Upcoming Emission Regulations for Passenger Cars : Impact on SCR System Requirements and Developments 2013-01-1072
Passenger Car and SUV Selective Catalytic Reduction (SCR)
systems were first introduced to the market in 2008. These systems
were developed to meet the stringent LEV-II Tier 2 Bin 5 exhaust
emissions regulation in US and EURO 6-1 regulation in Europe. New
emission regulations are being proposed. For Europe EURO 6-2 is
about to be defined and will start to apply in 2017. In US, LEV-III
SULEV requirements phase in from 2015 to 2025 and are mandatory for
all vehicles starting in 2020.
These amendments generate a new evolution of requirements for
automotive SCR systems:
A first effect of this evolution is that the most efficient NOx
reduction technology, combined with more efficient combustion in
the engine for CO₂ reduction, needs to be adopted on a wider range
of cars. As a result, compact diesel vehicles will need to apply
SCR technology.
Also, the increased need for NOx reduction leads to an increase
in AdBlue®/DEF consumption on each vehicle. All elements in the
feeding system from the tank to the injector must be designed to
the new consumption rates. The presentation describes a current
pump and filter and their evolution.
An additional effect of this consumption increase is the sizing
of the AdBlue®/DEF tank onboard the vehicle. A regular refill of
the AdBlue®/DEF by the vehicle driver becomes mandatory in the
majority of European applications. The presentation will describe
in detail the evolution of tank size and refill interface.
Citation: Op de Beeck, J., Thompson, J., and Booth, N., "Upcoming Emission Regulations for Passenger Cars : Impact on SCR System Requirements and Developments," SAE Technical Paper 2013-01-1072, 2013, https://doi.org/10.4271/2013-01-1072. Download Citation
Author(s):
Joël Op de Beeck, James Thompson, Neall Booth
Affiliated:
Inergy Automotive Systems SA, Inergy Automotive Systems LLC
Pages: 10
Event:
SAE 2013 World Congress & Exhibition
ISSN:
0148-7191
e-ISSN:
2688-3627
Also in:
Exhaust Emission Control, 2013-SP-2338
Related Topics:
Selective catalytic reduction
Environmental regulations and standards
Exhaust emissions
Vehicle drivers
Technical review
Nitrogen oxides
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