On October 9, 2012, the patent “Aircraft System Modeling Error and Control Error” (US Patent No. 8,285,659 B1) was granted to three NASA Scientists belonging to the Intelligent Systems Division. The patent is for a method for modeling error-driven adaptive control of an aircraft. The method, as described in the patent abstract, is as follows: nominal aircraft plant dynamics are modeled using an original plant description in which a controller responds to a tracking error, e(k), to drive the component to a normal reference value according to an asymptote curve. Where the system sensor indicates that (1) at least one aircraft plant component is experiencing an excursion, and (2) return of this component value toward its reference value is not proceeding according to the expected controller characteristics, Neural Networks (NN) modeling of aircraft plant operation may be changed. However, if (1) is satisfied, but the error component is returning toward its reference value according to expected controller characteristics, the NN will continue to model operation of the aircraft plant according to an original description.
COLLABORATORS: John J. Burken, John T. Kaneshige, Kalmanje Krishnakumar, and Nilesh Kulkarni
Contact: Kalmanje Krishnakumar,