The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 23, 2025
Filed:
Jan. 30, 2023
Taiyuan University of Science and Technology, Taiyuan, CN;
Abstract
The invention provides a dynamic proportional-integral-derivative (PID) method for plate straightening based on changes in yield strength. The method includes the steps of determining yield strength of a plate at an initial temperature; calculating a predicted straightening force of each straightening roll based on the yield strength; obtaining a measured straightening force of each straightening roll; determining yield strength errors Δσ, Δσ, and Δσusing a numerical approximation method; determining parameters of a PID controller based on the yield strength errors Δσ, Δσ, and Δσ; calculating a target reduction of a corresponding straightening roll based on the yield strength error Δσand the yield strength at the initial temperature; and adjusting a measured reduction of the current straightening roll using the PID controller with the parameters determined based on the target reduction.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile