公开(公告)号：WO2023069903A1

公开(公告)日：2023-04-27

申请号：PCT/US2022/078217

申请日：2022-10-17

Applicant: ATIEVA, INC.

Inventor： PACCORET, Fabrice Anthony ,  LICKFOLD, David Anthony ,  DEVARAGUDI, Sai Rajeev ,  WARDLAW, Jamie

IPC: B60H1/00

Abstract: A computer-implemented method of performing static heating of an electric motor comprises: applying a brake to a wheel of a vehicle that has an electric motor; determining an incline of the vehicle; and in response to the incline being within a first incline range, providing first current to the electric motor for static heating, the first current selected so as to not produce torque in the electric motor.

公开(公告)号：WO2023077024A1

公开(公告)日：2023-05-04

申请号：PCT/US2022/078815

申请日：2022-10-27

Applicant: ATIEVA, INC.

Inventor： PACCORET, Fabrice Anthony ,  OU YANG, Hung-Yen ,  AN, Ruxiao ,  CHETTY, Aditya

IPC: B60W30/188 ,  B60L15/10 ,  B60L15/20 ,  B60L3/10 ,  B60L50/51

Abstract: In a general aspect, a method includes determining, by a motor controller, an angular acceleration of an electric motor of a vehicle, and determining, by the motor controller, an angular speed of the electric motor. The method also includes receiving, by the motor controller, a torque command indicating an amount of torque requested from the electric motor. The method further includes, in response to the angular acceleration exceeding a first threshold, the angular speed being non-zero, and the amount of torque requested by the torque command being non-zero: determining a torque compensation amount based on a difference between an acceleration limit and the angular acceleration; subtracting the torque compensation amount from the amount of torque requested by the torque command to generate a compensated torque command; and controlling an amount of torque generated by the electric motor using the compensated torque command.