Patent ID: 7396029

Claim:
An air-spring device for a vehicle, comprising: a first valve block assigned to a rear axle, the first valve block including a central valve for aerating and venting air-spring bellows of the rear axle; a second valve block assigned to a front axle, for aerating and venting air-spring bellows of the front axle, wherein the valve block assigned to the front axle includes a pneumatic pilot-operation connection for pneumatic-electric pilot operation; and a selector-valve device having a pressure outlet and at least a first pressure inlet and a second pressure inlet; wherein the central valve of the first valve block assigned to the rear axle selectively connecting one of: a) a compressed-air supply, to both i) the air-spring bellows of the rear axle, and ii) a supply-pressure connection of the second valve block assigned to the front axle; and b) both i) the supply-pressure connection of the second valve block assigned to the front axle, and ii) the air-spring bellows of the rear axle, to an air vent; and wherein the pneumatic pilot-operation connection of the second valve block assigned to the front axle is connected to the pressure outlet of the selector-valve device, whereby the first pressure inlet is connectable, via the central valve of the second valve block assigned to the rear axle, to one of the compressed-air supply and the air vent, and the second pressure inlet is connectable to at least one of the air-spring bellows of the front axle, and wherein the selector-valve device switches through the higher of the pressures applied to the first and second pressure inlets to the pressure outlet.