At present, electric vehicles either use two upturned "long braids" or are powered by their own rechargeable batteries. The driving path of the former is restricted, and the latter not only takes time to charge, but also consumes energy due to the weight of the battery. In response to the problems of these two types of trams, the Israeli start-up company ElectReon Wireless has developed a unique solution: paving smart roads that can be wirelessly charged, allowing cars with a small number of batteries to be on this road Drive while charging.
Economical and environmentally friendly, let electric vehicles use the least battery
Noam Yilan, the company’s vice president of business development, said that as we all know, electric travel is the best way to solve traffic carbon dioxide and pollution emissions, but electric cars themselves are limited by batteries. They believe that electric vehicles that use the fewest batteries are the environmentally sustainable solution and the most cost-effective solution, especially for commercial or heavy vehicles.
The intelligent road of Electrolux Wireless includes a number of copper coils buried horizontally in the direction of the road 8 cm below the road asphalt pavement, and the coils are connected to the control management unit. The function of the coil is to wirelessly transmit electrical energy to the energy receiver under the vehicle to provide the required power for battery charging. The size and energy consumption of the vehicle determine the number of receivers. The entire system can extend the driving range of the car, and because of the use of a smaller capacity battery, which can accommodate more passengers and improve transportation efficiency.
According to Yilan, the energy required for a bus to travel 200 kilometers per day is 400 kWh, and the system they developed can provide at least 40% of the charging time for each bus driving on the smart wireless charging road. In this way, the power of the rechargeable battery carried by the bus only needs to be about 40 kilowatts.
Repeated tests to ensure the feasibility of the project in practice
In order to verify the feasibility of its plan, the company launched a pilot project and achieved encouraging results. The company's first research project was a trial called Gutland Smart Road in Sweden. The researchers wirelessly charge a 40-ton test truck with the goal of proving that its products can be commercialized and operated around the world.
Yilan said that the results of the Swedish test project confirmed for the first time the company's ability to charge trucks in motion, which made the company's solutions known to people all over the world. In fact, in accordance with the requirements of the Swedish government, the experimental infrastructure installed by the company is under the asphalt road throughout the winter. He believes that the test is a very important stage, because the next stage will be about 30 kilometers long, a larger-scale semi-commercial test in Sweden. In order to obtain approval from the Swedish government, the company must prove that the infrastructure it has installed can withstand the local winter test. Therefore, for the company, the Gutland Smart Road pilot project is a very important milestone.
It is reported that in the next step, the company will also cooperate with Israel's Tel Aviv Municipal Government and Dan Bus Company to build a wireless charging road of about 1 km for cars and test the special line shuttle service between Tel Aviv University and the railway station. Yilan said that the company will pave about 600 meters of roads and install charging devices at public transportation terminals starting in the fall of 2020.
Yilan believes that the demonstration project in Tel Aviv is to master the efficiency and performance of wireless charging technology, proving that the company can indeed provide a complete solution for buses without any other types of charging. If this goal is achieved, the Israeli Ministry of Energy will announce the implementation of a commercial project about 10 kilometers in length in Tel Aviv. The first phase of the project is to charge buses.
Looking to the future, wireless charging may become the focus of electric transportation
In June of this year, the company raised US$50 million in funds to further commercialize and enter the US and Latin American markets. At the same time, it expands the range of wireless charging vehicles from buses and heavy trucks to shuttles, taxis, and Light trucks, small box trucks and autonomous vehicles.
Yilan predicts that many countries or regions will issue bans on fuel-powered vehicles in the future. This move may make the technologies developed by companies like them the focus of electric transportation. Currently, the Israeli government’s goal is to have zero gasoline and diesel-powered new cars by 2030. In addition, other countries around the world have followed suit and announced their plans to gradually abandon the use of fuel vehicles in the next 10 years.
Yilan said that from now, about 10 years later, autonomous transportation will become more common, which provides a very natural opportunity for the combination of their company’s solutions and autonomous vehicles, because these vehicles can use wireless charging technology. With the support of, it relies on a small amount of batteries to charge and drive around the clock without the need for the driver to charge it. (Mao Li, our correspondent in Israel)
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