FOR IMMEDIATE RELEASE
CONTACT:
Steve Sanders
Cummins Inc.
(812) 377-0419
stephen.sanders@cummins.com
CUMMINS ANNOUNCES RESULTS OF ATLAS 2.8-LITER DIESEL ENGINE PROGRAM
Engine On Display At Mid-America Trucking Show, March 26-28 In Louisville, Ky.
COLUMBUS, Ind. (March 24, 2015) – Cummins Inc. (NYSE: CMI) will showcase the results of a
four-year joint program with the U.S. Department of Energy (DOE) at the Mid-America Trucking
Show. The Advanced Technology Light Automotive Systems (ATLAS) program was initiated to
develop a commercially viable diesel engine for the half-ton pickup truck market that is capable
of meeting future Tier 2 Bin 2 emissions regulations and Corporate Average Fuel Economy
(CAFE) and stringent greenhouse gas (GHG) requirements out to the year 2025.
The demonstration vehicle, provided by Nissan North America, is a 2010 Nissan Titan®
originally equipped with a gasoline V8 engine. In addition to meeting fuel-economy and
emissions requirements, the new engine needed to accomplish the same work as the large gas
V8, so maintaining a torque output of 385 lb-ft (522 N•m) was necessary. The Cummins team
chose a 4-cylinder ISF2.8 base engine to begin research, and from there, the evolution began.
“When we launched ATLAS, the team understood that they had to think outside the box to
achieve our targets,” said Michael Ruth, Director/Technical Project Leader, Advanced LightDuty. “Specifically, we knew that weight reduction, advanced emissions control technologies,
advanced thermal management and powertrain integration would be critical to meeting all of the
requirements. The challenge was making those significant advancements while ensuring that
the engine we produced would be commercially viable.”
The end result after the four-year effort was a 362-lb, 2.8-liter engine with an aluminum
block, head and oil pan, a magnesium valve cover and an engine-mounted emissions control
system. The ATLAS engine, including the on-engine aftertreatment system, weighs in at
approximately 80 lb lighter than the original all-aluminum gasoline V8.
The Highway Fuel Economy Test (HFET) and FTP-75 Test (city) cycles demonstrated fuel
economy over 35 mpg and 25.5 mpg, respectively. This is approximately a 53 percent increase
in CAFE fuel economy at 28.9 mpg, as compared with the production gasoline V8 fuel economy
of 18.9 mpg. The Cummins team not only surpassed all fuel-economy targets, but also achieved
criteria emissions lower than the stringent Tier 2/Bin 2 GHG levels.
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Page 2 – Cummins Announces Results Of ATLAS 2.8-Liter Diesel Engine Program
The ATLAS engine uses advanced technologies to meet the future regulations. One of the
most notable features is the aluminum block. While not visible from outward appearances, the
engine is a through-bolt design with a structural cradle above the oil pan and another above the
cylinder head, “sandwiching” the block and head and enabling very high cylinder pressure
capabilities.
A “dual loop” Exhaust Gas Recirculation (EGR) system with both low- and high-pressure
circuits and switchable valve timing improve light load emissions output and allow for increased
power density of the engine. The overhead camshaft is driven by belt-in-oil technology. This
lubricated belt system is designed to last the life of the engine. The ATLAS engine also uses
ceramic glow plugs, a High Pressure Common Rail (HPCR) piezo-style fuel system complete
with a Bosch® high-pressure pump and a VGT™ Turbocharger. The complete package is
controlled by Cummins controls technology.
Another unique feature is the engine-mounted aftertreatment. In partnership with Johnson
Matthey,® an on-engine catalyst was developed that has Selective Catalytic Reduction (SCR)
wash-coat technology applied directly to the particulate filter.
In addition to the state-of-the-art diesel technology, an 8-speed ZF 8HP70 kept the engine
operating at an optimum speed, helping to achieve a more than 50 percent fuel-economy
improvement over that of the gasoline V8. The remainder of the truck’s original running gear
was unchanged.
Although the ATLAS engine is a research project, it was subject to all of the design
standards and rigorous testing that Cummins performs on all products to ensure that the
customer is receiving the most dependable and durable diesel engine available. On-road
testing, towing, cold weather and chassis dyno testing, to verify that the ATLAS 2.8L met the
U.S. emissions standards it was being measured against, resulted in a successful proof of
concept. SAE International recognized the ATLAS team with the John Johnson Outstanding
Research in Diesel Engines Award for their work, as published in the SAE paper
Thermodynamic Systems for Tier 2 Bin 2 Diesel Engines (papers.sae.org/2013-01-0282).
Final plans to officially close Project ATLAS include a ride-and-drive event and final
presentation at the DOE's 2015 Annual Merit Review, June 8-12 in Arlington, Va. For more
information on the Annual Merit Review, visit annualmeritreview.energy.gov.
Also on display alongside the ATLAS engine will be the current Cummins offerings for the
North American pickup market: the 555 lb-ft (752 N•m), 5.0L V8 Turbo Diesel in the all-new
2016 Nissan Titan XD, expected to go on sale in late 2015, and the best-in-class 865 lb-ft
(1173 N•m), 6.7L Turbo Diesel in the one-ton Dodge Ram® 3500.
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Page 3 – Cummins Announces Results Of ATLAS 2.8-Liter Diesel Engine Program
About Cummins Inc.
Cummins Inc., a global power leader, is a corporation of complementary business units that
design, manufacture, distribute and service diesel and natural gas engines and related
technologies, including fuel systems, controls, air handling, filtration, emission solutions and
electrical power generation systems. Headquartered in Columbus, Ind. (USA), Cummins
currently employs approximately 54,600 people worldwide and serves customers in
approximately 190 countries and territories through a network of approximately 600 companyowned and independent distributor locations and approximately 7,200 dealer locations.
Cummins earned $1.65 billion on sales of $19.2 billion in 2014. Press releases can be found on
the Web at cummins.com or cumminsengines.com. Follow Cummins on Twitter at
http://twitter.com/cumminsengines and on YouTube at http://youtube.com/cumminsengines.
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