Motor control method, system and equipment of sewing machine and storage medium

Abstract

The invention discloses a motor control method of a sewing machine. The method comprises the steps that the motor mechanical angle when the rotation speed is lower than a preset first rotation speed for the first time in the process that a motor of the sewing machine rotates for a circle is obtained and serves as a motor mechanical angle A; the motor mechanical angle when the rotation speed is thelowest in the process that the motor rotates for a circle is obtained and serves as a motor mechanical angle B; in the sewing process, when the angle of the motor is A-M, parameters of a speed ring in a motor control system are adjusted so as to improve the output torque of the motor, and when the angle of the motor is B-N, the parameters of the speed ring are restored to default values, whereinM is larger than 0 and smaller than A, N is larger than 0 and smaller than B, and B-N is larger than A-M. By applying the scheme, when the sewing machine sews a thick material, the rotation speed of the motor can be more stable, the production efficiency of sewing and the sewing effect can be improved, and the user experience is improved. The invention further provides the motor control system andequipment of the sewing machine and a storage medium which have the corresponding effects.

Description

technical field [0001] The invention relates to the technical field of sewing machines, in particular to a motor control method, system, device and storage medium of a sewing machine. Background technique [0002] With the development of science and technology, users have higher and higher requirements for product performance. For sewing machines, users have higher and higher requirements for their ability to sew thick materials. [0003] When the sewing machine sews thick materials, it is equivalent to loading a heavy load on the motor of the sewing machine. When the machine is puncturing thick materials, the load is the largest at this time, and the actual speed of the motor will drop immediately. Generally, low speed is used when sewing thick materials. Under such low speed and heavy load conditions, the speed feedback of the motor lags behind, the speed control response is slow, and the running speed of the motor will fluctuate greatly, that is, after the speed of the mo...

AI Technical Summary

Problems solved by technology

However, such a control method needs to reduce the current speed to a certain value before intervening in the control, and when the motor is continuously overloaded, even if the speed loop control parameters are strengthened, the actual speed will not immediately return to the desired speed, but will still There is a descent and then a pull back, so the effect is limited

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