in the contact area. This signal may be a direct measurement of the circumferential curvature via a flex sensor, or an indirect measurement via, for example, a uniaxial accelerometer positioned radially relative to the tire casing, or an indirect measurement via a piezoelectric sensor whose The primary direction is located circumferentially relative to the tire casing.

[0102] This signal may be supplemented by other signals 101 and 103 useful for exploiting the curvature signal 102 . Specifically, in the case that the curvature signal 102 is affected by v...

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Abstract

The invention relates to a method for evaluating the firmness of a ground on which travels a vehicle equipped with at least one mounted assembly having a radial rigidity kradial, comprising a tyre casing which has a crown, two sides and two beads and is equipped with a sensor that is sensitive to the circumferential curvature and positioned to the right of the crown, said method comprising the following steps: estimating a value of curvature pho A of the tyre casing corresponding to a first continuous mode of the tyre casing in contact with the ground; and evaluating the relative firmness of the ground in relation to the radial rigidity kradial of the mounted assembly, depending on the value of curvature pho A of the tyre casing.

Description

technical field [0001] The invention relates to a method for assessing the hardness of a ground on which a mounted assembly travels, the mounted assembly comprising a tire casing equipped with means for measuring the deformation of the tire casing. Background technique [0002] In a specific application scenario, in order to adapt the conditions of use of the mounted component to the parameters of the ground so as not to damage the ground and / or the mounted component, it is most important to consider the hardness of the ground pressed by the tire casing, especially the tire casing. Additionally, the identification of the ground, and especially the hardness of the ground, of course becomes important to anyone who directly or indirectly utilizes this information (eg farmers). In the case of roads with asphalt or concrete pavements, the structure of which is situated on a solid foundation for rigidity, the standardized conditions of use of the mounted components minimize the in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60C23/06B60T8/172B60W40/06
CPCB60C23/064B60C2019/004B60T8/1725B60T2210/10B60W40/06B60W2530/20B60W2552/00
Inventor P-A·贝古A·帕蒂勒J-M·瓦舍朗O·布哈迪达
Owner MICHELIN & CO CIE GEN DES ESTAB MICHELIN
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