In England will experience the "electric roads" with wireless charging cars
The UK Highway England Highway Agency plans to test wireless charging of vehicles through the roadway. The corresponding press release is published on the agency’s website.
If the experiment is successful, then the electrodes are mounted in the largest class A motorways.
The Agency has already carried out a feasibility study of the technologies of “dynamic wireless energy transfer”. Now is the time for field trials. A tender has been announced in which commercial companies can take part.
The UK is not the first country to lay electrical wiring in the pavement for wireless charging electric vehicles. In 2013, in the South Korean city of Kumi, a 12-km bus route was equipped in this way using Shaped Magnetic Field In Resonance (SMFIR) technology, writes BBC.
Shaped Magnetic Field In Resonance (SMFIR)
Electrical cables under the asphalt generate an electromagnetic field that acts on the coil inside the vehicle where current is generated. However, for the effective operation of such point charging platforms, it is desirable that the bus or car stay here for a few minutes. This is a good option for bus stops. With a stretch, we can assume the location of the sites at intersections with traffic lights.
Apparently, in England they will use a different method of wireless transmission of electricity so that the car's batteries can be charged on the go. From a practical point of view, this is more convenient.
Representatives of Highways England expect to conduct field tests of wireless charging in 2016 or 2017, but not on general roads, but for now on a separate training ground. The test site remains to be chosen. The experiment will last about a year and a half before the authorities make a final decision on the possibility of testing on real roads.
“The ability to charge electric cars on the go offers exciting prospects,” said Andrew Jones, UK Transport Secretary, on the initiative.
True, the project also has critics. They say that the cost of laying electrical infrastructure and the cost of electricity negate the economic benefits of electric vehicles. However, even critics admit: it still makes sense to test the technology.
Even if the experiment with wireless charging shows economic inexpediency, Highways England is not going to abandon the plan for installing “gas stations” for electric vehicles on highways every 20 miles (32.1 km).