Patent ID: 8348634

Claim:
A device for the processing of compressed air for a commercial vehicle, comprising: an inlet connection for connecting a compressor; a vent; a compressor control outlet, said control outlet configured to supply pressure to a control inlet of the compressor, a pneumatically activatable shut-off valve, said shut-off valve arranged downstream of the inlet connection in the flow direction and operable to be transferred between an open to a closed state by application of pneumatic pressure; an air dryer unit downstream of the shut-off valve; a pneumatically activatable pressure regulating valve arranged between an outlet connection of the shut-off valve and the vent and operable to be transferred between a closed to an open state by application of pneumatic pressure; and a compressor control device, said control device having a first solenoid valve configured such that when in an excited state, the first solenoid valve supplies compressed air to a control inlet of the shut-off valve to transfer the shut-off valve to the closed state and supplies compressed air to the compressor control outlet to close a line between the compressor control outlet and the vent, thereby ensuring a pressure in a line between the compressor and the shut-off valve is essentially maintained, and a second solenoid valve configured such that when in an excited state, the second solenoid valve allows a backflow of compressed air through the air dryer unit and the pressure regulating valve to the vent, and allows a control inlet of the pressure regulating valve to be acted upon with compressed air.