The invention discloses an inflation and time-sharing exhaust control method for a buffer airbag of a spacecraft. The method comprises the following steps: setting a synchronization signal waiting time parameter; when the spacecraft buffer airbag reaches the airbag inflation discrimination height, sending an airbag inflation instruction according to the synchronization signal waiting time parameter; when the overload information reaches a preset threshold value, it is judged that the reentry capsule lands; the posture of the return capsule is judged, and if the quadrant III faces forwards, an exhaust mode with the quadrant III facing forwards is started; if the quadrant I faces forwards, entering an I-quadrant forward exhaust mode; if the posture is not judged out after the preset time, all the air bags are controlled to be exhausted at the same time, and exhausting is finished. According to the invention, the problem of non-synchronization of air bag inflation instructions caused by inter-board difference of a redundancy control system can be solved.

    本发明公开了一种航天器缓冲气囊充气与分时排气控制方法,包括:设置等待同步信号时间参数;当航天器缓冲气囊到达气囊充气判别高度时,根据等待同步信号时间参数,发送气囊充气指令;当过载信息到达预先设定的阈值,判断返回舱着陆;判断返回舱的姿态,若为Ⅲ象限朝前,则进入Ⅲ象限朝前排气模式;若为Ⅰ象限朝前,则进入Ⅰ象限朝前排气模式;若超过预定时间未判断出姿态,则控制所有气囊同时排气,排气结束。本发明能够解决冗余控制系统由于板间差异带来的气囊充气指令不同步问题。


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    Title :

    Spacecraft buffer airbag inflation and time-sharing exhaust control method


    Additional title:

    一种航天器缓冲气囊充气与分时排气控制方法


    Contributors:
    SUN XIYUN (author) / LEI JIANGLI (author) / JIA HE (author) / DENG LI (author) / ZHU MEIFANG (author)

    Publication date :

    2024-12-10


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B64G Raumfahrt , COSMONAUTICS



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