Automatic zero setting method of servo control system

A servo control system and automatic zero adjustment technology, applied in general control systems, control/regulation systems, program control, etc., can solve problems such as poor accuracy and inability to achieve automatic zero adjustment

Inactive Publication Date: 2015-03-18
CHANGAN AUTOMOBILE (GRP) CO LTD
View PDF4 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the shortcomings of the inability to realize automatic zero adjustment in the active servo control system, overcome the limitations and poor precision of

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Automatic zero setting method of servo control system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0016] Such as figure 1 As shown, a method for automatic zeroing of a servo control system, the specific method steps are as follows:

[0017] (1) Input the given value through the A / D acquisition system

[0018] After the given control signal is processed by second-order filter, it is sent to the converter for A / D conversion, and the analog signal is converted into a digital signal quantity that the processor can recognize.

[0019] (2) Collect the status of the auto-zero flag bit and judge

[0020] After step (1) is completed, collect the flag status bit of the automatic zero adjustment and judge the status of the flag bit. If it is true, it will enter the next step of the zero adjustment program. If it is false, it will exit the automatic zero adjustment program and end.

[0021] (3) Whether the absolute value of the zero transition value is greater than the stable value

[0022] After step (2) is completed, compare the absolute value of the zero transition value with th...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses an automatic zero setting method of a servo control system, and the automatic zero setting method comprises the steps of collecting, comparing a stable threshold, and adjusting and updating. The automatic zero setting method of the servo control system, provided by the invention, comprises: periodically collecting the sum of compensation values of an input control signal and a zero setting signal, and if the value is larger than the stable threshold, performing a progressive decrease operation on the compensation value of the zero setting signal in the next machine period; on the contrary, performing a progressive increase operation until the superposition value of the compensation values of the input control signal and the zero setting signal is smaller than the stable threshold, and the system considers that a stable state is achieved and can automatically terminate the zero setting process. To meet the requirements of relatively quick response, the size of the sum of the compensation values of the input control signal and the zero setting signal is further judged, and rough adjusting and fine adjusting are performed according to a set quick adjusting threshold, so that both the requirements of quickness and precision are met.

Description

technical field [0001] The invention relates to the technical field of control of a servo system, in particular to a method for automatic zeroing of a servo control system. Background technique [0002] In the servo control system, the traditional zero adjustment is mostly adjusted by installing a mechanical potentiometer on the debugging tooling box. In order to achieve precise adjustment, a multi-turn precision potentiometer must be used to achieve zero point adjustment by manually rotating the potentiometer. This method is not only cumbersome to operate, but also takes a long time to adjust, and the response speed is slow, and it is also not conducive to the realization of precise adjustment. The method of the invention mainly uses a DSP digital signal processor to perform analog-to-digital conversion on the joystick control signal and track and collect it. When the system detects that the control signal is greater than a certain set value when the system is static, it i...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): G05B19/404
CPCG05B19/404G05B2219/50019
Inventor 熊楗笠邓一山李乐耘吕静庞妮娜
Owner CHANGAN AUTOMOBILE (GRP) CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap