公开(公告)号：US12126207B2

公开(公告)日：2024-10-22

申请号：US17417277

申请日：2020-05-07

申请人： LG ENERGY SOLUTION, LTD.

发明人： Chang-Hyun Sung

IPC分类号： H02J7/00 ,  B60L58/22 ,  G01R31/382 ,  G01R31/392 ,  G01R31/396

CPC分类号： H02J7/007182 ,  B60L58/22 ,  G01R31/382 ,  G01R31/392 ,  G01R31/396 ,  H02J7/00032 ,  H02J7/0016 ,  H02J7/0029 ,  H02J7/0048 ,  H02J7/005

摘要： Provided are a battery controller, a wireless battery control system, a battery pack and a battery balancing method. The battery controller is for a battery module comprising a positive terminal, a negative terminal and a plurality of battery cells electrically connected in series between the positive terminal and the negative terminal. The battery controller comprises a voltage measuring unit to generate a voltage signal indicating a cell voltage of each of the plurality of battery cells, and a control module. The control module wirelessly transmits sensing data indicating the cell voltage of each of the plurality of battery cells while the control module is operating using a first cell voltage of a bottommost cell of the plurality of battery cells as power for operating the control module.

公开(公告)号：US20240253523A1

公开(公告)日：2024-08-01

申请号：US18159727

申请日：2023-01-26

申请人： GM GLOBAL TECHNOLOGY OPERATIONS LLC

发明人： Brendan M. Conlon ,  Zhijian J. Wu

IPC分类号： B60L58/19 ,  B60L3/00 ,  B60L58/22 ,  H02J7/00

CPC分类号： B60L58/19 ,  B60L3/0046 ,  B60L58/22 ,  H02J7/0024

摘要： An electric vehicle includes a reconfigurable energy storage system with a first submodule and a second submodule. An interface circuit is operable to transfer a charging power to the reconfigurable energy storage system from a charging station that is external to the electric vehicle. A switching circuit is operable to electrically arrange the first submodule and the second submodule in series or in parallel. A diode is operable to convey the charging power between the first submodule and the second submodule while the reconfigurable energy storage system is arranged in series and the charging power is present. A bias circuit is operable to maintain a reverse bias across the diode while the reconfigurable energy storage system is arranged in series and the charging power is absent.

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：US12024051B2

公开(公告)日：2024-07-02

申请号：US17370549

申请日：2021-07-08

申请人： VOLVO TRUCK CORPORATION

发明人： Tobias Smidebrant

IPC分类号： B60L58/12 ,  B60L53/53 ,  B60L58/22

CPC分类号： B60L58/12 ,  B60L58/22 ,  B60L53/53 ,  B60L2240/529 ,  B60L2240/547 ,  B60L2240/549 ,  B60Y2200/91

摘要： A master electronic control unit controls a plurality of batteries, and is communicatively connected to each one of the battery control units. The master electronic control unit provides a predefined electric interference to the traction voltage bus after a signal to open the at least one contactor of each battery has been provided. Each battery control unit detects the predefined electric interference, and when the predefined electric interference is detected, the at least one battery control unit issues a signal that the predefined electric interference was detected.

公开(公告)号：US20240208363A1

公开(公告)日：2024-06-27

申请号：US18598707

申请日：2024-03-07

申请人： Hyundai Motor Company ,  Kia Corporation

发明人： Jung Hyun Lee

IPC分类号： B60L58/20 ,  B60L53/80 ,  B60L58/22

CPC分类号： B60L58/20 ,  B60L53/80 ,  B60L58/22 ,  B60L2240/527 ,  B60L2240/545

摘要： An electrified vehicle capable of additionally mounting a swappable battery and a power source management method for the same are provided. A method of power source management of an electrified vehicle is provided, comprising connecting a swappable battery unit to a connector in an electrified vehicle comprising a first battery fixedly arranged with a main battery unit, a first battery management system configured to control the first battery, and a DC converter having a first end and a second end, the swappable battery unit comprises a second battery, and a second battery management system configured to control the second battery. The method further comprises determining, using a vehicle control unit, a target integrated voltage to be supplied to a power electric unit, and transmitting, using the vehicle control unit, a voltage command corresponding to a target output voltage to the DC converter, according to a determined target integrated voltage.

公开(公告)号：US20240198854A1

公开(公告)日：2024-06-20

申请号：US18200209

申请日：2023-05-22

申请人： Hyundai Motor Company ,  Kia Corporation

发明人： Yoon Cheol Jeon ,  Hyun Ki Cho ,  Jin Soo Jang

IPC分类号： B60L58/22 ,  B60L53/20 ,  B60L58/12 ,  B64D27/24 ,  B64U50/34 ,  H02J7/00

CPC分类号： B60L58/22 ,  B60L53/20 ,  B60L58/12 ,  B64D27/24 ,  B64U50/34 ,  H02J7/0048 ,  B60L2200/10 ,  B64D2221/00 ,  H02J2207/20

摘要： Provided is a method in an electricity-driven apparatus to be driven by receiving power through a plurality of battery packs in a parallel type. The method includes detecting a state of charge (SOC) of each of the plurality of battery packs, calculating a voltage difference between the plurality of battery packs based on the detected SOC, and performing battery pack balancing based on the calculated voltage difference exceeding a threshold value. The battery pack balancing is performed by a pre-charging circuit including a balancing relay.

公开(公告)号：US12015288B2

公开(公告)日：2024-06-18

申请号：US17395859

申请日：2021-08-06

申请人： HONDA MOTOR CO., LTD.

发明人： Koji Saotome

IPC分类号： H02J7/00 ,  B60L58/22 ,  G01R31/382 ,  H01M10/48

CPC分类号： H02J7/0016 ,  B60L58/22 ,  G01R31/382 ,  H01M10/482 ,  H02J7/0018 ,  H02J7/0019

摘要： An electrical energy storage device is constituted by connecting together a plurality of battery cells. Each of the battery cells includes a transformer forming unit constituted by a first inductor, a second inductor, a first core member, and a second core member, and which is capable of forming a transformer between itself and an adjacent battery cell, and a potential detection unit that detects the potential of the battery cell. A control unit compares the potentials of the adjacent battery cells based on measurement results of a potential detection unit. Furthermore, the control unit performs an equalization control to equalize the potentials of the plurality of battery cells, by supplying electrical charge from the battery cell having a higher potential to the battery cell having a lower potential.

公开(公告)号：US20240151750A1

公开(公告)日：2024-05-09

申请号：US18232062

申请日：2023-08-09

申请人： HYUNDAI MOTOR COMPANY ,  KIA CORPORATION

发明人： Wonseok JIN

IPC分类号： G01R19/165 ,  G07C5/00 ,  G07C5/08 ,  H01M10/42 ,  H01M10/46 ,  H04L67/12

CPC分类号： G01R19/16542 ,  G07C5/008 ,  G07C5/085 ,  H01M10/425 ,  H01M10/46 ,  H04L67/12 ,  B60L58/22

摘要： A server learns inference information for inferring a voltage difference value between a first battery and a second battery, and a vehicle communicates with the server. The vehicle includes: a low-voltage DC-DC converter (LDC); a first battery; a second battery; a battery equalizer (BEQ); a memory; and a processor configured to obtain output difference value between an output value of the LDC and an output value of the BEQ, obtain the voltage difference value corresponding to the obtained output difference value based on the inference information, and determine a charge time of the first battery and the second battery based on the obtained voltage difference value and a reference value.

公开(公告)号：US20240140269A1

公开(公告)日：2024-05-02

申请号：US18407387

申请日：2024-01-08

申请人： Deltran Operations USA, Inc.

发明人： Edward William Brumley, JR. ,  Peter James Shread

IPC分类号： B60L58/22 ,  B60L58/15 ,  G01R31/3842 ,  G01R31/396 ,  H01M10/42 ,  H01M10/44 ,  H01M10/48 ,  H02J7/00

CPC分类号： B60L58/22 ,  B60L58/15 ,  G01R31/3842 ,  G01R31/396 ,  H01M10/4257 ,  H01M10/441 ,  H01M10/482 ,  H02J7/0019 ,  H02J7/00308 ,  H02J7/0048 ,  H02J7/007 ,  B60L2250/12 ,  B60L2250/30 ,  H01M2010/4271 ,  H01M2010/4278

摘要： A battery management system for batteries, such as, but not limited to, electric vehicle battery packs and cells, lithium iron phosphate batteries, lead acid batteries, gel batteries, and absorbed gel mat batteries, in engine start applications is disclosed. The battery management system is configured to control the charge and charging of each cell individually. The battery management system may be configured to control the charge of a battery which may consist of a plurality of cells, such as, but not limited to, lithium iron phosphate cells, and in at least one embodiment, the battery may consist of, but is not limited to being formed from, four lithium iron phosphate cells connected in series and a battery management system to ensure proper charge and safe operation.

公开(公告)号：US20240059188A1

公开(公告)日：2024-02-22

申请号：US18230071

申请日：2023-08-03

申请人： Dr. Ing. h.c. F. Porsche Aktiengesellschaft

发明人： Daniel Simon

IPC分类号： B60L58/22 ,  B60L58/12 ,  B60L50/60

CPC分类号： B60L58/22 ,  B60L58/12 ,  B60L50/60 ,  B60L2240/547

摘要： A method is provided for controlling a battery unit of a motor vehicle. The battery unit is configured to provide electrical energy to an electric drivetrain (M) of the motor vehicle, and the electric drivetrain (M) is configured to drive the motor vehicle. The battery unit has a plurality of battery modules (U1, U2, UN, V1, V2, VN, W1, W2; WN). The method comprises: monitoring whether the battery unit is in a powered-off state; measuring a period of time during which the battery unit is in the powered-off state; and transitioning the battery unit from the powered-off state into a powered-on state when the period of time exceeds a time threshold. The battery modules (U1, U2, UN, V1, V2, VN, W1, W2; WN) are connected electrically in parallel to one another in the powered-on state.