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:
Aug. 29, 2017
Filed:
Apr. 27, 2016
Applicant:
The Charles Stark Draper Laboratory, Inc., Cambridge, MA (US);
Inventors:
Sungyung Lim, Acton, MA (US);
Seamus Tuohy, Newton, MA (US);
Daniel Dionne, Nashua, NH (US);
Laurent Duchesne, Brookline, MA (US);
Louis Breger, Boston, MA (US);
Assignee:
The Charles Stark Draper Laboratory, Inc., Cambridge, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B64G 1/28 (2006.01); B64G 1/24 (2006.01); G05D 1/08 (2006.01);
U.S. Cl.
CPC ...
B64G 1/286 (2013.01); B64G 1/242 (2013.01); B64G 1/283 (2013.01); G05D 1/0883 (2013.01); B64G 2001/245 (2013.01);
Abstract
A new approach for rapid slew and settle of small satellites is based on four single degree-of-freedom control moment gyroscopes with variable speed flywheels (or reaction wheels) in a pyramid configuration, combined with path and endpoint constraint time-optimal control. The path and endpoint constrained time-optimal control can be augmented with momentum management without the use of additional actuators.