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Electric cars Electric cars loaded wireless

Electric cars loaded wireless

Electric cars loaded wireless

Electric cars loaded wireless

Wechlin added that during charging people sit inside the bus, which, he says, is absolutely safe since the magnetic field strength is within the limits recommended by the International Commission on Non-Ionizing Radiation Protection (ICNIRP).
Although safety problem can seem really worrying, Professor Paul Mitcheson of Imperial College London, who has studied the effects of electromagnetism on humans, says there should be no problem.
"The whole concept of wireless charging, effectively, the vehicle is based on near field coupling and nonradioactive connection between the point of loading and the receiver on the vehicle. It is not possible to design a system that emits no radiation at all. But a well designed can have negligible levels of radiation, far below the safety limits set by the IEEE (Institute of Electrical and Electronics Engineers), "added Wechlin.
Wireless system significantly increases the running time of the bus, because it does not need to withdraw the depot every few hours for recharging and battery replacement. The buses are loaded at the end of the route, the procedure lasting between 5:10 mind. In this way they can run from 7 am to 20 without interruption.
Electromagnetic induction is the only way to recharge wirelessly. WiTricity company created by Marin Soljacic, a professor at MIT, has patented a new method of wireless electricity transfer in amounts and at much greater distances than induction. Technique called high-performance magnetic resonance and magnetic fields involves the alignment of two racks with a frequency close.

"When you hook up a support wall, Are electricity passing through it is converted into a magnetic field that resonates at a certain frequency. It creates a second oscillating magnetic field around the second support which is placed under the car and which will be converted into electricity that will recharge the battery, "said Eric Gilera, WiTricity CEO.
The success of this scheme has been welcomed by the Japanese manufacturer Toyota, which in March 2011 signed a contract with those from WiTricity.
Whatever the system used, car manufacturers hoped that the introduction of wireless charging of electric cars will lead to wider adoption, reducing dependence on oil.
Recent studies suggest that you need to drive a long, long time an electric car for this to be more "green" than a vehicle that is powered by gasoline.
The production of electric cars becomes increasingly faster as more and more companies launching on the market such models. Now, Ford is preparing to introduce C-Max Energi to compete with those of General Motors, the Chevrolet Volt production car of 2011 in the US.

However, a new study suggests that electric vehicles would not be as "green" as ecologists think. Because of pollution from factories where they are produced batteries for these vehicles, an electric car has a carbon footprint bigger than when running on petrol, becoming more "nature friendly" after they have traveled a distance of 130,000 km.
Electric cars are not an option "green," says Ed Morrissey, an American journalist. "Not only do these electric vehicles produce the same amount of carbon, but also the need to change batteries make these cars to be less" green "than the current technology." To produce an electric car batteries required operation requires energy, and this car will need more batteries over time, he says.

On the other hand, other studies argue that electric vehicles and hybrids will have in the long term, a lower carbon footprint than petrol cars, so their use will help the Earth. Half of pollution from an electric car comes from manufacturing, long before the time when it is run.

Even so, the most passionate environmentalists recognize the need for manufacturing to benefit from several improvements for these environmentally friendly vehicles to be truly "green".

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