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Mikrowellengestützte Systeme zur Zustandserkennung von Abgaskatalysatoren und Abgasfiltern im Überblick

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Book cover Automobil-Sensorik

Kurzfassung

Die Regelung von Abgasnachbehandlungssystemen erfordert die Kenntnis der Katalysatorzustände. Dies kann z.B. die Sauerstoffbeladung von Dreiwegekatalysatoren, die Ammoniak-Beladung von SCR-Katalysatoren oder die Rußbeladung von Partikelfiltern sein. Derzeit werden Katalysatorzustände nur indirekt und/oder mit Hilfe von Modellen bestimmt. Das mikrowellengestützte Verfahren bestimmt den Katalysatorzustand hingegen direkt. Über kleine Koppelelemente (Antennen) werden elektromagnetische Wellen in den Abgasstrang eingekoppelt und die Reflexion oder die Transmission gemessen. Die elektrischen Signale korrelieren sehr gut mit dem Zustand des jeweiligen Abgasnachbehandlungssystems. Dieser Beitrag gibt einen Überblick über den Stand der Technik.

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Author information

Authors and Affiliations

  1. Bayreuth Engine Research Center (BERC), Lehrstuhl für Funktionsmaterialien, Universität Bayreuth, Bayreuth

    Ralf Moos

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  1. Ralf Moos
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Editors and Affiliations

  1. BMW AG, Knorrstr. 147, 80788, München

    Thomas Tille

  2. Technische Universität München, Arcisstr. 21, 80333, München

    Thomas Tille

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Moos, R. (2016). Mikrowellengestützte Systeme zur Zustandserkennung von Abgaskatalysatoren und Abgasfiltern im Überblick. In: Tille, T. (eds) Automobil-Sensorik. Springer Vieweg, Berlin, Heidelberg. https://doi.org/10.1007/978-3-662-48944-4_6

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