公开(公告)号：US12040731B2

公开(公告)日：2024-07-16

申请号：US17828930

申请日：2022-05-31

Applicant: Huawei Digital Power Technologies Co., Ltd.

Inventor： Chaoqiang Wu ,  Mengxuan Lin ,  Haojie Li

IPC: H02K5/173 ,  B60H1/02 ,  B60L58/27 ,  H02P29/62

CPC classification number: H02P29/62 ,  B60H1/02 ,  B60L58/27

Abstract: A method for controlling heating of a motor and a related controller are provided. The method includes: obtaining a heating target temperature value; determining, based on the heating target temperature value, a heating motor that needs to generate heat from a plurality of motors of a multi-motor drive system and heat generation power of the heating motor; and sending a first control instruction to the heating motor. The first control instruction is used to respectively input harmonic currents to three phases of windings of the motor, so that the heating motor generates heat based on the heat generation power. According to the application, the heating target temperature value is obtained, and the quantity of heating motors can be flexibly controlled to generate sufficient heat generation power.

公开(公告)号：US20230406156A1

公开(公告)日：2023-12-21

申请号：US18460062

申请日：2023-09-01

Applicant: Huawei Digital Power Technologies Co., Ltd.

Inventor： Chaoqiang Wu ,  Mengxuan Lin ,  Chaojie Shi

IPC: B60L58/27 ,  H02P29/62 ,  H01M10/615 ,  H01M10/625 ,  H01M10/656

CPC classification number: B60L58/27 ,  H02P29/62 ,  H01M10/615 ,  H01M10/625 ,  H01M10/656 ,  H02P2207/01 ,  H01M2220/20 ,  B60L2250/00 ,  B60L2240/545

Abstract: A method for processing an asynchronous motor includes obtaining indication trigger information; and injecting, in response to the indication trigger information, a first current into a stator winding of the asynchronous motor, where the first current is for generating heat without a torque for the asynchronous motor, and the heat heats a battery pack through a heat exchanger.