公开(公告)号：US20240001776A1

公开(公告)日：2024-01-04

申请号：US18361652

申请日：2023-07-28

Applicant: Huawei Digital Power Technologies Co., Ltd.

Inventor： Chaojie Shi ,  Chaoqiang Wu ,  Shankai Chen

IPC: B60L50/51 ,  H02P27/06 ,  H02P21/22 ,  B60L15/00

CPC classification number: B60L50/51 ,  H02P27/06 ,  B60L2210/42 ,  B60L15/007 ,  H02P21/22

Abstract: This application discloses a motor control unit, a power train, a control method, and an electric vehicle, and relates to the field of electric vehicle technologies. An input end of the motor control unit connects to a power battery pack, an output end of the motor control unit connects to three phases of motor windings of a motor, and the motor control unit includes an inverter circuit and a controller. The controller is configured to control the inverter circuit to simultaneously output currents to the three phases of motor windings, and control the currents input to all the phases of motor windings to sequentially reach a preset current.

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：US12095319B2

公开(公告)日：2024-09-17

申请号：US17878637

申请日：2022-08-01

Applicant: HUAWEI DIGITAL POWER TECHNOLOGIES CO., LTD.

Inventor： Chaojie Shi ,  Chaoqiang Wu ,  Jinhua Chen

IPC: H02K21/04

CPC classification number: H02K21/046

Abstract: The present disclosure describes a motor stator, in which a flux winding is bent into a wave shape, and may be divided into a plurality of first parts, a plurality of second parts, and a plurality of third parts based on winding positions on a stator core. In a process of embedding flux windings into stator slots on the stator core, the flux windings may be directly sunk into the stator slots one by one, so that the second part is embedded into the stator slot, the first part is located on an outer surface of the stator core, and the third part is located on an inner surface of the stator core.

公开(公告)号：US20240106288A1

公开(公告)日：2024-03-28

申请号：US18474711

申请日：2023-09-26

Applicant: Huawei Digital Power Technologies Co., Ltd.

Inventor： Jining Hou ,  Chaojie Shi ,  Hua Lan

IPC: H02K1/2798 ,  H02K7/00 ,  H02K7/08 ,  H02K16/02

CPC classification number: H02K1/2798 ,  H02K7/003 ,  H02K7/086 ,  H02K16/02

Abstract: An axial flux motor includes a motor shaft, a double-row angular contact ball bearing, and a stator. The double-row angular contact ball bearing is sleeved on the motor shaft and is fixedly connected to the motor shaft through a bearing inner ring of the double-row angular contact ball bearing. The stator is sleeved on the motor shaft through the double-row angular contact ball bearing, and the stator is fixedly connected to a bearing outer ring, so that the motor shaft can rotate relative to the stator. In this application, the double-row angular contact ball bearing is used in the axial motor, the double-row angular contact ball bearing can bear axial force generated through interaction between the stator and a rotor.

公开(公告)号：US20240088731A1

公开(公告)日：2024-03-14

申请号：US18463608

申请日：2023-09-08

Applicant: Huawei Digital Power Technologies Co., Ltd.

Inventor： Zhao Zhou ,  Chaojie Shi ,  Chuanping Liu

IPC: H02K1/18 ,  H02K7/116 ,  H02K21/24

CPC classification number: H02K1/182 ,  H02K7/116 ,  H02K21/24

Abstract: An axial motor includes a fastening plate and a plurality of magnetic cores. The plurality of magnetic cores are spaced apart around the inner shaft sleeve. A magnetic core end part of the magnetic core covers a part of an end surface of a magnetic core winding part of the magnetic core, and an end surface, of the magnetic core winding part, that is not covered by the magnetic core end part forms a step surface. The fastening plate is fastened to an end surface of the inner shaft sleeve. The fastening plate includes an accommodating groove that is concave relative to the end surface of the inner shaft sleeve. A plurality of magnetic core accommodating holes are provided in the accommodating groove. The plurality of magnetic core accommodating holes respectively correspond to magnetic core end parts that accommodate the plurality of magnetic cores.

公开(公告)号：US20230406156A1

公开(公告)日：2023-12-21

申请号：US18460062

申请日：2023-09-01

Applicant: Huawei Digital Power Technologies Co., Ltd.

Inventor： Chaoqiang Wu ,  Mengxuan Lin ,  Chaojie Shi

IPC: B60L58/27 ,  H02P29/62 ,  H01M10/615 ,  H01M10/625 ,  H01M10/656

CPC classification number: B60L58/27 ,  H02P29/62 ,  H01M10/615 ,  H01M10/625 ,  H01M10/656 ,  H02P2207/01 ,  H01M2220/20 ,  B60L2250/00 ,  B60L2240/545

Abstract: A method for processing an asynchronous motor includes obtaining indication trigger information; and injecting, in response to the indication trigger information, a first current into a stator winding of the asynchronous motor, where the first current is for generating heat without a torque for the asynchronous motor, and the heat heats a battery pack through a heat exchanger.