CN109209684A - A kind of canister desorption detection device - Google Patents
A kind of canister desorption detection device Download PDFInfo
- Publication number
- CN109209684A CN109209684A CN201810862091.8A CN201810862091A CN109209684A CN 109209684 A CN109209684 A CN 109209684A CN 201810862091 A CN201810862091 A CN 201810862091A CN 109209684 A CN109209684 A CN 109209684A
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- Prior art keywords
- canister
- detection device
- desorbed
- programmable controller
- vehicle
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- 238000003795 desorption Methods 0.000 title claims abstract description 57
- 238000001514 detection method Methods 0.000 title claims abstract description 46
- 239000003610 charcoal Substances 0.000 claims abstract description 44
- 238000012360 testing method Methods 0.000 claims abstract description 11
- 238000001179 sorption measurement Methods 0.000 claims abstract description 7
- 230000005611 electricity Effects 0.000 claims description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 30
- 239000000446 fuel Substances 0.000 description 16
- 238000010521 absorption reaction Methods 0.000 description 7
- 238000004140 cleaning Methods 0.000 description 6
- 239000002828 fuel tank Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000001704 evaporation Methods 0.000 description 5
- 230000008020 evaporation Effects 0.000 description 5
- 238000010276 construction Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 239000003344 environmental pollutant Substances 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 231100000719 pollutant Toxicity 0.000 description 4
- 238000012790 confirmation Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- 238000009834 vaporization Methods 0.000 description 2
- 230000008016 vaporization Effects 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 238000003556 assay Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000001925 catabolic effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000013028 emission testing Methods 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 239000008246 gaseous mixture Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000010761 intermediate fuel oil Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 238000011897 real-time detection Methods 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M25/00—Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture
- F02M25/08—Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture adding fuel vapours drawn from engine fuel reservoir
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M25/00—Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture
- F02M25/08—Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture adding fuel vapours drawn from engine fuel reservoir
- F02M25/0836—Arrangement of valves controlling the admission of fuel vapour to an engine, e.g. valve being disposed between fuel tank or absorption canister and intake manifold
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M25/00—Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture
- F02M25/08—Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture adding fuel vapours drawn from engine fuel reservoir
- F02M2025/0845—Electromagnetic valves
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Supplying Secondary Fuel Or The Like To Fuel, Air Or Fuel-Air Mixtures (AREA)
Abstract
The present invention provides a kind of canisters, and detection device is desorbed.Canister desorption detection device is used to detect the adsorption capacity of the charcoal canister of vehicle, including programmable controller, connect with the OBD interface of vehicle, for obtaining the real-time speed of vehicle；Four-way expansion module is electrically connected programmable controller；Wherein, solenoid valve, flowmeter, temperature sensor and pressure sensor are serially connected in the blow vent of charcoal canister, solenoid valve is controlled by programmable controller, and the signal that flowmeter, temperature sensor and pressure sensor will test is transmitted in programmable controller by four-way expansion module.A kind of canister desorption detection device proposed by the present invention can conveniently and efficiently monitor the detachment status of the charcoal canister of vehicle, and can obtain corresponding real-time speed to analyze the working condition of charcoal canister.
Description
Technical field
The present invention relates to vehicle pollutant emission detection and field of environment protection, in particular to a kind of canister desorption detection dress
It sets.
Background technique
With continuing to increase for vehicle fleet size, vehicle discharge is also increasingly severe to the pollution of atmospheric environment.The master of vehicle
Want pollutant from tail gas, followed by crankcase leakage and the evaporation of fuel feed system intermediate fuel oil.Fuel evaporation discharge
Main component is HC, it accounts for 20% or so of the total HC discharge amount of vehicle.In order to improve air quality, countries in the world are all formulated
The vehicle discharge vaporization regulation being increasingly stringenter.As attention degree of the China to environmental protection is continuously increased, a new stage
Motor vehicle environmental protection standard GB18352.6-2016 " light vehicle pollutant emission limit and measurement method (Chinese 6th stage) "
(hereinafter referred " state six ") is issued, and wherein the test method of fuel evaporation test and oiling emission testing is to more stringent
American Standard direction draw close so that test difficulty greatly increase.New discharge standard will the new detection technique of bring promotion,
Also enterprise can be promoted to accelerate to release the pollutant catabolic gene device of new control fuel evaporation discharge, it but will be to the technology of testing agency
Personnel and associated assay devices and control equipment propose more harsh test.
Fuel evaporation control system relies primarily on the ability to work of activated carbon canister to realize the control to discharge vaporization.This kind
The working principle of mode are as follows: when the fuel pressure in vehicle fuel tank is more than fuel vapor valve and activated carbon canister absorption in fuel tank
When the cracking pressure of valve, fuel vapor valve and activated carbon canister absorption valve are opened, and fuel vapor enters activated carbon canister from introductory path
Interior, since the active carbon in charcoal canister has stronger adsorptivity, fuel vapor is adsorbed and is stored in activated carbon canister.So
And the ability of the absorption fuel vapor of activated carbon canister is limited, itself material, geometrical property of active carbon in receptor 1 activity canister,
The factors such as fuel vapor flow and operating temperature influence.Therefore activated carbon canister must simultaneously have certain desorption fuel-steam
Ability (also known as cleaning ability) enables the activated carbon canister for reaching saturation state in absorption fuel-steam to restore adsorption energy again
Power.
In order to confirm vehicle for the cleaning ability of canister, needs to monitor vehicle and be expert under the state of sailing activated carbon canister is taken off
Attached situation starts the time started to desorption, desorption rate per second, desorption total time, desorption total amount, desorption Air Temperature including traveling
The data such as degree and their corresponding automobile's instant velocity, and information above is analyzed.
However, the step of existing market can integrate all measurements, test and analysis without similar devices, main way is to use
The air scoop for crossing normal air flowmeter connection charcoal canister checks the time that desorption starts by artificial mode, if equipment
It supports data export, can further pass through manually to the screening of data, when calculating total similar to desorption time started, desorption
Between, the desorption parameters such as total amount.On the whole, time-consuming and laborious, and measurement result is unreliable.
Summary of the invention
In view of the above problems in the prior art, the invention proposes a kind of canisters, and detection device is desorbed, and conveniently and efficiently supervises
The detachment status of the charcoal canister of measuring car, and corresponding real-time speed can be obtained to analyze the working condition of charcoal canister.
Specifically, the invention proposes a kind of canisters, and detection device, the absorption of the charcoal canister for detecting vehicle is desorbed
Ability, including,
Programmable controller is connect with the OBD interface of the vehicle, for obtaining the real-time speed of the vehicle；
Four-way expansion module is electrically connected the programmable controller；
Wherein, solenoid valve, flowmeter, temperature sensor and pressure sensing are serially connected in the blow vent of the charcoal canister
Device, the solenoid valve are controlled by the programmable controller, and the flowmeter, temperature sensor and pressure sensor will test
Signal be transmitted in the programmable controller by the four-way expansion module.
It according to one embodiment of present invention, further include battery pack, for powering to canister desorption detection device.
It according to one embodiment of present invention, further include voltage transmitter, the programmable controller passes through the voltage
Transmitter detects the electricity of the battery pack.
It according to one embodiment of present invention, further include the display screen being connect with the programmable controller, the display
Screen is CRT display screen or LCD display.
According to one embodiment of present invention, the display screen is touch screen.
According to one embodiment of present invention, the programmable controller passes through the OBD of OBD- II agreement and the vehicle
Interface connection.
According to one embodiment of present invention, the programmable controller is connected by the OBD interface of cable and the vehicle
It connects.
According to one embodiment of present invention, the programmable controller is according to the real-time speed and the work of the vehicle
The desorption flow of the blow vent of property canister, temperature and pressure analyze the cleaning ability of the charcoal canister.
It according to one embodiment of present invention, further include server, the information that the programmable controller can will test
It is transmitted to the server.
According to one embodiment of present invention, further include humidity sensor, be serially connected in the blow vent of the charcoal canister.
Detection device is desorbed in a kind of canister provided by the invention, is serially connected with solenoid valve, flow in the blow vent of charcoal canister
Meter, temperature sensor and pressure sensor, detect the detachment status of charcoal canister, and judge charcoal canister according to real-time speed
Cleaning ability.
It should be appreciated that the general description and the following detailed description more than present invention be all it is exemplary and illustrative,
And it is intended that the present invention as claimed in claim provides further explanation.
Detailed description of the invention
It is to provide further understanding of the invention including attached drawing, they are included and constitute part of this application,
Attached drawing shows the embodiment of the present invention, and plays the role of explaining the principle of the invention together with this specification.In attached drawing:
Fig. 1 is the schematic illustration of canister desorption detection device of the invention.
Fig. 2 is the structural schematic diagram of canister desorption detection device of the invention.
Fig. 3 is the corresponding diagram that flow and real-time speed are desorbed measured by canister desorption detection device of the invention.
Wherein, the above drawings include the following reference numerals:
100 charcoal canister 101 of vehicle
102 fuel tank 103 of engine
200 programmable controller 201 of detection device is desorbed in canister
202 solenoid valve 203 of four-way expansion module
204 temperature sensor 205 of flowmeter
206 battery pack 207 of pressure sensor
208 display screen 209 of voltage transmitter
210 server 300 of transmitter
Specific embodiment
It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase
Mutually combination.
Below in conjunction with the attached drawing in the embodiment of the present application, technical solutions in the embodiments of the present application carries out clear, complete
Site preparation description.Obviously, described embodiments are only a part of embodiments of the present application, instead of all the embodiments.Below
Description only actually at least one exemplary embodiment be it is illustrative, never as to the application and its application or making
Any restrictions.Based on the embodiment in the application, those of ordinary skill in the art are not making creative work premise
Under every other embodiment obtained, shall fall in the protection scope of this application.
It should be noted that term used herein above is merely to describe specific embodiment, and be not intended to restricted root
According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singular
Also it is intended to include plural form, additionally, it should be understood that, when in the present specification using term "comprising" and/or " packet
Include " when, indicate existing characteristics, step, operation, device, component and/or their combination.
Unless specifically stated otherwise, positioned opposite, the digital table of the component and step that otherwise illustrate in these embodiments
Up to the unlimited scope of the present application processed of formula and numerical value.Simultaneously, it should be appreciated that for ease of description, each portion shown in attached drawing
The size divided not is to draw according to actual proportionate relationship.For technology, side known to person of ordinary skill in the relevant
Method and equipment may be not discussed in detail, but in the appropriate case, and the technology, method and apparatus should be considered as authorizing explanation
A part of book.In shown here and discussion all examples, any occurrence should be construed as merely illustratively, and
Not by way of limitation.Therefore, the other examples of exemplary embodiment can have different values.It should also be noted that similar label
Similar terms are indicated in following attached drawing with letter, therefore, once it is defined in a certain Xiang Yi attached drawing, then subsequent attached
It does not need that it is further discussed in figure.
In the description of the present application, it is to be understood that the noun of locality such as " front, rear, top, and bottom, left and right ", " laterally, vertical,
Vertically, orientation or positional relationship indicated by level " and " top, bottom " etc. is normally based on orientation or position shown in the drawings and closes
System is merely for convenience of description the application and simplifies description, and in the absence of explanation to the contrary, these nouns of locality do not indicate that
It must have a particular orientation or be constructed and operated in a specific orientation with the device or element for implying signified, therefore cannot manage
Solution is the limitation to the application protection scope；The noun of locality " inside and outside " refers to inside and outside the profile relative to each component itself.
For ease of description, spatially relative term can be used herein, as " ... on ", " ... top ",
" ... upper surface ", " above " etc., for describing such as a device shown in the figure or feature and other devices or spy
The spatial relation of sign.It should be understood that spatially relative term is intended to comprising the orientation in addition to device described in figure
Except different direction in use or operation.For example, being described as if the device in attached drawing is squeezed " in other devices
It will be positioned as " under other devices or construction after part or construction top " or the device of " on other devices or construction "
Side " or " under other devices or construction ".Thus, exemplary term " ... top " may include " ... top " and
" in ... lower section " two kinds of orientation.The device can also be positioned with other different modes and (is rotated by 90 ° or in other orientation), and
And respective explanations are made to the opposite description in space used herein above.
In addition, it should be noted that, limiting components using the words such as " first ", " second ", it is only for be convenient for
Corresponding components are distinguished, do not have Stated otherwise such as, there is no particular meanings for above-mentioned word, therefore should not be understood as to this
Apply for the limitation of protection scope.In addition, although term used in this application is selected from public term,
It is some terms mentioned in present specification may be that applicant by his or her judgement comes selection, detailed meanings
Illustrate in the relevant portion of description herein.Furthermore, it is desirable that not only by used actual terms, and be also to pass through
Meaning that each term is contained understands the application.
Fig. 1 is the schematic illustration of canister desorption detection device of the invention.The active canister 101 of vehicle 100, activity
The desorption mouth of canister 101 connects engine 102, and the adsorption orifice of charcoal canister 101 connects fuel tank 103.Fuel oil in fuel tank 103
When pressure is more than the cracking pressure of the fuel vapor valve and the absorption valve of activated carbon canister 101 in fuel tank 103, fuel vapor valve and activity
The absorption valve of canister is opened, and fuel vapor enters in activated carbon canister 101 from introductory path, due to the activity in charcoal canister 101
Charcoal has stronger adsorptivity, and fuel vapor is adsorbed and is stored in activated carbon canister 101.Vehicle 100 further includes OBD interface
105, it is able to reflect the real-time speed of vehicle 100.
The blow vent that detection device 200 accesses charcoal canister 101 is desorbed in canister, to detect the desorption stream at the blow vent end
Amount, temperature and pressure.It should be noted that 101 status data of charcoal canister in 100 driving process of vehicle in order to obtain, just
Relevant measurement sensor is connect with charcoal canister 101.Since desorption air-flow enters charcoal canister 101 by blow vent and takes
Gaseous mixture with activated carbon adsorption enters engine 102 by desorption mouth and burns, can concatenated mouth mainly in charcoal canister 101
It is selected between blow vent and desorption mouth.The mixing of activated carbon adsorption is carry since the air that mouth is discharged is desorbed from charcoal canister 101
Gas be easy to cause oil gas to build up if the pipeline of detection device 200 is desorbed by canister for a long time, influences detecting work just
Often running.Therefore canister desorption detection device 200 is finally designed to the blow vent for being connected to charcoal canister 101.
Canister desorption detection device 200 accesses the OBD interface 105 of vehicle 100 also to obtain the real-time speed of vehicle 100.
Fig. 2 is the structural schematic diagram of canister desorption detection device of the invention.As shown, a kind of canister desorption detection dress
200 are set, the adsorption capacity of the charcoal canister 101 for detecting vehicle 100, it includes programmable which, which is desorbed detection device 200,
Controller 201, four-way expansion module 202, solenoid valve 203, flowmeter 204, temperature sensor 205 and pressure sensor 206.
Wherein, programmable controller 201 is connect with the OBD interface 105 of vehicle 100, for obtaining the real-time vehicle of vehicle 100
Speed.
Wherein, the blow vent upper pipeline for being connected to charcoal canister 101 includes import A and outlet B.Pipeline import A and
Solenoid valve 203, flowmeter 204, temperature sensor 205 and pressure sensor 206 are serially connected between outlet B.Solenoid valve 203 is by can
Programmable controller 201 controls.Solenoid valve 203 is mainly used for channel of blinding off a line when storage, places flowmeter 204 and pipeline is extremely grey
Pollution.Flowmeter 204 is used to detect the desorption flow on the blow vent of charcoal canister 101.Temperature sensor 205 and pressure sensing
Device 206 obtains the temperature signal and pressure signal on the blow vent of charcoal canister 101 respectively.Temperature sensor 205 passes through pick-up
Device 210 accesses four-way expansion module 202.The detection obtained by flowmeter 204, temperature sensor 205 and pressure sensor 206
As a result it is transmitted in programmable controller 201 by four-way expansion module 202, is taken off since desorption gas flow temperature will affect canister
Attached efficiency, temperature signal is for reacting the situation；Pressure signal, which is mainly used for confirming in pipeline, causes air-flow stream without extra pressure
Dynamic blocking, to react desorption gas smoothness situation.Four-way expansion module 202 is electrically connected programmable controller 201.
A kind of canister desorption detection device 200 provided by the invention can real-time detection vehicle 100 start after charcoal canister
101 detachment status judges the cleaning ability of charcoal canister 101 in conjunction with real-time speed.
Further, canister desorption detection device 200 further includes battery pack 207.Battery pack 207 is used to be desorbed to canister and examine
Device 200 is surveyed to power.More preferably, canister desorption detection device 200 further includes voltage transmitter 208, and programmable controller 201 is logical
The electricity for crossing the voltage transmitter 208 to detect battery pack 207, to monitor the electricity service condition of battery pack 207 at any time, more
Battery or in time charging are changed, is run with maintaining system safety.
Preferably, canister desorption detection device 200 further includes the display screen 209 connecting with programmable controller 201.Display
Screen 209 is CRT display screen or LCD display.More preferably, display screen 209 is touch screen, is examined to facilitate operation person and canister desorption
It surveys device 200 and forms interaction, input, modify or set certain design parameters, or the chart that display is different.
Preferably, programmable controller 201 is connect by II agreement of OBD- with the OBD interface 105 of vehicle 100.OBD-Ⅱ
Agreement includes VPW, PWM, ISO, KWP 2000, CAN protocol, obtains the real-time speed of vehicle 100 and anti-by II agreement of OBD-
It is fed to programmable controller 201, is corresponded with the real-time desorption flow measured.
Preferably, programmable controller 201 is connect by cable with the OBD interface 105 of vehicle 100.
Preferably, programmable controller 201 is according to the de- of the real-time speed of vehicle 100 and the blow vent of charcoal canister 101
Attached flow, temperature and pressure analyze the cleaning ability of charcoal canister.Fig. 3 is measured by canister desorption detection device of the invention
Desorption flow and real-time speed corresponding diagram.As shown, abscissa is time, unit s；Ordinate is desorption flow, single
Position is l/min.Curve 301 is desorption flow measured by canister desorption detection device；Curve 302 is six curve speed of state.
Preferably, returning back to Fig. 1, it further includes server 300 that detection device 200, which is desorbed, in canister.201 energy of programmable controller
The information that will test in a wired or wireless manner is transmitted to the server 300 of distal end.Server 300 can be to receiving
Data information is stored or is analysed in depth.Server 300 runs the equipment upper computer software, is mainly used for acquisition desorption temperature
Degree, pressure, flow and speed second adopt data, analyzed by algorithm, according to desorption time started of charcoal canister 101, de-
Attached total time total amount etc. data are desorbed.
Preferably, canister desorption detection device 200 further includes humidity sensor, it is serially connected in the blow vent of charcoal canister 101,
For detecting humidity, to accurately reflect the detachment status of charcoal canister 101.
The programmable controller 201 of canister desorption detection device 200 provided by the invention is analyzed by algorithm, according to activity
Desorption total time, total amount etc. data are desorbed in the desorption time started of canister 101, judge in conjunction with the real-time speed of vehicle 100
Whether charcoal canister 101 is normally carried out desorption, and report can be generated.Wherein, the data analysing method of programmable controller 201
Steps are as follows:
1. the time of beginning is desorbed: by judge that first non-zero delivery point confirmation detection start to start to desorption when
Between；
2. desorption rate per second: according to flowmeter obtain the second adopt desorption flow confirmation；
3. total time is desorbed: judging non-zero delivery point, count the confirmation of its elapsed time；
4. total amount is desorbed: judging non-zero delivery point, confirm desorption total amount by integral calculation
Those skilled in the art can be obvious, the above exemplary embodiments of the invention can be carry out various modifications and modification and
Without departing from the spirit and scope of the present invention.Accordingly, it is intended to which present invention covering is made to fall in the appended claims and its equivalence techniques
Modifications of the present invention and modification in aspects.
Claims (10)
1. a kind of canister desorption detection device, the adsorption capacity of the charcoal canister for detecting vehicle, including,
Programmable controller is connect with the OBD interface of the vehicle, for obtaining the real-time speed of the vehicle；
Four-way expansion module is electrically connected the programmable controller；
Wherein, solenoid valve, flowmeter, temperature sensor and pressure sensor, institute are serially connected in the blow vent of the charcoal canister
It states solenoid valve to be controlled by the programmable controller, the letter that the flowmeter, temperature sensor and pressure sensor will test
It number is transmitted in the programmable controller by the four-way expansion module.
2. detection device is desorbed in canister as described in claim 1, which is characterized in that further include battery pack, be used for the charcoal
Detection device power supply is desorbed in tank.
3. detection device is desorbed in canister as claimed in claim 2, which is characterized in that it further include voltage transmitter, it is described to compile
Range controller detects the electricity of the battery pack by the voltage transmitter.
4. detection device is desorbed in canister as described in claim 1, which is characterized in that further include connecting with the programmable controller
The display screen connect, the display screen are CRT display screen or LCD display.
5. detection device is desorbed in canister as claimed in claim 4, which is characterized in that the display screen is touch screen.
6. detection device is desorbed in canister as described in claim 1, which is characterized in that the programmable controller passes through OBD- II
Agreement is connect with the OBD interface of the vehicle.
7. detection device is desorbed in canister as claimed in claim 6, which is characterized in that the programmable controller by cable with
The OBD interface of the vehicle connects.
8. detection device is desorbed in canister as described in claim 1, which is characterized in that the programmable controller is according to the vehicle
Real-time speed and the desorption flow of blow vent of the charcoal canister, temperature and pressure analyze the clear of the charcoal canister
Wash ability.
9. detection device is desorbed in canister as described in claim 1, which is characterized in that it further include server, the programmable control
The information that device processed can will test is transmitted to the server.
10. detection device is desorbed in canister as described in claim 1, which is characterized in that further include humidity sensor, be serially connected in institute
State the blow vent of charcoal canister.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201810862091.8A CN109209684A (en) | 2018-08-01 | 2018-08-01 | A kind of canister desorption detection device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810862091.8A CN109209684A (en) | 2018-08-01 | 2018-08-01 | A kind of canister desorption detection device |
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| CN201810862091.8A Pending CN109209684A (en) | 2018-08-01 | 2018-08-01 | A kind of canister desorption detection device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110823591A (en) * | 2019-10-16 | 2020-02-21 | 黄山市徽州和顺实业有限公司 | Detection system for desorption flow of high-load pipeline of automobile carbon tank |
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| CN105781696A (en) * | 2014-12-22 | 2016-07-20 | 上海机动车检测中心 | Car carbon canister test device |
| CN106769104A (en) * | 2017-02-15 | 2017-05-31 | 中国汽车技术研究中心 | Fuel system canister is desorbed nominal data acquisition system |
| CN208619246U (en) * | 2018-08-01 | 2019-03-19 | 上海机动车检测认证技术研究中心有限公司 | A kind of canister desorption detection device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110823591A (en) * | 2019-10-16 | 2020-02-21 | 黄山市徽州和顺实业有限公司 | Detection system for desorption flow of high-load pipeline of automobile carbon tank |
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