SAE 2014 Light Duty Emissions Control Symposium
Technical Session Schedule
Tuesday, December 9
System Level Strategies
(Session Code: LDD500)
Room Salon ABCD 4:00 p.m.
Moderators - Cary Henry, Southwest Research Institute
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|Light-Duty Diesel Aftertreatment for Future Low Emission Applications
In order to meet the future US 2025 CAFE standards, the average fuel economy of automobiles has to increase dramatically. Many OEM’s have a positive outlook towards considering highly efficient light-duty diesel powertrains as one possibility to reach the fleet average fuel economy goals. According to many market sales indicators, the annual sales of light-duty diesel vehicles in North America will reach nearly 1 million units by 2018. This growing emphasis for light-duty diesel powertrains has drawn attention to how the emission control technologies can be tailored to best meet the LEV III emissions standards, while still maintaining a high fuel economy advantage over their gasoline counterparts.
In this presentation, beginning with a quick discussion about motivation, an in-depth technical analysis about future light-duty diesel engine and aftertreatment configurations will be discussed. The presentation primarily focuses on the challenges associated with advanced aftertreatment systems in combination with lower engine out emissions that are necessary to meet LEV III standards while maintaining high fuel economy.
Daniel Richtermeier, FEV Inc.
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|System-Level Approaches to Mitigate the Formation and Emission of Particles from Gasoline DI Engines
The proposed legislative requirements on particle number emissions for EU6c and the reduced particle mass emission limits of CARB LEV-III / EPA Tier-3 pose a new challenge in the development of gasoline direct injection engines. Bosch is actively pursuing system level solutions, including the development of next generation DI injection systems, to aid OEMs in meeting the new legislative requirements without the need for additional exhaust gas after-treatment or penalties in fuel economy. This presentation will highlight key development areas and show system level pathways to successfully address these challenges.
Michael Mosburger, Robert Bosch LLC
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|An Emission Roll-out for LEV-III and Tier-III Possible TWC PGM Loadings and Other Considerations
The Tier-III and LEV-III fleet emission rollout is reviewed with the federal fuel economy standards. An emission rollout is generated compliant to the light duty LEV-III emission regulations to 2025. PGM loadings are estimated for the fleet based on current 4 cylinder Bin-4 and PZEV applications. Pd and Rh loadings will increase as the fleet average approaches SULEV30 in 2025. Non-traditional technologies such as HC trap and SCR catalyst may find a market.
Douglas Ball, Umicore Autocat USA Inc.