CN204436543U - A kind of automobile canister testing apparatus - Google Patents
A kind of automobile canister testing apparatus Download PDFInfo
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- CN204436543U CN204436543U CN201420837041.1U CN201420837041U CN204436543U CN 204436543 U CN204436543 U CN 204436543U CN 201420837041 U CN201420837041 U CN 201420837041U CN 204436543 U CN204436543 U CN 204436543U
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- canister
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- 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
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Abstract
The utility model discloses a kind of automobile canister testing apparatus, available test battery device meets the demand of adsorption test and desorption test, can also meet the demand that automobile state five standard is tested the initial operating capability of canister.Its technological scheme is: the gas piping having redesigned canister testing apparatus, improves gas flow process, makes the trystate testing canister consistent with running state in the car, thus substantially increases the stability of test accuracy and data.By programmable controller circuit (PLC) to the control of the on-off action of each solenoid valve, meet the emulation adsorptive power test of canister in the canister testing apparatus that can connect at same set of pipeline, the emulation desorption ability of canister tests and the initial operating capability of canister is tested, thus achieve the full-automatic reusable edible of benchmark canister, reduce the difficulty of equipment metering.
Description
Technical field
The utility model relates to automobile canister test, particularly relates to and can complete at same set of testing apparatus the technology that adsorption test also can complete desorption test.
Background technique
At present, as shown in Figure 1, there is test function single (only having single absorption or desorption test) and there is the problem testing stability, poor repeatability in the principle of the automobile canister testing installation on market.Need the reference canister used owing to being in passive adsorption state over a long time simultaneously in process of the test, need to constantly update, greatly affect conventional efficient.
Because canister is the very important control gear that discharges pollutants on automobile, control the core component of vehicle fuel steam output especially, therefore false test data can demarcate exploitation to automobile, sizing causes negative impact, and then the aggravation pollution of atmosphere environment, the increase of automobile fuel consumption amount further.
Related documents also discloses the principle of part canister testing installation, cause the main cause of its test result instability to be that the trystate of canister and the actual working state of canister on vehicle are incomplete same by analysis, this has had larger deviation with regard to the development goal causing actual canister working efficiency and Automobile Enterprises.
At the beginning of 2014, Light-duty Vehicle state five of China emission standard GB18352.5-2013 " light-duty vehicle pollutant emission limit and method of measurement (Chinese five-stage) " are put into effect, wherein require before evaporative pollutants emission testing to carry out canister adsorption test, and increased " test of canister initial operating capability " newly.As newly-increased supporting authentication item important in state five standard, each large vehicle manufacturers all has larger test demand after regulation is put into effect, but current testing apparatus is difficult to meet this test demand.
Model utility content
Below provide the brief overview of one or more aspect to provide the basic comprehension to these aspects.Detailed the combining of this not all aspect contemplated of general introduction is look at, and both not intended to be pointed out out the scope of key or decisive any or all aspect of elements nor delineate of all aspects.Its unique object is the sequence that some concepts that will provide one or more aspect in simplified form think the more detailed description provided after a while.
The purpose of this utility model is to solve the problem, and provides a kind of automobile canister testing apparatus, and available test battery device meets the demand of adsorption test and desorption test, can also meet the demand that automobile state five standard is tested the initial operating capability of canister.
The technical solution of the utility model is: the utility model discloses a kind of automobile canister testing apparatus, device comprises programmable control circuit, first electronic balance, second electronic balance, test canister, benchmark canister, wherein testing canister is positioned on the first electronic balance, benchmark canister is positioned on the second electronic balance, the adsorption port of test canister is communicated with the mixing source of the first gas source and the second gas source by the first solenoid valve, the desorption mouth of test canister is communicated with the first threeway by the second solenoid valve, the atmosphere entry of test canister is communicated with the second threeway, the adsorption port of benchmark canister is communicated with the second threeway by the 3rd solenoid valve, the desorption mouth of benchmark canister is communicated with the first threeway by the 4th solenoid valve, the atmosphere entry of benchmark canister is communicated with the 3rd threeway, second threeway is communicated with the 4th threeway, 4th threeway is communicated with the second independent gas source by the 5th solenoid valve, 4th threeway is communicated with the 3rd threeway, 3rd threeway is communicated with the 5th threeway by the 6th solenoid valve, 5th threeway is communicated with the first threeway by the 7th solenoid valve, 5th threeway is communicated with outlet port, programmable control circuit passes through the first solenoid valve, second solenoid valve, 3rd solenoid valve, 4th solenoid valve, 5th solenoid valve, the control of the 6th solenoid valve and the 7th solenoid valve, implement the mixed gas trend in a device of the first gas and the second gas.
According to an embodiment of automobile canister testing apparatus of the present utility model, at the equal installing gas flowmeter in the first gas source place and the second gas source place.
According to an embodiment of automobile canister testing apparatus of the present utility model, the first gas is the analog gas of gasoline vapor, and the second gas is cleaning gas.
According to an embodiment of automobile canister testing apparatus of the present utility model, in the emulation adsorption test of test canister, programmable control circuit is by the control to the first solenoid valve, the second solenoid valve, the 3rd solenoid valve, the 4th solenoid valve, the 5th solenoid valve, the 6th solenoid valve and the 7th solenoid valve, the mixed gas of the first gas and the second gas is made first to enter the adsorption port of test canister from mixing source, then, after testing the atmosphere entry of the atmosphere entry of canister, the adsorption port of benchmark canister and benchmark canister, finally discharge from outlet port.
According to an embodiment of automobile canister testing apparatus of the present utility model, in the emulation desorption test of test canister, programmable control circuit passes through the first solenoid valve, second solenoid valve, 3rd solenoid valve, 4th solenoid valve, 5th solenoid valve, the control of the 6th solenoid valve and the 7th solenoid valve, make the second gas first be entered the atmosphere entry of test canister and benchmark canister respectively by the 4th threeway from the second independent gas source simultaneously, then enter the desorption mouth of test canister and benchmark canister respectively simultaneously, be aggregated into outlet port finally by the 5th threeway to discharge.
According to an embodiment of automobile canister testing apparatus of the present utility model, in the initial operating capability test of test canister, programmable control circuit, by the control to the first solenoid valve, the second solenoid valve, the 3rd solenoid valve, the 4th solenoid valve, the 5th solenoid valve, the 6th solenoid valve and the 7th solenoid valve, repeats emulation adsorption test and the test of emulation desorption of testing canister.
The utility model contrast prior art has following beneficial effect: the utility model has redesigned the gas piping of canister testing apparatus, improve gas flow process, make the trystate testing canister consistent with running state in the car, thus substantially increase the stability of test accuracy and data.By programmable controller circuit (PLC) to the control of the on-off action of each solenoid valve, meet the emulation adsorptive power test of canister in the canister testing apparatus that can connect at same set of pipeline, the emulation desorption ability of canister tests and the initial operating capability of canister is tested, thus achieve the full-automatic reusable edible of benchmark canister, reduce the difficulty of equipment metering.
Accompanying drawing explanation
Fig. 1 shows the structure of traditional automobile canister testing apparatus.
Fig. 2 shows the schematic diagram of automobile canister testing apparatus of the present utility model in canister emulation adsorption test.
Fig. 3 shows the schematic diagram of automobile canister testing apparatus of the present utility model in the test of canister emulation desorption.
Fig. 4 shows the schematic diagram of automobile canister testing apparatus of the present utility model in the test of canister initial operating capability.
Embodiment
After the detailed description of reading embodiment of the present disclosure in conjunction with the following drawings, above-mentioned feature and advantage of the present utility model can be understood better.In the accompanying drawings, each assembly is not necessarily drawn in proportion, and the assembly with similar correlation properties or feature may have identical or close reference character.
First the working principle of canister on automobile and effect is introduced.Fuel tank is often full of gasoline vapour at normal temperatures, and gasoline car fuel tank, when temperature and pressure change, can make a large amount of gasoline vapour by vent discharged in air.The effect of evaporative emission control system is introduced by steam burn and prevent from evaporateing in air.What this process played an important role is activated carbon canister.Active carbon has adsorption function, when automobilism or flame-out time, the gasoline vapour of fuel tank enters the top of activated carbon canister by pipeline, fresh air then enters activated carbon canister from activated carbon canister bottom.After engine misses, gasoline vapour and fresh air are in in-tank mixing and be stored in activated carbon canister, when after engine start, the valve being contained in the fuel evaporation purification plant between activated carbon canister and intake manifold is opened, and the gasoline vapour in activated carbon canister is inhaled into intake manifold and participates in burning.Thus decrease leaking of oil gas, be conducive to protection of the environment and energy saving.
Fig. 2 shows the principle of automobile canister testing apparatus of the present utility model in canister emulation adsorption test, Fig. 3 shows the principle of automobile canister testing apparatus of the present utility model in the test of canister emulation desorption, and Fig. 4 shows the principle of automobile canister testing apparatus of the present utility model in the test of canister initial operating capability.It is all identical that pipeline in these three tests connects.
Please simultaneously see Fig. 2 to Fig. 4, automobile canister testing apparatus of the present utility model comprises programmable control circuit 1, first electronic balance 2, second electronic balance 3, test canister 4, benchmark canister 5, wherein testing canister 4 is positioned on the first electronic balance 2, and benchmark canister 5 is positioned on the second electronic balance 3.
It (is butane in the present embodiment that the adsorption port 4a of test canister 4 is communicated with the first gas source by the first solenoid valve 61, analog gas as gasoline vapor) and the second gas source (be nitrogen in this enforcement, as cleaning gas) mixing source, as mixing first gas source in source and the second gas source place installing gas flowmeter 81 and 82 respectively.The desorption mouth 4b of test canister 4 is communicated with the first threeway 71 by the second solenoid valve 62, and the atmosphere entry 4c of test canister 4 is communicated with the second threeway 72.
The adsorption port 5a of benchmark canister 5 is communicated with the second threeway 72 by the 3rd solenoid valve 63, and the desorption mouth 5b of benchmark canister 5 is communicated with the first threeway 71 by the 4th solenoid valve 64, and the atmosphere entry 5c of benchmark canister 5 is communicated with the 3rd threeway 73.Second threeway 72 is communicated with the 4th threeway the 74, four threeway 74 and is communicated with independent the second gas source (being nitrogen in the present embodiment) by the 5th solenoid valve 65, and this second independent gas source place installing gas flowmeter 83.4th threeway 74 is communicated with the 3rd threeway the 73, three threeway 73 and is communicated with the 5th threeway the 75, five threeway 75 by the 6th solenoid valve 66 and is communicated with the first threeway the 71, five threeway 75 by the 7th solenoid valve 67 and is communicated with outlet port.
Programmable control circuit 1, by the control to the first solenoid valve 61, second solenoid valve 62, the 3rd solenoid valve 63, the 4th solenoid valve 64, the 5th solenoid valve 65, the 6th solenoid valve 66 and the 7th solenoid valve 67, implements the mixed gas trend in a device of the first gas (being butane in the present embodiment) and the second gas (being nitrogen in the present embodiment).
Fig. 2 shows the gas flow of automobile canister testing apparatus of the present utility model in canister emulation adsorption test.The adsorption test of canister uses canister pre-treater to carry out canister absorption, adopt the mixed gas of 50% volume butane and 50% volume nitrogen, with the flow of 40g/h butane, canister is adsorbed, when canister adsorption test, first press Fig. 2 connecting test canister and an auxiliary benchmark canister, then use the mixed gas simulated oil steam of 50% volume butane and 50% volume nitrogen to adsorb canister.The proportions of ingredients of butane/nitrogen, flow and pressure can accurately control.The first electronic balance 2 and the second electronic balance 3 is used to measure the weight change trend of canister in processing procedure and record.In processing procedure, first the oil vapor of mixed gas simulation enters test canister 4.When test canister 4 adsorbs completely, oil vapor can enter auxiliary benchmark canister 5 naturally; When the quality of benchmark canister 5 increases 2g, then stop test, think that test canister 4 adsorbs completely.
Native system only need connect the total interface (adsorption port of upper test canister 4 and benchmark canister 5 by Fig. 2, desorption mouth, atmosphere entry), programmable control circuit 1 passes through the first solenoid valve 61, second solenoid valve 62, 3rd solenoid valve 63, 4th solenoid valve 64, 5th solenoid valve 65, the control that the control realization of the 6th solenoid valve 66 and the 7th solenoid valve 67 moves towards gas, the trend of the mixed gas of butane and nitrogen is: adsorption port 4a---atmosphere entry 4c---the adsorption port 5a of benchmark canister---atmosphere entry 5c of the benchmark canister---outlet port 9 of test canister first entering test canister 4, the complete Automatic Control of overall process completes, gas trend regulates by the automatic control of multiple electromagnetic valve, the real work state of accurate simulation canister on automobile.
Fig. 3 shows the gas flow of automobile canister testing apparatus of the present utility model in the test of canister emulation desorption.In order to the working state of simulation test canister real iterative cycles recycling on automobile, state five emission standard also specify the code of canister desorption test, test requirements document uses (air or nitrogen) with the flow desorption of 25 ± 5L/min test canister, until reach 300 times of canister bed volumes.
Native system only need connect upper test canister 4 and benchmark canister 5 total interface (adsorption port, desorption mouth, atmosphere entry) by Fig. 3, the control of programmable control circuit 1 by moving towards gas the control realization of the first solenoid valve 61, second solenoid valve 62, the 3rd solenoid valve 63, the 4th solenoid valve 64, the 5th solenoid valve 65, the 6th solenoid valve 66 and the 7th solenoid valve 67.Nitrogen will as cleaning gas, the trend of concrete nitrogen is: first nitrogen enters the test atmosphere entry 4c of the canister 4 and atmosphere entry 5c of benchmark canister 5 by threeway 74 simultaneously respectively, and---entering the test desorption mouth 4b of canister and the desorption mouth 5b of benchmark canister respectively---is aggregated into outlet port 9 by threeway 71 simultaneously, the complete Automatic Control of overall process completes, gas trend regulates by the automatic control of multiple electromagnetic valve, the real work state of accurate simulation canister on automobile.The utility model, by the design to system pipeline, electromagnetic valve, can test canister and benchmark canister by desorption simultaneously.
Fig. 4 shows the gas flow of automobile canister testing apparatus of the present utility model in the test of canister initial operating capability.The test of canister initial operating capability is the Test item that state five emission standard increases newly, is also the test function not available for legacy automobile canister testing apparatus.
Concrete test cycle more complicated (detailed testing regulations is shown in HJ/T 390 " Pollutant of Evaporated Gasoline Vehicle control system " 5.2 chapters and sections), key step is repetition (canister adsorption test+canister desorption test) 6 circulations, and record the mean value of the canister quality of adsorption of the 5th, 6 circulation, afterwards in conjunction with canister actual volume value, finally draw canister initial operating capability value.
After this test only need connect upper test canister and benchmark canister total interface (adsorption port, desorption mouth, atmosphere entry) by Fig. 4, system is by automatic operation function repeatedly (the emulation absorption shown in Fig. 2) and function two (the emulation desorption shown in Fig. 3), the brand-new control mode of the pipeline connecting mode brand-new due to the utility model and system solenoid valve makes test canister and benchmark canister to circulate to empty, benchmark canister need not be manually changed, all contents of the test can be automatically completed.
Automobile canister testing apparatus of the present utility model is mainly used in meeting automobile state five total Test of emission standard to canister and requires (the initial operating capability test of the emulation adsorption test of canister, the emulation desorption test of canister, canister), simultaneously can also to the various activated carbon canisters of different automobile types, the applying working condition of simulation canister on vehicle, measures in real time to canister situation.
Compared with prior art, advantage of the present utility model is as follows:
1) test good stability, test accuracy is high: by the Improvement and perfection to gas flow chart, by redesigning system pipeline, control system Rule of judgment, make the trystate of test canister consistent with the running state at automobile, thus substantially increase the stability of test accuracy and data.
2) add " canister actual volume " test function, make it to meet up-to-date state five emission standard.
3) achieve can be recycled of " benchmark canister ", improve test efficiency.
4) demarcate, overhaul conveniently: originally single system decomposition is become two autonomous systems freely switched, be convenient to equipment calibration and maintenance.
Thering is provided previous description of the present disclosure is for making any person skilled in the art all can make or use the disclosure.To be all apparent for a person skilled in the art to various amendment of the present disclosure, and generic principles as defined herein can be applied to other variants and can not depart from spirit or scope of the present disclosure.Thus, the disclosure not intended to be is defined to example described herein and design, but the widest scope consistent with principle disclosed herein and novel features should be awarded.
Claims (3)
1. an automobile canister testing apparatus, it is characterized in that, device comprises programmable control circuit, first electronic balance, second electronic balance, test canister, benchmark canister, wherein testing canister is positioned on the first electronic balance, benchmark canister is positioned on the second electronic balance, the adsorption port of test canister is communicated with the mixing source of the first gas source and the second gas source by the first solenoid valve, the desorption mouth of test canister is communicated with the first threeway by the second solenoid valve, the atmosphere entry of test canister is communicated with the second threeway, the adsorption port of benchmark canister is communicated with the second threeway by the 3rd solenoid valve, the desorption mouth of benchmark canister is communicated with the first threeway by the 4th solenoid valve, the atmosphere entry of benchmark canister is communicated with the 3rd threeway, second threeway is communicated with the 4th threeway, 4th threeway is communicated with the second independent gas source by the 5th solenoid valve, 4th threeway is communicated with the 3rd threeway, 3rd threeway is communicated with the 5th threeway by the 6th solenoid valve, 5th threeway is communicated with the first threeway by the 7th solenoid valve, 5th threeway is communicated with outlet port, programmable control circuit passes through the first solenoid valve, second solenoid valve, 3rd solenoid valve, 4th solenoid valve, 5th solenoid valve, the control of the 6th solenoid valve and the 7th solenoid valve, implement the mixed gas trend in a device of the first gas and the second gas.
2. automobile canister testing apparatus according to claim 1, is characterized in that, at the equal installing gas flowmeter in the first gas source place and the second gas source place.
3. automobile canister testing apparatus according to claim 1, is characterized in that, the first gas is the analog gas of gasoline vapor, and the second gas is cleaning gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420837041.1U CN204436543U (en) | 2014-12-22 | 2014-12-22 | A kind of automobile canister testing apparatus |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420837041.1U CN204436543U (en) | 2014-12-22 | 2014-12-22 | A kind of automobile canister testing apparatus |
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| CN204436543U true CN204436543U (en) | 2015-07-01 |
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| CN201420837041.1U Withdrawn - After Issue CN204436543U (en) | 2014-12-22 | 2014-12-22 | A kind of automobile canister testing apparatus |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105241781A (en) * | 2015-11-13 | 2016-01-13 | 柳州舜泽尔汽车零部件有限公司 | Detection device and detection method for car carbon tank butane working capacity |
| CN105781696A (en) * | 2014-12-22 | 2016-07-20 | 上海机动车检测中心 | Car carbon canister test device |
| CN108120654A (en) * | 2017-12-20 | 2018-06-05 | 东风汽车集团有限公司 | Multi-functional canister pilot system and test method |
| CN109269588A (en) * | 2018-10-17 | 2019-01-25 | 奇瑞汽车股份有限公司 | Carbon canister desorption volume measuring equipment and measuring method |
| CN110376087A (en) * | 2018-04-11 | 2019-10-25 | 堀场仪器（上海）有限公司 | It is a kind of for determining the method and system of the performance rate of activated carbon canister |
| CN117538202A (en) * | 2024-01-10 | 2024-02-09 | 中汽研汽车检验中心（天津）有限公司 | Method and device for distinguishing contribution amounts of different parts to oiling emission |
-
2014
- 2014-12-22 CN CN201420837041.1U patent/CN204436543U/en not_active Withdrawn - After Issue
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105781696A (en) * | 2014-12-22 | 2016-07-20 | 上海机动车检测中心 | Car carbon canister test device |
| CN105781696B (en) * | 2014-12-22 | 2018-03-02 | 上海机动车检测认证技术研究中心有限公司 | A kind of automobile canister experimental rig |
| CN105241781A (en) * | 2015-11-13 | 2016-01-13 | 柳州舜泽尔汽车零部件有限公司 | Detection device and detection method for car carbon tank butane working capacity |
| CN108120654A (en) * | 2017-12-20 | 2018-06-05 | 东风汽车集团有限公司 | Multi-functional canister pilot system and test method |
| CN108120654B (en) * | 2017-12-20 | 2020-09-18 | 东风汽车集团有限公司 | Multifunctional carbon tank test system and test method |
| CN110376087A (en) * | 2018-04-11 | 2019-10-25 | 堀场仪器（上海）有限公司 | It is a kind of for determining the method and system of the performance rate of activated carbon canister |
| CN109269588A (en) * | 2018-10-17 | 2019-01-25 | 奇瑞汽车股份有限公司 | Carbon canister desorption volume measuring equipment and measuring method |
| CN117538202A (en) * | 2024-01-10 | 2024-02-09 | 中汽研汽车检验中心（天津）有限公司 | Method and device for distinguishing contribution amounts of different parts to oiling emission |
| CN117538202B (en) * | 2024-01-10 | 2024-04-09 | 中汽研汽车检验中心（天津）有限公司 | Method and device for distinguishing contribution amounts of different parts to oiling emission |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20161220 Address after: 201805 Shanghai City Yutian Jiading District Anting Town Road No. 68 Patentee after: Shanghai motor vehicle inspection and Certification Technology Research Center Co., Ltd. Address before: 201805 Shanghai City Yutian Jiading District Anting Town Road No. 68 Patentee before: Shanghai Motor Vehicle Inspection Center |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20150701 Effective date of abandoning: 20180302 |
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| AV01 | Patent right actively abandoned |