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公开(公告)号：US20210239766A1
公开(公告)日：2021-08-05
申请号：US17165100
申请日：2021-02-02
IPC分类号： G01R31/392 , G01R31/389 , G01R31/371 , G01R31/367 , H02J7/00
摘要： The present disclosure relates to a method and apparatus for accurately detecting an operating status of a battery in a battery system, where the method includes determining a charging profile of a battery in a battery system, identifying a constant voltage and a corresponding constant current in a charging cycle of the charging profile, estimating at least one of a decay constant or an internal resistance associated with the battery, using at least one of the constant voltage or the constant current, comparing the decay constant with a first threshold value or comparing the internal resistance with a second threshold value, and detecting an operating status of the battery to be faulty or healthy, based on the comparison.
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2.发明申请公开(公告)号：US20210325470A1
公开(公告)日：2021-10-21
申请号：US17217364
申请日：2021-03-30
IPC分类号： G01R31/36 , H01M10/48 , G01R31/387 , H01M10/44 , G01R31/392 , G01N27/22
摘要： A battery management system (BMS) and method for determining an active material content in an electrode includes determining a first peak in an inverse-differential capacity analysis curve of a the battery, determining a second peak in an incremental capacity analysis (ICA) curve associated with the at least one electrode, mapping the first peak of the inverse-differential capacity analysis curve to the second peak of the ICA curve, determining an active material content in the at least one electrode of the battery based on the mapping, and optimizing a performance of the battery based on the active material content in the at least one electrode.
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公开(公告)号：US20220074995A1
公开(公告)日：2022-03-10
申请号：US17463841
申请日：2021-09-01
发明人： Sagar BHARATHRAJ , Anshul KAUSHIK , Rajkumar Subhash PATIL , Shashishekara Parampalli ADIGA , Tae Won SONG
IPC分类号： G01R31/367 , B60L58/16 , B60L58/12 , G01R31/371 , G01R31/382 , G01R31/392
摘要： 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.
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4.发明申请公开(公告)号：US20210359317A1
公开(公告)日：2021-11-18
申请号：US17318169
申请日：2021-05-12
发明人： Anshul KAUSHIK , Atanu TALUKDAR , Rajkumar Subhash PATIL , Shashishekara Parampalli ADIGA , Daebong JUNG
IPC分类号： H01M8/04537 , H01M8/0662
摘要： A method for estimating a plurality of parameters pertaining to an electrochemical model of a cell may include: obtaining, by a device, an Electrochemical Impedance Spectroscopy (EIS) spectrum and a Constant Current-Constant Voltage (CC-CV) charge-Constant Current (CC) discharge response of the cell; extracting, by the device, a plurality of features from the EIS spectrum and a plurality of features from the CC-CV charge-CC discharge response of the cell; and estimating, by the device, the plurality of parameters based on at least one of the plurality of features of the EIS spectrum and at least one of the plurality of features of the CC-CV charge-CC discharge response of the cell.
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公开(公告)号：US20210242698A1
公开(公告)日：2021-08-05
申请号：US17085977
申请日：2020-10-30
发明人： Anshul KAUSHIK , Aravinda Reddy MANDLI , Ankit YADU , Krishnan Seethalakshmy HARIHARAN , Piyush TAGADE , Rajkumar Subhash PATIL , Jeonghoon JO
IPC分类号： H02J7/00
摘要： Embodiments herein provide a method for real time adaptive charging of a battery. The method includes receiving at least one battery parameter. Further, the method includes determining a present battery condition. Further, the method includes correcting the at least one battery parameter based on the present battery condition. Further, the method includes determining a real time optimal current used for charging the battery based on the at least one corrected battery parameter. Further, the method includes charging the battery based on the determined real time optimal current, where a battery management system configures a charger integrated circuit to charge the battery. Further, the method includes updating and storing the at least one battery parameter in real time in a memory after charging the battery at the optimal current.
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公开(公告)号：US20210080509A1
公开(公告)日：2021-03-18
申请号：US17018329
申请日：2020-09-11
发明人： Samarth AGARWAL , Subramanian Swernath BRAHMADATHAN , Krishnan S HARIHARAN , Seongho HAN , Anshul KAUSHIK , Rajkumar Subhash PATIL
IPC分类号： G01R31/392 , G01R31/36 , G01R31/371 , B60L58/16 , B60L3/00
摘要： 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.
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