Browse Publications Technical Papers 2017-01-0978
2017-03-28

Assessment of Light Duty Diesel After-Treatment Technology Targeting Beyond Euro 6d Emissions Levels 2017-01-0978

Since previous publications, Ricardo have continued to investigate the development of advanced after-treatment technologies through model based system simulation using an integrated model based development (IMBD) approach. This paper presents the results of the evaluation of after-treatment systems and management strategies for a range of diesel passenger cars. The targets of this study are applicable to Real Driving Emissions (RDE) legislation, but now targeting emissions levels beyond Euro 6d. The work was carried out as part of the EC Horizon 2020 co-funded REWARD (Real World Advanced technologies foR Diesel engines) project. Owing to the wide variation in feed-gas properties expected over an RDE cycle, the results seen for current production system architectures such as Lean NOX traps (LNT) or actively dosed Selective Catalytic Reduction (aSCR) systems highlight the challenge to adhere to emissions limitations for RDE legislation whilst fulfilling stringent CO2 targets. Optimisation of both the after-treatment system configuration and control strategies are required. Vehicle simulation has been performed with a range of after-treatment system specifications and engine-out feed-gas properties. The work includes an assessment of exhaust thermal management with regards to catalyst performance. The results are evaluated considering a range of criteria including; emissions control capability, estimated system on-cost, packaging limitations, fuel consumption penalty and additional fluid consumption. After-treatment system recommendations are made that deliver appropriate emissions control for a range of legislative, RDE and urban cycles for a selection of light duty diesel applications.

SAE MOBILUS

Subscribers can view annotate, and download all of SAE's content. Learn More »

Access SAE MOBILUS »

Members save up to 18% off list price.
Login to see discount.
We also recommend:
TECHNICAL PAPER

Meeting 2025 CAFE Standards for LDT with Fuel-Efficient Diesel Powertrains - Approaches and Solutions

2017-01-0698

View Details

JOURNAL ARTICLE

Ash Permeability Determination in the Diesel Particulate Filter from Ultra-High Resolution 3D X-Ray Imaging and Image-Based Direct Numerical Simulations

2017-01-0927

View Details

TECHNICAL PAPER

Multivariate Regression and Generalized Linear Model Optimization in Diesel Transient Performance Calibration

2013-01-2604

View Details

X