Vehicle seat having a device for level regulation and level stabilization

A method for level regulation and level stabilization of a vehicle seat upper part of a vehicle seat, wherein the vehicle seat has an upper vehicle seat upper part which can be displaced by an air spring relative to a vehicle seat lower part, wherein the air spring is fluidically connected to a working volume of an additional volume module and a pressure in the air spring is changed by the working volume, comprising the method steps:

• a) occupying the vehicle seat upper part with a mass;
• b) setting a first distance between the vehicle seat lower part and the vehicle seat upper part by filling the working volume and the air spring by a compressor with a required amount of fluid and deactivating the compressor after the filling process;
• c) detecting a change in the first distance due to a movement of the vehicle seat lower part and the vehicle seat upper part relative to one another;
• d) changing the pressure in the air spring by changing a volume of the working volume, wherein in the event of an increase in the first distance due to the relative movement, the volume of the working volume is decreased, and in the event of a decrease in the first distance due to the relative movement, the volume of the working volume is increased, so that the pressure in the air spring is adapted such that a second distance between the vehicle seat upper part and a reference surface that does not change in position is substantially unchanged.