公开(公告)号：US10761141B2

公开(公告)日：2020-09-01

申请号：US15712389

申请日：2017-09-22

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Tae Won Song ,  Ju Wan Lim ,  Sungick Kim ,  Jinho Kim

IPC: G01R31/3828 ,  G01R31/3835 ,  G01R31/367

Abstract: Provided is a method and apparatus for estimating a battery state. A method of estimating a battery state that includes determining whether a previous state to a rest state of a battery is a charging state or a discharging state; selecting a current profile comprising one or both of a charging pulse and a discharging pulse based on the previous state of the battery; stabilizing an open circuit voltage (OCV) of the battery by applying the current profile to the battery; and measuring the stabilized OCV.

公开(公告)号：US10718815B2

公开(公告)日：2020-07-21

申请号：US15637269

申请日：2017-06-29

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Jinho Kim ,  Tae Won Song ,  Sungick Kim

IPC: H02J7/00 ,  G01R31/3842 ,  G01R31/367 ,  G01R31/392 ,  G01R31/36 ,  H01M10/44 ,  H01M10/48

Abstract: A method of estimating a state of a battery is disclosed. The method includes correcting electrical physical quantity information of the battery at a current time period using a correction value determined based on a voltage error of the battery from a previous time period, and determining state information of the battery based on the corrected electrical physical quantity information.

公开(公告)号：US11054474B2

公开(公告)日：2021-07-06

申请号：US15718084

申请日：2017-09-28

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Jinho Kim ,  SangDo Park ,  Tae Won Song ,  Sungick Kim

IPC: G01R31/36 ,  G01R31/367 ,  G01R31/392 ,  B60L58/12

Abstract: According to one aspect, a method to estimate a state of a battery includes receiving physical quantity information about a sensed physical quantity of a battery, obtaining estimated information of the battery from a battery model based on the received physical quantity information. The battery model includes a training model configured to determine internal battery information comprising potential information of an internal material of the battery based on the physical quantity information and a mathematical function. The method further includes calculating an ion concentration in the battery using the mathematical function based on the internal battery information to determine the estimated information of the battery.