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公开(公告)号：US12130333B2
公开(公告)日：2024-10-29
申请号：US17822092
申请日：2022-08-24
IPC分类号： G01R31/385 , G01R31/36 , G01R31/396 , H01M10/42 , H01M10/48
CPC分类号： G01R31/385 , G01R31/3648 , G01R31/396 , H01M10/4285 , H01M10/484 , H01M2220/20
摘要： Testing of a battery module can be conducted using monitoring electronics attached to the battery module. Stimulus can be applied to the battery module and removed. After removal of the stimulus, the monitoring electronics can collect signals from the monitoring electronics reflecting parameters of the battery module as it relaxes back to a non-stimulated state. The stimulus can be provided by test equipment or by components of a system in which the battery module, having attached monitoring electronics, is implemented. The monitoring electronics attached to the battery module can provide autonomous recording of signals associated with the battery module that can provide data regarding the status of the battery module or one or more batteries contained in the battery module.
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公开(公告)号：US20240333005A1
公开(公告)日：2024-10-03
申请号：US18604517
申请日：2024-03-14
申请人： ABLIC Inc.
发明人： Shinya FUKUCHI , Hiroshi SAITO , Keiichi MURAKAWA
IPC分类号： H02J7/00 , G01R31/396 , H01M10/46 , H01M50/204 , H01M50/51
CPC分类号： H02J7/0047 , G01R31/396 , H01M10/46 , H01M50/204 , H01M50/51 , H02J7/0013 , H02J7/00712
摘要： A cell number determination device, a charge and discharge control device, and a battery device with small circuit scale are provided. The cell number determination device includes: multiple differential amplifiers provided corresponding to multiple cells in a battery pack, of which the cell number is changeable, equipped with multiple cells connected in series; and multiple output circuits provided corresponding to the differential amplifiers. An input differential pair of the differential amplifiers includes a heteropolar gate NMOS transistor and an NMOS transistor.
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公开(公告)号：US20240329151A1
公开(公告)日：2024-10-03
申请号：US18485203
申请日：2023-10-11
发明人： Yoshiaki Okui
IPC分类号： G01R31/396 , H01M10/42 , H01M10/48
CPC分类号： G01R31/396 , H01M10/425 , H01M10/482 , H01M2010/4271
摘要： Provided is method of calibrating a state of charge (SOC) of a first battery module and a SOC of a second battery module that are serially connected to each other, the method including calculating the SOC of the first battery module, calculating the SOC of the second battery module, and based on the SOC of the first battery module and the SOC of the second battery module, using a direct-current-to-direct-current (DC-to-DC) converter that is electrically connected in parallel with the second battery module to calibrate the SOC of the second battery module by controlling a charge/discharge current between a storage unit and the second battery module, the storage unit being connected in parallel with the second battery module and the DC-to-DC converter.
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4.发明公开公开(公告)号：US20240319288A1
公开(公告)日：2024-09-26
申请号：US18397957
申请日：2023-12-27
申请人： CHINA AUTOMOTIVE TECHNOLOGY AND RESEARCH CENTER CO., LTD. , AUTOMOTIVE DATA OF CHINA (TIANJIN) CO., LTD. , AUTOMOTIVE DATA OF CHINA CO., LTD.
发明人： Shaoqing HE , Fang WANG , Peng ZHANG , Xiongbo HAO , Juntong CAI , Nanlin LEI , Chunhui WANG , Qingkun HOU
IPC分类号： G01R31/396 , G01R31/36 , G01R31/388 , H01M10/42
CPC分类号： G01R31/396 , G01R31/3646 , G01R31/3648 , G01R31/388 , H01M10/4285 , H01M2220/20
摘要： Disclosed are a method and a device for detecting inconsistency of single cells in vehicle battery, and a medium. The method includes obtaining current battery data for a vehicle under test, determining whether the current battery data corresponds to a charging or discharging condition, and separately evaluating the presence of inconsistency in cells under each condition. This enables distinct detection for charging and discharging conditions, thereby enhancing detection accuracy.
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5.发明公开公开(公告)号：US20240310451A1
公开(公告)日：2024-09-19
申请号：US18673312
申请日：2024-05-24
发明人： Takahiro IMAMURA , Kiyoshi INOUE , Minoru ASANO , Atsushi UOTSU , Tetsuya UEDA , Katsuyoshi SATO
IPC分类号： G01R31/3842 , B60L58/12 , G01R31/371 , G01R31/392 , G01R31/396 , H02J7/00
CPC分类号： G01R31/3842 , B60L58/12 , G01R31/371 , G01R31/392 , G01R31/396 , H02J7/0063
摘要： A battery state detection device includes a sensor, communicator circuitry, and estimator circuitry. The sensor is configured to measure at least one of a voltage, a current, and a temperature of a rechargeable battery installed to a vehicle. The communicator circuitry is configured to obtain reference information relating to battery state detection from an external device. The estimator circuitry is configured to estimate a state of the rechargeable battery based on a measured value of the sensor. The estimator circuitry is configured to correct at least one of an estimation equation and a parameter based on the reference information.
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公开(公告)号：US20240310450A1
公开(公告)日：2024-09-19
申请号：US18576980
申请日：2022-06-16
发明人： Shuhei SATO , Nan UKUMORI , Ryosuke TAKEHANA
IPC分类号： G01R31/3842 , G01R31/392 , G01R31/396
CPC分类号： G01R31/3842 , G01R31/392 , G01R31/396
摘要： An estimation device includes: an acquisition unit configured to acquire time-series data of a current and a voltage of an energy storage device; an electricity amount calculation unit configured to calculate time-series data of an electricity amount based on the time-series data of the current acquired by the acquisition unit; a generation unit configured to generate a partial charge-discharge profile of the energy storage device based on the time-series data of the acquired voltage and the time-series data of the calculated electricity amount; and an estimation unit configured to estimate an entire discharge characteristic of the energy storage device based on the partial charge-discharge profile.
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7.发明授权公开(公告)号：US12095047B2
公开(公告)日：2024-09-17
申请号：US18237840
申请日：2023-08-24
申请人： O2Micro Inc.
发明人： Yan Li , Weidong Xue
IPC分类号： H01M10/42 , G01R19/165 , G01R31/3835 , G01R31/396 , H02J7/00 , H03K5/24
CPC分类号： H01M10/4264 , G01R19/16542 , G01R31/3835 , G01R31/396 , H02J7/0016 , H02J7/0019 , H03K5/24 , H01M2010/4271 , H01M2010/4278
摘要： An open cell detection system includes a battery management system. The battery management system includes a control unit that transmits an open cell detection signal, to enable a balance unit for a first time period and to disable it for a second time period, and to enable an under-voltage comparison unit and an over-voltage comparison unit for a third time period. The under-voltage comparison unit compares a voltage with a first open cell threshold and outputs a first comparison result in the third time period. The over-voltage comparison unit compares a voltage with a second open cell threshold and outputs a second comparison result in the third time period. A judging unit determines whether a connection between a first battery unit and the battery management system is inoperative based on the first and second comparison results.
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公开(公告)号：US12087961B2
公开(公告)日：2024-09-10
申请号：US17931329
申请日：2022-09-12
申请人： LAND ENERGY, INC
IPC分类号： H01M50/258 , B60L50/64 , B60L53/80 , B62J43/30 , B62J45/20 , B62J50/22 , B62M11/02 , G01R31/36 , G01R31/367 , G01R31/396 , G01S19/42 , H01M10/42 , H01M50/204 , H01M50/209 , H01M50/242 , H01M50/249 , H01M50/251 , H01M50/256 , H02J9/06 , H02J13/00
CPC分类号： H01M50/258 , B60L50/64 , B60L53/80 , B62J43/30 , B62J45/20 , B62J50/22 , B62M11/02 , G01R31/3646 , G01R31/367 , G01R31/396 , G01S19/42 , H01M10/425 , H01M50/204 , H01M50/209 , H01M50/242 , H01M50/249 , H01M50/251 , H01M50/256 , H02J9/06 , H02J13/00022 , H01M2010/4271 , H01M2010/4278 , H01M2220/10 , H01M2220/20
摘要： A battery-centric virtual grid system may include battery modules, each including: one or more battery cells, one or more processors that obtain performance information from the one or more battery cells, the one or more processors configured to identify a respective device being powered by the respective modules from the plurality based on the respective performance information and to determine characteristics of the respective device being powered by the respective module from the plurality based on the performance information or configured to receive data from the respective device powered by the module from the plurality, the one or more transceivers configured to remotely receive and transmit data, thus the respective device becoming part of an IOT network via the respective module, and an enclosure at least partially enclosing the one or more battery cells, the one or more module processors, and the one or more transceivers.
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公开(公告)号：US12085623B2
公开(公告)日：2024-09-10
申请号：US17917400
申请日：2021-12-03
发明人： Soon-Ju Choi , Dae-Soo Kim , Young-Deok Kim , Su-Won Jee , Hyun-Jun Choi
IPC分类号： G01R31/392 , G01R19/00 , G01R31/367 , G01R31/385 , G01R31/388 , G01R31/389 , G01R31/396
CPC分类号： G01R31/392 , G01R19/0038 , G01R31/367 , G01R31/3865 , G01R31/388 , G01R31/389 , G01R31/396
摘要： A battery diagnosing technology capable of effectively diagnosing a state of a secondary battery using a charge and discharge signal extracted from the secondary battery, including memory to store a positive electrode reference profile and a negative electrode reference profile for charge or discharge of a reference battery, a voltage sensor to measure a voltage of a target battery during a charge or discharge process, and a processor to generate a plurality of charge and discharge measurement profiles based on voltages measured at a plurality of different time points, compare each of the generated charge and discharge measurement profiles with a simulation profile obtained from the positive and negative electrode reference profiles, and determine positive and negative electrode adjustment profiles for each of the generated charge and discharge measurement profiles so that an error between each charge and discharge measurement profile and the simulation profile is within a predetermined level.
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公开(公告)号：US12085622B2
公开(公告)日：2024-09-10
申请号：US17292747
申请日：2019-11-29
发明人： Kyung Sup Bang
IPC分类号： G01R31/389 , G01R31/396 , H02J7/00
CPC分类号： G01R31/389 , G01R31/396 , H02J7/0013 , H02J7/0048 , H02J7/005 , H02J7/00712
摘要： A battery cell resistance measurement device including: a carrier signal generation module configured to generate a carrier signal of a first frequency and a second frequency different from the first frequency; a resistance unit including a first resistor and a second resistor having a different resistance value from the first resistor; an impedance measurement unit configured to measure an impedance of both ends of a corresponding application target in a state where the carrier signal is applied to any one of the first resistor, the second resistor, and a battery cell; a switching unit configured to selectively connect any one of the first resistor, the second resistor, and the battery cell to the impedance measurement unit; and a control unit configured to calculate an internal resistance of the battery cell based on the impedance value measured by the impedance measurement unit.
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