Abstract: An apparatus having a suspension system with a first part which is acted upon by a mass, a second part, and also an air spring arranged between this first part and this second part. At least one supplementary volume device for air is provided, the volume of which can be varied in a controlled manner, and also a first control device for adjusting the volume of the supplementary volume device.

Abstract: There is described a vehicle comprising a spring-mounted vehicle seat (3; 13) in a spring-mounted vehicle cab (2; 12), wherein the vehicle seat (3; 13) is spring-mounted by means of at least one first spring element (24) and/or one first damping element (25) relative to the vehicle cab (2; 12) in the vehicle height and/or vehicle length and/or vehicle width direction, and the vehicle cab (2; 12) is spring-mounted by means of at least one second spring element (15) and/or second damping element (14) relative to a vehicle frame (11) in the vehicle height and/or vehicle length and/or vehicle width direction, comprising a control device (34) which, as a function of a first measured acceleration value of an excursion of the vehicle frame (11), causes a first application of force for regulating the excursion of the first spring element (24) and/or damping element (25) and a second application of force for regulating the excursion of the second spring element (15) and/or the functional element (14), in mutual depend