Apparatus and method for controlling balance of battery
AssigneeSamsung SDI Co., Ltd.
InventorsJong Hun Lee, Woo Choul Kim
Life of this patent
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Abstract
An apparatus for controlling balance of a battery includes a battery including multiple battery cells, a sensor measuring voltages of the multiple battery cells and a processor monitoring states of the multiple battery cells to detect failure of the multiple battery cells based on data obtained through the sensor, setting a defective battery cell as an exclusion cell and performing an imbalance determination and balancing operation with respect to the multiple battery cells excluding the battery cell set as the exclusion cell.
Claims18
An apparatus for controlling balance of a battery, the apparatus comprising:
- a battery comprising multiple battery cells;
- a sensor measuring voltages of the multiple battery cells;
- and
- a processor monitoring states of the multiple battery cells to detect failure of the multiple battery cells based on data obtained through the sensor, setting a defective battery cell as an exclusion cell and performing an imbalance determination and balancing operation with respect to the multiple battery cells excluding the battery cell set as the exclusion cell, wherein the processor detects a battery cell having a lowest voltage among remaining battery cells excluding the battery cell set as the exclusion cell among the multiple battery cells and performs an imbalance determination as to the battery cells with reference to the battery cell having the lowest voltage among the remaining battery cells.
A method for controlling balance of a battery, the method comprising:
- monitoring, by a processor, states of multiple battery cells to detect failure of the multiple battery cells based on voltages of the multiple battery cells measured through a sensor;
- setting, by the processor, a defective battery cell as an exclusion cell;
- performing, by the processor, an imbalance determination as to the multiple battery cells excluding the battery cell set as the exclusion cell;
- and
- performing, by the processor, a balancing operation with respect to the multiple battery cells excluding the battery cell set as the exclusion cell if the multiple battery cells are in an imbalance state,
- wherein performing an imbalance determination includes detecting a battery cell having a lowest voltage among remaining battery cells excluding the battery cell set as the exclusion cell among the multiple battery cells, and performing an imbalance determination with reference to the battery cell having the lowest voltage among the remaining battery cells.
Dependencies are inferred from the claim text.