초록 ▼

The invention relates to a method for actuating an adjusting drive for adjusting an elevator (12) and an adjusting drive for adjusting a moveable tail (23) provided with the steps: Generation of an elevator command to actuate the elevator adjusting drive; Calculating a moveable tail command (IHC1) f

The invention relates to a method for actuating an adjusting drive for adjusting an elevator (12) and an adjusting drive for adjusting a moveable tail (23) provided with the steps: Generation of an elevator command to actuate the elevator adjusting drive; Calculating a moveable tail command (IHC1) for actuating the moveable tail adjusting drive in such a manner that the moveable tail (23) is tracked to the elevator input signal (10); Depending on the adjusting states of the elevator (12) and/or the moveable tail (23) or flight states, retaining the adjusting state of the moveable tail adjusting drive or actuating the moveable tail adjusting drive with a moveable tail command (IHCMD) for changing the adjusting state of the moveable tail (23), during actuation of the elevator adjusting drive with an elevator command for changing the adjusting state of the elevator (23) and in the event of a deviation from the calculated moveable tail command (IHC1) and the commanded moveable tail command (IHCMD), acting upon the elevator command to compensate for retention of the adjusting state of the moveable tail adjusting drive and a control device for carrying out the method.

대표청구항 ▼

1. A method for actuating an elevator adjusting drive for adjusting an elevator and a moveable tail adjusting drive for adjusting a moveable tail comprising steps of: generating an elevator command to actuate the elevator adjusting drive;calculating a calculated moveable tail command for actuating t

1. A method for actuating an elevator adjusting drive for adjusting an elevator and a moveable tail adjusting drive for adjusting a moveable tail comprising steps of: generating an elevator command to actuate the elevator adjusting drive;calculating a calculated moveable tail command for actuating the moveable tail adjusting drive in such a manner that the moveable tail is tracked to a calculated elevator signal input;depending on the adjusting states of the elevator and/or the moveable tail or flight states, with a commanded moveable tail command retaining the adjusting state of the moveable tail adjusting drive oractuating the moveable tail adjusting drive such that the adjusting state of the moveable tail is changed,during actuation of the elevator adjusting drive with the elevator command for changing the adjusting state of the elevator and in the event of a deviation of the calculated moveable tail command from the commanded moveable tail command, achieving neutral aerodynamic effectiveness by acting upon the elevator command to compensate for the retention of the adjusting state of the moveable tail adjusting drive orfor the actuation of the moveable tail adjusting drive. 2. The method according to claim 1, wherein the retention of the adjusting state of the moveable tail adjusting drive or the actuation of the moveable tail adjusting drive with the commanded moveable tail command is made depending on the adjusting states of the elevator on the basis of a range for the commanded moveable tail command, the limits whereof are related to adjusting states of the elevator. 3. The method according to claim 2, wherein the limits of the range for the commanded moveable tail command are made depending on the calculated moveable tail command. 4. The method according to claim 2, wherein the limits of the range for the commanded moveable tail command are formed from a first threshold value and a second threshold value, wherein in one time interval, an actuation of the moveable tail-adjusting drive with the commanded moveable tail command for changing the adjusting state of the moveable tail is only made when the absolute magnitude of the difference between the calculated moveable tail command and the commanded moveable tail command relevant to this time interval or an actual adjusting state of the moveable tail exceeds the first threshold value, andwherein the moveable tail adjusting drive is actuated with a moveable tail command in such a manner that the adjusting state of the moveable tail does not change if a value derived from the calculated moveable tail command and/or the commanded moveable tail command relevant to this time interval or the actual adjusting state of the moveable tail is below the second threshold value. 5. The method according to claim 4, wherein the first and/or second threshold value is a constant value which corresponds to a difference angle. 6. The method according to claim 4, wherein the first and/or second threshold value is a value derived from a selected flight parameter and/or the adjusting state of the elevator occurring in the time interval and/or the adjusting state of the moveable tail. 7. The method according to claim 4, wherein the moveable tail-adjusting drive is actuated with the moveable tail command in such a manner that the adjusting state of the moveable tail does not change if the absolute magnitude of the difference between the calculated moveable tail command and the commanded moveable tail command relevant to this time interval or the actual adjusting state of the moveable tail is below the second threshold value. 8. The method according to claim 4, wherein the value compared with the second threshold value is a distance between an calculated adjusting position of the moveable tail and an instantaneous adjusting position of the moveable tail or a value derived from this distance so that the second threshold value is fallen below when the calculated moveable tail position falls below an angular distance to the commanded moveable tail position. 9. The method according to claim 4, wherein the value compared with the second threshold value is a regulating speed of the moveable tail and/or the elevator or a value derived from the regulating speed so that the second threshold value is fallen below when the moveable tail falls below a predetermined regulating speed. 10. The method according to claim 1, wherein acting upon the elevator command to compensate for a deviation of the calculated moveable tail command from the commanded moveable tail command comprises multiplying the elevator command by a factor which is determined from the control surface efficiencies of the elevator and the moveable tail. 11. The method according to claim 10, further comprising determining a ratio of adjusting surface efficiencies of the elevator and the moveable tail when taking into account the control surface efficiencies. 12. The method according to claim 11, wherein the control surface efficiencies are set as constant values. 13. The method according to claim 11, wherein at least one of the control surface efficiencies is calculated taking into account one or more of the following parameters: flight speed, Mach number, adjusting state of the moveable tail and/or adjusting state of the elevator, aerodynamic angle of attack of the tail, position of a slat and flap of the aircraft high lift system and/or pitching position of the aircraft. 14. A control device for actuating an elevator adjusting drive for adjusting an elevator and a moveable tail adjusting drive for adjusting a moveable tail based on a first elevator control variable, comprising: a device for calculation of calculated moveable tail commands having a function for calculating a calculated moveable tail command for actuating the moveable tail adjusting drive in such a manner that the moveable tail is tracked to an elevator input signal;a hysteresis circuit connected to the device for calculation of calculated moveable tail commands, connected to the moveable tail adjusting drive, and having a function which, depending on calculated adjusting states of the elevator and/or the moveable tail or flight states, actuates the moveable tail adjusting drive with a commanded moveable tail command to adjust the moveable tail for retaining the adjusting state of the moveable tail adjusting drive orto actuate the moveable tail adjusting drive for changing the adjusting state of the moveable tail,a device for generating elevator pre-commands connected to the hysteresis circuit, having a device for determining pre-command variables for generating an elevator pre-command variable and having an adder for acting upon the first elevator control variable with the elevator pre-command variable to form an elevator command to actuate the elevator adjusting drive,wherein the hysteresis circuit has a function for forming a deviation between the calculated moveable tail command and the commanded moveable tail command, andwherein the device for determining pre-command variables is set up to receive deviation values and to determine the elevator pre-command variable from the function for forming a deviation. 15. The control device according to claim 14, wherein the retention of the adjusting state of the moveable tail adjusting drive or the actuation of the moveable tail adjusting drive with the calculated moveable tail command is made depending on the adjusting states of the elevator on the basis of a range for the moveable tail command, the limits whereof are related to adjusting states of the elevator or are made depending on the calculated moveable tail command. 16. The control device according to claim 15, wherein in the hysteresis circuit the limits of the range for the movable tail command are formed from a first threshold value and a second threshold value, wherein in one time interval, an actuation of the moveable tail adjusting drive with an moveable tail command for changing the adjusting state of the moveable tail is only made when the absolute magnitude of the difference between the calculated moveable tail command and the commanded moveable tail command) relevant to this time interval or an actual adjusting state of the moveable tail exceeds the first threshold value, andwherein the moveable tail adjusting drive is actuated with the moveable tail command in such a manner that the adjusting state of the moveable tail does not change if a value derived from the calculated moveable tail command and/or the commanded moveable tail command relevant to this time interval or the actual adjusting state of the moveable tail is below the second threshold value. 17. The control device according to claim 16, wherein the first and/or second threshold value is a constant value which corresponds to a difference angle or the first and/or second threshold value is a value derived from a selected flight parameter and/or the adjusting state of the elevator occurring in the time interval and/or the adjusting state of the moveable tail. 18. The control device according to claim 16, wherein the moveable tail adjusting drive is actuated with the calculated moveable tail command in such a manner that the adjusting state of the moveable tail does not change if the absolute magnitude of the difference between the calculated moveable tail command and the commanded moveable tail command relevant to this time interval or an actual adjusting state of the moveable tail is below the second threshold value. 19. The control device according to claim 16, wherein the value compared with the second threshold value is a distance between the calculated adjusting position of the moveable tail and the instantaneous adjusting position of the moveable tail or a value derived from this distance so that the second threshold value is fallen below when the calculated moveable tail position falls below an angular distance to the commanded moveable tail position. 20. The control device according to claim 16, wherein the value compared with the second threshold value is a regulating speed of the moveable tail and/or the elevator or a value derived from the regulating speed of the moveable tail and/or the elevator so that the threshold value is fallen below when the moveable tail falls below a predetermined regulating speed. 21. The control device according to claim 14, wherein determining the elevator pre-command variable from the function for forming a deviation between the calculated moveable tail command and the commanded moveable tail command comprises multiplying the deviation by a factor which is determined from the control surface efficiencies of the elevator and the moveable tail. 22. The control device according to claim 21, wherein a ratio of the adjusting surface efficiencies of the elevator and the moveable tail is determined when taking into account the control surface efficiencies. 23. The control device according to claim 22, wherein the control surface efficiencies are set as constant values. 24. The control device according to claim 23, wherein at least one of the control surface efficiencies is calculated taking into account one or more of the following parameters: flight speed, Mach number, adjusting state of the moveable tail and/or adjusting state of the elevator, aerodynamic angle of attack of the tail, position of a slat and flap of the aircraft high lift system and/or pitching position of the aircraft.