Stepping motor control method, device and storage medium

A technology of stepping motors and control methods, applied in the direction of motor generator control, control systems, electrical components, etc., can solve the problems of losing steps when the motor is turned on instantly, reducing the accuracy of controlling the motor, and achieving the effect of reducing the probability of step loss

Active Publication Date: 2021-12-31
DREAME TECH (SHANGHAI) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The application provides a stepping motor control method, device and storage medium, which can solve the problem of step loss when the motor is turned on and off instantaneously, resulting in reduced accuracy of controlling the motor

Method used

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  • Stepping motor control method, device and storage medium
  • Stepping motor control method, device and storage medium
  • Stepping motor control method, device and storage medium

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Embodiment Construction

[0035] The specific implementation manners of the present application will be further described in detail below in conjunction with the drawings and embodiments. The following examples are used to illustrate the present application, but not to limit the scope of the present application.

[0036] First, some terms involved in this application are explained.

[0037] The number of phases of the stepper motor: refers to the number of coil groups inside the stepper motor.

[0038] The number of beats of the stepper motor: refers to the number of pulses required for each tooth pitch when the stepper motor is running.

[0039] Take a 2-phase 4-wire stepping motor as an example, the number of phases is 2, assuming that the number of rotor teeth is 50, and the step angle (each step angle corresponds to a pulse) is 1.8°, then the tooth pitch of the rotor is: 360° / 50 =7.2°; the number of beats is: 7.2° / 1.8°=4 (beats). In other words, a stepper motor needs 4 pulses per tooth pitch per...

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Abstract

The application relates to a stepping motor control method, device and storage medium, belonging to the field of motor control technology, the method includes: receiving a control signal of a stepping motor, and the control signal is used to control the opening or closing of the stepping motor ; Based on the control signal, control the uniform acceleration or uniform deceleration of the stepper motor; when the speed of the stepper motor is updated to the target speed, control the stepper motor to work in the manner indicated by the control signal; Solve the problem of losing steps when the motor is turned on and off instantly, which leads to the reduction of the accuracy of the motor control; because the stepper motor runs with uniform acceleration during the startup process and uniform deceleration operation during the shutdown process, the switching process of the stepper motor exists. In the buffer stage of speed change, at this time, the stepper motor will not produce a large impact, reducing the probability of the stepper motor losing steps.

Description

technical field [0001] The present application relates to a stepping motor control method, device and storage medium, belonging to the technical field of motor control. Background technique [0002] Stepper motor is an open-loop control motor that converts electrical pulse signals into angular displacement or linear displacement. It is the main executive element in modern digital program control systems and is widely used. For example: used in hair dryers, fans and other electronic equipment. [0003] Since the momentary opening and closing of the stepper motor will cause a large impact, loss of steps may occur. In this way, errors will be introduced to the fine control of the stepping motor, resulting in a problem of reducing the accuracy of controlling the motor. Contents of the invention [0004] The present application provides a stepping motor control method, device and storage medium, which can solve the problem of step loss when the motor is turned on and off inst...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02P8/36H02P8/14
CPCH02P8/18H02P8/10H02P8/38H02P8/32
Inventor 俞浩
Owner DREAME TECH (SHANGHAI) CO LTD
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