公开(公告)号：US11695290B2

公开(公告)日：2023-07-04

申请号：US17483475

申请日：2021-09-23

Applicant: Huawei Digital Power Technologies Co., Ltd.

Inventor： Jianhua Peng ,  Xingjie Wang ,  Xuejuan Kong

IPC: H02M3/04 ,  H02J7/00 ,  H02M7/04

CPC classification number: H02J7/0068 ,  H02M3/04 ,  H02M7/04

Abstract: Embodiments of this application disclose a power supply method, a control method, a power source, and a detection apparatus, to improve power supply efficiency of a power supply system. The method in the embodiments of this application includes: converting a voltage input into a power source into a first voltage, and supplying power to an energy-consuming component based on the first voltage; obtaining status information obtained after the energy-consuming component is powered on, where the status information includes identification information of the energy-consuming component or current working status information of the energy-consuming component; determining a second voltage based on the status information; and converting the voltage input into the power source into the second voltage, and supplying power to the energy-consuming component based on the second voltage.

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：US20230085935A1

公开(公告)日：2023-03-23

申请号：US17994529

申请日：2022-11-28

Applicant: Huawei Digital Power Technologies Co., Ltd.

Inventor： Xuejuan Kong ,  Zhen Fang ,  Lihua Liu

IPC: G05B19/4155 ,  G01R31/34 ,  G01D5/20 ,  G01B7/30

Abstract: A motor angle detection and diagnosis apparatus is connected to a drive motor using a resolver. The resolver is configured to output a resolver feedback signal of an electrical angle of the drive motor. An angle sampling and diagnosis system in the motor angle detection and diagnosis apparatus performs two-channel simultaneous sampling on a resolver feedback signal, obtained after adjustment by the resolver feedback processing circuit, separately calculates a first electrical angle and a second electrical angle; diagnoses data obtained after the two-channel sampling of the first electrical angle and the second electrical angle in real time, diagnoses hardware circuits, and controls the motor controller to enter a safe state when a diagnosis result is abnormal. In this solution, sampling is performed by using two sampling channels, so that angle decoding of at least an ASIL C can be implemented.

公开(公告)号：US12124242B2

公开(公告)日：2024-10-22

申请号：US17994529

申请日：2022-11-28

Applicant: Huawei Digital Power Technologies Co., Ltd.

Inventor： Xuejuan Kong ,  Zhen Fang ,  Lihua Liu

IPC: G05B19/4155 ,  G01B7/30 ,  G01D5/20 ,  G01R31/34

CPC classification number: G05B19/4155 ,  G01B7/30 ,  G01D5/20 ,  G01R31/343 ,  G05B2219/41329

Abstract: A motor angle detection and diagnosis apparatus is connected to a drive motor using a resolver. The resolver is configured to output a resolver feedback signal of an electrical angle of the drive motor. An angle sampling and diagnosis system in the motor angle detection and diagnosis apparatus performs two-channel simultaneous sampling on a resolver feedback signal, obtained after adjustment by the resolver feedback processing circuit, separately calculates a first electrical angle and a second electrical angle; diagnoses data obtained after the two-channel sampling of the first electrical angle and the second electrical angle in real time, diagnoses hardware circuits, and controls the motor controller to enter a safe state when a diagnosis result is abnormal. In this solution, sampling is performed by using two sampling channels, so that angle decoding of at least an ASIL C can be implemented.