Method and apparatus with battery state estimation
AssigneesSamsung Electronics Co., Ltd., Samsung SDI Co., Ltd.
InventorsJinho KIM, Tae Won SONG
Life of this patent
Estimating the term…
Abstract
A processor-implemented method with battery state estimation includes: determining a state variation of a battery using a voltage difference between a sensed voltage of the battery and an estimated voltage of the battery that is estimated by an electrochemical model corresponding to the battery; updating an internal state of the electrochemical model based on the determined state variation of the battery; and estimating state information of the battery based on the updated internal state of the electrochemical model.
Claims5
A processor-implemented method with battery state estimation, comprising:
- obtaining sensing data including a sensed voltage of a battery;
- obtaining an estimated voltage of the battery from the sensing data using an electrochemical model corresponding to the battery;
- calculating a first voltage difference between the sensed voltage of the battery and the estimated voltage of the battery;
- selecting a correction method of the electrochemical model based on the first voltage difference;
- correcting an internal state of the electrochemical model or a sensed current to be input to the electrochemical model by applying the selected correction method to the electrochemical model;
- and
- estimating state information of the battery using the electrochemical model to which the correction method is applied.
Dependencies are inferred from the claim text.