Recently, many algorithms have been developed for airbag system to reduce head injury during the crash. Most of these algorithms are based on a single-point electronic accelerometer placed in the passenger compartment. This accelerometer is expected to overcome the limitations of the current distributed mechanical sensors which is costly and ineffective to trigger the airbag on time for different types of crashes. The electronic sensor is more effective in the sense that the signal from the accelerometer can be digitized and analyzed to study the behavior of the signal for different types of crashes. Unfortunately, most of the algorithms which are based on a single-point accelerometer still have several problems, they fail to trigger the airbag on time for several types of high speed crashes such as pole and angle crashes, or if they do trigger at these crashes they will also trigger at low speed barrier crashes. Some of these algorithms study the first and second integral of the signal to get the change in vehicle velocity and the change in occupant position with respect to the car, other algorithms first filter the signal at a random low cutoff frequency and make different analyses. This paper presents a new algorithm for airbag control. In order to develop the algorithm first the authors analyzed the unfiltered accelerometer signal in time domain, then they studied the frequency response of the signal and analyzed its components and their effects on the signal. After that they studied the filtered accelerometer signal in time domain, and finally they developed an algorithm based on their observation.


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    Titel :

    Development of a decision making algorithm for airbag control


    Weitere Titelangaben:

    Entwicklung eines Entscheidungsfindungsalgorithmus für die Airbag-Überwachung


    Beteiligte:
    Alrabady, A.I. (Autor:in) / Mahmud, S.M. (Autor:in)


    Erscheinungsdatum :

    1993


    Format / Umfang :

    4 Seiten, 9 Bilder, 1 Tabelle, 6 Quellen



    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




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