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Method for detecting leakage in tire of stationary vehicle

A detection method and tire technology, applied in tire measurement, vehicle parts, tire parts, etc., can solve problems such as risk reduction, leakage, unsuitable for driving, etc.

Inactive 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

[0004] These self-sealing products do not completely eliminate the risk of a flat tire after a puncture, but they can still significantly reduce the risk
It should also be noted that a significant portion of residual leaks are slow leaks or very slow leaks that can go on for days or even weeks before being detected by current Tire Pressure Monitoring Systems (TPMS), which is common Yes, the vehicle's occupants returned to their vehicle and found that the vehicle had a flat tire and was therefore unfit to drive

Method used

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  • Method for detecting leakage in tire of stationary vehicle
  • Method for detecting leakage in tire of stationary vehicle

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Embodiment Construction

[0045] figure 1 A diagram showing the main steps of monitoring the resting mode of operation of a component according to one of the objects of the present invention.

[0046] The monitoring component in question is arranged in the tire inner cavity of the vehicle, and is specifically equipped with a pressure sensor, a temperature sensor, a microprocessor, a non-volatile memory, and a clock. The components are capable of sending and receiving radio signals. The component has a vehicle running mode of operation and a vehicle stationary mode of operation.

[0047] The drive mode is able to warn the driver of the vehicle in the event of a flat tire, in particular if the pressure drops by more than 20% relative to the nominal relative pressure value when cool as specified by the vehicle manufacturer.

[0048] This monitoring unit forms part of a monitoring system for vehicle tires consisting of four monitoring units (one for each tire) and a central unit or UC. In driving mode, ...

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Abstract

A method for detecting a leak in a tire of a vehicle, the tire comprising a member for measuring the pressure and the temperature with a driving operating mode and a stationary operating mode, which involves determining the stopping of the vehicle; next, the stationary operating mode is activated in order to detect, while the vehicle is stationary, the presence or otherwise of leakage of inflationgas from the tire.

Description

technical field [0001] The invention relates to a method for detecting tire leaks of a vehicle. It relates more particularly to the use of measurements taken when the vehicle is stationary. Background technique [0002] Known tire inflation pressures are insufficient to provide reliable and useful information to the driver of the vehicle. Furthermore, constantly consulting these instructions can be laborious and not really practical. In fact, due to the heat caused by the hysteresis loss of the mixture that makes up the tire, the influence of the heat dissipated by the brakes and the load transfer caused by the small changes in the volume of the tire, the pressure of the inflation gas in the tire cavity during driving and / or Temperature measurements vary widely. This is why, for private cars, the usual vehicle tire pressure monitoring system (Tire Pressure Monitoring System, TPMS) usually only when the inflation pressure of the tire is less than about 20% of the nominal i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60C23/04
CPCB60C23/0457B60C23/0476B60C23/0454
Inventor M·格雷克O·米尔霍夫
Owner MICHELIN & CO CIE GEN DES ESTAB MICHELIN