Invention Grant
- Patent Title: Algorithm for simultaneous attitude maneuver and momentum dumping
- Patent Title (中): 同时姿态机动和动量倾倒的算法
-
Application No.: US12645296Application Date: 2009-12-22
-
Publication No.: US08352101B2Publication Date: 2013-01-08
- Inventor: Ronald Shawn Thomas , Richard I. Milford
- Applicant: Ronald Shawn Thomas , Richard I. Milford
- Applicant Address: US IL Chicago
- Assignee: The Boeing Company
- Current Assignee: The Boeing Company
- Current Assignee Address: US IL Chicago
- Agency: Vista IP Law Group, LLP
- Agent Cynthia A. Dixon
- Main IPC: B64G1/24
- IPC: B64G1/24 ; G05D1/00

Abstract:
A system and method are disclosed for simultaneous attitude maneuver and momentum dumping. The attitude maneuver is performed using nominal wheel control to minimize propellant usage, while applying a momentum management command to the thruster control loop in order for the wheels to accomplish the desired spacecraft maneuver while simultaneously being reset to a de-saturated target state. The system and method involve a wheel system comprised of reaction wheels and/or a control moment gyroscope (CMG), at least one thruster, and control logic that is in communication with the wheel system and thruster(s). If a spacecraft maneuver is in progress, the control logic biases an error input signal to a thruster control loop to track the wheel maneuver to prevent unnecessary propellant consumption. The control logic is further operable to output thruster torque commands and wheel torque commands that accomplish the maneuver while achieving the desired final momentum target.
Public/Granted literature
- US20110153123A1 ALGORITHM FOR SIMULTANEOUS ATTITUDE MANEUVER AND MOMENTUM DUMPING Public/Granted day:2011-06-23
Information query