Sensor`s e.g. acceleration sensor, mechanical fixation evaluation method for motor vehicle, involves evaluating signals detected by sensor regarding strength in preset frequency areas for concluding quality of mechanical fixation

摘要

The method involves evaluating signals detected by a sensor (5) regarding the strength in preset frequency areas for concluding the quality of mechanical fixations (V1, V2, V3). The strength of the signals in the frequency range is averaged at a preset period, and the averaged strength is evaluated. A spectral power distribution in the signal is evaluated, and the strength of the natural noise and/or the normal driving vibrations in the frequency range is evaluated.