IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0030219
(2008-02-13)
|
등록번호 |
US-8175758
(2012-05-08)
|
우선권정보 |
FR-07 01128 (2007-02-16) |
발명자
/ 주소 |
|
출원인 / 주소 |
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
4 인용 특허 :
4 |
초록
▼
The present invention relates to a method and to a device for controlling and adjusting the ground clearance (h) of an aircraft (1) provided with at least one undercarriage (30), said undercarriage (30) being provided with a damper-actuator (2) for performing a damping function and a function of ret
The present invention relates to a method and to a device for controlling and adjusting the ground clearance (h) of an aircraft (1) provided with at least one undercarriage (30), said undercarriage (30) being provided with a damper-actuator (2) for performing a damping function and a function of retracting said undercarriage (30). The method is remarkable in that control means (10) automatically activate adjustment means (11, 12) for adjusting the length of said damper-actuator (2) so as to maintain said ground clearance (h) at a predetermined value.
대표청구항
▼
1. A method of controlling and adjusting the ground clearance (h) of an aircraft (1) provided with at least one undercarriage (30), said undercarriage (30) being provided with a damper-actuator (2) for performing a damping function and a function of retracting said undercarriage (30), wherein when t
1. A method of controlling and adjusting the ground clearance (h) of an aircraft (1) provided with at least one undercarriage (30), said undercarriage (30) being provided with a damper-actuator (2) for performing a damping function and a function of retracting said undercarriage (30), wherein when the aircraft is on the ground, control means (10) automatically activate adjustment means (11, 12) for continuously adjusting the length of said damper-actuator (2) in order to maintain said ground clearance (h) at a predetermined value, said control means also setting limits on said predetermined value for the ground clearance (h), said predetermined value being specified to the control means (10) via an interface (13, 13′). 2. A method according to claim 1, wherein for said control means (10) including a minimum safety value for ground clearance, if said predetermined value is less than said minimum safety value, then the control means (10) considers that said predetermined value is equal to said minimum safety value. 3. A method according to claim 1, wherein for said control means (10) including a maximum safety value for ground clearance, if said predetermined value is greater than said maximum safety value, then the control means (10) considers that said predetermined value is equal to said maximum safety value. 4. A method according to claim 1, wherein for a sensor (14) delivering a signal to the control means (10) representative of the current value of the ground clearance (h) of the aircraft (1), said control means (10) activate said adjustment means (11, 12) in order to adjust the length of said damper-actuator (2) so that said current value of the ground clearance (h) reaches said predetermined value. 5. A method according to claim 4, wherein said interface (13′) is independent of said control means (10). 6. A method according to claim 1, wherein for a plurality of sensors (14) each sending a signal to the control means (10) representative of a local current value for the ground clearance (h) corresponding to a zone of the aircraft (1), said control means (10) perform processing on said signal to determine an overall current value for ground clearance and then activate said adjustment means (11, 12) to adjust the length of said damper-actuator (2) so that said overall current value of the ground clearance (h) reaches said predetermined value. 7. A device for controlling and adjusting the ground clearance (h) of an aircraft (1) provided with at least one undercarriage (30), said undercarriage (30) being provided with a damper-actuator (2) for performing a damping function and a function of retracting said undercarriage, the device being provided with adjustment means (11, 12) for adjusting the length of said damper-actuator (2) and with control means (10), said control means (10) continuously and automatically adjusting said length of said damper-actuator (2) via said adjustment means (11, 12) so as to maintain said ground clearance (h) at a predetermined value, said control means further applying limits to said predetermined value. 8. A device according to claim 7, including at least one sensor (14) for measuring said ground clearance (h). 9. A device according to claim 7, wherein said adjustment means (11, 12) comprises at least one solenoid valve for varying the quantity of a hydraulic liquid present in an outlet chamber (2′) of said damper-actuator (2). 10. A device according to claim 7, wherein said control means (10) includes an interface (13) enabling an operator to specify said predetermined value. 11. A device according to claim 10, wherein said interface (13) is integrated in said control means (10). 12. A device according to claim 10, wherein for said interface (13) being remote, said interface (13) is connected to said control means (10) via a wired connection. 13. A device according to claim 10, wherein for said interface (13) being remote, said interface (13) is connected to said control means (10) via a wireless connection.
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