Two Hybrid Electric Vehicles Put to the Test

UQM Technologies, Inc., a developer of alternative energy technologies, has announced that two technology demonstration hybrid electric High Mobility Multipurpose Wheeled Vehicles (HMMWV pronounced HUMVEE), developed by PEI Electronics, Huntsville, Alabama and powered by UQM propulsion motors, generator and power electronic inverters have been delivered to the U.S. Army’s Aberdeen Proving Grounds for performance testing and evaluation.

GOLDEN, Colorado – June 24, 2002 [] Systems integration, electronics design, and the energy management system for the vehicles was provided by PEI Electronics, Inc., Huntsville, Alabama (PEI), a unit of Integrated Defense Technologies, Inc. Funding for this Department of Defense development effort was provided through AM General under contract to the U. S. Army’s Tank-Automotive and Armaments Command (TACOM), based in Warren, Michigan. As a precursor to this program, PEI developed and built two prototype hybrid electric HUMVEE’s powered by UQM proprietary propulsion systems. One of the vehicles was configured as a “tactical” model incorporating one 55kW generator and four 75 kW propulsion systems, one per wheel, delivering acceleration of zero to 50 m.p.h. in 8 seconds. The second vehicle was configured as a “utility” model incorporating one 100kW generator and two 100 kW propulsion systems, one per axle, and successfully completed a cross-country trip from Washington D.C. to San Francisco. Both models feature on-board power generation capability sufficient to operate field hospitals, telecommunications centers, auxiliary radar equipment and the like, and have demonstrated fuel efficiency improvements of up to 50 percent depending on the vehicle driving cycle. The delivery of the first two vehicles for performance testing, is the culmination of a one year effort to modify the design and performance characteristics of earlier prototype versions of the hybrid electric HMMWV to further refine vehicle performance characteristics. The contract effort, lead by AM General, the manufacturer of the HUMVEE since 1995, was also focused on meeting customer performance specifications in a more production ready design.
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