US 12,355,376 B2
Electric motor control method, electric motor, and computer-readable storage medium
Xiaolin Hu, Guangdong (CN); Yanyu Wei, Guangdong (CN); and Wenjing Ke, Guangdong (CN)
Assigned to FOSHAN WELLING WASHER MOTOR MANUFACTURING CO., LTD., Guangdong (CN); and WELLING (WUHU) MOTOR MANUFACTURING CO., LTD., Anhui (CN)
Filed by FOSHAN WELLING WASHER MOTOR MANUFACTURING CO., LTD., Guangdong (CN); and WELLING (WUHU) MOTOR MANUFACTURING CO., LTD., Anhui (CN)
Filed on Sep. 14, 2023, as Appl. No. 18/368,306.
Application 18/368,306 is a continuation of application No. PCT/CN2021/121804, filed on Sep. 29, 2021.
Claims priority of application No. 202110409950.X (CN), filed on Apr. 16, 2021.
Prior Publication US 2024/0007038 A1, Jan. 4, 2024
Int. Cl. H02P 21/22 (2016.01); H02P 21/18 (2016.01); H02P 27/12 (2006.01)
CPC H02P 21/22 (2016.02) [H02P 21/18 (2016.02); H02P 27/12 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A control method for an electric motor, the control method comprising:
determining, in a current control cycle, a first theoretical sector corresponding to the voltage vector of the electric motor;
obtaining, in the previous control cycle of the current control cycle, a first sector corresponding to the voltage vector;
determining a target control cycle in a plurality of historical control cycles which precede the current control cycle, and determining an interval duration between the target control cycle and the current control cycle;
determining a target sector corresponding to the voltage vector in the current control cycle based on the first theoretical sector, the first sector and the interval duration; and
generating a corresponding driving signal based on the target sector, and driving the electric motor to operate through the driving signal.