IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
UP-0561161
(2006-11-17)
|
등록번호 |
US-7778735
(2010-09-06)
|
발명자
/ 주소 |
|
출원인 / 주소 |
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
2 인용 특허 :
9 |
초록
▼
Methods, environmental control systems, and computer program products are provided for controlling an internal environment of a pressurized compartment of a vehicle. In one aspect, the pressurized compartment includes first and second exit valves for selectively allowing gas to exit the pressurized
Methods, environmental control systems, and computer program products are provided for controlling an internal environment of a pressurized compartment of a vehicle. In one aspect, the pressurized compartment includes first and second exit valves for selectively allowing gas to exit the pressurized compartment. The first and second exit valves are located, respectively, in spaced apart portions of the pressurized compartment. The pressurized compartment also includes first and second systems that are located, respectively, in the spaced apart portions of the pressurized compartment. Flow rates of gases in the first and second systems are determined and at least one of the first and second exit valves is controlled in response to the flow rate determinations.
대표청구항
▼
What is claimed is: 1. An environmental control system for controlling the environment in a pressurized compartment, said environmental control system comprising: at least first and second adjustable exit valves for selectively allowing gas to exit the pressurized compartment, said first and second
What is claimed is: 1. An environmental control system for controlling the environment in a pressurized compartment, said environmental control system comprising: at least first and second adjustable exit valves for selectively allowing gas to exit the pressurized compartment, said first and second exit valves being located, respectively, in first and second portions of the pressurized compartment; and a controller for determining flow rates of gases in at least first and second systems that are located, respectively, in the first and second portions of the pressurized compartment, wherein the flow rates in the first and second systems are variable, said controller also being configured to control at least one of said first and second exit valves at least partly in response to flow rate determinations of gases in at least the first and second systems such that a quantity of gas exiting the pressurized compartment through the first and second exit valves has a direct relationship to the flow rates of the first and second systems, respectively. 2. An environmental control system according to claim 1, wherein said controller includes sensors configured to measure flow rates in the first and second systems. 3. An environmental control system according to claim 1, wherein said controller is configured to control said first and second exit valves to maintain a predetermined pressure inside the pressurized compartment and to avoid movement of gases from said first and second systems to, respectively, said second and first exit valves. 4. An environmental control system according to claim 1, further comprising at least one pressure sensor in communication with said controller, and wherein said controller is further configured to control at least one of said first and second exit valves at least partly in response to measurements of said pressure sensor. 5. An environmental control system according to claim 4, wherein said pressure sensor is configured to measure at least one of a pressure inside the pressurized compartment or a pressure outside the pressurized compartment. 6. An environmental control system according to claim 4, wherein said pressure sensor is configured to measure a difference between a pressure inside the pressurized compartment and a pressure outside the pressurized compartment. 7. A method for controlling an internal environment of a pressurized compartment of a vehicle, the pressurized compartment including at least first and second adjustable exit valves for selectively allowing gas to exit the pressurized compartment, the first and second exit valves being located, respectively, in spaced apart portions of the pressurized compartment, and the pressurized compartment also including at least first and second systems that are located, respectively, in the spaced apart portions of the pressurized compartment, said method comprising: determining flow rates of gases in the first and second systems, wherein the flow rates in the first and second systems are variable; and controlling at least one of the first and second exit valves at least partially in response to determining the flow rates of gases in the first and second systems such that a quantity of gas exiting the pressurized compartment through the first and second exit valves has a direct relationship to the flow rates of the first and second systems, respectively. 8. A method according to claim 7, wherein controlling at least one of the first and second exit valves includes controlling the first valve in response to determining the flow rates of gases in the first and second systems, and further comprising controlling the second valve to modulate pressure in the pressurized compartment. 9. A method according to claim 7, wherein controlling at least one of the first and second exit valves at least partially in response to determining the flow rates of gases in the first and second systems includes controlling said first and second exit valves to maintain a pressure inside the pressurized compartment that is one of greater than or equal to a predetermined pressure and to avoid movement of gases from said first and second systems to, respectively, said second and first exit valves. 10. A method according to claim 7, further comprising determining a difference in pressure between an inside of the pressurized compartment and an outside of the pressurized compartment and controlling at least one of the first and second exit valves at least partially in response to the difference in pressure. 11. A method according to claim 10, wherein determining a difference in pressure between an inside of the pressurized compartment and an outside of the pressurized compartment includes measuring at least one of a pressure inside the pressurized compartment or a pressure outside the pressurized compartment. 12. A method according to claim 10, further comprising, subsequent to controlling at least one of the first and second exit valves at least partially in response to the difference in pressure and also subsequent to controlling at least one of the first and second exit valves at least partially in response to determining the flow rates of gases in the first and second systems, determining positions of the first and second exit valves, re-determining a difference in pressure between an inside of the pressurized compartment and an outside of the pressurized compartment, and controlling at least one of the first and second exit valves at least partially in response to determining positions of the first and second exit valves and re-determining a difference in pressure between an inside of the pressurized compartment and an outside of the pressurized compartment. 13. A method according to claim 7, wherein controlling the first and second exit valves includes controlling the first and second exit valves to minimize flow through the first exit valve and to affect an ambient interior flow rate in the pressurized compartment sufficient to accommodate breathing requirements for occupants within the pressurized compartment and to entrain gases flowing from the first and second systems. 14. A method according to claim 13, wherein controlling said inflow valve and first and second exit valves includes controlling said inflow valve and first and second exit valves to cause the gases flowing in the first and second systems to exit the pressurized compartment through, respectively, the first and second exit valves, such that the gases flowing in the first and second systems are prevented from re-circulating in the pressurized compartment and flow through the first exit valve is roughly minimized. 15. A computer program product for facilitating the control of an internal environment of a pressurized compartment of a vehicle, the computer program product comprising a computer-readable storage medium having computer-readable program code portions stored therein, the computer-readable program code portions comprising: a first executable code portion for determining at least first and second flow rates of gases in at least first and second systems located in spaced apart portions of the pressurized compartment, wherein the flow rates in the first and second systems are variable; and a second executable code portion for controlling at least one of first and second exit valves respectively located in the spaced apart portions of the pressurized compartment at least partially in response to determining the flow rates of gases in the first and second systems such that a quantity of gas exiting the pressurized compartment through the first and second exit valves has a direct relationship to the flow rates of the first and second systems, respectively. 16. A computer program product according to claim 15, wherein said second executable code portion includes an executable code portion for controlling the first valve in response to determining the flow rates of gases in the first and second systems, and further comprising controlling the second valve to modulate pressure in the pressurized compartment. 17. A computer program product according to claim 15, further comprising a third executable code portion for controlling said first and second exit valves to maintain a pressure inside the pressurized compartment that is one of greater than or equal to a predetermined pressure and to avoid movement of gases from said first and second systems to, respectively, said second and first exit valves. 18. A computer program product according to claim 15, further comprising a third executable code portion for determining a difference in pressure between an inside of the pressurized compartment and an outside of the pressurized compartment and a fourth executable code portion for controlling at least one of the first and second exit valves at least partially in response to the difference in pressure. 19. A computer program product according to claim 15, wherein said second executable code portion includes an executable code portion for controlling the first and second exit valves to minimize flow through the first exit valve and to affect an ambient interior flow rate in the pressurized compartment sufficient to accommodate breathing requirements for occupants within the pressurized compartment and to entrain gases flowing from the first and second systems. 20. A computer program product according to claim 19, wherein said second executable code portion includes an executable code portion for controlling said inflow valve and first and second exit valves to cause the gases flowing in the first and second systems to exit the pressurized compartment through, respectively, the first and second exit valves, such that the gases flowing in the first and second systems are prevented from re-circulating in the pressurized compartment and flow through the first exit valve is roughly minimized. 21. An environmental control system according to claim 1 wherein the controller is configured to control the first and second exit valves such that the quantity of gas exiting the pressurized compartment through the first and second exit valves is proportional to the flow rates of the first and second systems. 22. A method according to claim 7 wherein controlling the first and second exit valves comprises controlling the first and second exit valves such that the quantity of gas exiting the pressurized compartment through the first and second exit valves is proportional to the flow rates of the first and second systems. 23. A computer program product according to claim 15 wherein the second executable code portion is configured to control the first and second exit valves such that the quantity of gas exiting the pressurized compartment through the first and second exit valves is proportional to the flow rates of the first and second systems.
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