PNEUMATIC CONTROL SYSTEM OF AIR SPRING FOR VEHICLE

摘要

PURPOSE: An air pressure control system of an air spring for a vehicle is provided to smoothly supply or discharge compressed air according to the road situation during driving a vehicle by measuring the pressure value of the compressed air in the air spring. CONSTITUTION: An air pressure control device of an air spring(AS) for a vehicle comprises a compressor(100), a fill valve(200), a first pressure sensor(300), a discharge valve(400), and a second pressure sensor(500). The compressor supplies compressed air to the air spring. The fill valve is opened or is closed by a control unit(CU) mounted on the vehicle. The first pressure sensor is arranged between the compressor and the fill valve and measures the pressure of the supplied compressed air. The discharge valve is mounted on an exhaust pipe(E) and discharges the compressed air from the air spring. The second pressure sensor is arranged between the fill valve and the air spring and measures the pressure of the air spring in real-time.