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    BATTERY ENERGY PROCESSING DEVICE AND METHOD, AND VEHICLE
    2.
    发明公开
    BATTERY ENERGY PROCESSING DEVICE AND METHOD, AND VEHICLE 审中-公开

    公开(公告)号：US20230238603A1

    公开(公告)日：2023-07-27

    申请号：US18008091

    申请日：2021-06-04

    Applicant: BYD COMPANY LIMITED

    Inventor： Yubo LIAN ,  Heping LING ,  Hua PAN ,  Lei YAN ,  Feiyue XIE

    IPC: H01M10/637 ,  B60L53/24 ,  B60L58/27 ,  H02P27/06 ,  H01M10/44

    CPC classification number: H01M10/637 ,  B60L53/24 ,  B60L58/27 ,  H02P27/06 ,  H01M10/44

    Abstract: The present disclosure relates to a battery energy processing device and method and a vehicle. The battery energy processing device includes: a bridge arm converter, having a first bus terminal connected with a positive electrode of a battery and a second bus terminal connected with a negative electrode of the battery; a motor winding, having a first end connected with a midpoint of the bridge arm converter; an energy storage device, respectively connected with a second end of the motor winding and the second bus terminal; and a controller, configured to control, in a first preset state, the bridge arm converter to charge and discharge the battery, so as to realize heating of the battery. In this way, the charging and discharging of the battery can be controlled, and internal resistance of the battery causes the battery to generate a large amount of heat, which causes a temperature rise of the battery, thereby realizing the heating of the battery.

    ENERGY CONVERSION DEVICE AND VEHICLE
    4.
    发明申请
    ENERGY CONVERSION DEVICE AND VEHICLE 有权

    公开(公告)号：US20230097060A1

    公开(公告)日：2023-03-30

    申请号：US18074233

    申请日：2022-12-02

    Applicant: BYD COMPANY LIMITED

    Inventor： Heping LING ,  Lei YAN ,  Yong XIONG ,  Chen HONG ,  Junwei ZHANG

    IPC: H02P29/68 ,  H02P27/06

    Abstract: An energy conversion device is provided, including: a first electrical motor control circuit, where the first electrical motor control circuit is connected with a battery pack; a second electrical motor control circuit, where the second electrical motor control circuit is connected with the first electrical motor control circuit in parallel; and a controller, configured to: when operating in a first control mode, control the first electrical motor control circuit to charge and discharge the battery pack to heat the battery pack, and control the second electrical motor control circuit to output torque.

    ENERGY CONVERSION APPARATUS AND VEHICLE
    5.
    发明申请
    ENERGY CONVERSION APPARATUS AND VEHICLE 有权

    公开(公告)号：US20220355674A1

    公开(公告)日：2022-11-10

    申请号：US17622626

    申请日：2020-06-24

    Applicant: BYD COMPANY LIMITED

    Inventor： Lei YAN ,  Jicheng LI ,  Ye LEI ,  Feiyue XIE ,  Sijia ZHENG

    IPC: B60L15/20 ,  B60L53/24

    Abstract: An energy conversion apparatus and a vehicle are provided. The energy conversion apparatus includes a motor coil of a motor (101), a bridge arm converter (102), a bus capacitor (103) connected to the bridge arm converter (102) in parallel, and a controller (104) connected to the bridge arm converter (102). When the energy conversion apparatus is connected to an external power supply, according to to-be-driven power of the motor and to-be-charged power of an external battery (105), the controller (104) controls the bridge arm converter (102) to cause electrical energy of the external power supply to flow to a drive-charging circuit, and adjusts a current of the drive-charging circuit, to cause the external power supply to drive the motor to output drive power and charge the external battery (105) at the same time.

    BATTERY HEATING SYSTEM AND ELECTRIC VEHICLE
    7.
    发明申请
    BATTERY HEATING SYSTEM AND ELECTRIC VEHICLE 有权

    公开(公告)号：US20250046904A1

    公开(公告)日：2025-02-06

    申请号：US18924851

    申请日：2024-10-23

    Applicant: BYD COMPANY LIMITED

    Inventor： Heping LING ,  Lei YAN ,  Wen GAO ,  Jinyue XIE

    IPC: H01M10/615 ,  H01M10/625 ,  H01M10/637

    Abstract: A battery heating system includes: a power battery pack including a first battery assembly and a second battery assembly connected to each other at a connection point, buck-boost inverters connected in parallel to form a first bus terminal and a second bus terminal, and a controller connected to a control terminal of the inverter bridge and configured to control self-heating of the first battery assembly and the second battery assembly. A center line is led out at the connection point. Each buck-boost inverters includes an inverter bridge and an inductor. The first bus terminal is connected to a positive electrode of the power battery pack. The second bus terminal is connected to a negative electrode of the power battery pack. A first terminal of the inductor is connected to a midpoint of the inverter bridge. A second terminal of the inductor is connected to the center line.

    INTEGRATED THERMAL MANAGEMENT SYSTEM AND VEHICLE
    8.
    发明申请
    INTEGRATED THERMAL MANAGEMENT SYSTEM AND VEHICLE 有权

    公开(公告)号：US20240375547A1

    公开(公告)日：2024-11-14

    申请号：US18782925

    申请日：2024-07-24

    Applicant: BYD COMPANY LIMITED

    Inventor： Yubo LIAN ,  Heping LING ,  Gan SONG ,  Lei YAN ,  Yong XIONG

    IPC: B60L58/25 ,  B60H1/00 ,  B60H1/32 ,  B60L58/26 ,  B60L58/27 ,  H01M10/613 ,  H01M10/615 ,  H01M10/625 ,  H01M10/633 ,  H01M10/657 ,  H01M10/663 ,  H02M7/5387 ,  H02P27/00

    Abstract: An integrated heat management system includes: a heat pump subsystem, configured to exchange heat with a passenger compartment and a battery of a vehicle; a high-pressure cooling subsystem, configured to exchange heat with a high-pressure system of the vehicle and the heat pump subsystem; a battery self-heating subsystem, configured to heat the battery through charging and discharging; an air heating subsystem, configured to exchange heat with the passenger compartment; the heat pump subsystem including a compressor and a control valve, one end of the control valve being in communication with an exhaust port of the compressor, and an other end of the control valve being in communication with an air return port of the compressor directly or through a gas-liquid separator; and a control subsystem, configured to control the control valve to be in communication with the exhaust port and the air return port of the compressor.

    BATTERY ENERGY PROCESSING APPARATUS AND METHOD, AND VEHICLE
    9.
    发明申请
    BATTERY ENERGY PROCESSING APPARATUS AND METHOD, AND VEHICLE 有权

    公开(公告)号：US20230097027A1

    公开(公告)日：2023-03-30

    申请号：US18074448

    申请日：2022-12-02

    Applicant: BYD COMPANY LIMITED

    Inventor： Yubo LIAN ,  Heping LING ,  Lei YAN ,  Yong XIONG ,  Wen GAO

    IPC: H01M10/63 ,  H01M10/615 ,  H01M10/44 ,  H02M7/483

    Abstract: The present disclosure belongs to the field of vehicles, and relates to a battery energy processing device and method and a vehicle, which can charge batteries during self-heating of the batteries. The battery energy processing device includes: an energy exchange interface; a first circuit, wherein a first end of the first circuit is connected with the energy exchange interface, and a second end of the first circuit is connected with a battery; a second circuit, wherein a first end of the second circuit is connected with the battery; an energy storage device, connected with a second end of the second circuit; and a controller, configured to: in a first preset state, control the second circuit to charge and discharge the battery to heat the battery, and control the first circuit to receive energy from the energy exchange interface and output the energy to the battery to charge the battery.

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