公开(公告)号：US20240021936A1

公开(公告)日：2024-01-18

申请号：US18373963

申请日：2023-09-28

Applicant: BYD COMPANY LIMITED

Inventor： Guosheng TANG ,  Liwei LIANG ,  Shumin HU ,  Jian ZHANG ,  Jinzhong OUYANG

IPC: H01M50/202 ,  H01M50/271 ,  H01M50/224

CPC classification number: H01M50/202 ,  H01M50/271 ,  H01M50/224

Abstract: A battery housing includes an upper housing and a lower housing. The lower housing includes a bottom portion and first side walls, the first side walls extend upward from edges of the bottom portion, the bottom portion and the first side walls enclose a cavity, and at least one of the first side walls having a first flange on an end of the first side wall away from the bottom portion. The upper housing is located above the lower housing, the upper housing includes a top portion and a second flange, a second concave structure is disposed at a joint between the second flange and the top portion, the first flange is in contact with the second flange by welding to obtain melt, and the melt is disposed in the second concave structure.

公开(公告)号：US20240021786A1

公开(公告)日：2024-01-18

申请号：US18476694

申请日：2023-09-28

Applicant: BYD COMPANY LIMITED

Inventor： Xinjun JIANG ,  Baosheng ZHANG

IPC: H01M4/139 ,  H01M4/04 ,  H01M50/533 ,  H01M50/534

CPC classification number: H01M4/139 ,  H01M4/0404 ,  H01M50/533 ,  H01M50/534 ,  H01M2004/028

Abstract: A method for preparing a positive electrode plate, a positive electrode plate, and a battery including same. The method for preparing a positive electrode plate includes: providing a current collector, the current collector including a coating region and a non-coating region; coating a positive-electrode active material on the coating region of the current collector; cutting the non-coating region at intervals along a length direction of the non-coating region to form a tab between every two adjacent cutting positions, an edge of a region of the positive-electrode active material corresponding to the cutting position being cut off at each cutting; and coating an electrically insulating adhesive on an edge of the positive-electrode active material between every two adjacent cutting positions.

公开(公告)号：US20240021388A1

公开(公告)日：2024-01-18

申请号：US18372470

申请日：2023-09-25

Applicant: BYD COMPANY LIMITED

Inventor： Baotong YAO ,  Qiang SHEN ,  Lujian WANG

IPC: H01H50/04 ,  H01H50/64 ,  H01H50/14 ,  H01H50/02

CPC classification number: H01H50/047 ,  H01H50/64 ,  H01H50/14 ,  H01H50/021 ,  H01H2050/049

Abstract: A relay, includes a housing and multiple contact modules. An interior of the housing has an accommodation space, and each contact module includes a terminal assembly, a movable contact plate, and a drive assembly. The terminal assembly includes two terminals spaced apart and disposed on the housing. The terminal at least partially extends into the accommodation space to form a static contact. The movable contact plate is movably disposed in the accommodation space, and is configured to contact two static contacts to conduct the two terminals. The drive assembly includes a drive shaft and a drive unit that drives the drive shaft. The drive shaft is connected to the movable contact plate, and the drive unit is configured to drive the movable contact plate via the drive shaft. Multiple drive shafts corresponding to the multiple contact modules are disposed coaxially, and are relatively movable in their axial direction.

公开(公告)号：US20240019496A1

公开(公告)日：2024-01-18

申请号：US18373821

申请日：2023-09-27

Applicant: BYD COMPANY LIMITED

Inventor： Linwang DENG ,  Tianyu FENG ,  Pengqing ZHANG ,  Xiaoqian LI

IPC: G01R31/367 ,  G01R31/392 ,  G01R31/387 ,  G01R31/374

CPC classification number: G01R31/367 ,  G01R31/392 ,  G01R31/387 ,  G01R31/374

Abstract: A method for obtaining a capacity of a power battery includes: collecting, by sensors, sample data of the power battery; dividing, by a processor, the sample data into multiple categories, each of the categories having a corresponding aging model and a feature identifier, the feature identifier identifying features of sample data of a corresponding category, and the aging model being obtained by: determining a fitting relationship in the aging model, and determining parameters in the fitting relationship according to sample data of a corresponding type of the aging model; acquiring, by the processor, battery state parameters of the power battery; selecting, by the processor, an aging model from multiple aging models according to the battery state parameters; and inputting, by the processor, the battery state parameters into the selected aging model to obtain the capacity of the power battery.

公开(公告)号：US20240018895A1

公开(公告)日：2024-01-18

申请号：US18373221

申请日：2023-09-26

Applicant: BYD COMPANY LIMITED

Inventor： Futang ZHU ,  Chunsheng WANG ,  Qiuping HUANG

IPC: F01P7/16 ,  F01P11/18

CPC classification number: F01P7/167 ,  F01P11/18 ,  F01P2037/00

Abstract: A method for controlling thermal management of a vehicle is provided. The vehicle includes an engine and a thermal management system. The thermal management system includes a water pump. The engine and the water pump are connected to form a first cooling circulation. The method includes: controlling the water pump according to a current temperature of the engine, a total engine power, and a current vehicle speed. In response to that a current temperature of the engine is less than or equal to a temperature threshold, a total engine power is greater than or equal to a power threshold, and a current vehicle speed is less than or equal to a vehicle speed threshold, controlling the water pump to periodically switch between a start state and a stop state.

公开(公告)号：US20240017729A1

公开(公告)日：2024-01-18

申请号：US18373164

申请日：2023-09-26

Applicant: BYD COMPANY LIMITED

Inventor： Guanwen WANG ,  Yinsheng LIAO ,  Hongzhou ZHANG

IPC: B60W40/13 ,  B60W40/105 ,  B60W40/107 ,  B60W40/11

CPC classification number: B60W40/13 ,  B60W40/105 ,  B60W40/107 ,  B60W40/11 ,  B60W2040/1307 ,  B60W2520/105 ,  B60W2520/16 ,  B60W2530/10

Abstract: A method for identifying vehicle load distribution includes the steps of: detecting a speed and longitudinal acceleration of the vehicle; when the longitudinal acceleration is less than an acceleration threshold, acquiring a driving force of the vehicle; obtaining, by a processor, a pitch angle of the vehicle according to the driving force and the vehicle speed; and obtaining, by the processor, load distribution of the vehicle according to the pitch angle.

公开(公告)号：US20240017588A1

公开(公告)日：2024-01-18

申请号：US18374204

申请日：2023-09-28

Applicant: BYD COMPANY LIMITED

Inventor： Shibai LI ,  Wei JIN ,  Min XU ,  Meijiao YE ,  Yuzhong LI

IPC: B60H1/00

CPC classification number: B60H1/00485 ,  B60H1/00278 ,  B60H1/00885 ,  B60H1/00321 ,  B60H1/00792

Abstract: An integrated valve module includes a body including first flow channel that includes a first branch channel; an interface disposed on the body and including an indoor condenser outlet interface, an outdoor heat exchanger inlet interface, and a first interface of a motor heat exchanger; and a valve set disposed on the body and including a first electric valve and a second electric valve. A first port of the first electric valve is connected with the indoor condenser outlet interface. A second port of the second electric valve is connected with the outdoor heat exchanger inlet interface, and a third port thereof is connected with the first interface of the motor heat exchanger. A first opening communicates with a second port and a third port of the first electric valve, and a second opening communicates with a first port of the second electric valve, are disposed on the first branch channel.

公开(公告)号：US11876396B2

公开(公告)日：2024-01-16

申请号：US17416745

申请日：2019-12-17

Applicant: BYD COMPANY LIMITED

Inventor： Changjiu Liu ,  Hua Pan ,  Ronghua Ning ,  Yang Liu ,  Ning Yang

IPC: H02J7/00 ,  H02J7/04 ,  H02P27/08 ,  B60L50/51 ,  B60L15/20

CPC classification number: H02J7/007182 ,  H02J7/04 ,  H02P27/08 ,  B60L15/20 ,  B60L50/51

Abstract: A motor control circuit includes a first switch module, a three-phase inverter, and a control module, where a power supply module, the first switch module, the three-phase inverter, and a three-phase alternating current motor form a current loop, the three-phase alternating current motor inputs or outputs a current by using a wire N extending from a connection point of three phase coils, and the control module controls the three-phase inverter, so that the motor control circuit receives a voltage of the power supply module and outputs a direct current. A wire N extends from the three-phase alternating current motor, and further forms different charging loops with the three-phase inverter, the three-phase alternating current motor, and the power battery.

公开(公告)号：US20240014480A1

公开(公告)日：2024-01-11

申请号：US18373251

申请日：2023-09-26

Applicant: BYD COMPANY LIMITED

Inventor： Bing WANG ,  Wei LIU ,  Ke ZHANG ,  Haibo HU

IPC: H01M50/169 ,  H01M50/103 ,  H01M50/119 ,  H01M50/159 ,  H01M50/15

CPC classification number: H01M50/169 ,  H01M50/103 ,  H01M50/119 ,  H01M50/159 ,  H01M50/15

Abstract: A housing is configured to accommodate an electrode core. The housing includes a peripheral wall and a first cover plate. The peripheral wall includes a first opening. An edge portion is disposed on a periphery of the first cover plate, and the edge portion is configured to melt to form a melted edge around the periphery of the first cover plate. The first cover plate is configured to be bonded with the peripheral wall through the melted edge to close the first opening.

公开(公告)号：US20240014471A1

公开(公告)日：2024-01-11

申请号：US18472532

申请日：2023-09-22

Applicant: BYD COMPANY LIMITED

Inventor： Guosheng TANG ,  Liwei LIANG ,  Shumin HU ,  Jian ZHANG ,  Jinzhong OUYANG

IPC: H01M50/103 ,  H01M50/15

CPC classification number: H01M50/103 ,  H01M50/15 ,  H01M50/169

Abstract: A battery housing includes a first housing and a second housing. An accommodating space with an opening is defined by a bottom plate, two first side plates and two second side plates of the first housing. The second housing includes a body, and two first extending plates and two second extending plates arranged on a peripheral edge of the body. An avoiding region is formed on one second side plate. In a first direction, a width of the second extending plate corresponding to the second side plate provided with the avoiding region is smaller than or equal to a width of the avoiding region, and additionally, a width of the two first extending plates is greater than a width of the second extending plate. The second housing covers the opening of the first housing, and the two first extending plates and the two first side plates are fixedly connected.