Advanced Full Authority Digital Electronic Controller

Advanced Full Authority Digital Electronic Controller

A-FADEC comprises engine-mounted Digital Electronic Control Unit (DECU) with control laws embedded in it, engine fuel metering units, hydraulic actuation systems, engine sensors and a dedicated permanent magnet power generation unit. A-FADEC being the safety critical system, has several levels of redundancies built-in both in terms of electrical and hydraulics. Design features specific to meet safety requirements of a single engine aircraft application. 

  • Model based control philosophy
  • Integrated engine health management functions for life and usage monitoring
  • Control loops for fuel flow rate, exhaust nozzle area, compressor and fan variable geometry
  • Engine mounted fuel cooled chassis with vibration / shock isolators
  • DO 178B level A compliant software design process
  • Interfaces for coordinated flight and propulsion system control
  • Dual Electrical and Hydraulic redundancy with Cross Channel Data Link (CCDL)
  • Fault detection, isolation and accommodation logics with gracefully degraded control modes  
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