CO 2 Goals: Time is Running out
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COMMERCIAL VEHICLE ENGINES
CO2 Goals: Time is Running out Heating and 18 Flexible Heat Retention for Future
combustion engine 26 “The has not by any means
New General Motors 30 The 3.0-l Duramax Diesel Engine
Exhaust Gas Aftertreatment
reached the end of the line”
Gianmarco Boretto, Vincenzo Verdino,
Robert Szolak, Florian Rümmele,
Interview with Stefan Pischinger [FEV]
Alberto Vassallo [Punch Torino],
Paul Beutel [Fraunhofer ISE],
Markus Umierski [FEV]
Bernd Danckert [ICCL]
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www.springerprofessional.com/automotive
The volume of road transport has been growing nationally and internationally for years. In Germany, the volume of goods transported is expected to increase by a further 181 million tons between 2020 and 2023 to more than 4 billion tons, according to a medium-term forecast for freight and passenger traffic by Intraplan. This makes it all the more important to further reduce the average CO2 emissions of commercial vehicles. Since 2020, stricter regulations have applied to light commercial vehicles with a fleet limit of 147 g CO2/km instead of 175, and the trend is still sharply downward. And in 2019, the EU has also set CO2 limits for heavy trucks for the first time. From 2025 on, the values for new vehicles must be 15 % lower than those of 2019, and 30 % lower from 2030 on – for the time being. Time is not on our side. What makes these requirements so demanding is, on the one hand, the cost factor, which is of vital importance for commercial vehicles, and, on the other, the conflict of objectives between the lowest possible CO2 and pollutant emissions against the background of the switch to RDE. This is why further cost-effective measures are needed – usually in addition to, but possibly also as an alternative to, electrification of the drive systems – and they must be rolled out as widely as possible. This applies to exhaust gas aftertreatment as well as to tapping further engine efficiency potential.
© FEV
Fraunhofer ISE presents CatVap, a technology for efficient heating and conditioning of EAT systems. Here, heat is provided chemically via catalytic fuel conversion with exhaust gas. GM presents the six-cylinder Duramax diesel engine, which combines very low pollutant emissions and low fuel consumption thanks to active thermal management, high-pressure and low-pressure EGR and effective exhaust gas aftertreatment. In the interview, Prof. Dr.-Ing. Stefan Pischinger from RWTH Aachen University outlines ways to achieve the emission targets for 2030. Thomas Schneider
MTZ worldwide 01|2021
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