A system for evaluating a battery assembly includes a sensing device configured to acquire parameters related to a group of cells of the battery assembly, and a diagnostic module. The diagnostic module is configured to perform estimating a state of charge (SOC) value for the group of cells based on measurements performed during a selected time window, calculating a statistical value related to the estimated SOC value for the group of cells, assigning the estimated SOC value to a selected bin of a plurality of SOC bins based on the statistical value, each SOC bin of the plurality of SOC bins including a subset of a range of SOC values, calculating a deviation of each SOC value in the selected bin relative to a plurality of SOC values in the selected bin, and determining whether the group of cells is healthy based on the deviation.
BATTERY CELL HEALTH EVALUATION BASED ON STATE OF CHARGE DEVIATION
2025-07-03
Patent
Electronic Resource
English
Method for controlling cell temperature deviation among battery packs
European Patent Office | 2024
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