Daimler Truck unveils Freightliner SuperTruck II

In News, Daimler3 MinutesBy NZ Trucking magazineFebruary 3, 2023

Daimler Truck North America has unveiled the Freightliner SuperTruck II in Las Vegas.

The truck uses a variety of technical innovations to demonstrate efficiency potential in freight transportation.

The concept vehicle was developed as part of the SuperTruck programme co-funded by the U.S. Department of Energy, which aims to reduce emissions in road freight transport.

As part of the SuperTruck program, DTNA engineers research next-generation heavy-duty commercial truck technologies, technical ways for their development, and ways to integrate them into series production.

The SuperTruck II builds on the success of SuperTruck I, which was introduced by DTNA back in 2015. The truck surpassed expectations in aerodynamics, tires, powertrain and energy management, while doubling the freight efficiency of the base vehicle from the start of the SuperTruck programme.

Freightliner engineers were able to overachieve in aerodynamic improvements and reduce the aerodynamic drag of SuperTruck II by more than 12% over SuperTruck I. Instead of radically changing the structure of the truck, the design goal for SuperTruck II was to redefine the existing shape of the Cascadia to maximise aerodynamic efficiency and simultaneously employ advanced design language to convey that efficiency.

The redesigned hood, bumper and chassis fairing all work well with the existing cab structure and now allow the air to flow undisturbed around the truck. The grille, air intakes and doors were redesigned to be as seamless and clean as possible in order to not compromise the aerodynamics of the truck. Active side extenders and a roof spoiler system closes the trailer gap by up to four inches at highway speeds and an enhanced Aerodynamic Height Control lowers the truck just inches off the ground for additional aerodynamic improvements. By removing the exterior mirrors and integrating a mirrorless camera system the aerodynamic drag of SuperTruck II was significantly reduced.

SuperTruck II features the most efficient powertrain Freightliner has ever integrated into a truck. The powertrain enables a 5.7% fuel consumption reduction over SuperTruck I, achieving lower downspeeding and greater fuel savings through reduced drag overdrive.

An innovative 48-volt electrical system using lithium-ion batteries allows for decreased fuel consumption and increased driver comfort features like a new electric air conditioning system that consumes 50% less energy than SuperTruck I and continues operations while the engine is turned off.

Brand new specifically engineered tyres reduce vehicle energy consumption and maintenance downtime due to minimised wear and tear.