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Speed feedforward improving filtering method and system of adaptive filter

An adaptive filter and filter coefficient technology, applied in the direction of digital control, electrical program control, etc., can solve the problems of speed feedforward output jump, machine tool vibration, single-axis speed jump, etc.

Inactive Publication Date: 2014-03-05
GOOGOL TECH SHENZHEN LTD GUANGDONG +1
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Problems solved by technology

Due to the acceleration and deceleration of the motion axis or the change of the trajectory vector direction of the multi-axis continuous trajectory CNC equipment, the single-axis speed jumps, so that the output of the speed feedforward jumps, which is easy to cause the vibration of the machine tool

Method used

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  • Speed feedforward improving filtering method and system of adaptive filter
  • Speed feedforward improving filtering method and system of adaptive filter
  • Speed feedforward improving filtering method and system of adaptive filter

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Embodiment Construction

[0039] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0040] figure 1 It is a flowchart of a filtering method of an adaptive filter for improving velocity feedforward in an embodiment. The filtering method of the adaptive filter for improving speed feedforward includes the following steps:

[0041] Step 102, acquiring the velocity variation.

[0042] Step 104, calculate the filter coefficient of the adaptive filter according to the speed variation, and perform filtering processing on the speed according to the filter coefficient of the adaptive filter.

[0043] In this embodiment, the steps of calculating the filter coefficient of the adaptive filt...

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Abstract

The invention relates to a speed feedforward improving filtering method and system of an adaptive filter. The method includes the following steps that speed variation is acquired; the filter coefficient of the adaptive filter is calculated according to the speed variation, and filtering processing is carried out on the speed according to the filter coefficient of the adaptive filter. By acquiring the filter coefficient according to the speed variation and carrying out filtering processing on the speed according to the filter coefficient, speed jump is reduced, a smooth speed is achieved, so that the output of speed feedforward is smoother, and vibration of a machine tool is reduced.

Description

technical field [0001] The invention relates to the field of automatic control, in particular to a filtering method and system of an adaptive filter for improving speed feedforward. Background technique [0002] In industrial production, processing by multi-axis continuous trajectory CNC equipment is widely used. The acceleration and deceleration of the motion axis or the change of the trajectory vector direction of the multi-axis continuous trajectory numerical control equipment leads to a single-axis speed jump, so that the output of the speed feedforward jumps, which is likely to cause vibration of the machine tool. Contents of the invention [0003] Based on this, it is necessary to provide a filtering method to improve the speed feedforward adaptive filter for the vibration of the machine tool caused by the speed jump, which can smooth the output of the speed feedforward and reduce the vibration of the machine tool. [0004] In addition, it is also necessary to provi...

Claims

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Application Information

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IPC IPC(8): G05B19/18
Inventor 吴宏吕恕王瑞张婷华
Owner GOOGOL TECH SHENZHEN LTD GUANGDONG
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