IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
UP-0586210
(2005-01-06)
|
등록번호 |
US-7642926
(2010-02-11)
|
우선권정보 |
IT-MI2004A0023(2004-01-13) |
국제출원번호 |
PCT/EP2005/000113
(2005-01-06)
|
§371/§102 date |
20060713
(20060713)
|
국제공개번호 |
WO05/068774
(2005-07-28)
|
발명자
/ 주소 |
- Liberale, Carlo
- Imperiali, Fabio
|
출원인 / 주소 |
- Cameron International Corporation
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
3 인용 특허 :
6 |
초록
▼
Electronic control system for a submarine actuator, said actuator comprising a container body, from which a drive shaft projects that is suitable for inserting in a seat of said submarine device. The system comprises an electronic control board for at least one electric motor arranged inside said co
Electronic control system for a submarine actuator, said actuator comprising a container body, from which a drive shaft projects that is suitable for inserting in a seat of said submarine device. The system comprises an electronic control board for at least one electric motor arranged inside said container body suitable for moving said drive shaft.
대표청구항
▼
The invention claimed is: 1. An electronic control system for a submarine actuator, the actuator comprising a container body from which a drive shaft projects that is suitable for inserting in a seat of the submarine device, the system comprises an electronic control board for at least one electric
The invention claimed is: 1. An electronic control system for a submarine actuator, the actuator comprising a container body from which a drive shaft projects that is suitable for inserting in a seat of the submarine device, the system comprises an electronic control board for at least one electric motor, arranged inside the container body suitable for moving the drive shaft, the electronic control board being suitable for receiving an electrical control signal for the actuator, generated by a remote control station, characterized in that the actuator comprises two electric motors associated with the drive shaft and the electronic control board is suitable for controlling each motor independently from the other, wherein the electronic control board comprises a pilot circuit, for the at least one motor, a power supply circuit and a programmable logic unit, wherein the electronic control board comprises a first retroaction circuit of the current absorbed by the motor between the programmable logic unit and the pilot circuit. 2. The system of claim 1, comprising a position transducer for detecting the position of such a drive shaft electrically connected with the programmable logic unit. 3. The system of claim 1, wherein the electronic control board comprises a second pilot circuit of the position signal of the drive shaft between a position transducer and the programmable logic unit. 4. The system of claim 3, wherein the electronic control board is suitable for processing the signals coming from the position transducer from a control input and from the pilot circuit, in order to generate an activation signal of the at least one electric motor. 5. The system of claim 4, wherein the processing comprises calculating a speed value and direction for the rotation of the motor, starting from a position value of the drive shaft to be reached and from the current position of the shaft detected by the position transducer, and sending a corresponding signal to the pilot circuit of the motor. 6. The system of claim 1, wherein the electronic control board comprises a filtering block of the control signal that compares the value of the signal received with an average of a predetermined number of previous control signals. 7. The system of claim 2, wherein the electronic control board carries out a comparison between the signal received by the pressure transducer and a predetermined number of previous memorized signals corresponding to the limit positions of the movement of the drive shaft, and, from subsequent processing through a linearization function, determines a decoded position signal. 8. The system of claim 1, wherein the electronic control board is suitable for selecting which electric motor controls the shaft and in the case of an anomaly it is able to switch from one motor to the other. 9. A system, comprising: a submersible actuator, comprising: a first electric motor; a second electric motor; and a control circuit configured to control the first and second electric motors independently from one another to actuate a submersible flow control mechanism, wherein the control circuit is responsive to a control signal from a remote control station, wherein the control circuit comprises a filtering block configured to compare a value of the control signal with an average of a predetermined number of previous control signals. 10. The system of claim 9, wherein the first and second electric motors are independently drivingly coupled to a drive shaft via a transmission. 11. The system of claim 10, wherein the transmission comprises a transmission shaft, a worm screw coupled to the transmission shaft, and a sprocket coupled to the worm screw and the drive shaft, wherein the first and second electric motors are coupled to the transmission shaft. 12. The system of claim 9, comprising a pressure balancing device coupled to the submersible actuator and configured to balance internal and external pressures. 13. The system of claim 9, comprising the submersible flow control mechanism coupled to the submersible actuator. 14. The system of claim 13, wherein the submersible flow control mechanism comprises a valve, or a pipeline, or a combination thereof. 15. The system of claim 9, comprising a positional detector configured to communicate a position signal indicative of a position of the submersible actuator to the control circuit. 16. A method, comprising: controlling a first electric motor of a submersible actuator to actuate a submersible flow control mechanism; independently controlling a second electric motor of the submersible actuator to actuate the submersible flow control mechanism; and controlling a speed value and a direction for rotation of the first or second electric motor based on a target shaft position and a current shaft position sensed by a position sensor. 17. The method of claim 16, comprising receiving an electrical control signal from a remote control station, processing the electrical control signal, and triggering at least one of the first and second electric motors to actuate the submersible flow control mechanism. 18. The method of claim 16, wherein controlling and independently controlling comprises selecting either the first electric motor or the second electric motor, and mutually exclusively triggering the selected one of the first or second electric motors to actuate the submersible control mechanism. 19. The method of claim 16, comprising opening or closing flow of a submersible pipeline via the submersible flow control mechanism.
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