Integrated propulsion-based flight control system design for a civil transport aircraft

Harefors, M.; Bates, Declan G.

doi:10.1109/cca.2002.1040174

Cited by 9 publications

(9 citation statements)

References 5 publications

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“…This paper describes a design and analyzes the associated performance of a sliding mode FTC scheme using CA for the non-linear aircraft model FTLAB747 [19], [24]. Much of the earlier literature using this software has considered only longitudinal control (apart from [18], [15]). In the work in [15], a propulsion controlled aircraft is considered under the assumption that the engines have thrust vectoring capability, which, with current technology, is only available on advanced modern military aircraft like the Gripen.…”

Section: Introductionmentioning

confidence: 99%

“…Even though the likelihood of a total loss of hydraulics is very small due to hardware redundancy, (triple redundancy is present in most large transport aircraft [5]), there is still a possibility of it occurring -as reported in some incidents during the last 20 years (see [7] for specific examples). These incidents motivated NASA [7], [9], [8], [6] and some researchers [21], [15] to study the use of engine only flight control. Researchers in NASA simulated and flight tested the propulsion controlled aircraft (PCA) concept to show that an aircraft can be controlled using only the engines.…”

Section: Introductionmentioning

confidence: 99%

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Propulsion control of a large civil aircraft using on-line control allocation

Alwi

Edwards

2009

2009 American Control Conference

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This paper explores the possibility of controlling an aircraft using only engine thrust in the event of total control surface failure (due to the loss of hydraulics) using an on-line sliding mode control allocation scheme. Here, both lateral and longitudinal fault tolerant control (FTC) of a non-linear model of a civil aircraft is presented. The simulations have been undertaken using software called FTLAB747. The effectiveness level of the actuators is used by the control allocation scheme to redistribute the control signals to modulate engine thrust when a total hydraulic failure occurs. The simulation results from the non-linear model give good performance and show it is still possible to bring the aircraft to a near landing position without restructuring the controller.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Propulsion control of a large civil aircraft using on-line control allocation

Alwi

Edwards

2009

2009 American Control Conference

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“…PCA has mainly been developed as a means to control the aircraft in emergency situations where the traditional aerodynamic control surfaces are lost for some reasons. These concepts have been tested in simulation and in actual flight tests [19].…”

Section: Introductionmentioning

confidence: 99%

Integrated flight/thrust vectoring control for jet-powered unmanned aerial vehicles with ACHEON propulsion

Cen

Smith

Stewart

et al. 2014

Proceedings of the Institution of Mechanical Engineers, Part G:

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As a new alternative to tilting rotors or turbojet vector mechanical oriented nozzles, ACHEON (Aerial Coanda\ud High Efficiency Orienting-jet Nozzle) has enormous advantages because it is free of moving elements and highly\ud effective for Vertical/Short-Take-Off and Landing (V/STOL) aircraft. In this paper, an integrated flight/ thrust vectoring\ud control scheme for a jet powered Unmanned Aerial Vehicle (UAV) with an ACHEON nozzle is proposed to assess its\ud suitability in jet aircraft flight applications. Firstly, a simplified Thrust-Vectoring (TV) population model is built based\ud on CFD simulation data and parameter identification. Secondly, this TV propulsion model is embedded as a jet actuator\ud for a benchmark fixed-wing ‘Aerosonde’ UAV, and then a four “cascaded-loop” controller, based on nonlinear dynamic\ud inversion (NDI), is designed to individually control the angular rates (in the body frame), attitude angles (in the wind\ud frame), track angles (in the navigation frame), and position (in the earth-centered frame) . Unlike previous research on\ud fixed-wing UAV flight controls or TV controls, our proposed four-cascaded NDI control law can not only coordinate\ud surface control and TV control as well as an optimization controller, but can also implement an absolute self-position\ud control for the autopilot flight control. Finally, flight simulations in a high-fidelity aerodynamic environment are\ud performed to demonstrate the effectiveness and superiority of our proposed control scheme

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“…The majority of results in this field are based on known model of the vertical tail loss aircraft, and derive thrust control command using conventional control methods (see for example References 3,7,10,21 ). In Reference 14 an adaptive control scheme is used to control the aircraft in the presence of unknown actuator failure, when differential trust is used to generate necessary moment.…”

Section: Introductionmentioning

confidence: 99%

Adaptive Control of a Transport Aircraft Using Differential Thrust

Stepanyan

Krishnakumar

Nguyen

2009

AIAA Guidance, Navigation, and Control Conference

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The paper presents an adaptive control technique for a damaged large transport aircraft subject to unknown atmospheric disturbances such as wind gust or turbulence. It is assumed that the damage results in vertical tail loss with no rudder authority, which is replaced with a differential thrust input. The proposed technique uses the adaptive prediction based control design in conjunction with the time scale separation principle, based on the singular perturbation theory. The application of later is necessitated by the fact that the engine response to a throttle command is substantially slow that the angular rate dynamics of the aircraft. It is shown that this control technique guarantees the stability of the closed-loop system and the tracking of a given reference model. The simulation example shows the benefits of the approach.

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Integrated propulsion-based flight control system design for a civil transport aircraft

Cited by 9 publications

References 5 publications

Propulsion control of a large civil aircraft using on-line control allocation

Propulsion control of a large civil aircraft using on-line control allocation

Integrated flight/thrust vectoring control for jet-powered unmanned aerial vehicles with ACHEON propulsion

Adaptive Control of a Transport Aircraft Using Differential Thrust

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