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A method and system for adjusting feedforward parameters

A technology of parameters and corresponding relationships, applied in the field of adjusting feedforward parameters, can solve the problems of inability to adjust the speed feedforward parameters, the maximum position of the acceleration feedforward parameters, etc.

Inactive Publication Date: 2016-10-26
GUANGDONG UNIV OF TECH
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Problems solved by technology

[0004] In view of this, the present invention provides a method and system for adjusting feed-forward parameters to solve the problem that the speed feed-forward parameters and acc

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  • A method and system for adjusting feedforward parameters
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  • A method and system for adjusting feedforward parameters

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Embodiment Construction

[0059] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0060] The present invention provides a method for adjusting feed-forward parameters, referring to figure 1 , the method includes:

[0061] S101. According to the analysis of the position error curve, the maximum dynamic tracking error and the maximum position underadjustment are obtained;

[0062] Optionally, in another embodiment provided by the present invention, the position error curve generation process is:

[0063] Analyzing the first corresponding re...

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Abstract

The invention provides a method for adjusting feedforward parameters. The method is characterized by obtaining the maximum dynamic tracking error and the maximum position underadjustment through position error curve analysis; judging whether the maximum dynamic tracking error and the maximum position underadjustment meet system requirements; and if not, adjusting speed feed-forward parameters and acceleration speed feed-forward parameters directly, and adjusting the maximum dynamic tracking error and the maximum position underadjustment, so that the case of carrying out weighting or averaging and the like on the maximum dynamic tracking error and the maximum position underadjustment to form a single target and adjusting the final single target to be in the minimum value is not longer needed; the two targets are determined when the maximum dynamic tracking error and the maximum position underadjustment are adjusted; adjustment is done accurately to meet maximum dynamic tracking error requirement and the maximum position underadjustment requirement; and the problem that the speed feed-forward parameters and the acceleration speed feed-forward parameters cannot be accurately adjusted to meet the maximum dynamic tracking error requirement and the maximum position underadjustment requirement simultaneously is solved.

Description

technical field [0001] The invention relates to the field of high-acceleration and high-precision electronic equipment control, and more specifically, relates to a method and system for adjusting feedforward parameters. Background technique [0002] High-acceleration and high-precision electronic equipment, such as die bonding machines, wire bonding machines, wafer-level packaging equipment, etc., require both dynamic fast tracking capabilities and high precision. In order to improve dynamic fast tracking capabilities, motion planning based on speed and acceleration can be used command as input to the method for feed-forward correction. [0003] Feedforward correction involves the adjustment of velocity feedforward parameters and acceleration feedforward parameters. At present, the adjustment of velocity feedforward parameters and acceleration feedforward parameters mostly adopts manual adjustment or simple global search automatic adjustment. These two adjustment methods Mu...

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Application Information

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IPC IPC(8): G05B13/02
CPCG05B13/02
Inventor 贺云波陈新胡永珊高健杨志军陈云张昱汤晖敖银辉
Owner GUANGDONG UNIV OF TECH