Abstract: In order to rapidly and inexpensively deliver information regarding the load status of a motor vehicle, in particular, a utility vehicle with at least one axle that is suspended on pneumatic springs, there is arranged a sensor for measuring the bellows pressure and one additional sensor for measuring the spring travel on each of the pneumatic springs used in the wheel suspensions of the motor vehicle, and to additionally process the pressure and the spring travel in an electronic control unit. In this case, the spring forces preferably are calculated and displayed first, whereafter the wheel forces and ulitmately the position of the center of gravity, as well as the total weight and/or the weight of the net load, are calculated and displayed. The information regarding the load status preferably is also utilized as an input quantity for other safety systems, e.g., for lowering a lift axle, for issuing a warning and/or for throttling the speed in accordance with the respective requirements.

Abstract: A unidirectional pneumatic vehicle tire has a symmetric radial carcass and a symmetric package of belt plies placed on the carcass. The tire tread of an asymmetric tread design has at least three longitudinal grooves having a depth of 12 mm to 18 mm. The tire tread has an axially outer wide tread rib, positioned, when mounted on a vehicle, so as to face outwardly relative to the vehicle. The wide tread rib has a width of 25% to 40% of the width of the tire tread when measured at half the depth of an axially outer one of the longitudinal grooves positioned adjacent to the wide tread rib. The wide tread rib is free of any tread voids having a main direction of extension and is selected from the group consisting of longitudinal grooves, longitudinal sipes, transverse grooves, transverse sipes, diagonal grooves, and diagonal sipes. The wide tread rib has tread voids having in a top view of the tire tread a substantially round contour.