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Cummins to Build Hybrid Class 6 Vehicle Reducing Fuel 50%

"The electrified powertrain with an appropriately selected engine is critically important to developing a plug-in hybrid electric vehicle system,” said Wayne Eckerle, VP Cummins Inc.

April 13, 2016

Cummins has announced it has been awarded a $4.5 million grant from the U.S. Department of Energy to develop a Class 6 commercial plug-in hybrid electric vehicle that can reduce fuel consumption by at least 50 percent over conventional Class 6 vehicles. Cummins is partnering with PACCAR on the project. The full team includes representatives from The Ohio State University, National Renewable Energy Laboratory and Argonne National Laboratory.

When fully loaded, Class 6 vehicles weigh between approximately 19,000 and 26,000 pounds and typical examples include school buses or single axle work trucks.

Powertrain optimization

With their expertise in internal combustion engines and related products, Cummins researchers will optimize the powertrain by selecting the engine with the best architecture to use as an electric commercial vehicle range extender, using the engine to manage the charge level of the all-electric drive battery pack. The range extender will be integrated, using advanced vehicle controls, with the electrified powertrain and other applicable technologies.

Ultimately, the researchers aim to demonstrate improved fuel consumption and state of the art drivability and performance regardless of environmental conditions.

 “The close integration and control of the electrified powertrain with an appropriately selected engine is critically important to developing a plug-in hybrid electric vehicle system,” said Wayne Eckerle, Vice President, Research and Technology, Cummins Inc. “We believe that through the team’s efforts we can soon make these innovations commercially available, which has the potential to translate into substantial savings annually per vehicle, helping our customers and the environment.”

The reduction of fuel consumption will be met or exceeded during a wide-range of drive cycles designed to meet the needs of a wide variety of commercial fleet operators. The fuel reduction goals will be achieved through the use of an electrified vehicle powertrain, optimization of the internal combustion engine operation, and other technologies including intelligent transportation systems and electronic braking.

Source: Cummins

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