Aircraft takeoff line braking self-help method and electric-drive braking system

The invention relates to an aircraft takeoff line braking self-help method and an electric-drive braking system. By improving braking system configuration and a control method, system accessories areadditionally arranged, the actual braking state of an aircraft takeoff line is judged through a set of method and system, and an electric valve is used for switching an oil circuit in time to enable the braking pressure transporting to braking wheels to meet the requirements of the aircraft takeoff line braking high pressure so as to realize the aircraft takeoff line braking. The aircraft takeoffline braking self-help method and the electric-drive braking system have reasonable design, and simple and easy operation; and the takeoff line braking pressure is not dependent on an electro-hydraulic servo valve, the pressure supply oil circuit is switched by the electric valve, the braking pressure required for the takeoff line braking is provided by a pressure supply source of the aircraft braking system, the steady an