US 12,447,867 B2
Method, apparatus, device, and system for processing asynchronous motor, and transportation means
Chaoqiang Wu, Shenzhen (CN); Mengxuan Lin, Dongguan (CN); and Chaojie Shi, Dongguan (CN)
Assigned to HUAWEI DIGITAL POWER TECHNOLOGIES CO., LTD., Shenzhen (CN)
Filed by Huawei Digital Power Technologies Co., Ltd., Shenzhen (CN)
Filed on Sep. 1, 2023, as Appl. No. 18/460,062.
Application 18/460,062 is a continuation of application No. PCT/CN2021/078864, filed on Mar. 3, 2021.
Prior Publication US 2023/0406156 A1, Dec. 21, 2023
Int. Cl. B60L 58/27 (2019.01); H01M 10/615 (2014.01); H01M 10/625 (2014.01); H01M 10/656 (2014.01); H02P 29/62 (2016.01)
CPC B60L 58/27 (2019.02) [H01M 10/615 (2015.04); H01M 10/625 (2015.04); H01M 10/656 (2015.04); H02P 29/62 (2016.02); B60L 2240/545 (2013.01); B60L 2250/00 (2013.01); H01M 2220/20 (2013.01); H02P 2207/01 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method for processing an asynchronous motor comprising:
obtaining indication trigger information;
injecting, in response to the indication trigger information, a first current into a stator winding of the asynchronous motor;
generating, using the first current, heat without generating torque in the asynchronous motor;
heating a battery pack with the heat through a heat exchanger; and
injecting a second current into coils of the stator winding comprising a U1-U2 coil, a V1-V2 coil, and a W1-W2 coil after superimposing with the first current when the asynchronous motor is in a running state, wherein the second current is a three-phase current for driving the asynchronous motor to run, wherein the first current comprises IU, IV, and IW, wherein a first amplitude of a third current in one of the U1-U2 coil, V1-V2 coil, or the W1-W2 coil is twice of a second amplitude of each of a fourth current and a fifth current of other two coils, and wherein a first direction of the third current is opposite to second directions of the fourth current and the fifth current.