The paper “Control Allocation to Recover from Pilot-Induced Oscillations” (CAPIO) has been published in the July-August 2011 issue of the AIAA Journal of Guidance, Control, and Dynamics. The Cruise-Efficient, Short Takeoff and Landing team’s paper explains the working principles of control allocation techniques that can be used to help pilots recover from pilot-induced oscillations. The paper can be found under the following citation:
Yildiray Yildiz, Ilya Kolmanovsky, “Stability Properties and Cross-Coupling Performance of the Control Allocation Scheme CAPIO,” AIAA Journal of Guidance, Control, and Dynamics, vol. 34, no. 4, pp. 1190-1196, July-August 2011.
BACKGROUND: Due to their slow airspeed, short takeoff and landing aircraft are prone to actuator-rate saturation and pilot-induced oscillations (PIOs). Control Allocation to recover from Pilot Induced Oscillations (CAPIO), developed by Dr. Yildiray Yildiz and Dr. Ilya Kolmanovsky, is a technology that eliminates the time delay introduced to flight control systems due to actuator-rate saturation. This results in recovery from PIOs and prevention of performance degradation. The main idea behind CAPIO is the synchronization of many signals simultaneously using control allocation. CAPIO has been pilot-tested at the Vertical Motion Simulator (VMS) at NASA Ames in June 2011 with successful results.
NASA PROGRAM FUNDING: The UARC contract between NASA and UCSC
TEAM AND COLLABORATORS: Diana Acosta, Jonathan Barlow, Susan Frost, Gordon Hardy (SAIC), Ilya Kolmanovsky (U of M, Ann Arbor), Gregory Larchev, Emily Lewis (SAIC), and Yildiray Yildiz
Contact: Yildiray Yildiz