What is EEC on Airbus A320? (Electronic Engine Computer)

The Electronic Engine Computer (EEC) on the Airbus A320 is a crucial component that plays a vital role in the operation and control of the aircraft’s engines. It is an advanced computer system that continuously monitors, analyzes, and controls various parameters and functions of the engines, ensuring optimal performance while maintaining safety standards. The EEC is responsible for managing engine thrust, fuel efficiency, and overall engine health.

As the technology onboard modern aircraft continues to evolve and improve, the EEC is one of the key advancements that have significantly enhanced the efficiency and reliability of aircraft engines. With its sophisticated capabilities and intricate algorithms, the EEC has revolutionized the way engines are controlled, leading to safer and smoother flights.

How Does the Electronic Engine Computer Work?

The Electronic Engine Computer consists of various sensors, actuators, and control units that work together to monitor and control the engines. Let’s take a closer look at the key components and functions of the EEC:

Engine Control Unit (ECU)

The Engine Control Unit (ECU) is one of the critical components of the Electronic Engine Computer. It receives data from multiple sensors located throughout the engine and analyzes this information to make precise control decisions. The ECU instructs the engine’s fuel system, adjusts the fuel-air mixture, and manages other engine parameters to ensure optimal performance and efficiency.

The ECU continuously communicates with other aircraft systems, such as the flight management system, to coordinate engine operations. It receives commands and inputs from the flight crew, cockpit instruments, and other subsystems, incorporating them into its decision-making process. This collaboration enables the EEC to maintain the desired engine settings throughout the flight, adapting to changing conditions and operational requirements.


The EEC relies on a network of sensors to gather data and monitor various aspects of the engine’s performance. These sensors provide real-time information about parameters such as engine speed, temperature, pressure, and fuel flow. The data collected by these sensors is continuously fed into the EEC, allowing it to maintain optimum engine performance.

For example, the engine speed sensor measures the rotational speed of the engine’s components, enabling the EEC to adjust the fuel flow and engine thrust accordingly. Similarly, temperature and pressure sensors monitor the engine’s operating conditions, allowing the EEC to ensure that the engine remains within safe operating limits.


The EEC also controls various actuators that govern the engine’s operations. Actuators are devices responsible for converting electrical signals from the ECU into mechanical actions. In the case of the EEC, they regulate functions such as fuel flow, engine speed, and thrust reverser deployment.

By precisely adjusting the position of these actuators, the EEC ensures the engine operates within specific parameters set forth by the aircraft manufacturer. This control mechanism maintains the safety and reliability of the engine while optimizing its performance.

Advantages of the Electronic Engine Computer

The Electronic Engine Computer offers numerous advantages that contribute to the overall efficiency and reliability of the Airbus A320’s engines. Here are some key benefits:

Enhanced Fuel Efficiency

The EEC’s advanced algorithms and precise control mechanisms optimize the fuel-to-air mixture, resulting in improved fuel efficiency. By constantly monitoring and adjusting the engine parameters, the EEC ensures that the engine operates at its optimal point, minimizing fuel consumption. This increased fuel efficiency translates into cost savings for airlines and a reduced environmental impact.

Studies have shown that the Electronic Engine Computer can save significant amounts of fuel over the course of a flight. The precise control capabilities of the EEC enable the engines to operate at their most efficient levels, reducing unnecessary fuel burn and emissions.

Enhanced Safety and Reliability

The EEC’s continuous monitoring and control of engine parameters enhance the safety and reliability of the Airbus A320’s engines. The EEC is programmed to detect and respond to abnormalities and potential malfunctions, initiating appropriate actions to prevent engine damage or failure.

Additionally, the EEC incorporates fail-safe mechanisms to ensure that even in the event of a failure or malfunction, the engine can still operate within safe limits. This redundancy in systems contributes to the high level of safety and reliability associated with the A320 aircraft.

Improved Performance and Maintenance

With the EEC’s precise control mechanisms, the engines can consistently deliver optimum performance. By continuously monitoring the engine’s health and performance, the EEC can detect early signs of wear or potential issues, allowing for proactive maintenance and preventing costly breakdowns.

The data collected by the EEC is often used for performance analysis and predictive maintenance, enabling airlines to optimize their maintenance schedules and reduce downtime. This proactive approach to maintenance significantly improves the overall efficiency and availability of the aircraft.

The Electronic Engine Computer has undoubtedly revolutionized the way aircraft engines are controlled and monitored. Its advanced capabilities, precise control mechanisms, and constant monitoring contribute to the optimal performance, enhanced safety, and improved efficiency of the Airbus A320’s engines.

For More: What is ZC on Airbus A320? (Zone Controller)