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A state parameter acquisition device for electro-hydraulic servo control system

A state parameter and control system technology, applied in fluid pressure actuation devices, fluid pressure actuation system components, fluid pressure actuation system testing, etc., can solve complex unmodeled dynamics, influence control performance, parameter uncertainty and other problems to achieve the effect of improving speed and acceleration response performance, improving accuracy, and increasing static stiffness

Inactive Publication Date: 2019-12-03
TAIYUAN UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the inherent nonlinearity, parameter uncertainty, and complex unmodeled dynamics of electro-hydraulic servo systems seriously affect the improvement of control performance.

Method used

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  • A state parameter acquisition device for electro-hydraulic servo control system
  • A state parameter acquisition device for electro-hydraulic servo control system

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Embodiment Construction

[0013] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are part of the embodiments of the present invention, rather than All the embodiments; based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative work all belong to the protection scope of the present invention.

[0014] Such as figure 1 As shown, the embodiment of the present invention provides an electro-hydraulic servo control system state parameter acquisition device for driving the hydraulic actuator to work, wherein the hydraulic actuator includes an asymmetric hydraulic cylinder 1, a proportional servo valve 2, and a No. 1 fuel tank 3 , accumulator 4, motor 5, one-way quantitative pump 6, oil filter 7, No. 2 fuel tank ...

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Abstract

The invention belongs to the field of electro-hydraulic control, and discloses a state parameter obtaining device used for an electro-hydraulic servo control system. The state parameter obtaining device comprises an acceleration sensor, a position speed sensor, a position giving controller, a position controller, a first-order differential controller, a second-order differential controller, a third-order differential controller, a speed controller, an acceleration controller and a system controller. The state parameter obtaining device performs real-time online acquisition on six state parameters which are displacement, speed, acceleration, displacement deviation, speed deviation and acceleration deviation of the electro-hydraulic servo system, and provides state parameters for the systemcontroller, and the system controller outputs a control signal to drive a hydraulic performing unit to work to improve control performance of the electro-hydraulic servo system according to differentcontrol strategies. The state parameter obtaining device is suitable for realizing controlling various electromechanical-hydraulic cooperative control systems through various state parameters.

Description

technical field [0001] The invention belongs to the field of electro-hydraulic control, and in particular relates to a state parameter acquisition device for an electro-hydraulic servo control system, which is suitable for various types of electro-hydraulic cooperative control systems such as engineering machinery, agricultural machinery, and aerospace. Background technique [0002] Due to its inherent advantages such as fast response, high power, easy control, and easy layout, the hydraulic system is widely used in various mechanical equipment as power devices, transmission systems, and control systems. With the development of mechatronics technology and automation technology The improvement of the electro-hydraulic control system has been widely used in the national defense industry and civilian industrial and agricultural production. In some occasions with high power, fast and accurate response, electro-hydraulic servo control is mostly used. However, the intrinsic nonlin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F15B21/08F15B19/00
CPCF15B19/00F15B21/08
Inventor 高妍白清张红娟田振东郭凌龙靳宝全刘昕王宇王东
Owner TAIYUAN UNIV OF TECH
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