Fault diagnosing and tolerance control method for aircraft three-dimensional movement

A technology of three-dimensional movement and fault diagnosis, which is applied in the direction of electrical testing/monitoring, etc., and can solve problems such as detachment of fault-tolerant control schemes, failure to consider aerodynamic characteristics, and difficulty in application
CN103149931AActive Publication Date: 2013-06-12XIAN FEISIDA AUTOMATION ENG
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
XIAN FEISIDA AUTOMATION ENG
Publication Date
2013-06-12

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Abstract

The invention provides a fault diagnosing and tolerance control method for aircraft three-dimensional movement. The method comprises the following steps of according to a model and a state combination index discriminant when an aircraft has no fault, carrying out the fault diagnosing; and when the aircraft has a fault, firstly, classifying the fault, analyzing the influence of the whole-aircraft parameters and the flight dynamic properties according to the determined fault type, and remodeling an abrupt-change system after the fault occurs, so as to obtain a new model description when the aircraft has the fault. The design method of a tolerance controller is characterized in that the output of a fault-free model can meet the requirements of military standards by the designed control amount; and when the aircraft has the fault, the new model output is stable by the control input which is formed by the control amount and the non-artificial additional control amount caused by the aircraft fault.
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Description

technical field

[0001] The invention relates to an aircraft fault diagnosis and fault-tolerant control design method, in particular to an aircraft three-dimensional motion fault diagnosis and fault-tolerant control method. Background technique

[0002] Military aircraft is an important combat weapon, and civil aircraft is an important means of transportation. It plays an increasingly important role in national defense and people's daily life and work. The research on fault diagnosis of aircraft systems has become more and more important. More and more people pay more attention to it; fault diagnosis is extremely important for systems with high safety requirements, detecting system faults in time can make the self-repairing system reconstruct the control law in time, which can avoid system collapse and the resulting material losses and casualties.

[0003] The fault detection and diagnosis technology dominated by analytic redundancy was first developed in the United States in...

Claims

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