Method for ascertaining the pressure and the profile depth in a vehicle tyre

A tread depth, tire technology, applied in the field of determining vehicle tire pressure and tread depth, can solve the problems of inaccuracy, tire tread interference can not be considered, etc.

Active Publication Date: 2010-10-06
THE GOODYEAR TIRE & RUBBER CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However the speed measurement depends on the slope of the edge of the tire pressure signal and is very inaccurate due to the pattern factor
[0003] However, the interfering effect of tire tread cannot be considered in this process

Method used

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  • Method for ascertaining the pressure and the profile depth in a vehicle tyre
  • Method for ascertaining the pressure and the profile depth in a vehicle tyre
  • Method for ascertaining the pressure and the profile depth in a vehicle tyre

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Embodiment Construction

[0045] In the figure, arrow A indicates the direction of travel. The first load sensor row 10 (such as 1, 3, 5...) is offset relative to the second load sensor row 20 (such as 2, 4, 6...), and the offset in the direction perpendicular to the direction of travel The amount is x. The time difference produced by the vehicle's speed when the tires are in contact with the two rows can be used to determine this speed. The advantage of this approach is that the required number of sensors in a row is only that required in the prior art, and it also has the advantage of obtaining velocity information. The load sensors are not electrically connected in series, but can be read simultaneously or at least simultaneously according to the data processing program.

[0046] The sensor surfaces must be separated by a sufficient distance from each other so that they do not overlap each other. Therefore, the narrow gap left between the sensor surfaces remains unmeasured.

[0047] The offset a...

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PUM

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Abstract

A method for ascertaining the pressure and the profile depth in a pneumatic vehicle tyre which is fitted to a vehicle, wherein the pressure is detected with the aid of an arrangement comprising load sensors, which arrangement supplies force signals for a two-dimensional pattern of the force distribution which is exerted by the vehicle tyre in contact with the sensors when the vehicle moves over the arrangement, wherein the tyre pressure is determined from the force distribution independently of the method of manufacture or the model of the tyre and of the vehicle, is characterized in that the profile depth of the tyre is determined before, while or after the pressure is determined.

Description

technical field [0001] The present invention relates to a method of determining the pressure and tread depth of an inflated vehicle tire by means of an array of load cells providing a force signal of a two-dimensional pattern of the force distribution exerted by the tire in contact with the sensors, enabling the vehicle to travel over the array The tire pressure is measured from time to time, and the tire pressure is determined from the force distribution independently of the way it is made or the model of the wheel and vehicle, and can optionally be displayed. Background technique [0002] A method of this type for determining the air pressure of a pneumatic vehicle tire is described in patent document US 5,396,817. This prior art publication describes a linear array of force sensors on which a vehicle tire rolls. Vehicle speed can be determined from the rise and fall of the signal as the tire rolls over the load sensor array. The measurement of speed however depends on t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01L17/00G01B21/18
CPCG01B11/22G01L17/005
Inventor 乌尔里希·平厄尔
Owner THE GOODYEAR TIRE & RUBBER CO
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