Guidance control for spinning or rolling vehicle
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
F42B-010/64
F42B-010/26
출원번호
US-0226749
(2011-09-07)
등록번호
US-8410412
(2013-04-02)
발명자
/ 주소
Geswender, Chris E.
Alejandro, Stevie
Vesty, Paul
출원인 / 주소
Raytheon Company
대리인 / 주소
Renner, Otto, Boisselle & Sklar, LLP
인용정보
피인용 횟수 :
0인용 특허 :
7
초록▼
A projectile, air vehicle or submersible craft with a spinning or rolling fuselage, rotating on its axis, has a collar which can be positioned relative to a longitudinal axis of the projectile using aerodynamic forces. Aerodynamic surfaces, such as lift-producing surfaces, for example tails or canar
A projectile, air vehicle or submersible craft with a spinning or rolling fuselage, rotating on its axis, has a collar which can be positioned relative to a longitudinal axis of the projectile using aerodynamic forces. Aerodynamic surfaces, such as lift-producing surfaces, for example tails or canards, are coupled to the collar, and rotate with the collar. An actuator system or mechanism controls orienting of the lift-producing surfaces, such as tilting of the lift producing surfaces, to direct the collar into a desired position relative to a longitudinal axis of the projectile, and to maintain the collar in that position. With such a control the projectile is able to be steered using bank-to-turn maneuvering. The actuator system may use any of a variety of mechanisms to move the lift-producing surfaces, thereby positioning the collar.
대표청구항▼
1. A vehicle comprising: a fuselage that rotates about a longitudinal axis of the fuselage; anda collar rotatable relative to the fuselage, wherein the collar includes positionable lift-producing control surfaces that are variably positionable relative to a collar housing of the collar to produce a
1. A vehicle comprising: a fuselage that rotates about a longitudinal axis of the fuselage; anda collar rotatable relative to the fuselage, wherein the collar includes positionable lift-producing control surfaces that are variably positionable relative to a collar housing of the collar to produce a roll moment on the collar to position the collar; anda positioning mechanism—controlling position of the collar relative to the fuselage by—positioning the lift-producing control surfaces;wherein the positioning mechanism includes a swash plate that is mechanically coupled to the positionable lift-producing surfaces; andwherein positioning the swash plate positions the positionable lift-producing control surfaces. 2. The vehicle of claim 1, wherein the lift-producing control surfaces are variable-pitch control surfaces; andwherein the positioning mechanism varies pitch of the variable-pitch control surfaces to produce aerodynamic forces to position the collar. 3. The vehicle of claim 1, wherein the collar is part of a fusewell guidance device that is mechanically coupled to the fuselage. 4. The vehicle of claim 3, wherein the fusewell guidance device includes a fuse for detonating the vehicle. 5. The vehicle of claim 1, further comprising a motor that is mechanically coupled to the swash plate, to position the swash plate. 6. The vehicle of claim 5, wherein the positioning mechanism further includes a gear train that mechanically couples to a shaft of the motor. 7. The vehicle of claim 6, wherein a pinion of the gear train meshes with teeth on a telescope that is fixedly coupled to the swash plate; andwherein the telescope has followers that engage grooves in a cam base, such that rotation of the pinion rotates the telescope, causing motion of the telescope and the swash plate in a longitudinal direction. 8. The vehicle of claim 5, wherein the motor is a battery-driven electric motor driven by a battery that has a capacity of from 30 to 200 milliamp-hours. 9. The vehicle of claim 1, further comprising a position-determining apparatus for determining position of the collar relative to the fuselage. 10. The vehicle of claim 9, wherein the position-determining apparatus includes: an optical encoder wheel having openings therein;one or more optical transmitters; andone or more optical receivers;wherein the optical encoder wheel is located between the one or more optical transmitters and the one or more optical receivers;wherein the optical encoder wheel rotates relative to the one or more optical transmitters and the one or more optical receivers; andwherein optical signals received at the one or more optical receivers indicate passage of the openings past the one or more optical receivers. 11. The vehicle of claim 10, wherein the one or more optical transmitters includes a pair of optical transmitters;wherein the one or more optical receivers includes a pair of optical receivers;wherein the openings include a reference opening that has different characteristics from the other openings; andwherein which of the optical receivers first detects the reference opening is used to determine a rotation direction of the collar relative to the fuselage. 12. The vehicle of claim 1, wherein the collar also includes fixed-pitch lift-producing control surfaces. 13. The vehicle of claim 12, wherein the fixed-pitch control surfaces are diametrically opposed to one another; andwherein the positionable control surfaces are diametrically opposed to one another. 14. The vehicle of claim 1, wherein the vehicle is an air vehicle. 15. The vehicle of claim 1, wherein the vehicle is an unpowered projectile. 16. A method of guiding a vehicle, the method comprising: positioning a collar of the vehicle relative to a spinning fuselage of the vehicle, wherein the positioning of the collar is accomplished by selectively controlling positionable lift-producing control surfaces of the collar to produce a roll moment on the collar, with the positioning including using a swash plate that is mechanically coupled to the lift-producing control surfaces; andsteering the vehicle using lift from the collar. 17. The method of claim 16, wherein the positionable lift-producing control surfaces are variable-pitch control surfaces; andwherein the positioning the control surfaces includes changing pitch of the variable-pitch control surfaces. 18. The method of claim 17, wherein the changing the pitch includes changing the pitch by moving the swash plate; andwherein the moving the swash plate is accomplished by a battery-powered electric motor. 19. The method of claim 18, wherein the moving the swash plate includes transmitting torque from the motor through a gear train that is mechanically coupled to both the motor and the swash plate. 20. A vehicle comprising: a fuselage that rotates about a longitudinal axis of the fuselage; anda color rotatable relative to the fuselage, wherein the collar includes: diametrically-opposed positionable lift-producing control surfaces that are variably positionable, and are mechanically coupled with one another such that varying the position of the lift-producing control surfaces provides a net roll moment on the collar; and;diametrically-opposed fixed-pitch control surfaces that provide lift in the same direction, such that fixed-pitch control surfaces provide lift for steering and substantially no net roll moment on the collar; anda positioning mechanism controlling position of the collar relative to the fuselage by positioning the positionable lift-producing control surfaces.
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이 특허에 인용된 특허 (7)
Sebestyen George (Weston MA) Sinclair Ronald R. (Moultonboro NH) Smith John A. (Bedford MA) Sands Timothy B. (Acton MA) Nussdorfer Theodore J. (Lexington MA), Canard control assembly for a projectile.
Seidel Wolfgang,DEX ; Guischard Frank,DEX, Method for autonomous guidance of a spin-stabilized artillery projectile and autonomously guided artillery projectile for realizing this method.
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