公开(公告)号：US20250042387A1

公开(公告)日：2025-02-06

申请号：US18793334

申请日：2024-08-02

Applicant: Huawei Digital Power Technologies Co., Ltd.

Inventor： Lizhou Yang ,  Wenda Li ,  Jie Tang

IPC: B60W20/15

Abstract: This application provides a hybrid powertrain. The hybrid powertrain includes a generator, a motor, a dual-motor controller, and a switch module. The dual-motor controller includes a generator power circuit and a motor power circuit. A running status of the switch module includes a first state and a second state. If the switch module is in the first state, the switch module is configured to connect to an end of a power battery and a center tap of a multiphase winding of the motor. If the switch module is in the second state, the switch module is configured to connect to an end of a power battery and an end of a plurality of switching transistor bridge arms of the motor power circuit. According to the hybrid powertrain and the control apparatus provided in this application entire vehicle endurance and power performance of the electric vehicle can be improved.

公开(公告)号：US20240063747A1

公开(公告)日：2024-02-22

申请号：US18496625

申请日：2023-10-27

Applicant: Huawei Digital Power Technologies Co., Ltd.

Inventor： Chunhong Lu ,  Jie Tang

IPC: H02P27/14 ,  B60L15/02 ,  B60L15/20

CPC classification number: H02P27/14 ,  B60L15/02 ,  B60L15/2045

Abstract: A motor driving apparatus, a motor system, and an electric vehicle are described that improve running efficiency of a motor and avoid damaging an inverter. The motor driving apparatus includes a three-level inverter, a motor parameter obtaining circuit, and a control circuit. The three-level inverter is configured to invert a direct current provided by the first power supply into an alternating current, and provide the alternating current for the motor; the motor parameter obtaining circuit is configured to be separately coupled to the motor and the control circuit, and is configured to: obtain a motor working condition signal of the motor, and provide the motor working condition signal for the control circuit; and the control circuit is configured to control the three-level inverter in the target working mode so that a midpoint voltage of the three-level inverter is less than a first voltage threshold.

公开(公告)号：US20250042263A1

公开(公告)日：2025-02-06

申请号：US18793104

申请日：2024-08-02

Applicant: Huawei Digital Power Technologies Co., Ltd.

Inventor： Lizhou Yang ,  Wenda Li ,  Jie Tang

IPC: B60L15/20 ,  B60L7/12

Abstract: This application provides a motor controller for an electric vehicle. The motor controller includes a control circuit and an inverter circuit. The control circuit is configured to: in response to that the drive motor rotates with a pair of wheels of the electric vehicle, control a switch module to connect a center tap of the multiphase winding to the other end of the power battery, and control the inverter circuit to adjust a voltage at both ends of the bus capacitor. The bridge arms of the inverter circuit of the motor controller provided in this application and the winding of the drive motor form a voltage conversion circuit to adjust the voltage at both ends of the bus capacitor, to improve power performance and vehicle endurance of the electric vehicle.