MODEL FOR PREDICTING WEAR AND THE END OF LIFE OF A TIRE

A method for estimating the overall wear of a tyre having a crown, the crown comprising a tread having a mean thickness E, the tyre delimiting an internal cavity, comprises the following steps:acquiring a transfer function F of the tyre on a reference ground depending on influencing factors and the...

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Bibliographische Detailangaben
Hauptverfasser:	ABINAL, RICHARD, FRAENKEL, ANNE-LAURE, DELIAS, NICOLAS, DUBOURG, VINCENT
Format:	Patent
Sprache:	eng
Schlagworte:	CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE ORDIFFERENT FUNCTION CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES DEVICES OR ARRANGEMENTS RELATED TO TYRES PERFORMING OPERATIONS REPAIRING, OR CONNECTING VALVES TO, INFLATABLE ELASTIC BODIESIN GENERAL ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TOTHE CONTROL OF A PARTICULAR SUB-UNIT TRANSPORTING TYRE CHANGING OR REPAIRING TYRE INFLATION VEHICLE TYRES VEHICLES IN GENERAL
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Beschreibung
Zusammenfassung:	A method for estimating the overall wear of a tyre having a crown, the crown comprising a tread having a mean thickness E, the tyre delimiting an internal cavity, comprises the following steps:acquiring a transfer function F of the tyre on a reference ground depending on influencing factors and the thickness E;acquiring a passage function β of the mounted assembly, said passage function being defined for a section of road;in a measurement cycledetermining a force FX and a rate of slip g % at the wheel centre of the tyre, when running in a straight line involving variations in acceleration on the dry section of road;determining a load Z1 experienced by the mounted assembly;determining a temperature T1 of the mounted assembly;determining an inflation pressure P1 of the internal cavity.