公开(公告)号：US20240051431A1

公开(公告)日：2024-02-15

申请号：US18054742

申请日：2022-11-11

申请人： Foundation for Research and Business, Seoul National University of Science and Technology ,  Hyundai Motor Company ,  Kia Corporation

发明人： In Yong Yeo ,  Youn Sik Lee ,  Se Wan Choi

IPC分类号： B60L58/22 ,  B60L50/60 ,  B60L53/20 ,  B60L53/80 ,  H02J7/00 ,  H02J7/34 ,  H02M3/156

CPC分类号： B60L58/22 ,  B60L50/60 ,  B60L53/20 ,  B60L53/80 ,  H02J7/0063 ,  H02J7/0016 ,  H02J7/342 ,  H02M3/156 ,  B60L2210/12 ,  H02J2207/20 ,  H02M1/4208

摘要： A power conversion system includes: a main battery configured to be recharged with power and to supply the recharged power to a motor, thereby supplying rotation force to a wheel of a vehicle; an auxiliary battery configured to recharge the main battery or to assist a power supply function of the main battery; and a power converter connected to auxiliary battery, the power converter comprising a bypass circuit and a buck converter. The buck converter includes a buck switch, and is configured to convert a voltage of the auxiliary battery into a voltage for recharging the main battery in accordance with an ON/OFF switching operation of the buck switch.

公开(公告)号：US11897362B2

公开(公告)日：2024-02-13

申请号：US17727143

申请日：2022-04-22

申请人： Exro Technologies Inc.

发明人： Tung Nguyen ,  Eric Hustedt

IPC分类号： H02J7/00 ,  G01R31/396 ,  B60L58/10 ,  G01R31/392 ,  G01R31/374 ,  G01R31/3842 ,  B60L58/15 ,  B60L58/13 ,  B60L58/12 ,  B60L58/14

CPC分类号： B60L58/10 ,  G01R31/374 ,  G01R31/3842 ,  G01R31/392 ,  G01R31/396 ,  H02J7/005 ,  H02J7/007 ,  H02J7/0016 ,  H02J7/0048 ,  B60L58/12 ,  B60L58/13 ,  B60L58/14 ,  B60L58/15

摘要： A battery control system includes a plurality of battery cells that are separately controllable as units of individual cells or groups of cells. Each controllable unit may be switchably activated or deactivated in the overall battery circuit, and one or more conditions of each controllable unit may be individually measured. Various techniques are disclosed for operating the battery control system to optimize or improve system performance and longevity.

公开(公告)号：US20240039304A1

公开(公告)日：2024-02-01

申请号：US18256671

申请日：2021-12-14

申请人： KK Wind Solutions A/S

发明人： Lóránd BEDE ,  Anders Eggert MAARBJERG

IPC分类号： H02J7/00 ,  H01M10/42 ,  H01M10/48

CPC分类号： H02J7/0019 ,  H02J7/0016 ,  H02J7/0048 ,  H01M10/4207 ,  H01M10/425 ,  H01M10/482 ,  H01M2010/4271

摘要： The invention relates to an energy storage (1) and a method of controlling an energy storage where at least one of a plurality of series connected energy modules (5a-5n) is connected in a reverse polarity energy module so that the positive terminal thereof is connected to the positive terminal of a first energy module of the plurality of series connected energy modules of the string, and the negative terminal is connected to the negative terminal of a second energy module of the plurality of series connected energy modules of the string or at least one energy module of the plurality of energy modules is bypassed for a specific current flow direction through the battery string.

公开(公告)号：US20240039301A1

公开(公告)日：2024-02-01

申请号：US18165388

申请日：2023-02-07

申请人： SIMPLO TECHNOLOGY CO, LTD.

发明人： Yi Ren GUO

IPC分类号： H02J7/00 ,  G01R31/3842

CPC分类号： H02J7/0016 ,  H02J7/0048 ,  H02J7/005 ,  G01R31/3842

摘要： A method and a device for balancing a battery state are provided, in which the method includes executing a battery capacity balancing of a plurality of battery packs when voltage information of the plurality of battery packs is open circuit voltages or when balanced voltages of the plurality of battery packs are on the same curve fragment, such that balanced capacities of the plurality of battery packs can be calculated via aging voltage compensation parameters and/or aging capacity compensation parameters of the plurality of battery packs, and a capacity adjustment can be performed according to the balanced capacities. Therefore, the battery capacity balancing can be performed by obtaining voltages in different states, and the battery capacity of each battery pack can be accurately adjusted to achieve balance among the battery packs by taking the aging parameters of the battery packs into consideration.

公开(公告)号：US20240014668A1

公开(公告)日：2024-01-11

申请号：US17965421

申请日：2022-10-13

申请人： Shaheen Moubedi ,  Gerald Nilles ,  Stephen Pomes

发明人： Shaheen Moubedi ,  Gerald Nilles ,  Stephen Pomes

IPC分类号： H02J7/00 ,  G02C11/00

CPC分类号： H02J7/0016 ,  H02J7/0047 ,  H02J7/0063 ,  G02C11/10 ,  H02J2207/20

摘要： A closed loop control system actively regulates the battery current paths of physically separated circuits so that the current is approximately the same for each of the circuits regardless of the various system loads. The closed loop control system modulates the current paths by either modulating a high side transistor used to independently limit each battery's current path or by modulating a DC/DC converter's output voltage to independently boost each battery's current path. The closed loop control system is also designed to handle undervoltage lockout (UVLO) situations when one of the batteries is nearing empty to tilt the power balance in the chance that there is an existing battery charge mismatch to support system load bursts and to turn off the circuit when the system current draw is exceptionally low. A tilting circuit also identifies and discharges the battery with the higher charge until the charge states are substantially equal.

公开(公告)号：US20230420955A1

公开(公告)日：2023-12-28

申请号：US18462524

申请日：2023-09-07

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

发明人： Yezheng ZHANG ,  Zongzhe LIU

IPC分类号： H02J7/00 ,  H01M10/42 ,  H01M10/48 ,  H01M10/46 ,  H01M10/44

CPC分类号： H02J7/0016 ,  H02J7/0047 ,  H02J7/00712 ,  H01M10/425 ,  H01M10/482 ,  H01M10/46 ,  H01M10/441 ,  H01M2010/4271 ,  H01M2010/4278

摘要： A distributed power supply system and a control method. The system includes a battery management system and M battery units, where the battery unit includes a battery management unit and a cell. The battery management system is configured to communicate with the M battery management units to obtain M pieces of state information and send an instruction to a target battery management unit in the M battery management units based on the M pieces of state information. The target battery management unit is configured to control, according to the instruction, voltage balancing for a battery unit in which the target battery unit is located.

公开(公告)号：US20230411712A1

公开(公告)日：2023-12-21

申请号：US18113084

申请日：2023-02-23

申请人： STL TECHNOLOGY CO., LTD.

发明人： Cooper Chang

IPC分类号： H01M10/44 ,  H01M10/04 ,  H02J7/00 ,  H01M10/48

CPC分类号： H01M10/441 ,  H01M10/0445 ,  H02J7/0016 ,  H01M10/482 ,  H01M2010/4271

摘要： The invention provides a battery equipment discharge balancing method, wherein a battery module of the battery equipment includes a plurality of battery blocks connected in parallel, and each battery block includes a plurality of battery cells connected in series. During the discharging process, the voltage of each battery cell is measured to generate a plurality of battery cell voltages. When any one of battery cell voltages reaches a cut-off discharge voltage, it is determined that the battery module is fully discharged. Thereafter, a minimum battery cell voltage in each battery block is obtained respectively to generate a plurality of cut-off battery cell voltages. The discharge ratio of each battery block in the next discharge process is adjusted according to the cut-off battery cell voltages respectively, so as to increase the discharge capacity and service life of the battery module.

公开(公告)号：US20230396080A1

公开(公告)日：2023-12-07

申请号：US18317061

申请日：2023-05-13

申请人： YAZAKI CORPORATION

发明人： Chihiro Ono ,  Takahiro Syouda

IPC分类号： H02J7/00

CPC分类号： H02J7/0016 ,  H02J7/0048

摘要： A storage battery control device for controlling a power storage system including storage battery modules and a bypass circuit executes a first process of causing the storage battery modules to discharge while switching the storage battery modules caused to be bypassed by the bypass circuit so as to reduce a difference between remaining discharge amounts until discharge completion of the storage battery modules; and a second process of completing the discharge of the storage battery modules after the first process. The first process is executed until an OCV or an SOC of the storage battery modules decreases to be equal to or smaller than a threshold value of the OCV or the SOC set for the storage battery modules. The first process is executed so that available output power of the storage battery module caused to discharge does not fall below minimum necessary power of a power supply destination.

公开(公告)号：US20230396079A1

公开(公告)日：2023-12-07

申请号：US18317060

申请日：2023-05-13

申请人： YAZAKI CORPORATION

发明人： Chihiro Ono ,  Takahiro Syouda

IPC分类号： H02J7/00 ,  H01M10/44

CPC分类号： H02J7/0016 ,  H02J7/0032 ,  H01M10/441 ,  H02J7/00716

摘要： A storage battery control device constructed of a controller and a driver is provided so as to control a power storage system. The power storage system has storage battery strings including a plurality of power storage batteries connected in series and bypass circuits, power converters configured to convert input and output voltages of the storage battery strings, and a string switch configured to connect or disconnect the storage battery strings and the power converters. The string switch is brought into a disconnected state by the storage battery control device before execution of a bypass operation by the bypass circuits, and is brought into a connected state by the storage battery control device after the execution of the bypass operation by the bypass circuit.

公开(公告)号：US11837694B2

公开(公告)日：2023-12-05

申请号：US17246921

申请日：2021-05-03

申请人： MILWAUKEE ELECTRIC TOOL CORPORATION

发明人： Todd W. Johnson ,  Dennis J. Grzybowski ,  Mark A. Kubale ,  Jay J. Rosenbecker ,  Gary D. Meyer ,  Jeffrey M. Zeiler ,  Kevin L. Glasgow ,  Karl F. Scheucher

IPC分类号： H01M10/48 ,  H01M10/0525 ,  B25F5/00 ,  H01M4/505 ,  H01M10/052 ,  H01M10/42 ,  H01M10/44 ,  H01M10/46 ,  H02J7/00 ,  H01M50/213 ,  H01M50/296 ,  H01M50/247 ,  H01M4/525 ,  G01R31/382 ,  H01M50/262

CPC分类号： H01M10/0525 ,  B25F5/00 ,  H01M4/505 ,  H01M4/525 ,  H01M10/052 ,  H01M10/425 ,  H01M10/4207 ,  H01M10/441 ,  H01M10/46 ,  H01M10/482 ,  H01M50/213 ,  H01M50/247 ,  H01M50/296 ,  H02J7/00 ,  H02J7/005 ,  H02J7/0016 ,  H02J7/0025 ,  H02J7/0031 ,  H02J7/0045 ,  H02J7/0048 ,  H02J7/0063 ,  H02J7/0071 ,  H05K999/99 ,  G01R31/382 ,  H01M50/262 ,  H01M2010/4271 ,  H01M2200/00 ,  H01M2220/30 ,  Y02E60/10 ,  Y10T408/65

摘要： An electrical combination including a power tool and a battery pack. The power tool includes power tool terminals. The battery pack is configured to be interfaced with the power tool. The battery pack includes a battery pack housing, at least three terminals, and a plurality of battery cells. The battery pack terminals include a positive terminal, a negative terminal, and a sense terminal. The at least three terminals are configured to be interfaced with the power tool terminals. The plurality of battery cells are arranged within and supported by the battery pack housing. Each of the battery cells has a lithium-based chemistry and a respective state of charge, and power is transferable between the battery cells and the power tool. A circuit is configured to monitor the battery cells, detect a charge imbalance among the battery cells, and prevent the battery pack from operating when the charge imbalance is detected.