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Loading control method of pump and valve composite dual-degree-of-freedom electro-hydraulic motion

A control method and technology of degrees of freedom, applied in the field of simulation, can solve problems such as excess force interference of steering gear motion, and achieve the effects of flexible implementation, high energy utilization efficiency, and reduced throttling loss

Active Publication Date: 2016-10-05
山西亿鑫法兰股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The present invention aims at the problems and deficiencies in the above-mentioned electro-hydraulic load simulation technology, in order to effectively solve the problem of excess force interference caused by the steering gear movement in the semi-physical simulation experiment, improve the accuracy of the semi-physical loading simulation experiment, and solve the problems of the traditional electro-hydraulic load simulation system. To solve the technical problem of heat generation, improve the energy utilization efficiency of the loading system, and provide a pump-valve compound dual-degree-of-freedom electro-hydraulic motion loading control method with compact structure, low throttling loss, and high energy utilization efficiency

Method used

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  • Loading control method of pump and valve composite dual-degree-of-freedom electro-hydraulic motion
  • Loading control method of pump and valve composite dual-degree-of-freedom electro-hydraulic motion

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Embodiment Construction

[0020] The present invention will be further described below with reference to the accompanying drawings.

[0021] The innovation of the present invention is to decompose the motion loading task of the electro-hydraulic load simulator based on the idea of ​​functional division of labor: the first goal is to track the speed synchronous motion of the steering gear and decouple the interference caused by the active motion of the steering gear; Instruction tracking task. Aiming at goal 1, the pump-controlled speed servo subsystem based on speed adjustment is used to achieve, and for task 2, the valve-controlled pressure servo subsystem using an independent pressure source is used to achieve, through the independent coordinated control of the speed servo subsystem and the pressure servo subsystem , to realize the dual-degree-of-freedom control of the speed and output force of the electro-hydraulic load simulator. The invention can not only physically decouple the motion interferen...

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Abstract

The invention discloses a pump-valve composite two-degree-of-freedom electro-hydraulic motion loading control method. According to the method, a pump-valve composite two-degree-of-freedom electro-hydraulic motion loading system is subjected to loading control, a speed servo subsystem and a pressure servo subsystem are subjected to independent coordination by a speed command planner to achieve two-degree-of-freedom servo control of speed and output force of a loading actuator, a speed controller controls rotating speed of a motor according to speed reference commands generated by the speed command planner, control of pressure of a chamber A and a chamber B of the loading actuator is achieved by adjusting displacement of a valve core of a loading valve, and further, the output force of the loading actuator is controlled to equal loading commands. The pump-valve composite two-degree-of-freedom electro-hydraulic motion loading control method achieves physical decoupling of steering engine motion interference, is high in loading precision and energy efficiency and is particularly applicable to high-power loading occasions.

Description

technical field [0001] The invention belongs to the technical field of simulation, and in particular relates to a pump-valve compound double-degree-of-freedom electro-hydraulic motion loading control method for semi-physical simulation experiments. Background technique [0002] During the flight process and attitude adjustment process of the fighter, the rudder surface has to bear huge air resistance. In the development stage of the fighter steering gear system, it is necessary to carry out a simulation loading experiment on the steering gear system, especially during the steering gear action process. Electro-hydraulic load simulator is one of the key equipment for physical simulation experiments. Its main function is to load the steering gear and simulate the real working conditions of the steering gear system under laboratory conditions, so as to evaluate the load performance and structure of the steering gear. strength and robustness of flight control algorithms. [0003...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F15B21/02G06F9/455
CPCF15B21/08F15B2211/6654F15B2211/6656
Inventor 权龙汪成文郝惠敏黄家海董致新
Owner 山西亿鑫法兰股份有限公司
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