Motor control method, device and computer readable storage medium

A motor control and controller technology, applied in the direction of single motor speed/torque control, current controller, software algorithm control, etc., can solve problems such as insufficient motor control
CN109462352BActive Publication Date: 2020-08-25BYD CO LTD
4 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN ยท China
Patent Type
Patents(China)
Current Assignee / Owner
BYD CO LTD
Publication Date
2020-08-25

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention provides a motor control method and device, and a computer readable storage medium, used for solving the problem that the motor control is not accurate enough in related technologies. The motor control method comprises the following steps: sampling the current rotating speed and current of a motor; adjusting a first proportional parameter and a first integral parameter of a first proportional integral controller according to a rotating speed difference value between the rotating speed and a preset target speed; inputting the rotating speed difference value into the first proportional integral controller after adjusting the parameters to obtain a target current; inputting a current difference value between the current and the target current into a second proportional integralcontroller to obtain a target duty ratio; and inputting the target duty ratio to a PWM signal generator, so that the PWM signal generator outputs a motor control signal according to the target duty ratio.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The present disclosure relates to the field of electromechanical technology, and in particular, to a motor control method, device, and computer-readable storage medium. Background technique

[0002] In some application scenarios, when the load of the motor changes due to the change of the working state of the motor, the speed stability of the brushless DC motor is affected. When using a single speed loop to control the brushless DC motor, the current motor speed is sampled through the position sensing module, and then the motor speed is input into the PI (Proportion Integration, PI) controller to obtain the target duty cycle value, PWM (Pulse Width Modulation, pulse Width modulation) signal generator can generate corresponding motor control signal according to the target duty cycle value, so as to control the motor to rotate according to the preset target speed.

[0003] In the related art, the P (Proportion) parameter and the I (Integration) paramete...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More