Cars with zero local emissions are not nec essarily equipped with an environmental ly friendly propulsion system because the question is How is energy provided in the first place How is it stored Only a look at the entire energy chain allows making a valid statement about the environmental impact on humans and nature Experts refer to this measurement method for CO2 emissions as well to wheel Energy is produced stored and ultimately converted into kinetic energy i e locomotion in the automobile Schaeffler has calculated what this may mean in the case of an electric vehi cle Based on the current electric energy mix in the European Union an electric vehicle still generates up to 65 percent of the amount of carbon dioxide which a comparable model with a conventional gasoline engine produces The reason is that fossil fuels still dominate the production of electricity However if an elec tric vehicle is charged with 100 percent elec tric power generated from renewable sources the CO2 emissions compared with an IC engine drop to a mere three percent Electric vehicles are essentially able to meet the personal mobility needs of people in conurbations says Prof Peter Gutzmer Schaeffler s Chief Technology Officer How ever not only a vehicle s propulsion concept is of crucial importance Equally important is the way in which the energy for the car s pow ertrain is produced and stored Otherwise there s a risk that CO2 emissions are merely shifted to another place The field of topics and challenges addressed also include the pa rameters of energy availability in other words grid infrastructure and the required battery charging times Sustainable and available energy Wind and solar energy hydropower geo thermal energy or biomass help produce to morrow s electricity Schaeffler supplies state of the art components providing low friction bearing support of the drivetrains of wind tur bines In addition to the commonly known bio energy sources Schaeffler in concert with its partners is pursuing new research projects for instance relating to the use of wave and tidal power stations to produce electricity This en ergy must be sustainable highly predictable and economically available The question of storage is being explored by Schaeffler engineers as well Conventional ly a traction battery stores the electricity used for propulsion But electricity is not only us able for charging a battery It can also be used to produce hydrogen by means of electrolysis Cars with fuel cell drive systems can use hydro gen to produce electricity in the fuel cell Water When is mobility sustainable Only when the entire energy chain is used as the evaluation standard can the various mobility concepts be realistically assessed as well well to From wheel Not only the propulsion concept is of crucial importance Equally important is the way in which energy is produced and stored Prof Peter Gutzmer Chief Technology Officer at Schaeffler 12

Vorschau Schaeffler Fact Sheet XXL - IAA 2017 EN Seite 12
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