The Global automotive industry is worth 2 trillion dollars, but electric and hybrid cars now account for less than 1% of this number. However, experts are predicting an explosion in relation to electric vehicles or simply electric vehicles. UBS predicts that the demand for electric vehicles will reach a turning point in 2018, as their cost will decline and eventually fall below the cost of conventional vehicles with internal combustion engine (including due to costs). China has seen a 53 percent increase in sales of electric vehicles from 2015 to 2016, and India is planning to sell only electric cars by 2030.
And even if they are available, even if they are not so much to pollute the air, electric cars will have one major limitation... they are electric. Electrician battery operated, the batteries and if the batteries are not recharged, they die.
Tesla Model 3 will be able to go 350 miles on a single charge, and the new Chevy Bolt — 400. This is the not so small distances, especially compared to the 50-mile range of mileage the Volt three years ago. Despite this, when the battery of the electric vehicle is running out, charging takes hours.
Researchers from Stanford University just made a step towards solving this problem. In an article published last week in Nature, the team described a new method of wireless power to the moving object within close range.
Wireless transmission of energy works by using magnetic resonance. The alternating magnetic field in the coil of the transmitter makes the electrons in the receiver coil to oscillate, with the best transmission efficiency occurs when both coils are tuned to the same frequency and a certain angle.
This complicates the transmission of electricity if the object is moving. To circumvent the need for continuous manual adjustment, a team from Stanford University has removed an RF source in the transmitter and replaced it with a voltage amplifier and a feedback resistor.
The System calibrates itself to the desired frequency for different distances. Using this system, scientists were able to wirelessly transmit milliwatts boost of power moving led light in meter from it. No manual configuration is required, and the transfer efficiency remained stable.
One milliwatt is, of course, not tens of kilowatts consumed by the electric vehicle. But now, when it became clear that the amplifier copes, the team is working on increasing the amount of electricity that can be transmitted using this system.
Shutdown the amplifier can make a big difference — for this test, engineers used a General purpose amplifier with an efficiency of about 10%, but custom amplifiers can improve the efficiency to more than 90%.
It will be some time before electric vehicles will begin charging while driving on the highway, but that is the future I foresee energy experts.
"In theory, you can move on indefinitely, even without stopping to recharge," says Shanhui Fan, Professor of electrical engineering and lead author of the study. "It is hoped that you will be able to charge your electric vehicle moving on the highway. Coil at the bottom of the vehicle to electricity from the coils connected to the power conduit in the roadway".
The Introduction of power lines in the road, by definition, will be a major infrastructure project, and there is no sense to produce it, while electric cars will not appear on every corner. When electric vehicles will represent at least 50% of vehicles on the roads or more. But if charging is easier, more drivers will switch to electricity.
Tesla has somewhat simplified the ownership of the electric car, investing heavily in its network of Supercharger. Currently, worldwide there is 861 station with charger Supercharger 5655 places, and they continue to build. Station free charging of the vehicle Tesla for half an hour.
The Opening of roads for installation of power lines, which can charge the car while driving, it seems unnecessary because covered by other technology. But as electric vehicles become more popular, drivers will wait a maximum of a smooth experience which can and will include no need to stop to charge the vehicle.
Despite significant obstacles, charging of electric vehicles on the go from a team at Stanford University has an amazing potential. Last but not least it can find application in cellular phones and personal medical implants. Perhaps with its help, the robots will get rid of the wires.
very few people surprised by the fact that the company offers to the world something new and breakthrough. First it was electric cars in General. Of course, they existed before, including some of the first self-propelled wagon in history was an elect...
we All know and love the company of Tesla. Sometimes it saddens us their news, but which often pleases interesting developments, new technologies and outstanding design. As the company is engaged in development and sale of electric vehicles, the main...
For some, a machine for two million rubles seems to be an accomplishment, but for someone sports car for two million dollars seems to be something not serious and he wants something more. With the first all is clear. It's a big part of the world's po...
The number of Chinese manufacturers of electric cars has arrived. Nimble guys from a startup company CHJ Automotive already developing two models of electric cars, which should appear on sale no later than 2018. Head start Kevin...
the New company, decided to embody the idea of Elon musk and create own vacuum system, continue to multiply like mushrooms after rain. But a new startup is building more ambitious plans, promising to be the fastest carrier of pass...
Rumors that the company Tesla wants to cooperate with China and build in this country the plant for the production of electric cars, walked across the Network all week. First reported by the Chinese publication China Daily, later ...