一种气体发生器点火失效的识别方法及系统

By using pressure sensors and algorithms to identify effective and ineffective ignition in the gas generator ignition control system, the problems of gas cylinder overpressure and insufficient gas supply caused by mis-ignition of the gas generator are solved, improving system reliability and safety and reducing hardware requirements.

CN116006357BActive Publication Date: 2026-07-17STATE OWNED HONGLIN MASCH FACTORY

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
STATE OWNED HONGLIN MASCH FACTORY
Filing Date
2022-12-30
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

In existing technologies, relying solely on pressure thresholds for determination makes it easy to ignite another gas generator while one is already in operation, leading to overpressure safety hazards in the gas cylinders and failing to effectively prevent insufficient gas supply caused by ignition failure.

Method used

When the gas generator receives an ignition command, it uses a pressure sensor to obtain the pressure value inside the gas cylinder. Combined with features such as pressure difference and time difference, it can identify whether the ignition is effective or not, avoid misjudgment, and ensure the stability of the gas cylinder pressure.

Benefits of technology

It effectively avoids the safety hazards of insufficient gas supply and overpressure of gas cylinders caused by ignition failure, improves the working reliability and fault tolerance of solid attitude control power system, and reduces hardware redundancy and cost.

✦ Generated by Eureka AI based on patent content.

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Abstract

本发明涉及固体姿控发动机技术领域,尤其涉及一种气体发生器点火失效的识别方法及系统,所述方法包括:在气体发生器接收到点火指令时,通过压力传感器获取气瓶内的压力值,判断气瓶内的气压值是否低于预设阈值,若低于预设阈值,则判断对应的气体发生器发生点火失效;获取有效点火的气体发生器数量,若所有的气体发生器都点火失效,则进一步判断点火气压值于所述预设阈值的差值;若气压差值小于设定的增额阈值,则补充另一套气体发生器,直至气压差值大于或等于设定的增额阈值。本发明通过点火有效和点火失效两种工况下气瓶压力变化特征的识别方法,能够有效避免出现点火失效造成的供气不足问题,提高固体姿控动力系统工作可靠性和容错能力。
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