公开(公告)号：US20240361395A1

公开(公告)日：2024-10-31

申请号：US18347293

申请日：2023-07-05

申请人： Samsung Electronics Co., Ltd.

发明人： Hyuk Rae PARK ,  Sang Bin MOON ,  Min Hwan SEO ,  Sang Beom KIM

IPC分类号： G01R31/388 ,  G01R31/36 ,  H01M10/48 ,  H02J7/00

CPC分类号： G01R31/388 ,  G01R31/3646 ,  H01M10/48 ,  H02J7/0048

摘要： An electronic device may comprise a battery configured to supply power, and processing circuitry configured to, calculate a state of charge (SOC) calculated value of the battery based on sensed battery condition information of the battery, generate an SOC reported value, which fluctuates between a desired first value and a desired second value, wherein the desired second value is lower than the desired first value, based on at least one of the SOC calculated value, a charging status of the battery, a fully charged voltage of the battery, and a fully discharged voltage of the battery, and control the electronic device based on the SOC reported value.

公开(公告)号：US20240353497A1

公开(公告)日：2024-10-24

申请号：US18291987

申请日：2022-09-30

申请人： LG Energy Solution, Ltd.

发明人： Yeo Kyung Yoon ,  Jeong In Yu ,  Yong Jun Kim

IPC分类号： G01R31/389 ,  G01R31/367 ,  G01R31/388 ,  H01M10/44

CPC分类号： G01R31/389 ,  G01R31/367 ,  G01R31/388 ,  H01M10/446

摘要： A charge protocol inspection apparatus including an information obtaining unit is configured to obtain information about a charge protocol of a battery cell, an open circuit voltage (OCV) corresponding to a state of charge (SoC) of the battery cell, and a reference internal resistance of the battery cell, calculate an internal resistance of the battery cell during charge based on the information about the charge protocol and the OCV corresponding to the SoC of the battery cell, and compare the reference internal resistance of the battery cell with the internal resistance of the battery cell during charge.

公开(公告)号：US12117497B2

公开(公告)日：2024-10-15

申请号：US17264440

申请日：2019-03-18

申请人： Vehicle Energy Japan Inc.

发明人： Yosuke Wada ,  Keiichiro Ohkawa

IPC分类号： G01R31/3842 ,  G01R31/367 ,  G01R31/388 ,  G01R31/396 ,  H01M10/48 ,  H02J7/00

CPC分类号： G01R31/3842 ,  G01R31/367 ,  G01R31/388 ,  G01R31/396 ,  H01M10/48 ,  H02J7/0049 ,  H02J2310/48

摘要： An apparatus coupled to an assembled battery with a plurality of serially-connected cells and for setting any one of the plurality of cells as a target cell and estimating a state of charge of the target cell includes: a cell voltage acquisition unit that acquires a measurement result of a closed circuit voltage of the target cell; a reference cell information acquisition unit that sets a reference cell with respect to the plurality of cells and acquires a closed circuit voltage and an open circuit voltage of the reference cell and a reference SOC value representing a state of charge of the reference cell; a temporary SOC operation unit that finds a temporary SOC value representing a temporary state of charge of the target cell on the basis of the closed circuit voltage of the target cell and the closed circuit voltage and the open circuit voltage of the reference cell; and an SOC operation unit that finds an SOC value representing the state of charge of the target cell by using a result of smoothing processing executed on a difference between the temporary SOC value and the reference SOC value.

公开(公告)号：US20240288505A1

公开(公告)日：2024-08-29

申请号：US18570650

申请日：2022-06-01

申请人： Autel Digital Power Co., Ltd.

发明人： Songsong QU ,  Guangwen FENG

IPC分类号： G01R31/392 ,  B60L53/62 ,  B60L53/65 ,  B60L53/66 ,  G01R31/388

CPC分类号： G01R31/392 ,  B60L53/62 ,  B60L53/65 ,  B60L53/66 ,  G01R31/388

摘要： A battery health state calculation method includes: acquiring vehicle information of a vehicle to be charged in response to a charging start operation; determining a target battery capacity of the vehicle to be charged according to the vehicle information; acquiring a charging parameter of the charging device and SOC information of the vehicle to be charged in a target charging period in response to a charging end operation; the target charging period including a time period between the charging start operation and the charging end operation; and determining a battery health state of the vehicle to be charged according to the charging parameter, the SOC information, and the target battery capacity. Through the above manner, the embodiments of the present invention improve the determination efficiency of the battery health state.

公开(公告)号：US20240272231A1

公开(公告)日：2024-08-15

申请号：US18437475

申请日：2024-02-09

申请人： STMicroelectronics (Alps) SAS

发明人： Daniel Ladret

IPC分类号： G01R31/388 ,  G01R31/378 ,  G01R31/389

CPC分类号： G01R31/388 ,  G01R31/378 ,  G01R31/389

摘要： In one embodiment, a method can be used for measuring an effective capacity of a battery. A first measurement is performed during a phenomenon of relaxation of the battery. The first measurement measures a first voltage delivered by the in-use battery from a duration. The duration is the difference between a first initial time and a second time that is defined as the time when a first line reaches a second voltage delivered by the battery when the battery is relaxed, the first line being tangent to the origin of a curve corresponding to the evolution over time of a voltage delivered by the battery during the phenomenon of relaxation.

公开(公告)号：US20240262253A1

公开(公告)日：2024-08-08

申请号：US18249493

申请日：2021-10-12

申请人： SUBARU CORPORATION

发明人： Michita YANAGITA

IPC分类号： B60L58/40 ,  B60L15/20 ,  B60L50/75 ,  G01R31/00 ,  G01R31/388 ,  G01R31/389 ,  H01M8/04537 ,  H01M8/04858 ,  H01M16/00 ,  H02J7/00

CPC分类号： B60L58/40 ,  B60L15/20 ,  B60L50/75 ,  G01R31/007 ,  G01R31/388 ,  G01R31/389 ,  H01M8/04544 ,  H01M8/04574 ,  H01M8/04634 ,  H01M8/04925 ,  H01M16/006 ,  H02J7/0048 ,  H02J7/00712 ,  H01M2220/20 ,  H01M2250/20 ,  H01M2250/402

摘要： An electric power control apparatus is for a fuel cell system including an impedance measurement unit that measures an impedance of the fuel cell based on a current and a voltage measured when alternating-current electric power is superimposed on output electric power of the fuel cell. A processor of the electric power control apparatus: estimates a remaining capacity of the electric power storage device after execution of a process of measuring the impedance; performs charging and discharging of the electric power storage device before start of the process of measuring the impedance, to make the estimated remaining capacity fall within a predetermined range from a lower limit value to an upper limit value; and controls electric power generation of the fuel cell to make a generated current of the fuel cell constant, during the execution of the process of measuring the impedance.

公开(公告)号：US20240248145A1

公开(公告)日：2024-07-25

申请号：US18426862

申请日：2024-01-30

申请人： DUKOSI LIMITED

发明人： Joel SYLVESTER ,  Timothy CRYMBLE ,  Grant STONE ,  Gregory CAMERON ,  Josh Robert LEWORTHY

IPC分类号： G01R31/388 ,  G01R31/374 ,  G01R31/385 ,  G01R31/396 ,  H01M10/0525 ,  H01M10/42 ,  H01M10/44 ,  H01M10/48

CPC分类号： G01R31/388 ,  G01R31/374 ,  G01R31/3865 ,  G01R31/396 ,  H01M10/0525 ,  H01M10/4228 ,  H01M10/446 ,  H01M10/482 ,  H01M10/486

摘要： The present invention relates to a maturation process for at least one electric battery cell 32. The maturation process comprises charging the at least one electric battery cell 32 and subjecting the at least one electric battery cell to a maturation period of at least one day wherein no electrical load other than a measurement apparatus 30 is connected to the at least one electric battery cell. The maturation process also comprises taking at least one measurement of the open circuit voltage of the at least one electric battery cell 32 with the measurement apparatus 30 between the start and the end of the maturation period. The maturation process further comprises determining the integrity of the at least one electric battery cell in dependence on the at least one measurement.

公开(公告)号：US12038483B2

公开(公告)日：2024-07-16

申请号：US17284618

申请日：2019-09-25

申请人： Vehicle Energy Japan Inc.

发明人： Miyuki Akatsu ,  Keiichiro Ohkawa

IPC分类号： G01R31/3842 ,  G01R31/36 ,  G01R31/3828 ,  G01R31/388 ,  H01M10/48 ,  H02J7/00

CPC分类号： G01R31/3842 ,  G01R31/3648 ,  G01R31/388 ,  H01M10/48 ,  H01M10/482 ,  H02J7/0013 ,  G01R31/3828

摘要： A battery control unit has an SOCv operation unit which calculates a state of charge SOCv based on voltage of a battery, a ΔSOCi operation unit which calculates an amount of change ΔSOCi of the state of charge based on current value of the battery, a weight operation unit which calculates a weight W, and an SOCc operation unit which calculates a final SOC (SOCc) based on the SOCv, the ΔSOCi and the weight W. Terms forming an operational expression of the SOCc are retained, by using a determination threshold, as a sum SOCc_Big of terms of a large value group and a sum SOCc_Small of terms of a small value group, and used in calculating the SOCc of a subsequent operation period. By using the SOCc_Big and the SOCc_Small, it is possible to prevent the accumulation of errors caused by information loss that occurred when repeatedly operating the SOCc.

公开(公告)号：US20240235214A9

公开(公告)日：2024-07-11

申请号：US18448207

申请日：2023-08-11

申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA

发明人： Kohei TAKAHASHI

IPC分类号： H02J7/00 ,  B60L58/22 ,  G01R31/388

CPC分类号： H02J7/0016 ,  B60L58/22 ,  G01R31/388 ,  H02J7/0049

摘要： The control unit includes: when an absolute value of a difference between a full charge capacity of a 1 cell and a full charge capacity of a 2 cell is equal to or larger than a 1 threshold value, equalization is performed so that an absolute value of a difference between a charge rate of a 1 cell and a charge rate of a 2 cell at the time of full charge is less than a 2 threshold value, and when an absolute value of a difference between a voltage of a 1 cell and a voltage of a 2 cell is equal to or larger than a 3 threshold value, equalization is performed so that an absolute value of a difference between a voltage of a 1 cell and a voltage of a 2 cell becomes less than a 3 threshold value.

公开(公告)号：US12025674B2

公开(公告)日：2024-07-02

申请号：US17378305

申请日：2021-07-16

申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA

发明人： Aiko Nagano ,  Mamoru Mizutani

IPC分类号： G01R31/388 ,  G01R31/389 ,  H01M10/0525 ,  H01M10/48

CPC分类号： G01R31/388 ,  G01R31/389 ,  H01M10/486 ,  H01M10/0525

摘要： A durability evaluation method of a secondary battery includes a durability step of continuing to apply an alternating current voltage of a durability frequency to a first secondary battery for evaluation over a durability test period, and an evaluation step of evaluating durability of an associated battery reaction associated with the durability frequency from among battery reactions of the first secondary battery. A temperature and a state of charge of the first secondary battery are adjusted to a first temperature and a first state of charge, respectively.