电动车双闭环程序，采用双闭环方式控制电机，以得到最好的转速性能，并且可以 限制电机的最大电流。 是电动自行车驱动开发者的重要参考资料。-EV dual closed-loop program, dual closed loop motor control, in order to get the best speed performance, and can Limiting the maximum current of the motor. Is an important refere