AECC Contribution to the Euro 7/VII Process - AGVES meeting 24 February 2021
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AECC Contribution to the Euro 7/VII Process AGVES meeting 24 February 2021
Association for Emissions Control by Catalyst (AECC AISBL)
AECC members : European Emissions Control companies
Exhaust emissions control technologies for original equipment, retrofit and aftermarket
for all new cars, commercial vehicles, motorcycles, and non-road mobile machinery
AECC is # 78711786419-61 in EU Transparency Register and
has consultative status with the UN Economic and Social Council (ECOSOC)
AGVES meeting – 24 February 2021 2
Agenda
AECC demonstration projects
Light-duty diesel
Light-duty gasoline
Heavy-duty diesel
Summary
AECC position on Euro 7/VII
AGVES meeting – 24 February 2021 3
LD diesel demonstrator summary
Shows that diesel emissions can be kept at a
very low level in a consistent way, over a wide
range of conditions
Additional data analysis according to CLOVE
scenarios presented 27/10 shows
Challenges remain towards combination of
boundary conditions
Impact of minimum trip definition on report
value in mg/km and #/km
AGVES meeting – 24 February 2021 4
LD diesel demonstrator summary
Shows that diesel emissions can be kept at a
very low level in a consistent way, over a wide
range of conditions
Additional data analysis according to CLOVE
scenarios presented 27/10 shows
Challenges remain towards combination of
boundary conditions
Impact of minimum trip definition on report
value in mg/km and #/km
Significant WtW CO2 reductions possible with
the use of renewable fuels, also for the existing
fleet due to drop-in capabilities
“Advanced emission controls and renewable fuels for low pollutants and lifecycle CO2emissions”, Sustainable ICE, 2020
https://www.aecc.eu/wp-content/uploads/2021/02/210204-AECC-presentation-sustainable-ICE-conference-final.pdf
AGVES meeting – 24 February 2021 5
LD gasoline demonstrator concept and schedule
Demonstrator concept
Euro 6d C-segment base vehicle
4 cyl GDI with 48V mild-hybrid
ccTWC, ufGPF+TWC+ASC1
1 ASC operation strategy for gasoline under investigation in addition to improved lambda control
Bench aged components targeting 160k km
Advanced lambda sensors and control
Schedule and status
Extra Milestone AGVES meeting
Milestone 1b 18 Feb 2021 Milestone 3b
6 Nov 2020 Veh calib 16 Apr 2021
Baseline testing serial lambda Veh calib 2
Milestone 1 Milestone 2 Milestone 3a Milestone 4
28 Aug 2020 22 Jan 2021 5 Mar 2021 7 May 2021
Preparatory activities Engine bench Veh calib 1 Final report
advanced lambda
AGVES meeting – 24 February 2021 6LD gasoline demonstrator preliminary data
Initial tests conducted with AECC emission control system and serial lambda control
Exploring beyond Euro 6 RDE boundary conditions
On the chassis dyno
• RDE aggressive at 23°C
On the road
• RDE normal driving at -5°C
• Short calibration test
• Normal driving at 0°C and 23°C
• Smooth driving at -5°C
• Aggressive driving at 2°C
Further tests planned to investigate towards combination of boundary conditions
AGVES meeting – 24 February 2021 7LD gasoline demonstrator preliminary data
Low NOx emissions of Euro 6d-TEMP data confirmed under moderate RDE conditions
Challenges remain towards combination of boundary conditions
Minimum trip definition impacts report value in mg/km
AECC RDE normal -5°C (MHEV)
AECC Calib Test aggressive 2°C (MHEV)
Euro 6d-TEMP normal ~20°C
AECC RDE aggressive 23°C (MHEV)
AECC Calib Test normal 23°C (MHEV)
1 Minimum trip length of 5 and 16 km applied
2 The results are reported as measured under the specified test routes and conditions
AGVES meeting – 24 February 2021 8LD gasoline demonstrator preliminary data
Low PN emissions of Euro 6d-TEMP data confirmed under moderate RDE conditions
Soot and ash accumulation during ageing of parts supports filtration efficiency
Challenges remain towards combination of boundary conditions
Minimum trip definition impacts report value in #/km
AECC RDE normal -5°C (MHEV)
AECC Calib Test aggressive 2°C (MHEV)
AECC RDE aggressive 23°C (MHEV)
AECC Calib Test normal 23°C (MHEV)
1 Minimum trip length of 5 and 16 km applied
2 The results are reported as measured under the specified test routes and conditions
AGVES meeting – 24 February 2021 9diesel
HD diesel demonstrator project
Base vehicle description
MB Actros 1845 LS 4x2
Euro VI C certified, 12.8 l, 6 cyl, HP EGR
ccDOC+ccSCR/ASC, ufDOC+cDPF+SCR/ASC
Hydrothermal aged components
targeting 500k km
Project partners
Automotive Grade Urea Sector Group
AGVES meeting – 24 February 2021 10diesel
HD diesel demonstrator project outline
Status and timeline
AGVES meeting
Milestone 1 Milestone 2 Milestone 3 Milestone 4 Milestone 5
15 Oct 2020 18 Nov 2020 27 Nov 2020 05 Feb 2021 26 Feb 2021
Vehicle Build-up Calib Loop 1 Calib Loop 2 Calib Loop 3 PEMS campaign
Calibration efforts have focused on the NOx conversion
Fine tuning is required to have a good system balance,
which will be done based on PEMS results
Testing conditions are not fixed. Several parameters
impact the results, and this should be considered
AGVES meeting – 24 February 2021 11diesel
HD diesel demonstrator preliminary results
Ultra-low NOx emissions over a
broad range of operating conditions
ISC (N3 Euro VI-c route) and urban
delivery1 trips have been conducted
with 10 and 50% payload
Tests cover a range of ambient
temperatures from 4-11°C
On-road testing results can be
impacted by road events (traffic,
altitude, etc.), temperature or
even different drivers
1 Urban delivery (diesel
HD diesel demonstrator preliminary results
ISC1 (N3 Euro VI-C route) NOx results show
that cold-start remains the main emission 1 x WHTC
event ~130mg/kWh
End of test 1
The close-coupled catalysts result in a ~45mg/kWh
short heat-up time of the system
Emissions are well controlled once the
system is warm
Minimum trip definition impacts report
value in mg/kWh
1 ISC tests performed with 10% payload, Test 1 & 2 conducted at 8°C and 10°C respectively
2 The results are reported as measured under the specified test routes and conditions
AGVES meeting – 24 February 2021 13diesel
HD diesel demonstrator preliminary results
PEMS campaign is being conducted to
validate ultra-low NOx emissions and to
investigate non-regulated emissions
Preliminary results shown are from an
ISC route at 10°C
NH3 N2O PN10
(mg/kWh) (mg/kWh) (#/kWh)
Urban 0,0 58,2 6,1E+10
Rural 2,6 68,5 2,4E+09
Motorway 13,0 35,2 2,3E+09
Total trip 6,9 45,3 3,1E+10
Challenges towards combination of
boundary conditions to be tested further
1 The results are reported as measured under the specified test routes and conditions
AGVES meeting – 24 February 2021 14AECC light- and heavy-duty demonstration projects summary
Ultra-low pollutant emissions are technically feasible for all on-road vehicle categories
and in a broad range of driving conditions
The light-duty diesel and gasoline emission control systems combine close-coupled and
underfloor components to ensure early light-off for urban emission control in combination
with consistent emissions reduction over the range of driving conditions
Innovative heavy-duty emission control layout including close-coupled catalysts has
demonstrated to address high emissions operation such as cold-start, city start and delivery
operation
Significant WtW CO2 reductions possible with the use of renewable fuels, also for the existing
fleet due to drop-in capabilities as demonstrated on the light-duty diesel demonstrator
AGVES meeting – 24 February 2021 15AECC light- and heavy-duty demonstration projects outlook
Testing campaigns continue to finetune the calibration and investigate emissions towards
combination of boundary conditions
Additional active thermal management technologies will be investigated in follow-up activities
in 2021 to reduce the remaining initial cold-start emissions with minimal impact on CO2
Light-duty gasoline: electrically heated catalyst within close-coupled TWC
Heavy-duty diesel: electrically heated catalyst within close-coupled DOC or close-coupled SCR
Renewable fuels with drop-in capabilities will be tested on the LD gasoline and HD diesel
demonstrator to investigate WtW CO2 reductions
AGVES meeting – 24 February 2021 16AECC position on Euro 7/VII - background
AECC position on Euro 7/VII was published on 9 July 2020
www.aecc.eu/wp-content/uploads/2020/08/200709-AECC-position-on-Euro-7.pdf
CLOVE scenarios presented on 27 October 2020 are a very challenging package due to
combination of test conditions and limit values
AECC demonstrates technical capability of current state-of-the-art emission control systems
Reference is to be made to the Technology Readiness Level (TRL) to describe maturity level
from idea up to full commercial application, for example1
TRL 1 – basic principles observed
TRL 3 – experimental proof of concept
TRL 7 – system prototype demonstration in operational environment (AECC demonstrators)
TRL 9 – actual system proven in operational environment
1 Extract from Part 19 - Commission Decision C(2014)4995 – Horizon 2020 Work Programme
AGVES meeting – 24 February 2021 17AECC position on Euro 7/VII – additional considerations
AECC supports overall Euro 7/VII ambition level to promote innovation and further R&D towards
near-zero emission levels of ICE
Ambition beyond capabilities of catalyst and filter-based technologies at TRL 6-7 used in AECC
demonstrator programmes
Extension of boundary conditions to a wide-range operation to minimize impact on urban air quality
AECC suggests 1 legislative package for Euro 7&VII with a phased approach over next decade
Improve air quality as soon as possible in the highest impact areas for which TRL is at 6-7
Provide development outlook for technologies today at low TRL to fully cover wide-range operation
Fully defined before the entry into force date of the Euro 7&VII Regulation
Incentives for the introduction of more advanced technology by early adopters are welcomed
AGVES meeting – 24 February 2021 18AECC position on Euro 7/VII – additional considerations
Technologies are under development to cover emissions reductions over wide range operation
Maturity level differs depending on the technologies and application, for example for LD and HD
• Integration of close-coupled and underfloor components (TRL 6-7)
• Electrically heated catalyst1 (TRL 6-7)
• Burner2 (TRL 2-3)
• Pre-heating of the emission control system (TRL 2-3)
• Improved filter material (TRL 2-3)
• …
In combination with hybridisation3-4 of the ICE-based powertrain
1. Wancura, et al.; “The Electrified Diesel as Sustainable Solution for the Future”, MTZ Worldwide Issue 12 29-33, 2020
2. C. Sharp, et al.; “Pathways to Achieving Low NOx In Heavy-Duty Diesel Applications”, 7th International MinNOx Conference, pp. 122–143, 2018.
3. Bunar, et al.; “Contribution of Low Voltage Diesel Mild Hybridization in the Context of Future Post EU6 RDE and CO2 Requirements”, in 28th Aachen Colloquium, 2019
4. J. Schaub, et. al.; “Benefits of Heavy-duty Powertrain Hybridization“, 3rd Session FEV Webinar Future Truck Series, June 2020
AGVES meeting – 24 February 2021 19THANK YOU !
www.aecc.eu
dieselinformation.aecc.eu
@AECC_eu
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