Method and system for identifying the wheel assemblies of a vehicle

WO2026131362A1PCT designated stage Publication Date: 2026-06-25MICHELIN & CO (CIE GEN DES ESTAB MICHELIN)
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Patent Information

Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
MICHELIN & CO (CIE GEN DES ESTAB MICHELIN)
Filing Date
2025-12-10
Publication Date
2026-06-25

AI Technical Summary

Technical Problem

Existing systems struggle to reliably identify moving assemblies, such as tires, on vehicles using radio frequency transponders due to energy-intensive communication and interference from non-moving objects, necessitating a method to distinguish between moving and fixed devices during vehicle operation.

Method used

A method involving two detection phases, one stationary and one during movement, with radio frequency interrogation and analysis of backscattered signals to determine unique identifiers, using read rates and dispersion metrics to differentiate between moving and fixed transponders.

Benefits of technology

Enables accurate identification of vehicle assemblies by distinguishing between moving and fixed transponders, ensuring efficient radio frequency communication and reducing interference from external objects.

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Abstract

The invention relates to a method for identifying the wheel assemblies of a vehicle, each wheel assembly comprising a radio frequency transponder with an identifier, the vehicle comprising a radiocommunication system coupled to a radio frequency antenna, the radio frequency antenna covering a spatial region of the vehicle in which the wheel assemblies are located, which method comprises the following phases: • Initiating a first detection phase with the vehicle being at a standstill, followed by a second detection phase with the vehicle moving, each phase comprising: - Initiating an interrogation phase for a time period T; - Receiving, during the time period T, radio waves backscattered by the radio frequency transponders; • Initiating an analysis phase comprising: - Identifying the encoded responses; - Determining the unique identifier; - For each unique identifier determined, evaluating the reading rate for each detection phase; - Deducing whether the unique identifier determined is attached to a wheel assembly of the vehicle.
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