Battery management apparatus and operating method thereof
AssigneeLG Energy Solution, Ltd.
InventorMyeong Hui Park
Life of this patent
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Abstract
A battery management apparatus according to an embodiment can include a plurality of balancing resistors respectively connected to a plurality of battery cells, a common resistor connected in parallel to the plurality of balancing resistors, a plurality of resistive switches connected between the plurality of balancing resistors and the common resistor, and a controller for calculating balancing times of the plurality of battery cells and control operations of the plurality of resistive switches based on the balancing times.
Claims16
A battery management apparatus comprising:
- a plurality of balancing resistors respectively connected to a plurality of battery cells;
- a common resistor connected in parallel to the plurality of balancing resistors;
- a plurality of resistive switches connected between the plurality of balancing resistors and the common resistor;
- and
- a controller configured to calculate balancing times of the plurality of battery cells and control operations of the plurality of resistive switches based on the balancing times,
- wherein the plurality of resistive switches includes more than one resistive switch connected to each of the plurality of balancing resistors between the plurality of balancing resistors and the common resistor.
An operating method of a battery management apparatus, the operating method comprising:
- calculating balancing times of a plurality of battery cells;
- selecting at least one target battery cell among the plurality of battery cells, based on the balancing times;
- and
- controlling an operation of a plurality of resistive switches disposed between a balancing resistor of a plurality of balancing resistors, connected to the at least one target battery cell among the plurality of battery cells, and a common resistor connected in parallel to the balancing resistor,
- wherein the plurality of resistive switches includes more than one resistive switch connected to each of the plurality of balancing resistors between the plurality of balancing resistors and the common resistor.
Dependencies are inferred from the claim text.