On-board absolute speed sensors would be very useful in automotive applications in order to perform the measurement of the speed independently of the wheel rotation. Narrow beam Doppler sensors give a good accuracy but only operate if there is a reflection obstacle in the antenna footprint on the road. Broad beam Doppler sensors have the advantage of offering a higher probability of getting a reflected wave, but they require multiple frequencies. A novel sensor is presented. It uses a single frequency emission, which leads to low cost devices. Simulations and measurements have been carried out which show that it is particularly well adapted to high-risk situations, for instance icy or very wet road surfaces, when only a few reflecting obstacles are present. In such situations, the accuracy of the measurement is typically of the order of 0.5 per cent.


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    Titel :

    A broad beam Doppler speed sensor for automotive applications


    Weitere Titelangaben:

    Breitstrahl-Doppler-Geschwindigkeitssensor für den Einsatz in Automobilen


    Beteiligte:
    Corbrion, C. (Autor:in) / Ditchi, T. (Autor:in) / Hole, S. (Autor:in) / Carreel, E. (Autor:in) / Lewiner, J. (Autor:in)

    Erschienen in:

    Sensor Review ; 21 , 1 ; 28-32


    Erscheinungsdatum :

    2001


    Format / Umfang :

    5 Seiten, 6 Bilder, 4 Quellen




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Print


    Sprache :

    Englisch




    On board doppler sensor for absolute speed measurement in automotive applications

    Ditchi,T. / Hole,S. / Corbrion,C. et al. | Kraftfahrwesen | 2002


    On board Doppler sensor for absolute speed measurement in automotive applications

    Ditchi, T. / Hole, S. / Corbrion, C. et al. | Tema Archiv | 2002


    On Board Doppler Sensor for Absolute Speed Measurement in Automotive Applications

    Corbrion, Céline / Lewiner, Jacques / Holé, Stéphane et al. | SAE Technical Papers | 2002


    A broad beam doppler effect sensor for the measurement of the absolute speed of a vehicle

    Corbrion,C. / Ditchi,T. / Hole,S. et al. | Kraftfahrwesen | 2001


    A BROAD BEAM DOPPLER EFFECT SENSOR FOR THE MEASUREMENT OF THE ABSOLUTE SPEED OF A VEHICLE

    Corbrion, C. / Ditchi, T. / Hole, S. et al. | British Library Conference Proceedings | 2001