《P1_AlexanderSchad_Paper_English》.pdf

Challenges and approaches for electrified drive systems Dr Alexander Schad Senior Manager Powertrain Engineering Department Shanghai Volkswagen “Alternative powertrains are essential to achieve radical climate goals” The automotive industry and the economy as a whole are facing enormous challenges caused by the growing scarcity and ever-more complex extraction of fossil fuels, and in particular by the increase of climate change. Our current powertrain technologies include innovative, turbocharged, downsized and lower-emission engines and efficient dual-clutch gearboxes. As powertrain developers, our primary task is to further increase the efficiency of the units, but this alone will not be sufficient to achieve the objective of sustainable mobility. It will require the ever-greater integration of energy sources into our thinking, because the physics and rolling resistance of a vehicle always require the use of energy. We will require energy sources that are almost entirely carbon neutral if we work on the basis of a scale of 20 g CO /km in a well-to-wheel analysis in 2050, which 2 represents a CO2 reduction of approximately 90%. What energy sources could these be? Firstly, biofuels can play an important role, particularly the second and third generations. And secondly, electricity as a renewable energy with its breadth of options for generation. 2050 may still seem relatively far away, but if we take into account the life cycle of vehicles licensed today, the time required for the development and introduction of new technology, and the time it takes for customers to pick up a new technology and for a significant market share to be achieved, the