On‐line system identification for aircraft with distributed control effectors

Buffington, James M.; Chandler, P.; Pachter, Meir

doi:10.1002/(sici)1099-1239(19991215)9:14<1033::aid-rnc451>3.0.co;2-#

Cited by 41 publications

(25 citation statements)

References 7 publications

(2 reference statements)

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“…Control allocation (CA) has emerged as one potential technique for systematically dealing with over actuated plants. Researchers, for examples Buffington et al [1] and Davidson et al [2] have shown the capabilities of CA for systems with faults and failures. One of the benefits of CA is that the controller structure does not have to be reconfigured in the case of faults and it can deal directly with total actuator failures without requiring reconfiguration/accommodation of the controller, because the CA scheme 'automatically' redistributes the control signal.…”

mentioning

confidence: 99%

Fault Tolerant Sliding Mode Control Design with Piloted Simulator Evaluation

Alwi¹,

Edwards²,

Stroosma³

et al. 2008

Journal of Guidance, Control, and Dynamics

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This paper considers sliding mode allocation schemes for fault tolerant control. The schemes allow redistribution of the control signals to the remaining functioning actuators when a fault or failure occurs. The paper analyzes the schemes and determines conditions under which closed-loop stability is retained for a certain class of faults and failures. It is shown that faults and even certain total actuator failures can be handled directly without reconfiguring the controller. The results obtained from implementing the controllers on the SIMONA research flight simulator, configured to represent a B747 aircraft, show good performance in both nominal and failure scenarios even in wind and gust conditions.

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mentioning

confidence: 99%

Fault Tolerant Sliding Mode Control Design with Piloted Simulator Evaluation

Alwi¹,

Edwards²,

Stroosma³

et al. 2008

Journal of Guidance, Control, and Dynamics

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“…Control Allocation (CA) has emerged as one of the most studied techniques when dealing with such problems (e.g., Enns, 1998;Bošković and Mehra, 2002;Buffington et al, 1999;Davidson et al, 2001). One benefit of using a CA structure for fault tolerant control is that the controller remains the same and the control effort is distributed to all available actuators without reconfiguration.…”

Section: Fault Tolerant Controlmentioning

confidence: 99%

Sliding mode methods for fault detection and fault tolerant control with application to aerospace systems

Edwards¹,

Alwi²,

Tan³

2012

International Journal of Applied Mathematics and Computer Science

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Sliding mode methods have been historically studied because of their strong robustness properties with regard to a certain class of uncertainty, achieved by employing nonlinear control/injection signals to force the system trajectories to attain in finite time a motion along a surface in the state-space. This paper will consider how these ideas can be exploited for fault detection (specifically fault signal estimation) and subsequently fault tolerant control. It will also describe applications of these ideas to aerospace systems, including piloted flight simulator results associated with the GARTEUR AG16 Action Group on Fault Tolerant Control. The results demonstrate a successful real-time implementation of the proposed fault tolerant control scheme on a motion flight simulator configured to represent the post-failure EL-AL aircraft.

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“…This allows freedom to design fault tolerant control (FTC) systems to maintain stability and acceptable performance during faults and failures. Control allocation (CA) is one approach to manage the actuator redundancy for different control strategies handling actuator faults (see for example [5,8]). There is extensive literature on CA which discusses different algorithms, approaches and applications: [11] discusses two (broadly) linked approaches (linear and quadratic programming) for CA based on finding the 'best solution' to a system of linear equations.…”

Section: Introductionmentioning

confidence: 99%

“…The work in [5,8] uses CA as a means for fault tolerant control (FTC). The benefits of CA is that the controller structure does not have to be reconfigured in the case of faults and it can deal directly with total actuator failures without requiring reconfiguration/accommodation of the controller: the CA scheme automatically redistributes the control signal.…”

Section: Introductionmentioning

confidence: 99%

Fault Tolerant Control Using Sliding Modes with On-Line Control Allocation

Alwi

Edwards

2010

Lecture Notes in Control and Information Sciences

140

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This paper proposes an on-line sliding mode control allocation scheme for fault tolerant control. The effectiveness level of the actuators is used by the control allocation scheme to redistribute the control signals to the remaining actuators when a fault or failure occurs. The paper provides an analysis of the sliding mode control allocation scheme and determines the nonlinear gain required to maintain sliding. The on-line sliding mode control allocation scheme shows that faults and even certain total actuator failures can be handled directly without reconfiguring the controller. The simulation results show good performance when tested on different fault and failure scenarios.

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On‐line system identification for aircraft with distributed control effectors

Cited by 41 publications

References 7 publications

Fault Tolerant Sliding Mode Control Design with Piloted Simulator Evaluation

Fault Tolerant Sliding Mode Control Design with Piloted Simulator Evaluation

Sliding mode methods for fault detection and fault tolerant control with application to aerospace systems

Fault Tolerant Control Using Sliding Modes with On-Line Control Allocation

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