METHOD FOR DISCHARGE BALANCING OF A BATTERY ARRAY
First Claim
1. A method for discharge balancing for a battery array including a plurality of partitions of battery cells, comprising:
- pumping charge from a first partition of battery cells to a high capacity storage device; and
transferring charge from said high capacity storage device to a second partition of battery cells;
wherein the capacity of said first partition of battery cells is higher than the capacity of said second partition of battery cells.
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Abstract
A method for discharge balancing for a battery array including a plurality of partitions of battery cells 210 is disclosed. The method includes: transferring charge from a first partition of battery cells to a high capacity storage device 240; and transferring charge from the high capacity storage device 240 to a second partition of battery cell; wherein the capacity of the first partition of battery cells is higher than the capacity of the second partition of battery cells. The method may further include determining the discharge status of each partition of battery cells 210. Charge is transferred from the partition of battery cells with the highest charge capacity to the high capacity storage device 240 based on the discharge status of the partitions. Furthermore, charge may be transferred from the high capacity storage device 240 to a partition of battery cells with the lowest charge capacity based on the discharge status of the partitions.
38 Citations
20 Claims
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1. A method for discharge balancing for a battery array including a plurality of partitions of battery cells, comprising:
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pumping charge from a first partition of battery cells to a high capacity storage device; and transferring charge from said high capacity storage device to a second partition of battery cells; wherein the capacity of said first partition of battery cells is higher than the capacity of said second partition of battery cells. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. An apparatus for discharge balancing for a battery array including a plurality of partitions of battery cells, comprising:
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a first switching circuit for transferring charge from a first partition of battery cells to a high capacity storage device; and a second switching circuit for transferring charge from said high capacity storage device to a second partition of battery cells; wherein the capacity of said first partition of battery cells is higher than the capacity of said second partition of battery cells. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20)
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Specification