Estimating the lifespan of a battery in a device associated with a tire
A statistical nomogram-based method estimates tire device battery lifespan by comparing increment indicators to threshold values, addressing energy and transmission challenges in TMS systems.
FR3168797A1Pending Publication Date: 2026-05-29MICHELIN & CO (CIE GEN DES ESTAB MICHELIN)
Patent Information
- Authority / Receiving Office
- FR · FR
- Patent Type
- Applications
- Current Assignee / Owner
- MICHELIN & CO (CIE GEN DES ESTAB MICHELIN)
- Filing Date
- 2024-11-27
- Publication Date
- 2026-05-29
AI Technical Summary
Technical Problem
The increasing number of sensors in tire management systems (TMS) leads to high energy consumption and radio transmission issues, with battery-powered devices in tires facing challenges in estimating their lifespan due to inaccessible battery locations.
Method used
A method using a statistical nomogram to estimate battery lifespan by transmitting frames with an increment indicator, comparing it to a threshold value, and determining lifespan based on this comparison, without impacting the device's operation.
Benefits of technology
Accurately estimates the remaining battery life without increasing power consumption, enabling efficient data transmission and management.
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Smart Images
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Abstract
A method for estimating the lifespan of a battery (27) in a device (20) associated with a tire (11) of a motor vehicle, comprising the steps of: transmitting (S1) a frame (40) to a remote receiving device (30), containing a value of an increment indicator (442) that is incremented during transmission; comparing (S2) this value to a threshold value (Ids) corresponding to a threshold population (Ps) associated with the end of its lifespan, using a statistical nomogram (51); and determining (S3) an estimate of said lifespan based on this comparison. Figure 1 for the abstract
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