公开(公告)号：US11733306B2

公开(公告)日：2023-08-22

申请号：US17328246

申请日：2021-05-24

Applicant: Samsung Electronics Co., Ltd.

Inventor： Jinho Kim ,  Tae Won Song ,  Young Hun Sung

IPC: G01R31/367 ,  G01R31/3835 ,  H02J7/00

CPC classification number: G01R31/367 ,  G01R31/3835 ,  H02J7/0048

Abstract: A processor-implemented method with battery state estimation includes estimating a current state of charge (SOC) of a target battery by correcting a first electrochemical model corresponding to the target battery using a first voltage difference between a measured voltage of the target battery and an estimated voltage of the target battery that is estimated by the first electrochemical model, estimating an end SOC of the target battery by correcting a second electrochemical model using a second voltage difference between an estimated voltage of a virtual battery that is estimated by the second electrochemical model and a preset voltage, and estimating a relative SOC (RSOC) of the target battery based on the current SOC and the end SOC of the target battery, wherein the second electrochemical model is based on the virtual battery corresponding to the target battery being discharged to reach the preset voltage.

公开(公告)号：US11552494B2

公开(公告)日：2023-01-10

申请号：US17134586

申请日：2020-12-28

Applicant: Samsung Electronics Co., Ltd.

Inventor： Jinho Kim ,  Tae Won Song ,  Ju Wan Lim ,  Young Hun Sung ,  Hongsoo Choi

IPC: H02J7/00 ,  H01M10/42 ,  H01M10/48 ,  H01M10/44 ,  G01R31/382

Abstract: A battery charging control method and apparatus is disclosed. The battery charging control method includes inputting a preset magnitude of a current to a battery during a preset period of time, identifying a diffusion characteristic of a material in the battery, and determining whether to change the magnitude of the current to be input to the battery based on the identified diffusion characteristic of the material, in which the diffusion characteristic may be determined based on a distribution of the material in one or more of a cathode of the battery, an anode of the battery, and an electrolyte of the battery in response to the input of the current in the battery.

公开(公告)号：US11249138B2

公开(公告)日：2022-02-15

申请号：US16858902

申请日：2020-04-27

Applicant: Samsung Electronics Co., Ltd.

Inventor： Hyo Sun Hwang ,  Jin Ho Kim ,  Sang Do Park ,  Tae Won Song

IPC: G01R31/367 ,  G01R31/382 ,  G01R31/392

Abstract: Provided are battery management apparatuses and methods. The battery management apparatus includes a sensitivity determiner configured to determine sensitivity of a battery state based on sensed battery information and previous battery state information, and an execution parameter adjuster configured to adjust a parameter for estimating the battery state based on the determined sensitivity of the battery state.

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：US10310021B2

公开(公告)日：2019-06-04

申请号：US15373017

申请日：2016-12-08

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Piyush Madhukarrao Tagade ,  Krishnan Seethalakshmy Hariharan ,  Tae Won Song

IPC: G01R35/00 ,  H01M10/48 ,  G01R31/367

Abstract: A method includes estimating an average concentration of ions in electrodes of a battery and estimating a state-of-charge (SOC) of the battery by Coulomb counting, correcting the ion concentration based on a difference in predicted and measured cell voltages, and correcting the Coulomb counting SOC based on a relation between SOC estimated by Coulomb counting and the average concentration, and the difference in the predicted and measured cell voltages.

公开(公告)号：US10302704B2

公开(公告)日：2019-05-28

申请号：US15235663

申请日：2016-08-12

Applicant: Samsung Electronics Co., Ltd.

Inventor： Krishnan S Hariharan ,  Priya Gambhire ,  Tae Won Song

IPC: G01R31/36 ,  H01M10/48 ,  H01M10/42

Abstract: A method and apparatus for predicting a state of charge (SoC) of a battery includes estimating an open circuit voltage of the battery based on an open current voltage model, where the open current voltage model is defined by internal parameters that are derived from a battery voltage of the battery, a load current of the battery for a load, or a first SoC of the battery, or any combination thereof; and predicting a second SoC based on the estimated open current voltage.

公开(公告)号：US12228615B2

公开(公告)日：2025-02-18

申请号：US17720971

申请日：2022-04-14

Applicant: Samsung Electronics Co., Ltd.

Inventor： Jinho Kim ,  Tae Won Song ,  Young Hun Sung

IPC: G01R31/3835 ,  G01R31/392 ,  H01M10/48

Abstract: Disclosed are an electronic device, including a memory configured to store parameters of an electrochemical model corresponding to a battery, a sensor configured to measure a voltage of the battery, and a processor configured to determine a first cumulative state of charge (SOC) correction amount at a partially discharged point in time at which a SOC of the battery is corrected by a corrector for reducing a voltage difference between an estimated voltage of the electrochemical model and the measured voltage of the battery, estimate a second cumulative SOC correction amount at a fully discharged point in time based on the first cumulative SOC correction amount and a SOC correction amount prediction curve, and update an aging parameter of the electrochemical model based on the second cumulative SOC correction amount.

公开(公告)号：US11982714B2

公开(公告)日：2024-05-14

申请号：US17683483

申请日：2022-03-01

Applicant: SAMSUNG ELECTRONICS CO., LTD. ,  SAMSUNG SDI CO., LTD.

Inventor： Jinho Kim ,  Tae Won Song

IPC: G01R31/367 ,  G01R31/36 ,  G01R31/3842 ,  G01R31/387 ,  G01R31/392

CPC classification number: G01R31/367 ,  G01R31/3648 ,  G01R31/3842 ,  G01R31/392 ,  G01R31/387

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.

公开(公告)号：US11959968B2

公开(公告)日：2024-04-16

申请号：US17463841

申请日：2021-09-01

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Sagar Bharathraj ,  Anshul Kaushik ,  Rajkumar Subhash Patil ,  Shashishekara Parampalli Adiga ,  Tae Won Song

IPC: G01R31/367 ,  B60L58/12 ,  B60L58/16 ,  G01R31/371 ,  G01R31/382 ,  G01R31/392

CPC classification number: G01R31/367 ,  B60L58/12 ,  B60L58/16 ,  G01R31/371 ,  G01R31/382 ,  G01R31/392

Abstract: A battery management method and system are provided. The method includes acquiring one or more parameters associated with the battery. The one or more parameters includes a current level, a voltage level, a State of Charge (SOC), and a temperature. The method includes determining a load and energy estimation model based on the one or more acquired parameters. The method includes identifying a power limit of the battery based on the load and energy estimation model. The method includes determining a power margin of the battery at a first usage time interval based on the identified power limit. The method includes performing one or more actions, based on a determination that the power margin of the battery exceeds a predefined threshold level.

公开(公告)号：US11828807B2

公开(公告)日：2023-11-28

申请号：US17328246

申请日：2021-05-24

Applicant: Samsung Electronics Co., Ltd.

Inventor： Jinho Kim ,  Tae Won Song ,  Young Hun Sung

IPC: G01R31/367 ,  G01R31/3835 ,  H02J7/00

CPC classification number: G01R31/367 ,  G01R31/3835 ,  H02J7/0048

Abstract: A processor-implemented method with battery state estimation includes estimating a current state of charge (SOC) of a target battery by correcting a first electrochemical model corresponding to the target battery using a first voltage difference between a measured voltage of the target battery and an estimated voltage of the target battery that is estimated by the first electrochemical model, estimating an end SOC of the target battery by correcting a second electrochemical model using a second voltage difference between an estimated voltage of a virtual battery that is estimated by the second electrochemical model and a preset voltage, and estimating a relative SOC (RSOC) of the target battery based on the current SOC and the end SOC of the target battery, wherein the second electrochemical model is based on the virtual battery corresponding to the target battery being discharged to reach the preset voltage.