Battery Management Apparatus and Method
AssigneeLG Energy Solution, Ltd.
InventorsHee-Seok Jeong, Yoon-Jung Bae
Life of this patent
Estimating the term…
Abstract
A battery management apparatus includes a measuring unit configured to measure a voltage of a battery after discharge of the battery is terminated to a preset discharge termination voltage in every cycle, and a control unit configured to receive voltage information of the battery from the measuring unit in every cycle, calculate a first voltage deviation of the battery based on a preset first criterion voltage and the voltage of the battery, calculate a second voltage deviation between the first voltage deviation and a preset second criterion voltage in each cycle, and adjust the discharge termination voltage based on a criterion deviation set to correspond to a current cycle and the second voltage deviation calculated in the current cycle.
Claims10
A battery management apparatus, comprising:
- a voltage sensor configured to measure a voltage of a battery after discharge of the battery is terminated at a preset discharge termination voltage in every charge/discharge cycle of the battery;
- and
- a controller configured to, for each measured voltage of the battery:
- receive the measured voltage from the voltage sensor;
- calculate a first voltage deviation of the battery based on a preset first threshold voltage and the measured voltage;
- calculate a second voltage deviation between the first voltage deviation and a preset second threshold voltage;
- and
- adjust the discharge termination voltage based on a threshold deviation set to correspond to the second voltage deviation.
A battery management method, comprising:
- measuring, by a voltage sensor, a voltage of a battery after discharge of the battery is terminated at a preset discharge termination voltage in every charge/discharge cycle of the battery;
- calculating, by a controller, a first voltage deviation of the battery based on a preset first threshold voltage and the measured voltage of the battery;
- calculating, by the controller, a second voltage deviation between the first voltage deviation and a preset second threshold voltage;
- and
- adjusting, by the controller, the discharge termination voltage based on a threshold deviation set to correspond to a current cycle and the second voltage deviation.
Dependencies are inferred from the claim text.