公开(公告)号：US20230006437A1

公开(公告)日：2023-01-05

申请号：US17943878

申请日：2022-09-13

Applicant: BYD COMPANY LIMITED

Inventor： Luhui XU ,  Yilong YU ,  Zhiyong DU ,  Axi QI ,  Guangming YANG

IPC: H02H7/08 ,  B60L3/00 ,  H02P6/24 ,  H02P6/08

Abstract: A motor control system includes a main control unit, a power supply unit, and a driving unit. The main control unit obtains sampling data of a motor and a power supply signal from the driving unit, generates a motor control signal according to the sampling data, and outputs a safety enable signal when determining that motor drive is abnormal according to the sampling data or when determining that power supply to the driving unit is abnormal according to the power supply signal. The power supply unit supplies power to the main control unit, monitors a state of the main control unit, and outputs a safety cut-off signal when the power supply unit or the main control unit is abnormal. The driving unit drives the motor according to the motor control signal, and switches to a safe path when receiving any one of the safety enable or safety cut-off signal.

公开(公告)号：US20220393632A1

公开(公告)日：2022-12-08

申请号：US17789976

申请日：2020-12-29

Applicant: BYD COMPANY LIMITED

Inventor： Yilong YU ,  Luhui XU ,  Zhiyong DU ,  Axi QI ,  Guangming YANG

IPC: H02P29/028 ,  B60L3/00

Abstract: The present disclosure provides an electric motor control system and a vehicle. The electric motor control system includes a motor drive module, a multi-core processing module, and a safety logic module. The multi-core processing module includes a main function core and a lockstep monitoring core. The main function core is configured to obtain sampling data, and when any one of the sampling data, a running status of the main function core, a motor control signal, and a running status of a motor is abnormal, the lockstep monitoring core outputs a safety trigger signal; and the safety logic module is configured to output an instruction for prohibiting execution of the motor control signal to the motor drive module when receiving the safety trigger signal.