System and method for vehicle attitude control
First Claim
1. A dual stage vehicle attitude control system comprising:
- a first attitude control module having at least two momentum wheels arranged to provide zero momentum vehicle attitude control, each momentum wheel comprises a limited travel two axis gimbal that pivots the momentum wheel along two of three axes of the vehicle;
a second attitude control module having reaction wheels arranged in a pyramid configuration to provide vehicle attitude control along at least one control axis that is common with a control axis of the at least two momentum wheels; and
a controller connected to the first attitude control module and the second attitude control module, the controller being configured to coordinate actuation of the first attitude control module and the second attitude control module to rotate the vehicle in at least one of three axes of a vehicle.
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Abstract
A dual stage vehicle attitude control system includes a first attitude control module having at least two momentum wheels arranged to provide zero momentum vehicle attitude control, each momentum wheel comprises a limited travel two axis gimbal that pivots the momentum wheel along two of the three axes of the vehicle, a second attitude control module having reaction wheels arranged in a pyramid configuration to provide vehicle attitude control along at least one control axis that is common with a control axis of the at least two momentum wheels, and a controller connected to the first attitude control module and the second attitude control module, the controller being configured to coordinate actuation of the first attitude control module and the second attitude control module to rotate the vehicle in at least one of three axes of a vehicle.
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Citations
24 Claims
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1. A dual stage vehicle attitude control system comprising:
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a first attitude control module having at least two momentum wheels arranged to provide zero momentum vehicle attitude control, each momentum wheel comprises a limited travel two axis gimbal that pivots the momentum wheel along two of three axes of the vehicle; a second attitude control module having reaction wheels arranged in a pyramid configuration to provide vehicle attitude control along at least one control axis that is common with a control axis of the at least two momentum wheels; and a controller connected to the first attitude control module and the second attitude control module, the controller being configured to coordinate actuation of the first attitude control module and the second attitude control module to rotate the vehicle in at least one of three axes of a vehicle. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method for controlling an attitude of a vehicle, the method comprising:
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controlling actuation of a first attitude control module and a second attitude control module to rotate the vehicle in at least one of three axes of the vehicle, where controlling actuation of the first attitude control module includes pivoting each momentum wheel along two of the three axes of the vehicle with a limited travel two axis gimbal; and wherein the first attitude control module is a momentum wheel module providing zero momentum vehicle attitude control at a first level of agility and the second attitude control module is a pyramidal reaction wheel module providing vehicle attitude control along at least one control axis that is common with a control axis of the momentum wheel module at a second level of agility, where the first level of agility is greater than the second level of agility. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17)
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18. A dual stage vehicle attitude control system comprising:
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a first attitude control module having at least two momentum wheels arranged to provide zero momentum vehicle attitude control, each momentum wheel comprises a limited travel two axis gimbal that pivots the momentum wheel along two of three axes of the vehicle; a second attitude control module having reaction wheels arranged in a pyramid configuration to provide vehicle attitude control along at least one control axis that is common with a control axis of the at least two momentum wheels; and a controller connected to the first attitude control module and the second attitude control module, the controller being configured to coordinate actuation of the first attitude control module and the second attitude control module to rotate the vehicle in at least one of three axes of a vehicle so the at least two momentum wheels provide zero momentum steering augmentation to the reaction wheels. - View Dependent Claims (19, 20, 21, 22, 23, 24)
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Specification