Sensor Validation for Turboshaft Engine Torque Sensors

Impact Technologies LLC, with Honeywell Aerospace and Boeing as industry partners, proposes to develop and demonstrate innovative methods for validating and synthesizing torque sensor readings for the T55 engine. The development team will build off its proven success in previous T-55/Chinook-related programs as well as leverage Impact-developed signal synthesis modules and sensor validation techniques with the goal of prototyping a complete torque sensor validation and signal recovery module. The proposed module will increase torque measurement accuracy by utilizing data-driven modeling to estimate healthy signal values for fault identification and signal recovery, it will reduce the occurrence of unplanned torque system calibrations using statistics-based fault detection, and it will consider the contribution of electronics systems to faults using electronics prognostics and health management on the torque meter power supply and signal conditioning units. Software development best practices will be employed to capture and help implement requirements needed to fully realize a practical system for the T-55, and will evaluate limitations required for a future embedded solution on other relevant engine platforms. Finally, a laboratory demonstration of the developed module will facilitate technology readiness for a Phase II program.