On-line Abatement of Transient NOx and PM Diesel Engine Emissions by Oxygen Based Optimal Control

Paper #:
  • 2010-01-2201

Published:
  • 2010-10-25
DOI:
  • 10.4271/2010-01-2201
Citation:
Alberer, D. and del Re, L., "On-line Abatement of Transient NOx and PM Diesel Engine Emissions by Oxygen Based Optimal Control," SAE Technical Paper 2010-01-2201, 2010, https://doi.org/10.4271/2010-01-2201.
Pages:
12
Abstract:
Transient emission peaks have become an important fraction of the total emissions during the standardized test cycles for passenger car Diesel engines. This paper is concerned with their reduction, in particular of nitric oxides (NOx) and particulate matter (PM) emissions, by online receding horizon optimal control. It is based on former works in which alternative target quantities for engine control were proposed, namely in-cylinder oxygen concentrations before (O2,BC) and after combustion (O2,AC). The actual work is concerned with testing an in-cylinder oxygen concentrations based control in simulation as well as by a real-time implementation on a turbocharged common rail passenger car production Diesel engine. The promising results confirm the choice of these concentrations as sensible control references and the feasibility of a real-time use in a model predictive control implementation.
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