ElectReon AB has successfully managed to charge a fully electric 40-tonne truck and trailer wirelessly at a test facility near Stockholm. The company says its next step is to charge the truck through dynamic wireless power transfer on a public road at Gotland, Sweden.
Smartroad Gotland
Photo: ElectReon
The Smartroad Gotland project is the world's first wireless electric road system (ERS) for trucks and buses on public roads. ERS supports electric power transfer to vehicles while in motion and has great potential to decarbonise the transport sector and to increase energy efficiency with a reduced need of batteries.
The project is supported and funded by the Swedish Road Administration and is led by ElectReon AB, a Swedish subsidiary of the Israeli company ElectReon Wireless. The goal of the project is to prove that ElectReon’s technology is ready for commercialisation and to provide decision makers with knowledge necessary for large-scale ERS deployment.
ElectReon´s wireless power transfer solution has already been tested and implemented at the company’s test facility in Beit Yanai, Israel. The company has now built a test facility near Stockholm at the facility of NCC, one of the largest construction companies in the Nordic region and one of ElectReon´s partners in the demo project Smartroad Gotland.
The purpose of the new test facility was to integrate and test the full ElectReon system with management unit, coils, and receivers before operations starts on the public road of Gotland. Five receivers were installed on the trailer of an electric truck, Sweden’s first fully electric 40-tonne truck. The test took place in winter conditions, with temperatures around 0°C.
The results showed that the system successfully charged the electric truck statically through wireless power transfer. The system was activated and supervised remotely enabling management of all relevant charging and metering parameters. The receivers transmitted about 20 kW each with an efficiency of about 90%.
ElectReon recently received a review on electromagnetic compatibility (EMC) tests that was performed in a lab environment in Tel Aviv. The review was done by five Swedish agencies and showed that the system is ready to be operated on public roads. To verify these results in a real environment, RISE Research Institute of Sweden performeded a EMC and EMF test on the test site. The preliminary results verified the previous satisfactory results from the lab.
With the integration tests now conducted, the truck is ready for dynamic charging on public roads in the beginning of March. This will mark the world´s first truck operations on a public wireless electric road system. The truck will run on the first stretch of electric road that was prepared in November 2019. During 2020 further infrastructure will be deployed to a total of 1.6 km electric road on a 4 km road stretch.
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