Method and the device for laboratory assessment of the rolling resistance of automobile tyres on road surfacing with different texture and stiffness

摘要

a laboratory evaluation of rolling resistance tyres on road surfaces with different motor texture and stiffness, in which the test wheel is suspended for a specified amount of the sample perpendicular road surface and using the measurement system records a location. centre wheel in relation to the sample surface.subsequently, measuring wheel is freely on the sample surface and recorded changes in the position of the center, then compares the registered temporary movements, vibration amplitudes of the theoretical przebiegami designated in the mathematical model, in which the core variables the tyre stiffness and damping coefficient are.as a result of the evaluation coefficient is adopted damping, for which theoretical characteristics of temporal amplitude vibration is most similar to the registered.the subject of the invention is also a device is accompanied in the measurement system (8), and the measuring wheel (3) shall be weighted down is a limp (6) and in a position of rest by measuring (3) is based on a sample of test road surface (2) affixed to a rigid and hard share awie (1), with a rocker (4) is equipped with a hook (7).