Hydro-mechanical device with preloaded flow regulating assembly
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
F15B-015/20
B62K-021/08
F16F-009/14
출원번호
US-0254864
(2014-04-16)
등록번호
US-9863450
(2018-01-09)
발명자
/ 주소
Koschel, Martin
Fleming, Ryan D.
Wright, Andrew M.
March, Paul D.
Dermawan, Ryan P.
출원인 / 주소
ROCKWELL COLLINS, INC.
대리인 / 주소
Ginsberg, Lawrence N.
인용정보
피인용 횟수 :
0인용 특허 :
12
초록▼
A hydro-mechanical device for providing tactile feel curve shaping, including: a housing; a fluid displacing element; and, a preloaded flow regulating assembly operatively connected to the housing. The housing has a working fluid chamber formed therein, the working fluid chamber containing working f
A hydro-mechanical device for providing tactile feel curve shaping, including: a housing; a fluid displacing element; and, a preloaded flow regulating assembly operatively connected to the housing. The housing has a working fluid chamber formed therein, the working fluid chamber containing working fluid. The fluid displacing element is positioned within the working fluid chamber. The fluid displacing element divides the working fluid chamber into at least two cavities upon which fluid is transferred upon movement of the fluid displacing element. The flow of the working fluid is controlled through the preloaded flow regulating assembly in accordance with a custom force profile combining a controlled velocity dependent force component and a controlled resisting force component which opposes an applied force at a controlled maximum threshold.
대표청구항▼
1. A hydro-mechanical device for providing tactile feel curve shaping, comprising: a) a housing having a working fluid chamber formed therein, said working fluid chamber containing working fluid;b) a fluid displacing element positioned within the working fluid chamber, said fluid displacing element
1. A hydro-mechanical device for providing tactile feel curve shaping, comprising: a) a housing having a working fluid chamber formed therein, said working fluid chamber containing working fluid;b) a fluid displacing element positioned within the working fluid chamber, said fluid displacing element dividing the working fluid chamber into at least two cavities upon which fluid is transferred upon movement of said fluid displacing element; and,c) a preloaded flow regulating assembly operatively connected to said housing, wherein said preloaded flow regulating assembly comprises a preloaded element comprising a spring that prevents flow of fluid between the at least two cavities until a predetermined pressure is achieved, and affects flow of fluid once said predetermined pressure has been exceeded in cooperation with a flow restriction element comprising a plunger attached to an end of the spring that opposes the flow of the working fluid, said plunger being located in an orifice of a working fluid conduit connected to said housing,wherein the flow of said working fluid is controlled through said preloaded flow regulating assembly in accordance with a custom force profile combining a controlled velocity dependent force component and a controlled resisting force component, which opposes an applied force at a controlled maximum threshold;wherein said controlled velocity dependent force component is controlled by one or more of said preloaded elements and one or more flow restriction elements which oppose the flow of the working fluid, thereby forming a pressure differential across the flow regulating assembly, wherein a cooperation of each orifice and each plunger achieves desired device performance as a result of the variable relative position between the orifice and the plunger as regulated by the preloaded element; and,wherein said controlled resisting force component is controlled by said one or more preloaded elements and said one or more flow restriction elements which prevent the flow of fluid between the two cavities until a predetermined pressure at the controlled maximum threshold is achieved,wherein said custom force profile is defined by an F-v orthogonal coordinate system, where F is the ordinate force axis and v is the abscissa velocity axis, said custom force profile comprising an “a” segment, a “b” segment, a “c” segment, and a “d” segment, wherein said “a” segment and said “c” segment each have one endpoint at an origin of the coordinate system and extend along the ordinate to another endpoint, said “a” segment extending to FT, which is said controlled maximum threshold, said “c” segment extending to −FT, which is said controlled maximum threshold in the opposite direction, wherein said “b” segment extends from said FT endpoint of said “a” segment with a continuous, positive slope and said “d” segment extends from said −FT endpoint of said “c” segment with a continuous, negative slope. 2. The hydro-mechanical device of claim 1, wherein said controlled resisting force component comprises a constant resisting force component, said constant resisting force component being at said controlled maximum threshold. 3. The hydro-mechanical device of claim 1, wherein said controlled resisting force component comprises a constant resisting force component, said constant resisting force component being at said controlled maximum threshold which has two or more multi-stable defined values depending on a portion of an operating stroke used. 4. The hydro-mechanical device of claim 1, wherein said controlled resisting force component comprises a constant resisting force component, said constant resisting force component being at said controlled maximum threshold which has two defined values depending on a direction of an operating stroke used. 5. The hydro-mechanical device of claim 1, wherein said controlled resisting force component comprises a constant resisting force component, said constant resisting force component being at said controlled maximum threshold which has two or more multi-stable defined values depending on an input speed used. 6. The hydro-mechanical device of claim 1, wherein said hydro-mechanical device is incorporated in an aircraft's pilot control system to provide functions of speed-dependent feel force and controlled resisting force, to pilot inceptors, obviating the need for multiple devices to accomplish friction and damping functions. 7. The hydro-mechanical device of claim 1, wherein said working fluid has a viscosity that can be altered in a controlled manner. 8. The hydro-mechanical device of claim 1, wherein said working fluid has a variable viscosity. 9. The hydro-mechanical device of claim 1, further comprising a centering mechanism. 10. The hydro-mechanical device of claim 1, wherein said fluid displacing element comprises a piston. 11. The hydro-mechanical device of claim 1, wherein said fluid displacing element comprises a vane. 12. A control system, comprising: a) a hydro-mechanical device for providing tactile feel curve shaping, comprising: i) a housing having a working fluid chamber formed therein, said working fluid chamber containing working fluid;ii) a fluid displacing element positioned within the working fluid chamber, said fluid displacing element dividing the working fluid chamber into at least two cavities upon which fluid is transferred upon movement of said fluid displacing element; and,iii) a preloaded flow regulating assembly operatively connected to said housing, wherein said preloaded flow regulating assembly comprises a preloaded element comprising a spring that prevents flow of fluid between the at least two cavities until a predetermined pressure is achieved, and affects flow of fluid once said predetermined pressure has been exceeded in cooperation with a flow restriction element comprising a plunger attached to an end of the spring that opposes the flow of the working fluid, said plunger being located in an orifice of a working fluid conduit connected to said housing,wherein the flow of said working fluid is controlled through said preloaded flow regulating assembly in accordance with a custom force profile combining a controlled velocity dependent force component and a controlled resisting force component, which opposes an applied force at a controlled maximum threshold;wherein said controlled velocity dependent force component is controlled by one or more of said preloaded elements and one or more flow restriction elements which oppose the flow of the working fluid, thereby forming a pressure differential across the flow regulating assembly, wherein a cooperation of each orifice and each plunger achieves desired device performance as a result of the variable relative position between the orifice and the plunger as regulated by the preloaded element; and,wherein said controlled resisting force component is controlled by said one or more preloaded elements and said one or more flow restriction elements which prevent the flow of fluid between the two cavities until a predetermined pressure at the controlled maximum threshold is achieved,wherein said custom force profile is defined by an F-v orthogonal coordinate system, where F is the ordinate force axis and v is the abscissa velocity axis, said custom force profile comprising an “a” segment, a “b” segment, a “c” segment, and a “d” segment, wherein said “a” segment and said “c” segment each have one endpoint at an origin of the coordinate system and extend along the ordinate, said “a” segment extending to FT, which is said controlled maximum threshold, said “c” segment extending to −FT, which is said controlled maximum threshold in the opposite direction, wherein said “b” segment extends from said FT endpoint of said “a” segment with a continuous, positive slope and said “d” segment extends from said −FT endpoint of said “c” segment with a continuous, negative slope; and,b) an inceptor operatively connected to said hydro-mechanical device. 13. The control system of claim 12, further comprising a centering mechanism. 14. The control system of claim 12, wherein said hydro-mechanical device is positioned within a vehicle. 15. The control system of claim 14, wherein said vehicle comprises an aircraft. 16. The control system of claim 14, further comprising a mechanism which returns the inceptor to a pre-defined position at a pre-defined position-force relationship. 17. The control system of claim 14, wherein said inceptor comprises a pilot inceptor. 18. A method for damping, comprising the steps of: a) providing a housing having a working fluid chamber formed therein, said working fluid chamber containing working fluid;b) providing a fluid displacing element positioned within the working fluid chamber, said fluid displacing element dividing the working fluid chamber into at least two cavities upon which fluid is transferred upon movement of said fluid displacing element;c) providing a preloaded flow regulating assembly operatively connected to the housing and fluid displacing element; and,d) controlling the working fluid between said housing, said fluid displacing element, and said preloaded flow regulating assembly to achieve performance characteristics including a force profile combining a controlled velocity dependent force component and a controlled resisting force component which opposes applied force at a controlled maximum threshold, wherein said preloaded flow regulating assembly comprises a preloaded element comprising a spring that prevents flow of fluid between the at least two cavities until a predetermined pressure is achieved, and affects flow of fluid once said predetermined pressure has been exceeded in cooperation with a flow restriction element comprising a plunger attached to an end of the spring that opposes the flow of the working fluid, said plunger being located in an orifice of a working fluid conduit connected to said housing; wherein said controlled velocity dependent force component is controlled by one or more of said preloaded elements and one or more flow restriction elements which oppose the flow of the working fluid, thereby forming a pressure differential across the flow regulating assembly, wherein a cooperation of each orifice and each plunger achieves desired device performance as a result of the variable relative position between the orifice and the plunger as regulated by the preloaded element; and,wherein said controlled resisting force component is controlled by said one or more preloaded elements and said one or more flow restriction elements which prevent the flow of fluid between the two cavities until a predetermined pressure at the controlled maximum threshold is achieved,wherein said custom force profile is defined by an F-v orthogonal coordinate system, where F is the ordinate force axis and v is the abscissa velocity axis, said custom force profile comprising an “a” segment, a “b” segment, a “c” segment, and a “d” segment, wherein said “a” segment and said “c” segment each have one endpoint at an origin of the coordinate system and extend along the ordinate, said “a” segment extending to FT, which is said controlled maximum threshold, said “c” segment extending to −FT, which is said controlled maximum threshold in the opposite direction, wherein said “b” segment extends from said FT endpoint of said “a” segment with a continuous, positive slope and said “d” segment extends from said −FT endpoint of said “c” segment with a continuous, negative slope.
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