公开(公告)号：US11543460B2

公开(公告)日：2023-01-03

申请号：US17018329

申请日：2020-09-11

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Samarth Agarwal ,  Subramanian Swernath Brahmadathan ,  Krishnan S Hariharan ,  Seongho Han ,  Anshul Kaushik ,  Rajkumar Subhash Patil

IPC: G01R31/392 ,  G01R31/36 ,  B60L3/00 ,  B60L58/16 ,  G01R31/371

Abstract: Provided are a battery state measuring method and battery management system, which predict a time point when charging capacity of a battery is to be relatively abruptly reduced. The battery state measuring method includes: monitoring a change of at least one precursor related to the charging capacity of the battery with respect to a number of charging cycles undergone by the battery; and predicting that an abrupt reduction in the charging capacity of the battery is imminent when the change of the at least one precursor follows at least one pre-configured pattern of the battery that has undergone a critical number of charging cycles.

公开(公告)号：US12044745B2

公开(公告)日：2024-07-23

申请号：US17846805

申请日：2022-06-22

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Deekshith Pathayappilly Krishnan ,  Krishnan S Hariharan ,  Samarth Agarwal ,  Subramanian Swernath Brahmadathan ,  Seongho Han

IPC: G01R31/392 ,  H02J7/00

CPC classification number: G01R31/392 ,  H02J7/0048 ,  H02J7/005

Abstract: A method for managing a battery includes obtaining a first plurality of battery parameters with respect to a first charging or discharging cycle of the battery; obtaining a second plurality of battery parameters with respect to a second charging or discharging cycle of the battery; determining a relative entropy by comparing the first plurality of battery parameters measured during the first charging or discharging cycle and the second plurality of battery parameters measured during the second charging or discharging cycle; and estimating a relative entropy value to predict a number of cycles after which a battery capacity is predicted to drop.

公开(公告)号：US20230140727A1

公开(公告)日：2023-05-04

申请号：US17968348

申请日：2022-10-18

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Subramanian Brahmadathan Swernath ,  Krishnan Seethalakshmy Hariharan ,  Samarth Agarwal ,  Seongho Han

IPC: G01R31/392 ,  G01R31/367 ,  G01R31/385 ,  G01R31/396

Abstract: An electronic device, including a memory; a processor; and a remaining useful life (RUL) prediction controller configured to: identify at least one parameter corresponding to at least one of a physical composition and a chemical composition of a plurality of used batteries during at least one of a charging and a discharging of the plurality of used batteries; determine a pattern of variations in at least one of a voltage, a current, a temperature, and a resistance during every cycle of the charging and the discharging of the plurality of used batteries until a failure; generate an artificial intelligence (AI) model which is trained based on a correlation between the determined pattern of variations and the at least one of the physical composition and the chemical composition; and evaluate a RUL of the plurality of used batteries using the AI model.