Ultra Low Cost Engine Control System

Period of Performance: 10/14/1993 - 04/13/1994


Phase 2 SBIR

Recipient Firm

Electronic Concepts & Engineering
3788 Hillandale Road
Toledo, OH 43606
Principal Investigator

Research Topics


Present turbojet engine control systems, which ar e comprised of: controller, fuel metering device, sensors, connectors, and harnesses are the single most expensive subsystem on expendable turbojet engines. The size and cost of expendable turbojet engines has steadily decreased. However the engine control system cost has remained relatively constant. Electronic concepts proposes to demonstrate that significant cost reductions can be realized in expendable turbojet engine control systems by: (1) applying highly integrated circuit technology, (2) utilizing a derivative of automotive fuel metering technology, and (3) by integrating the control electronics, engine sensors and fuel metering devices into a single enclosure thus eliminating expensive harnesses and electrical connectors. The Phase I project succeeded in producing a heavywalled prototype of a working control system. The prototype system successfully controlled an expendable turbojet engine during starting, acceleration, and steady state governing. The successful Phase I control system provides the baseline for the Phase II flightweight control system development. Successful completion of the Phase II effort will lay the foundation for the commercialization of an Ultra Low Cost Engine Control System. Anticipated Benefits: An Ultra Low Cost Engine Control System and associated technology can be directly applied to Commercial and Military turbine engine powered ground start carts, power generating units, and air conditioning carts. In addition a majority of aircraft Auxiliary Power Units (APU's) are powered by small turbine engines which represent an ideal application for Ultra Low Cost Engine Control Systems.