A Hybrid Sensor Based Backstepping Control Approach with its Application to Fault-Tolerant Flight Control

Recently, an incremental type sensor based backstepping (SBB) control approach, based on singular perturbation theory and Tikhonov’s theorem, has been proposed. This Lyapunov function based method uses measurements of control variables and less model knowledge, and it is not susceptible to the model uncertainty caused by fault scenarios. In this paper, the SBB method has been implemented on a fixed wing aircraft with its focus on handling structural changes caused by damages. A new hybrid autopilot flight controller has been developed for a Boeing 747-200 aircraft after combining nonlinear dynamic inversion (NDI) with SBB control approach. Two benchmarks for fault tolerant flight control (FTFC), named rudder runaway and engine separation, are employed to evaluate the proposed method. The simulation results show that the proposed control approach leads to a zero tracking-error performance in nominal condition and guarantees the stability of the closed-loop system under failures as long as the reference commands are located in the safe flight envelope.

[1]  Nhan Nguyen,et al.  Adaptive Control of a Transport Aircraft Using Differential Thrust , 2009 .

[2]  Eugene A. Morelli,et al.  Real-Time Parameter Estimation in the Frequency Domain , 1999 .

[3]  P. Olver.  Nonlinear Systems , 2013 .

[4]  Marios M. Polycarpou,et al.  Backstepping-Based Flight Control with Adaptive Function Approximation , 2005 .

[5]  Weiping Li,et al.  Applied Nonlinear Control , 1991 .

[6]  Qiping Chu,et al.  Towards Certifiable Advanced Flight Control Systems, A Sensor Based Backstepping Approach , 2011 .

[7]  Frank W. Burcham,et al.  A simulation evaluation of a four-engine jet transport using engine thrust modulation for flightpath control , 1991 .

[8]  Jan Albert Mulder,et al.  Full-Envelope Modular Adaptive Control of a Fighter Aircraft Using Orthogonal Least Squares , 2010 .

[9]  L. G. Sun,et al.  Joint Sensor Based Backstepping for Fault-Tolerant Flight Control , 2015 .

[10]  John J. Burken,et al.  Using Engine Thrust for Emergency Flight Control: MD-11 and B-747 Results , 1998 .

[11]  Thomas Lombaerts,et al.  Fault Tolerant Flight Control, a Physical Model Approach , 2010 .

[12]  E. V. Oort,et al.  Online Aerodynamic Model Structure Selection and Parameter Estimation for Fault Tolerant Control , 2010 .

[13]  Youmin Zhang,et al.  Bibliographical review on reconfigurable fault-tolerant control systems , 2003, Annu. Rev. Control..

[14]  Jan Albert Mulder,et al.  Piloted Simulator Evaluation Results of New Fault-Tolerant Flight Control Algorithm , 2009 .

[15]  O. Stroosma,et al.  A SIMULATION BENCHMARK FOR AIRCRAFT SURVIVABILITY ASSESSMENT , 2008 .

[16]  Clark Borst,et al.  Sensor-Based Backstepping , 2013 .

[17]  Halim Alwi,et al.  Evaluation of a sliding mode fault-tolerant controller for the El Al incident , 2010 .

[18]  E. Lavretsky,et al.  Dynamic Inversion for Nonaffine-in-Control Systems via Time-Scale Separation. Part I , 2005, Proceedings of the 2005, American Control Conference, 2005..

[19]  James W. Fuller.  Integrated Flight and Propulsion Control for Loss-of- Control Prevention , 2012 .

[20]  Ron J. Patton,et al.  FAULT-TOLERANT CONTROL SYSTEMS: THE 1997 SITUATION , 1997 .

[21]  Jan Albert Mulder,et al.  Nonlinear Adaptive Trajectory Control Applied to an F-16 Model , 2008 .

[22]  Uy-Loi Ly,et al.  Total Energy Control System Autopilot Design with Constrained Parameter Optimization , 1990, 1990 American Control Conference.

[23]  Gertjan Looye,et al.  Design and flight testing of nonlinear autoflight control laws , 2012 .

[24]  W. Falkena,et al.  Investigation of Practical Flight Control Systems for Small Aircraft , 2012 .

[25]  Hafid Smaili,et al.  A Simulation Benchmark for Integrated Fault Tolerant Flight Control Evaluation , 2006 .