PID (Proportion Integration Differentiation) adjusting method based on position data of slide block automatically wound by wire winding machine

By acquiring the dual-frequency correlation parameters and error sequence autocorrelation analysis of the winding machine in real time, and dynamically scheduling the PID parameters, the problem of periodic repetition of errors in the slider position control of the winding machine is solved, and a high-precision and stable winding process is achieved.

CN121596728AActive Publication Date: 2026-03-03LINYI UNIVERSITY
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Patent Information

Application Number
CN202511804445.X
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-12-03
Publication Date
2026-03-03
Estimated Expiration
2045-12-03

AI Technical Summary

Technical Problem

In the existing control of the slider position of the winding machine, the PID adjustment with fixed parameters cannot effectively identify and suppress the periodic repetition of slider error when the winding diameter and slider stroke cycle change, resulting in a decrease in winding quality, especially in the strip locking range where pattern deviation and wire tension are unstable.

Method used

By acquiring the dual-frequency correlation parameters of the winding machine in real time, rational approximation of the lateral and rotation ratios is performed. The normalized autocorrelation characteristic of the slider position error sequence is calculated by combining the discrete hysteresis. The proportional, integral and derivative adjustment parameters are dynamically scheduled to achieve real-time control of the slider position.

Benefits of technology

It significantly reduces interlayer stacking and pattern offset issues, improves winding uniformity and control accuracy, enhances automated adaptive capabilities, and ensures the stability and high precision of the winding process.

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Abstract

The invention relates to the technical field of PID (Proportion Integration Differentiation) control, and discloses a PID adjusting method based on position data of a sliding block automatically wound by a wire winding machine, which comprises the following steps of: firstly, acquiring a main shaft angular velocity and two-way transverse movement time of the wire winding machine, and calculating a transverse movement and rotation ratio; then, rational approximation is carried out on the ratio to obtain a target rational number, and a discrete lag amount is obtained by combining a dual-frequency related parameter and a sampling period; further collecting a sliding block position reference signal and an actual signal to generate a position error sequence, and executing normalized self-correlation calculation under the discrete lag quantity to obtain a characteristic quantity; performing statistical analysis on the characteristic quantity to form an entry threshold and an exit threshold; dynamically scheduling proportional, integral and differential adjustment parameters and integral states according to a comparison result of the characteristic quantity and a threshold; and finally, the controlled quantity is calculated and output by utilizing the scheduled proportion, integral and differential adjusting parameters and the integral state so as to drive the position of the sliding block of the wire winding machine to realize accurate and automatic adjustment.
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