Investigation of a Catalyst and Engine Management Solution to Meet LEV III - SULEV with Reduced PGM

Paper #:
  • 2014-01-1506

Published:
  • 2014-04-01
DOI:
  • 10.4271/2014-01-1506
Citation:
Yi, S., Kim, H., Quelhas, S., Giler, C. et al., "Investigation of a Catalyst and Engine Management Solution to Meet LEV III - SULEV with Reduced PGM," SAE Technical Paper 2014-01-1506, 2014, https://doi.org/10.4271/2014-01-1506.
Pages:
7
Abstract:
A SULEV proposal was investigated for a Hyundai Elantra 1.8L Nu Engine, combining advanced catalyst technologies with optimized engine management control. A washcoat system using 20% less PGM loading and an optimized EMS calibration were developed to meet the 50% development target of the LEV III SULEV30 standards. This paper highlights revisions made to the new control and catalyst systems which include, 1) improved light-off time and cold-start emissions, 2) optimized cold lambda control, 3) reduced number of fuel cut events, 4) a new catalyst technology to match exhaust gas characteristics, and 5) a Pd-only front catalyst with reduced PGM.
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