Integrated Flight/Propulsion Control for Flight Critical Applications: A Propulsion System Perspective

The Pratt & Whitney and Northrop companies together, under the Air Force Wright Research and Development Center (WRDC) sponsored Integrated Reliable Fault-Tolerant Control for Large Engines (INTERFACE II) Program [1, 2], designed and demonstrated an advanced real-time Integrated Flight and Propulsion Control (IFPC) system. This IFPC system was based upon the development of physically distinctive, functionally integrated, flight and propulsion controls that managed the Northrop twin engine, statically unstable, P700 airplane. Digital flight control and digital engine control hardware were combined with cockpit control hardware and computer simulations of the airplane and engines to provide a real-time, closed-loop, piloted IFPC system. As part of a follow-on effort, lessons learned during the INTERFACE II program are being applied to the design of a flight critical propulsion control system. This paper will present both the results of the INTERFACE II IFPC program and approaches toward definition and development of an integrated propulsion control system for flight critical applications.

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Integrated Flight/Propulsion Control for Flight Critical Applications: A Propulsion System Perspective

Volume 2: Aircraft Engine; Marine; Microturbines and Small Turbomachinery ◽

10.1115/91-gt-284 ◽

1991 ◽

Author(s):

Kenneth D. Tillman ◽

Timothy J. Ikeler

Keyword(s):

Control System ◽

Real Time ◽

Air Force ◽

Flight Control ◽

Closed Loop ◽

Fault Tolerant ◽

Lessons Learned ◽

System Perspective ◽

Propulsion Control ◽

Development Center

The Pratt & Whitney and Northrop companies together, under the Air Force Wright Research and Development Center (WRDC) sponsored Integrated Reliable Fault-Tolerant Control for Large Engines (INTERFACE II) Program[1,2], designed and demonstrated an advanced real-time Integrated Flight and Propulsion Control (IFPC) system. This IFPC system was based upon the development of physically distinctive, functionally integrated, flight and propulsion controls that managed the Northrop twin engine, statically unstable, P700 airplane. Digital flight control and digital engine control hardware were combined with cockpit control hardware and computer simulations of the airplane and engines to provide a real-time, closed loop, piloted IFPC system. As part of a follow on effort, lessons learned during the INTERFACE II program are being applied to the design of a flight critical propulsion control system. This paper will present both the results of the INTERFACE II IFPC program and approaches toward definition and development of an integrated propulsion control system for flight critical applications.

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Distributed Flight Control and Propulsion Control Implementation Issues and Lessons Learned

Journal of Engineering for Gas Turbines and Power ◽

10.1115/1.2816319 ◽

1999 ◽

Vol 121 (1) ◽

pp. 96-101 ◽

Cited By ~ 2

Author(s):

W. R. Schley

Keyword(s):

Control System ◽

Distributed Control ◽

Flight Control ◽

Lessons Learned ◽

Distributed Control System ◽

Propulsion Control ◽

Data Bus ◽

Control System Architecture ◽

Typical Design ◽

Control Implementation

This paper addresses the motivations for using a distributed control system architecture, technical challenges, typical functions which are off-loaded to remote terminals, sensor/effector interface issues, data bus selection, technology insertion issues, lessons learned, and objectives for future distributed control implementations. Typical design requirements, constraints, environmental conditions, and operational challenges will be described. Examples of various distributed control system implementations will be discussed, including both propulsion control and flight control examples.

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Development of Real-Time Maneuver Library Generation Technique for Implementing Tactical Maneuvers of Fixed-Wing Aircraft

International Journal of Aerospace Engineering ◽

10.1155/2020/7025374 ◽

2020 ◽

Vol 2020 ◽

pp. 1-12

Author(s):

Do hyeon Lee ◽

Chang-Joo Kim ◽

Man Jung Heo ◽

Joo Wan Hwang ◽

Hee Gyeong Lyu ◽

...

Keyword(s):

Control System ◽

Real Time ◽

Air Force ◽

Flight Control ◽

Pid Control ◽

Control Technique ◽

Proportional Integral Derivative ◽

Flight Control System ◽

Generation Technique ◽

Flight Simulations

This study develops the real-time maneuver library generation technique for performing aggressive maneuvers of fixed-wing aircraft. Firstly, the general maneuver libraries are defined, and then 7th-order polynomials are used to create the maneuver libraries. The attitude command attitude hold (ACAH) system, the rate command rate hold (RCRH) system, and the speed command speed hold (SCSH) system using the proportional-integral-derivative (PID) control technique are designed to minimize the complexity of the flight control system (FCS) and to reduce the weight and volume of the payload. Moreover, the FCS is used for implementing tactical maneuvers. Finally, flight simulations are implemented for the longitudinal loop and Immelmann-turn maneuvers to check the usefulness of the proposed maneuver library generation technique. This study can affect the development of flight techniques for aircraft tactical maneuvers and the modification of air force operational manuals.

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