Multiple-Model Adaptive Fault-Tolerant Control of a Planetary Lander

Boskovic, J.D.; Jackson, Joseph A.; Mehra, Raman K.; Nguyen, Nhan T.

doi:10.2514/1.42719

Cited by 101 publications

(56 citation statements)

References 11 publications

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“…Thrust vector control (TVC) problems [22][23][24] may be caused by hardware issues regarding the actuators or power supplies, or it may be due to software issues regarding the improper commands being sent to the actuators. These problems could manifest themselves by actuators failing to hard over (maximum angle), failing in place, or failing to the null position.…”

Section: Thrust Vector Control Problemmentioning

confidence: 99%

Pseudospectral Model Predictive Control for Exo-atmospheric Guidance

Rahman¹,

Zhang²,

Yang³

et al. 2015

International Journal of Aeronautical and Space Sciences

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This paper suggests applying pseudospectral model predictive method for exo-atmospheric guidance. The method is a fusion of pseudospectral law and model predictive control, in which a two point boundary value problem is formulated using model predictive approach and solved by applying pseudospectral law. In this work, the method is applied to exo-atmospheric guidance with specific target requirement. The existing exo-atmospheric guidance methods suffice general requirements for guidance, but cannot ensure specific target constraints; whereas, the presented method is able to do so. The proposed guidance law is assessed through simulation of perturbed cases, and the tests suggest that the method is able to operate semiautonomously under control and thrust vector perturbations.

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Section: Thrust Vector Control Problemmentioning

confidence: 99%

Pseudospectral Model Predictive Control for Exo-atmospheric Guidance

Rahman¹,

Zhang²,

Yang³

et al. 2015

International Journal of Aeronautical and Space Sciences

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“…The multiple-model-based adaptive actuator failure compensation control methods have been used in the literature for aircraft flight control systems in the presence of failures [14,15,17]. The simulation study on the Boeing 747 dynamics model presented in the next section is to show a possible application.…”

Section: Remarkmentioning

confidence: 99%

“…It would be more desirable to employ a multiple-model adaptive control approach [6][7][8][9][10][11][12] to solve such failure compensation control problems. In the literature [13][14][15][16][17], the multiple-model adaptive control approaches have been used to handle the actuator failures uncertainties in control systems and the control schemes have 686 C. TAN, G. TAO AND R. QI been developed in the continuous-time system frameworks. For many applications, discrete-time system frameworks have their unique advantages, such as simpler for real-time implementation and less sensitive to noise and environmental variations.…”

Section: Introductionmentioning

confidence: 99%

A discrete‐time indirect adaptive multiple‐model actuator failure compensation scheme

Tan

Tao

2014

Adaptive Control & Signal

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A new discrete-time actuator failure compensation control scheme is developed, using a multiple-model adaptive control approach which has the capacity to achieve faster and more accurate compensation of failure uncertainties. An individual adaptive system, for each possible failure pattern in a failure pattern set of interest for compensation, is designed using an indirect model reference adaptive control scheme for actuator failure compensation. A multiple-model control switching mechanism for discrete-time systems is set up by finding the minimal performance index to select the most appropriate control law. The performance indices are based on the adaptive estimation errors of individual parameterized systems with actuator failures. Simulation results from an aircraft flight control system example are presented to show the desired closed-loop system stability and tracking performance despite the presence of uncertain actuator failures.

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“…They may degrade system performance, render instability of the closed-loop system, or even worse, lead to catastrophic accidents. To increase system reliability and security, a bank of fault tolerant control (FTC) schemes, which compensate for the actuator failures and maintain the performance of the closed-loop system, have been proposed for deterministic systems, for instance in Boskovic, Jackson, Mehra, and Nguyen (2009), Corradini and Orlando (2007), Jiang (1994) and Zhang, Parisini, and Polycarpou (2004). Recently, adaptive FTC strategy has received much attention for its capability to deal with system uncertainties as well as ✩ The work was supported by the National Natural Science Foundation of China under grants 61174079, 61034006 and 61203068.…”

Section: Introductionmentioning

confidence: 99%