Device for height level determination

A device for determining the height level in a vehicle having a chassis (3) with a plurality of vehicle wheels (10, 11, 12, 13) which stand or roll on a ground surface (26), a vehicle body (2) carried on the chassis (3), which body is connected by vehicle springs (20) to unsprung components of the chassis (3), which include the vehicle wheels (10, 11, 12, 13), which are articulated to the vehicle body (2) by suspension control arms (16), the device comprising:

• a plurality of sensor arrangements (27, 37, 38, 39, 40) of which at least one body sensor arrangement (27) is provided on the vehicle body (2) and one or more chassis sensor arrangements are provided on the unsprung components of the chassis (3) and/or on the suspension control arms, wherein each sensor arrangement comprises at least one or more acceleration sensors (28, 29, 30;
• 34, 35, 36) by means of which translational accelerations in different spatial directions (x, y, z) can be determined and acceleration signals (Sx, Sy, Sz;
• Fx, Fy, Fz) that characterize the accelerations can be generated;
• and
• an evaluation unit (42) connected to the plurality of sensor arrangements (27, 37, 38, 39, 40);
• wherein the body sensor arrangement 27 comprises at least one rotation sensor by means of which rotation movements about different rotation axes can be determined and body rotation movement signals (Syz, Szx, Szy) that characterize the rotation movements can be generated,
• wherein by means of the evaluation unit (42), one or more wheel strokes (h) of the vehicle wheels can be determined from the acceleration signals (Sx, Sy, Sz;
• Fx, Fy, Fz) and the body rotation movement signals (Syz, Szx, Szy).