Method for signal processing of sensor signal of inertial sensor, involves monitoring sensor on troubles and cut off frequency of low pass filter in dependence of presence of trouble and evaluating unfiltered sensor signal

摘要

The method involves monitoring a sensor on troubles and cut off frequency of a low pass filter (2) in dependence of presence of a trouble. An unfiltered sensor signal is evaluated and the cut off frequency of the low pass filter is adapted in dependence of rating of the sensor signal. The gradient of the sensor signal is determined and adapted during an excess of a given threshold cut off frequency of the low pass filter. A diagnosis output (SA) of the sensor is evaluated and adapted with requests of the trouble cut off frequency of the low pass filter. An independent claim is also included for a low pass filter device.