Data processing: vehicles – navigation – and relative location – Vehicle control – guidance – operation – or indication – Aeronautical vehicle
Patent
1998-10-05
2000-07-04
Chin, Gary
Data processing: vehicles, navigation, and relative location
Vehicle control, guidance, operation, or indication
Aeronautical vehicle
701 29, 701 34, 244194, G06F16500
Patent
active
060851279
ABSTRACT:
Method and apparatus for a fault tolerant automatic control system for a dynamic device having a sensor and a predetermined control algorithm include structure and steps for receiving a status signal from the sensor. Structure and steps are provided for transforming the sensor status signal and a predetermined reference signal into a linear time invariant coordinate system, generating a sensor estimate in the linear time invariant coordinate system based on the transformed sensor status signal and the transformed reference signal, transforming the sensor estimate into a physical coordinate system, detecting an error in the sensor status signal based on a comparison of the transformed sensor estimate and the sensor status signal, and reconfiguring the predetermined control algorithm based on the detected error. Preferably, the apparatus and method are implemented in an aircraft flight control system capable of detecting an aircraft sensor fault and reconfiguring the flight control program such that flight control surface actuators are commanded by ignoring or mitigating the failed sensor.
REFERENCES:
patent: 4441151 (1984-04-01), Hayashibe
patent: 4644538 (1987-02-01), Cooper et al.
patent: 4649484 (1987-03-01), Herzog et al.
patent: 5182703 (1993-01-01), Yamamoto
patent: 5274554 (1993-12-01), Takats et al.
patent: 5282129 (1994-01-01), Losic et al.
patent: 5289377 (1994-02-01), Yokote et al.
patent: 5297052 (1994-03-01), McIntyre et al.
patent: 5493497 (1996-02-01), Buus
patent: 5615119 (1997-03-01), Vos
patent: 5819188 (1998-10-01), Vos
Textbook entitled "Aircraft Dynamics And Automatic Control", chapter 4 entitled "Elementary Theory of Nonlinear Feedback For Single-Input Single-Output Systems".
"Application Of Nonlinear Transformations To Automatic Flight Control" by G. Meyer, R. Su, and L.R. Hunt; "Global Transformations Of Nonlinear Systems" by L.R. Hunt, et al.
Phd Thesis of David Voss entitled Nonlinear Control Of An Autonomous Unicycle Robot: Practical Issues.
A Geometric Approach To The Synthesis Of Failure Detection Filters, by Mohammad-Ali Massoumnia.
"Detecting Changes In Signals And Systems--A Survey" by Michele Basseville.
Textbook entitled "Nonlinear Dynamical Control Systems", chapter 5 entitled "State Space Transformation And Feedback".
Aurora Flight Sciences Corporation
Chin Gary
LandOfFree
Fault tolerant automatic control system utilizing analytic redun does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Fault tolerant automatic control system utilizing analytic redun, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Fault tolerant automatic control system utilizing analytic redun will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1494818