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    BATTERY ENERGY PROCESSING DEVICE AND METHOD, AND VEHICLE
    51.
    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.

    COOPERATIVE CONTROL METHOD AND APPARATUS FOR ENERGY CONVERSION APPARATUS, STORAGE MEDIUM, AND VEHICLE
    52.
    发明申请
    COOPERATIVE CONTROL METHOD AND APPARATUS FOR ENERGY CONVERSION APPARATUS, STORAGE MEDIUM, AND VEHICLE 有权

    公开(公告)号：US20220329184A1

    公开(公告)日：2022-10-13

    申请号：US17764038

    申请日：2020-08-18

    Applicant: BYD COMPANY LIMITED

    Inventor： Yubo LIAN ,  Heping LING ,  Jicheng LI ,  Hua PAN ,  Li MOU

    IPC: H02P21/14 ,  B60L58/10

    Abstract: A cooperative control method for an energy conversion apparatus is disclosed. The cooperative control method includes: acquiring a target heating power, a target driving power, and a target charging and discharging power; acquiring a first heating power of a motor coil according to the target charging and discharging power; acquiring a second heating power of the motor coil according to the target driving power; adjusting a first quadrature axis current and a first direct axis current to a target quadrature axis current and a target direct axis current when a difference between a sum of the first heating power and the second heating power and the target heating power is not within a preset range, to cause the difference between the sum of the first heating power and the second heating power and the target heating power to be within the preset range; and acquiring a sampling current value on each phase coil and a motor rotor position, and calculating a duty cycle of each phase bridge arm in a reversible pulse width modulation (PWM) rectifier.

    ELECTRIC MOTOR DRIVING APPARATUS, CONTROL METHOD, VEHICLE, AND READABLE STORAGE MEDIUM
    53.
    发明申请
    ELECTRIC MOTOR DRIVING APPARATUS, CONTROL METHOD, VEHICLE, AND READABLE STORAGE MEDIUM 有权

    公开(公告)号：US20220085746A1

    公开(公告)日：2022-03-17

    申请号：US17416853

    申请日：2019-12-17

    Applicant: BYD COMPANY LIMITED

    Inventor： Yubo LIAN ,  Heping LING ,  Hua PAN ,  Feiyue XIE ,  Lijun ZHANG

    IPC: H02P27/08 ,  H02P29/62 ,  H02J7/00

    Abstract: The present disclosure discloses a motor drive apparatus, a method for controlling the same, a vehicle, and a readable storage medium, where the control method includes: obtaining a required heating power and a required charging power; and adjusting a current value and direction of each phase current of a three-phase motor based on the required heating power, the required charging power, and an output of the motor at a zero torque, to simultaneously control a process of charging a power battery by a power supply module, the torque of the three-phase motor at a zero output, and a three-phase inverter and the three-phase motor to heat a heat exchange medium flowing through at least one of the three-phase inverter or the three-phase motor.

    VEHICLE AND POWER BATTERY HEATING APPARATUS AND METHOD THEREFOR
    54.
    发明申请
    VEHICLE AND POWER BATTERY HEATING APPARATUS AND METHOD THEREFOR 有权

    公开(公告)号：US20220080858A1

    公开(公告)日：2022-03-17

    申请号：US17416884

    申请日：2019-12-20

    Applicant: BYD COMPANY LIMITED

    Inventor： Yubo LIAN ,  Heping LING ,  Hua PAN ,  Yuxin ZHANG ,  Hao CHEN

    IPC: B60L58/27 ,  B60L3/00

    Abstract: This application provides a vehicle and a power battery heating apparatus and method thereof. In the power battery heating method, when a current temperature value of a power battery is lower than a preset temperature value, and a heating condition of the power battery meets a preset condition, a three-phase inverter is controlled to cause a three-phase alternating current motor to generate heat according to heating energy to heat a coolant flowing through the power battery. A preset quadrature-axis current that causes a torque value outputted by the motor to be an appropriate value is obtained, and a corresponding preset direct-axis current is obtained according to heating power of the power battery, to control, according to the preset direct-axis current and the preset quadrature-axis current, the three-phase inverter to adjust a phase current of the three-phase alternating current motor in the heating process, so that electromagnetic torque with a relatively small torque value is outputted at a motor shaft. The electromagnetic torque cannot cause the vehicle to move, also cannot cause a damage to parts and components of a transmission mechanism of the vehicle. It only causes the motor output shaft to output a pre-tightening force to the transmission mechanism, thereby eliminating an engagement gap and effectively avoiding jitter of the vehicle.

    POWER-DRIVEN SYSTEM FOR VEHICLE AND VEHICLE
    55.
    发明申请
    POWER-DRIVEN SYSTEM FOR VEHICLE AND VEHICLE 审中-公开

    公开(公告)号：US20200023733A1

    公开(公告)日：2020-01-23

    申请号：US16335843

    申请日：2017-08-04

    Applicant: BYD COMPANY LIMITED

    Inventor： Yubo LIAN ,  Heping LING ,  Zhen ZHAI ,  Fei WU ,  Youbin XU

    IPC: B60K17/02 ,  B60K17/08

    Abstract: The present disclosure discloses a power-drive system for a vehicle and a vehicle. The power-drive system comprises: an engine; a plurality of input shafts; a plurality of output shafts; a first clutch device, arranged between the engine and the plurality of input shafts, so that the engine selectively engages with at least one of the plurality of input shafts; a motor power shaft, a motor power shaft first gear linking with a gear-position driving gear in the same direction being freely sleeved on the motor power shaft, and the plurality of output shafts and the motor power shaft linking with a differential of the vehicle; a first motor generator, configured to link with the motor power shaft; and a second motor generator, wherein the second motor generator and the engine are located on an input side of the first clutch device, the plurality of input shafts is located on an output side of the first clutch device, and the second motor generator is configured to carry out stationary power generation using at least part of power of the engine when the vehicle is parked.

    POWER-DRIVEN SYSTEM FOR VEHICLE AND VEHICLE
    56.
    发明申请
    POWER-DRIVEN SYSTEM FOR VEHICLE AND VEHICLE 审中-公开

    公开(公告)号：US20200016970A1

    公开(公告)日：2020-01-16

    申请号：US16335756

    申请日：2017-08-03

    Applicant: BYD COMPANY LIMITED

    Inventor： Yubo LIAN ,  Heping LING ,  Zhen ZHAI ,  Fei WU ,  Youbin XU

    IPC: B60K6/442 ,  B60K6/26 ,  B60K6/547 ,  B60K6/38 ,  B60K6/36 ,  F16H3/00 ,  F16H3/08 ,  F16H3/093 ,  B60L1/00

    Abstract: The present disclosure provides a power-drive system for a vehicle and a vehicle. The power-drive system comprises: an engine; a plurality of input shafts; a plurality of output shafts, the plurality of output shafts linking with a differential of the vehicle; a first clutch device, arranged between the engine and the plurality of input shafts, so that the engine selectively engages with at least one of the plurality of input shafts; a first motor generator, configured to link with the differential of the vehicle; and a second motor generator, wherein the second motor generator and the engine are located on an input side of the first clutch device, the plurality of input shafts is located on an output side of the first clutch device, and the second motor generator is configured to carry out stationary power generation using at least part of power of the engine when the vehicle is parked.

    POWER DRIVE SYSTEM AND VEHICLE
    57.
    发明申请
    POWER DRIVE SYSTEM AND VEHICLE 审中-公开

    公开(公告)号：US20190322165A1

    公开(公告)日：2019-10-24

    申请号：US16314008

    申请日：2017-05-11

    Applicant: BYD COMPANY LIMITED

    Inventor： Yubo LIAN ,  Heping LING ,  Zhen ZHAI ,  Youbin XU

    IPC: B60K6/36 ,  B60K17/16

    Abstract: The present disclosure discloses a power drive system and a vehicle, the power drive system including: an engine; a plurality of input shafts, the engine being configured to be selectively engaged with at least one of the plurality of input shafts each provided with a gear driving gear; a plurality of output shafts each provided with a gear driven gear, a plurality of gear driven gears being meshed with a plurality of gear driving gears respectively; a reverse shaft provided with a first gear for the reverse shaft, the first gear for the reverse shaft being meshed with one of the gear driving gears; a reverse output gear linked with the reverse shaft; and a first electric generator, the first electric generator and the plurality of output shafts linked with a differential power input gear of the vehicle respectively.

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