Civil Aerospace

Electronic Engine Controls - EEC

Input ports to an electronic engine control unit

EECs ensure that engines operate with utmost efficiency, while remaining within safe operating limits. EMUs provide the data for assessing the engine’s condition and avoiding operator disruption.

The EEC is a high-integrity, full authority digital control that combines engine sensor information with cockpit instructions to ensure that an engine performs both safely and at an optimal level.

Usually mounted to the fan case of an engine, the EEC is built to continue functioning regardless of the high temperatures, vibration, and humidity it faces. It is also able to withstand the effects of lightning strikes, electromagnetic fields and solar radiation.

Our new generation EEC provides a simpler solution for high-integrity, harsh environment engine control and health monitoring. Compared to traditional controllers, it offers half the cost per function, significantly reduced new product introduction lead times, and lower through-life costs.

Together with the EMU, the EEC provide a complete solution for safe engine control with minimal costs of operation.

Rolls-Royce has been providing EEC solutions to the civil aviation sector for over 40 years. We were one of the pioneers of digital electronic controls, developing a digital controller with full authority that entered service on the Rolls-Royce RB211-524G engine powering the Boeing 747 and 767 aircraft.

Our EECs have been applied to a broad range of aircraft, from large commercial aeroplanes (Trent 1000 engine for the new Boeing 787) to smaller business jets (BR725 engine on the Gulfstream G650).


Capability To Operate In A Harsh Environment

Our EECs are built to handle high levels of vibration, operating temperatures ranging from -55°C to 125°C, high levels of humidity and even the effects of lightning strike and the intense electromagnetic fields generated by airport radar systems.

The EEC’s electronics are also robust enough to withstand the effects of solar radiation that can be experienced at high altitudes, ensuring that there are no interruptions to safety critical functions.

Powered By In-House Technology

The EEC is independently powered by a permanent magnet alternator that is specified and supplied by us.

It also features our own in-house high-integrity, harsh environment Visium™CORE micro-processor. Specifically designed for safety critical control, the processor also forms part of our obsolescence solution for CDS's range of electronic products.

A Speedy Response

Our EEC units have to respond quickly, typically performing a complete control cycle 40 times per second, and even more frequently for certain safety functions.

This ensures high integrity control with fast and appropriate response to anomalies.

Contact us

To find out more information or to arrange a demonstration of our solutions & capabilities, contact a member of our team today.