Wheel, tire and roadway
The wheel-related components of the chassis - i.e. tires, wheels, wheel hubs and wheel bearings - are highly stressed safety-relevant components, the wheel-related components of the chassis - i.e. tires, wheels, wheel hubs and wheel bearings - are highly stressed safety-relevant components, which are arranged directly and unsprung in the load path.
Today's tire cross-sections result in impressive lateral force potential, but especially in the case of tires with integrated run-flat properties - also in pronounced vertical stiffness, which provides an additional force effect. At the same time, the wheel design in particular is a key differentiating feature for the design effect of the vehicle and is therefore not necessarily designed to optimize weight or strength.
Against the background of these multi-layered requirements for functionality and safer service life, wheel-related components have been a focus of Fraunhofer LBF for many years. Starting with wheel testing activities with the first ZWARP laboratory testing facilities in the 1980s, Fraunhofer LBF engineers and scientists are now involved in a wide range of development and testing activities.