CN208828122U - The inlet flap position control system of auxiliary power unit - Google Patents
The inlet flap position control system of auxiliary power unit Download PDFInfo
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- CN208828122U CN208828122U CN201821235735.2U CN201821235735U CN208828122U CN 208828122 U CN208828122 U CN 208828122U CN 201821235735 U CN201821235735 U CN 201821235735U CN 208828122 U CN208828122 U CN 208828122U
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- inlet flap
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- position control
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Abstract
A kind of inlet flap position control system (100) of auxiliary power unit can reduce the complexity of design of hardware and software, improve system reliability, and be avoided that the shortcoming of linear electric actuator itself.The inlet flap position control system (100) includes the Full Authority Digital electronic controller (200) of auxiliary power unit, it the inlet flap actuator (300) that be made of electric actuator and link mechanism (310) and is opened by the inlet flap actuator (300), the inlet flap (400) of closing, wherein, the inlet flap position control system (100) further includes the independent inlet flap controller (500) different from the Full Authority Digital electronic controller (200), the electric actuator of the inlet flap actuator (300) is revolving electric actuator.
Description
Technical field
The utility model relates to aerospace fields, more particularly, to a kind of auxiliary power unit for aircraft
The inlet flap position control system of (Auxiliary Power Unit, hereinafter simply referred to as " APU ").
Background technique
The inlet flap control system of the auxiliary power unit of aircraft is for the inlet flap of ground and aerial control APU
It opens and closes.
The inlet flap control system of traditional APU is made of APU controller and actuator.APU controller is according to APU's
Operating status, issues the instruction of door opening or closing, and actuator then presses instruction and completes operation.
Angular displacement sensor is installed on the inlet flap of APU, with Real-time Feedback dampers angular, to complete to air inlet
The closed-loop control that air door opens or closes.Inlet flap actuator is usually made of electric actuator and link mechanism, connecting rod machine
Structure drives the inlet flap of APU to move under the driving of electric actuator.Electric actuator is usually linear.
The inlet flap control system framework 10 of the APU generallyd use is as shown in Figure 1.As shown in Figure 1, APU FADEC
((the letter below of Full Authority Digital Electrical Controller (Full Authority Digital electronic controller) 20
Claim " APU FADEC 20 ") be APU controller, the inlet flap actuator 30 of APU FADEC 20 and APU hands in addition to signal
Connection, APU FADEC 20 also need to power to air inlet door actuator 30 and angular displacement sensor 50.
But the inlet flap position control system of above-mentioned traditional APU has the following deficiencies:
1) power supply of inlet flap actuator and angular displacement sensor is provided by APU FADEC, and inlet flap controls
Logical algorithm software all realize that these all increase the complexity of APU FADEC design of hardware and software in APU FADEC, drop
The low reliability of system；
2) the inlet flap position control system of traditional APU, requires angular displacement sensor, increases system cost；
3) the inlet flap position control system of traditional APU generallys use linear electric actuator, installation space
Greatly, weight is big, and the operation torque and holding torque of actuator output are unadjustable.
Therefore, the auxiliary power unit (APU) of at least one in a kind of above-mentioned shortcoming of energy improvement how is designed
Inlet flap position control system becomes as technical problem urgently to be resolved.
Utility model content
The utility model is made to solve above-mentioned technical problem, and its purpose is to provide a kind of air inlets of auxiliary power unit
Damper positions control system can reduce the complexity of design of hardware and software, improve system reliability.
The another object of the utility model is to provide a kind of inlet flap position control system of auxiliary power unit, energy
Reduce system cost.
A further object of the utility model is to provide a kind of inlet flap position control system of auxiliary power unit, energy
Avoid the shortcoming of linear electric actuator itself.
To achieve the goals above, the first aspect of the utility model provides a kind of inlet flap position of auxiliary power unit
Set control system, the inlet flap position control system include auxiliary power unit Full Authority Digital electronic controller, by
It inlet flap actuator that electric actuator and link mechanism are constituted and opened, closed by the inlet flap actuator
Inlet flap, characterized in that the inlet flap position control system further includes being different from the Full Authority Digital to be controlled electronically
The independent inlet flap controller of device, the electric actuator of the inlet flap actuator are revolving electric actuators.
It is constituted according to as described above, in the inlet flap control system of the auxiliary power unit of the utility model, due to
Using individual inlet flap controller, the design of hardware and software complexity of auxiliary power unit is reduced, interface is simplified and sets
Meter.
In addition, constituted according to as described above, in the inlet flap control system of the auxiliary power unit of the utility model,
Since the electric actuator of inlet flap actuator is revolving electric actuator, it therefore, there is no need to angular displacement sensor, just
Inlet flap position can be controlled.
The inlet flap position control system of the auxiliary power unit of the second aspect of the utility model is practical new at this
On the basis of the inlet flap position control system of the auxiliary power unit of the first aspect of type, characterized in that the air inlet wind
Door controller and the Full Authority Digital electronic controller carry out interconnection of signals, receive and are controlled electronically from the Full Authority Digital
The damper positions order of device, and damper positions state is fed back to the Full Authority Digital electronic controller.
The inlet flap position control system of the auxiliary power unit of the third aspect of the utility model is practical new at this
On the basis of the inlet flap position control system of the auxiliary power unit of the second aspect of type, characterized in that the air inlet wind
Door controller is dividually individually powered with the Full Authority Digital electronic controller, and the inlet flap actuator is by described
The power supply of inlet flap controller, and the inlet flap actuator and the inlet flap controller carry out interconnection of signals.
It is constituted according to as described above, since inlet flap controller is also dividually individually powered with APU, mention
The high reliability of system.
In addition, not needing to power on to APU when ground is safeguarded, APU can be opened either manually or by ground installation
Inlet flap.Inlet flap controller issues instruction control inlet flap actuator action.
The inlet flap position control system of the auxiliary power unit of the fourth aspect of the utility model is practical new at this
The basis of the first aspect of type inlet flap position control system of the auxiliary power unit in face either into the third aspect
On, characterized in that the output torque of the link mechanism can be adjusted.
It is constituted according to as described above, since the link mechanism of inlet flap actuator has the function of moment amplification, and the company
The dimension scale of each connecting rod in linkage is adjustable, therefore, can export different size of torque.
The inlet flap position control system of the auxiliary power unit of 5th aspect of the utility model is practical new at this
On the basis of the inlet flap position control system of the auxiliary power unit of the fourth aspect of type, characterized in that the connecting rod machine
Structure is four-bar mechanism, and the actuator drive shafts of electric rotary actuator and the first connecting rod of the link mechanism pass through spline
It connects with being able to rotate, the first connecting rod is connected with second connecting rod using joint rotation mode, and the second connecting rod and third connect
Bar is connected using joint rotation mode, and the third connecting rod is connect with the inlet flap axis of the inlet flap by square toes.
Constituted according to as described above, due to the unlatching of inlet flap, close be continuously carried out by link mechanism, and
Therefore the link mechanism (position of each connecting rod) that inlet flap actuator can be adjusted in real time can reduce to air inlet wind
The requirement of the output torque of door actuator.
The inlet flap position control system of the auxiliary power unit of 6th aspect of the utility model is practical new at this
On the basis of the inlet flap position control system of the auxiliary power unit of 5th aspect of type, characterized in that the air inlet wind
The operation torque of door actuator output is 825in-lbs, holding torque 400in-lbs.
The inlet flap position control system of the auxiliary power unit of 7th aspect of the utility model is practical new at this
On the basis of the inlet flap position control system of the auxiliary power unit of 6th aspect of type, characterized in that the connecting rod machine
The moment amplification ratio of structure is 2.5~4 times.
Detailed description of the invention
Fig. 1 is the architecture diagram of the inlet flap control system of traditional APU.
Fig. 2 is the architecture diagram of the inlet flap control system of the APU of the utility model.
Fig. 3 is the schematic diagram of the link mechanism in the inlet flap control system of the APU of the utility model.
Fig. 4 be inlet flap actuator (link mechanism) in the inlet flap control system of the APU of the utility model and
The schematic diagram of inlet flap.
Specific embodiment
Hereinafter, being carried out referring to Fig. 2~Fig. 4 to an embodiment of the inlet flap control system of the APU of the utility model
It is described in detail.
Firstly, being illustrated referring to Fig. 2 to the framework of the inlet flap control system 100 of APU.
In addition, in the following description, by being compared in conjunction with Fig. 1, further to show the APU of the utility model
The difference of inlet flap control system 100 and the inlet flap control system 10 of traditional APU.
As shown in Figure 1, the inlet flap control system 10 of traditional APU includes the inlet flap of APU FADEC 20, APU
Actuator 30, APU inlet flap 40 and be set to APU inlet flap 40 angular displacement sensor 50.
APU FADEC 20 is the controller of APU, according to the operating status of APU, is sent out to the inlet flap actuator 30 of APU
Air supply port position command.
The inlet flap actuator 30 of APU is made of linear electric actuator and link mechanism, and link mechanism is in electricity
Under the driving of dynamic actuator, the inlet flap of APU is driven to move.
Angular displacement sensor 50 is to 20 Real-time Feedback dampers angular of APU FADEC.
In other words, APU FADEC 20, the inlet flap actuator 30 of APU, the inlet flap 40 of APU and angular displacement pass
Sensor 50 constitutes a closed-loop control.
On the other hand, the inlet flap control system 100 of the APU of the utility model includes APU FADEC 200, APU
Inlet flap controller 500, the inlet flap actuator 300 of APU, APU inlet flap 400.
That is, the inlet flap control system 100 of the APU in the utility model, uses independent inlet flap controller
500, inlet flap controller 500 and APU FADEC 200 carry out interconnection of signals, and above-mentioned inlet flap controller 500 connects
The instruction that APU FADEC 200 is issued is received, and feeds back damper positions state to APU FADEC 200.
The power supply of inlet flap controller 500 and APU FADEC 200 are independent to be separated, inlet flap actuator 300 by into
Gas air damper controller 500 is powered, and inlet flap actuator 300 and inlet flap controller 500 carry out interconnection of signals.
It is constituted according to as described above, in the inlet flap control system 100 of the APU of the utility model, due to using
Individual inlet flap controller 500, reduces the design of hardware and software complexity of auxiliary power unit (APU), simplifies interface
Design.
In addition, this improves systems since inlet flap controller 500 is also dividually individually powered with APU
Reliability, wherein inlet flap actuator 300 is powered by inlet flap controller 500.
In addition, not needing to power on to APU when ground is safeguarded, APU can be opened either manually or by ground installation
Inlet flap 400.Inlet flap controller 500 issues instruction control inlet flap actuator 300 and acts.
The inlet flap actuator 300 of APU is equally made of electric actuator and link mechanism 310 (as shown in Figure 3), but
Different from traditional linear electric actuator, the utility model selects electric rotary actuator.
Since the inlet flap 400 of APU is punching press inlet flap, the running force that inlet flap actuator 300 exports
Square and holding torque must be larger.According to the aerodynamic loading on the inlet flap 400 for acting on APU, the operation of needs is extrapolated
Torque and holding torque design link mechanism 310, make link mechanism 310 according to the output torque of revolving electric actuator
Has the function of moment amplification.Again by adjusting each connecting rod size in link mechanism 310, make it to export different size of power
Square.
Referring to Fig. 3, the structure of the link mechanism 310 is illustrated, wherein Fig. 3 is the air inlet of the APU of the utility model
The schematic diagram of link mechanism 310 in air door control system 100.
More specifically, as shown in figure 3, link mechanism 310 is, for example, a four-bar mechanism.Electric rotary actuator
Actuator drive shafts S1 connect with being able to rotate with first connecting rod 311 (such as passing through spline), the actuating of electric actuator as a result,
Device drive shaft S1 rotation, and first connecting rod 311 is driven to move, first connecting rod 311 and second connecting rod 312 are rotated for example, by using joint
Mode connects, and first connecting rod 1 drives second connecting rod 2 to move as a result,.Second connecting rod 312 and third connecting rod 313 are similarly using pass
Rotation mode connection is saved, second connecting rod 312 drives third connecting rod 313 to move.Then, third connecting rod 313 and inlet flap 400
Inlet flap axis S2 is for example connected by square toes, and connecting rod 3 drives inlet flap axis S2 movement, to realize inlet flap 400
It opens and closes.
It is (rotary as inlet flap actuator 300 in the inlet flap control system 100 of the APU of the utility model
Electric actuator) an example, the operation torque for enumerating the inlet flap actuator 300 output is 825in-lbs, and holding torque is
400in-lbs。
In addition, according to the dimension scale of each connecting rod of aforementioned link mechanism 310, the moment amplification ratio of the link mechanism 310
Example is 2.5~4 times.By the moment amplification of aforementioned link mechanism, the operation torque for acting on APU inlet flap axis is minimum
2063in-lbs, the minimum 1000in-lbs of holding torque can overcome aerodynamic loading to act on the inlet flap 400 of APU whereby
On torque generate good punching press effect so that the aperture of the inlet flap 400 of APU is larger.
In addition, the output torque of aforementioned link mechanism 310 is adjustable.More specifically, by first connecting rod 311
Size (r) is adjusted, so as to export different size of torque.For example, shortening the length r of first connecting rod 311, can make
The output torque of aforementioned link mechanism 310 is amplified.
In Flight Test, by preparing the first connecting rod 311 of different length, coping with different output torques is needed
It asks, avoids redesigning link mechanism, reduce cost, improve efficiency.
Constituted according to as described above, in the inlet flap control system 100 of the APU of the utility model, due to APU into
Gas door actuator 300 is made of revolving electric actuator and link mechanism 310, therefore, there is no need to angular displacement sensor,
Inlet flap position can be controlled.
In addition, since the link mechanism 310 of inlet flap actuator 300 has the function of moment amplification, and the link mechanism
The dimension scale of each connecting rod in 310 is adjustable, therefore, can export different size of torque.
Referring to Fig. 4, the movement of the inlet flap actuator 300 and inlet flap 400 is illustrated, wherein Fig. 4 is this
Inlet flap actuator 300 (link mechanism 310) and air inlet wind in the inlet flap control system 100 of the APU of utility model
The schematic diagram of door 400.
As shown in figure 4, the first connecting rod 311 of the link mechanism 310 of inlet flap actuator 300 can be around actuator drive shafts
S1 rotates 118 °, according to the gearing of second connecting rod 312, the third connecting rod 313 of link mechanism 310 can be made to rotate 40.4 °, whereby,
Inlet flap 400 is driven to rotate to fully open position from closed position via inlet flap axis S2.
In other words, inlet flap 400 rotates 40.4 ° of arrival fully open positions from closed position.
In Fig. 4, chain-dotted line indicate inlet flap 400 closed position when link mechanism 310 each connecting rod position,
The position of each connecting rod of link mechanism 310 when the fully open position of heavy line expression inlet flap 400.
It is constituted according to as described above, about the unlatching of inlet flap 400, above-mentioned inlet flap position control system 100 is adopted
With a kind of control method of continuously on inlet flap, and the connecting rod machine of inlet flap actuator 300 is adjusted in real time
Structure 310 (position of each connecting rod), so as to reduce the requirement of the output torque to inlet flap actuator 300.
Those skilled in the art will be readily apparent other advantage and modification.Therefore, on its is wider range of,
The utility model is not limited to detail and representative embodiment shown and described herein.Therefore, it can not take off
Modification is made under the premise of spirit or scope from the general inventive concept as defined by the appended claims and its equivalent.
For example, in the embodiments of the present invention, the operation torque for instantiating the output of inlet flap actuator 300 is
825in-lbs, holding torque 400in-lbs, but the utility model is not limited to this, can according to the actual situation, it is suitable to select
Output operation torque and holding torque.
In addition, the moment amplification ratio for instantiating link mechanism 310 is 2.5~4 in the embodiments of the present invention
Times, but the utility model is not limited to this, can suitably determine the according to desired output operation torque and holding torque
The size of one connecting rod 311 finally determines the moment amplification ratio of suitable link mechanism 310.
In addition, instantiating the rotation angle (118 °) of first connecting rod 311, third in the embodiments of the present invention
Rotation angle (40.4 °) between the rotation angle (40.4 °) and the fully open position and closed position of inlet flap of connecting rod 313,
But the utility model is not limited to this, can determine suitable rotation angle according to actual needs.
Claims (7)
1. a kind of inlet flap position control system (100) of auxiliary power unit, the inlet flap position control system
It (100) include the Full Authority Digital electronic controller (200) of auxiliary power unit, by electric actuator and link mechanism (310)
The inlet flap actuator (300) of composition and the inlet flap opened, closed by the inlet flap actuator (300)
(400),
It is characterized in that,
The inlet flap position control system (100) further includes being different from the Full Authority Digital electronic controller (200)
Independent inlet flap controller (500),
The electric actuator of the inlet flap actuator (300) is revolving electric actuator.
2. the inlet flap position control system (100) of auxiliary power unit as described in claim 1, which is characterized in that
The inlet flap controller (500) and the Full Authority Digital electronic controller (200) carry out interconnection of signals, receive and
From the damper positions order of the Full Authority Digital electronic controller (200), and to the Full Authority Digital electronic controller
(200) damper positions state is fed back.
3. the inlet flap position control system (100) of auxiliary power unit as claimed in claim 2, which is characterized in that
The inlet flap controller (500) is dividually individually powered with the Full Authority Digital electronic controller (200),
The inlet flap actuator (300) is powered by the inlet flap controller (500), and the inlet flap activates
Device (300) and the inlet flap controller (500) carry out interconnection of signals.
4. the inlet flap position control system (100) of auxiliary power unit as claimed any one in claims 1 to 3,
It is characterized in that,
The output torque of the link mechanism (310) can be adjusted.
5. the inlet flap position control system (100) of auxiliary power unit as claimed in claim 4, which is characterized in that
The link mechanism (310) is four-bar mechanism,
The actuator drive shafts (S1) of electric rotary actuator pass through with the first connecting rod (311) of the link mechanism (310)
Spline connects with being able to rotate,
The first connecting rod (311) is connected with second connecting rod (312) using joint rotation mode,
The second connecting rod (312) is connected with third connecting rod (313) using joint rotation mode,
The third connecting rod (313) is connect with the inlet flap axis (S2) of the inlet flap (400) by square toes.
6. the inlet flap position control system (100) of auxiliary power unit as claimed in claim 5, which is characterized in that
The operation torque of inlet flap actuator (300) output is 825in-lbs, holding torque 400in-lbs.
7. the inlet flap position control system (100) of auxiliary power unit as claimed in claim 6, which is characterized in that
The moment amplification ratio of the link mechanism (310) is 2.5~4 times.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821235735.2U CN208828122U (en) | 2018-08-02 | 2018-08-02 | The inlet flap position control system of auxiliary power unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821235735.2U CN208828122U (en) | 2018-08-02 | 2018-08-02 | The inlet flap position control system of auxiliary power unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208828122U true CN208828122U (en) | 2019-05-07 |
Family
ID=66308133
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821235735.2U Active CN208828122U (en) | 2018-08-02 | 2018-08-02 | The inlet flap position control system of auxiliary power unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208828122U (en) |
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2018
- 2018-08-02 CN CN201821235735.2U patent/CN208828122U/en active Active
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