Adaptive Engine Control with Multiple Constraints

Significant research efforts in control theory is being aimed at achieving faster aircraft engine response. Historically, aircraft engines are known to respond slower than flight actuator systems. The slow response is due to the control system’s necessity to remain within certain constraint factors, including engine airflow, pressure, and temperature limits. Emergency situations demonstrate the need for faster engine response. Research efforts center on adaptive control because it is consistently able to achieve faster engine response compared with classic control, as well as allowing for off-nominal limit control, and offers the ability to further develop safety features. adaptive control uses a novel architecture to obtain fast and robust adaptation. This paper presents an extension of previous work, [1] and improves the transition between nominal and off-nominal control with the use of an integrator. Additionally, it expands the adaptive control architecture from a single constraint system to a system with multiple constraints.