A capacitive vehicle seat occupancy detection and classification system includes an impedance measurement circuit and a control and evaluation unit. The impedance measurement circuit is configured for providing periodic electrical measurement signals to a capacitive sensor of N different fundamental frequencies, wherein N is a natural number of at least 3, and to determine a complex impedance from each of determined sense currents in the capacitive sensor. The control and evaluation unit is configured to determine a seat occupancy class for each one of the complex impedances determined at the at least N different fundamental frequencies, and to determine a final seat occupancy class derived by a majority decision among the determined seat occupancy classes.


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    Titel :

    CAPACITIVE SEAT OCCUPANCY DETECTION AND CLASSIFICATION SYSTEM


    Beteiligte:
    LAMESCH LAURENT (Autor:in) / PÜTZ MICHAEL (Autor:in)

    Erscheinungsdatum :

    31.01.2019


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Englisch


    Klassifikation :

    IPC:    B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR / B60N SEATS SPECIALLY ADAPTED FOR VEHICLES , Sitze besonders für Fahrzeuge ausgebildet / H03K PULSE TECHNIQUE , Impulstechnik



    Capacitive seat occupancy detection and classification system

    LAMESCH LAURENT / PUTZ MICHAEL | Europäisches Patentamt | 2019

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    CAPACITIVE SEAT OCCUPANCY DETECTION AND CLASSIFICATION SYSTEM

    LAMESCH LAURENT / PÜTZ MICHAEL | Europäisches Patentamt | 2017

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    Zangl,H. / Bretterklieber,T. / Hammerschmidt,D. et al. | Kraftfahrwesen | 2008


    Seat Occupancy Detection Using Capacitive Sensing Technology

    Hammerschmidt, Dirk / Zangl, Hubert / Bretterklieber, Thomas et al. | SAE Technical Papers | 2008