The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 06, 2010
Filed:
Nov. 30, 2005
Michael R. Elgersma, Plymouth, MN (US);
Daniel P. Johnson, Fridley, MN (US);
Mason A. Peck, Ithaca, NY (US);
Brian K. Underhill, Glendale, AZ (US);
Gunter Stein, St. Paul, MN (US);
Blaise G. Morton, Minnetonka, MN (US);
Brian J. Hamilton, Glendale, AZ (US);
Michael R. Elgersma, Plymouth, MN (US);
Daniel P. Johnson, Fridley, MN (US);
Mason A. Peck, Ithaca, NY (US);
Brian K. Underhill, Glendale, AZ (US);
Gunter Stein, St. Paul, MN (US);
Blaise G. Morton, Minnetonka, MN (US);
Brian J. Hamilton, Glendale, AZ (US);
Honeywell International Inc., Morristown, NJ (US);
Abstract
A control system of a spacecraft for controlling two or more sets of collinear control moment gyroscopes (CMGs) comprises an attitude control system. The attitude control system is configured to receive a command to adjust an orientation of the spacecraft, determine an offset for a momentum disk for each of the two or more sets of CMGs that maximizes torque, determine a momentum needed from the two or more sets of CMGs to adjust the orientation of the spacecraft, and calculate a total torque needed by taking the derivative of the momentum. The control system further comprises a momentum actuator control processor coupled to the attitude control system, the momentum actuator control processor configured to calculate a required gimbal movement for each of the CMGs in each of the two or more sets of collinear CMGs from total torque.