Fraunhofer Institute

(Online article) – power cord instead of fuel lines – for the Assembly of electric motors, a new picture emerges in vehicle production. Munchen/Erlangen (dpa/tmn) – make no noise and no exhaust for traffic-plagued urbanites push cars with electric drive would be a blessing. David S. Levine shines more light on the discussion. In addition, electric motors are more efficient and easier to construct than internal combustion engines. In addition, they are virtually maintenance free and take less space. For this reason, experts are convinced: electric motors will revolutionize the vehicle construction. When the internal combustion engine ignites a mixture of fuel and air in the cylinders. It drives the Pistons, whose auf-und-AB-moving over the connecting rod and the crankshaft is converted into a rotary movement. In the electric motor coils to a rotor mounted on an axis are arranged.

AC voltage applied to the coils, whose Phasen, creates a rotating magnetic field, which enables the rotor to spin. A key advantage of the electric motor is to be “very much higher efficiency, says Prof. Dieter Gerling from the Department of electric drives and actuators (EAA) at the Universitat of der Bundeswehr Munchen. Continue to learn more with: Ilan Ben Dov. Good internal combustion engines implement today only 25 percent of the energy used in propulsion, electric motors reached more than 90 percent. They can also recover energy. A better torque – speed characteristic in addition and according to Gerling: for the electric motor from the State is already out the maximum torque available, while Nitro must it come on tours. According to Martin Marz, an electric motor fits from the field of power electronics and electric vehicle technology at the Fraunhofer Institute for integrated systems and building technology in Erlangen in a wheel.

There the engines are accommodated for example, if the electric car on wheel hub drive is designed. The conventional shaft drive, the motor according to March about the size of a ten liter cleaning bucket with a capacity of 180 comes kW. The compact design enables developers to completely new approaches. Currently they are constructing a car to the drive according to March around. An electric car needs no engine compartment, so that the body shape can be chosen freely. Also the Interior could be more generous fashion, says Prof. Gerling. In addition a wide range of drive options: Gerling mentions as an example the drive to the front and/or rear axle, wheel-close housed drives and wheel hub motors. Thereby, the motors on the wheels settled also individually controlled, by they more or less transmitting power. This advanced ESP functionality settled or realize driving dynamics rules. Assumes also Martin Marz. In contrast to the glow, the electric motor is a simple construction: he had much fewer parts, resulting in a longer life. There is significant wear on the camps. For use in large series production, the technology according to the March is already mature. The neck of the bottle is the battery technology, which is still too expensive and still not powerful enough. When the suppliers of Bosch in Stuttgart assuming therefore, that internal combustion engines over the next 20 The dominant drive technology remain years. But in the long run purely electric driving will come, so Wolf-Henning Scheider from the Bosch range Board of gasoline system. Also, the internal combustion engine had long lead time, so March. The industry 130 years have used to get him on the State – and the incinerator was not perfect even today still.