公开(公告)号：US20230400518A1

公开(公告)日：2023-12-14

申请号：US18086173

申请日：2022-12-21

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Myeongjae LEE ,  JINHO KIM ,  TAE WON SONG ,  TERRANCE CHRISTOPHER HUANG

IPC: G01R31/367 ,  G01R31/389

CPC classification number: G01R31/367 ,  G01R31/389

Abstract: Methods and apparatuses with battery short circuit detection are provided. A short circuit detecting method includes determining measurement data by measuring a battery for a target timespan including a battery charging timespan or a battery discharging timespan, determining estimation data of the battery for the target timespan using a battery model that simulates the battery to determine the estimation data, determining a resistance error parameter of the battery based on the measurement data and the estimation data, and determining that a battery short circuit condition is satisfied based on a result of comparing the resistance error parameter and a short circuit threshold value.

公开(公告)号：US20230152383A1

公开(公告)日：2023-05-18

申请号：US17950426

申请日：2022-09-22

Applicant: Samsung Electronics Co., Ltd.

Inventor： Sagar BHARATHRAJ ,  Myeongjae LEE ,  Shashishekara Parampalli ADIGA ,  Tae Won SONG ,  Young Hun SUNG

IPC: G01R31/389 ,  H02J7/00 ,  G01R31/396 ,  G01R31/3842

CPC classification number: G01R31/389 ,  H02J7/0047 ,  G01R31/396 ,  G01R31/3842

Abstract: A processor-implemented method of a battery management system includes: determining one or more pieces of sampling data from a plurality of pieces of battery usage data of a battery; determining a first short fatigue metric (SFM) score based on the determined one or more pieces of sampling data; and storing the first SFM score, wherein the one or more pieces of sampling data comprises any one or any combination of any two or more of: a high charging profile associated with the battery; a high discharging profile associated with the battery; a partial charging profile associated with the battery; and a partial discharging profile associated with the battery.

公开(公告)号：US20220200293A1

公开(公告)日：2022-06-23

申请号：US17341561

申请日：2021-06-08

Applicant: Samsung Electronics Co., Ltd

Inventor： Myeongjae LEE ,  Ju Wan LIM ,  Duk Jin OH ,  Jinho KIM ,  Young Hun SUNG ,  Daeryong JUNG

IPC: H02J7/00 ,  G01R31/392 ,  G01R31/367 ,  G01R31/3835

Abstract: A short circuit detection method includes obtaining battery data associated with a state of a battery from a charging cycle of the battery, estimating an error in the battery data using an estimation model, determining a state indicator corresponding to the error in the battery data, and detecting a short circuit of the battery based on a result of comparing the state indicator and a short circuit threshold.

公开(公告)号：US20250124346A1

公开(公告)日：2025-04-17

申请号：US18795490

申请日：2024-08-06

Applicant: Samsung Electronics Co., Ltd. ,  POSTECH RESEARCH AND BUSINESS DEVELOPMENT FOUNDATION

Inventor： Myeongjae LEE ,  Joonhee KIM ,  Soohee HAN ,  Jungsoo KIM ,  Jinho KIM ,  Hangyeol KIM ,  Hyosik MOON ,  Huiyong CHUN

IPC: G06N20/00 ,  G01R31/367 ,  G01R31/389 ,  G01R31/392

Abstract: A method and apparatus for training a short circuit detection model are disclosed. The method includes generating virtual battery models with different battery parameter sets, based on battery data measured by a real battery in a non-short circuit state, by applying a constraint corresponding to a short circuit state to the virtual battery models, generating a virtual test result of the short circuit state, and training a short circuit detection model configured to detect the short circuit state using the virtual test result.

公开(公告)号：US20240097473A1

公开(公告)日：2024-03-21

申请号：US18184325

申请日：2023-03-15

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Youngjae KIM ,  Myeongjae LEE

IPC: H02J7/00 ,  H01M10/42 ,  H01M10/48

CPC classification number: H02J7/00712 ,  H01M10/425 ,  H01M10/482 ,  H02J7/0013 ,  H02J7/0031 ,  H02J7/0063 ,  H01M2010/4271 ,  H01M2010/4278 ,  H02J2207/20

Abstract: A method including determining a first internal short circuit resistance value of a first battery based on the sensor data, determining a first internal short circuit state of the first battery using the first internal short circuit resistance value, and performing a first control process of reducing a current of the first battery, for alleviating a current burden of the first battery, in response to the determined first internal short circuit state being a first state other than a predetermined normal state.

公开(公告)号：US20230194616A1

公开(公告)日：2023-06-22

申请号：US17874794

申请日：2022-07-27

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Myeongjae LEE ,  Jinho KIM ,  Ju Wan LIM ,  Youngjae KIM ,  Young Hun SUNG ,  Tae Won SONG ,  Terrance Christopher HUANG

IPC: G01R31/367 ,  H02J7/00 ,  G01R31/3835 ,  G01R31/52

CPC classification number: G01R31/367 ,  H02J7/0048 ,  H02J7/007182 ,  H02J7/007192 ,  G01R31/3835 ,  G01R31/52

Abstract: A method and apparatus with battery short circuit detection are included. In one general aspect, a processor-implemented method includes, based on battery data measured by a battery and a battery model of the battery, determining a detection parameter value used for detecting a short circuit of the battery and a variation factor value correlated with the detection parameter, using the variation factor to extract a reference value corresponding to the detection parameter value from a reference data set, and determining whether a short circuit of the battery has occurred based on a result of comparing the detection parameter value with the reference value.

公开(公告)号：US20240133971A1

公开(公告)日：2024-04-25

申请号：US18487624

申请日：2023-10-16

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Sivagaminathan BALASUBRAMANIAN ,  Jinho KIM ,  Myeongjae LEE

IPC: G01R31/392 ,  G01R31/36 ,  G01R31/367 ,  G01R31/3835

CPC classification number: G01R31/392 ,  G01R31/3648 ,  G01R31/367 ,  G01R31/3835

Abstract: A method of estimating a short circuit resistance in a battery using open cell voltage (OCV) includes: determining a rest period OCV for a rest period of the battery; determining a no-short OCV of a no-short condition based on a predetermined parameter, a first state-of-health (SoH) parameter, and a first temperature of the battery; determining that an internal short is present in the battery based on the no-short OCV and the rest period OCV, and based thereon extending the rest period of the battery; determining an extended OCV of the battery for the extended rest period based on the predetermined parameter, a second SoH parameter, and a second temperature of the battery; and estimating the short circuit resistance based on the no-short OCV, the predetermined parameter, and the extended OCV.

公开(公告)号：US20240111921A1

公开(公告)日：2024-04-04

申请号：US18331363

申请日：2023-08-28

Applicant: SAMSUNG ELECTRONICS CO., LTD. ,  POSTECH Research and Business Development Foundation

Inventor： Jungsoo KIM ,  Joonhee KIM ,  Jinho KIM ,  Myeongjae LEE ,  Huiyong CHUN ,  Soohee HAN

IPC: G06F30/20

CPC classification number: G06F30/20

Abstract: A processor-implemented method includes performing first parameter optimization of a battery model through a first predetermined optimization technique; switching, based on a count accumulated while performing the first parameter optimization indicating that a switching criterion has been met, from the first optimization technique to a second predetermined optimization technique; performing second parameter optimization of the battery model through the second predetermined optimization technique; and determining a final parameter combination as an optimized parameter of the battery model, in response to an occurrence of an optimization end event during the performance of the second parameter optimization.

公开(公告)号：US20220381830A1

公开(公告)日：2022-12-01

申请号：US17510670

申请日：2021-10-26

Applicant: Samsung Electronics Co., Ltd.

Inventor： Ju Wan LIM ,  Daeryong JUNG ,  Jinho KIM ,  Young Hun SUNG ,  Duk Jin OH ,  Myeongjae LEE

IPC: G01R31/367 ,  G01R31/3828 ,  H02J7/00

Abstract: To generate a charging path for a battery, a method includes generating simulation data for charging currents based on a battery model indicating an internal state of a battery, generating an initial look-up table (LUT) for the charging currents and preset battery voltage limits based on the simulation data, the initial LUT representing initial charging limit conditions of the battery for stages corresponding to the charging currents, generating a modified LUT by adjusting at least one of the initial charging limit conditions of the initial LUT, in response to the initial LUT failing to satisfy a threshold, determining a final LUT based on the modified LUT, in response to the modified LUT satisfying the threshold, and generating a charging path for the battery based on the final LUT.