CN113803192A - Vehicle-mounted active carbon tank desorption system of fuel system - Google Patents
Vehicle-mounted active carbon tank desorption system of fuel system Download PDFInfo
- Publication number
- CN113803192A CN113803192A CN202111110786.9A CN202111110786A CN113803192A CN 113803192 A CN113803192 A CN 113803192A CN 202111110786 A CN202111110786 A CN 202111110786A CN 113803192 A CN113803192 A CN 113803192A
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- carbon
- carbon tank
- tank
- desorption
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- 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
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- 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
- F02M25/0854—Details of the absorption canister
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- 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
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- 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)
- Supplying Secondary Fuel Or The Like To Fuel, Air Or Fuel-Air Mixtures (AREA)
Abstract
The invention discloses a carbon tank desorption system of a vehicle-mounted active fuel system, which comprises an oil tank, wherein the oil tank is provided with the carbon tank desorption system, and a carbon tank is arranged in the carbon tank desorption system; the carbon-hydrogen concentration detection module is arranged on the carbon tank desorption system and used for detecting the concentration of carbon-hydrogen in the carbon tank; the carbon tank desorption electromagnetic valve is arranged between the carbon tank and the desorption pipeline of the air inlet manifold; when the carbon-hydrogen concentration detection module detects that the carbon-hydrogen concentration in the carbon tank exceeds a set range, the carbon-hydrogen tank desorption electromagnetic valve is opened, carbon-hydrogen molecules in the carbon tank are desorbed to an engine for combustion by the vacuum of the air inlet manifold, and the engine combusts to desorb the carbon tank; the carbon-hydrogen concentration detection module can be arranged in the carbon tank, the ash filter, a pipeline between the carbon tank and the ash filter, the ash filter air pipe and the like, calibration is not needed to be carried out on the desorption working condition of the carbon tank of the fuel system, the carbon tank-ash filter carbon-ash concentration detection module can be popularized in a platform mode, and the calibration workload and the calibration cost are reduced.
Description
Technical Field
The invention relates to a carbon tank desorption system, in particular to a carbon tank desorption system of a vehicle-mounted active fuel system.
Background
In order to cope with global climate change, China pays more and more attention to the fields of carbon neutralization and energy conservation and emission reduction, and the regulation made for automobile emission is more and more strict, and the former state vigorously pushes small-displacement automobiles and new energy automobiles (including pure electric vehicles, hybrid vehicles, hydrogen energy sources and the like) to meet the requirement of carbon neutralization and carbon peak reaching.
In the field of new energy automobiles, pure electric and hydrogen energy automobile models are limited by market and technology at present, so that the consideration of terminal customers on the aspects of whole automobile endurance and safety cannot be met in a short time, and the fact that the models of small-displacement automobiles and new energy hybrid automobiles are the main force in the automobile market in a medium-short period is determined. However, small-displacement automobiles and new energy hybrid vehicles are limited in the field of fuel system emission by small-displacement engines aiming at the problems that a carbon tank is small in desorption volume and cannot be desorbed in a pure electric driving mode respectively, and even if the evaporation emission requirement of a fuel system can be met under the working condition of national regulation requirement through whole vehicle calibration, the evaporation emission requirement of the fuel system cannot be met under the whole vehicle full working condition.
At present, both traditional fuel vehicles and new energy hybrid vehicles adopt a passive desorption mode after calibration. At present, a passive desorption mode is generally written into a vehicle-mounted ECU program according to a calibration working condition in the market, the working condition time point of an engine desorption carbon tank is written into the vehicle-mounted ECU program, when a vehicle reaches the calibrated carbon tank desorption working condition, a carbon tank desorption electromagnetic valve is opened, and the engine starts to desorb the carbon tank (a new energy hybrid vehicle type engine starts to desorb the carbon tank). This kind of passive form carbon tank desorption mode has two main drawbacks:
1. the calibration requirement for the whole vehicle is high, each vehicle type and the engine need to be calibrated, the platform expansion cannot be carried out, and the calibration cost is high.
2. The whole vehicle full-working-condition mode cannot be met, the working conditions specified by the regulations can be met through calibration, but the special working conditions cannot be met.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a carbon tank desorption system of a vehicle-mounted active fuel system, which can actively monitor the hydrocarbon concentration in a carbon tank, realize the function of actively desorbing the carbon tank and ensure that the whole vehicle completely meets the national regulation emission requirement in a full working condition mode.
In order to achieve the purpose, the invention adopts the technical scheme that: an on-vehicle active fuel system carbon tank desorption system includes:
the device comprises an oil tank, a carbon tank desorption system and a control system, wherein the oil tank is provided with the carbon tank desorption system, the carbon tank desorption system is connected with an engine, and a carbon tank is arranged in the carbon tank desorption system;
the carbon-hydrogen concentration detection module is arranged on the carbon tank desorption system and used for detecting the concentration of carbon-hydrogen molecules in the carbon tank;
the carbon tank desorption electromagnetic valve is arranged on a desorption pipeline between the carbon tank and the air inlet manifold;
when the hydrocarbon concentration detection module detects that the concentration of hydrocarbon molecules in the carbon tank exceeds a set range, the carbon tank desorption electromagnetic valve is opened, and the hydrocarbon molecules in the carbon tank are desorbed to the engine in a vacuum mode by the air inlet manifold and are combusted.
Further, the carbon tank desorption system comprises a carbon tank desorption assembly and an ash filter assembly;
the carbon tank desorption assembly comprises a carbon tank, and the carbon tank is provided with a carbon tank air inlet, a carbon tank desorption opening and a carbon tank air outlet; the carbon tank air inlet is connected with the oil tank through a pipeline between the carbon tank and the oil tank; the carbon tank desorption port is connected with the engine through a desorption pipeline;
the ash filtering component comprises an ash filter, one end of the ash filter is communicated with an ash filtering air pipe, and the other end of the ash filter is communicated with an air outlet of the carbon tank through a pipeline from the carbon tank to the ash filter.
Further, the hydrocarbon concentration detection module is arranged in the carbon tank or the ash filter; the hydrocarbon concentration detection module comprises a hydrocarbon concentration sensor, and the hydrocarbon concentration sensor is arranged on the first injection molding shell; the first injection molding shell is arranged at the upper end of the carbon tank or the ash filter.
Further, the carbon-hydrogen concentration detection module is arranged on a pipeline between the carbon tank and the ash filter or an ash filter air pipe; the hydrocarbon concentration detection module comprises a hydrocarbon concentration sensor, the hydrocarbon concentration sensor is arranged on a second injection molding shell, and the second injection molding shell is arranged on the plug-in shell; the inserting shell is inserted in a pipeline between the carbon tank and the ash filter or an ash filter air outlet pipe.
Further, hydrocarbon concentration detection module sets up carbon canister gas outlet department in the carbon canister bottom, hydrocarbon concentration detection module includes hydrocarbon concentration sensor, hydrocarbon concentration sensor sets up on the third casing of moulding plastics.
Further, the hydrocarbon concentration detection module is inserted into the top of the carbon tank and comprises a hydrocarbon concentration sensor, and the hydrocarbon concentration sensor is arranged on the fourth injection molding shell; the fourth injection molding shell is arranged on the plug connector; the plug connector is arranged at the top interface of the carbon tank. .
Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages:
according to the carbon tank desorption system of the vehicle-mounted active fuel system, the carbon-hydrogen concentration in the carbon tank is actively monitored by additionally arranging the carbon-hydrogen concentration detection module, so that the function of actively desorbing the carbon tank is realized, when the carbon-hydrogen concentration detection module monitors that the carbon-hydrogen concentration reaches the carbon-hydrogen concentration set range of the carbon tank, a carbon tank desorption electromagnetic valve is opened, and meanwhile, an engine starts a combustion desorption carbon tank, so that the whole vehicle can completely meet the emission requirements of national regulations in a full working condition mode; and carbon hydrogen concentration detection module can install in carbon tank, ash are strained, carbon tank outlet duct, ash filter out positions such as trachea, as long as can detect the carbon hydrogen concentration in the carbon tank in real time all can, need not to mark to fuel oil system carbon tank desorption operating mode like this, but the platformization is promoted, very big reduction mark work load and mark the expense.
Drawings
The technical scheme of the invention is further explained by combining the accompanying drawings as follows:
FIG. 1 is a schematic structural diagram of a first embodiment of the present invention;
FIG. 2 is a side view of a carbon hydrogen concentration detection module mounted on a canister in accordance with a first embodiment;
FIG. 3 is a partial cross-sectional view of B-B of FIG. 2;
FIG. 4 is a perspective view of a carbon-hydrogen concentration detection module according to a second embodiment;
FIG. 5 is a side view of a carbon-hydrogen concentration detection module according to a second embodiment;
FIG. 6 is a partial cross-sectional view A-A of FIG. 5;
FIG. 7 is a side view of a carbon hydrogen concentration detection module of the third embodiment mounted on a canister;
FIG. 8 is a partial cross-sectional view of C-C of FIG. 7;
FIG. 9 is a side view of a carbon hydrogen concentration detection module of the fourth embodiment mounted on a canister;
FIG. 10 is a partial cross-sectional view of D-D of FIG. 9;
wherein: oil tank 1, carbon tank desorption system 2, carbon-hydrogen concentration detection module 3, pipeline 4 between carbon tank to the oil tank, carbon tank air inlet 10, carbon tank desorption mouth 11, carbon tank gas outlet 12, carbon tank 20, pipeline 21 between carbon tank to the ash is strained, desorption pipeline 22, 23 is strained to the ash, the trachea 24 is strained to the ash, carbon-hydrogen concentration sensor 30, the second casing 31 of moulding plastics, plug-in casing 32, the first casing 34 of moulding plastics, the third casing 35 of moulding plastics, the fourth casing 36 of moulding plastics, plug-in components 37, carbon tank casing 200, carbon tank casing cover 201, carbon dust 202.
Detailed Description
The invention is described in further detail below with reference to the figures and the embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not to be construed as limiting the invention.
The design idea of the invention is as follows:
the carbon-hydrogen concentration sensor 30 is used for actively monitoring the concentration of carbon-hydrogen molecules in the carbon tank 20, when the monitored concentration of carbon-hydrogen in the carbon tank 20 reaches the carbon-hydrogen concentration set range of the carbon tank, the carbon tank desorption electromagnetic valve is opened, the engine starts to desorb the carbon tank, the condition mode of the whole vehicle completely meets the national regulation emission requirement, and the function of actively desorbing the carbon tank is realized.
Example one
Referring to fig. 1-3, a carbon canister desorption system of a vehicle-mounted active fuel system according to an embodiment of the present invention includes an oil tank 1, a carbon canister desorption system 2, a hydrocarbon concentration detection module 3, and a carbon canister desorption solenoid valve (not shown in the drawings); the oil tank 1 is provided with a carbon tank desorption system 2, and the carbon tank desorption system comprises a carbon tank desorption assembly and an ash filter assembly; the carbon tank desorption assembly comprises a carbon tank 20 connected with the oil tank 1, and the carbon tank 20 is provided with a carbon tank air inlet 10, a carbon tank desorption opening 11 and a carbon tank air outlet 12; the carbon tank air inlet 10 is connected with the oil tank 1 through a pipeline 4 from the carbon tank to the oil tank; the canister desorption port 11 is connected to an engine (not shown) after being communicated with an intake manifold through a desorption pipeline 22.
The ash filtering component comprises an ash filter 23, one end of the ash filter 23 is communicated with an ash filtering air pipe 24, and the other end of the ash filter 23 is communicated with the carbon tank air outlet 12 through a pipeline 21 from the carbon tank to the ash filter.
The canister desorption solenoid valve is disposed in a desorption line between the canister 20 and an intake manifold (not shown) disposed on the engine.
The hydrocarbon concentration detection module 3 in the present embodiment is disposed in the canister 20 or the ash filter 23, and the manner of mounting the two is the same, and the hydrocarbon concentration detection module 3 is disposed in the canister 20 in the present embodiment.
Specifically, the carbon canister 20 includes a carbon canister housing 200, a carbon canister housing cover 201 is welded to the top of the carbon canister housing 200, carbon powder 202 is provided in the carbon canister housing 200, the hydrocarbon concentration detection module 3 includes a hydrocarbon concentration sensor 30, and the hydrocarbon concentration sensor 30 is installed in the first injection molding housing 34 through an integral injection molding or welding mode or a sealing ring; first casing 34 of moulding plastics sets up on carbon tank casing cover 201, and down inserts the intracavity that holds that constitutes to carbon tank casing 200 top and carbon tank casing cover 201, and hydrocarbon concentration sensor 30 sets up in holding the chamber this moment, can carry out real-time supervision to the hydrocarbon concentration in the carbon tank casing 200.
During operation, hydrocarbon concentration sensor 30 real-time detection follows the hydrocarbon concentration in carbon tank casing 200 to give whole car control system, when monitoring out that fuel steam hydrocarbon concentration exceeds carbon tank hydrocarbon concentration and sets for the scope, whole car control system gives signal instruction and opens carbon tank desorption solenoid valve, and the engine begins the desorption carbon tank (new forms of energy mix motor car type engine starts and begins the desorption carbon tank).
Example two
Referring to fig. 4-6, the hydrocarbon concentration detection module 3 in the present embodiment is disposed in the pipeline 21 from the canister to the ash filter; specifically, the hydrocarbon concentration detection module 3 includes a hydrocarbon concentration sensor 30; the hydrocarbon concentration sensor 30 is installed in the second injection molding shell 31 through integral injection molding or welding or sealing ring mode, the second injection molding shell 31 is installed on the plug-in shell 32 through assembling or welding or gluing mode, and finally the plug-in shell 32 is plugged in the pipeline 21 between the carbon tank and the ash filter, so that the hydrocarbon concentration sensor 30 can be utilized to monitor the hydrocarbon concentration in the carbon tank 1 in real time.
The during operation, carbon hydrogen concentration detection module 3 pegs graft in carbon-point tank to ash strains between pipeline 21 in, spill over the carbon-point tank to ash from carbon-point tank 20 as carbon hydrogen concentration sensor 30 real-time detection and strain the carbon hydrogen concentration in the pipeline 21 between the pipeline between the vehicle control system to the transmission, when monitoring out that fuel steam carbon hydrogen concentration exceeds carbon-point tank carbon hydrogen concentration and sets for the scope, whole vehicle control system gives out signal instruction and opens carbon-point tank desorption solenoid valve, carbon hydrogen molecule that the internal absorption of carbon-point tank 20 passes through air intake manifold and gets into the engine, the engine begins the desorption carbon-point tank (new forms of energy hybrid vehicle type engine starts and begins the desorption carbon-point tank).
In addition, the present carbon hydrogen concentration detection module 3 may also be disposed in the ash filter gas pipe 24 in the same manner as that of the pipe 21 installed between the canister and the ash filter.
EXAMPLE III
Referring to fig. 7-8, the difference between the first embodiment and the second embodiment is: the hydrocarbon concentration sensor 30 is arranged at the carbon tank gas outlet 12; specifically, the hydrocarbon concentration detection module comprises a hydrocarbon concentration sensor 30, the hydrocarbon concentration detection chip 30 is installed on a third injection molding shell 35 through an integral injection molding or welding mode or a sealing ring, the third injection molding shell 35 is installed at the carbon canister gas outlet 12 through an assembling or welding or gluing mode, the third injection molding shell 35 is installed in an inverted installation mode, and the hydrocarbon concentration sensor 30 can detect the hydrocarbon concentration at the carbon canister gas outlet 12.
Example four
Referring to fig. 9-10, the canister 20 includes a canister housing 200, a canister housing cover 201 is welded to the top of the canister housing 200, carbon powder 202 is provided in the canister housing 200, and the hydrocarbon concentration detection module 3 includes a hydrocarbon concentration sensor 30; carbon hydrogen concentration sensor 30 is installed in fourth casing 36 of moulding plastics through integrative moulding plastics or welding or sealing washer mounting means, fourth casing 36 of moulding plastics is installed on plug connector 37 through assembly or welding or the mode of beating glue, and the integrative injection moulding of plug connector 37 is on carbon tank casing cover 201 upper portion, and carbon hydrogen concentration sensor 30 can carry out real-time supervision to the hydrocarbon molecule concentration in carbon tank casing 200 this moment.
During operation, the hydrocarbon concentration sensor 30 detects the hydrocarbon concentration in the carbon tank shell body 200 in real time and transmits the hydrocarbon concentration to the whole vehicle control system, when the hydrocarbon concentration of fuel steam is monitored to exceed a set value of the system, the whole vehicle control system gives a signal instruction to open the carbon tank desorption electromagnetic valve, and the engine starts to desorb the carbon tank (the new energy hybrid vehicle type engine starts to desorb the carbon tank).
According to the carbon tank desorption system of the vehicle-mounted active fuel system, the carbon-hydrogen concentration detection module is additionally arranged to actively monitor the carbon-hydrogen concentration in the carbon tank, the function of actively desorbing the carbon tank is achieved, when the carbon-hydrogen concentration detection module monitors that the carbon-hydrogen concentration reaches the emission limit value of the carbon tank, the carbon tank desorbs the electromagnetic valve, and the engine starts to desorb the carbon tank, so that the whole vehicle all-condition mode is ensured to completely meet the national regulation emission requirements, wherein the emission limit value of the carbon tank can be set according to requirements, and therefore the requirements of different vehicle types are met.
And carbon hydrogen concentration detection module can install in carbon tank, ash are strained, carbon tank outlet duct, ash filter out relevant position such as trachea, as long as can detect carbon hydrogen concentration in the carbon tank in real time all can, need not to mark to fuel oil system carbon tank desorption operating mode like this, but the platformization is promoted, very big reduction mark work load and mark the expense.
The above is only a specific application example of the present invention, and the protection scope of the present invention is not limited in any way. All the technical solutions formed by equivalent transformation or equivalent replacement fall within the protection scope of the present invention.
Claims (6)
1. The utility model provides an on-vehicle active fuel system carbon tank desorption system which characterized in that includes:
the device comprises an oil tank, a carbon tank desorption system and a control system, wherein the oil tank is provided with the carbon tank desorption system, the carbon tank desorption system is connected with an engine, and a carbon tank is arranged in the carbon tank desorption system;
the carbon-hydrogen concentration detection module is arranged on the carbon tank desorption system and used for detecting the concentration of carbon-hydrogen molecules in the carbon tank;
the carbon tank desorption electromagnetic valve is arranged on a desorption pipeline between the carbon tank and the air inlet manifold;
when the hydrocarbon concentration detection module detects that the concentration of hydrocarbon molecules in the carbon tank exceeds a set range, the carbon tank desorption electromagnetic valve is opened, and the hydrocarbon molecules in the carbon tank are desorbed to the engine in a vacuum mode by the air inlet manifold and are combusted.
2. The vehicle-mounted active fuel system carbon tank desorption system of claim 1, wherein: the carbon tank desorption system comprises a carbon tank desorption assembly and an ash filter assembly;
the carbon tank desorption assembly comprises a carbon tank, and the carbon tank is provided with a carbon tank air inlet, a carbon tank desorption opening and a carbon tank air outlet; the carbon tank air inlet is connected with the oil tank through a pipeline between the carbon tank and the oil tank; the carbon tank desorption port is connected with the engine through a desorption pipeline;
the ash filtering component comprises an ash filter, one end of the ash filter is communicated with an ash filtering air pipe, and the other end of the ash filter is communicated with an air outlet of the carbon tank through a pipeline from the carbon tank to the ash filter.
3. The vehicle-mounted active fuel system carbon tank desorption system of claim 2, wherein: the carbon-hydrogen concentration detection module is arranged in the carbon tank or the ash filter; the hydrocarbon concentration detection module comprises a hydrocarbon concentration sensor, and the hydrocarbon concentration sensor is arranged on the first injection molding shell; the first injection molding shell is arranged at the upper end of the carbon tank or the ash filter.
4. The vehicle-mounted active fuel system carbon tank desorption system of claim 2, wherein: the carbon-hydrogen concentration detection module is arranged on a pipeline between the carbon tank and the ash filter or an ash filter air pipe; the hydrocarbon concentration detection module comprises a hydrocarbon concentration sensor, the hydrocarbon concentration sensor is arranged on a second injection molding shell, and the second injection molding shell is arranged on the plug-in shell; the inserting shell is inserted in a pipeline between the carbon tank and the ash filter or an ash filter air outlet pipe.
5. The vehicle-mounted active fuel system carbon tank desorption system of claim 2, wherein: carbon-hydrogen concentration detection module sets up carbon canister gas outlet department in the carbon canister bottom, carbon-hydrogen concentration detection module includes hydrocarbon concentration sensor, hydrocarbon concentration sensor sets up on the third casing of moulding plastics.
6. The vehicle-mounted active fuel system carbon tank desorption system of claim 2, wherein: the hydrocarbon concentration detection module is inserted into the top of the carbon tank and comprises a hydrocarbon concentration sensor, and the hydrocarbon concentration sensor is arranged on the fourth injection molding shell; the fourth injection molding shell is arranged on the plug connector; the plug connector is arranged at the top interface of the carbon tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111110786.9A CN113803192A (en) | 2021-09-18 | 2021-09-18 | Vehicle-mounted active carbon tank desorption system of fuel system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111110786.9A CN113803192A (en) | 2021-09-18 | 2021-09-18 | Vehicle-mounted active carbon tank desorption system of fuel system |
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| CN113803192A true CN113803192A (en) | 2021-12-17 |
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| CN202111110786.9A Pending CN113803192A (en) | 2021-09-18 | 2021-09-18 | Vehicle-mounted active carbon tank desorption system of fuel system |
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