Aircraft brake system air-ground signal control method

The invention relates to an aircraft brake system air-ground signal control method, which realizes control of an aircraft brake system air-ground signal through an air-ground signal control circuit, determination of a magnetic latching relay, determination of an aircraft ground signal, determination of an aircraft air signal and determination of aircraft air-ground control logic. Magnetic latching relays are added to an undercarriage system floor switch and an undercarriage retracting in-place switch of an original aircraft braking system electrical control system respectively, and the ground state of an aircraft is determined through the undercarriage system floor switch and the magnetic latching relays. The air state of the aircraft is determined by an undercarriage retracting in-place switch and a magnetic latching relay; the problem that air/ground signals of an aircraft are unstable and unreliable due to repeated disconnection and connection of a landing gear system landing switch in the aircraft landing