CN117552900A - Active carbon canister desorption device, vehicle and control method - Google Patents
Active carbon canister desorption device, vehicle and control method Download PDFInfo
- Publication number
- CN117552900A CN117552900A CN202311542200.5A CN202311542200A CN117552900A CN 117552900 A CN117552900 A CN 117552900A CN 202311542200 A CN202311542200 A CN 202311542200A CN 117552900 A CN117552900 A CN 117552900A
- Authority
- CN
- China
- Prior art keywords
- active
- desorption
- vehicle
- pipeline
- carbon canister
- 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.)
- Pending
Links
- 238000003795 desorption Methods 0.000 title claims abstract description 128
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 105
- 229910052799 carbon Inorganic materials 0.000 title claims abstract description 95
- 238000000034 method Methods 0.000 title claims abstract description 30
- 238000001514 detection method Methods 0.000 claims description 23
- 239000000446 fuel Substances 0.000 claims description 23
- 239000002828 fuel tank Substances 0.000 claims description 7
- 238000004891 communication Methods 0.000 claims description 3
- 239000003610 charcoal Substances 0.000 abstract description 14
- 239000003344 environmental pollutant Substances 0.000 abstract description 9
- 231100000719 pollutant Toxicity 0.000 abstract description 9
- 239000007789 gas Substances 0.000 description 17
- 230000008569 process Effects 0.000 description 8
- 239000000306 component Substances 0.000 description 3
- 239000000356 contaminant Substances 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 239000004215 Carbon black (E152) Substances 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 238000006731 degradation reaction Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000003912 environmental pollution Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 230000036541 health Effects 0.000 description 2
- 229930195733 hydrocarbon Natural products 0.000 description 2
- 150000002430 hydrocarbons Chemical class 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008439 repair process Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- 239000012855 volatile organic compound Substances 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 231100001261 hazardous Toxicity 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000002341 toxic gas Substances 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
- F02M25/0809—Judging failure of purge control system
-
- 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
- F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
- F02M35/10—Air intakes; Induction systems
- F02M35/10209—Fluid connections to the air intake system; their arrangement of pipes, valves or the like
- F02M35/10222—Exhaust gas recirculation [EGR]; Positive crankcase ventilation [PCV]; Additional air admission, lubricant or fuel vapour admission
-
- 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
-
- 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
- Y02T10/12—Improving ICE efficiencies
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
Abstract
The invention provides an active carbon canister desorption device, a vehicle and a control method. The active charcoal canister desorption device includes: an air intake line; the inlet end of the turbocharger is communicated with the outlet end of the air inlet pipeline; the inlet end of the intercooler is communicated with the outlet end of the turbocharger; the intercooling pipeline is communicated with an air inlet manifold of the engine, and the air inlet pipeline, the turbocharger, the intercooler and the intercooling pipeline are sequentially communicated to form a turbocharger passage; the active desorption pump, the exit end of active desorption pump and the entrance point intercommunication of carbon canister, the exit end of carbon canister passes through the intake manifold of the engine of pipe connection, is provided with the solenoid valve on the pipeline of exit end and intake manifold intercommunication of carbon canister, when the solenoid valve is not circular telegram, the solenoid valve opens, and the active desorption pump has the operating condition to the carbon canister desorption, can realize like this quick, high-efficient come out the pollutant desorption that will adsorb on the active carbon, has promoted desorption efficiency.
Description
Technical Field
The invention relates to the technical field of automobile steam emission control systems, in particular to an active activated carbon canister desorption device, a vehicle and a control method.
Background
With the development of technology and the continuous improvement of human awareness of energy conservation and emission reduction, environmental protection departments in various countries have put more and more stringent emission requirements on automobiles. The current emission regulations in China are GB 18352.6-2016 light automobile pollutant emission limit and measuring method (Chinese sixth stage), and very severe requirements on evaporative pollutant emission are put forward in the regulations, mainly relating to three aspects: and (3) fault leakage of pollutants, evaporative pollutants and fuel systems in the refueling process.
For the three aspects, the host factory mainly adopts the following measures:
(1) And (5) adding pollutants in the oiling process. The hydrocarbon emissions generated during fueling are collected by employing an on-board fueling process contaminant collection system (ORVR) on-board the vehicle.
(2) The contaminants are evaporated. The fuel system is characterized in that the fuel system is provided with an active carbon tank, the active carbon tank is used for absorbing oil vapor generated by the fuel system (the process is called active carbon tank absorption), the engine is used for sucking the oil vapor into the engine to burn (the process is called active carbon tank desorption), and the hydrocarbon emission in the using process of the vehicle is reduced.
The active carbon tank desorption is mainly divided into active desorption and passive desorption. Active desorption is with high costs but desorption efficiency is high, and passive desorption is with low costs but desorption efficiency is low.
(3) And the fuel system fails and leaks. The tightness of the fuel system is detected periodically by detecting the tightness of the fuel system installed on the vehicle, so that the leakage problem of the fuel system is detected and found in time, and the emission of carbon and hydrogen is reduced.
The fuel system tightness detection system mainly comprises: the method comprises the following steps of active detection after parking, passive detection during idling and passive detection after parking.
At present, a passive desorption scheme is mainly applied to the market, but the efficiency of the passive desorption scheme is lower.
Disclosure of Invention
The invention mainly aims to provide an active carbon canister desorption device, a vehicle and a control method, which are used for solving the problem of low desorption efficiency of a passive carbon canister in the prior art.
In order to achieve the above object, according to one aspect of the present invention, there is provided an active carbon canister desorption apparatus. The active charcoal canister desorption device includes: an air intake line; the inlet end of the turbocharger is communicated with the outlet end of the air inlet pipeline; the inlet end of the intercooler is communicated with the outlet end of the turbocharger; the intercooling pipeline is communicated with an air inlet manifold of the engine, and the air inlet pipeline, the turbocharger, the intercooler and the intercooling pipeline are sequentially communicated to form a turbocharger passage; the fuel system comprises an active desorption pump and a carbon tank, wherein the outlet end of the active desorption pump is communicated with the inlet end of the carbon tank, the outlet end of the carbon tank is connected with an air inlet manifold of the engine through a pipeline, an electromagnetic valve is arranged on the pipeline, communicated with the air inlet manifold, of the outlet end of the carbon tank, and when the electromagnetic valve is electrified, the electromagnetic valve is opened, and the active desorption pump has a working state of desorbing the carbon tank.
Further, the active carbon canister desorption device also comprises an air filter which is arranged on the air inlet pipeline.
Further, the active carbon canister desorption device further comprises a throttle valve, and the throttle valve is arranged on a connecting passage between the intercooling rear pipeline and the intake manifold.
Further, the active carbon canister desorption device also comprises an ash filter which is arranged on the air inlet side of the carbon canister.
Further, the turbocharger is connected with the intercooler through a post-supercharging pipeline.
Further, the active carbon canister desorption device also comprises a fuel tank, and the fuel tank is communicated with the carbon canister through a pipeline.
Further, when the active desorption pump is in a working state, the active desorption pump pumps air, and the active desorption pump drives the air to enter oil vapor in the carbon tank into the air inlet manifold through the electromagnetic valve.
According to another aspect of the present invention, there is provided a vehicle including an active canister desorption apparatus as described above.
According to another aspect of the present invention, there is provided a control method of a vehicle for controlling the vehicle described above, the control method including: acquiring the working condition state of the vehicle, wherein the working condition state of the vehicle comprises: the vehicle is in a parking state and in a running state; when the vehicle is in a parking state, and the temperature of the vehicle is in a preset range, the electromagnetic valve is controlled to be electrified, so that the valve of the electromagnetic valve is closed, and the active desorption pump is controlled to detect the tightness of the active carbon canister desorption device.
Further, control initiative desorption pump carries out the leakproofness to initiative charcoal jar desorption device and detects, includes: controlling an active desorption pump to detect pressure drop in the fuel system; judging whether the pressure drop exceeds a calibration value range or not; in the event that a pressure drop is determined to exceed the calibrated range, the fuel system develops a leak and the vehicle meter sounds an alarm.
By adopting the technical scheme of the invention, the air inlet pipeline, the turbocharger, the intercooler and the intercooling pipeline are sequentially communicated to form the turbo-charging passage, the active desorption pump, the carbon tank and the air inlet manifold of the engine are sequentially communicated to form the active carbon tank desorption pipeline, the electromagnetic valve is arranged on the pipeline with the outlet end of the carbon tank communicated with the air inlet manifold, so that the device has a simple structure, saves cost, can rapidly and efficiently desorb pollutants adsorbed on active carbon by adopting the active desorption pump, and improves desorption efficiency.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention. In the drawings:
fig. 1 shows a schematic structural view of an active carbon canister desorption apparatus according to the present invention;
fig. 2 shows a flow chart of a control method of a vehicle according to the invention.
Wherein the above figures include the following reference numerals:
1. an air cleaner; 2. an air intake line; 3. a turbocharger;
4. a pressurized pipeline; 5. an intercooler; 6. an intercooling post-pipeline;
7. an engine; 8. an intake manifold; 9. a throttle valve;
10. ash filtering; 11. an active desorption pump; 12. a carbon tank;
13. an electromagnetic valve; 14. fuel tank.
Detailed Description
It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other. The invention will be described in detail below with reference to the drawings in connection with embodiments.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.
It should be noted that the terms "first," "second," and the like in the description and claims of the present application and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the application described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
Exemplary embodiments according to the present application will now be described in more detail with reference to the accompanying drawings. These exemplary embodiments may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. It should be understood that these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of these exemplary embodiments to those skilled in the art, that in the drawings, it is possible to enlarge the thicknesses of layers and regions for clarity, and that identical reference numerals are used to designate identical devices, and thus descriptions thereof will be omitted.
The charcoal canister in a vehicle is an important component for a vehicle emission control system. It is mainly composed of active carbon and has high adsorption capacity.
The active carbon tank has the main function of absorbing and storing harmful gases and steam discharged by vehicles and preventing the harmful gases and steam from entering the atmosphere to cause air pollution. The canister may adsorb and store a range of hazardous gases such as fuel vapors, volatile Organic Compounds (VOCs) in exhaust gases, and some toxic gases. It guides these harmful gases and vapors into the charcoal canister through the exhaust system of the vehicle, and then adsorbs them on the charcoal by adsorption, purifying the emissions, making them more environmentally friendly. In general, the canister plays an important role in purifying exhaust gas and reducing emission of harmful gas in vehicle emission control, and helps to protect the environment and improve air quality.
Referring to fig. 1, an active carbon canister desorption apparatus is provided according to an embodiment of the present invention.
Specifically, as shown in fig. 1, the active carbon canister desorption apparatus includes: an air intake line 2; the turbocharger 3, the inlet end of the turbocharger 3 communicates with the outlet end of the intake pipe 2; an intercooler 5, the inlet end of the intercooler 5 is communicated with the outlet end of the turbocharger 3; an intercooling post-pipeline 6, wherein the intercooling post-pipeline 6 is communicated with an intake manifold 8 of an engine 7, and the intake pipeline 2, the turbocharger 3, the intercooler 5 and the intercooling post-pipeline 6 are sequentially communicated to form a turbocharging passage; the fuel system comprises an active desorption pump 11 and a carbon tank, wherein the outlet end of the active desorption pump 11 is communicated with the inlet end of the carbon tank 12, the outlet end of the carbon tank 12 is connected with an air inlet manifold 8 of the engine 7 through a pipeline, an electromagnetic valve 13 is arranged on the pipeline, communicated with the air inlet manifold 8, of the outlet end of the carbon tank 12, when the electromagnetic valve 13 is electrified, the electromagnetic valve 13 is opened, and the active desorption pump 11 has a working state of desorbing the carbon tank 12.
In this embodiment, through with intake pipe 2, turbo charger 3, intercooler 5, intercooling back pipeline 6 communicate in proper order in order to form the turbo charging passageway, initiative desorption pump 11, charcoal jar 12, engine 7's intake manifold 8 communicates in proper order and forms the charcoal jar desorption pipeline, solenoid valve 13 sets up on the pipeline that the exit end of charcoal jar 12 and intake manifold 8 communicate, set up simple structure like this, save the cost, adopt initiative desorption pump 11 can realize quick, high-efficient come out with the pollutant desorption that adsorbs on the active carbon, desorption efficiency has been promoted.
Further, the active carbon canister desorption device further comprises an air filter 1, and the air filter 1 is arranged on the air inlet pipeline 2. An air cleaner is a device for filtering contaminants in air.
Further, the active canister desorption device further comprises a throttle valve 9, and the throttle valve 9 is arranged on a connecting passage between the intercooling rear pipeline 6 and the intake manifold 8. A throttle Valve (throttle Valve) is a component in an engine that controls the time and amount of Intake air entering cylinders. Its main function is to open at engine timing, allowing the mixture (mixture of fuel and air) to enter the cylinder for combustion. The throttle valve is generally made of metal, has a disk shape, and is controlled to be opened and closed by a link and a cam.
Further, the active canister desorption apparatus further includes an ash filter 10, and the ash filter 10 is disposed at an air intake side of the canister 12.
Further, the turbocharger 3 is connected to an intercooler 5 through a post-supercharging line 4.
Further, the active canister desorption apparatus further includes a fuel tank 14, and the fuel tank 14 is in communication with the canister 12 through a pipe.
Further, when the active desorption pump 11 is in a working state, the active desorption pump 11 sucks air into the air inlet pipeline 2, and the active desorption pump 11 drives the air to enter oil vapor in the carbon tank 12 into the air inlet manifold 8 through the electromagnetic valve 13.
According to another aspect of the present invention, there is provided a vehicle including an active canister desorption apparatus as described above. Active charcoal jar desorption device includes: an air intake line 2; the turbocharger 3, the inlet end of the turbocharger 3 communicates with the outlet end of the intake pipe 2; an intercooler 5, the inlet end of the intercooler 5 is communicated with the outlet end of the turbocharger 3; an intercooling post-pipeline 6, wherein the intercooling post-pipeline 6 is communicated with an intake manifold 8 of an engine 7, and the intake pipeline 2, the turbocharger 3, the intercooler 5 and the intercooling post-pipeline 6 are sequentially communicated to form a turbocharging passage; the active desorption pump 11, the exit end of the active desorption pump 11 is communicated with the inlet end of the carbon tank 12, the exit end of the carbon tank 12 is connected with the air inlet manifold 8 of the engine 7 through a pipeline, the electromagnetic valve 13 is arranged on the pipeline of the exit end of the carbon tank 12 communicated with the air inlet manifold 8, when the electromagnetic valve 13 is not electrified, the electromagnetic valve 13 is opened, and the active desorption pump 11 has a working state of desorbing the carbon tank 12. Through with intake line 2, turbo charger 3, intercooler 5, intercooling back pipeline 6 communicate in proper order in order to form the turbo charging passageway, initiative desorption pump 11, charcoal jar 12, engine 7's intake manifold 8 communicates in proper order and forms activated charcoal jar desorption pipeline, solenoid valve 13 sets up on the pipeline of the exit end of charcoal jar 12 and intake manifold 8 intercommunication, set up simple structure like this, save the cost, adopt initiative desorption pump 11 can realize desorbing out the pollutant of adsorbing on the active carbon fast, high-efficiently, promoted desorption efficiency.
As shown in fig. 2, according to another aspect of the present invention, there is provided a control method of a vehicle for controlling the vehicle, the control method including the steps of:
step S11: acquiring the working condition state of the vehicle, wherein the working condition state of the vehicle comprises: the vehicle is in a parking state and in a running state;
step S12: when the vehicle is in a parking state and the temperature of the vehicle is in a preset range, the electromagnetic valve 13 is controlled to be electrified, so that the valve of the electromagnetic valve 13 is closed, and the active desorption pump 11 is controlled to detect the tightness of the active carbon canister desorption device.
Through the steps, the active desorption pump performs tightness detection on the active carbon canister desorption device when the vehicle is parked, so that good tightness of the active carbon canister system is ensured, and leakage of harmful gas is prevented. An activated carbon canister is a device for adsorbing and storing harmful gases in a fuel system of a vehicle. When the vehicle is parked, the engine is turned off and the pressure in the fuel system may decrease. At this time, if the canister system has a problem of sealability, there is a possibility that harmful gas leaks out of the canister, causing environmental pollution and degradation of air quality. The active desorption pump can detect any leakage point in the tank body and the pipeline by detecting the tightness of the active carbon tank system, so that the sealing performance of the system is ensured to be good. If leakage is detected, the system can give an alarm to remind the car owner or maintenance personnel to repair, and harmful gas leakage is avoided. Therefore, the active desorption pump performs tightness detection on the active carbon canister desorption device when the vehicle is parked, so that the safety of the environment and the air quality is ensured, and the damage to the human health and the environment caused by harmful gas leakage is prevented.
Further, the control of the active desorption pump 11 for performing tightness detection on the active carbon canister desorption apparatus includes: controlling the active desorption pump 11 to detect the pressure drop in the fuel system; judging whether the pressure drop exceeds a calibration value range or not; in the event that a pressure drop is determined to exceed the calibrated range, the fuel system develops a leak and the vehicle meter sounds an alarm.
According to another aspect of the present invention, there is provided a control device of a vehicle. The control device includes: the system comprises an acquisition module, a control module and a control module, wherein the acquisition module is used for acquiring the working condition state of the vehicle, and the working condition state of the vehicle comprises: the vehicle is in a parking state and in a running state; and the control module is used for controlling the electromagnetic valve 13 to be electrified when the vehicle is in a parking state and the temperature of the vehicle is in a preset range, so that the valve of the electromagnetic valve 13 is closed, and controlling the active desorption pump 11 to detect the tightness of the active carbon canister desorption device.
According to another aspect of the present invention, there is provided a computer-readable storage medium including a stored program, wherein a device in which the computer-readable storage medium is controlled to execute the control method of the vehicle described above when the program is run. The control method of the vehicle is used for controlling the vehicle and comprises the following steps:
step S11: acquiring the working condition state of the vehicle, wherein the working condition state of the vehicle comprises: the vehicle is in a parking state and in a running state;
step S12: when the vehicle is in a parking state and the temperature of the vehicle is in a preset range, the electromagnetic valve 13 is controlled to be electrified, so that the valve of the electromagnetic valve 13 is closed, and the active desorption pump 11 is controlled to detect the tightness of the active carbon canister desorption device.
Through the steps, the active desorption pump performs tightness detection on the active carbon canister desorption device when the vehicle is parked, so that good tightness of the active carbon canister system is ensured, and leakage of harmful gas is prevented. An activated carbon canister is a device for adsorbing and storing harmful gases in a fuel system of a vehicle. At this time, if the canister system has a problem of sealability, there is a possibility that harmful gas leaks out of the canister, causing environmental pollution and degradation of air quality. The active desorption pump can detect any leakage point in the tank body and the pipeline by detecting the tightness of the active carbon tank system, so that the sealing performance of the system is ensured to be good. If leakage is detected, the system can give an alarm to remind the car owner or maintenance personnel to repair, and harmful gas leakage is avoided. Therefore, the active desorption pump performs tightness detection on the active carbon canister desorption device when the vehicle is parked, so that the safety of the environment and the air quality is ensured, and the damage to the human health and the environment caused by harmful gas leakage is prevented.
According to another aspect of the present invention, there is provided a processor for running a program, wherein the program executes the control method of the vehicle described above when running.
The invention is based on a passive active carbon canister desorption system and adopts the improvement of active tightness detection during parking.
The passive active carbon tank desorption system designs two sets of desorption pipelines according to the working condition of the turbocharger, and the two sets of desorption pipelines respectively comprise a carbon tank electromagnetic valve, a first one-way valve, a second one-way valve, a venturi valve, a pipeline and the like.
When the turbocharger is not started, the engine intake manifold is under negative pressure, and oil vapor from the carbon tank is sucked into the engine intake manifold after passing through the electromagnetic valve of the carbon tank and the second one-way valve.
When the turbocharger is started, oil vapor from the canister cannot directly enter the engine intake manifold through the solenoid valve, the double check valve, and then the engine intake manifold due to positive pressure in the engine intake manifold. Under the working condition, under the drive of high-pressure air flow from a rear pipeline of the intercooler, oil vapor from the carbon tank is sucked into an air inlet connecting pipe through a carbon tank electromagnetic valve and a first one-way valve under the action of a venturi valve and finally enters an engine air inlet manifold.
The active tightness detection system during parking is respectively composed of an electromagnetic on-off valve, a tightness detection module, a pressure sensor and the like.
When the vehicle works, the electromagnetic on-off valve is not electrified, the valve is in a long-pass state, and the tightness detection module does not detect.
When the vehicle is stopped and the related conditions are met, the electromagnetic on-off valve is electrified, the valve is in a closed state, and the tightness detection module is started to detect. And judging leakage when the pressure drop in the system exceeds a calibration value range, and alarming at the instrument.
The arrangement of the parts is greatly simplified, the arrangement difficulty is greatly reduced, the integration level is improved, and the method is mainly characterized in that:
1) The multifunctional active desorption pump is added, so that the functions of active carbon tank desorption, flow control, tightness detection and the like can be realized.
2) And a charcoal tank electromagnetic valve is canceled, and the function of the charcoal tank electromagnetic valve is realized by an active desorption pump.
3) And the tightness detection module is canceled, and the function of the tightness detection module is realized by an active desorption pump.
4) The pressure sensor is eliminated.
5) The venturi valve and the pipeline are canceled.
6) The double check valve is eliminated.
5) And an electromagnetic on-off valve is reserved.
The invention adopts the active desorption and active tightness detection principle after stopping of the active carbon tank, redesigns the original system principle, integrates the active desorption element, the flow control element and the tightness detection element into one place, greatly simplifies the system arrangement and the system principle, and has the following key points and mainly generated benefits:
(1) the active desorption pump is a core component of the system, integrates three functions of active desorption, flow control and tightness detection, and integrates the original dispersed functions into one place.
(2) The electromagnetic short-valve position must be in the original carbon canister electromagnetic position.
(3) The position of the multifunctional desorption pump is required to be positioned on the original carbon tank through atmospheric pipe, and the tail end of the carbon tank through atmospheric pipe is required to be provided with an ash filter.
(4) The check valve, the venturi valve, a part of pipelines, quick connectors and the like are omitted, so that the arrangement of pipelines in an engine cabin is greatly simplified, and the arrangement is more convenient.
(5) And the carbon tank electromagnetic valve is canceled, so that the problem of pulse noise during desorption of the carbon tank electromagnetic valve is effectively avoided.
(6) The pressure sensor and the tightness detection module are canceled, the functions of the pressure sensor and the tightness detection module are concentrated in the multifunctional desorption pump, and the integration level of parts is improved.
(7) The method is favorable for realizing the platform and universal design of parts.
(8) The invention adopts fewer parts, reduces the complexity of the scheme and improves the reliability of the scheme.
Spatially relative terms, such as "above … …," "above … …," "upper surface at … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial location relative to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the exemplary term "above … …" may include both orientations of "above … …" and "below … …". The device may also be positioned in other different ways (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
In addition to the foregoing, references in the specification to "one embodiment," "another embodiment," "an embodiment," etc., mean that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment described in general terms in the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment. Further, when a particular feature, structure, or characteristic is described in connection with any embodiment, it is intended that such feature, structure, or characteristic be implemented within the scope of the invention.
In the foregoing embodiments, the descriptions of the embodiments are emphasized, and for parts of one embodiment that are not described in detail, reference may be made to related descriptions of other embodiments.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. An active activated carbon canister desorption apparatus, comprising:
an air intake pipe (2);
a turbocharger (3), an inlet end of the turbocharger (3) being in communication with an outlet end of the intake conduit (2);
an intercooler (5), wherein the inlet end of the intercooler (5) is communicated with the outlet end of the turbocharger (3);
the intercooling post-pipeline (6), the intercooling post-pipeline (6) is communicated with an air inlet manifold (8) of an engine (7), and the air inlet pipeline (2), the turbocharger (3), the intercooler (5) and the intercooling post-pipeline (6) are sequentially communicated to form a turbocharging passage;
the fuel system comprises an active desorption pump (11) and a carbon tank (12), wherein the outlet end of the active desorption pump (11) is communicated with the inlet end of the carbon tank (12), the outlet end of the carbon tank (12) is connected with an air inlet manifold (8) of the engine (7) through a pipeline, an electromagnetic valve (13) is arranged on the pipeline, communicated with the air inlet manifold (8), of the outlet end of the carbon tank (12), the electromagnetic valve (13) is opened when the electromagnetic valve (13) is electrified, and the active desorption pump (11) has a working state of desorbing the carbon tank (12).
2. Active carbon canister desorption device according to claim 1, characterized in that the active carbon canister desorption device further comprises an air filter (1), which air filter (1) is arranged on the air intake line (2).
3. Active carbon canister desorption device according to claim 1, characterized in that it further comprises a throttle valve (9), said throttle valve (9) being arranged on the connection path of said post-charge air conduit (6) and said intake manifold (8).
4. Active carbon canister desorption device according to claim 1, characterized in that the active carbon canister desorption device further comprises an ash filter (10), the ash filter (10) being arranged on the intake side of the carbon canister (12).
5. Active carbon canister desorption device according to claim 1, characterized in that the turbocharger (3) is connected with the intercooler (5) via a post-boost line (4).
6. Active canister desorption device according to claim 1, characterized in that it further comprises a fuel tank (14), said fuel tank (14) being in communication with said canister (12) via a pipe.
7. Active carbon canister desorption device according to claim 1, characterized in that when the active desorption pump (11) is in the working state, the active desorption pump (11) sucks air, and the active desorption pump (11) drives air to enter oil vapor in the carbon canister (12) into the intake manifold (8) through the electromagnetic valve (13).
8. A vehicle comprising an active carbon canister desorption apparatus as claimed in any one of claims 1 to 7.
9. A control method of a vehicle for controlling the vehicle according to claim 8, the control method comprising:
acquiring the working condition state of the vehicle, wherein the working condition state of the vehicle comprises: the vehicle is in a parking state and in a running state;
when the vehicle is in a parking state and the temperature of the vehicle is in a preset range, the electromagnetic valve (13) is controlled to be not electrified, so that the valve of the electromagnetic valve (13) is closed, and the active desorption pump (11) is controlled to detect the tightness of the active carbon canister desorption device.
10. The control method of a vehicle according to claim 9, characterized by controlling an active desorption pump (11) to perform tightness detection of an active canister desorption device, comprising:
controlling the active desorption pump (11) to detect a pressure drop in the fuel system;
judging whether the pressure drop exceeds a calibration value range or not;
in the event that the pressure drop is determined to exceed the calibrated range, the fuel system develops a leak and a vehicle meter sounds an alarm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311542200.5A CN117552900A (en) | 2023-11-17 | 2023-11-17 | Active carbon canister desorption device, vehicle and control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311542200.5A CN117552900A (en) | 2023-11-17 | 2023-11-17 | Active carbon canister desorption device, vehicle and control method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117552900A true CN117552900A (en) | 2024-02-13 |
Family
ID=89816224
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311542200.5A Pending CN117552900A (en) | 2023-11-17 | 2023-11-17 | Active carbon canister desorption device, vehicle and control method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117552900A (en) |
-
2023
- 2023-11-17 CN CN202311542200.5A patent/CN117552900A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9297717B2 (en) | Venting system, in particular for a fuel tank | |
| CN203809153U (en) | Multipath ejector purging system | |
| US9212633B2 (en) | Device for selectively regenerating or performing tank leakage diagnosis of a tank ventilation system | |
| US7373930B1 (en) | Multi-port check-valve for an evaporative fuel emissions system in a turbocharged vehicle | |
| CN104033291A (en) | Multi-path purge ejector system | |
| CN111622827A (en) | Gasoline particle catcher regenerating unit and vehicle | |
| CN101648514A (en) | Fuel supply system of double-fuel automobile | |
| CN110080912B (en) | Active desorption gasoline vapor and secondary injection system and method | |
| CN206647187U (en) | Supercharging gasoline engine Venturi tube fuel vapor desorption apparatus | |
| CN117552900A (en) | Active carbon canister desorption device, vehicle and control method | |
| CN106762175B (en) | Vehicle-mounted oil filling gas recovery system for oil, control unit and automobile | |
| CN202031726U (en) | Gas burning system for car | |
| EP2171248B1 (en) | Evaporative emission canister purge actuation monitoring system | |
| US6446615B2 (en) | Method and arrangement for detecting icing in pumps utilized in the diagnosis of tank leakage in motor vehicles | |
| US6279547B1 (en) | Fuel vapor emission control system employing fuel vapor tank | |
| US10883451B2 (en) | Fuel vapor treatment apparatus | |
| CN113775440A (en) | Fuel evaporation control system | |
| KR100213741B1 (en) | Output apparatus for evaporating gas when inputting the gasoline | |
| KR20220083168A (en) | Purge sytem of fuel vapor and method thereof | |
| CN107061062B (en) | Fuel-steam control system and control method | |
| CN111997795A (en) | Vehicle fuel evaporation leakage diagnostic device | |
| CN201554574U (en) | Fuel evaporation and desorption control device | |
| CN201351547Y (en) | Charcoal canister for gas filtration of car and motorcycle | |
| CN2229529Y (en) | Activated carbon absorption vacuum control type controller for fuel oil vaporzation pollutant | |
| KR100993670B1 (en) | Device for intercepting HC gas from canister |
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 |