公开(公告)号：US12021472B2

公开(公告)日：2024-06-25

申请号：US17632248

申请日：2021-05-17

申请人： Nissan Motor Co., Ltd.

发明人： Tomoaki Kaimori ,  Kazuhiko Matsumoto ,  Kazuhiro Matsumura

IPC分类号： H02K11/25 ,  H02K5/20 ,  H02P29/64

CPC分类号： H02P29/64 ,  H02K5/203 ,  H02K11/25

摘要： A motor control method controls a motor having windings of a plurality of phases and a cooling water channel. The motor control calculates an estimated maximum temperature of the winding of the phase that reaches a highest temperature from among the windings of the plurality of phases based on the input electrical power when the motor is in a lock state. The motor control further calculates an offset value based on a detected temperature of the windings and a detected temperature of the cooling water, and corrects the estimated maximum temperature based on the temperature of the windings and the offset value. The motor control further controls the input electrical power according to the estimated maximum temperature.