IPC분류정보
국가/구분 |
United States(US) Patent
등록
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국제특허분류(IPC7판) |
|
출원번호 |
US-0087488
(2002-03-01)
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발명자
/ 주소 |
- McBride, Mark W.
- Archibald, Frank S.
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출원인 / 주소 |
- The Penn State Research Foundation
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대리인 / 주소 |
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인용정보 |
피인용 횟수 :
12 인용 특허 :
4 |
초록
▼
An underwater or submersible vehicle including an elongated body having a substantially ellipsoidal forward section, a substantially cylindrical mid-section, and a tapered aft section having an internal vectored thrust propulsion system for propelling and maneuvering the vehicle through a fluid oper
An underwater or submersible vehicle including an elongated body having a substantially ellipsoidal forward section, a substantially cylindrical mid-section, and a tapered aft section having an internal vectored thrust propulsion system for propelling and maneuvering the vehicle through a fluid operating environment. At least two discharge nozzles are located along a horizontal beam on opposite sides of a longitudinal centerline in the aft section for providing differential and/or vectored thrust for propelling and maneuvering the vehicle through the fluid operating environment. The vehicle can also includes at least two backing nozzles capable of one or more of differential and vectored thrust for providing a backing and/or athwartships thrust to slow, stop, reverse, and maneuver the vehicle. The vehicle can also includes secondary thrust-driven propulsion system located in the forward section for providing a secondary differential and/or vectored thrust. In addition, the vehicle can include a stern configuration including a wedge-shaped tapered stern section defining a space that provides an increased volume over conventional conical shaped tapered stern section for wet or dry storage. The vehicle can also include a distributed power generation, distribution, and control system, a modular design, and redundancy for flexibility in the arrangement of machinery and equipment and improved survivability.
대표청구항
▼
An underwater or submersible vehicle including an elongated body having a substantially ellipsoidal forward section, a substantially cylindrical mid-section, and a tapered aft section having an internal vectored thrust propulsion system for propelling and maneuvering the vehicle through a fluid oper
An underwater or submersible vehicle including an elongated body having a substantially ellipsoidal forward section, a substantially cylindrical mid-section, and a tapered aft section having an internal vectored thrust propulsion system for propelling and maneuvering the vehicle through a fluid operating environment. At least two discharge nozzles are located along a horizontal beam on opposite sides of a longitudinal centerline in the aft section for providing differential and/or vectored thrust for propelling and maneuvering the vehicle through the fluid operating environment. The vehicle can also includes at least two backing nozzles capable of one or more of differential and vectored thrust for providing a backing and/or athwartships thrust to slow, stop, reverse, and maneuver the vehicle. The vehicle can also includes secondary thrust-driven propulsion system located in the forward section for providing a secondary differential and/or vectored thrust. In addition, the vehicle can include a stern configuration including a wedge-shaped tapered stern section defining a space that provides an increased volume over conventional conical shaped tapered stern section for wet or dry storage. The vehicle can also include a distributed power generation, distribution, and control system, a modular design, and redundancy for flexibility in the arrangement of machinery and equipment and improved survivability. torque applied about said longitudinal axis, each of said first and second zones having axially-spaced end portions defining magnetic poles of opposite polarity between which the external magnetic flux is emanated to have an essentially axially-directed component at a location intermediate the end portions, said first and second zones being magnetised with magnetisations of opposite polarity, a sensor arrangement comprising a first sensor located adjacent said first zone at a location intermediate the end portions of the first zone, a second sensor located adjacent said second zone at a location intermediate the end portions of the second zone, said first and second sensors being responsive to the axially-directed component of magnetic flux emanated by said first and second zones respectively, and signal processing means to which said first and second sensors are connected to cancel an external axially-directed magnetic field common to said first and second sensors and to develop an output signal representing the torque about said longitudinal axis. 2. The torque sensor arrangement of claim 1, wherein said shaft had third and fourth magnetised zones spaced along said longitudinal axis with said first and second zones located therebetween, each of said third and fourth magnetised zones being a respective integral portion of the shaft. 3. The torque sensor arrangement of claim 1, wherein said shaft has third and fourth magnetised zones spaced along said longitudinal axis with said first and second zones therebetween, each of said third and fourth zones being a respective integral portion of the shaft, and said sensor arrangement is responsive only to magnetic flux emanated by said first and second zones. 4. The torque sensor arrangement of claim 1 in which each of said first and second zones is circumferentially magnetised. 5. The torque sensor arrangement of claim 3 in which each of said first to fourth zones is circumferentially magnetised and adjacent zones have opposite polarities of magnetisation. 6. A force sensor arrangement comprising: an elongate member operably mounted to have a force applied at one end portion thereto acting to produce a bending moment in the elongate member about a longitudinal axis, said elongate member having a transducer element comprising first and second zones, each of which is a respective integral portion of the elongate member, each of said first and second zone having axially-spaced end portions defining magnetic poles of opposite polarity between which the external magnetic flux is emanated to have an essentially axially-directed component at a location intermediate the end portions; said first and second zones being disposed along said longitudinal axis and each being magnetised to emanate an external magnetic flux that is a function of a bending moment about said longitudinal axis, said first and second zones being magnetised with magnetisations of opposite polarity, a sensor arrangement comprising a first sensor located adjacent said first zone at a location intermediate the end portions of the first zone, a second sensor located adjacent said second zone at a location intermediate the end portions of the second zone, said first and second sensors being responsive to the axially-directed component of magnetic flux emanated by said first and second zones respectively, and signal processing means to which said first and second sensors are connected to cancel an external axially-directed magnetic field common to said first and second sensors to develop an output signal representing the torque about said longitudinal axis. 7. The force sensor arrangement of claim 6, wherein said elongate member has third and fourth guard zones spaced along said longitudinal axis with said first and second zones located therebetween, each of said third and fourth magnetised zones being a respective integral portion of the elongate member. 8. The force sensor arrangement of cl aim 6, wherein said elongate member has third and fourth magnetised zones spaced along said longitudinal axis with said first and second zones therebetween, each of said third and fourth zones being a respective integral portion of the shaft, and said sensor arrangement is responsive only to magnetic flux emanated by said first and second zones. 9. The force sensor arrangement of claim 6 in which each of said first and second zones is circumferentially magnetised. 10. The force sensor arrangement of claim 8 in which each of said first to fourth zones is circumferentially magnetised and adjacent zones have opposite polarities of magnetisation. 11. A torque sensor arrangement comprising: a shaft operably mounted to have a torque applied at one end portion thereof acting to rotate the shaft about a longitudinal axis, said shaft having a transducer element comprising an integral portion of the shaft that is magnetised to emanate an external magnetic flux that is a function of a torque applied about said longitudinal axis, said transducer element having axially-spaced end portions defining magnetic poles of opposite polarity between which the external flux is emanated to have an essentially axially-directed component at a location intermediate the end portions, a sensor arrangement comprising first and second sensors located adjacent said transducer element intermediate the end portions thereof and responsive to the axially-directed component of magnetic flux emanated thereby, said first and second sensors being disposed adjacent radially opposite sides of the elongate member with respect to said longitudinal axis, and signal processing means to which said first and second sensors are connected in an additive manner to develop an output signal representing the torque about said longitudinal axis. 12. A torque sensor arrangement as claimed in claim 11, wherein said shaft has first and second magnetised guard zones spaced along said longitudinal axis, each of said first and second magnetised guard zones being a respective integral portion of the shaft, said transducer element being located between said first and second magnetised guard zones. 13. A torque sensor arrangement as claimed in claim 11 in which said integral portion is circumferentially magnetised. 14. A torque sensor arrangement as claimed in claim 12 in which each integral portion is circumferentially magnetised and adjacent integral portion have opposite polarities of magnetisation. 15. A force sensor arrangement comprising: an elongated member operably mounted to have a force applied thereto acting to produce a bending moment in the elongate member about a longitudinal axis, said elongate member having a transducer element comprising an integral portion of the elongate member that is magnetised to emanate an external magnetic flux that is a function of a bending moment about said longitudinal axis, said transducer element having axially-spaced end portions defining magnetic poles of opposite polarity between which the external flux is emanated to have an essentially axially-directed component at a location intermediate the end portions; a sensor arrangement comprising first and second sensors located adjacent said transducer element intermediate the end portions thereof and responsive to the axially-directed component of magnetic flux emanated thereby, said first and second sensors being disposed adjacent radially opposite sides of the elongate member with respect to said longitudinal axis, and signal processing means to which said first and second sensors are connected in an additive manner to develop an output signal representing the bending moment about said longitudinal axis. 16. A force sensor arrangement as claimed in claim 15, wherein said elongate member has first and second magnetised guard zones spaced along said longitudinal axis, each of said first and second magnetised guard zones being a respective integral portion of the elongate member, said transducer element being located between said first and second magnetised guard zones. 17. A force sensor arrangement as claimed in claim 15 in which said transducer element is circumferentially magnetised. 18. A force sensor arrangement as claimed in claim 16 in which each integral portion is circumferentially magnetised and adjacent integral portions have opposite polarities of magnetisation. ator; electric current supplying means for supplying an electric current to the actuator based on the target electric current value determined by the target electric current value determining means; maximum electric current value detecting means for detecting a maximum electric current value actually supplied to the actuator regardless of the target electric current value determined by the target electric current value determining means; and maximum electric current value setting means for setting the maximum electric current value based on the maximum electric current value detected by the maximum electric current value detecting means. 2. The control device for an actuator applied in a transmission according to claim 1, wherein the target electric current value determining means for determining the target electric current value to be supplied to the actuator determines the target electric current value having a constant sweep speed. 3. The control device for an actuator applied in a transmission according to claim 1, wherein the transmission comprises a synchromesh-type transmission including an input shaft, an idle gear, an output shaft, and a synchromesh mechanism including a sleeve, the idle gear transmitting rotation of the input shaft and the sleeve transmitting rotation to the output shaft, with the synchromesh mechanism performing a predetermined speed-change by synchronizing the sleeve with the idle gear in response to movement of the sleeve, and the actuator including a shift actuator for moving the sleeve. 4. The control device for an actuator applied in a transmission according to claim 1, wherein: the target electric current value determining means for determining the target electric current value includes a determining unit that determines the target electric current value to be supplied to the actuator; the electric current supplying means for supplying the electric current to the actuator includes an electric current supplying unit that supplies the electric current to the actuator based on the target electric current value; the maximum electric current value detecting means for detecting the maximum electric current value actually supplied to the actuator includes a detecting unit that detects the maximum electric current value actually supplied to the actuator regardless of the target electric current value; and the maximum electric value setting means for setting the maximum electric current value includes a setting unit that sets the maximum electric current value based on the maximum electric current value detected by the maximum electric current value detecting means. 5. The control device for an actuator applied in a transmission according to claim 4, wherein the determining unit that determines the target electric current value to be supplied to the actuator determines the target electric current value having a constant sweep speed. 6. The control device for an actuator applied in a transmission according to claim 1, including a malfunction indicating signal outputting means for outputting a malfunction indicating signal when the maximum electric current value set by the maximum electric current value setting means deviates from a predetermined allowable range. 7. The control device for an actuator applied in a transmission according to claim 6, including mode changing means for changing a control mode to a fail-safe mode when the malfunction indicating signal is outputted by the malfunction indicating signal outputting means. 8. The control device for an actuator applied in a transmission according to claim 6, wherein the malfunction indicating signal outputting means for outputting the malfunction indicating signal includes an output unit for outputting the malfunction indicating signal when the maximum electric current value set by the maximum electric current value setting means deviates from the predetermined allowable range. 9. The control device for an actuator applied in a transmis
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