Double-air-source system of electric vehicle and method and system for controlling same

The invention discloses a double-air-source system of an electric vehicle and a method and system for controlling the double-air-source system of the electric vehicle. A first air compressor and a second air compressor in the double-air-source system are controlled by a control module. An air outlet of the first air compressor is connected with a brake loop of the electric vehicle through a first pipeline. An air outlet of the second air compressor is connected with the brake loop through a second pipeline. By the adoption of the double-air-source system, due to the fact that the first air compressor and the second air compressor are used as standby air sources for each other, the reliability of the air source system and the reliability of the brake loop are improved, and safe operation of the electric vehicle is guaranteed. When the second air compressor is used as the engine air compressor, due to the fact that the first air compressor can be used as an air source of the brake loop, the pure electric mode can be selected as the working mode of the whole vehicle when the first air compressor works and the second air compressor is on standby; in this way, air supply work of the double-air-source system cannot disturb normal switching between the work modes of the whole vehicle, and decoupling between air supply work and working mode switching of the whole vehicle is achieved.