The invention provides a method and device for determining the pressure of a brake air cylinder of a motor train unit, and the method comprises the steps: obtaining the real-time data of a brake air cylinder pressure sensor, and determining the state result of the sensor according to the real-time data of the brake air cylinder pressure sensor; if the state result of the sensor is that pressure value estimation needs to be carried out, opening of an air charging valve and an exhaust valve in an electromagnetic valve is controlled according to preset valve starting time, and a real-time pre-control pressure rising value is obtained; and according to the corresponding relation between the pre-measured pre-control pressure rising value and the air cylinder pressure value, the brake air cylinder pressure estimation value is determined through the real-time pre-control pressure rising value. According to the invention, the hysteresis characteristic of the pressure change of the brake cylinder is utilized, and the action of the electromagnetic valve is controlled, so that the pressure value of the brake air cylinder is determined without depending on a sensor, the pressure value of the brake air cylinder is diagnosed more comprehensively, common faults are discriminated, and the pressure diagnosis requirement of the brake air cylinder is met; and the accuracy, comprehensiveness and availability of pressure value diagnosis are improved.

    本发明提供了一种动车组制动风缸压力确定方法及装置,方法包括:获取制动风缸压力传感器实时数据,并根据所述制动风缸压力传感器实时数据,确定传感器状态结果;若传感器状态结果为需要进行压力值估计,则根据预设的阀门启动时间,分别控制电磁阀中充风阀及排风阀的开启,得到实时预控压力上升值;根据预先测得的预控压力上升值与风缸压力值之间的对应关系,利用实时预控压力上升值确定制动风缸压力估计值。本发明利用了制动缸压力变化的迟滞特性,结合对电磁阀动作的控制,实现不依赖传感器确定制动风缸压力值,更加全面的对制动风缸压力值进行诊断,实现常见故障的判别,满足制动风缸压力诊断需求,提升了压力值诊断的准确性、全面性和可用性。


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    Titel :

    Method and device for determining pressure of brake air cylinder of motor train unit


    Weitere Titelangaben:

    动车组制动风缸压力确定方法及装置


    Beteiligte:
    WANG PENG (Autor:in) / ZHANG YANG (Autor:in) / HAN CHAOXIA (Autor:in) / CAI TIAN (Autor:in) / WEN XIYUAN (Autor:in) / CHENG HONGMING (Autor:in) / AN ZHIPENG (Autor:in) / QI ZHENGLIANG (Autor:in)

    Erscheinungsdatum :

    2022-12-30


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    B60T Bremsanlagen für Fahrzeuge oder Teile davon , VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF



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