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SPACE PATENTS BY
Aerospace Assignees
Aerospace Inventors
Time Lines

Sliding integral proportional (SIP) controller for aircraft skid control

Invented by: Duk-Hyun Park
Burbank, CA

Robert D. Cook
Valencia, CA

Originally Assigned to: Hydro-Aire, Inc.
Burbank, CA
[Now assigned to . . .]

Issued:2006-04-25
Filed:2005-05-04
Application No:11122412
Examined by:Louis-Jacques; Jacques H.

The sliding, integral, and proportional controller for providing aircraft antiskid braking control includes a reference velocity subsystem, a velocity error ratio subsystem, and a main controller subsystem generating a control command output signal indicative of a command braking pressure. The main controller subsystem includes a one dimensional sliding mode controller subsystem to determine an estimated net wheel torque signal, an adaptive threshold subsystem for generating an adaptive threshold based upon the modified slip ratio signal and a clock signal, integral gain subsystems, a proportional controller subsystem, and a pressure limiter. A method for determining braking efficiency of an aircraft braking system independent of the specific conditions is also provided.

[pdf] U.S. Pat. No. 7,035,725

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This information is part of a study by Oasis Global, Inc. of all space inventions filed at the United States Patent and Trademark Office, and is provided for informational purposes only. It is not an endorsement of any particular assignee, inventor or invention. Although Peter A. Koziol represents inventors and assignees of space inventions he does not represent all of the inventors and assignees listed. The prosecuting attorney agent or firm for each patent is identified by the United States Patent and Trademark Office in the patent specfication, which can be viewed by clicking on the patent image or downloading the patent document. For more information regarding Mr. Koziol's background and experience, or to learn more about space inventions, please contact Mr. Koziol.

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