Airplane pressure refueling control device and method

The invention belongs to the technical field of aircraft electrical control, and particularly relates to an aircraft pressure refueling control device and method, which comprises an aircraft direct current power supply, a pressure refueling control switch, a fuel oil electric switch, a full oil indicating lamp, a refueling indicating lamp, a full oil switch, a control relay, a differential pressure annunciator and a fault indicating lamp. Wherein the airplane direct-current power supply is connected with the pressure refueling control switch and the control relay, the pressure refueling control switch is connected with the fuel oil electric switch, the fuel oil electric switch is connected with the full oil indicating lamp and the refueling indicating lamp, the pressure refueling control switch is connected with the full oil switch, and the full oil switch is connected with the fuel oil electric switch'closing 'control circuit. A coil of the control relay is connected with a pressure difference annunciator, a