Check patentability & draft patents in minutes with Patsnap Eureka AI!

Method for determining control parameters of servo controller for electro-hydraulic linear displacement servo system

A servo controller and servo system technology, applied in the field of electro-hydraulic servo system, can solve the problems that the performance of linear displacement servo cannot meet engineering requirements, the debugging of electro-hydraulic linear displacement servo system is time-consuming and laborious, and the control parameters of servo controller are blindly determined. Achieve the effect of improving static and dynamic performance, reducing blindness, and high dynamic tracking accuracy

Inactive Publication Date: 2012-07-11
JIANGSU UNIV OF SCI & TECH
View PDF4 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This results in blind determination of the control parameters of the servo controller, time-consuming and laborious debugging of the electro-hydraulic line displacement servo system, and the performance of the line displacement servo is difficult to meet the engineering requirements

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
  • Method for determining control parameters of servo controller for electro-hydraulic linear displacement servo system
  • Method for determining control parameters of servo controller for electro-hydraulic linear displacement servo system
  • Method for determining control parameters of servo controller for electro-hydraulic linear displacement servo system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0036] In order to deepen the understanding of the present invention, the following combination figure 1 , 2, 3 and 4 further describe the present invention in detail, and this embodiment is only used to explain the present invention, and does not constitute a limitation to the protection scope of the present invention.

[0037] figure 1 It is a block diagram of the electro-hydraulic line displacement servo system according to the embodiment of the present invention. The electro-hydraulic line displacement servo system is composed of a line displacement command signal generator 110, a servo controller 120, a power amplifier 130, a servo object 140, a line displacement detection sensor 150 and a hydraulic source 160; the servo controller 120 is composed of a comparator 121 , intelligent integrator 122, integral coefficient K i Multiplier 123, first subtractor 124, second subtractor 125, feedback coefficient K f Multiplier 126, differential coefficient K d Multiplier 127 an...

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 a method for determining control parameters of a servo controller for an electro-hydraulic linear displacement servo system. The servo system comprises a linear displacement command signal generator, the servo controller, a servo object and a linear displacement detection sensor. The servo controller comprises a comparator, an intelligent integrator, an integral coefficient multiplier, a subtractor and a feedback coefficient multiplier. According to the method for quantitatively determining the control parameters of the servo controller for the electro-hydraulic linear displacement servo system by adopting a step response method, the equivalent viscous damping coefficient and the equivalent mass of the servo object are identified according to the difference method of longitudinal coordinates of two straight lines, the maximum input voltage which corresponds to the maximum output flow rate is determined according to the maximum output flow rate of the selected electro-hydraulic servo valve, the maximum value of the linear displacement command signal is set according to the actual requirement of the linear displacement, and the integral coefficient, the feedback coefficient and the differential coefficient are obtained according to the equivalent viscous damping coefficient, the equivalent mass, the maximum input voltage and the maximum value of the linear displacement command signal.

Description

Technical field: [0001] The invention relates to an electro-hydraulic servo system, in particular to a method for determining control parameters of a servo controller in a line displacement servo system of a valve-controlled hydraulic cylinder. Background technique: [0002] In the electro-hydraulic servo system, the electro-hydraulic line displacement servo is often encountered in some mechanical equipment, such as the expansion and contraction of the mechanical arm, the feed movement of the processing equipment, and the transmission of the workpiece in the automated production line. In the electro-hydraulic linear displacement servo system, the variable of the electro-hydraulic servo is the linear displacement of the mechanical load movement. In order to obtain excellent linear displacement servo performance, the electrohydraulic linear displacement servo system must adopt closed-loop control. That is to say, the linear displacement of the moving parts in the mechanical e...

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): F16K31/12F16K31/00
Inventor 曾文火朱鹏程
Owner JIANGSU UNIV OF SCI & TECH
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com