Method of estimating the temperature of the air in the internal cavity of a tire and application to the detection of abnormal operating of a running-flat system
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Abstract
A method of estimating the temperature of the air in the internal cavity of a tire in which:
- prior to normal operation, a series of running tests are carried out on the tire provided with a means of measuring the internal air temperature at given speeds V and external temperatures Tamb, the tire supporting a given load and the cavity being at a given internal relative pressure, and an adjustment is made to a function giving the temperature of the internal air Tai according to the parameters of speed and external temperature; and
- in normal operation, the tire equipping a vehicle under the above conditions of load and relative pressure, the internal air temperature is estimated according to the speed of the vehicle and the temperature external to the vehicle.
The method ia applied to the detection of abnormal operating in particular of a running-flat system.
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Current AssigneeMichelin Recherche et Technique SA (Compagnie Generale DES Etablissements Michelin SCA)
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Original AssigneeMichelin Recherche et Technique SA (Compagnie Generale DES Etablissements Michelin SCA)
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InventorsBerger, Eric, Shepherd, Russell, Abinal, Richard
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Primary Examiner(s)OEN, WILLIAM L
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Application NumberUS10/826,129Publication NumberTime in Patent Office760 DaysField of Search731/46, 731/462, 731/463, 731/464, 731/465, 731/468, 737/08, 340442-447US Class Current73/146CPC Class CodesB60C 23/20 Devices for measuring or si...
