ENGINE TEST RESULTS FOR THE T55-L-714 ENGINE ADVANCED ADAPTIVE CONTROL SYSTEM TESTING AT REDSTONE AVIATION PROPULSION TEST AND RESEARCH (RAPTR) FACILITY

摘要

Under a US Army Applied Aviation Technology Directorate (AATD) sponsored engine test program, Goodrich Engine Controls, teamed with Honeywell Engine Systems, demonstrated the feasibility of utilizing an adaptive, fully nonlinear, realtime, aero-thermodynamic (AT) engine model. This model was embedded in the production EMC-100 ECU for the T55 engine, to successfully control the RAPTR engine test facility's T55-L-714 workhorse engine using model synthesized engine parameters. Prior Goodrich research effort demonstrated the ability to adapt a physics-based, aero-thermodynamic model to produce real-time outputs which accurately represent a specific physical engine. Traditional engine control units are designed to govern engine speed, limit engine temperature and maximize engine life based on direct measurement of physical data provided by engine sensors. This research effort has demonstrated the ability to use model based operating data-computed in the embedded aero-thermodynamic engine model, to safely control that engine. The advanced control can use model-based data to diagnose and replace faulted sensors, or synthesize normally unobservable operating states to enhance control capability, and potentially improve engine performance. This paper will present these engine test results under model based control as well as discuss the implications this testing has on future gas turbine engine control in the areas of enhanced engine performance, improved sensor fault detection, engine failure diagnostics, condition based maintenance and increased survivability utilizing model-based data.