US 11,691,464 B2
Methods for detecting and locating a thermal anomaly for a mounted assembly of a vehicle
Frederic Domprobst, Clermont-Ferrand (FR); and Vincent Pilon, Clermont-Ferrand (FR)
Assigned to COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN, Clermont-Ferrand (FR)
Appl. No. 17/256,259
Filed by COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN, Clermont-Ferrand (FR)
PCT Filed Jun. 11, 2019, PCT No. PCT/EP2019/065247
§ 371(c)(1), (2) Date Dec. 28, 2020,
PCT Pub. No. WO2020/001975, PCT Pub. Date Jan. 2, 2020.
Claims priority of application No. 1855830 (FR), filed on Jun. 28, 2018.
Prior Publication US 2021/0229508 A1, Jul. 29, 2021
Int. Cl. B60C 23/04 (2006.01); B60C 23/20 (2006.01)
CPC B60C 23/0476 (2013.01) [B60C 23/20 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A method for locating a thermal anomaly on tire-wheel assemblies of a vehicle, each of which is equipped with a mounting wheel on which a pneumatic tire is mounted, the method comprising:
implementing, on a reference set comprising at least one tire-wheel assembly selected from among the tire-wheel assemblies of the vehicle, a method for detecting a thermal anomaly comprising the steps of
measuring an internal pressure P and temperature T of the tire-wheel assembly using a sensor attached to the mounting wheel,
calculating a monitoring ratio P/T which is a function of the measured pressure P and of the measured temperature T and a function of each of the tire-wheel assemblies of the reference set, and
repeating the preceding steps and tracking an evolution in a value of the monitoring ratio P/T in order to determine a thermal anomaly when the internal temperature of the tire-wheel assembly increases more rapidly than the internal pressure of the tire-wheel assembly;
implementing the method for detecting the thermal anomaly on a comparison tire-wheel assembly of the vehicle not belonging to the reference set; and
calculating a difference ΔP/T between the monitoring ratios P/T of the reference set and of the tire-wheel assembly compared during iterations in order to determine whether a thermal anomaly is coming from the reference set or from the compared tire-wheel assembly.