公开(公告)号：WO2023076942A1

公开(公告)日：2023-05-04

申请号：PCT/US2022/078706

申请日：2022-10-26

Applicant: ATIEVA, INC.

Inventor： DESHPANDE, Yateendra ,  DESHMUKH, Sameer Sudhir

IPC: H02P29/62 ,  B60L7/26 ,  H02P21/22

Abstract: A method of determining rotor angle limits for static heating of an electric motor comprises: applying a brake to a wheel of a vehicle, wherein the vehicle has an electric motor; while the brake is applied, providing a first current to the electric motor to generate first torque not exceeding a brake torque limit of the brake; while the brake is applied, providing a second current to the electric motor to generate second torque, the second current being opposite, and about equal, to the first current; determining a first rotor rotation angle associated with the first current, and a second rotor rotation angle associated with the second current; and setting the first and second rotor rotation angles as first and second rotor angle limits, respectively, for static heating of the electric motor.