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    Motor control system and vehicle with same
    11.
    发明授权
    Motor control system and vehicle with same 有权

    公开(公告)号：US12176838B2

    公开(公告)日：2024-12-24

    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.

    Motor control system and motor control device
    12.
    发明授权
    Motor control system and motor control device 有权

    公开(公告)号：US12009654B2

    公开(公告)日：2024-06-11

    申请号：US17786941

    申请日：2020-11-25

    Applicant: BYD COMPANY LIMITED

    Inventor： Zhiyong Du ,  Luhui Xu ,  Yilong Yu ,  Axi Qi ,  Guangming Yang

    IPC: H02H7/08 ,  H02P27/08

    CPC classification number: H02H7/0833 ,  H02P27/08

    Abstract: An electric motor control system includes a master control module, a drive module, and a monitoring module. The master control module is configured to output a low-voltage drive signal to the drive module, the drive module converts the low-voltage drive signal into a high-voltage drive signal and outputs the high-voltage drive signal to a power unit, and the power unit outputs, according to the high-voltage drive signal, a power supply drive signal provided by a high-voltage battery. The monitoring module is electrically connected with the master control module and the drive module, and is configured to acquire the low-voltage drive signal, and output a fault signal to the master control module when the low-voltage drive signal is abnormal, to control the master control module to stop outputting the low-voltage drive signal.

    Energy conversion device, power system and vehicle
    13.
    发明授权
    Energy conversion device, power system and vehicle 有权

    公开(公告)号：US11996781B2

    公开(公告)日：2024-05-28

    申请号：US17622188

    申请日：2020-06-18

    Applicant: BYD COMPANY LIMITED

    Inventor： Luhui Xu ,  Zhiyong Du ,  Jiawei Wan ,  Caiwen Li

    IPC: H02J7/02 ,  B60L53/22 ,  B60L53/24 ,  H02M3/335

    CPC classification number: H02M3/33584 ,  B60L53/22 ,  B60L53/24 ,  H02J7/02 ,  H02M3/33571 ,  H02J2310/48 ,  Y02T10/70

    Abstract: An energy conversion apparatus, a power system, and a vehicle are provided. The energy conversion apparatus includes a motor coil (11) and a bridge arm converter (12). The bridge arm converter (12) is connected to an external battery (200) and an external charging port (10). The motor coil (11) is connected to the external charging port (10), and the motor coil (11) includes a plurality of phase windings, each phase winding includes N coil units, first ends of the N coil units of each phase winding are connected together and then connected to a corresponding phase bridge arm of the plurality of phase bridge arms, and second ends of coil units in each phase winding are connected to second ends of corresponding coil units in other phase windings and then selectively connected to the charging port (10).

    Method for controlling rotation rate of electric motor
    16.
    发明授权
    Method for controlling rotation rate of electric motor 有权
    控制电动机转速的方法

    公开(公告)号：US09018875B2

    公开(公告)日：2015-04-28

    申请号：US13800823

    申请日：2013-03-13

    Applicant: Shenzhen BYD Auto R&D Company Limited ,  BYD Company Limited

    Inventor： Zhiyong Du ,  Xing Chen ,  Kai Xiao

    IPC: H02P6/14 ,  H02P21/00

    CPC classification number: H02P21/0035 ,  H02P21/0003 ,  H02P21/0021 ,  H02P21/22

    Abstract: A method for controlling a rotation rate of an electric motor includes the s following steps: determining if an absolute value of a difference between an objective rotation rate of the electric motor and an actual rotation rate of the electric motor is greater than or equal to a predetermined value, and if yes, compensating a q axis current of the electric motor to adjust the rotation rate.

    Abstract translation: 一种用于控制电动机的转速的方法包括以下步骤：确定电动机的目标转速与电动机的实际转速之差的绝对值是否大于或等于 并且如果是，则补偿电动机的aq轴电流以调节转速。

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