Air treatment unit, air management system, pneumatic system and vehicle

The invention relates to an air treatment unit, an air management system, a pneumatic system and a vehicle. The air treatment unit includes: an inlet port; an air drying unit; and a supply line configured to exchange, in particular supply, dry compressed air between the air drying unit and the supply port, and a return pneumatic line configured to exchange, in particular return, compressed air of the supply port to the air drying unit, the return control unit comprises an electrically controlled valve and is arranged and configured to enable compressed air returned during the regeneration phase to flow from the return pneumatic line via the electrically controlled valve and via the supply line and the air drying unit to the pneumatic exhaust line according to an electrically controlled signal. According to the invention, the electric control valve is arranged as a single and unique electric control valve of the backflow control unit. 本发明涉及空气处理单元、空气管理系统、气动系统和车辆。空气处理单元包括：入口端口；空气干燥单元；以及供应管线和返回气动管线，该供应管线被构造用以在空气干