UQM Technologies Debuts Solution for Heavy-Duty Electric Powertrains


UQM Technologies Inc. has added the PowerPhase HD 250 propulsion systems to its product line for heavy-duty vehicles, including commercial trucks, transit buses and other applications.

The new PowerPhase HD 250 provides solutions for customers that have higher voltage and power requirements for their electric and hybrid-electric powertrains, the company says.

‘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,’ says Jon F. Lutz, vice president of engineering of UQM Technologies.

The PowerPhase HD 250 provides 900 Nm (664 lb-ft) peak torque, 250 kW (335 hp) peak power and increases the maximum input (battery) voltage up to 750 volts. Providing up to 95% energy conversion efficiency, this system consists of an optimized permanent magnet motor/generator and a full-featured digital signal processor (DSP) based controller.

UQM currently supplies its PowerPhase systems globally to power Hino electric city buses, Proterra electric transit buses, Electric Vehicles International medium-duty trucks and walk-in vans, Zenith Motors electric vans, Boulder Electric Vehicle commercial vehicles and ReGen Nautic marine propulsion systems.

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