hard u201d characteristic damper curve with the slide element 35 u2032 acting as a counterpart bearing for the second leaf spring packet 34 u2032 the position of the first and second slide element 35 35 u2032 is ascertained by evaluation of the signals from the first and second sensor units 16 18 respectively via the first and second sensor units 16 18 the respective current damping force is ascertained the ascertained pressure value or damping force is compared with a desired pressure value or a desired damping force next via the suitable triggering of the respective drive unit 22 22 u2032 the position of the corresponding slide element 35 35 u2032 is changed as soon as the affected slide element 35 35 u2032 upon the next change of direction of the fluid flow is no longer loaded for the next period the associated slide element 35 35 u2032 is now in its new position and predetermines the desired new damping characteristic via the established springiness of the corresponding leaf spring packet 34 34 u2032 by the described mechanical separation of the tension stage period and the compression stage period an unambiguous and independent regulation can be attained for the two damping forces via the regulation of the flow of damping fluid through the first regulating conduit 17 and the second regulating conduit 19 the adjustment of the slide elements 35 35 u2032 for adjusting the associated springinesses of the leaf spring packets 34 34 u2032 for the tension stage period and compression stage period is advantageously always done during the unloaded.