Hardware design of Dual Channel turbofan engine fuel flow controller

In this paper, first the turbofan engine is modeled and then the fuel flow controller is designed based on the Min-Max algorithm. The engine control system is designed as a dual channel, which means two controllers independent of each other but connected to each other. In the Model-in-the-Loop (MIL) test, the controller and the engine model are run on the computer, but for the Hardware-in-the-Loop (HIL) test, the controller is implemented on an Arduino board that connects to the computer model via USB cable. The main purpose of the controller is to comply with engine restrictions, to provide fuel flow based on the pilot's desired trust in the minimum time and no rapid changes in fuel flow. The results of MIL and HIL tests were evaluated for different inputs, which shows that the controller correctly observed the above notes. The only difference between the HIL and MIL test results is the lower speed of the controller in the HIL test.