Closed-loop control method and device for rotating speed of motor, electronic equipment and storage medium

The invention relates to the technical field of vehicles, and discloses a closed-loop control method and device for the rotating speed of a motor, electronic equipment and a storage medium, and the method comprises the steps: detecting whether a speed encoder is in an abnormal state or not, so as to obtain a detection result; wherein the speed encoder is a device used for acquiring the rotating speed of the motor; if the detection result represents that the speed encoder is in an abnormal state, the estimated rotating speed is used as a target feedback rotating speed output by the motor; wherein the estimated rotating speed is the rotating speed calculated according to the input voltage of the motor and the feedback current output by the motor; and performing closed-loop control operation on a speed control loop based on the target feedback rotating speed. According to the method, when the speed encoder is detected to be in the abnormal state, closed-loop control operation is still carried out on the speed co