Tag Archives: conductive rail

Electric Road For Electric Cars

In recent years, electric roads have emerged as potential alternatives to the heavy and expensive batteries currently needed in electric road vehicles. Now researchers at Lund University in Sweden have developed an even smarter technology – that doesn’t require digging up stretches of road to install the system. Instead, a small conductive rail is laid on top of segments of the road.

CLICK ON THE IMAGE TO ENJOY THE VIDEO

The vehicle has three contact points with the road through which it connects to the power supply. It works much in the same way as a charging pole; except the vehicle charges both while moving and standing still”, explains Mats Alaküla, professor of industrial electrical engineering and automation at Lund University.

The rail is only active when covered by the vehicle, making it a safe option for cities. The system notices when you leave a driving lane and automatically disconnects the “pick up”– reconnecting when you are back. As a driver you wouldn’t notice anything beyond a symbol on your dashboard.

The current challenges for electric vehicles include the large and expensive batteries needed and the limitations in driving range. An electric road solution reduces the need for batteries by up to 80%.

Modern conventional electric vehicles have a driving range of 300-500 kilometers. With an electric road system covering the national and European road network,  you only need a battery range of 50-100 kilometers, to keep you covered if you come to the end of an electric road”, says Mats Alaküla. For longer distances, around 50% of the national and European road network  (e.g 10 out of 20 km on average) needs the rail installed for vehicles to keep running non-stop. The implementation would be different in cities than in other areas, stresses Mats Alaküla. In cities, the rail would be installed strategically on select road segments, bus stops, loading docks for trucks or waiting lanes for taxis, for example. This way, more complicated areas like intersections or roundabouts can be avoided.

Source: https://www.lunduniversity.lu.se/