Freightliner's SuperTruck tractor measures 136-in. from the bumper to the back of cab, features a 36-in. trailer gap, and 72-in. raised roof. DTNA said this truck offers a 54% reduction in drag compared to a standard aerodynamic tractor, 50.2% engine brake thermal efficiency,and 115% vehicle freight efficiency improvement.
Low ground clearance bumper with electronic ride height control, underbody and under bumper panels, and flush surfaces help reduce aerodynamic drag.
Active"grille shutters" open at low speeds to provide more air to cool the tractor's10.7 liter Detroit engine, then close as seen here at highway speeds to reduce wind resistance.
Lightweight aluminum wheels and prototype Michelin tires reduce weight and rolling resistance.
tandem axle fairings can be raised or lowered as needed.
An aluminum 12-in. sliding fifth wheel also helps reduce tractor tare weight.
A 10.7 liter diesel engine is matched to a 120 kilowatt electric motor in Freightliner's SuperTruck as part of its hybrid powertrain.
Power steering is controlled with pump, hydraulic accumulator, and clucthed air compressor to reduce parasitic loads on the engine; reducing energy consumption by 1%.
GPS and 3D digital maps feed road terrain data back to the driver and truck alike in real time to "optimize" vehicle energy expenditure.
Honeycomb "sandwich structures" and carbon fiber reinforced composites cut weight the cab interior.
Using lighter materials, a new frame rail design and 2-piece cross members helped shave 700 lbs. from the chassis compared to a standard tractor.