Method and apparatus for estimating current
First Claim
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1. A method of estimating current, the method comprising:
- receiving a voltage value of a battery pack and voltage values of cells comprised in the battery pack from a voltage sensor; and
estimating a current of the battery pack based on the voltage value of the battery pack, the voltage values of the cells comprised in the battery pack, and resistance components disposed within the battery pack,wherein the resistance components comprise resistance values of elements comprised in the battery pack, andwherein the elements comprised in the battery pack comprisea connection tab configured to connect the cells;
a busbar comprising a portion of the cells, and configured to connect battery modules constituting the battery pack;
a terminal of the battery pack; and
an inner wire of the battery pack.
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Abstract
A method and apparatus for estimating current is disclosed. The current estimation apparatus may receive a voltage value of a battery pack and voltage values of cells included in the battery pack, and may estimate a current of the battery pack based on the voltage value of the battery pack, the voltage values of the cells included in the battery pack, and resistance components within the battery pack.
23 Citations
14 Claims
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1. A method of estimating current, the method comprising:
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receiving a voltage value of a battery pack and voltage values of cells comprised in the battery pack from a voltage sensor; and estimating a current of the battery pack based on the voltage value of the battery pack, the voltage values of the cells comprised in the battery pack, and resistance components disposed within the battery pack, wherein the resistance components comprise resistance values of elements comprised in the battery pack, and wherein the elements comprised in the battery pack comprise a connection tab configured to connect the cells; a busbar comprising a portion of the cells, and configured to connect battery modules constituting the battery pack; a terminal of the battery pack; and an inner wire of the battery pack. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A current estimation apparatus comprising:
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a receiver configured to receive a voltage value of a battery pack and voltage values of cells comprised in the battery pack from a voltage sensor; and an estimator configured to estimate current of the battery pack based on the voltage value of the battery pack, the voltage values of the cells comprised in the battery pack, and resistance components within the battery pack, wherein the resistance components comprise resistance values of elements comprised in the battery pack, and wherein the elements comprised in the battery pack comprise a connection tab configured to connect the cells; a busbar comprising a portion of the cells, and configured to connect battery modules constituting the battery pack; a terminal of the battery pack; and an inner wire of the battery pack. - View Dependent Claims (10, 11, 12, 13, 14)
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Specification