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Reifenzustandsüberwachung — OFW-Funksensorik für den „intelligenten” Reifen

Wireless monitoring of the actual tire state — SAW sensor technology for the smart tire

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Zusammenfassung

Mit der Realisierung eines „intelligenten Reifens”, der ständig Informationen über seinen aktuellen Zustand an ein Kontrollsystem weitergibt, wird die Sicherheit im Auto erhöht. Das vorgestellte Reifendruck- und Temperaturmesssystem basiert auf der Anwendung von Oberflächenwellen (OFW)-Sensoren. Da OFW-Sensoren durch das Hochfrequenzfeld mit Energie versorgt werden, wird keine Batterie im Reifen benötigt. Ein Prototyp eines Reifendruck- und Temperatursensors mit einer typischen Druckgenauigkeit von ± 15 kPa und einer Höchsttemperatur von 130° C wird vorgestellt.

Abstract

With the realization of a “smart tire”, capable of continuously transmitting information about its actual state, increased safety for passengers is achieved. The presented tire pressure and temperature measuring system is based on the application of surface acoustic wave (SAW) sensors. Since SAW sensors are powered by the energy of the RF field no battery is required inside the tire. The prototype of a tire pressure and temperature sensor featuring a typical pressure accuracy of ± 15 kPa and a heat stability up to 130° C is presented.

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Authors and Affiliations

  1. Johannes Kepler Universität Linz, Altenberger Straße 69, A-4040, Linz

    G. Schimetta ÖVE & R. Weigel ÖVE

  2. Siemens AG, ZT MS 1, Otto-Hahn-Ring 6, D-81730, München

    F. Dollinger & G. Scholl

Authors
  1. G. Schimetta ÖVE
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  2. F. Dollinger
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  3. G. Scholl
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  4. R. Weigel ÖVE
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Schimetta, G., Dollinger, F., Scholl, G. et al. Reifenzustandsüberwachung — OFW-Funksensorik für den „intelligenten” Reifen. Elektrotech. Inftech. 118, 2–7 (2001). https://doi.org/10.1007/BF03158640

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  • DOI: https://doi.org/10.1007/BF03158640

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