Kiev. Ukraine. Ukraine Gate – January 3, 2021 – Auto
Electric cars have come a long way in the last decade, and their efficiency is growing. But none of them can match the performance of the railway car created by students under the name Eximus IV. He set a new record in the annual Delsbo Electric competition as the most energy efficient mode of land transport in the world.
Competition Delsbo Electric, held in Sweden, set students of different universities the task of building high-efficiency battery-powered electric cars for a maximum of six passengers.
These cars are placed on rails to minimize rolling resistance, and must cover a distance of 3.36 kilometers using as little energy as possible. Its consumption is calculated in watt-hours and then divided by the number of passengers on board.
The Eximus team has won all the competitions in which it has participated since its debut in 2016, and still achieves, albeit small, but still increase efficiency with a new record set each year. It all started with 0.84 watt-hours per person per kilometer in 2016, and last year the efficiency rate was 0.603 watt-hours / person-km.
Delsbo Electric claims that all cars participating in the event of 2020 are so efficient that they consume less energy than the headlights in a regular car! But none of them could match the Eximus IV, as the current champion demonstrates energy efficiency of 0.517 watt-hours / man-km!
“Theoretically, the Eximus IV can transport a person almost halfway around the world using energy contained in just one liter of gasoline, ” says Delsbo Electric’s technical director, Professor Henrik Rödegord.
Let the record be set, but not everything went smoothly for the Eximus team. During the first race there was a surge in fuel consumption, which, as the survey showed, was caused by a gap of only 8 mm between the wheels and a specific point on the rails. Then there were adjustments to the wheelbase, and the Eximus IV returned to its record mileage.
The entire track at Delsbo Electric is equipped with state-of-the-art measuring equipment that collects data and video twice a second, transmitting useful information about vehicle characteristics. Organizers say additional equipment, such as wind and temperature sensors, will be added to the system in the future. All this is needed in order to monitor how cars respond to changing conditions and adapt their efficiency to the real world.