The invention provides a resolving method for low-energy alarm of a large fire-extinguishing amphibious aircraft, and the method comprises the steps: calculating an energy angle of the aircraft through a glide angle signal and a ground speed change rate signal of the aircraft; calculating the current energy level value of the airplane according to the current attack angle of the airplane and the energy angle calculated in the step 1; according to the flap skewness and the torque pressure average value of the engine, the minimum energy state allowed by the aircraft is calculated; comparing the current energy level value and the lowest energy state of the aircraft, and when the current energy level value of the aircraft is lower than the allowed low energy state, the flap is in a put-down state, high-attack-angle protection is not triggered, and the radio height signal is not lower than 100ft and not higher than 2000ft, indicating that the aircraft is in the low energy state; and when the airplane is in a low-energy state, and the duration time exceeds 0.5 second, triggering low-energy alarm. According to the method, the logic structure is simple, and the energy state of the airplane can be conveniently and rapidly calculated in real time through the parameter signals measured by the airborne sensor.

    本发明提出了一种大型灭火水陆两栖飞机低能量告警的解算方法,包括:通过飞机下滑角信号、地速变化率信号,计算飞机的能量角;通过飞机当前迎角和步骤1计算的能量角,计算飞机当前的能量水平值;通过襟翼偏度、发动机的扭矩压力平均值,计算飞机允许的最低能量状态;比较飞机当前的能量水平值和最低能量状态,当飞机当前的能量水平值低于允许的低能量状态,且襟翼处于放下状态,且没有触发高迎角保护,且无线电高度信号不低于100ft且不高于2000ft,则表示飞机处于低能量状态;当飞机已处于低能量状态,持续时间超过0.5秒后,则触发低能量告警。本发明逻辑结构简单,通过机载传感器测得的参数信号,可以方便、快速且实时的计算飞机的能量状态。


    Zugriff

    Download


    Exportieren, teilen und zitieren



    Titel :

    Resolution method for low-energy alarm of large fire-extinguishing amphibious aircraft


    Weitere Titelangaben:

    一种大型灭火水陆两栖飞机低能量告警的解算方法


    Beteiligte:
    LIAO HAIJUN (Autor:in) / ZHONG HAOHAO (Autor:in) / ZHOU LISHENG (Autor:in)

    Erscheinungsdatum :

    2022-12-30


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    G06F ELECTRIC DIGITAL DATA PROCESSING , Elektrische digitale Datenverarbeitung / B64C AEROPLANES , Flugzeuge / G01D MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE , Anzeigen oder Aufzeichnen in Verbindung mit Messen allgemein



    Online sideslip angle estimation method for large fire extinguishing amphibious aircraft

    LIAO HAIJUN / ZHANG LING / QIN HEJUN | Europäisches Patentamt | 2022

    Freier Zugriff

    Sliding water drawing pipeline of amphibious fire extinguishing aircraft

    YANG WEI / LIU MUJUN / KE ZENGYAN | Europäisches Patentamt | 2024

    Freier Zugriff

    Real-time online weight estimation method for large fire-extinguishing amphibious aircraft

    LIAO HAIJUN / WANG ZHENGHUA / CHENG ZHIHANG | Europäisches Patentamt | 2022

    Freier Zugriff

    Cabin pressure adjusting method for fire extinguishing task scene of amphibious aircraft

    LIU DENGCHENG / NING HUANLI / LIU LIANGWEN et al. | Europäisches Patentamt | 2022

    Freier Zugriff

    Amphibious aircraft fire fighting enhancement

    CORDANI PETER / STRUZZIERO MATTHEW E / KLEIMAN EDWARD G et al. | Europäisches Patentamt | 2017

    Freier Zugriff