CN109538366A - A kind of rail pressure intelligent optimizing control system and method - Google Patents
A kind of rail pressure intelligent optimizing control system and method Download PDFInfo
- Publication number
- CN109538366A CN109538366A CN201910084602.2A CN201910084602A CN109538366A CN 109538366 A CN109538366 A CN 109538366A CN 201910084602 A CN201910084602 A CN 201910084602A CN 109538366 A CN109538366 A CN 109538366A
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- rail pressure
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- shell
- pressure intelligent
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- 238000000034 method Methods 0.000 title claims description 18
- 238000005457 optimization Methods 0.000 claims abstract description 40
- 238000004891 communication Methods 0.000 claims description 22
- 238000002347 injection Methods 0.000 claims description 13
- 239000007924 injection Substances 0.000 claims description 13
- 230000008450 motivation Effects 0.000 claims description 5
- 239000007921 spray Substances 0.000 claims description 5
- 238000006243 chemical reaction Methods 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 claims description 3
- 230000001276 controlling effect Effects 0.000 claims description 3
- 239000010705 motor oil Substances 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 claims description 3
- 230000032683 aging Effects 0.000 abstract description 2
- 238000010000 carbonizing Methods 0.000 abstract description 2
- 239000000446 fuel Substances 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 8
- 238000005265 energy consumption Methods 0.000 description 8
- 238000013016 damping Methods 0.000 description 5
- 238000009434 installation Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000004556 brain Anatomy 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/30—Controlling fuel injection
- F02D41/38—Controlling fuel injection of the high pressure type
- F02D41/3809—Common rail control systems
- F02D41/3836—Controlling the fuel pressure
Abstract
A kind of rail pressure intelligent optimizing control system, rail pressure intelligent optimization device includes shell and the rail pressure intelligent optimization unit for operation adjustment, rail pressure intelligent optimization unit is fixed in shell, rail pressure intelligent optimization unit connects the acquisition data that Engine ECU output end collects Engine ECU by the input terminal of shell, the input terminal of rail pressure sensor and shell connection acquisition rail pressure sensor parameter, rail pressure intelligent optimization unit, which is connected to send with the input terminal of Engine ECU by the output end of shell, outputs data to Engine ECU.Rail pressure intelligent optimization device is independently installed in control system, can be adapted to the different automobile types system that is connected to, and install convenient is easy to spread；Adjust automatically air oil when discharge amount of exhaust gas, improves old vehicle because of mechanical aging automatically, carbonizing of engine, unknown failure and other reasons bring power dropping itself, and fuel consumption increases problem.
Description
Technical field
The present invention relates to electronic technology field more particularly to a kind of rail pressure intelligent optimizing control system and methods.
Background technique
In reducing engine energy consumption and the device for promoting engine performance, the prior art is mostly in admission pressure and air inlet temperature
It spends under two modules and optimizes relevant parameter, the disadvantage is that: the two parameters passively can only be calculated by ECU in principle, to reach
It is passively engine speed-raising in low speed, moderate speed range；In high-speed range, passively reduces and answer parameter, subtracted with reaching
The mechanical load etc. of few engine；In the state 4 that releases now, country, the automobile of 5 or more discharge standard of state, ECU to this two
A parameter is restricted, and the effect of optimization, that is, original optimization admission pressure and intake air temperature is not achieved, increasing has been not achieved
Add engine performance and saves the effect of fuel oil.
Therefore under various complex working conditions or in the automobile of discharge standard state 4 and 4 or more state, new optimal control is needed
System.
Summary of the invention
The purpose of the present invention is to solve disadvantages existing in the prior art, and a kind of rail pressure intelligent optimization control proposed
System processed.
To achieve the goals above, present invention employs following technical solutions: a kind of rail pressure intelligent optimizing control system, packet
Include rail pressure sensor, rail pressure intelligent optimization device and Engine ECU, rail pressure intelligent optimization device includes shell and for operation tune
Whole rail pressure intelligent optimization unit, rail pressure intelligent optimization unit are fixed in shell, and rail pressure intelligent optimization unit passes through shell
Input terminal connects the acquisition data that Engine ECU output end collects Engine ECU, the input terminal connection of rail pressure sensor and shell
Acquire rail pressure sensor parameter, output end and the input terminal phase running fire of Engine ECU of the rail pressure intelligent optimization unit by shell
It send and outputs data to Engine ECU.
Preferably, rail pressure intelligent optimization unit includes rail pressure sensing unit and main control unit, and the input terminal of shell includes rail
Sensing unit input terminal and main control unit input terminal are pressed, rail pressure sensing unit input terminal connects rail pressure sensor, for acquiring rail
Pressure sensor parameter, rail pressure sensing unit and main control unit communication connection, main control unit connect Engine ECU by interface, connect
Mouth includes main control unit input terminal and shell output end.
Preferably, main control unit includes single-chip microcontroller microcomputer computer board, A/D converter, interface communication module, storage
Unit and data collector, for storing the storage unit and single-chip microcontroller microcomputer electricity of the operation adjusting parameter of different automobile types
Brain plate is connected, and data collector, which is connected by interface communication module with Engine ECU, to be acquired engine operating condition and be sent to monolithic
Machine microcomputer computer board, rail pressure sensing unit and single-chip microcontroller microcomputer computer board communication connection, single-chip microcontroller microcomputer
Operation output data adjusted is sent to Engine ECU by interface communication module by calculation machine computer board.
Preferably, engine operating condition includes engine speed, rail pressure pressure, engine torque, Engine Injection Mass and hair
One of motivation air mass flow is a variety of.
Preferably, output data includes that Engine Injection Mass, engine oil spout angle, engine spray time, rail pressure pressure in advance
One of revolving speed of power, discharge amount of exhaust gas and turbocharger is a variety of.
Preferably, single-chip microcontroller microcomputer computer board further includes the adjustment list for regulating and controlling rail pressure intelligent optimization unit
Member, adjustment unit respectively with storage unit, interface communication module and rail pressure sensing unit communication connection.
A kind of control method of rail pressure intelligent optimizing control system, includes the following steps:
S1: rail pressure intelligent optimization unit acquires rail pressure sensor and Engine ECU data；
S2: the main control unit of rail pressure intelligent optimization unit carries out operation adjustment, obtains output data；
S3: main control unit transmission outputs data to Engine ECU；
S4: Engine ECU recycles S1-S3 after receiving output data.
Preferably, further include S0 before S1: adjustment unit execution initialization and calibration operation, including storage unit initialization,
Rail pressure sensing unit initializes, opens interruption, Abort Timer initialization, rail pressure sensing unit precision is calibrated, starting interface leads to
Interrogate module.
Preferably, storage unit is initialized as the output data range according to different automobile types adjustment storage unit storage.
Preferably, single-chip microcontroller microcomputer is delivered to after rail pressure sensing unit acquisition rail pressure sensor parameter A/D conversion in S1
Calculation machine computer board, single-chip microcontroller microcomputer computer board acquire Engine ECU data.
The beneficial effects of the present invention are:
1) by acquisition rail pressure sensor parameter and the communication with Engine ECU, optimize the parameters such as the rail pressure under former each operating condition,
Reach adjustment air oil when exhaust gas discharge amount, control the revolving speed of turbocharger, reduces engine energy consumption and start with promotion
Machine performance；
2) rail pressure intelligent optimization unit is independently installed in control system, can be adapted to the different automobile types system that is connected to, install convenient, easily
In popularization；
3) adjust automatically air oil when discharge amount of exhaust gas improves old vehicle because of mechanical aging automatically, and carbonizing of engine, itself is not
Bright failure and other reasons bring power dropping, fuel consumption increase problem.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of rail pressure intelligent optimizing control system of the present invention.
Fig. 2 is a kind of main control unit structural schematic diagram of rail pressure intelligent optimizing control system of the present invention.
Fig. 3 is a kind of control method flow chart of rail pressure intelligent optimizing control system of the present invention.
Specific embodiment
Below in conjunction with 1-2 of the embodiment of the present invention and attached drawing 1-3, technical solution in the embodiment of the present invention carries out clear
Chu is fully described by, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.
Embodiment 1, referring to Fig.1-3, a kind of rail pressure intelligent optimizing control system, including rail pressure sensor 4, rail pressure are intelligently excellent
Makeup set with Engine ECU 3, rail pressure intelligent optimization device include shell 1 and for operation adjustment rail pressure intelligent optimization unit
2, rail pressure intelligent optimization unit is fixed in shell, and rail pressure intelligent optimization unit connects Engine ECU by the input terminal of shell
Output end collects the acquisition data of Engine ECU, and the input terminal connection of rail pressure sensor and shell acquires rail pressure sensor parameter,
Rail pressure intelligent optimization unit, which is connected to send with the input terminal of Engine ECU by the output end of shell, outputs data to engine
ECU。
A kind of rail pressure intelligent optimizing control system, rail pressure intelligent optimization unit include rail pressure sensing unit and main control unit,
The input terminal of shell includes rail pressure sensing unit input terminal and main control unit input terminal, and rail pressure sensing unit input terminal connects rail pressure
Sensor, for acquiring rail pressure sensor parameter, rail pressure sensing unit and main control unit communication connection, main control unit pass through interface
Engine ECU is connected, interface includes main control unit input terminal and shell output end.
A kind of rail pressure intelligent optimizing control system, main control unit include single-chip microcontroller microcomputer computer board, A/D conversion
Device, interface communication module, storage unit and data collector, the storage unit of the operation adjusting parameter for storing different automobile types
It is connected with single-chip microcontroller microcomputer computer board, data collector, which is connected to acquire with Engine ECU by mouth communication module, to be started
Machine operating condition is simultaneously sent to single-chip microcontroller microcomputer computer board, and rail pressure sensing unit and single-chip microcontroller microcomputer computer board communicate
Operation output data adjusted is sent to engine by interface communication module by connection, single-chip microcontroller microcomputer computer board
ECU。
A kind of rail pressure intelligent optimizing control system, engine operating condition include engine speed, rail pressure pressure, engine torsion
One of square, Engine Injection Mass and engine air capacity are a variety of.
A kind of rail pressure intelligent optimizing control system, output data include Engine Injection Mass, engine oil spout angle, start
Machine sprays one of revolving speed of time, rail pressure pressure, discharge amount of exhaust gas and turbocharger or a variety of in advance.
A kind of rail pressure intelligent optimizing control system, single-chip microcontroller microcomputer computer board further include for regulating and controlling rail pressure intelligence
Optimize unit adjustment unit, adjustment unit respectively with storage unit, interface communication module and rail pressure sensing unit communication connection.
Further, shell is additionally provided with USB interface, and USB interface is connected with storage unit, is used for external adjustment storage unit
The intelligent terminal of interior operation adjusting parameter, intelligent terminal have the operation adjusting parameter of different automobile types.Intelligent terminal includes movement
One of equipment, microcomputer, desktop computer are a variety of.
A kind of rail pressure intelligent optimizing control system, the input terminal and output end of shell are arranged with flexible shell, and stretch shell spiral shell
Line is connected to shell, including the first flexible shell and the second flexible shell, and the first flexible shell section is greater than the input terminal of shell, and second stretches
Contracting shell section is greater than the output end of shell.
Further, the shell that stretches is turning type telescopic shell, and the flexible shell internal diameter of nearly shell ends is greater than the flexible of remote shell ends
Shell is connected with rail pressure sensor, Engine ECU respectively in use, flexible shell is in contraction state, passes through rotation by shell internal diameter
Turn to stretch flexible shell, cover input terminal/output end junction of shell, reduces interference of the vibration to connection, enhance the steady of connection
It is qualitative.
A kind of rail pressure intelligent optimizing control system, each end face of shell are equipped with the peace of the damping sucker for installing damping sucker
Position is filled, damping sucker installation position matches with damping sucker.It is inhaled in the installation damping of respective housings end face installation position according to shell
Disk reduces interference of the vibration to rail pressure intelligent optimization device, while being convenient for the fixation and installation of rail pressure intelligent optimization device.
A kind of control method of rail pressure intelligent optimizing control system, includes the following steps:
S1: rail pressure intelligent optimization unit acquires rail pressure sensor and Engine ECU data；
S2: the main control unit of rail pressure intelligent optimization unit carries out operation adjustment, obtains output data；
S3: main control unit transmission outputs data to Engine ECU；
S4: Engine ECU recycles S1-S3 after receiving output data.Form closed-loop control.
A kind of control method of rail pressure intelligent optimizing control system further includes S0 before S1: adjustment unit execute initialization and
Calibration operation, including storage unit initialization, rail pressure sensing unit initialize, open interruption, Abort Timer initialization, rail pressure biography
Feel the calibration of unit precision, starting interface communication module.
A kind of control method of rail pressure intelligent optimizing control system, storage unit are initialized as depositing according to different automobile types adjustment
The output data range of storage unit storage, is finely adjusted output data range according to different automobile types, advanced optimizes engine
Performance, adaptation various are easy to spread.
A kind of control method of rail pressure intelligent optimizing control system, rail pressure sensing unit acquires rail pressure sensor parameter in S1
Single-chip microcontroller microcomputer computer board is delivered to after A/D conversion, single-chip microcontroller microcomputer computer board acquires Engine ECU number
According to.
A kind of control method of rail pressure intelligent optimizing control system, single-chip microcontroller microcomputer computer board use assembler language
It writes, according to different operating conditions, circulation obtains acquisition data, and loop computation adjustment cycles through and outputs data to Engine ECU,
The control compensation system for forming a closed loop reduces engine energy consumption under various operating conditions, promotes engine performance.
A kind of control method of rail pressure intelligent optimizing control system, main control unit are held according to the acquisition multiple operating conditions of data point
Row operation adjustment, operation adjustment are as follows:
When starting engine, since engine waits for that there has been no exhaust gas discharge, engine speed 0, turbine increase devices in fast situation
Also it not yet works.Under this operating condition, it is 0 that main control unit, which collects engine speed, and rail pressure is the parameters such as 0, the miniature calculating of single-chip microcontroller
Machine computer board operation adjusts output data: Engine Injection Mass increases 3-8%, and rail pressure boost in pressure 3-8%, engine sprays in advance ahead of time
Time 5-10us.Engine is set to be easier to start.
Under low speed full-loading condition, main control unit, which collects engine torque demand, will expire under negative volume state, adjust rail pressure pressure
Power, single-chip microcontroller microcomputer computer board operation adjust output data: Engine Injection Mass increases 25-30%, turbocharger
Revolving speed improves 25%-30%.By increasing Engine Injection Mass, engine is made to quickly increase exhaust gas；Control turbo charger speed
It quickly improves, increases air inflow, increase fresh air while intake air temperature can be reduced, quickly obtain required torque, further according to
Recycle acquire data, single-chip microcontroller microcomputer computer board operation adjustment output data, gradually reduce Engine Injection Mass with
Discharge amount of exhaust gas reaches the consumption minimization of torque needed for capable of maintaining at present, reduces engine energy consumption, promotes engine performance.
Under middling speed operating condition, main control unit collects engine torque demand, and circulating collection acquires data, according to engine
The variation of engine speed and engine are due to temperature (the 25-280 degrees Celsius of left side stepped up that work during scanning frequency
It is right), rail pressure pressure 10-20%, Engine Injection Mass 10-20% and discharge amount of exhaust gas 10-20% are increased or decreased, constantly circulation fortune
It calculates and adjusts, consumption minimization needed for making rated engine distributive value and turbo charger speed maintain current engine torque,
Achieving the effect that, which reduces engine energy consumption, promotes engine performance.
Under high-speed working condition, main control unit collects engine torque demand, circle collection data, according to the row of engine
The variation of revolving speed during speed, due under very big effect of inertia under fast state, energy needed for maintaining engine torque instantly
Measure it is almost nil, single-chip microcontroller microcomputer computer board operation adjust output data: continue to increase the hair within change
Motivation distributive value and discharge amount of exhaust gas.By the variation of driving conditions, change is constantly exported to Engine ECU, control
The revolving speed of turbocharger, achieving the effect that, which reduces engine energy consumption, promotes engine performance.
Further, change 0%-2%.
Further, storage unit is stored under each operating condition every output data threshold value.
Above-mentioned adjustment is that Millisecond time quantum generates output variation, and adjustment precision is very high.Above several operating conditions
Optimization, only by adjusting admission pressure and intake air temperature, has been unable to reach in state 4, the discharge standard automobile of 5 or more state
It reduces engine energy consumption and promotes the effect of engine performance.
Embodiment 2
A kind of control method of rail pressure intelligent optimizing control system, main control unit execute fortune according to the acquisition multiple operating conditions of data point
Adjustment is calculated, operation adjustment is as follows:
When starting engine, since engine waits for that there has been no exhaust gas discharge, engine speed 0, turbine increase devices in fast situation
Also it not yet works.Under this operating condition, it is 0 that main control unit, which collects engine speed, and rail pressure is the parameters such as 0, the miniature calculating of single-chip microcontroller
Machine computer board operation adjusts output data: Engine Injection Mass increases 2-5%, and rail pressure boost in pressure 2-5%, engine sprays in advance ahead of time
Time 5-10us.Engine is set to be easier to start.
Under low speed full-loading condition, main control unit, which collects engine torque demand, will expire under negative volume state, adjust rail pressure pressure
Power, single-chip microcontroller microcomputer computer board operation adjust output data: discharge amount of exhaust gas increases 15%-20%.Engine Injection Mass
Increase 15-20%, the revolving speed of turbocharger improves 15%-20%.
Under middling speed operating condition, main control unit collects engine torque demand, and circulating collection acquires data, according to engine
The variation of engine speed and engine are due to temperature (the 25-280 degrees Celsius of left side stepped up that work during scanning frequency
It is right), increase or decrease the revolving speed 5-20%, Engine Injection Mass 5-20% and discharge amount of exhaust gas 5-20% of turbocharger.
Under high-speed working condition, main control unit collects engine torque demand, circle collection data, according to the row of engine
The variation of revolving speed during speed, due under very big effect of inertia under fast state, energy needed for maintaining engine torque instantly
Measure it is almost nil, single-chip microcontroller microcomputer computer board operation adjust output data: continue to increase the hair within change
Motivation distributive value and discharge amount of exhaust gas.By the variation of driving conditions, change is constantly exported to Engine ECU, control
The revolving speed of turbocharger, achieving the effect that, which reduces engine energy consumption, promotes engine performance.
Further, change 2%-5%.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Anyone skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (10)
1. a kind of rail pressure intelligent optimizing control system, including rail pressure sensor, rail pressure intelligent optimization device and Engine ECU,
It is characterized in that, rail pressure intelligent optimization device includes shell and the rail pressure intelligent optimization unit for operation adjustment, and rail pressure is intelligently excellent
Change unit to be fixed in shell, rail pressure intelligent optimization unit connects Engine ECU output end by the input terminal of shell and collects hair
The input terminal connection acquisition rail pressure sensor parameter of the acquisition data of motivation ECU, rail pressure sensor and shell, rail pressure intelligent optimization
Unit, which is connected to send with the input terminal of Engine ECU by the output end of shell, outputs data to Engine ECU.
2. a kind of rail pressure intelligent optimizing control system according to claim 1, which is characterized in that rail pressure intelligent optimization unit
Including rail pressure sensing unit and main control unit, the input terminal of shell includes rail pressure sensing unit input terminal and main control unit input
End, rail pressure sensing unit input terminal connects rail pressure sensor, for acquiring rail pressure sensor parameter, rail pressure sensing unit and master control
Unit communications connection, main control unit connect Engine ECU by interface, and interface includes main control unit input terminal and shell output
End.
3. a kind of rail pressure intelligent optimizing control system according to claim 2, which is characterized in that main control unit includes monolithic
Machine microcomputer computer board, A/D converter, interface communication module, storage unit and data collector, for storing different vehicles
The storage unit of the operation adjusting parameter of type is connected with single-chip microcontroller microcomputer computer board, and data collector passes through interface communication
Module is connected with Engine ECU to be acquired engine operating condition and is sent to single-chip microcontroller microcomputer computer board, rail pressure sensing unit
With single-chip microcontroller microcomputer computer board communication connection, single-chip microcontroller microcomputer computer board is by operation output data adjusted
Engine ECU is sent to by interface communication module.
4. a kind of rail pressure intelligent optimizing control system according to claim 3, which is characterized in that engine operating condition includes hair
One of motivation revolving speed, rail pressure pressure, engine torque, Engine Injection Mass and engine air capacity are a variety of.
5. a kind of rail pressure intelligent optimizing control system according to claim 3, which is characterized in that output data includes starting
Machine distributive value, engine oil spout angle, engine spray in advance the time, rail pressure pressure, discharge amount of exhaust gas and turbocharger revolving speed
One of or it is a variety of.
6. a kind of rail pressure intelligent optimizing control system according to claim 3, which is characterized in that single-chip microcontroller microcomputer
Computer board further includes the adjustment unit for regulating and controlling rail pressure intelligent optimization unit, and adjustment unit is logical with storage unit, interface respectively
Interrogate module and rail pressure sensing unit communication connection.
7. a kind of control method of rail pressure intelligent optimizing control system described in -6 according to claim 1, which is characterized in that including
Following steps:
S1: rail pressure intelligent optimization unit acquires rail pressure sensor and Engine ECU data；
S2: the main control unit of rail pressure intelligent optimization unit carries out operation adjustment, obtains output data；
S3: main control unit transmission outputs data to Engine ECU；
S4: Engine ECU recycles S1-S3 after receiving output data.
8. a kind of control method of rail pressure intelligent optimizing control system according to claim 7, which is characterized in that before S1 also
Including S0: adjustment unit executes initialization and calibration operation, including storage unit initialization, rail pressure sensing unit are initialized, opened
It interrupts, Abort Timer initialization, the calibration of rail pressure sensing unit precision, starting interface communication module.
9. a kind of control method of rail pressure intelligent optimizing control system according to claim 8, which is characterized in that storage is single
Member is initialized as the output data range according to different automobile types adjustment storage unit storage.
10. a kind of control method of rail pressure intelligent optimizing control system according to claim 7, which is characterized in that in S1
It is delivered to single-chip microcontroller microcomputer computer board after the acquisition rail pressure sensor parameter A/D conversion of rail pressure sensing unit, single-chip microcontroller is micro-
Type computer computer board acquires Engine ECU data.
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| CN201910084602.2A CN109538366A (en) | 2019-01-29 | 2019-01-29 | A kind of rail pressure intelligent optimizing control system and method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910084602.2A CN109538366A (en) | 2019-01-29 | 2019-01-29 | A kind of rail pressure intelligent optimizing control system and method |
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ID=65838606
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