Device for estimating state of charge of battery
AssigneeLG Chem, Ltd.
InventorYoung-Jin KIM
Life of this patent
Estimating the term…
Abstract
A device for estimating state of charge of battery of the present disclosure includes: a sensing unit configured to measure at least one of a first voltage and an OCV of a battery; and a processor operably coupled to the sensing unit. The processor is configured to estimate a second voltage of the battery based on the OCV of the battery or a previously estimated first SOC, calculate a counted voltage error by counting a voltage error between the first voltage and the second voltage of the battery, correct the second voltage of the battery depending on whether the counted voltage error is included in a reference error range, and estimate a first SOC of the battery based on the second voltage or the corrected second voltage.
Claims11
A device for estimating a state of charge (SOC) of a battery, comprising:
- a sensing unit configured to measure at least one of a first voltage and an open circuit voltage (OCV) of the battery;
- and
- a processor operably coupled to the sensing unit,
- wherein the processor is configured to estimate a second voltage of the battery based on the OCV of the battery or a previously estimated first SOC, calculate a counted voltage error by counting a voltage error between the first voltage and the second voltage of the battery, correct the second voltage of the battery depending on whether the counted voltage error is included in a reference error range, and estimate a first SOC of the battery based on the second voltage or the corrected second voltage.
- estimating the state estimating the state
Dependencies are inferred from the claim text.