IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0992668
(2009-05-15)
|
등록번호 |
US-8418955
(2013-04-16)
|
우선권정보 |
DE-10 2008 023 628 (2008-05-15) |
국제출원번호 |
PCT/EP2009/003509
(2009-05-15)
|
§371/§102 date |
20101206
(20101206)
|
국제공개번호 |
WO2009/138251
(2009-11-19)
|
발명자
/ 주소 |
- Recksiek, Martin
- Epple, Thomas
|
출원인 / 주소 |
|
대리인 / 주소 |
Dernier, Esq., Matthew B.
|
인용정보 |
피인용 횟수 :
1 인용 특허 :
7 |
초록
▼
An actuation system includes: two hydraulic actuators, each being coupled to a load-bearing structural component and to an elevator, and displaceable relative to the load-bearing structural component for the operation of the elevator; a first control valve device to control the first actuator; a sec
An actuation system includes: two hydraulic actuators, each being coupled to a load-bearing structural component and to an elevator, and displaceable relative to the load-bearing structural component for the operation of the elevator; a first control valve device to control the first actuator; a second control valve device to control the second actuator; a control and monitoring unit that determines and transmits appropriate command signals to the control valve devices to execute appropriate control movements for the operation of the actuators; a locking device coupled to the first actuator to secure the first actuator a locked state, which is hydraulically connected with the first hydraulic system and the second hydraulic system via an hydraulic OR-circuit, where in normal operation the locking mechanism is in its unlocked state, and in the event of a failure of both hydraulic systems the locking mechanism secures the first actuator.
대표청구항
▼
1. An actuation system for a hydraulically operable aircraft elevator, comprising: two actuators, supplied from at least one hydraulic supply system, of which each is coupled to a load-bearing structural component, and to an elevator displaceable relative to the load-bearing structural component, fo
1. An actuation system for a hydraulically operable aircraft elevator, comprising: two actuators, supplied from at least one hydraulic supply system, of which each is coupled to a load-bearing structural component, and to an elevator displaceable relative to the load-bearing structural component, for the operation of the elevator,a first control valve device, hydraulically connected to the first actuator to control the latter, and a second control valve device, hydraulically connected to the second actuator to control the latter, which devices are respectively supplied from an hydraulic system,a control and monitoring unit functionally connected with the control valve devices, which determines appropriate command signals for the control valve devices, and transmits the signals to the latter to execute appropriate control movements for the operation of the actuators, anda locking device coupled to the first actuator with a locking mechanism to secure an extended position of a pushrod of the first actuator in its locked state, which is hydraulically connected with the first hydraulic system and with the second hydraulic system via an hydraulic OR-circuit, such that in normal operation of at least one of the hydraulic systems, the locking mechanism is in its unlocked state, and such that in the event of the failure of both hydraulic systems the locking mechanism under a minimum pressure secures the extended position of the pushrod of the first actuator. 2. An actuation system for a hydraulically operable elevator in accordance with claim 1, wherein: the actuation system furthermore includes: state sensors functionally connected with the control and monitoring unit to determine a displacement state of structural joints connecting the actuators to the elevator, or of regions that are located at the structural joints,the locking device coupled to the first actuator furthermore includes a lock activation device, which is functionally connected with the control and monitoring unit and which has a lock activation device, which upon the receipt of an activation signal activates the locking mechanism, andthe control and monitoring unit has a reconfiguration function, which on the basis of the detection of a fault state in the actuation system, transmits an activation signal to the lock activation device to secure the extended position of the pushrod of the first actuator if the displacement states registered on both structural joints deviate by a predetermined measure from respective REQUIRED-commands of the control and monitoring unit. 3. The actuation system for a hydraulically operable elevator in accordance with claim 2, wherein the control and monitoring unit includes a reconfiguration function for the detection of a fault state in the actuation system, with which REQUIRED-commands of the control and monitoring unit are compared with the displacement states registered by the state sensors on both structural joints of the actuators, and which transmits an activation signal to the lock activation device to secure the extended position of the pushrod of the first actuator, if the displacement states registered on both structural joints deviate by a predetermined measure from the respective REQUIRED-commands of the control and monitoring unit. 4. The actuation system for a hydraulically operable elevator in accordance with claim 2, wherein the control and monitoring unit, to secure the extended position of the pushrod of the first actuator, transmits the activation signal to the first control valve device, which transmits an activation signal to the lock activation device. 5. The actuation system for a hydraulically operable elevator in accordance with claim 2, wherein, in the case in which the displacement state registered at one of the two structural joints deviates by a predetermined measure from the respective REQUIRED-command of the control and monitoring unit for the respectively associated control valve device, the control and monitoring unit switches the respectively associated control valve device to through flow, so that the respectively associated actuator is carried along with the other actuator in each case. 6. The actuation system for a hydraulically operable elevator in accordance with claim 2, wherein the state sensors, to determine the displacement state of the structural joints of the actuators, are respectively arranged on the actuators and register an extended position of the pushrods. 7. The actuation system for a hydraulically operable elevator in accordance with claim 2, wherein the state sensors, to determine the displacement state of the actuators are respectively arranged on the structural joints of the actuators and register an extended position of their regions connecting to the elevator. 8. The actuation system for a hydraulically operable elevator in accordance with claim 6, wherein the state sensors, to determine the displacement state of the structural joints of the actuators in addition register the actuation velocity and/or the actuation acceleration of the pushrods. 9. The actuation system for a hydraulically operable elevator in accordance with claim 2, wherein: each of the control valve devices is respectively connected to an hydraulic supply system, andin the event that a fault state has been associated with one of the hydraulic supply systems, the control and monitoring unit switches the respectively associated control valve device to through flow, so that the respectively associated actuator is carried along with the respectively other actuator. 10. The actuation system for a hydraulically operable elevator in accordance with claim 9, wherein, in the event that a fault state has been associated with both of the hydraulic supply systems, the control and monitoring unit transmits an activation signal to the lock activation device. 11. An actuation system for a hydraulically operable aircraft elevator, comprising: two actuators, of which each is coupled to a load-bearing structural component, and to an elevator, displaceable relative to the load-bearing structural component, for the operation of the elevator,a first control valve device, hydraulically connected to the first actuator for the control of the latter, which is supplied from a first hydraulic system, and a second control valve device, hydraulically connected to the second actuator for the control of the latter, which is supplied from a second hydraulic system, anda control and monitoring unit functionally connected with the control valve devices, which determines appropriate command signals for the control valve devices, and can transmit these signals to the latter for the execution of appropriate control movements for the operation of the actuators, wherein in normal operation the control and monitoring unit for the actuation of the actuators and thus of the elevator in the respectively current time interval only controls the first of the two control valve devices and switches the respectively other of the control devices to through flow,wherein the control and monitoring unit has a reconfiguration function, which controls the second of the two control valve devices and switches the first of the control valve devices to through flow, if the control and monitoring unit assigns a fault state to the first control valve device and/or the first actuator and/or the first hydraulic system. 12. The actuation system for a hydraulically operable elevator in accordance with claim 11, wherein a locking device is provided, coupled to the first actuator with a locking mechanism to secure the extended position of a pushrod of the first actuator in its locked state, which locking device is hydraulically connected with the first hydraulic system and with the second hydraulic system via an hydraulic OR-circuit, such that in normal operation of at least one of the hydraulic systems the locking mechanism is in its unlocked state, and in the event of a failure of both hydraulic systems the locking mechanism under a minimum pressure secures the extended position of the pushrod of the first actuator. 13. The actuation system for a hydraulically operable elevator in accordance with claim 11, wherein: the control and monitoring unit is functionally connected with state sensors to determine a displacement state of structural joints connecting the actuators to the elevator, or of regions that are located at the structural joints,the locking device includes a lock activation device, which is functionally connected with the control and monitoring unit, and which upon the receipt of an activation signal activates the locking mechanism, andthe control and monitoring unit includes a reconfiguration function, which on the basis of the detection of a fault state in the actuation system transmits an activation signal to the lock activation device to secure the extended position of the pushrod of the respectively active actuator, if the displacement states registered on both structural joints deviate by a predetermined measure from respective REQUIRED-commands of the control and monitoring unit.
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