Cost competitive Diesel aftertreatment solution to meet future emissions requirements English Free Réservé aux membres

  • Catégorie Article technique
  • Évènement lié International Congress : SIA Powertrain - Rouen 2014 - 21 & 22 May 2014
  • Édition SIA
  • Date 21/05/2014
  • Auteur R.Argolini, G. Franconi, D. Gessaroli, D.Mercuri, G.Montinaro, P.Olmo - General Motors Powertrain Europe
  • Langue Anglais
  • Format Fichier PDF (1.17 Mo)
    (livraison exclusivement par téléchargement)
  • Nombre de pages 10
  • Code R-2014-02-42
  • Prix Gratuit

Moving to the future Euro 6c emission regulation, the best NOx aftertreatment technologies for the next generation of Diesel engines for a European vehicle portfolio have been investigated.
The usage of the Lean NOx Trap (LNT) as a cost competitive solution compared to the under floor active Selective Catalyst Reduction (SCR) configuration has been evaluated. Reduced hardware needs with a considerable cost saving and a minimized customer impact compared to DEF based aftertreatment system are making the LNT an attractive solution, especially for vehicles with relatively low mass and road load.
The performance of second generation LNT system managed by innovative control strategies will be illustrated on new driving cycles considering challenges including aging and sulfur poisoning effects.
Experimental data show, on three different vehicle applications, the NOx conversion efficiency in a potential homologation test on both NEDC and WLTC cycles. On real driving profiles, simulated with an ARTEMIS cycle, it has been proven that both fuel consumption and NOx emission targets can be flexibly balanced. Additional NOx reduction capability can be further achieved in combination with passive underfloor SCR.