Heavy Duty Trucking

AUG 2014

The Fleet Business Authority

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FuelSmarts i 30 HDT • AUGUST 2014 www.truckinginfo.com "new" components on this truck were literally handmade and genuinely one- of-a-kind. There was very little different about this truck from the driver's perspective. It was a typical — albeit highly modified — Model 579. The modifications included things like aluminum ma- trix brake drums and magnesium crossmembers, not things that make glaring impressions on a test drive. The seats were the same, and so was the dashboard, more or less. The handling was as I expected, and the visibility from the cab just fine. That's the kind of stuff one notices on a typical test drive. What I couldn't notice was much of the work Cummins did on the project. The engine team, led by David Koeber- lein, Cummins' principal investigator for SuperTruck, achieved better than 22% improvement in brake thermal efficiency for the engine through improvements in design such as gas-flow optimization, a reduction in parasitic losses, improved aftertreatment, an increased compression ratio, and optimization of the piston- bowl shape. They also slowed the cruise rpm of the engine by about 200, which I did ect and the truck from these two, and spent an eye-opening 10 hours driving the truck with them over parts of the same test route they used to prove the truck's capabilities — U.S. Route 287 in north-central Texas. This was no ordinary test drive, as if I was evaluating the latest model or trying out some new option. Many of the Jim Park • Equipment Editor It's pretty cool driving around in a $40 million tractor-trailer. The sum of its parts don't add up to quite that much, but the figure rep- resents a portion of the funding grant from the U.S. De- partment of Energy that enabled Cum- mins and Peterbilt to turn their best and brightest engi- neers loose in the DOE SuperTruck sandbox. I recently spent two days in Den- ton, Texas, with the Cummins-Peterbilt SuperTruck and two of its creators, Bruce Bezner, a project engineer in the vehicle performance and engineer- ing analysis group, and Ken Damon, the manager of Peterbilt's SuperTruck Project. I learned a lot about the proj- How does the super-efficient technology feel behind the wheel? Driving a SuperTruck The Cummins-Peterbilt SuperTruck was the first to emerge from the De- partment of Energy's groundbreaking technology demonstration project. Beneath all this new hard- ware beats a Cummins ISX15. This waste heat recovery system is the first to be successfully demon- strated on a truck, but it's not yet ready for market. Cummins is shooting for an 18- to 24-month ROI. 8

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