As part of efforts to reduce air pollution caused by diesel-powered delivery trucks, engineering giant Siemens and heavy-vehicle maker Scania teamed up on a project several years ago to make the vehicles greener.
It came up with a hybrid truck that draws power from overhead electric lines fitted along a regular highway, making it similar to systems long-used by many trams and trains.
To adapt it for trucks, Siemens created an extendable power coupler that automatically extends from the top of the vehicle to connect to the electric lines when sensors detect their presence.
Read the article at Digital Trends.