The influence of advanced boosting on transient NOx control in Light Vehicle Diesel engines
نویسندگان
چکیده
2017 and 2020 will represent major milestones for the light vehicle Diesel engine in Europe and other regions that are committed to WLTP. The Diesel engines’ position as the most efficient prime mover and the need for it to be included in a balanced and aggressive CO2 roadmap is not really disputed. Diesel however faces significant challenges in WLTC / RDE to deliver low ‘real world’ engine out and tail pipe out NOx at a competitive cost. This paper explores how advanced Boosting Technologies can be used to enable Fuel Injection, Combustion, Aftertreatment and Control systems to significantly impact both Engine Out and Tail-pipe Out NOx. It will provide a baseline and some limits of what conventional Mono & TwoStage solutions can provide today and go on to show how these systems could evolve to help reduce NOx emission and how they could co-exist with electrical boosting options in the context of Mild Hybrid architectures.
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