Kenworth Unveils SuperTruck 2 at ACT Expo 2024
Kenworth has introduced its SuperTruck 2 demonstrator at the ACT Expo 2024 in Las Vegas. The project has been in development for six years and was built in partnership with PACCAR and the U.S. Department of Energy’s SuperTruck program.
The goal is to improve freight efficiency while still relying on diesel power, making long-haul trucking more fuel efficient and advanced.
Advanced Aerodynamics and Design
The SuperTruck 2 comes with a modern, forward-looking exterior along with major improvements in its powertrain and driver comfort. “We began with an ideal aerodynamic shape and envisioned the next-generation long-haul vehicle,” said Joe Adams, Kenworth’s chief designer.
The final design blends futuristic styling with real-world practicality, focusing on reducing aerodynamic drag while integrating technologies that are close to commercial use.
Its aerodynamic setup features a central cockpit with a wide panoramic view, a narrowed front nose, a sloped windshield area, low side skirts, and fully enclosed wheels. Traditional side mirrors have been replaced with slim camera systems equipped with night vision for better visibility.
A variable suspension system also adjusts the truck’s ride height on the move, improving airflow efficiency. Altogether, these upgrades help achieve an impressive 48 percent reduction in drag compared to Kenworth’s baseline model.
Powertrain and Efficiency
At the core of SuperTruck 2 is a PACCAR MX 11 engine paired with a TX 12 automatic transmission producing 440 horsepower. The system is supported by a 48 volt mild hybrid setup with lithium ion batteries.
Energy is recovered through regenerative braking and used to power key systems such as cooling fans steering support HVAC systems and exhaust treatment.
The engine cooling fan alone can consume up to 80 horsepower which makes the hybrid support system highly valuable for efficiency gains.
According to engineering reports the engine reaches an efficiency level of 55.7 percent. Overall fuel efficiency improves by around 10 percent thanks to the hybrid system.
Enhanced Features and Capabilities
SuperTruck 2 uses lightweight materials and advanced engineering to reduce total weight. The truck weighs 26,100 pounds which is about 7,100 pounds less than earlier models.
Low rolling resistance tires also contribute to better fuel economy while improving long distance performance.
The frame layout places key components between the rails and behind the front axle for better balance and stability on highways.
Driver Focused Interior Design
The cabin features a central driving position with a new sleeper area designed for long haul comfort. Large digital camera displays replace traditional mirrors to improve visibility in all directions.
The layout focuses on reducing fatigue while improving control and awareness during long distance freight operations.
Versatility and Future-Readiness
Although SuperTruck 2 runs on diesel it is designed with future flexibility in mind. The platform can support hydrogen systems natural gas storage or electric battery configurations without major structural changes.
This makes it a forward compatible design ready for upcoming changes in the trucking industry.
Collaborative Effort
The SuperTruck 2 project involved several partner companies, including AVL for engine development, Eaton for the powertrain, the National Renewable Energy Laboratory, and Ohio State University. “I’m very proud of this project,” said Walenczak.
“As Kenworth celebrates its 100th anniversary, SuperTruck 2 continues our tradition of delivering value to customers. This truck is a key milestone, helping us envision our future direction.”
Impressive Results
The outcomes of the SuperTruck 2 project show significant improvements: freight efficiency has increased by 136%, achieving an average of 12 miles per gallon (MPG).
Engine efficiency reached a record high of 55.7%, and there’s been a substantial weight reduction of 7,100 pounds. Additionally, a notable 48% enhancement in aerodynamics has been attained.
Conclusion
Kenworth’s SuperTruck 2 marks a major step forward in long distance trucking. It brings together advanced aerodynamics, a highly efficient and powerful engine system, and a range of smart design improvements.
Beyond its performance, the project shows what is possible for the future of freight transport. It reflects Kenworth’s strong focus on innovation, fuel efficiency, and building a more sustainable future for the trucking industry.
