The purpose of FADEC (Full Authority Digital Engine Control) and Electronic Engine Control (EEC) is to regulate and optimize the performance of aircraft engines. These systems use digital technology to control various engine parameters such as fuel flow, ignition timing, and thrust, resulting in improved efficiency, reliability, and safety.
The main difference between FADEC and EEC is that FADEC is a more advanced and comprehensive system. It not only controls engine parameters but also monitors and diagnoses engine health, adjusts for changing flight conditions, and provides automatic backup in case of a failure. EEC, on the other hand, is a simpler system that only controls basic engine functions.
Both FADEC and EEC use sensors to collect data on engine performance and send it to a digital computer. This computer uses algorithms and pre-programmed logic to analyze the data and make adjustments to the engine settings. These adjustments are communicated to the engine through electrical signals, rather than traditional mechanical controls.
The use of FADEC and EEC results in several benefits for aircraft engines, including improved fuel efficiency, reduced emissions, and increased reliability. These systems also allow for more precise control of engine parameters, leading to smoother and more consistent performance.
One potential drawback of FADEC and EEC is their reliance on digital technology. If the system fails, it may be more difficult for pilots to manually control the engine. Additionally, these systems require regular maintenance and updates, which can be costly and time-consuming.