/ 27 2007 The Hybrid: Full, Mild, Micro – Which System Will Win the Race? Which version of hybrid drive will take “pole position” in future? And are there unlimited possibilities for engine and transmission design? These were the issues discussed by experts at the AVL conference in September 2007. In his introductory speech entitled “The re-electrification of the automobile” Dr. Gerhard Schmidt, Vice President Research & Advanced Engineering Ford Motor Company, described the development from the first electric vehicles to the current state of hybrid technology. According to Dr. Schmidt, the main factors for wider consumer acceptance would be attractiveness and affordability, while profitable production would be imperative for manufacturers. The decisive aspect would be a reduction in the production costs of key components in hybrid drive systems, in particular for plug-in hybrid vehicles. A look back at “Ten years of hybrid serial production” – and more than 1 million hybrid vehicles sold by Toyota and Lexus – was presented by Shizuo Abe of Toyota Motor Corporation. He said that Toyota would place even greater focus on hybrid technology in the future and also promote plug-in-hybrids, which requires “innovative battery technology”. Such a battery system was presented by Dr. Uwe Köhler (Johnson Controls- SAFT Advanced Power Solutions) in his lecture on “Li-Ion battery systems for the next generation of hybrid electric vehicles”. Ing. Maurizio Cisternino of GM Powertrain Europe presented a speech prepared together with representatives of the Politecnico di Torino, Ohio State University and Politecnico di Milano on “From micro to full, exploiting the benefits of different degrees of hybridization in a flexible hybrid architecture “ with the example of a 2-l common rail diesel engine in a European mid-size car. The “Potential of hybrid powertrains in the various vehicle classes” was discussed by Dipl.-Ing. Hans Kemper (FEV Motorentechnik GmbH, Aachen), Prof. Dr.-Ing. Stefan Pischinger and Dipl.-Ing. Jörg Seibel (Chair for internal combustion engines, RWTH Aachen) who came to the following conclusion: “A class-specific combination of conventional and hybrid technologies is expedient to achieve 130 g/km CO2 emissions in the total European vehicle fleet.” The use of parallel hybrid systems based on automatic transmissions would be the ideal option for successful hybrid drives in terms of efficiency and customer benefit, explained Dr.-Ing. Ralf Kubalczyk (ZF Getriebe GmbH), Dr.-Ing. Stefan Kilian (ZF Friedrichshafen AG), Dipl.-Ing. Michael Wetzel (ZF Sachs AG) and Dipl.-Ing. Frank Blome (Continental Automotive Systems) in their presentation. Left: Hybrid demo vehicle AVL Eco Target. Center: Univ.-Prof. Dr. Hans Peter Lenz (Emeritus), Vienna University of Technology. Right: Dr. Gerhard Schmidt, Vice President, Research and Advanced Engineering, Ford. Günter Hörmandinger, Hans Peter Lenz, Gerhard SchmidT, Shizuo Abe, Maurizio Cisternino, Jörg Böttcher
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