Mould synchronous control method and system of slip form paver in stepping process

By adopting the double closed-loop PID control method in the stepping process of the sliding mold paver, the synchronous control of the displacement and speed of the mold and the sliding mold locomotive body is realized, solving the problems of cumbersome operation and poor synchronization control effect in the prior art, and improving construction efficiency and quality.

CN119686194APending Publication Date: 2025-03-25CHINA RAILWAY CONSTR HEAVY IND
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Patent Information

Application Number
CN202411698615.6
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-11-26
Publication Date
2025-03-25

AI Technical Summary

Technical Problem

In the stepping process, the mold of the sliding mold paver cannot achieve synchronous control of the displacement and speed of the sliding mold locomotive body, resulting in cumbersome operation and poor synchronization control effect.

Method used

The double closed-loop PID control method is used to obtain the forward displacement of the sliding-mode locomotive body and the actual backward displacement of the mold in real time, calculate the target adjustment value of the mold backward speed, and achieve precise control by adjusting the input current of the mold drive motor.

Benefits of technology

It realizes precise control of mold speed and displacement in stepping process, ensuring the synchronization of displacement and speed of the mold and sliding mold locomotive body, and has the advantages of fast response speed, high stability and reliability.

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Abstract

The invention discloses a mold synchronization control method and system for a slip-form paver in a stepping process, and the method comprises the steps: firstly obtaining the forward displacement of a vehicle body of the slip-form paver and the actual backward displacement of a mold in the stepping process in real time; double-closed-loop PID control is carried out based on the forward displacement of the sliding mode locomotive body and the actual backward displacement and the actual backward speed of the mold, a target adjustment value of the backward speed of the mold in each control period is obtained, and finally a target adjustment value of the input current of the mold driving motor is obtained through calculation based on the target adjustment value of the backward speed of the mold. And adjusting the input current of the mold driving motor based on the target adjustment value. By adopting the double-closed-loop PID control, accurate control over the speed and displacement of the mold in the stepping process is achieved, the synchronism of the displacement and speed of the mold and the sliding mode locomotive body in the stepping process can be guaranteed, and the beneficial effects of being high in response speed and high in stability and reliability are achieved.
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