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SPACE PATENTS BY
Aerospace Assignees
Aerospace Inventors
Time Lines

Method and system for CMG array singularity avoidance

Invented by: Mason A. Peck
Scottsdale, AZ

Brian J. Hamilton
Glendale, AZ

Brian Underhill
Glendale, AZ

Originally Assigned to: Honeywell International, Inc.
Morristown, NJ
[Now assigned to . . .]

Issued:2007-07-24
Filed:2004-07-23
Application No:10897494
Examined by:Collins; Timothy D.

The present method provides a method for avoiding singularities in the movement of CMGs in an array of CMGs in a spacecraft. In a first step, a torque command representing a desired torque to produce an attitude adjustment for the spacecraft is received. Next, a range-space gimbal rate required to produce the desired torque based on the desired torque and a Jacobian matrix is calculated. Then, a null-space gimbal rate that assists in the avoidance of singularities is calculated. The total gimbal rate command is determined by summing the range-space gimbal rate and the null-space gimbal rate. Then, the total gimbal rate command is provided to the CMGs to produce the total gimbal rate.

[pdf] U.S. Pat. No. 7,246,776

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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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