Method and system for controlling sets of collinear control moment gyroscopes with offset determination without attitude trajectory of spacecraft
US7693619B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 30, 2005 |
| Grant date | Apr 6, 2010 |
| Priority date | — |
| Expiry date | Jun 6, 2027 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB64G1/244
- WIPO fieldTransport
- WIPO sectorMechanical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.