Volvo Trucks introduces new aerodynamic improvements by applying a concept from the aviation industry to its heavy trucks. The manufacturer speaks of subtle yet effective changes that are expected to significantly improve aerodynamics: air flow stabilizers on the cabin, extended air deflectors, and modified chassis fairings.
Increase Efficiency
This is expected to further improve range, fuel consumption, and CO₂ emissions by up to two percent in addition to the efficiency gains already achieved. The Volvo FH Aero, with these aerodynamic improvements, is up to seven percent more fuel-efficient than the previous Volvo FH.
According to the company, these new features are now available. They will be offered in various combinations for the models
Volvo FH, Volvo FH Aero, and Volvo FM - however, air flow stabilizers are only available for the Volvo FH and Volvo FH Aero. The benefits apply to all types of drive systems - electric, gas, and diesel trucks, according to the manufacturer.
“The time we spent in simulations and in the wind tunnel has paid off - with these new cabin modifications, we are building on the major aerodynamic improvements of the last year, from which our customers will benefit,” explains Jan Hjelmgren, Head of Product Management, Volvo Trucks.
Air Flow Stabilizers
The air flow stabilizers are the most important innovation. They are mounted on the upper corners of the cabin next
to the windshield and with their slanted fins, they control how the air flows around the corners of the cabin.
According to Anders Tenstam, Senior Technology Expert Aerodynamics at Volvo Trucks, unconventional methods have been used, employing a technique normally used in airplanes, Formula 1 cars, and wind turbines.
“The upper corners of the cabin are aerodynamically critical, and thanks to our new Camera Monitor System (CMS) we were able to unlock new potentials - by using small fins that control the airflow on a micro level, achieving a macroscopic effect,” says Tenstam.
According to him, these insights will allow the introduction of further aerodynamic concepts. However, the air flow stabilizers have advantages
not only in terms of aerodynamics.
Two additional improvements are possible: extended air deflectors by 50 millimeters, according to the manufacturer, reduce the gap between the cab and the trailer, and modified chassis fairings allow for better alignment with the rear fender.
Modern Cab
The overall effect of the three new features is greater than the sum of the individual effects, says Volvo Trucks. And in the Volvo FH Aero, the enhancement of fuel efficiency through aerodynamics in a modern truck cab can be seen.
The extension of the cab by 24 centimeters and various modifications to reduce air resistance would lead to significant fuel savings - especially for long-haul trucks with high
