公开(公告)号：US20230049854A1

公开(公告)日：2023-02-16

申请号：US17858857

申请日：2022-07-06

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Xiong ZHENG ,  Xianxi Pan ,  Feilong CAl ,  Zhimin Dan

IPC: G01L5/00 ,  G01R19/00

Abstract: Embodiments of this application provide a torque obtaining method and device, a motor controller, and a readable storage medium. The torque obtaining method includes: obtaining a rotation speed of a motor; obtaining a current of the motor; obtaining a flux linkage of the motor; determining an electromagnetic torque of the motor based on the current and the flux linkage; and inputting the rotation speed and the electromagnetic torque into a preset status observer, and obtaining an observed value of an actual output torque of the motor, where the observed value is output by the status observer. The obtaining method is intended to obtain the actual output torque effectively, simply, and accurately.