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Time-sharing ignition control algorithm and system based on pressure self-stabilizing design

An ignition control and self-stabilizing technology, which is applied in the direction of mechanical equipment, rocket engine devices, machines/engines, etc., can solve problems such as unsatisfactory use requirements, high pressure and matching of gas storage containers, and achieve high gas utilization efficiency and pressure fluctuations The effect of small scope and waste reduction

Active Publication Date: 2017-12-29
湖北三江航天红林探控有限公司
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AI Technical Summary

Problems solved by technology

When the required air volume of the solid attitude control engine changes or cannot be accurately predicted, usually the fixed sequence control method cannot achieve the matching of the air volume input and output, which will inevitably lead to excessive or insufficient pressure in the air storage container, which cannot meet the use requirements

Method used

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  • Time-sharing ignition control algorithm and system based on pressure self-stabilizing design

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Embodiment Construction

[0035] 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 in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0036] Below in conjunction with accompanying drawing, the present invention is described in further detail:

[0037] Such as figure 1 As shown, the present invention provides a time-sharing ignition control system based on pressure self-stabilization design, including: multiple sets of solid attitude control engine pulse work unit 1, gas st...

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Abstract

The invention discloses a time-sharing ignition control algorithm and system based on the pressure self-stabilization design. The algorithm comprises the steps that exhaust gas flow Qo and time to are predicted through a power device gas kinetic model according to the working condition and operating characteristics of a solid attitude control engine; pressure P of a gas storage container is collected in real time, and the effective gas production amount M in the gas storage container is calculated through an effective gas amount calculation model of the gas storage container; a gas temperature T in the gas storage container is calculated through a gas storage container gas temperature calculation model, and a pressure threshold value is corrected according to the gas temperature T; and based on the principle of using gas input and output to achieve optimum matching, the ignition number and time of a pulse working unit of the solid attitude control engine can be determined by using a control algorithm to compare M with Qo, to and compare P with the pressure threshold value. By the adoption of the algorithm and system, optimum matching between gas production amount pulse input and exhaust gas amount intermittent output is realized, and therefore the pressure fluctuation range of the gas storage container can be made smaller, and gas utilization efficiency is higher.

Description

technical field [0001] The invention relates to the technical field of solid attitude control engines, in particular to a time-sharing ignition control algorithm and system based on pressure self-stabilizing design. Background technique [0002] In the solid attitude control engine, the high temperature and high pressure gas is usually generated by the combustion of propellant or gunpowder to realize the power output. In many applications, the output power is intermittent in time and variable in value. The irregular output of propellant or gunpowder after combustion makes it impossible for the solid attitude control engine to perform gas path opening and closing control and gas path flow control. The usual solution is to connect a series of solid attitude control engine pulse working units with the gas storage container, first store the gas produced by the combustion of propellant or gunpowder in the gas storage container, and then exhaust the gas storage container to genera...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02K9/95
CPCF02K9/95
Inventor 朱方爽郝雪杰邓丽君
Owner 湖北三江航天红林探控有限公司
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