公开(公告)号：US20240283385A1

公开(公告)日：2024-08-22

申请号：US18650766

申请日：2024-04-30

Applicant: Huawei Digital Power Technologies Co., Ltd.

Inventor： Ying Li ,  Chaojie Shi ,  Ningbo Feng ,  Zhenxing Chen ,  Xian Luo

IPC: H02P27/08 ,  B60L50/60 ,  B60L58/12 ,  H02J7/24 ,  H02P27/12

CPC classification number: H02P27/085 ,  B60L50/60 ,  B60L58/12 ,  H02J7/2434 ,  H02P27/12 ,  B60L2240/12

Abstract: This application provides a motor drive system, a vehicle, a charging method, a control apparatus, and a medium, to improve motor performance in a vehicle charging process. The motor drive system may include a plurality of bridge arms, a motor, and a control module. The motor includes a plurality of windings. A second end of a first switch in a first bridge arm in the plurality of bridge arms is coupled to a first electrode of a power supply, and a second electrode of the power supply is coupled to a power battery. The control module is configured to: obtain a rotor position angle of the motor; and control a bridge arm other than the first bridge arm in the plurality of bridge arms in a control manner corresponding to the rotor position angle, to enable the power supply to charge the power battery.

公开(公告)号：US20240246433A1

公开(公告)日：2024-07-25

申请号：US18605577

申请日：2024-03-14

Applicant: Huawei Digital Power Technologies Co., Ltd.

Inventor： Wei Zhang ,  Ningbo Feng ,  Zhaoxue Cui

IPC: B60L53/22 ,  B60H1/32 ,  B60R16/023 ,  H02J7/00 ,  H02J7/02

CPC classification number: B60L53/22 ,  B60R16/023 ,  H02J7/00047 ,  H02J7/02 ,  B60H2001/3292 ,  B60L2210/10 ,  B60L2210/30 ,  B60L2210/40 ,  H02J2207/20

Abstract: A charging and discharging apparatus and a vehicle, to reduce complexity of a structural layout of the vehicle and improve integration of the vehicle. The charging and discharging apparatus includes: an AC/DC conversion circuit configured to convert an input first alternating current into a first direct current; a DC/DC conversion circuit configured to rectify the first direct current to output a second direct current used to charge a power battery and a third direct current used to charge a low-voltage battery; a DC/AC conversion circuit configured to convert a fourth direct current output by the power battery into a second alternating current used to supply power to a power-consuming device; and a controller configured to control output voltages and/or output currents of the AC/DC conversion circuit, the DC/DC conversion circuit, and the DC/AC conversion circuit.

公开(公告)号：US20240383348A1

公开(公告)日：2024-11-21

申请号：US18789500

申请日：2024-07-30

Applicant: Huawei Digital Power Technologies Co., Ltd.

Inventor： Ningbo Feng ,  Ying Li ,  Maojie Ren

IPC: B60L53/122 ,  B60L53/24 ,  H02J7/00

Abstract: This disclosure provides a control method and apparatus for a power supply circuit, and an electric vehicle. The power supply circuit includes a first switch, three bridge arms, and a motor. Each bridge arm includes a first switching transistor and a second switching transistor. The control method is: when detecting that the direct current power supply stops supplying power, controlling the first switch to be turned off; after the first switch is turned off, controlling a second switching transistor of a first bridge arm, a first switching transistor of a second bridge arm among the bridge arms, and a first switching transistor of a third bridge arm among the bridge arms to be turned on, and providing, by the power battery, a first current to the motor, where the first current controls a torque of the motor. This disclosure is implemented to improve NVH characteristics of the electric vehicle.

公开(公告)号：US11962248B2

公开(公告)日：2024-04-16

申请号：US18332903

申请日：2023-06-12

Applicant: Huawei Digital Power Technologies Co., Ltd.

Inventor： Wei Zhang ,  Zhaoxue Cui ,  Ningbo Feng

IPC: H02M3/335 ,  B60L50/60 ,  B60R16/033 ,  H02J7/00 ,  H02J7/02 ,  H02M7/219

CPC classification number: H02M3/33573 ,  B60L50/60 ,  B60R16/033 ,  H02J7/0013 ,  H02J7/02 ,  H02M3/33576 ,  H02M7/219 ,  B60L2210/10 ,  H02J2207/20

Abstract: An energy conversion system, an energy conversion method, and a power system. The energy conversion system may include a bridge arm conversion module, a direct current (DC)/DC conversion module, a motor, a bus capacitor, and a control module. The control module may be configured to control a bridge arm switch action in the bridge arm conversion module, drive the motor based on an alternating current input voltage supplied by a power supply, form a bus voltage at two ends of the bus capacitor, and control the DC/DC conversion module to charge a traction battery and an auxiliary battery based on the bus voltage. The traction battery and the auxiliary battery can be charged while the motor is driven, thereby achieving higher energy conversion efficiency, low costs, and strong applicability.

公开(公告)号：US20240266966A1

公开(公告)日：2024-08-08

申请号：US18415297

申请日：2024-01-17

Applicant: Huawei Digital Power Technologies Co., Ltd.

Inventor： Lin Du ,  Ping Li ,  Ningbo Feng ,  Tao Liang ,  Yuting Liu

IPC: H02M7/00 ,  B60L50/60 ,  B60L53/22 ,  H02M1/42 ,  H02M1/44 ,  H02M3/00 ,  H05K1/14 ,  H05K7/20

CPC classification number: H02M7/003 ,  B60L50/60 ,  B60L53/22 ,  H02M1/4266 ,  H02M1/44 ,  H02M3/003 ,  H05K1/14 ,  H05K7/209 ,  B60L2210/10 ,  B60L2210/30

Abstract: In accordance with an embodiment an apparatus, includes: a power conversion circuit having: a power port configured to receive power from an external power supply, a first direct current port configured to output a first direct current, a second direct current port configured to output a second direct current, wherein a voltage of the second direct current port is configured to be higher than a voltage of the first direct current port, an upper-layer printed circuit board (PCB) electrically connected to the second direct current port, and a lower-layer PCB electrically connected to the first direct current port and to the power port; a bottom housing; and a heat sink, wherein the lower-layer PCB, the upper-layer PCB, and the heat sink are sequentially stacked in and fastened to the bottom housing.

公开(公告)号：US12047025B2

公开(公告)日：2024-07-23

申请号：US18149261

申请日：2023-01-03

Applicant: Huawei Digital Power Technologies Co., Ltd.

Inventor： Yue Chen ,  Xueliang Zhang ,  Ningbo Feng

IPC: H02P27/08 ,  H02M3/00 ,  H02M3/335

CPC classification number: H02P27/08 ,  H02M3/01 ,  H02M3/335

Abstract: An electric drive system is connected to a power battery pack to drive a motor, the motor includes an exciting winding, and the electric drive system includes a bus, a three-level inverter circuit, an electric excitation circuit, and a controller. The bus includes a positive bus and a negative bus. The three-level inverter circuit includes a first bus capacitor and a second bus capacitor. The first bus capacitor is connected between the positive bus and a bus midpoint, and the second bus capacitor is connected between the negative bus and the bus midpoint. A first input terminal of the electric excitation circuit is connected in parallel to the first bus capacitor, a second input terminal of the electric excitation circuit is connected in parallel to the second bus capacitor, and an output terminal of the electric excitation circuit is connected to the exciting winding of the motor.

公开(公告)号：US11699957B2

公开(公告)日：2023-07-11

申请号：US17826482

申请日：2022-05-27

Applicant: Huawei Digital Power Technologies Co., Ltd.

Inventor： Wei Zhang ,  Zhaoxue Cui ,  Ningbo Feng

IPC: H01F3/14 ,  H02M3/335 ,  B60L50/60 ,  B60R16/033 ,  H02J7/00 ,  H02J7/02 ,  H02M7/219

CPC classification number: H02M3/33573 ,  B60L50/60 ,  B60R16/033 ,  H02J7/0013 ,  H02J7/02 ,  H02M3/33576 ,  H02M7/219 ,  B60L2210/10 ,  H02J2207/20

Abstract: An energy conversion system, an energy conversion method, and a power system. The energy conversion system may include a bridge arm conversion module, a direct current to direct current (DC/DC) conversion module, a motor, a bus capacitor, and a control module. The control module may be configured to control a bridge arm switch action in the bridge arm conversion module, drive the motor based on an alternating current input voltage supplied by a power supply, form a bus voltage at two ends of the bus capacitor, and control the DC/DC conversion module to charge a traction battery and an auxiliary battery based on the bus voltage. The traction battery and the auxiliary battery can be charged while the motor is driven, thereby achieving higher energy conversion efficiency, low costs, and strong applicability.

公开(公告)号：US20250058652A1

公开(公告)日：2025-02-20

申请号：US18938884

申请日：2024-11-06

Applicant: Huawei Digital Power Technologies Co., Ltd.

Inventor： Xuejuan Kong ,  Ningbo Feng ,  Xing Zhang

IPC: B60L50/51 ,  B60L50/60 ,  B60R16/023 ,  H02K11/33

Abstract: A drive apparatus and an electric vehicle with a vehicle regulation drive chip are disclosed. The drive apparatus includes a control chip, a watchdog chip, a drive logic circuit, and a plurality of drive chips. The control chip is connected to the watchdog chip and the drive logic circuit, and is configured to determine a pulse width modulation PWM signal of each switch, output the PWM and a first signalto the drive logic circuit. The watchdog chip is connected to the drive logic circuit, and is configured to send a second signal. The first and the second pin of the drive chip are connected to the drive logic circuit, whenthe third pin is configured to connect to a corresponding switch, and adjust a drive signal of the connected switch based on the received drive control signal and the received enable signal that generated by the drive logic circuit.

公开(公告)号：US11888417B2

公开(公告)日：2024-01-30

申请号：US17710726

申请日：2022-03-31

Applicant: Huawei Digital Power Technologies Co., Ltd.

Inventor： Zhaoxue Cui ,  Wei Zhang ,  Ningbo Feng

IPC: H02P27/04 ,  H02P27/06 ,  H03K3/037

CPC classification number: H02P27/06 ,  H03K3/037

Abstract: An energy conversion apparatus, a motor, a power system, and a vehicle are provided. The energy conversion apparatus may integrate a motor drive function by using a three-phase bridge arm converter and a motor winding, and integrate an alternating current charging function by using a two-phase two-bridge-arm converter and a transformer. In this way, the energy conversion apparatus can integrate the charging function and the motor drive function. When the energy conversion apparatus is installed on an electric vehicle, a vehicle integration level can be increased, a structure layout of the electric vehicle can be simplified, and costs and a volume of the electric vehicle can be reduced.