Colorado-based UQM Technologies, Inc. (NYSE MKT: UQM) has added the PowerPhase HD 250 to its line of components for heavy-duty EVs. This system consists of a permanent magnet motor/generator and a DSP-based controller, and is designed for high-voltage electric and hybrid vehicles, including heavy commercial truck, transit bus and marine applications.

“The PowerPhase HD 250 provides an ideal solution for trucks and buses that are designed to operate at voltages between 450 and 750 volts,” said UQM CEO Eric R. Ridenour. “Commercial vehicle systems are a significant part of our business, and this new system further expands our opportunities within this segment.”

“Higher operating voltage creates lower operating current, enabling lower weight or lower resistance losses in vehicle wiring, and this is an architecture choice for some manufacturers’ electrified vehicles,” said UQM Vice President of Engineering Jon F. Lutz.

The UQM PowerPhase HD 250 provides 900 Nm (664 lb-ft) peak torque and 250 kW (335 hp) peak power. Maximum input (battery) voltage is 750 volts, providing up to 95 percent energy conversion efficiency.

UQM’s PowerPhase systems are currently used in Hino electric buses, Proterra electric buses, Electric Vehicles International medium-duty trucks, Zenith Motors electric vans, Boulder Electric Vehicle commercial vehicles and ReGen Nautic marine propulsion systems.

Source: UQM