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Hannover (04/03/2011) . Electric cars are cleaner, quieter and more efficient than gasoline or diesel vehicles. Nevertheless, they have in the past not enforced. Now begins a new era: that of electric vehicles. Fraunhofer experts make important contributions. They present a selection of research projects at the Hanover Fair (4 to April 8, Hall 2, Stand D22). This may be the power generation an alternative to traditional cars, it still requires many research and development work. Already in June 2009, the Fraunhofer-Gesellschaft, the project "System Research electromobility" hook. It employs a total of 33 Fraunhofer Institutes. The research project is funded by the Economic Stimulus Package II supported by the Federal Ministry of Education and Research at 34.5 million Euro. In addition, the Recovery Plan I investment of 14 million euros encouraged. "Our goal is to provide knowledge and technologies throughout the value chain and in particular to generate the interfaces and make it the industry Fraunhofer-style available," said Professor Holger Hanselka, head of the Fraunhofer Institute for Structural Durability and System Reliability LBF in Darmstadt, which divides the overall project koordiniert.Das research project in five areas: vehicle concepts, power generation, distribution and implementation; energy storage technology, technical systems integration and socio-political Fragestellungen.Neu added a few weeks ago, the focus is "safety and Reliability.
More renewable energy
"It is not enough to convert our vehicles to electric motors," said Dr. Günther Ebert, who heads the Fraunhofer Institute for Solar Energy Systems ISE. The acute problems such as climate change can counteract electric cars only if they go primarily with electricity from renewables. As long as the energy originates from the large coal-or gas-fired power stations, problems such as emissions of pollutants are simply transferred - to where the plants are. "So the benefits of electric vehicles really come to fruition, we need the current energy mix toward more renewable Energy change ", explained the expert. The federal government has interpreted her approach to energy, in 40 years, electricity produced from 80 to 85 percent from hydropower, solar, wind and biomass can be produced. "The goals are there, they need only implement," says Ebert. Only then will drive electric cars really clean. A key advantage of the electric car: put the energy much more effectively than to gasoline engines. "Your energy efficiency in power generation up to the distance (well to wheel) a period is about 40 percent when the current electricity based on sets", Professor Martin Wietschel and his team at the Fraunhofer Institute for Systems and Innovation Research ISI determined . "So it is about twice as high" as in a fossil-fueled car. If one were to use only wind power to recharge the batteries, he would even be around 70 percent. In other words, power generation are much more economical than fossil-fueled vehicles.
batteries are a key component
the undeniable benefits of electric vehicles faces a major challenge: to supply the vehicles with electrical energy. This will require more powerful batteries. "If you wanted to save the energy content of a normal car tank of 46 liters of diesel in a lithium-ion battery, this battery system would have for the same vehicle range as have 500 liters of volume, it would include housing weigh much more than a ton, "says Professor Hanselka. Also, batteries are still very expensive. Fraunhofer researchers are working hard to develop and integrate the necessary batteries for electric cars. You can test new materials to develop the efficiency of the systems further and investigate how to make the systems to ensure that every consumer to participate safely driving or parking in a garage. But the battery is not the only hurdle in the transition to electric vehicles: Still missing a lot of technical requirements for the vehicles themselves, and sustainable systems of power generation. In addition, there is currently no reliable infrastructure for energy supply of the cars. And above all, so far only a few drivers are willing to engage in the risk of an electric car. Added to far-reaching restructuring to come within the industrial landscape, which would be required for the previously established suppliers and vehicle manufacturers. What would that mean for Germany is not investigated to date.
check for heart and kidney
Many other aspects are still unresolved: Do the systems was also of the daily burden? Are electric cars safe? These questions examine the experts in various Fraunhofer-test facilities. There will be checked, for example, such as batteries react in a denial or what effect extreme high and low temperatures. The test stands are also available for automotive manufacturers. This can be tested including acoustics, crash safety and durability. Another crucial question is how to deal with the massive energy flows that must be transmitted and distributed in an electric car. Fraunhofer researchers invent, develop, and test for safe and reliable technical solutions. "Fraunhofer wants to build a private car, our researchers work on the one hand the overall aspects and develop the other hand, individual components and systems," explained Dr. Michael Joeckel, head office of the initiative. "In the technical area that is about the development and system integration of wheel hub motors and a crash-proof battery. In the social sector, we explore new models including the use of vehicles, such as car sharing or leasing of batteries. We work "even for new structures for power electronics and manufacturing processes. Always focuses on the interaction of all aspects in the foreground, because that will ultimately decide whether the introduction of electric vehicles on a large scale is possible.
More renewable energy
"It is not enough to convert our vehicles to electric motors," said Dr. Günther Ebert, who heads the Fraunhofer Institute for Solar Energy Systems ISE. The acute problems such as climate change can counteract electric cars only if they go primarily with electricity from renewables. As long as the energy originates from the large coal-or gas-fired power stations, problems such as emissions of pollutants are simply transferred - to where the plants are. "So the benefits of electric vehicles really come to fruition, we need the current energy mix toward more renewable Energy change ", explained the expert. The federal government has interpreted her approach to energy, in 40 years, electricity produced from 80 to 85 percent from hydropower, solar, wind and biomass can be produced. "The goals are there, they need only implement," says Ebert. Only then will drive electric cars really clean. A key advantage of the electric car: put the energy much more effectively than to gasoline engines. "Your energy efficiency in power generation up to the distance (well to wheel) a period is about 40 percent when the current electricity based on sets", Professor Martin Wietschel and his team at the Fraunhofer Institute for Systems and Innovation Research ISI determined . "So it is about twice as high" as in a fossil-fueled car. If one were to use only wind power to recharge the batteries, he would even be around 70 percent. In other words, power generation are much more economical than fossil-fueled vehicles.
batteries are a key component
the undeniable benefits of electric vehicles faces a major challenge: to supply the vehicles with electrical energy. This will require more powerful batteries. "If you wanted to save the energy content of a normal car tank of 46 liters of diesel in a lithium-ion battery, this battery system would have for the same vehicle range as have 500 liters of volume, it would include housing weigh much more than a ton, "says Professor Hanselka. Also, batteries are still very expensive. Fraunhofer researchers are working hard to develop and integrate the necessary batteries for electric cars. You can test new materials to develop the efficiency of the systems further and investigate how to make the systems to ensure that every consumer to participate safely driving or parking in a garage. But the battery is not the only hurdle in the transition to electric vehicles: Still missing a lot of technical requirements for the vehicles themselves, and sustainable systems of power generation. In addition, there is currently no reliable infrastructure for energy supply of the cars. And above all, so far only a few drivers are willing to engage in the risk of an electric car. Added to far-reaching restructuring to come within the industrial landscape, which would be required for the previously established suppliers and vehicle manufacturers. What would that mean for Germany is not investigated to date.
check for heart and kidney
Many other aspects are still unresolved: Do the systems was also of the daily burden? Are electric cars safe? These questions examine the experts in various Fraunhofer-test facilities. There will be checked, for example, such as batteries react in a denial or what effect extreme high and low temperatures. The test stands are also available for automotive manufacturers. This can be tested including acoustics, crash safety and durability. Another crucial question is how to deal with the massive energy flows that must be transmitted and distributed in an electric car. Fraunhofer researchers invent, develop, and test for safe and reliable technical solutions. "Fraunhofer wants to build a private car, our researchers work on the one hand the overall aspects and develop the other hand, individual components and systems," explained Dr. Michael Joeckel, head office of the initiative. "In the technical area that is about the development and system integration of wheel hub motors and a crash-proof battery. In the social sector, we explore new models including the use of vehicles, such as car sharing or leasing of batteries. We work "even for new structures for power electronics and manufacturing processes. Always focuses on the interaction of all aspects in the foreground, because that will ultimately decide whether the introduction of electric vehicles on a large scale is possible.
For more information:
Fraunhofer System Research electromobility
official website of the Hannover Messe
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