Methods and systems for imposing a momentum boundary while reorienting an agile vehicle with control moment gyroscopes
US8014911B2 · kind B2 · utility
3Cited by
13References
21Claims
0Family size
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Key dates
| Filing date | Nov 3, 2009 |
| Grant date | Sep 6, 2011 |
| Priority date | — |
| Expiry date | Nov 6, 2029 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB64G1/245
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
Methods and systems are provided for reorienting an agile vehicle, such as a satellite or spacecraft, using a control moment gyroscope (CMG) array. The CMG array comprises a plurality of CMGs onboard the agile vehicle. A method comprises obtaining an input torque command for reorienting the vehicle using the CMG array and, when the angular momentum of the CMG array violates or is approaching a momentum boundary criterion, decreasing the input torque command in the kinetic momentum direction, resulting in a modified torque command, and operating the CMG array using the modified torque command.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.