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The project developed in collaboration with BMW to show that this technique works even without contact, if only the driver should be a short break to recharge. Related to the charging station can be easily incorporated into almost all regulation, which makes them almost invisible and effective pro-tecting them from vandalism and wear. In June 2011, the system's capacity to charge electric cars evaporator coils tested funded by the German Ministry of Environment, and involved several vehicles in Berlin.
A major obstacle to the expansion of the electron mobility is the lack of completeness and reliability of the charging infrastructure. Because electric cars have to recharge their vehicles more often than internal combustion engines need to refuel a variety of techniques are required for payment. Siemens Power Transmission inductive concept would automatically load vehicles such as taxis, waiting for the taxi stand.
The charging station is connected to the network through a primary evaporator coils that is completely underground. A secondary coil is connected to the car and the distance between the two condenser coils is normally between 8 cm and 15 cm. When the driver starts the charging process starts an electric current flowing in the primary coil. The resulting magnetic field induces an electric current in the secondary condenser coils, which recharges the battery. The electricity is transmitted over the network in all components of the battery with an efficiency of over 90%. The magnetic field is generated only in a predetermined area between the two evaporator coils. The system, therefore, generates a magnetic field strength in and around the vehicle is well below the international recommended limit of 6.25 microns.