METHOD FOR CONTROLLING OPERATING SPEED AND TORQUE OF ELECTRIC MOTOR

摘要

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.

主权项

1. A method for controlling the operating speed and torque of an electric motor in an operational model, wherein the operational model comprises a plurality of operation positions and an optimal operation region of the electric motor, each operation position corresponding to a speed parameter, a torque parameter and an operating efficiency parameter of the electric motor, the method comprising:
storing the operational model in a storage device; detecting a current speed parameter and a current torque parameter corresponding to a current operation position of the electric motor in the operational model; inputting a target speed parameter and a target torque parameter corresponding to a target operation position of the electric motor in the operational model; determining whether the current operation position is located in the optimal operation region according to the current speed parameter and the current torque parameter of the electric motor; and if the current operation position is not located in the optimal operation region:
adjusting at least one of the current speed parameter and the current torque parameter along a first path to move the current operation position to an intermediate operation position corresponding to an intermediate speed parameter and an intermediate torque parameter and located in the optimal operation region; andadjusting the intermediate speed parameter and the intermediate torque parameter to move the intermediate operation position to the target operation position along a second path.