Patent ID: 9238392
Filing Date: 2016-01-19
CPC Classification: B60G

Claim Text:
1. An air suspension device for a vehicle with at least one axle, comprising: a plurality of air-spring bellows; at least one compressed-air supply; an air vent; a valve block for aerating the air-spring bellows with compressed air from the at least one compressed-air supply or for venting the air-spring bellows through the air vent; and air-bellows valves being assigned to corresponding ones of the air-spring bellows, for individually aerating and venting the air-spring bellows, wherein the valve block includes the air-spring bellows, and wherein the valve block includes a valve device which simultaneously decouples the air-bellows valve from the compressed-air supply and from the air vent, and a pressure sensor measuring air pressure in a flow path between the valve device and the air-bellows valves is provided on an other side of corresponding air-spring bellows, the other side being different from that of the corresponding air-spring bellows with respect to the air-bellows valves; wherein the pressure sensor is situated at a central point with respect to the flow path between the valve device and the air-bellows valve, so that the valve device ensures that the pressure in the flow path between the valve device and the respective air-bellows valve does not dynamically change and that a constant pressure sets in, so that the pressure sensor is not acted upon by the dynamic air-bellows pressures but is acted upon by the static air-bellows pressures necessary for measuring a load, and wherein sequential connection of the air-bellows valves provides that the pressure sensor may be connected to the respective air-spring bellows for individually measuring pressure, so that only a single pressure sensor is used for any number of air-spring bellows.