UQM Selects First Electric Bus Customers for PowerPhaseDT Drivetrain Pilot Program

UQM has selected the first electric bus customers who will adopt and test its PowerPhaseDT drivetrain solution offering more speed and torque, as well as improved packaging and efficiency.

UQM Technologies (UQM) has secured global commercial customers as early adopters of its full drivetrain solution, the PowerPhaseDT. These early adopters include Hybrid Kinetic Group, Wuzhoulong Motors and ITL for a Yangtse full-size bus in China and ADOMANI in the U.S. These customers will work in close collaboration with UQM, and suppliers Pi Innovo and Eaton, to develop heavy-duty commercial and transit all-electric vehicles, enabling them to rapidly deploy vehicles to market. The PowerPhaseDT will be delivered to early adopters this fall for pilot program deployment.

The UQM drivetrain in the PowerPhaseDT provides a greater speed and torque range than direct drive systems, allowing smaller electric motors to drive large vehicles. The new system also allows for improved packaging, greater efficiency, greater payload capacity and lower cost when compared with direct drive or single-speed drivetrain strategies.

“These key customers represent strategic markets, which will increase speed to market for this drivetrain,” says Joe Mitchell, President and CEO of UQM. “After extensively vetting many interested parties, UQM has selected these partners. They have all expressed a sincere desire to work with us on the initial launch, understand the advantages of the UQM PowerPhaseDT system and provide the market potential for significant volume utilizing this product solution. This is the ideal drivetrain solution for electric and range-extended commercial vehicles.”

PowerPhaseDT uses UQM’s current PowerPhase HD220/HD250 motor and inverter system, Eaton’s two-speed transmission and Pi Innovo’s transmission control unit, creating a fully electric drivetrain system. This allows customers in the medium- and heavy-duty EV commercial markets to achieve increased performance in areas of gradability, acceleration and efficiency. The system also addresses the need for full transmission EV systems, as enhanced performance and efficiency requirements are mandated by customer drive cycles, battery costs and stringent environmental regulations.

As battery costs rapidly decrease, heavy-duty commercial and transit markets see the economic potential of electric drive vehicles compared to large diesel engines and multispeed transmissions. Fuel savings of pure electric vehicles (21 mpg equivalent) compared with traditional diesel (4 mpg) and hybrid systems (6 mpg) is enough to quickly recover the investment in an electric drive.

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