Electronic Engine Controls (EEC)

We have been providing high integrity electronic engine control solutions for over 40 years. We were one of the pioneers of digital electronic controls, developing a digital controller with "full authority" which entered service on the Rolls-Royce RB211-524G engine powering the Boeing 747 and 767.

Our new generation of EECs

Our current product line has been applied to a broad range of aircraft, including large commercial (Rolls-Royce Trent 1000 engine for the new Boeing 787), business jets (Rolls-Royce BR725 engine on the Gulfstream G650) and military (Rolls-Royce T56-A-427A Turboshaft for the E-2D Advanced Hawkeye).

Our new generation EEC provides:

• a simpler solution for high integrity, harsh environment engine control and health monitoring
• half the cost/function and significantly reduced new product introduction lead-times and costs
• a platform for our solution to piece-part obsolescence

Performance in a Harsh Environment

EECs ensure that the engine operates with utmost efficiency, whilst remaining within safe operating limits. These units have to respond quickly, typically performing a complete control cycle 40 times a second, and even more frequently for certain safety functions. The EEC is independently powered by a Permanent Magnet Alternator, which is specified and supplied by us. Our new product line of EECs features our in-house high integrity, harsh environment GR series of processor, which also forms part of our obsolescence solution for our range of electronic products.

Our EECs are designed to operate in a harsh environment, with high levels of vibration, an operating temperature ranging from -55°C to 125°C, in high levels of humidity and to withstand the effects of lightning strike and the intense electro-magnetic fields generated by airport radar systems. At high altitudes the electronics must be robust against the effects of solar radiation, which could otherwise cause an interruption to a safety-critical function.