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公开(公告)号：EP4231026A1
公开(公告)日：2023-08-23
申请号：EP22736799.2
申请日：2022-01-04
发明人： LIM, Bo Mi
IPC分类号： G01R31/367 , G01R31/36 , G01R31/392 , G01R31/382 , G01R31/374 , H01M10/48 , H01M10/42
摘要： A battery management apparatus can include a measuring unit configured to measure a voltage and a current of a battery cell, an analyzing unit configured to analyze correlations between a plurality of extraction methods for extracting a feature of the battery cell and an objective variable, and a determining unit configured to select at least one extraction method from among the plurality of extraction methods based on the correlations between the plurality of extraction methods and the objective variable.
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公开(公告)号：EP4137829A1
公开(公告)日：2023-02-22
申请号：EP21845332.2
申请日：2021-07-23
发明人： LIM, Bo Mi
IPC分类号： G01R31/382 , G01R31/36 , G01R19/165 , G01R31/367 , G01R31/396
摘要： The present invention provides a battery diagnosis device for diagnosing a type of error occurring in a battery cell based on the voltage of the battery cell. A battery diagnosis device includes a voltage measurement circuit, a data processing circuit and a diagnosis circuit. The voltage measurement circuit periodically measures the voltage at both ends of the battery cell in the rest section. The data processing circuit derives a statistical value indicating the state of the battery cell based on difference values between the voltage values measured by the voltage measurement circuit and fitting values calculated based on the measured voltage values. The diagnosis circuit determines whether an error has occurred in the battery cell based on statistical values in a plurality of rest sections, and determines whether the type of error is a first type in which the battery cell is unstable, a second type in which the voltage of the battery cell temporarily rises, or a third type in which the voltage of the battery cell temporarily drops based on a cumulative statistical value in which an absolute values of the statistical values are accumulated and the statistical value in the rest section. The plurality of rest sections include a rest section and one or more rest sections before the rest section.
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公开(公告)号：EP4206708A1
公开(公告)日：2023-07-05
申请号：EP21911210.9
申请日：2021-10-19
发明人： LIM, Bo Mi
IPC分类号： G01R31/367 , G01R31/36 , G01R31/382 , H01M10/42
摘要： Provided is a battery management apparatus including a calculating unit configured to calculate a differential value of a capacity of a battery cell with respect to a voltage of the battery cell, an analyzing unit configured to perform statistical analysis on the differential value, and a determining unit configured to determine the capacity of the battery cell based on the statistical analysis.
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公开(公告)号：EP4040174A1
公开(公告)日：2022-08-10
申请号：EP21803824.8
申请日：2021-05-12
发明人： KIM, Young Jin , JOE, Won Tae , LEE, Bom Jin , LIM, Bo Mi
IPC分类号： G01R31/367 , G01R31/36 , G01R31/3835 , G01R31/396 , H01M10/48 , H01M10/42
摘要： According to the present invention, there is provided an apparatus for diagnosing whether or not an error has occurred in battery cells by measuring a voltage of each of the battery cells. The present invention includes a voltage measurement circuit, a data processing circuit, and a diagnosis circuit. The voltage measurement circuit may measure a voltage of a battery cell. The data processing circuit calculates a target statistical value indicating a state of the battery cell based on a voltage measured by the voltage measurement circuit, and calculates a cumulative statistical value by accumulating target statistical values of the battery cell during an analysis period. The diagnosis circuit determines whether or not an error has occurred in the battery cell through a cumulative determination operation of comparing the cumulative statistical value with a cumulative reference value, and counts the number of times of cumulative error when it is determined that the error has occurred in the battery cell in the cumulative determination operation.
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公开(公告)号：EP4007040A1
公开(公告)日：2022-06-01
申请号：EP20857233.9
申请日：2020-07-01
发明人： LIM, Bo Mi
IPC分类号： H01M10/44 , H01M10/42 , G01R31/396 , G01R31/387 , G01R31/36
摘要： The present invention relates to a method and a system for stabilizing cells of an energy storage system (ESS) which enables uniform charge/discharge without the generation of SOC deviation among cells by charging/discharging a plurality of cells included in a battery rack differently by module unit to minimize the deterioration and impact caused by intermittent charge/discharge, for a plurality of cells included in the energy storage system (ESS).
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公开(公告)号：EP4170367A1
公开(公告)日：2023-04-26
申请号：EP21856159.5
申请日：2021-08-09
发明人： LIM, Bo Mi
IPC分类号： G01R31/367 , G01R31/36 , G01R31/382 , G01R31/396 , H01M10/48
摘要： Provided is a battery capacity estimation apparatus including a voltage measuring unit measuring a voltage of a battery cell, a filtering unit determining voltage data as first data when a logging pattern of the voltage data of the battery cell deviates from a preset reference range, a statistical analyzing unit determining second data through statistical analysis on the voltage data of the battery cell, and a capacity estimating unit estimating a capacity by applying data, classified by the filtering unit or the statistical analyzing unit for a battery cell that is a measurement target, to capacity estimation models generated separately for the first data and the second data.
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公开(公告)号：EP4235198A1
公开(公告)日：2023-08-30
申请号：EP22736801.6
申请日：2022-01-04
发明人： LIM, Bo Mi , CHOI, Yo Hwan , JOE, Won Tae , LEE, Bom Jin
IPC分类号： G01R31/367 , G01R31/392 , G01R31/382
摘要： Provided is a battery management apparatus including a measuring unit configured to measure a current and a voltage of battery cells, an analyzing unit configured to classify the battery cells into a plurality of classes based on a feature obtained from the current and the voltage of the battery cells and a degradation behavior of each of the battery cells, and a determining unit configured to determine a lifespan of the battery cell in a preset manner for each of the plurality of classes.
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公开(公告)号：EP4170560A1
公开(公告)日：2023-04-26
申请号：EP21911330.5
申请日：2021-12-08
发明人： LIM, Bo Mi
摘要： Provided is a machine learning training apparatus including a data managing unit configured to collect new data, a data analyzing unit configured to extract a feature of data used for generation of a machine learning model and a feature of the new data, and a determining unit determining whether a number of pieces of the new data is less than a reference number and determining whether to apply the new data to the machine learning model using different methods according to the number of pieces of the new data.
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公开(公告)号：EP4155744A1
公开(公告)日：2023-03-29
申请号：EP21856155.3
申请日：2021-08-09
发明人： LIM, Bo Mi
IPC分类号： G01R31/367 , G01R31/36 , G01R31/382 , G01R31/396 , G01R31/392 , G08B21/18
摘要： Provided is a battery abnormality diagnosis apparatus including a voltage obtaining unit obtaining a voltage of a battery cell, an analyzing unit calculating estimation information for estimating the voltage of the battery by analyzing the voltage of the battery cell, and a diagnosing unit diagnosing abnormality of the battery cell by analyzing the estimation information.
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公开(公告)号：EP4152023A1
公开(公告)日：2023-03-22
申请号：EP21849369.0
申请日：2021-07-23
发明人： LIM, Bo Mi
IPC分类号： G01R31/3835 , G01R19/165 , G01R21/06 , G01R19/00 , G01R31/36 , G01R31/396 , G01R31/367 , H01M10/48
摘要： A battery diagnosis device according to an embodiment of the present invention includes a voltage measurement unit configured to measure a voltage of a battery cell, a fitting value calculation unit configured to calculate a fitting voltage of the battery cell in a rest section after charging and discharging of the battery cell, and a diagnosis unit configured to diagnose abnormality of the battery cell by comparing the measured voltage measured by the voltage measurement unit and the fitting voltage calculated by the fitting value calculation unit, with respect to the rest section of the battery cell.
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