Battery soc estimating apparatus and method
AssigneeLG Energy Solution, Ltd.
InventorsSeung-Hyun KIM, Hyun-Chul LEE, Dong-Keun KWON, An-Soo KIM, Chae-Bin SHIN
Life of this patent
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Abstract
A battery state of charge (SOC) estimating apparatus can include a control unit configured to change a C-rate included in a control signal in response to a voltage value of a battery measured in a charging and discharging process of the battery reaching a preset threshold voltage value, transmit the control signal including the changed C-rate to a charging and discharging unit configured to charge and discharge the battery at the C-rate included in the control signal to charge and discharge the battery, and estimate a SOC of the battery based on a result of comparing the changed C-rate with a preset cutoff value.
Claims12
A battery state of charge (SOC) estimating apparatus, comprising:
- a control unit configured to:
- change a C-rate included in a control signal in response to a voltage value of a battery measured in a charging and discharging process of the battery reaching a preset threshold voltage value,
- transmit the control signal including the changed C-rate to a charging and discharging unit configured to charge and discharge the battery at the C-rate included in the control signal to charge and discharge the battery, and
- estimate a SOC of the battery based on a result of comparing the changed C-rate with a preset cutoff value.
A battery state of charge (SOC) estimating method, comprising:
- a C-rate changing step of changing a C-rate included in a control signal in response to a voltage value of a battery measured in a charging and discharging process of the battery reaching a preset threshold voltage value;
- a control signal transmitting step of transmitting the control signal including the changed C-rate to a charging and discharging unit configured to charge and discharge the battery at the C-rate included in the control signal to charge and discharge the battery, and
- a SOC estimating step of estimating a SOC of the battery based on a result of comparing the C-rate changed in the C-rate changing step with a preset cutoff value.
Dependencies are inferred from the claim text.