CN105003341B - A kind of engine oil flow regulating control system and control method - Google Patents
A kind of engine oil flow regulating control system and control method Download PDFInfo
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- CN105003341B CN105003341B CN201510349874.2A CN201510349874A CN105003341B CN 105003341 B CN105003341 B CN 105003341B CN 201510349874 A CN201510349874 A CN 201510349874A CN 105003341 B CN105003341 B CN 105003341B
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- servobcylinder
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Abstract
The present invention relates to aircraft fuel system icing tests technical field, and in particular to a kind of engine oil flow regulating control system and control method, with solving current fuel supply flow rate simulation system, the big problem of testing equipment complex structure, limitation.Control system can include servoBcylinder, flowmeter, PID controller, control servoBcylinder to be adjusted flow control valve by PID controller so that testing equipment simple structure, adaptability is stronger；In addition, also carrying out closed-loop control to servoBcylinder by the positional information of flow information and servo cylinder piston rod in fuel system loop so that Flow-rate adjustment more convenient and quicker and more accurate.
Description
Technical field
The present invention relates to aircraft fuel system icing tests technical field, and in particular to a kind of engine oil Flow-rate adjustment
Control system and control method.
Background technology
Aircraft fuel system task is to provide the lasting fuel oil for meeting pressure requirements to engine；In laboratory, fuel oil
System test needs the fuel consumption variations of simulated engine, fuel system to be furnished with oil feed pump in fuel tank, and fuel oil passes through fuel feed pump
Road is transported to engine low-lift pump；And engine oil flow simulation system is for controlling fuel system intermediate fuel oil flow
Change, so that the pressure flow change at simulated engine low pressure pump inlet.
Original fuel supply flow rate simulation system drives flow control valve using electrohydraulic servo valve, and engine is supplied so as to reach
The simulation of oily changes in flow rate, it is necessary to have electrohydraulic servo valve and corresponding power fluid potential source, finally causes that testing equipment structure is answered
Miscellaneous, limitation is big.
The content of the invention
It is an object of the invention to provide a kind of engine oil flow regulating control system and control method, to solve at present
Fuel supply flow rate simulation system in, the big problem of testing equipment complex structure, limitation.
The technical scheme is that：
A kind of engine oil flow regulating control system, including：
ServoBcylinder, its piston rod is connected with the flow control valve in fuel system loop, for controlling the Flow-rate adjustment
The aperture of valve, is additionally operable to generate the position signalling of the servo cylinder piston rod；
Flowmeter, is arranged in the fuel system loop, for detecting the reality for obtaining flowing through the flow control valve
Flow value；
PID controller, for the expectation flow value signal needed for experiment to be changed into for controlling the servoBcylinder piston
The flexible activation signal of bar, to drive the flow control valve to open an aperture corresponding with the expectation flow value；
The PID controller is additionally operable to judge whether the actual flow value is equal with the expectation flow value, and in institute
State actual flow value with it is described expectation flow value it is unequal when, according to the position signalling and the flow of the servo cylinder piston rod
The actual flow value signal of regulating valve controls the servoBcylinder to drive the flow control valve, causing the actual flow
Value is equal to the expectation flow value；
Bindiny mechanism, the bindiny mechanism further includes：
Link, the body of the servoBcylinder is fixedly installed on the top of the link, the sheet of the flow control valve
Body is fixedly installed on the bottom of the link, and the body positioned at the servoBcylinder vertical lower section, in addition, the servoBcylinder
The axis of piston rod overlapped with the axis of the valve rod of the flow control valve；
Connector, one end is fixedly connected with the piston rod end of the servoBcylinder, the other end and the flow control valve
The end of valve rod is fixedly connected.
Alternatively, the fuel system includes engine, experiment fuel tank, radiator and the flow control valve, described
The fuel-displaced port and oil return port for testing fuel tank are connected to the engine by pipeline respectively, and the radiator is arranged on described
Test between fuel-displaced port and the engine of fuel tank, the flow control valve is arranged on the oil return port of the experiment fuel tank
Between the engine.
Present invention also offers a kind of control of the engine oil flow regulating control system according to any of the above-described
Method, comprises the following steps：
Step one, the PID controller change into for controlling servoBcylinder to live the expectation flow value signal needed for experiment
The flexible activation signal of stopper rod；
Step 2, the servo cylinder piston rod are stretched according to the activation signal, to drive the flow control valve
Open an aperture corresponding with the expectation flow value；
Step 3, flowmeter detection obtain flowing through the actual flow value of the flow control valve, and by the reality
Flow value is transferred to the PID controller；
Meanwhile, the position signalling of the piston rod is transferred to the PID controller by the servoBcylinder；
Step 4, the PID controller judge whether the actual flow value is equal with the expectation flow value, when equal
Carry out step 5；Otherwise, step 6 is carried out；
Step 5, the piston rod of the holding servoBcylinder are in the position in step 2；
Step 6, the PID controller are according to the position signalling of the servo cylinder piston rod and the flow control valve
Actual flow value signal controls the servo cylinder piston rod to drive the flow control valve, causing the actual flow value
Equal to the expectation flow value.
Beneficial effects of the present invention：
In engine oil flow regulating control system of the invention and control method, by servoBcylinder come to Flow-rate adjustment
Valve is adjusted so that testing equipment simple structure, adaptability is stronger；In addition, also by flow information in fuel system loop
Closed-loop control is carried out to servoBcylinder with the positional information of servo cylinder piston rod so that Flow-rate adjustment more convenient and quicker and more accurate
Really.
Brief description of the drawings
Fig. 1 is the structural representation of inventive engine fuel supply flow rate regulation and control system；
Fig. 2 is the structural representation of link of the present invention；
Fig. 3 is the structural representation of connector of the present invention.
Specific embodiment
Here exemplary embodiment will be illustrated in detail, its example is illustrated in the accompanying drawings.Following description is related to
During accompanying drawing, unless otherwise indicated, the same numbers in different accompanying drawings represent same or analogous key element.
As shown in figures 1 and 3, a kind of engine oil flow regulating control system that the present invention is provided, for aircraft
Flow control valve in the fuel system loop of fuel system icing tests is controlled.Control system can include servoBcylinder 2,
Flowmeter 41, PID controller 1 etc..
ServoBcylinder 2 can be using various known servoBcylinders, the flow in piston rod and fuel system loop that it includes
Regulating valve 4 is connected, the aperture for controlling flow control valve 4.Wherein, piston rod is connected with the valve rod of flow control valve 4, can
In the present embodiment, it is attached by bindiny mechanism 3 to use various suitable connected modes.The position carried in servoBcylinder 2
Feedback function is put, the position signalling of piston rod can be generated, and position signalling is transferred to PID controller 1.
Specifically, bindiny mechanism 3 includes link 31 and connector 32.Link 31 can use various suitable knots
Structure, such as rectangular frame, cylindrical frame etc.；In the present embodiment, as shown in Fig. 2 using rectangular frame, including four branch hold round
Circular hole is offered on post and upper and lower bottom plate, and upper and lower bottom plate；The body of servoBcylinder 2 be fixedly installed on the top of link 31 (on
The upper surface of base plate)；The body of flow control valve 4 is fixedly installed on the bottom (lower surface of lower shoe) of link 31, and position
In the vertical lower section of the body of servoBcylinder 2.Further, connection is stretched into one end of the piston rod of servoBcylinder 2 through the hole of upper plate
Inside frame 31, one end of the valve rod of flow control valve 4 is stretched into inside link 31 through the hole of lower shoe, and with above-mentioned piston rod
One end be fixedly connected by connector 32, and the valve rod of axis and the flow control valve 4 of the piston rod of servoBcylinder 2 axis
Overlap.Connector 32 can be equally various suitable structures, repeat no more.
Flowmeter 41 can be arranged in fuel system loop using various known flowmeters, is flowed for detecting
The actual flow value of excessively stream adjustable valve 4, and actual flow value signal is transferred to PID controller 1.
PID controller 1 can equally use various suitable PID controllers, for by the expectation flow value needed for experiment
Signal changes into the activation signal for controlling the piston rod of servoBcylinder 2 flexible, to drive flow control valve 4 to open one with expectation
The corresponding aperture of flow value.In addition, PID controller 1 can also have flow input (not shown), for being input into experiment institute
The expectation flow value for needing.
Further, PID controller 1 is additionally operable to judge actual flow value and expects whether flow value is equal, and in actual stream
When value is with expecting that flow value is unequal, the actual flow value of position signalling and flow control valve 4 according to the piston rod of servoBcylinder 2
Signal come control servoBcylinder 2 drive flow control valve 4, with cause actual flow value be equal to expect flow value.Wherein, based on PID
The closed-loop control system technology of controller is highly developed, and here is omitted.
In engine oil flow regulating control system of the invention, flow control valve 4 is adjusted by servoBcylinder 2
Section so that testing equipment simple structure, adaptability is stronger.In addition, the present invention can also be by flowmeter in fuel system loop
The positional information of 41 flow informations for measuring and piston rod to servoBcylinder carries out closed-loop control so that Flow-rate adjustment is more convenient
It is quick and more accurate.
Fuel system of the invention includes engine 7, experiment fuel tank 5, radiator 6 and the flow control valve 4, described
The fuel-displaced port and oil return port of experiment fuel tank 5 (being inside provided with oil pump) are connected to the engine 7 by pipeline respectively, described
Radiator 6 is arranged between the fuel-displaced port of the experiment fuel tank 5 and the engine 7, and the flow control valve 4 is arranged on institute
State experiment fuel tank 5 oil return port and the engine 7 between.Wherein, whether icing tests need examination fuel system
Flow, the pressure of design requirement are issued in worst cold case, therefore, increase radiator 6 in oil supply loop and lower the temperature to fuel oil.
Present invention also offers a kind of control method of engine oil flow regulating control system, comprise the following steps：
Step one, the PID controller 1 change into for controlling servoBcylinder 2 the expectation flow value signal needed for experiment
The flexible activation signal of piston rod.
Step 2, the piston rod of the servoBcylinder 2 are stretched according to the activation signal, to drive the flow control valve
4 open an aperture corresponding with the expectation flow value.
Step 3, the detection of the flowmeter 41 obtain flowing through the actual flow value of the flow control valve 4, and by the reality
Border flow value is transferred to the PID controller 1.
Meanwhile, the position signalling of piston rod is transferred to the PID controller 1 by the servoBcylinder 2.
Step 4, the PID controller 1 judge whether the actual flow value is equal with the expectation flow value, equal
Shi Jinhang step 5；Otherwise, step 6 is carried out.
Step 5, the piston rod of the holding servoBcylinder 2 are in the position in step 2.
The position signalling and the flow control valve 4 of step 6, the PID controller 1 according to the piston rod of the servoBcylinder 2
Actual flow value signal control the piston rod of the servoBcylinder 2 to drive the flow control valve 4, causing the actual stream
Value is equal to the expectation flow value.
Equally, in the control method of engine oil flow regulating control system of the invention, by servoBcylinder 2 come convection current
Adjustable valve 4 is adjusted so that testing equipment simple structure, adaptability is stronger.In addition it is possible to pass through fuel system loop
Flow information that middle flowmeter 41 is measured and the positional information of piston rod carry out closed-loop control to servoBcylinder so that flow is adjusted
Section more convenient and quicker and more accurate.
The above, specific embodiment only of the invention, but protection scope of the present invention is not limited thereto, and it is any
Those familiar with the art the invention discloses technical scope in, the change or replacement that can be readily occurred in, all should
It is included within the scope of the present invention.Therefore, protection scope of the present invention should be with the scope of the claims
It is accurate.
Claims (3)
1. a kind of engine oil flow regulating control system, it is characterised in that including：
ServoBcylinder (2), its piston rod is connected with the flow control valve (4) in fuel system loop, for controlling the flow to adjust
The aperture of section valve (4), is additionally operable to generate the position signalling of the piston rod；
Flowmeter (41), is arranged in the fuel system loop, for detecting the reality for obtaining flowing through the flow control valve (4)
Border flow value；
PID controller (1), it is living for controlling the servoBcylinder (2) for the expectation flow value signal needed for experiment to be changed into
The flexible activation signal of stopper rod, expects that flow value is corresponding and opens to drive the flow control valve (4) to open one with described
Degree；
The PID controller (1) is additionally operable to judge whether the actual flow value is equal with the expectation flow value, and described
When actual flow value is unequal with the expectation flow value, according to the position signalling and the stream of the servoBcylinder (2) piston rod
The actual flow value signal of adjustable valve (4) controls the servoBcylinder (2) to drive the flow control valve (4), causing institute
Actual flow value is stated equal to the expectation flow value；
Bindiny mechanism (3), the bindiny mechanism (3) further includes：
Link (31), the body of the servoBcylinder (2) is fixedly installed on the top of the link (31), the Flow-rate adjustment
The body of valve (4) is fixedly installed on the bottom of the link (31), and positioned at the servoBcylinder (2) body it is vertical under
Side, in addition, the axis of the piston rod of the servoBcylinder (2) overlaps with the axis of the valve rod of the flow control valve (4)；
Connector (32), one end is fixedly connected with the piston rod end of the servoBcylinder (2), the other end and the flow control valve
(4) end of valve rod is fixedly connected.
2. engine oil flow regulating control system according to claim 1, it is characterised in that the fuel system bag
Engine (7), experiment fuel tank (5), radiator (6) and the flow control valve (4) are included, it is described to test the fuel-displaced of fuel tank (5)
Port and oil return port are connected to the engine (7) by pipeline respectively, and the radiator (6) is arranged on the experiment fuel tank
(5) between fuel-displaced port and the engine (7), the flow control valve (4) is arranged on the oil return of experiment fuel tank (5)
Between port and the engine (7).
3. a kind of control method of the engine oil flow regulating control system as described in claim any one of 1-2, its feature
It is to comprise the following steps：
Step one, the PID controller (1) change into for controlling servoBcylinder (2) the expectation flow value signal needed for experiment
The flexible activation signal of piston rod；
Step 2, the servoBcylinder (2) piston rod are stretched according to the activation signal, to drive the flow control valve
(4) aperture corresponding with the expectation flow value is opened；
Step 3, the flowmeter (41) detection obtain flowing through the actual flow value of the flow control valve (4), and by the reality
Border flow value is transferred to the PID controller (1)；
Meanwhile, the position signalling of the piston rod is transferred to the PID controller (1) by the servoBcylinder (2)；
Step 4, the PID controller (1) judge whether the actual flow value is equal with the expectation flow value, when equal
Carry out step 5；Otherwise, step 6 is carried out；
Step 5, the piston rod of the holding servoBcylinder (2) are in the position in step 2；
The position signalling and the flow control valve of step 6, the PID controller (1) according to the servoBcylinder (2) piston rod
(4) actual flow value signal controls the servoBcylinder (2) piston rod to drive the flow control valve (4), to cause described
Actual flow value is equal to the expectation flow value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510349874.2A CN105003341B (en) | 2015-06-23 | 2015-06-23 | A kind of engine oil flow regulating control system and control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510349874.2A CN105003341B (en) | 2015-06-23 | 2015-06-23 | A kind of engine oil flow regulating control system and control method |
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| Publication Number | Publication Date |
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| CN105003341A CN105003341A (en) | 2015-10-28 |
| CN105003341B true CN105003341B (en) | 2017-06-16 |
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| CN201510349874.2A Active CN105003341B (en) | 2015-06-23 | 2015-06-23 | A kind of engine oil flow regulating control system and control method |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107781838B (en) * | 2016-08-30 | 2019-08-06 | 中国飞行试验研究院 | A kind of moveable pump pressure type atomized fuel water dispensing apparatus and decreasing water distribution method |
| CN109808916B (en) * | 2019-02-28 | 2022-06-28 | 南京航空航天大学 | Integrated test device and method for measuring icing quantity of fuel oil water distribution and pipeline |
| CN112945561A (en) * | 2021-01-15 | 2021-06-11 | 北京动力机械研究所 | High enthalpy engine test bed kerosene adjusting system and adjusting method |
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| CN1419043A (en) * | 2001-11-13 | 2003-05-21 | 三菱重工业株式会社 | Fuel control method and device for combustion turbine |
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| CN104696077A (en) * | 2015-01-28 | 2015-06-10 | 北京华清燃气轮机与煤气化联合循环工程技术有限公司 | Fuel flow regulation method and PID controller |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1051612A (en) * | 1989-11-08 | 1991-05-22 | 中国科学院沈阳自动化研究所 | A kind of high-speed hydraulic servo cylinder |
| CN1419043A (en) * | 2001-11-13 | 2003-05-21 | 三菱重工业株式会社 | Fuel control method and device for combustion turbine |
| EP1387045B1 (en) * | 2002-07-30 | 2010-06-23 | Mitsubishi Heavy Industries, Ltd. | Fuel control method and apparatus for combined plant |
| CN101231215A (en) * | 2008-02-28 | 2008-07-30 | 北京航空航天大学 | Device and method for testing upper air performance of aircraft engine fuel oil system |
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