High Performance Auxiliary Power Units, Phases I- III Grant uri icon



  • The objective of this project is to develop a high performance, low emission auxiliary power unit (APU) for a hybrid electric vehicle (HEV). This includes a compact, fuel-efficient, and low emission engine as well as a variable load alternator. The APU will be capable of generating 20 to 30 kW of continuous power, enabling the HEV to drive at freeway speeds for long distances (i.e., 250 to 400 miles). Ideally, the unit (exclusive of the gas tank) should weigh approximately 50 pounds and occupy a volume of less than four cubic feet. The unit should also meet the ultra low emission vehicle (ULEV) requirements established by the Southern California Air Quality Management District. Potential applications of APUs in addition to passenger vehicles include use in snowmobiles and other small, personal vehicles.

date/time interval

  • January 1, 1999 - January 1, 2001

local award ID

  • KLK331