Indiana might soon have wireless charging roads where drivers can charge their EVs (electric vehicles) while driving.
Two major obstacles when it comes to the popularity of EVs are its range and charging time. And while every year there is a considerable improvement in both the factors-the Indiana Department of Transportation decided to jet-speed the process and promote EVs by developing wireless charging roads.
Electrified charging coils (线圈) will be buried under the concrete roads that will create a magnetic (磁性的) field on the surface of the road. This technology is similar to the technology used for developing wireless charging stations for tablets and phones. Cars will be fitted with a receiver coil that will pick up the charge on the way and become magnetized, drawing electricity from the coil itself.
The project will start in late summer. It is given to Magment -- a German firm responsible for designing and installing the technology. A company spokesperson called this project “a step forward towards the future of dynamic wireless charging”, adding this will pave the way for affordable and sustainable transportation electrification.
Seeing the rising price of the copper wires, the firm decided to desert copper and go with recycled ferrite (铁氧体). This achieves up to 95％ of the efficiency at a standard cost of road-building installations. Given the cost savings, the project may start production soon after the two planned lab tests.
If successful, the Indiana model would represent the best in the field. While it will be the first such electrified charging road in the U. S. , Sweden has electric rails on some highways. These electric rails allow trains to charge by an electric arm on their undercarriage (底盘). Germany is not behind this trial of electric roads-and is building a structure of cables and wires that will allow cars to charge like city trams.
【小题1】Which factor may mainly discourage people from buying EVs according to the text?| A．Unaffordable price. |
| B．Wireless charging roads. |
| C．Limited driving distance. |
| D．Inconvenient charging stations. |
| A．Why EVs need charging on the road. |
| B．What EVs and phones have in common. |
| C．Where electrified charging coils will be buried. |
| D．How cars will get charged wirelessly on the road. |
| A．The price of recycled ferrite is on the decline. |
| B．The project can increase the popularity of EVs. |
| C．EVs can charge on electric roads very soon. |
| D．Indiana is the first to have electrified charging roads. |
| A．Objective. |
| B．Critical. |
| C．Supportive. |
| D．Indifferent. |
