公开(公告)号：US11852689B2

公开(公告)日：2023-12-26

申请号：US17563174

申请日：2021-12-28

申请人： BETA AIR, LLC

发明人： Herman Wiegman

IPC分类号： G01R31/36 ,  G01R31/392 ,  G01R31/396 ,  G01R31/3842 ,  G01R31/371 ,  B64C39/02 ,  G01R31/364 ,  B64U50/19

CPC分类号： G01R31/392 ,  B64C39/024 ,  G01R31/364 ,  G01R31/371 ,  G01R31/3842 ,  G01R31/396 ,  B64U50/19

摘要： Aspects relate to a connector for charging an electric vehicle and a method for its use. An exemplary connector includes at least a direct current conductor configured to conduct a direct current, at least an alternating current conductor, configured to conduct an alternating current, at least a computing device wherein the computer is configured to receive a measurement datum of a battery module from a communicatively connected sensor, determine an operating condition of the charging circuit; identify an error element as a function of the operating condition, and transmit the identification of the error element to a data storage system.

公开(公告)号：US20230406109A1

公开(公告)日：2023-12-21

申请号：US18319606

申请日：2023-05-18

申请人： QuantumScape Battery, Inc.

发明人： Timothy HOLME

IPC分类号： B60L3/12 ,  B60L58/12 ,  B60L50/60 ,  G01R31/36 ,  G01R31/396 ,  G01R31/382 ,  H01M10/48 ,  H01M50/204

CPC分类号： B60L3/12 ,  B60L58/12 ,  B60L50/66 ,  G01R31/3648 ,  G01R31/396 ,  G01R31/382 ,  H01M10/486 ,  H01M50/204

摘要： A battery management system (BMS) for a vehicle includes a module for estimating the state of a rechargeable battery, such as its state of charge, in real time. The module includes a learning model for predicting the state of a battery based on the vehicle's usage and related factors unique to the vehicle, in addition to a sensed voltage, current and temperature of a battery.

公开(公告)号：US20230402865A1

公开(公告)日：2023-12-14

申请号：US18457113

申请日：2023-08-28

申请人： Nuvoton Technology Corporation Japan

发明人： Tsutomu SAKAKIBARA ,  Naohisa HATANI ,  Hitoshi KOBAYASHI ,  Jiro MIYAKE ,  Ken MARUYAMA ,  Toshinobu NAGASAWA ,  Toshiaki OZEKI ,  Goro MORI

IPC分类号： H02J7/00 ,  G01R31/3835 ,  G01R31/396 ,  H01M10/42 ,  H01M10/48

CPC分类号： H02J7/00712 ,  H02J7/0047 ,  H02J7/0013 ,  H02J7/00032 ,  G01R31/3835 ,  G01R31/396 ,  H01M10/425 ,  H01M10/482 ,  H02J2207/20 ,  H01M2010/4271 ,  H01M2010/4278

摘要： A cell stack management system includes a cell monitoring unit that measures an output voltage of a plurality of power storage cells, a battery management unit that manages a cell stack, and a first communication network that connects the cell monitoring unit and the battery management unit. The battery management unit includes: a first communication circuit connected to the first communication network; a second communication circuit connected to a second communication network for connecting to a higher-level system; a control circuit that controls the battery management unit; and a control circuit power supply. The cell stack management system includes a normal mode and a low-power mode as modes of operation. During transition from the low-power mode to the normal mode, the first communication circuit activates at least one of the control circuit power supply, the control circuit, or the second communication circuit.

公开(公告)号：US20230400520A1

公开(公告)日：2023-12-14

申请号：US18447043

申请日：2023-08-09

申请人： Huawei Digital Power Technologies Co., Ltd.

发明人： Lin Li ,  Zhipeng Wu

IPC分类号： G01R31/3835 ,  G01R31/396 ,  H02J7/00

CPC分类号： G01R31/3835 ,  G01R31/396 ,  H02J7/0013 ,  H02J7/0048

摘要： This application provides an energy storage system and an energy storage system detection method. The method includes: A first control unit sends a first instruction to a first battery cluster to change an output voltage of the first battery cluster. The first control unit obtains a first input voltage and a second input voltage that are of each of a plurality of power conversion units. The first control unit determines, based on the first instruction, and the first input voltage and the second input voltage that are of each of the plurality of power conversion units, whether each of the plurality of power conversion units is connected to the first battery cluster. On this basis, whether there is a connection error in the energy storage system is determined. Then, a security risk in the system is eliminated.

公开(公告)号：US20230393209A1

公开(公告)日：2023-12-07

申请号：US17832291

申请日：2022-06-03

申请人： TotalEnergies OneTech SAS ,  The Regents of the University of California ,  Universite Libre De Bruxelles

发明人： Chitra DANGWAL ,  Scott MOURA ,  Preet GILL ,  Dong ZHANG ,  Luis COUTO ,  Wente ZENG ,  Sebastien BENJAMIN

IPC分类号： G01R31/3842 ,  H02J7/00 ,  G01R31/396 ,  G01R31/374 ,  G01R31/367

CPC分类号： G01R31/3842 ,  H02J7/0048 ,  G01R31/396 ,  G01R31/374 ,  G01R31/367

摘要： A method of predicting state of power (SOP) for a battery includes estimating first state parameter bounds of the battery using an internal observer process; obtaining a current value based upon the first state parameter bounds, system constraint variables, a scaling factor and a reference current using a modified reference governor process; performing adaptive parameter bounding to obtain second state parameter bounds using the current value; determining a constraint variable based upon the second state parameter bounds and whether the constraint variable is within the system constraint variables the using an interval prediction process; and generating a modified scaling factor based upon whether the constraint variable is within the system constraint variables. Using the modified scaling factor, the obtaining, performing, determining and modifying are repeated to generate a final current value. The SOP is estimated based upon the final current value.

公开(公告)号：US11835589B2

公开(公告)日：2023-12-05

申请号：US17487848

申请日：2021-09-28

申请人： Robert Bosch GmbH

发明人： Christian Simonis ,  Christoph Woll

IPC分类号： G01R31/392 ,  G01R31/396 ,  G06N20/00 ,  G01R31/367 ,  G06N3/047

CPC分类号： G01R31/392 ,  G01R31/367 ,  G01R31/396 ,  G06N20/00 ,  G06N3/047

摘要： A method for operating a system including a battery-operated machine having a battery, the method includes continuously providing operating variables of the battery, ascertaining operating features for a current evaluation period depending on characteristics of the provided operating variables, the operating features characterizing a use of the battery in the current evaluation period, ascertaining at least one stress-maximizing operating feature of the ascertained operating features that is associated with a stress factor for the battery using a state of health model, the stress factor having a greatest influence on aging of the battery, and signaling a measure in the battery-operated machine depending on the stress factor.

公开(公告)号：US11835588B2

公开(公告)日：2023-12-05

申请号：US16932036

申请日：2020-07-17

申请人： DENSO CORPORATION

发明人： Masaaki Kitagawa

IPC分类号： G01R31/389 ,  G01R31/382 ,  G01R31/396 ,  H01M10/42 ,  H01M10/48 ,  H02J7/00

CPC分类号： G01R31/389 ,  G01R31/382 ,  G01R31/396 ,  H01M10/4235 ,  H01M10/48 ,  H02J7/0047

摘要： A waveform designator designates a given waveform of an AC signal by specifying a frequency as a reference. A signal controller causes a storage battery to output a response signal based on its own power. A detector detects a frequency component in the response signal corresponding to the reference frequency of the AC signal based on a product of the reference frequency and the response signal. A calculator calculates a complex impedance of the storage battery based on the frequency component in the response signal. A noise determiner determines presence or absence of a noise signal corresponding to the reference frequency of the AC signal before the signal controller causes the storage battery to output the AC signal. A noise controller either avoids or removes the noise signal.

公开(公告)号：US20230378785A1

公开(公告)日：2023-11-23

申请号：US18030419

申请日：2022-02-07

申请人： LG ENERGY SOLUTION, LTD.

发明人： Ho Jin CHOI

IPC分类号： H02J7/00 ,  H01M10/42 ,  G01R31/396

CPC分类号： H02J7/0047 ,  H01M10/425 ,  G01R31/396 ,  H01M2010/4271

摘要： A power supply management apparatus according to an embodiment disclosed herein includes a determining unit determining a level of a fault when the fault occurs, a first control unit setting a control point in time for cutting off power supply to a load according to the level of the fault and generating a first control command according to the control point in time, a second control unit generating a second control command corresponding to a power supply maintaining time when the fault occurs, and a third control unit generating a third control command for controlling the power supply to the load, based on the first control command and the second control command.

公开(公告)号：US11821958B2

公开(公告)日：2023-11-21

申请号：US17584750

申请日：2022-01-26

申请人： Nuvation Research Corporation

发明人： Michael Worry ,  Stefan Janhunen ,  Manoj Mathew

IPC分类号： G01R31/392 ,  H02J7/00 ,  G01R31/396 ,  G01R31/374 ,  G01R31/3842

CPC分类号： G01R31/392 ,  G01R31/374 ,  G01R31/3842 ,  G01R31/396 ,  H02J7/005

摘要： Systems, methods, and devices are provided for estimating a state-of-health (SOH) in an energy storage system, where the estimate accounts for both power fade and capacity fade. The SOH estimation system comprises a SOH estimation module configured to receive, and to determine the estimate of the SOH based on: a nominal capacity input; a voltage input; a current input; a nominal open circuit voltage curve; an operational resistance model; a nominal resistance model; an operational dynamic model; and a rated discharge current. The SOH estimation module may further comprise a SOH aggregation module configured to receive a power rating estimate, PRn, and a normalized capacity estimate, NCn, and may be configured to determine the estimate of the SOH based on the power rating estimate, PRn, and the normalized capacity estimate, NCn.

公开(公告)号：US11820252B2

公开(公告)日：2023-11-21

申请号：US17871492

申请日：2022-07-22

申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA

发明人： Takaya Koshii

IPC分类号： B60L58/12 ,  G01R31/389 ,  G01R31/396 ,  H01M10/44 ,  G01R31/392

CPC分类号： B60L58/12 ,  G01R31/389 ,  G01R31/396 ,  H01M10/443 ,  G01R31/392

摘要： A battery diagnostic device includes an acquisition unit that acquires a temperature and an internal resistance of a battery; a determination unit that determines a diagnostic temperature that is a temperature used for a diagnosis of the battery, based on the temperature acquired by the acquisition unit; an estimation unit that estimates the internal resistance of the battery at the diagnostic temperature based on the temperature and the internal resistance acquired by the acquisition unit and the diagnostic temperature determined by the determination unit; and a diagnosis unit that diagnoses the battery based on the internal resistance estimated by the estimation unit.