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Manual control of unstable systemsUnder certain operational regimes and failure modes, air and ground vehicles can present the human operator with a dynamically unstable or divergent control task. Research conducted over the last two decades has explored the ability of the human operator to control unstable systems under a variety of circumstances. Past research is reviewed and human operator control capabilities are summarized. A current example of automobile directional control under rear brake lockup conditions is also reviewed. A control system model analysis of the driver's steering control task is summarized, based on a generic driver/vehicle model presented at last year's Annual Manual. Results from closed course braking tests are presented that confirm the difficulty the average driver has in controlling the unstable directional dynamics arising from rear wheel lockup.
Document ID
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Allen, R. W.
(Systems Technology, Inc. Hawthorne, CA, United States)
Hogue, J. R.
(Systems Technology, Inc. Hawthorne, CA, United States)
Parseghian, Z.
(Systems Technology, Inc. Hawthorne, CA, United States)
Date Acquired
August 12, 2013
Publication Date
May 1, 1986
Publication Information
Publication: NASA. Ames Research Center, 21st Annual Conference on Manual Control
Subject Category
Man/System Technology And Life Support
Accession Number
Distribution Limits
Work of the US Gov. Public Use Permitted.
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