Fly-by-wire control brake system capable of selecting braking modes for single-wheel dual-brake mode of airplane

A fly-by-wire control brake system capable of selecting braking modes for a single-wheel dual-brake mode of an airplane comprises a brake command sensor, a control box, an electro-hydraulic servo valve, a hydraulic switch, a solenoid valve and an airplane wheel speed sensor. The airplane wheel speed sensor, the control box and the electro-hydraulic servo valve form a brake slipping prevention control part. The hydraulic switch and the solenoid valve are used for achieving selection of the braking modes. According to the selection of the braking modes, either a small brake device is selected to operate so that partial braking of an airplane wheel can be achieved, or the small brake device and a large brake device are selected to operate simultaneously so that dual braking of the airplane wheel can be achieved. The fly-by-wire control brake system is suitable for the single-wheel dual-brake airplane wheel provided with a carbon brake, the requirement of the single-wheel dual-brake airplane wheel for selecting t