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A Dynamic Compensation Control Method Based on Multi-stage Oil Cylinder Erection System

A dynamic compensation, oil cylinder technology, applied in fluid pressure actuation devices, servo motors, mechanical equipment, etc., can solve problems such as poor control accuracy and time instability

Inactive Publication Date: 2011-12-07
BEIJING MECHANICAL EQUIP INST
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a dynamic compensation control method based on a multi-stage oil cylinder erection system to solve the problems of poor control accuracy and time instability of the hydraulic system under the action of load characteristics, temperature characteristics and environmental factors

Method used

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Examples

Experimental program
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Effect test

Embodiment Construction

[0013] The specific steps of a dynamic compensation control method based on a multi-stage oil cylinder erecting system are as follows:

[0014] The first step is to build a multi-stage cylinder erection system

[0015] Multi-stage oil cylinder erecting system, including: upper computer, proportional valve power amplifier board, multi-stage oil cylinder, hydraulic oil source, proportional speed control valve, one-way balance valve, inclination sensor; hydraulic oil source, proportional speed control valve, one-way balance The valve is connected in series with the multi-stage oil cylinder, the proportional speed regulating valve is connected in series with the cable of the proportional valve power amplifier board, the liquid pendulum is connected in series with the cable of the upper computer; the bottom plate of the upper computer is connected in series with the power amplifier board of the proportional valve.

[0016] The second step: the proportional speed regulating valve co...

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Abstract

The invention discloses a dynamic compensation control method based on a multi-stage oil cylinder erecting system. Firstly, a multi-stage oil cylinder erecting system is built; After the valgus point, the one-way balance valve establishes back pressure in the rod cavity of the erecting cylinder to balance the valgus moment of the launching cylinder; after the multi-stage cylinder is erected to 89 degrees, the upper computer performs differential calculation on the feedback angle of the inclination sensor, If the vertical angular velocity is less than 2' / s, the upper computer increases the output current of the proportional valve amplifying board, and if the vertical angular velocity is greater than 6' / s, the upper computer reduces the output current of the proportional valve amplifying board. When the erecting angle reaches 90 degrees, stop erecting. The method improves the control precision, stabilizes the erection time, and can meet the application requirements of high-precision and rapid erection systems of other launching vehicles.

Description

technical field [0001] The invention relates to a dynamic compensation control method, in particular to a dynamic compensation control method based on a multi-stage oil cylinder erecting system. Background technique [0002] There are many dynamic compensation control methods for the erecting system of the launching vehicle, which are generally divided into hydraulic position feedback dynamic compensation control methods and electro-hydraulic dynamic compensation control methods. The hydraulic position feedback dynamic compensation control method mainly corrects the motion speed of the erecting system through the displacement sensor of the actuator, and is suitable for the actuator of the erecting system as a short-stroke single-stage cylinder. The electro-hydraulic dynamic compensation control method mainly corrects the movement speed of the hydraulic open-loop system through the control algorithm, and is mostly used in the erection system of the large-stroke multi-stage cy...

Claims

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Application Information

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IPC IPC(8): F15B11/05
Inventor 陈志军刘君茹张利剑
Owner BEIJING MECHANICAL EQUIP INST
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