Method and device for testing a built-in vibration damper of a motor vehicle

摘要

The method involves detecting amplitudes of a wheel vibration and a mounting vibration. An amplitude ratio is determined as a function of a controllable excitation frequency of a preset frequency range in a specific transfer function from the detected amplitudes. A damping measure of the vibrations is evaluated in a specific distinct resonance area (fr) characterized by a distinct amplitude increase (Amax). The evaluated measure is compared with a fixed reference value. An incorrect vibration damper is determined if the evaluated damper measure deviates from the preset reference value. An independent claim is also included for a device for testing a vibration damper of a motor vehicle in an installed condition.