SBIR-STTR Award

Modular Electric Propulsion Test Bed Aircraft
Award last edited on: 1/12/2017

Sponsored Program
STTR
Awarding Agency
NASA : DRFC
Total Award Amount
$875,000
Award Phase
2
Solicitation Topic Code
T9.01
Principal Investigator
Michael F Kerho

Company Information

Rolling Hills Research Corporation

420 North Nash Street
El Segundo, CA 90245

Research Institution

----------

Phase I

Contract Number: ----------
Start Date: ----    Completed: ----
Phase I year
2013
Phase I Amount
$125,000
An all electric aircraft test bed is proposed to provide a dedicated development environment for the rigorous study and advancement of electrically powered aircraft. The new test bed aircraft will be developed from an existing conventional airframe and provide a dedicated platform to study, design, and test electrically powered propulsion systems for use in commercial, military, and general aviation vehicles and UAV systems. The test bed aircraft will allow various electrical propulsion system technologies to be tested to determine performance, reliability, safety, and cost. These include various motors, motor controllers, batteries, fuel cells, super capacitors, and propeller technologies. Additionally, the platform could be used to investigate performance characteristics unique to electric propulsion, determine the most accurate methods for measuring energy used and remaining, research redundancy possibilities unique to electric aircraft, and possible hybrid-electric power plant systems. An electric aircraft has several significant advantages over a conventional internal combustion driven aircraft. These include zero, or near zero emissions, increased reliability and safety with only one moving part, reduced noise and vibration, increased comfort, and reduced maintenance. RHRC and the University of Illinois propose to develop an all electric test bed aircraft able to systematically evaluate new and existing technologies, which will make these systems, safe, reliable, and cost effective.

Phase II

Contract Number: ----------
Start Date: ----    Completed: ----
Phase II year
2014
Phase II Amount
$750,000
A hybrid electric aircraft simulation system and test bed is proposed to provide a dedicated development environment for the rigorous study and advancement of hybrid electric powered aircraft. The new test bed and simulation system will provide a dedicated platform and set of analysis tools to study, design, and test hybrid electric powered propulsion components and systems for use in commercial, general aviation, military, and UAV systems. The test bed will allow various hybrid electric propulsion system technologies to be tested to determine performance, reliability, safety, and cost. These include various motors, motor controllers,gas turbines, batteries, fuel cells, super capacitors, propeller, and fan technologies. Additionally, the platform could be used to investigate performance characteristics unique to hybrid electric propulsion, determine the most accurate methods for measuring energy used and remaining, and research redundancy possibilities unique to hybrid electric aircraft. Studies performed during Phase I demonstrated that pure electric aircraft are limited in range and endurance by the specific energy of current battery technology. Although there is a great deal of effort being put into advanced batteries, the most practical solution in the near term is to utilize a hybrid electric system. The proposed Phase II program builds upon the Phase I results by developing a detailed propulsion system simulator model for hybrid electric propulsion systems, with the ultimate goal of a bench test model of the propulsion system. Using a detailed multi-platform/mission trade study, a coupled parallel, uncoupled series, and split series-parallel hybrid system architecture will be compared to determine the most advantageous and efficient. The propulsion system simulator will also be used to perform a sensitivity analysis of each architecture to determine critical performance aspects for individual components.