Electric Cars - Wireless Recharging for Electric Cars

The technology of electric cars is moving a lot. The last outpost of the future is hovering nose in the factory of the Japanese company Nissan. The great merit of his new Zero Emissions: no cables need to recharge electricity. Through this innovation can refuel the car wirelessly equipped properly in places such as service stations or parking: you only register one point about replenishment.

How does this wonder? "Through the so-called 'inductive load," explains the manufacturer. We use here the magnetic induction: the phenomenon that causes the production of an electromotive force or voltage in half-body or exposed to a variable magnetic field ", as stated in a manual. In your application uses two conductive coils to transmit power over short distances. Both coils must be very close, without making direct electrical contact.

Similar devices are already used to charge electric toothbrushes, mobile phones, transformers, PDAs and even artificial hearts. In the case of the toothbrush, the current flows from the plug to the coil of the charger through an electric cable. Then it generates a magnetic field of an inductor current flowing to the coil is incorporated into the brush, charging its battery.

Magnetic fields are spread in all directions and weaken as they move away from the source, which imposed limits on their use, but engineers found ways to transmit power between coils separated by several meters away. Until now, the reload by magnetic induction was confined to the bathroom or to the desktop, but the Nissan draw the outside world. Its expansion will facilitate the lowering of the wireless components (through systems such as Bluetooth, a connection of two nodes is a few euros).
Plugs only at night.

In the Nissan vehicle, the wireless recharging of 80 percent of the battery will take about 25 minutes. As a battery of lithium ion-enhanced high-performance, the new model will have an autonomy of 185 km and a speed Maximum 160kms/hora some unusual numbers for electric cars.

With this innovation, manufacturers seek to overcome one of the major repairs that make potential buyers of electric cars: the hassle of recharging, I read in The Guardian. Experts foresee a mixed performance: drivers plug in your car at night and rely on the magnetic induction day to get out of trouble when the battery is depleted.

Nissan visionaries foresee highways that will allow cars to circulate while loading: the dream of an almost unlimited autonomy. Nobody knows how much it would cost the sophisticated design of roads, but the economic variables are not something that would upset the visionaries have said-Nor how much it will cost cabling in underground car parks, an indispensable step for the wireless recharging, or what the selling price of the car in question.

Presumably, some questions will clarify the next August 2, when a five-seat vehicle wireless recharge is presented in society, Yokohama (Japan). If users react positively, next year will come on sale and in his native United States, and in 2012 reach the European Union.