It's no secret that massive commercial vehicles barreling down the road churn out a great deal of road pollution, and the Siemens eHighway initiative is testing a new type of truck that would run on electricity -- but not in the way one would think.
Using the overhead electrical power line system that works successfully in trams and railway cars, the company has come up with a half-electric, half-diesel hybrid vehicle that can easily switch between the two power sources.
When driving along on a roadway where power lines exist, the truck automatically expels a pantograph from the roof and links up to the overhead wires. When the truck shifts onto a highway where no lines are available for use, the vehicle's internal system retracts the connector and switches to an efficient, low-emission motor.
This truck is really redefining the term "smart car."
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