Control system, learning device, inference device and control

The control system improves cutting accuracy in workpieces by using a Kalman filter to estimate future positions, addressing low accuracy in existing linear extrapolation methods, particularly during acceleration and deceleration, by dynamically switching between estimation methods based on speed conditions.

DE112024004495T5Pending Publication Date: 2026-08-27MITSUBISHI ELECTRIC CORP
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Patent Information

Application Number
DE112024004495
Authority / Receiving Office
DE · DE
Patent Type
Applications
Current Assignee / Owner
Filing Date
2024-04-26
Publication Date
2026-08-27

AI Technical Summary

Technical Problem

Current cutting processes in workpieces, such as in packaging machines and printers, suffer from low estimation accuracy of future positions during acceleration and deceleration due to linear extrapolation, leading to deviations in cutting positions and inability to switch filters optimally for varying conditions.

Method used

A control system employing a detector, drive, controller, and remote input/output unit, utilizing a Kalman filter to estimate future positions, and a time generator to determine processing times based on these estimates, with a switching mechanism between Kalman and linear extrapolation methods based on speed conditions.

Benefits of technology

Enhances estimation accuracy of future positions during acceleration and deceleration ranges, improving cutting precision by using a Kalman filter that adapts to changing conditions.

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Abstract

A control system comprises a detector for sensing the position of a workpiece moving along a feed path, a drive for powering a processing device to perform processing on the workpiece, a controller (12) for controlling the drive, and a remote input / output unit for sending a sensing signal from the detector to the controller (12). The controller (12) includes a Kalman filter (23) for estimating a future position of the workpiece based on the sensing signal and a time generator (25) for generating a time at which the processing device performs the processing, based on the estimated future position of the workpiece. The controller sends the processing time to the drive via the remote input / output unit.
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