公开(公告)号：US20250042306A1

公开(公告)日：2025-02-06

申请号：US18780790

申请日：2024-07-23

Applicant: Huawei Digital Power Technologies Co., Ltd.

Inventor： Yankun XU ,  Sen Cao ,  Yang Cheng

IPC: B60L58/27 ,  B60L15/20 ,  H01M10/615 ,  H01M10/625 ,  H01M10/637

Abstract: A method for pulse heating a power battery of an electric vehicle and an electric vehicle. A powertrain includes a first power circuit and a second power circuit. The method is used to control the second power circuit or a motor power circuit to generate a pulse alternating current on a direct current bus, and the pulse alternating current is used to heat the power battery. A phase value of a pulse alternating current output by at least one of the first power circuit and the second power circuit is adjusted, to reduce a phase difference between a pulse alternating current generated by the first power circuit and a pulse alternating current generated by the second power circuit, thereby improving heating efficiency of the power battery.

公开(公告)号：US20240128914A1

公开(公告)日：2024-04-18

申请号：US18364666

申请日：2023-08-03

Applicant: Huawei Digital Power Technologies Co., Ltd.

Inventor： Yankun XU ,  Ningbo FENG ,  Xueliang ZHANG

IPC: H02P27/08 ,  B60L15/00

CPC classification number: H02P27/08 ,  B60L15/007

Abstract: A powertrain, a control method, and a hybrid electric vehicle. The powertrain includes a motor controller unit and a motor. The motor controller unit includes N bridge arms, and the motor includes N motor windings corresponding to the N bridge arms. Each of the N bridge arms includes a first end and a second end, the first end of each bridge arm is connected to a positive bus, the second end of each bridge arm is connected to a negative bus, a midpoint of each bridge arm is connected to one end of one motor winding, the other end of each of the N motor windings is connected to one end of a power battery, and the other end of the power battery is connected to the positive bus or the negative bus.

公开(公告)号：US20230347745A1

公开(公告)日：2023-11-02

申请号：US18304597

申请日：2023-04-21

Applicant: Huawei Digital Power Technologies Co., Ltd.

Inventor： Xuejuan KONG ,  Yang ZHAO ,  Xin WU ,  Yankun XU

IPC: B60L3/00 ,  G06F11/07 ,  G06F1/24 ,  B60W10/08

CPC classification number: B60L3/0061 ,  G06F11/0757 ,  G06F1/24 ,  B60W10/08

Abstract: A drive apparatus and an electric vehicle are provided to implement fault monitoring functions of two control chips when one watchdog chip is configured. The drive apparatus includes a first control chip, a second control chip, a first drive circuit, a second drive circuit, a watchdog chip, and a reset shutdown circuit. The first drive circuit generates a drive signal of a first inverter. The second drive circuit generates a drive signal of a second inverter. The first control chip and the second control chip perform fault monitoring on each other.