CN207842916U - A kind of commercial car air-pressure brake air supply system - Google Patents
A kind of commercial car air-pressure brake air supply system Download PDFInfo
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- CN207842916U CN207842916U CN201721303648.1U CN201721303648U CN207842916U CN 207842916 U CN207842916 U CN 207842916U CN 201721303648 U CN201721303648 U CN 201721303648U CN 207842916 U CN207842916 U CN 207842916U
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Abstract
A kind of commercial car air-pressure brake air supply system, including automatically controlled air compressor machine, engine, control unit of engine, air compressor machine electronic control unit, pressure sensor, automatically controlled air compressor machine is successively through oil water separator, drier, it is connect with vehicle gas circuit gas circuit after four guarantor's valves, the control mouth of oil water separator and the control mouth gas circuit of drier connect, engine is electrically connected with control unit of engine, air compressor machine electronic control unit respectively with control unit of engine, automatically controlled air compressor machine, pressure sensor is electrically connected, pressure sensor respectively with the control mouth of oil water separator, the control mouth of drier is electrically connected；When control, air compressor machine electronic control unit is first passed through to judge whether automatically controlled air compressor machine is connected with engine, to control automatically controlled air compressor machine switching working mode, then by pressure sensor detecting system air pressure, intermittent gas supply is carried out to control automatically controlled air compressor machine.The design is not only simple in structure, has a wide range of application, reliability is high and easy to operate.
Description
Technical field
The utility model is related to automobile electrically-controlled technical field more particularly to a kind of commercial car air-pressure brake air supply systems, main
To be suitable for simplifying structure, expand application range.
Background technology
Traditional energy car provides high-pressure air source by air compressor machine for entire Pneumatic braking system, and the sky of traditional energy car
Press is by engine supply work capacity source, and therefore, the work of air compressor machine is controlled by the work of engine；Integral new-energy passenger is past
Toward not wearing engine, needs individually to wear the air compressor machine of electric drive and provide high-pressure air source for vehicle Pneumatic braking system.It is existing
Some traditional energy cars are respectively present following problem with integral new-energy passenger：Traditional energy car is primarily present the air compressor machine service life
Problem low, noise is big；Integral new-energy passenger is primarily present the short problem of course continuation mileage.
Chinese patent, application publication number CN104842985A, data of publication of application are the disclosure of the invention on the 19th of August in 2015
A kind of air-pressure brake air supply controller and light bus, including electric compressor, frequency converter, pressure switch, water-oil separating
Device, air dryer and protection valve, electric compressor, oil water separator, air dryer and protection valve are connected with appendix successively
Logical to constitute main gas circuit, electric compressor is electrically connected with frequency converter, and frequency converter is electrically connected by low-voltage circuit and pressure switch,
Air dryer, oil water separator and pressure switch connect and compose branch gas circuit, are unloaded when main airline pressure reaches at or above drier
When lotus pressure, branch gas circuit is connected to main gas circuit, when main airline pressure is at or below drier pressure unloading, branch gas circuit and master
Gas circuit disconnects.Although the invention can realize braking system intermittent gas supply, it still has following defect：The invention can only fit
For pure electric vehicle or hybrid electric vehicle, intermittent gas supply control can not be then carried out for conventional commercial vehicle, meanwhile, the hair
Bright composed structure is complicated, needs whether abundance realizes intermittent gas supply control with double loop judgement braking system gas consumption.
Invention content
The purpose of the utility model is to overcome complicated, defect that application range is narrow existing in the prior art with ask
Topic provides a kind of simple in structure, commercial car air-pressure brake air supply system for having a wide range of application.
In order to achieve the above object, the technical solution of the utility model is：A kind of commercial car air-pressure brake air supply system,
Including automatically controlled air compressor machine, oil water separator, drier and four protect valves, the oil water separator include oil water separator air inlet,
Oil water separator control mouth, oil water separator gas outlet, the drier include drier air inlet, drier control mouth, do
Dry device outlet, drier gas outlet, the automatically controlled air compressor machine is successively through oil water separator air inlet, oil water separator outlet
It is connect with vehicle gas circuit gas circuit after mouth, drier air inlet, drier gas outlet, four guarantor's valves, the oil water separator control mouth
Connect with drier control mouth gas circuit, the commercial car air-pressure brake air supply system further include engine, control unit of engine,
Air compressor machine electronic control unit and pressure sensor, the engine are electrically connected with control unit of engine, the pneumatics Electrical Control list
Member is electrically connected with control unit of engine, automatically controlled air compressor machine, pressure sensor respectively, and the pressure sensor divides with grease respectively
It is electrically connected from device control mouth, drier control mouth.
The automatically controlled air compressor machine includes motor and electric machine controller, and the motor passes through separating switch and electric machine controller electricity
Connection, electric machine controller are electrically connected with air compressor machine electronic control unit.
Displacement sensor is provided on the separating switch, displacement sensor is electrically connected with air compressor machine electronic control unit.
The commercial car air-pressure brake air supply system further includes regeneration gas receiver, and the regeneration gas receiver is discharged with drier
Implication road connects.
The vehicle gas circuit includes gas receiver, preceding bridge braking system circuit, rear axle braking system circuit and auxiliary braking system
System circuit.
The air compressor machine electronic control unit is electrically connected by vehicle CAN bus with control unit of engine.
Compared with prior art, the beneficial effects of the utility model are：
1, in a kind of commercial car air-pressure brake air supply system of the utility model air-pressure brake air supply system further include engine,
Control unit of engine, air compressor machine electronic control unit and pressure sensor, engine are electrically connected with control unit of engine, air compressor machine
Electronic control unit is electrically connected with control unit of engine, automatically controlled air compressor machine, pressure sensor respectively, pressure sensor respectively with grease
Separator control mouth, the electrical connection of drier control mouth, such design is not only simple in structure, and air compressor machine electronic control unit controls
Automatically controlled air compressor machine switch mode monitors braking system air pressure by pressure sensor in real time to adapt to different vehicles, to control
It makes automatically controlled air compressor machine and carries out service intermittent in the case where setting braking system air pressure, promote traditional vehicle air compressor machine service life, reduce sky
Press noise and the course continuation mileage for promoting new energy vehicle.Therefore, the utility model is not only simple in structure, and application range
Extensively.
2, automatically controlled air compressor machine includes that motor and motor control in a kind of commercial car air-pressure brake air supply system of the utility model
Device, motor are electrically connected by separating switch with electric machine controller, and electric machine controller is electrically connected with air compressor machine electronic control unit, is separated
It shuts and is provided with displacement sensor, displacement sensor is electrically connected with air compressor machine electronic control unit, and when control, air compressor machine electronic control unit is logical
The signal that displacement sensor and control unit of engine export is crossed to judge whether automatically controlled air compressor machine is connected with engine, is improved
The unfailing performance of work；Air-pressure brake air supply system further includes regeneration gas receiver, and implication is discharged with drier in regeneration gas receiver
Road connect, regeneration gas receiver for be discharged moisture extra in drier and other, promote performance and the service life of drier.
Therefore, the utility model reliability is high.
3, vehicle is lighted a fire after the power is turned in a kind of commercial car air-pressure brake air supply system of the utility model, air compressor machine electronic control unit
The signal that control unit of engine and displacement sensor export is first passed through to judge whether automatically controlled air compressor machine is connected with engine,
To control automatically controlled air compressor machine switching working mode, then by pressure sensor detecting system air pressure, with control automatically controlled air compressor machine into
The intermittent gas supply of row, such design not only have a wide range of application, but also easy to operate.Therefore, the utility model not only applies model
It encloses wide and easy to operate.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model.
Fig. 2 is the control flow chart of the utility model.
In figure：Automatically controlled air compressor machine 1, oil water separator 2, oil water separator air inlet 21, oil water separator control mouth 22, oil
Separator gas outlet 23, drier 3, drier air inlet 31, drier control mouth 32, drier outlet 33, drier
Valve 4, engine 5, control unit of engine 6, air compressor machine electronic control unit 7, pressure sensor 8, regeneration gas storage are protected in gas outlet 34, four
Cylinder 9.
Specific implementation mode
The utility model is described in further detail below in conjunction with description of the drawings and specific implementation mode.
Referring to Fig. 1, Fig. 2, a kind of commercial car air-pressure brake air supply system, including it is automatically controlled air compressor machine 1, oil water separator 2, dry
Dry device 3 and four protects valve 4, and the oil water separator 2 includes oil water separator air inlet 21, oil water separator control mouth 22, grease
Separator gas outlet 23, the drier 3 include drier air inlet 31, drier control mouth 32, drier outlet 33, do
Dry device gas outlet 34, the automatically controlled air compressor machine 1 is successively through oil water separator air inlet 21, oil water separator gas outlet 23, drying
Device air inlet 31, drier gas outlet 34, four are connect after protecting valve 4 with vehicle gas circuit gas circuit, the oil water separator control mouth 22
It is connect with 32 gas circuit of drier control mouth, the commercial car air-pressure brake air supply system further includes engine 5, engine control list
Member 6, air compressor machine electronic control unit 7 and pressure sensor 8, the engine 5 are electrically connected with control unit of engine 6, the pneumatics
Electrical Control unit 7 is electrically connected with control unit of engine 6, automatically controlled air compressor machine 1, pressure sensor 8 respectively, the pressure sensor
8 are electrically connected with oil water separator control mouth 22, drier control mouth 32 respectively.
The automatically controlled air compressor machine 1 includes motor and electric machine controller, and the motor passes through separating switch and electric machine controller
Electrical connection, electric machine controller are electrically connected with air compressor machine electronic control unit 7.
Displacement sensor is provided on the separating switch, displacement sensor is electrically connected with air compressor machine electronic control unit 7.
The commercial car air-pressure brake air supply system further includes regeneration gas receiver 9, and the regeneration gas receiver 9 is arranged with drier
Export the connection of 33 gas circuits.
The vehicle gas circuit includes gas receiver, preceding bridge braking system circuit, rear axle braking system circuit and auxiliary braking system
System circuit.
The air compressor machine electronic control unit 7 is electrically connected by vehicle CAN bus with control unit of engine 6.
A kind of control method of commercial car air-pressure brake air supply system, the control method include the following steps：
Vehicle is lighted a fire after the power is turned on, and air compressor machine electronic control unit 7 judges electricity by obtaining the signal that control unit of engine 6 exports
Whether control air compressor machine 1 is connected with engine 5；If automatically controlled air compressor machine 1 is not connected with engine 5, air compressor machine electronic control unit 7
It controls automatically controlled air compressor machine 1 and switches to new energy pattern；If automatically controlled air compressor machine 1 is connected with engine 5, air compressor machine electronic control unit
7, which control automatically controlled air compressor machine 1, switches to traditional mode；
Under new energy pattern, air compressor machine control unit 7 obtains the pressure signal value that pressure sensor 8 exports；Work as pressure
When signal value is more than or equal to the setting value of air compressor machine control unit 7, air compressor machine control unit 7 controls automatically controlled air compressor machine 1 and stops supplying
Gas；When pressure signal value is less than the setting value of air compressor machine control unit 7, air compressor machine control unit 7 controls the fortune of automatically controlled air compressor machine 1
Turn acting, compressed air is provided to vehicle gas circuit, to realize intermittent gas supply；
Under traditional mode, air compressor machine electronic control unit 7 obtains the pressure signal value that pressure sensor 8 exports, when pressure is believed
Number value more than or equal to air compressor machine control unit 7 setting value when, automatically controlled air compressor machine 1 dallies, and extra air passes through drying
Device outlet 33 is discharged, to maintain vehicle gas circuit total gas pressure；When pressure signal value is less than the setting value of air compressor machine control unit 7
When, automatically controlled air compressor machine 1 is operated with engine 5 and is done work, and compressed air is provided to vehicle gas circuit, to realize intermittent gas supply.
The automatically controlled air compressor machine 1 includes motor and electric machine controller, and the motor passes through separating switch and electric machine controller
Electrical connection, electric machine controller are electrically connected with air compressor machine electronic control unit 7, and displacement sensor, displacement are provided on the separating switch
Sensor is electrically connected with air compressor machine electronic control unit 7；
Displacement electric signal is conveyed to air compressor machine electronic control unit 7 by institute's displacement sensors, and air compressor machine electronic control unit 7 passes through hair
The output signal of motivation control unit 6 and displacement electric signal judge whether automatically controlled air compressor machine 1 is connected with engine 5.
The pressure sensor 8 is used to obtain the pressure signal value of oil water separator 2 and drier 3, and by pressure signal
Value is conveyed to air compressor machine control unit 7.
The vehicle gas circuit includes gas receiver, preceding bridge braking system circuit, rear axle braking system circuit and auxiliary braking system
System circuit.
The principles of the present invention are described as follows：
The design provide it is a kind of it is simple in structure, reliability is high, the quotient that can be applied on conventional commercial vehicle and new energy vehicle
With vehicle air-pressure brake air supply system.Automatically controlled air compressor machine adapts to different automobile types by pattern switching, then by monitoring braking system in real time
Unite air pressure, control air compressor machine for electric installation, to control air compressor machine working method in the case where setting braking system air pressure into the ranks
Formula of having a rest is inflated and is stopped, and when braking system gas consumption does not less either have to gas, automatically controlled air compressor machine is out of service or idle running,
The course continuation mileage of promotion new energy vehicle and traditional vehicle air compressor machine service life and noiseproof feature.
Automatically controlled air compressor machine can be connected with engine, can not also be connected with engine.Air compressor machine electronic control unit is for controlling
The switching of automatically controlled air compressor machine both of which is made, and is communicated with vehicle VECU, while monitoring braking system atmospheric pressure value in real time, is realized empty
Press intermittent gas supply.Automatically controlled air compressor machine can be used for new energy commercialization vehicle, can also carry out promoting on conventional commercial vehicle and answer
With.
After vehicle igniting, air compressor machine electronic control unit obtains control unit of engine information by vehicle CAN bus, passes through
Whether there is the information plus automatically controlled air compressor machine internal end of travel signal while judging whether to be connected with engine, it is automatically controlled to complete with this
Air compressor machine pattern switching；Under traditional mode（Traditional mode is as current commercial car air compressor machine operating mode）, automatically controlled pneumatics
Machine is operated with engine, automatically controlled when pressure sensor detects that drier is less than setting value with oil water separator pressure
Air compressor machine does work under engine operation, is supplied to braking system；When pressure sensor detects that pressure is higher than setting value
When, automatically controlled air compressor machine is detached from idle running with engine and does not do work；Under new energy pattern, air compressor machine electronic control unit controls automatically controlled pneumatics
Machine completes intermittent gas supply under the driving of motor, when pressure sensor detects that pressure is less than setting value, pneumatics Electrical Control list
Member control motor operating acting, completes gas supply flow；When pressure sensor detects that pressure reaches setting value, pneumatics Electrical Control
Unit control motor stopping is not done work, and is no longer supplied to braking system, intermittent for airway dysfunction to realize.
Automatically controlled air compressor machine provides air pressure source for motor vehicle braking system, is handled by oil water separator and air dryer
Afterwards, compressed air enters in four guarantor's valves, and then to vehicle gas circuit（Gas receiver）Compressed air is provided.Oil water separator and drying
Device major function is the compressed air not oil-containing water ensured in braking system, ensures that the design and vehicle braking system function are normal
Work.Wherein oil water separator air inlet is connected with automatically controlled air compressor machine gas outlet, and oil water separator control mouth is controlled with drier
Mouth is connected, meanwhile, pressure sensor is installed in oil water separator control mouth and drier control mouth, mainly for detection of drier
With oil water separator and the pressure of entire braking system, so that air compressor machine electronic control unit judges whether to make automatically controlled air compressor machine to carry out work
Make.Drier air inlet is connected with oil water separator outlet orotracheal tube, the air inlet phase of drier outlet and regeneration gas receiver
Even, regeneration gas receiver is mainly used for that moisture and gas extra in drier is discharged, and promotes performance and the service life of drier,
Drier gas outlet is connected with the air inlet of four guarantor's valves, and clean compressed air is made to enter in gas receiver.
Automatically controlled air compressor machine includes motor and electric machine controller, and electric machine controller is controlled by air compressor machine electronic control unit, realizes electricity
Machine operates or stops, and separating mechanism is connected between motor and electric machine controller（Realize both of which switching）, separating mechanism
On be provided with displacement sensor, displacement signal is converted into electric signal, when motor is connected with engine by shaft coupling, displacement
Displacement electric signal is conveyed to air compressor machine electronic control unit by sensor, and air compressor machine electronic control unit is by identifying the displacement signal and starting
Machine control unit signal carries out pattern switching.
Since pressure sensor output electric signal is real time analogue signals, signal hysteresis and advanced is prevented, while in order to more
Control of the good realization to automatically controlled air compressor machine, conventional PID self adaptive controls are introduced in control algolithm, are calculated by PID control
Method optimizes processing to air pressure signal, avoids advanced and lag, improves robustness, realizes real-time Adaptive Control.
Embodiment：
Referring to Fig. 1, a kind of commercial car air-pressure brake air supply system, including automatically controlled air compressor machine 1, oil water separator 2, drier
3, four valve 4, engine 5, control unit of engine 6, air compressor machine electronic control unit 7, pressure sensor 8 and regeneration gas receiver 9, institute are protected
It includes oil water separator air inlet 21, oil water separator control mouth 22, oil water separator gas outlet 23, institute to state oil water separator 2
It states drier 3 and includes drier air inlet 31, drier control mouth 32, drier outlet 33, drier gas outlet 34, it is described
Automatically controlled air compressor machine 1 is successively through oil water separator air inlet 21, oil water separator gas outlet 23, drier air inlet 31, drier
Gas outlet 34, four is connect after protecting valve 4 with vehicle gas circuit gas circuit, the oil water separator control mouth 22 and 32 gas of drier control mouth
Road connects, and the engine 5 is electrically connected with control unit of engine 6, and the air compressor machine electronic control unit 7 is controlled with engine respectively
Unit 6, automatically controlled air compressor machine 1, pressure sensor 8 be electrically connected, the pressure sensor 8 respectively with oil water separator control mouth 22,
Drier control mouth 32 is electrically connected；The automatically controlled air compressor machine 1 includes motor and electric machine controller, and the motor passes through separating switch
It is electrically connected with electric machine controller, electric machine controller is electrically connected with air compressor machine electronic control unit 7, and displacement is provided on the separating switch
Sensor, displacement sensor are electrically connected with air compressor machine electronic control unit 7；The regeneration gas receiver 9 and 33 gas circuit of drier outlet
Connection；The vehicle gas circuit includes that gas receiver, preceding bridge braking system circuit, rear axle braking system circuit and auxiliary braking system are returned
Road；The air compressor machine electronic control unit 7 is electrically connected by vehicle CAN bus with control unit of engine 6.
By said program, referring to Fig. 2, a kind of control method of commercial car air-pressure brake air supply system, the control method
Include the following steps：
Vehicle is lighted a fire after the power is turned on, and air compressor machine electronic control unit 7 is by obtaining the signal and position that control unit of engine 6 exports
The displacement electric signal of displacement sensor output judges whether automatically controlled air compressor machine 1 is connected with engine 5；If automatically controlled air compressor machine 1 and hair
Motivation 5 is not connected with, then air compressor machine electronic control unit 7 controls automatically controlled air compressor machine 1 and switches to new energy pattern；If automatically controlled air compressor machine 1
It is connected with engine 5, then air compressor machine electronic control unit 7 controls automatically controlled air compressor machine 1 and switches to traditional mode（Default mode）；
Under new energy pattern, air compressor machine control unit 7 obtains the pressure signal value that pressure sensor 8 exports；Work as pressure
Signal value is more than or equal to the setting value of air compressor machine control unit 7（Setting value needs artificial setting in advance）When, air compressor machine control is single
The 7 automatically controlled air compressor machine 1 of control of member stops gas supply；When pressure signal value is less than the setting value of air compressor machine control unit 7, air compressor machine control
Unit 7 processed controls the operating acting of automatically controlled air compressor machine 1, compressed air is provided to vehicle gas circuit, to realize intermittent gas supply；
Under traditional mode, air compressor machine electronic control unit 7 obtains the pressure signal value that pressure sensor 8 exports, when pressure is believed
Number value more than or equal to air compressor machine control unit 7 setting value when, automatically controlled air compressor machine 1 dallies, and extra air passes through drying
Device outlet 33 is discharged, to maintain vehicle gas circuit total gas pressure；When pressure signal value is less than the setting value of air compressor machine control unit 7
When, automatically controlled air compressor machine 1 is operated with engine 5 and is done work, and compressed air is provided to vehicle gas circuit, to realize intermittent gas supply；
The pressure sensor 8 is used to obtain the pressure signal value of oil water separator 2 and drier 3, and by pressure signal
Value is conveyed to air compressor machine control unit 7.
Claims (4)
1. a kind of commercial car air-pressure brake air supply system, including automatically controlled air compressor machine（1）, oil water separator（2）, drier（3）And
Four protect valve（4）, the oil water separator（2）Including oil water separator air inlet（21）, oil water separator control mouth（22）, grease
Separator gas outlet（23）, the drier（3）Including drier air inlet（31）, drier control mouth（32）, drier row
Outlet（33）, drier gas outlet（34）, the automatically controlled air compressor machine（1）Successively through oil water separator air inlet（21）, grease point
From device gas outlet（23）, drier air inlet（31）, drier gas outlet（34）, four protect valves（4）Connect afterwards with vehicle gas circuit gas circuit
It connects, the oil water separator control mouth（22）With drier control mouth（32）Gas circuit connects, it is characterised in that：The commercial vehicle pneumatic
It further includes engine that air supply system is moved in compacting（5）, control unit of engine（6）, air compressor machine electronic control unit（7）And pressure sensor
（8）, the engine（5）With control unit of engine（6）Electrical connection, the air compressor machine electronic control unit（7）Respectively with engine
Control unit（6）, automatically controlled air compressor machine（1）, pressure sensor（8）Electrical connection, the pressure sensor（8）Respectively with water-oil separating
Device control mouth（22）, drier control mouth（32）Electrical connection.
2. a kind of commercial car air-pressure brake air supply system according to claim 1, it is characterised in that：The commercial car air pressure
Braking air supply system further includes regeneration gas receiver（9）, the regeneration gas receiver（9）With drier outlet（33）Gas circuit connects.
3. a kind of commercial car air-pressure brake air supply system according to claim 1, it is characterised in that：The vehicle gas circuit packet
Include gas receiver, preceding bridge braking system circuit, rear axle braking system circuit and auxiliary braking system circuit.
4. a kind of commercial car air-pressure brake air supply system according to claim 1, it is characterised in that：The pneumatics Electrical Control
Unit（7）Pass through vehicle CAN bus and control unit of engine（6）Electrical connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721303648.1U CN207842916U (en) | 2017-09-30 | 2017-09-30 | A kind of commercial car air-pressure brake air supply system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721303648.1U CN207842916U (en) | 2017-09-30 | 2017-09-30 | A kind of commercial car air-pressure brake air supply system |
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| Publication Number | Publication Date |
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| CN207842916U true CN207842916U (en) | 2018-09-11 |
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ID=63426332
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| CN201721303648.1U Active CN207842916U (en) | 2017-09-30 | 2017-09-30 | A kind of commercial car air-pressure brake air supply system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109624958A (en) * | 2018-12-26 | 2019-04-16 | 珠海广通汽车有限公司 | The braking system and its assembly method of vehicle, vehicle |
-
2017
- 2017-09-30 CN CN201721303648.1U patent/CN207842916U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109624958A (en) * | 2018-12-26 | 2019-04-16 | 珠海广通汽车有限公司 | The braking system and its assembly method of vehicle, vehicle |
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