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System for evaluating the speed of a tyre

A technology for evaluating systems and tires, applied in tire installation, tire parts, car tire testing, etc., can solve the problem of not allowing cross-checking

Inactive Publication Date: 2017-11-28
OCIETE DE TECH MICHELIN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Currently, all known systems in their current state do not allow any cross-checking with other information about the vehicle whose speed is measured

Method used

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  • System for evaluating the speed of a tyre
  • System for evaluating the speed of a tyre
  • System for evaluating the speed of a tyre

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0032] exist Figure 1a and 1b In the example of , the speed assessment system is implemented as a wear measurement system comprising:

[0033] - Housing 10 comprising two access ramps 15 and a horizontal wear measurement area between said two access ramps 15 .

[0034] - two tire presence detection means, each of which comprises three piezoelectric sensors 110 along a transverse line in the rolling direction of the vehicle reaching the housing position. In this example, the piezoelectric sensor is a buzzer bonded to the structure of the housing 10 .

[0035] - Rows of wear measurement sensors 100 positioned along transverse lines in the rolling direction of the vehicle arriving on said casing 10 . These wear measurement sensors can, but are not inclined, be variable reluctance sensors or eddy current sensors. Alternatively, the row of electromagnetic wear sensors can also be replaced by an optical wear measurement system using the principle of laser triangulation.

[003...

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PUM

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Abstract

The invention relates to a system for evaluating the speed of a vehicle, said system comprising: a system for evaluating the condition of a tyre, comprising a casing that is positioned on the ground; means for determining at least two instants at which the vehicle passes over two optionally-different passage points of the casing of the measurement system; and means for calculating the passage speed of the vehicle over the casing according to the aforementioned passage instants and dimensional data of the casing and / or the vehicle. The invention also relates to a method using such a system.

Description

technical field [0001] The invention relates to a system for evaluating the speed of a vehicle. More particularly, the invention relates to an external system, that is to say a system not embedded in the vehicle. Background technique [0002] For measuring the speed of a motor vehicle, generally known are systems mounted on the vehicle which determine the vehicle speed as a function of the number of revolutions of the wheels of said vehicle. [0003] Also known are systems for estimating vehicle speed based on satellite positioning (GPS). The system allows the speed to be displayed in the vehicle to inform the driver. Also known is a system called "radar" used by the police. These systems generally perform velocity measurements based on the Doppler effect. [0004] It is an object of the present invention to provide a system which can be used in particular by traffic managers and which can be included in a more comprehensive system for diagnosing the state of vehicles an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01P3/64
CPCG01P3/64B60C11/246G01M17/02B60C25/007G01P3/66
Inventor T·勒杜D·马丁G·埃雷迪亚A·佩尔诺
Owner OCIETE DE TECH MICHELIN