Freightliner Trucks in North America has introduced the 2014 Cascadia Evolution Class 8 (heavy-duty) model which is powered by Detroit’s DD15 and features some of the most advanced aerodynamic enhancements in the industry.
The Cascadia Evolution is claimed to deliver up to seven percent better fuel economy over an EPA 2010-compliant Cascadia equipped with a first-generation aerodynamic package and up to a five percent improvement compared to a current model year (2013) Cascadia equipped with the latest aerodynamic upgrades.
“With the introduction of the Cascadia and Detroit DD15 in 2007, our priority was to help customers lower their total cost of ownership through improved fuel efficiency and performance,” said David Hames, general manager, marketing and strategy for Daimler Trucks North America (DTNA). “The Cascadia and the DD15 have since made a powerful impression on businesses.
“Now, with the Cascadia Evolution, we are building upon our commitment to maximising our customers’ bottom lines with new product advancements that will deliver unprecedented fuel efficiency.”
The optimised aerodynamic features on the new Cascadia Evolution were developed using DTNA’s proprietary, state-of-the-art wind tunnel – the only full-scale, OEM-owned and operated wind tunnel for heavy-duty trucks in North America. In addition, the truck was extensively tested on highways throughout the United States, and underwent almost three million miles in combined reliability and fuel economy testing.
With new, standard features that seamlessly combine the Cascadia’s already sleek profile with enhanced aerodynamics, the Cascadia Evolution incorporates several frontal area updates designed to improve airflow and aerodynamics including a new air dam, bumper closure and a hood-to-bumper fill. It also includes an improved windshield seal, elliptical-shaped aerodynamic mirrors and an integrated antenna. New wheel covers on the drive tandem, chassis side fairings and 20-inch side extenders further contribute to the truck’s efficiency.
Cooling enhancements include a 1400 square inch radiator, which features a revised baffling system, and new radiator mounting design that contribute to improved cooling capacity and increased durability.
The newly designed DD15 engine features a proprietary asymmetric turbocharger and next-generation amplified common-rail (ACRS) fuel injection system. The asymmetric turbocharger is less complex than variable geometry turbos and, because it is proprietary, is optimally matched to the DD15’s EGR system for best real world fuel consumption. The ACRS delivers higher injection pressure at low engine speeds for better combustion control across the entire rev range.
In February 2012, the Environmental Protection Agency (EPA) certified DTNA’s complete portfolio of model year 2013 on-highway, vocational and medium-duty vehicles as fully compliant with the new GHG14 regulations. DTNA is said to be the first and at this stage (early 2012) only North American commercial vehicle manufacturer to be certified as GHG14 compliant.