/ 29 2010 The Innovative Internal Combustion Engine in the Context of Powertrain Electrification – A Major Key to Long-Term CO2 Reduction? The potential for optimizing the gasoline and diesel engine in connection with increasing powertrain electrification were the key topics at the “Engine & Environment” conference 2010. Introducing the subject, the main challenge for developers was said to be that of CO2 reduction of high-volume powertrains, as “in the mediumterm e-vehicles will probably not be produced in sufficient quantities to achieve an improvement of the environmental situation”. Dr. Rüdiger Szengel of Volkswagen Gasoline Engine Development opened the conference standing in for Dr. Jens Hadler, Executive Director Powertrain Development, on “Sustainable CO2 reducing powertrain technologies”, in which he presented the entire range of the VW Group - from efficient internal combustion engines to hybrid vehicles and the “e-up!” electric concept car. Dipl.-Ing. Wolfgang Stütz of BMW Motoren AG continued with “The diesel engine captured in the trade-off between CO2 reduction and electrification” and drew the following conclusion: “Compared to alternative CO2 avoidance concepts, such as gasoline hybrids or pure battery e-vehicles, the passenger car diesel engine is quite interesting. Together with further development options in terms of CO2 reduction, cut back of emissions and electrification, passenger car diesel engines will remain highly attractive in the competition of future powertrain concepts.” Prof. Dr. Joachim Böhme of Audi presented gasoline engine innovations taking the example of the new EA 888 engine family, which successfully reduced CO2 emissions by 30 % compared to its predecessor model. Dipl.-Ing. Gerald Killmann, General Manager Powertrain Engineering Toyota Motor Europe, presented “The combustion engine in the Toyota hybrid system”. Using a cooled exhaust gas recirculation (EGR) system and an electric water pump helped to reduce the cold running phase and friction. The 1.8-l gasoline engine using the Atkinson Cycle for enhanced efficiency. Julien Assoun (Renault) was optimistic about the future of e-mobility, and said that the e-car had reached maturity status in terms of technology and was economically feasible. Renault would therefore strive for market leadership in e-drive vehicles as from 2011. Dr. Daniel Armbruster, Manager Motorsport Development Systems Dr. Ing. h. c. Porsche AG, demonstrated Top: The chairman of the conference, Dr. Robert Fischer, presents a souvenir of the conference to Dr. Rüdiger Szengel of Volkswagen. Bottom: Dipl.-Ing. Gerald Killmann describing the Toyota hybrid system. that the hybrid drive was also successful in racing and presented the high-performance hybrid race car 911 GT3 R Hybrid with an electric flywheel as energy storage. The hybrid race car showed its power at the 24-hour race on the Nürburgring race track, where the Porsche 911 GT3 R Hybrid was in the lead for a long time before its combustion engine suffered damage. Rüdiger Szengel, Wolfgang Stütz, Julien Assoun, Gerald Killmann, Toshihiro Mibe, Daniel Armbruster
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