Tire pressure control device comprises a compressor (14) and an air supply unit (4.1) having a compressed air storage (23), a tire unit consisting of a tire, an axle valve and a tire valve and connected to the air supply unit, and an electronic control unit (8) for controlling the valves to inflate and deflate the tire. Tire pressure control device comprises a compressor (14) and an air supply unit (4.1) having a compressed air storage (23), a tire unit consisting of a tire, an axle valve and a tire valve and connected to the air supply unit, and an electronic control unit (8) for controlling the valves to inflate and deflate the tire. Compressed air is injected into the tires from the compressed air storage without the support of the compressor or via the compressor to raise the air pressure and injected into the compressed air storage without the support of the compressor or via the compressor to reduce the air pressure in the tire and to charge the compressed air storage to the pressure from the tire or a pressure given by the compressor.
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