SYSTEM AND OPERATING METHOD FOR LEVEL REGULATION OF A DRIVER'S CAB OF A COMMERCIAL VEHICLE RELATIVE TO THE CHASSIS OF THE VEHICLE

The invention relates to a system for level regulation of a driver's cab (2) of a commercial vehicle relative to a chassis of the vehicle (1) and a corresponding operating method. The system comprises a spring-loaded bearing in order to support the driver's cab (2) in a sprung manner on the chassis of the vehicle (1); a distance sensor means (4) that is arranged to record relative movements and/or a distance between the driver's cab (2) and the chassis of the vehicle (1); and a control means (5; 13) that is arranged for variable control of the spring-loaded bearing, wherein signals of the distance sensor means (4) are used to control the spring-loaded bearing. The spring-loaded bearing can be adjusted to a first height position (h1), so that the distance between the driver's cab (2) and the chassis of the vehicle (1) is controlled by the control means (5; 13) to a first target distance. The spring-loaded bearing can be adjusted to at least one second height position (h2), so that the distance between the driver's cab (2) and the chassis of the vehicle (1) is controlled by the control means (5; 13) to a second target distance, wherein the control means (5; 13) adjusts the spring-loaded bearing to the first (h1) or to the at least one second (h2) height position depending at least on a parameter (6) relating to a driving route and/or a vehicle state.(Fig. 3)