METHOD FOR DIAGNOSING AN ENERGY STORAGE SYSTEM THAT ENABLES THE DETECTION OF AN ASSEMBLY ERROR

The diagnostic method using open-circuit voltage measurements and reference curves addresses assembly errors in electrochemical modules with distinct characteristics, ensuring optimal operation and preventing deterioration by correcting calibrations.

FR3168980A1Pending Publication Date: 2026-05-29STELLANTIS AUTO SAS
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Patent Information

Application Number
FR2024012980
Authority / Receiving Office
FR · FR
Patent Type
Applications
Current Assignee / Owner
Filing Date
2024-11-26
Publication Date
2026-05-29

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Abstract

The present invention relates to a diagnostic method (20) for an energy storage system to detect an assembly error in one electrochemical module among a plurality of interconnected modules within said system, comprising the following successive steps of measuring (E3) at least one open-circuit voltage value for each electrochemical module of said system at a reference state of charge, comparing (E4) data from the measurement, for each electrochemical module of said system, with at least the reference value of an open-circuit voltage curve corresponding to said reference state of charge, and detecting (E5) an assembly error for each electrochemical module as a function of a deviation between said respective data and the reference value. Figure 2.
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Citation Information

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