公开(公告)号：US20240213841A1

公开(公告)日：2024-06-27

申请号：US18592592

申请日：2024-03-01

Applicant: Huawei Digital Power Technologies Co., Ltd.

Inventor： Hua LAN ,  Xian LUO ,  Mengxuan LIN

IPC: H02K3/28

CPC classification number: H02K3/28

Abstract: A motor and a vehicle. The motor includes a stator iron core and a flat wire winding structure. Each stator slot has n layers of the flat wire winding structure. Each phase of the flat wire winding structure includes a first part and a second part, the first part occupies a layers in the stator slot, and the second part occupies b layers in the stator slot, and a≠b. In addition, in each pole of each phase of the flat wire winding structure, a stator slot wound with the first part and a stator slot wound with the second part are staggered by y1 slots. The pitch y is less than a pole pitch y0. In this way, the flat wire winding structure is a short-pitch winding, and further, when the motor runs, good torque fluctuation suppression effect is achieved.

公开(公告)号：US20240017630A1

公开(公告)日：2024-01-18

申请号：US18352401

申请日：2023-07-14

Applicant: Huawei Digital Power Technologies Co., Ltd.

Inventor： Ying LI ,  Xian LUO

IPC: B60L53/24 ,  B60L50/60

CPC classification number: B60L53/24 ,  B60L50/60

Abstract: A powertrain, a charging control method, and an electric vehicle. The powertrain includes a motor control unit and a motor. The motor control unit includes three bridge arms and a controller. A first end of a direct current power supply is coupled to one end of each bridge arm and a first end of the power battery. A second end of the power battery is coupled to the other end of each bridge arm. A midpoint of each bridge arm is coupled to one end of a motor winding. The other end of each motor winding is coupled to a second end of the direct current power supply. Two bridge arms of each bridge arm are turned on or off based on a first PWM signal and a second PWM signal. The first PWM signal and the second PWM signal are interleaved.