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Unilateral quick switch control method for large double top cover mechanism of launch platform

A launch platform and fast switch technology, applied in mechanical equipment, fluid pressure actuation devices, fluid pressure actuation system components, etc., can solve problems such as steady-state errors, achieve damage prevention, smooth switching, and shorten launch preparation time Effect

Active Publication Date: 2017-01-25
BEIJING INST OF SPACE LAUNCH TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When there is only proportional control, there is a steady-state error in the system output (Steady-state error)

Method used

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  • Unilateral quick switch control method for large double top cover mechanism of launch platform
  • Unilateral quick switch control method for large double top cover mechanism of launch platform
  • Unilateral quick switch control method for large double top cover mechanism of launch platform

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Experimental program
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Effect test

Embodiment Construction

[0071] The present invention is described in detail below with reference to accompanying drawing and embodiment:

[0072] In the accompanying drawings, the front top cover is referred to as the front cover for short; the rear top cover is referred to as the back cover for short.

[0073] Such as figure 1 As shown in the system control block diagram, the top cover linkage switch control system consists of two embedded controllers based on the Infineon XC2287M-104F microprocessor, two photoelectric encoders (model 8.5858.3222.2112), and two proportional flow valves (model 2FRE16-4X100LBK4M), 1 proportional relief valve (model DBEM20-5X / 315YG24K4M), 4 solenoid valves (model 4WE10R31B / CG24N9K4). The control system uses dual encoders to measure the opening and closing angles of the front and rear top covers respectively, and sends them to the main controller through the CAN bus; the main controller obtains the opening and closing angles of the front and rear top covers through ang...

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Abstract

A single-side fast opening and closing control method of a large double-top-cover mechanism of a launching platform includes the top cover opening step and the top cover closing step. The single-side fast opening and closing control method is characterized in that the top cover opening step and the top cover closing step are the top cover linkage opening step and the top cover linkage closing step in which PI closed-loop control is adopted. According to the single-side fast opening and closing control method of the large double-top-cover mechanism of the launching platform, based on the characteristics that double top covers are large mechanical structures and large in mass and inertia, corresponding speed reduction angles are set for a front top cover switch and a rear top cover switch in order to avoid that the top covers shake severely when being opened or closed to the stop angles, when the top covers reach the speed reduction angles, the output of a proportional valve is reduced by a control system so that the top covers can be slowed down, and thus the top covers can be opened and closed smoothly and stably.

Description

technical field [0001] The invention relates to a motion control method, in particular to a unilateral rapid switch control method for a large-scale double top cover mechanism of a launching platform. Background technique [0002] With the continuous development of information technology, the requirements for the launch preparation time of the launch platform are getting higher and higher. Short launch preparation time, strong environmental adaptability, and high degree of intelligence have become important development directions for launch platforms in the future. [0003] According to the particularity of the launch platform, if the top cover adopts a single top cover structure design, the structural rigidity will decrease, the top cover will be easily damaged during the fast movement process, and the mass of a single top cover is too large, the control is difficult and the control accuracy is difficult to guarantee; If the two-sided switch is used for control, although th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F15B21/02
Inventor 陆晶李德忠刘云秋吴齐才王忻刘海阳
Owner BEIJING INST OF SPACE LAUNCH TECH
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