Method for controlling operating speed and torque of electric motor

    公开(公告)号:US10312844B2

    公开(公告)日:2019-06-04

    申请号:US15918832

    申请日:2018-03-12

    Inventor: Sheng-Fu Lai

    Abstract: Systems and methods for controlling the operating speed and the torque of an electric motor using an operational model are described. An operational model for the electric motor, including a plot of engine performance parameters, is used for reference, and a most efficient output path, which may pass through an optimal operation region in the operational model, is selected. The most efficient output path may be determined, for example, according to locations of a current output state and a to-be-reached target state in the operational model, enabling the operating state of the motor to reach the target state from the current operating state. By selecting a more efficient output path, the operating efficiency of the motor may be optimized, the life of a battery improved and/or the operating mileage of the vehicle may be increased, without significantly reducing the driving experience.

    Method for controlling operating speed and torque of electric motor

    公开(公告)号:US10333450B2

    公开(公告)日:2019-06-25

    申请号:US15831129

    申请日:2017-12-04

    Inventor: Sheng-Fu Lai

    Abstract: Systems and methods for controlling the operating speed and the torque of an electric motor using an operational model are described. An operational model for the electric motor, including a plot of engine performance parameters, is used for reference, and a most efficient output path, which may pass through an optimal operation region in the operational model, is selected. The most efficient output path may be determined, for example, according to locations of a current output state and a to-be-reached target state in the operational model, enabling the operating state of the motor to reach the target state from the current operating state. By selecting a more efficient output path, the operating efficiency of the motor may be optimized, the life of a battery improved and/or the operating mileage of the vehicle may be increased, without significantly reducing the driving experience.

Patent Agency Ranking