NDLI: A control allocation technique to recover from pilot-induced oscillations (capio) due to actuator rate limiting

Content Provider	IEEE Xplore Digital Library
Author	Yildiz, Y. Kolmanovsky, I.V.
Copyright Year	2010
Description	Author affiliation: NASA Ames Res. Center, U. C. Santa Cruz, Moffett Field, CA, USA (Yildiz, Y.) \|\| Aerosp. Eng., Univ. of Michigan, Ann Arbor, MI, USA (Kolmanovsky, I.V.)
Abstract	This paper proposes a control allocation technique that can help pilots recover from pilot induced oscillations (PIO). When actuators are rate-saturated due to aggressive pilot commands, high gain flight control systems or some anomaly in the system, the effective delay in the control loop may increase depending on the nature of the cause. This effective delay increase manifests itself as a phase shift between the commanded and actual system signals and can instigate PIOs. The proposed control allocator reduces the effective time delay by minimizing the phase shift between the commanded and the actual attitude accelerations. Simulation results are reported, which demonstrate phase shift minimization and recovery from PIOs. Conversion of the objective function to be minimized and constraints to a form that is suitable for implementation is given.
Starting Page	516
Ending Page	523
File Size	1179460
Page Count	8
File Format	PDF
ISBN	9781424474264
ISSN	07431619
e-ISBN	9781424474271
DOI	10.1109/ACC.2010.5530869
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-06-30
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	American Automatic Control Council(AACC)
Subject Keyword	Actuators Delay effects NASA Delay systems Control systems Aircraft Aerodynamics Shape control Testing Aerospace control
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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A control allocation technique to recover from pilot-induced oscillations (capio) due to actuator rate limiting

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