Patent ID: 6836716
Filing Date: 2004-12-28
Classification: B60R

Abstract:
A restraint system, comprising:a restraint device for protecting at least one passenger; an acceleration sensor for measuring an acceleration of a vehicle; an analog/digital converter for converting an output signal of the acceleration sensor into a digital signal corresponding to the acceleration; a processor for performing a wavelet transformation of the digital signal into a frequency signal; a memory; and an actuator for controlling the restraint device, wherein: the processor subdivides the frequency signal into individual frequency ranges, the processor for each frequency range measures a specific maximum signal energy and a specific average signal energy in order to extract a feature, the processor determines a crash type on the basis of the extracted feature, the processor determines from the frequency signal a measure for a braking acceleration energy, and the processor as a function of the measure and of the determined crash type, transmits a control signal to the actuator.