Trucker 860 Volvo Supertruck Doe Dc

Volvo SuperTruck project: a 'knowledge accelerator'

Sept. 15, 2016
Two fleets to help test SuperTruck as Volvo team rolls straight into SuperTruck II

WASHINGTON. At Volvo's unveiling Tuesday of the truck it produced under the Dept. of Energy's (DOE) SuperTruck project, the company said the effort had been illuminating, helping its engineers design a vehicle not by improving this or that element but as a whole.

"We looked at it as a knowledge accelerator," said Göran Nyberg, president of Volvo Trucks North America. "It's a milestone in our history."

Part of DOE's objective with this project — and for the next iteration of it announced earlier this year — is feasibility, the idea being to produce technologies and innovations that'll actually make it into trucks on North American roads. Volvo took an accordingly measured approach to its SuperTruckNyberg explained, considering practicality for commercial production of the different technologies employed.

Amid a group of reporters and others, VTNA President Göran Nyberg (closest at center) and SuperTruck project manager Pascal Amar (center right) pop the hood of Volvo Trucks' SuperTruck and give U.S. Energy Sec. Ernest Moniz (center left) a tour. (click to enlarge — Aaron Marsh/American Trucker)

U.S. Sec. of Energy Ernest Moniz toured the Volvo SuperTruck outside the department's headquarters and expanded on that point. "I think a big part of it is going to be to keep working on the engineering to get the costs down so that these efficient trucks become the standard in the United States and frankly, in the global market," he said, noting ongoing efforts under SuperTruck II.  

SuperTruck I goals

The target for SuperTruck project participants was to deliver a truck capable of 50% greater freight efficiency than a 2009 truck baseline, and Volvo's SuperTruck overshot the goal with 88% higher freight efficiency. It's a pretty straight calculation: freight efficiency is freight tonnage multiplied by miles per gallon the vehicle gets. Per project rules, Volvo's SuperTruck efficiency was calculated with the truck loaded to 65,000 lbs. and doing a constant 64 mph.

Here are some more stats: Volvo's SuperTruck boasts more than a 70% improvement in fuel economy compared with that 2009 baseline, achieving better than 12 mpg; Nyberg said that in recent testing, the truck is hitting 13 mpg. And thanks to aerodynamic improvements on the SuperTruck, Volvo's 2016 VNL series trucks benefitted from improved bumper, chassis and roof aerodynamics good for up to a 3.5% increase in fuel economy.

A look at the Volvo SuperTruck from the rear showing extensive aerodynamic enhancements. (click to enlarge — Aaron Marsh/American Trucker)

In addition, as Volvo announced earlier, engine innovations that came about under the SuperTruck project can deliver up to 6.5% greater fuel efficiency in the company's 2017 powertrains. Those include common rail fuel injection, turbo compounding and Wave Piston technologies.

Instead of a typical domed piston, the Wave Piston has what look like divots all around the top that focus the injected fuel-air mixture back toward the center of the combustion chamber and promote a cleaner, more complete burn. "It's one of my personal favorites," said Pascal Amar, senior project manager for Volvo Group North America, discussing various Volvo SuperTruck technologies. "It's a relatively simple change that has a huge impact."

Amar pointed out that the SuperTruck is 3,200 lbs. lighter than a standard truck. It was more than that, though — that's a net weight. Reducing weight was even more necessary because of all the additional technology added to the truck. The Volvo team achieved the weight reduction through things like an almost entirely aluminum frame on the tractor, and "we didn't just replace steel with aluminum," Amar contended, but rather built a frame specifically taking advantage of aluminum's properties.

 
For more, including a discussion of some technologies that Volvo says aren't quite ready for prime time--and what might be around the corner for the SuperTruck II program, see the full report on FleetOwner.com.
About the Author

Aaron Marsh

Before computerization had fully taken hold and automotive work took someone who speaks engine, Aaron grew up in Upstate New York taking cars apart and fixing and rewiring them, keeping more than a few great jalopies (classics) on the road that probably didn't deserve to be. He spent a decade inside the Beltway covering Congress and the intricacies of the health care system before a stint in local New England news, picking up awards for both pen and camera.

He wrote about you-name-it, from transportation and law and the courts to events of all kinds and telecommunications, and landed in trucking when he joined FleetOwner in July 2015. Long an editorial leader, he was a keeper of knowledge at FleetOwner ready to dive in on the technical and the topical inside and all-around trucking—and still turned a wrench or two. Or three. 

Aaron previously wrote for FleetOwner. 

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