FADECbased

FADECbased refers to systems and architectures that rely on Full Authority Digital Engine Control (FADEC) to manage aircraft engine operation. In a FADECbased setup, digital controllers handle all critical engine functions that previously required mechanical or hydromechanical control, using extensive sensor data and software-driven algorithms to determine fuel metering, ignition timing, and other actuations. The term emphasizes reliance on electronic control with full authority over engine performance rather than manual or semi-automatic controls.

The architecture of a FADECbased system typically includes dual redundant electronic control units, power conditioning hardware, and robust communication interfaces to sensors and actuators. Real-time software runs engine control maps and fault-detection routines, while health-monitoring and data-logging capabilities support diagnostics and prognostics. Redundant channels and fail-safe logic are used to maintain safe operation in the event of a component fault, and self-test or built-in-test procedures verify system integrity during operation and startup.

Functions and features commonly provided by FADECbased systems include precise fuel metering, controlled start and idle procedures, optimized acceleration, variable geometry or bleed control where applicable, and protection modes that prevent engine damage under abnormal conditions. They also support adaptive control, performance optimization, and automatic fault isolation, contributing to improved efficiency, lower emissions, and reduced pilot workload.

Applications are widespread in modern aviation, particularly in civil turbofan engines and various military or high-performance propulsion systems. The FADECbased approach emphasizes reliability, maintainability, and safety through digital, automated engine management.