Abgasnachbehandlung in mobilen Systemen: Stand der Technik, Herausforderungen und Perspektiven

Eine ganzheitliche Betrachtungsweise von Abgasnachbehandlungssystemen ist derzeit der attraktivste Ansatzpunkt fur die weitere Verminderung der Schadstoffemissionen und um auf neue Herausforderungen durch strengere Emissionsgrenzwerte, neue Rohstoffbasis und effektivere Motorkonzepte schneller zu reagieren. Dieser Artikel gibt einen Uberblick zu gegenwartigen Abgasnachbehandlungssystemen. Heutige und zukunftige Herausforderungen und Ansatze zu deren Bewaltigung werden diskutiert. Bei den vorgestellten Losungsansatzen spielen hierarchische Modellierung von DFT-Berechnungen bis zur CFD-Simulation des kompletten Abgasstranges, realitatsnahe Abgasprufstande und Alterungsverfahren sowie On-board-Diagnostik ebenso wie die Charakterisierung von Katalysatoren insbesondere unter Reaktionsbedingungen sowie moglichst alle Langenskalen eine wichtige Rolle. In Zukunft werden wissensbasierte roboter-kontrollierte Praparation und dynamische Modelle, gekoppelt mit Informationen aus dem realen Betrieb, Forschung und Entwicklung masgeblich unterstutzen.

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