公开(公告)号：US20250150010A1

公开(公告)日：2025-05-08

申请号：US18934504

申请日：2024-11-01

Applicant: Huawei Digital Power Technologies Co., Ltd.

Inventor： Sen CAO ,  Hongyong LI ,  Yankun XU

IPC: H02P21/16 ,  B60L58/27 ,  H01M10/615 ,  H01M10/625 ,  H01M10/637 ,  H02P21/22

Abstract: A motor controller for pulse heating of a power battery. The motor controller includes an inverter circuit, the inverter circuit includes three switching transistor bridge arms, two ends of each switching transistor bridge arm are respectively configured to connect to positive and negative electrodes of the power battery through a direct current bus, and bridge arm midpoints of the three switching transistor bridge arms are separately configured to connect to a three-phase winding of a motor. The bridge arm midpoints of the three switching transistor bridge arms are configured to output a three-phase current, the three-phase current is used to generate a pulse alternating current on the direct current bus, and the pulse alternating current is used to heat the power battery. A current of each phase of the three-phase current is a unipolar triangular wave, and a sum of the three-phase current is zero.