This invention discloses a method for activating a drive system for control surfaces or working systems of an aircraft, wherein the speed of a drive unit of the drive system is regulated, and after a starting operation the maximum driving power available during the further operation for speed regula
This invention discloses a method for activating a drive system for control surfaces or working systems of an aircraft, wherein the speed of a drive unit of the drive system is regulated, and after a starting operation the maximum driving power available during the further operation for speed regulation of the drive unit is reduced. Likewise, this invention comprises a drive system for control surfaces or working systems of an aircraft, comprising a drive unit with speed regulation and a corresponding control.
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1. A method for activating a drive system for control surfaces (7) or working systems of an aircraft, comprising the steps of regulating speed of a drive unit of the drive system to provide maximum driving power available during starting operation and transition from static to sliding friction at st
1. A method for activating a drive system for control surfaces (7) or working systems of an aircraft, comprising the steps of regulating speed of a drive unit of the drive system to provide maximum driving power available during starting operation and transition from static to sliding friction at start of movement,after the starting operation is completed, reducing the maximum driving power available during the further operation for speed regulation of the drive unit, andafter maximum driving power has been reduced, separately further reducing the driving power should a subsequent overload or lamming be detected. 2. The method according to claim 1, wherein the full driving power is available during the starting operation. 3. The method according to claim 1, wherein after the starting operation the maximum available driving power is reduced to a value which is just sufficient for the normal movement of the system after the starting operation under maximum operating loads. 4. The method according to claim 1, wherein the determination as to whether the starting operation is terminated is effected with reference to the rotary position and/or the speed of the drive. 5. The method in particular according to claim 1, wherein a case of overload is detected by comparing a desired speed and a speed determined by means of a speed sensor. 6. The method according to claim 5, wherein in a case of overload the driving power is reduced or a braking operation is initiated. 7. The method according to claim 5, wherein the speed of the drive unit is regulated by means of a first speed sensor, and a further speed sensor is disposed at a point of the transmission between the drive unit and the control surfaces or working systems and serves the detection of a case of overload. 8. A drive system for control surfaces (7) or working systems of an aircraft, comprising a drive unit (1) in turn provided with speed regulation and a control, and the control including means for providing maximum driving power available during a starting operation and including a power reduction function which, after the starting operation and transition from static to sliding friction at start of movement is completed, reduces the maximum driving power available during the further operation for speed regulation of the drive unit (1) and, in event of detection of an overload or jamming after starting operation is completed and maximum driving power reduced, further reduces the driving power. 9. The drive system according to claim 8, wherein the control is configured such that it automatically performs the method for activating a drive system for control surfaces or working systems of an aircraft, wherein the speed of a drive unit of the drive system is regulated, and after a starting operation the maximum driving power available during the further operation for speed regulation of the drive unit is reduced. 10. The drive system according to claim 8, wherein the drive unit is a fast-controllable drive unit. 11. The drive system according to claim 10, wherein the control includes an electronic sensor-based system for detecting a case of overload. 12. The drive system in particular according to claim 11, comprising a speed sensor for determining the speed of the drive unit and/or of the transmission, wherein a case of overload is detected by comparing a desired speed and a speed determined by means of the speed sensor. 13. The drive system according to claim 12, wherein the drive unit includes a speed sensor, by which the speed of the drive unit is regulated, and a further speed sensor is disposed at a point of the transmission and serves the detection of a case of overload. 14. The drive system in particular according to claim 10, comprising a speed sensor for determining the speed of the drive unit and/or of the transmission, wherein a case of overload is detected by comparing a desired speed and a speed determined by means of the speed sensor. 15. The drive system according to claim 10, wherein the fast-controllable drive unit is a hydraulic motor with adjustable absorption volume or a brushless electric motor. 16. The drive system according to claim 8, wherein the control includes an electronic sensor-based system for detecting a case of overload. 17. The drive system according to claim 16, wherein the drive unit includes a speed sensor, by which the speed of the drive unit is regulated, and a further speed sensor is disposed at a point of the transmission and serves the detection of a case of overload. 18. The drive system according to claim 17, wherein the further speed sensor is disposed on a drive train transmission or a branch transmission of the transmission. 19. The drive system in particular according to claim 16, comprising a speed sensor for determining the speed of the drive unit and/or of the transmission, wherein a case of overload is detected by comparing a desired speed and a speed determined by means of the speed sensor. 20. The drive system in particular according to claim 8, comprisicng a speed sensor for determining the speed of the drive unit and/or of the transmission, wherein a case of overload is detected by comparing a desired speed and a speed determined by means of the speed sensor.
Lindstrom Jeffrey V. ; Reed R. David ; Platin Bradley E. ; Beyer Kevin W. ; Reusch David C., Method and apparatus for detecting skew and asymmetry of an airplane flap.
Fleddermann, Andreas; Hartwig, Wolfgang; Darbois, Alexandre; Richter, Martin, Method and device for providing automatic load alleviation to a high lift surface system, in particular to a landing flap system, of an aircraft.
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