CN108131189B - After-treatment technics test macro - Google Patents
After-treatment technics test macro Download PDFInfo
- Publication number
- CN108131189B CN108131189B CN201810098211.1A CN201810098211A CN108131189B CN 108131189 B CN108131189 B CN 108131189B CN 201810098211 A CN201810098211 A CN 201810098211A CN 108131189 B CN108131189 B CN 108131189B
- Authority
- CN
- China
- Prior art keywords
- post
- processing section
- controller
- temperature
- tracheae
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000012360 testing method Methods 0.000 title claims abstract description 27
- 238000012805 post-processing Methods 0.000 claims abstract description 42
- 230000003647 oxidation Effects 0.000 claims description 7
- 238000007254 oxidation reaction Methods 0.000 claims description 7
- 238000006555 catalytic reaction Methods 0.000 claims description 5
- 239000002245 particle Substances 0.000 claims description 5
- 238000011161 development Methods 0.000 abstract description 6
- 238000013461 design Methods 0.000 abstract description 5
- 238000000034 method Methods 0.000 description 4
- 238000001514 detection method Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 230000008450 motivation Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 241000009298 Trigla lyra Species 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N11/00—Monitoring or diagnostic devices for exhaust-gas treatment apparatus, e.g. for catalytic activity
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/40—Engine management systems
Abstract
The invention discloses a kind of After-treatment technics test macros, it include: engines tail tracheae, heat exchanger, post-processing section, exhaust pipe and controller, wherein, the controller is used for: being controlled the connected relation of the engines tail tracheae and the heat exchanger, is formed first flow path；It is also used to control the connected relation of the engines tail tracheae and the post-processing section, forms second flow path；And the connected relation for controlling the engines tail tracheae and the exhaust pipe, form third flow path；The heat exchanger is connected to the post-processing section, and the post-processing section is connected to the exhaust pipe.Directly engine original row's tail gas can be detected, while directly after-treatment system is tested, so as to subsequent development design.While detecting engine, the test development to post-processing section is realized, moreover it is possible to be accurately controlled the variation of temperature and flow.
Description
Technical field
The present invention relates to test device more particularly to a kind of After-treatment technics test macros.
Background technique
With the development of the automobile industry, emission regulation is increasingly stringenter, and the requirement to engine aftertreatment system performance is got over
Come it is higher, and test verifying as after-treatment system develop in an important ring, the requirement of the accuracy for the result that it is tested
Also higher and higher.
Existing after-treatment system is usually first to examine to the former discharge standard of engine after the completion of engine development
It surveys, according to the data after detection, carries out after-treatment system and be designed, after this mode needs that engines is waited to form and detect
It just can be carried out, extend the design cycle.
Summary of the invention
The object of the present invention is to provide a kind of After-treatment technics test macros, can synchronize in engine detection process
The acquisition of realization data, complete design scheme shortens the design cycle.
After-treatment technics test macro of the invention, comprising: engines tail tracheae, heat exchanger, post-processing section, exhaust
Pipe and controller, wherein the controller is used for: controlling the connected relation of the engines tail tracheae and the heat exchanger,
Form first flow path；It is also used to control the connected relation of the engines tail tracheae and the post-processing section, forms second flow path；
And the connected relation for controlling the engines tail tracheae and the exhaust pipe, form third flow path；The heat exchanger
It is connected to the post-processing section, the post-processing section is connected to the exhaust pipe.
After-treatment technics test macro as described above, wherein there is the controller temperature sensor and flow to pass
Sensor is respectively used to obtain the temperature and flow of the tail gas for entering the post-processing section；The heat exchanger is cooler；Work as institute
When stating temperature lower than predetermined temperature is equal to, the controller controls the engines tail tracheae and is connected to the post-processing section；Work as institute
When stating temperature higher than the predetermined temperature, the controller controls the engines tail tracheae and is connected to the heat exchanger；It is described
Tail gas is the tail gas of engines tail tracheae discharge.
After-treatment technics test macro as described above, wherein there is the controller temperature sensor and flow to pass
Sensor is respectively used to obtain the temperature and flow of the tail gas for entering the post-processing section；The heat exchanger is heater；Work as institute
When stating temperature lower than predetermined temperature, the controller controls the engines tail tracheae and is connected to the heat exchanger；When the temperature
When degree is optionally greater than the predetermined temperature, the controller controls the engines tail tracheae and is connected to the post-processing section；It is described
Tail gas is the tail gas of engines tail tracheae discharge.
After-treatment technics test macro as described above, wherein the controller includes the first valve, the second valve and third
Valve is separately positioned on the first flow path, the second flow path and the third flow path.
After-treatment technics test macro as described above, wherein the post-processing section includes that the oxidation being sequentially communicated is urged
Change device, particle trap, catalysis reductor.
After-treatment technics test macro of the invention is formed with three flow paths, wherein third under the action of controller
Flow path is directly communicated to exhaust pipe, can directly detect to engine original row's (Raw exhaust) tail gas, meanwhile, and have second
Road, portion after tail gas is introduced, directly tests after-treatment system, so as to subsequent development design, meanwhile, first flow path with
Heat exchanger connection, and heat exchanger also communication channel post-processing section, so as to control the temperature that tail gas enters post-processing section.Separately
Outside, under the action of third flow path, moreover it is possible to control flows into the flow of the tail gas of post-processing section, thus, make engine of the invention
Test macro is post-processed while detecting engine, realizes the test development to post-processing section, moreover it is possible to be accurately controlled temperature
With the variation of flow.
Detailed description of the invention
Fig. 1 is that inventive engine post-processes test macro catenation principle figure；
Fig. 2 is that inventive engine post-processes test macro connection schematic diagram.
Appended drawing reference:
Engines tail tracheae 1, heat exchanger 2, post-processing section 3, exhaust pipe 4, controller 5, oxidation catalyzer 31, particle are caught
Catch device 32, catalysis reductor 33, the first valve 51, the second valve 52, third valve 53.
Specific embodiment
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, and for explaining only the invention, and is not construed as limiting the claims.
The present invention discloses a kind of After-treatment technics test macro, as shown in Figure 1, comprising: engines tail tracheae 1, heat
Exchanger 2, post-processing section 3, exhaust pipe 4 and controller 5 further include certainly necessary connecting line, to realize to engines tail
The guide functions for the tail gas that tracheae 1 discharges.The connected relation of these pipelines can be realized by controller 5 and be controlled, specifically how real
Connected relation is now controlled, such as can be the valve opening and closing on 5 control piper of controller, realizes control whether connection.
The controller 5 realizes above-mentioned control, and for main tool there are three aspect, first aspect is the control motor exhaust
The connected relation of pipe 1 and the heat exchanger 2, to form first flow path.The first flow path may include: engines tail tracheae 1,
Heat exchanger 2 and the pipeline between them should also have controller 5 to realize the necessary components of control, such as valve certainly.
Second aspect is the connected relation of the control engines tail tracheae 1 and the post-processing section 3, forms second
Road；Second flow path may include: engines tail tracheae 1, post-processing section 3 and the pipeline between them, equally should also have
Controller 5 realizes the necessary components of control, such as valve.
The third aspect is the connected relation for controlling the engines tail tracheae 1 and the exhaust pipe 4, forms third stream
Road；The third flow path may include: engines tail tracheae 1, exhaust pipe 4 and the pipeline between them, equally have controller 5 real
The necessary components now controlled, such as valve.
By could be aware that in terms of three above, controller 5 mainly realize engines tail tracheae 1 and heat exchanger 2, after
The connected relation of processing unit 3,4 these three components of exhaust pipe does not interact certainly, between them, can open simultaneously,
It can simultaneously close off, equally can partially open part closing, specifically be opened and closed condition, be described below.
Then, heat exchanger 2 is also connected to post-processing section 3, that is to say, that when exhaust temperature needs to increase or cool down, passes through
Heat exchanger 2 carries out temperature adjusting, then enters back into post-processing section 3.Post-processing section 3 is connected to the exhaust pipe 4, that is to say, that row
Tracheae 4 can be expelled directly out the tail gas that engines tail tracheae 1 discharges, and (original row, direct emission can be used for detecting former row's here
Ingredient etc.), also discharge the tail gas that portion 3 is handled after post treatment.
It is especially warm to temperature and the traffic requirement difference of the tail gas for entering post-processing section 3 due to different testing requirements
Degree, the temperature for being first subjected to the tail gas that the exhaust pipe of engine 1 gives off influence, in the following, after just raising being needed to enter respectively
The temperature of the tail gas in reason portion 3, and need to be lowered into two kinds of situation explanations of temperature of the tail gas of post-processing section 3.
Need the case where reducing temperature: heat exchanger 2 is cooler, specifically, controller 5 has temperature sensor and stream
Quantity sensor is respectively used to obtain the temperature and flow of the tail gas for entering the post-processing section 3；It is equal in advance when the temperature is lower than
When determining temperature, the controller 5 controls the engines tail tracheae 1 and is connected to the post-processing section 3；Described in being higher than when the temperature
When predetermined temperature, the controller 5 controls the engines tail tracheae 1 and is connected to the heat exchanger 2；The tail gas is the hair
The tail gas that motivation offgas duct 1 is discharged.
Need the case where improving temperature: heat exchanger 2 is heater, specifically, controller 5 has temperature sensor and stream
Quantity sensor is respectively used to obtain the temperature and flow of the tail gas for entering the post-processing section 3；When the temperature is lower than predetermined temperature
When spending, the controller 5 controls the engines tail tracheae 1 and is connected to the heat exchanger 2；When the temperature is optionally greater than described
When predetermined temperature, the controller 5 controls the engines tail tracheae 1 and is connected to the post-processing section 3；The tail gas is the hair
The tail gas that motivation offgas duct 1 is discharged.
The detailed structure of specific description After-treatment technics test macro below, referring to fig. 2, controller 5 include first
Valve 51, the second valve 52 and third valve 53 are separately positioned on the first flow path, the second flow path and the third flow path.
Only as an example, the exit that such as the first valve 51 is located at heat exchanger 2, this is a kind of example, be can be in heat in Fig. 2
Whether the inlet of exchanger 2, can be by the flow path as long as can be realized control tail gas, and certainly, this namely shows
Control the flow path on-off.
Preferably, post-processing section 3 includes the oxidation catalyzer 31 being sequentially communicated, particle trap 32, catalysis reductor 33.
Oxidation catalyzer 31, is catalyzed in these three components of reductor 33 particle trap 32, and temperature is both provided between any two
Sensor, and also there is temperature sensor before oxidation catalyzer 31, meanwhile, the temperature before oxidation catalyzer 31 is arranged in this
Sensor can be same with the temperature sensor in above controller 5.
That is, tail gas after entering before these three components of processing unit 3, all can carry out temperature by temperature sensor
Degree detection.It is furthermore preferred that the temperature sensor before each components can be the temperature sensor of controller 5.Any one
Temperature sensor it is too high or too low for temperature, controller 5 can control corresponding fluid communication state, especially first flow path
With the connected state of second flow path, with realize temperature adjust.
Corresponding temperature sensor, post-processing section 3 can also have flow sensor, which can pass with temperature
The position of sensor setting is identical, can also be down to setting one behind the outlet of catalysis reductor 33.According to flow sensor, control
Device 5 can control the on-off of third flow path, realize the control to flow.
In order to facilitate understanding in Fig. 2, temperature sensor is marked with T, flow sensor is marked with S.
Structure, feature and effect of the invention, the above institute are described in detail based on the embodiments shown in the drawings
Only presently preferred embodiments of the present invention is stated, but the present invention does not limit the scope of implementation as shown in the drawings, it is all according to structure of the invention
Think made change or equivalent example modified to equivalent change, when not going beyond the spirit of the description and the drawings,
It should all be within the scope of the present invention.
Claims (5)
1. a kind of After-treatment technics test macro characterized by comprising
Engines tail tracheae (1), heat exchanger (2), post-processing section (3), exhaust pipe (4) and controller (5), wherein
The controller (5) is used for: controlling the connected relation of the engines tail tracheae (1) and the heat exchanger (2), is formed
First flow path；It is also used to control the connected relation of the engines tail tracheae (1) and the post-processing section (3), forms second
Road；And the connected relation for controlling the engines tail tracheae (1) and the exhaust pipe (4), form third flow path；
The heat exchanger (2) is connected to the post-processing section (3), and the post-processing section (3) is connected to the exhaust pipe (4).
2. After-treatment technics test macro according to claim 1, which is characterized in that
The controller (5) has temperature sensor and flow sensor, is respectively used to obtain into the post-processing section (3)
The temperature and flow of tail gas；
The heat exchanger (2) is cooler；
When the temperature, which is lower than, is equal to predetermined temperature, the controller (5) is controlled described in engines tail tracheae (1) connection
Post-processing section (3)；
When the temperature is higher than the predetermined temperature, the controller (5) is controlled described in engines tail tracheae (1) connection
Heat exchanger (2)；
The tail gas is the tail gas of the engines tail tracheae (1) discharge.
3. After-treatment technics test macro according to claim 1, which is characterized in that
The controller (5) has temperature sensor and flow sensor, is respectively used to obtain into the post-processing section (3)
The temperature and flow of tail gas；
The heat exchanger (2) is heater；
When the temperature is lower than predetermined temperature, the controller (5) controls engines tail tracheae (1) the connection heat and hands over
Parallel operation (2)；
When the temperature is optionally greater than the predetermined temperature, the controller (5) controls engines tail tracheae (1) connection
The post-processing section (3)；
The tail gas is the tail gas of the engines tail tracheae (1) discharge.
4. After-treatment technics test macro according to claim 1-3, which is characterized in that
The controller (5) includes the first valve (51), the second valve (52) and third valve (53), is separately positioned on described first-class
On road, the second flow path and the third flow path.
5. After-treatment technics test macro according to claim 1, which is characterized in that
The post-processing section (3) includes the oxidation catalyzer (31) being sequentially communicated, particle trap (32), catalysis reductor
(33)。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810098211.1A CN108131189B (en) | 2018-01-31 | 2018-01-31 | After-treatment technics test macro |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810098211.1A CN108131189B (en) | 2018-01-31 | 2018-01-31 | After-treatment technics test macro |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108131189A CN108131189A (en) | 2018-06-08 |
| CN108131189B true CN108131189B (en) | 2019-06-04 |
Family
ID=62430064
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810098211.1A Expired - Fee Related CN108131189B (en) | 2018-01-31 | 2018-01-31 | After-treatment technics test macro |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108131189B (en) |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2843879B2 (en) * | 1993-01-22 | 1999-01-06 | 本田技研工業株式会社 | Catalyst deterioration detection device for internal combustion engine |
| CN1181259C (en) * | 2002-03-28 | 2004-12-22 | 天津大学 | Evaluating tester for catalytic cleaner activity of motorcycle |
| DE102009054935B4 (en) * | 2009-12-18 | 2022-03-10 | Robert Bosch Gmbh | Method and device for diagnosing the dynamics of an exhaust gas sensor |
| DE102009060288A1 (en) * | 2009-12-23 | 2011-06-30 | Volkswagen AG, 38440 | Operating ammonia storage system for catalyst system operating based on principle of selective catalytic reduction comprises a main memory that is equipped with heating device and contains ammonia-storing material |
| CN103711551B (en) * | 2013-01-23 | 2016-05-18 | 日立汽车系统(苏州）有限公司 | Vehicle tail gas treatment device and engine system |
| KR20160109977A (en) * | 2015-03-13 | 2016-09-21 | 현대중공업 주식회사 | Scr system and control method thereof |
| US9846110B2 (en) * | 2015-06-02 | 2017-12-19 | GM Global Technology Operations LLC | Particulate matter sensor diagnostic system and method |
-
2018
- 2018-01-31 CN CN201810098211.1A patent/CN108131189B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN108131189A (en) | 2018-06-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107956587B (en) | Method and system for exhaust gas heat exchanger diagnostics | |
| US8516908B2 (en) | Sample system for gaseous emission measurement | |
| RU2666934C2 (en) | Determination of pollution of end gas recycling cooler with use of dpov sensor (differential pressure on valve) | |
| US7881852B2 (en) | Method and device for detecting a leak in an exhaust-gas section of a combustion engine | |
| CN103388533B (en) | Method for diagnosing the valve of fluid input lines | |
| US7937994B2 (en) | Method and device for detecting the presence of an exhaust gas treatment system in an exhaust line of an internal combustion engine | |
| US9468877B2 (en) | Exhaust gas analyzing apparatus | |
| CN108131189B (en) | After-treatment technics test macro | |
| JP6784579B2 (en) | Failure diagnosis device and failure diagnosis method | |
| EP3246702A1 (en) | Gas analysis apparatus | |
| CN111120079A (en) | Valve testing device and method | |
| US8041501B2 (en) | Method and system for monitoring an active hydrocarbon adsorber | |
| US8024108B2 (en) | Method for monitoring the secondary air system in an exhaust-gas purification system | |
| WO2007056429A2 (en) | Three sensor comparison rationality test | |
| US8865082B2 (en) | Method and system for monitoring a hydrocarbon adsorber | |
| CN102791983B (en) | For being vented the apparatus and method of measurement | |
| EP2592416A2 (en) | Device for supplying simulated gas | |
| KR100929585B1 (en) | Performance tester of vehicle post-processing device using burner | |
| Michelin et al. | Advanced compact SCR mixer: BlueBox | |
| CN109790801A (en) | The cast type EGR cross pipe with integral venturi for flow measurement | |
| CN108626036A (en) | The system and method for improving LR-EGR activation | |
| JP2019174205A (en) | Sampling device for test | |
| JP4739389B2 (en) | Operation method of internal combustion engine | |
| CN110160794A (en) | A kind of intercooler thermal cycling test system and test method | |
| US9016062B2 (en) | Checking an exhaust gas flap |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190604 |