The invention provides a method for starting a hydraulic pump by a power supply system in an emergency power supply mode of an airplane, a time delay relay is arranged on a control loop circuit of a transformer rectifier contactor ETRUC of the airplane, and the method comprises the following steps: determining that the airplane enters the emergency mode; in response to determining that the aircraft enters the emergency mode, determining whether the airspeed of the aircraft is greater than an offload threshold; and if it is determined that the airspeed of the aircraft is greater than an offload threshold, operating a delay relay wherein during a power-on delay time of the delay relay, the ETRUC is open, the RAT of the aircraft only powers the AC ESS BUS and the DC ESS BUS is powered by the battery, and wherein after the power-on delay time of the delay relay, the ETRUC is closed, both the AC ESS BUS and the DC ESS BUS are powered by the RAT. According to the invention, normal starting of the electric hydraulic pump in the emergency mode can be ensured.

    本发明提供了一种用于飞机应急供电模式下电源系统起动液压泵的方法,其中在飞机的变压整流器接触器ETRUC的控制回路电路上设置有延时继电器,该方法包括:确定飞机进入应急模式;响应于确定飞机进入应急模式,确定飞机的空速是否大于卸载阈值;以及如果确定飞机的空速大于卸载阈值,则使延时继电器工作,其中在延时继电器的通电延时时间期间,ETRUC断开,飞机的RAT仅供电AC ESS BUS并且DC ESS BUS由蓄电池供电,并且其中在延时继电器的通电延时时间之后,ETRUC闭合,AC ESS BUS和DC ESS BUS均由RAT供电。通过本发明,能够确保在应急模式下使电动液压泵正常起动。


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    Title :

    Method for starting hydraulic pump by power supply system in emergency power supply mode of airplane


    Additional title:

    飞机应急供电模式下电源系统起动液压泵方法


    Contributors:
    ZHAO WENHAO (author) / YANG YIWEI (author) / WANG XI (author)

    Publication date :

    2023-10-10


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B64D Ausrüstung für Flugzeuge , EQUIPMENT FOR FITTING IN OR TO AIRCRAFT / F04B Verdrängerkraft- und Verdrängerarbeitsmaschinen für Flüssigkeiten , POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS / H02P CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS , Steuern oder Regeln von elektrischen Motoren, elektrischen Generatoren, dynamoelektrischen Umformern



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