WO2017028608A1 - 车载加油油气回收系统及具有其的汽车 - Google Patents

车载加油油气回收系统及具有其的汽车 Download PDF

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Publication number
WO2017028608A1
WO2017028608A1 PCT/CN2016/085067 CN2016085067W WO2017028608A1 WO 2017028608 A1 WO2017028608 A1 WO 2017028608A1 CN 2016085067 W CN2016085067 W CN 2016085067W WO 2017028608 A1 WO2017028608 A1 WO 2017028608A1
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WIPO (PCT)
Prior art keywords
canister
solenoid valve
recovery system
vehicle
oil
Prior art date
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PCT/CN2016/085067
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English (en)
French (fr)
Inventor
方永新
李常珞
谢世滨
Original Assignee
浙江吉利汽车研究院有限公司
浙江吉利控股集团有限公司
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Application filed by 浙江吉利汽车研究院有限公司, 浙江吉利控股集团有限公司 filed Critical 浙江吉利汽车研究院有限公司
Priority to US15/751,874 priority Critical patent/US10864817B2/en
Priority to EP16836472.7A priority patent/EP3339622B1/en
Publication of WO2017028608A1 publication Critical patent/WO2017028608A1/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
    • B60K15/03—Fuel tanks
    • B60K15/035—Fuel tanks characterised by venting means
    • B60K15/03504—Fuel tanks characterised by venting means adapted to avoid loss of fuel or fuel vapour, e.g. with vapour recovery systems
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
    • B60K15/03—Fuel tanks
    • B60K15/035—Fuel tanks characterised by venting means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
    • B60K15/03—Fuel tanks
    • B60K15/04—Tank inlets
    • 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
    • F02M25/0854—Details of the absorption canister
    • 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
    • F02M25/0872—Details of the fuel vapour pipes or conduits
    • 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
    • F02M25/089—Layout of the fuel vapour installation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
    • B60K15/03—Fuel tanks
    • B60K15/035—Fuel tanks characterised by venting means
    • B60K15/03519—Valve arrangements in the vent line
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
    • B60K15/03—Fuel tanks
    • B60K15/035—Fuel tanks characterised by venting means
    • B60K15/03504—Fuel tanks characterised by venting means adapted to avoid loss of fuel or fuel vapour, e.g. with vapour recovery systems
    • B60K2015/03514—Fuel tanks characterised by venting means adapted to avoid loss of fuel or fuel vapour, e.g. with vapour recovery systems with vapor recovery means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
    • B60K15/03—Fuel tanks
    • B60K15/04—Tank inlets
    • B60K2015/0458—Details of the tank inlet
    • B60K2015/048—Arrangements for sealing the fuel inlet during filling
    • 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
    • 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
    • F02M2025/0881—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 with means to heat or cool the canister

Definitions

  • the invention relates to the technical field of automobiles, and in particular to a vehicle fueling oil and gas recovery system and a vehicle therewith.
  • the Onboard Refueling Vapor Recovery (ORVR) system is a vehicle emission control system that collects oil vapor volatilized from the fuel tank during refueling.
  • the ORVR system is placed between the fuel tank and the engine.
  • the oil vapor in the fuel tank is absorbed by an adsorption canister, that is, the adsorption process; when the engine starts to operate, the oil vapor in the canister is sucked into the engine intake manifold, thereby being used as fuel Use, ie the desorption process.
  • the invention provides an on-board refueling oil and gas recovery system, which comprises a main carbon canister and a backup carbon canister filled with activated carbon, a hydrocarbon sensor, a gravity valve, a filling limit exhaust valve and an oil vapor pipe.
  • the gravity valve and the filling limit exhaust valve are respectively disposed at the top of the fuel tank, The gravity valve and the two sides of the filling limit exhaust valve are respectively sealingly connected with the oil tank and the inlet end of the oil vapor tube, and the main carbon tank and the spare carbon tank are respectively connected with the oil
  • An outlet end of the steam pipe is sealingly connected, the main canister is in communication with an intake manifold of the engine, the hydrocarbon sensor is disposed in the main canister, and the hydrocarbon sensor is electrically connected to the vehicle controller.
  • the hydrocarbon sensor detects a hydrocarbon content in the main canister and transmits it to the vehicle controller.
  • the oil vapor tube includes a first air inlet, a second air inlet, a first air outlet, and a second air outlet, and the first air inlet is sealingly connected to one side of the gravity valve.
  • the second air inlet is sealingly connected to a side of the filling limit exhaust valve, the first air outlet is in communication with the main canister, and the second air outlet is in communication with the backup canister.
  • the main canister is provided with a main canister inlet, the main canister inlet is sealingly connected to the first outlet, and the main canister is away from the main canister inlet
  • the location is provided with a detaching air inlet that is coupled to the intake manifold to effect communication of the primary canister with the intake manifold.
  • the spare canister is provided with a spare canister inlet, and the backup canister inlet is sealingly connected to the second outlet.
  • the in-vehicle refueling oil and gas recovery system further includes a solenoid valve control device, the solenoid valve control device including a solenoid valve, the solenoid valve being disposed between the backup canister and the second air outlet, When the solenoid valve is opened, the alternate canister communicates with the oil vapor pipe, and when the solenoid valve is closed, the backup canister is disconnected from the oil vapor pipe.
  • the solenoid valve control device further includes a solenoid valve control switch, the solenoid valve control switch is electrically connected to the solenoid valve, and the solenoid valve controls the closing and opening of the switch to control the opening and closing of the solenoid valve
  • the solenoid valve control switch is electrically connected to the vehicle controller, and the vehicle controller controls closing and opening of the solenoid valve control switch to realize opening and closing of the solenoid valve.
  • the solenoid valve control device further includes a flap state sensor, the flap state sensor is disposed at the vehicle body fuel filler port, and the flap state sensor is electrically connected to the vehicle controller, The vehicle controller receives a signal from the flap state sensor to control the closing and opening of the solenoid valve control switch to effect opening and closing of the solenoid valve.
  • the in-vehicle refueling oil and gas recovery system further includes a one-way valve, and the one-way valve is set The communication between the main canister and the alternate canister is controlled between the main canister and the alternate canister by opening and closing the one-way valve.
  • the main canister is provided with a main canister opening to the atmosphere
  • the spare canister is provided with a spare canister through the atmosphere.
  • the invention also provides an automobile comprising the on-vehicle refueling oil and gas recovery system.
  • the technical solution of the embodiment of the present invention has the beneficial effects that the above-mentioned on-board refueling oil and gas recovery system can normally perform refueling and can adsorb oil vapor even if the main carbon canister is aged and deactivated. Desorption.
  • FIG. 1 is a schematic structural view of an in-vehicle refueling oil and gas recovery system according to an embodiment of the present invention.
  • Figure 2 is an enlarged schematic view of the oil vapor tube of Figure 1.
  • FIG. 1 is a schematic structural view of a vehicle fueling oil and gas recovery system according to an embodiment of the present invention
  • FIG. 2 is an enlarged schematic view of the oil vapor pipe of FIG. 1.
  • FIG. 1 includes vehicle control in addition to the vehicle fueling oil and gas recovery system 10.
  • Vehicle control unit (VCU) 20, engine control unit 22, engine 30, intake manifold 32, fuel tank 40, fuel filler pipe 42, vehicle fuel filler port 43, vehicle body fuel filler cap 44, etc.
  • VCU Vehicle control unit
  • the in-vehicle refueling oil and gas recovery system 10 of the embodiment of the present invention includes a main canister 11, a backup canister 12, a hydrocarbon sensor 13, a gravity rollover valve (GRV) 14, and a refilling restriction exhaust valve.
  • GRV gravity rollover valve
  • the in-vehicle refueling oil and gas recovery system 10 can be installed in either an ordinary automobile or a hybrid electric vehicle. In the present embodiment, a hybrid electric vehicle will be described as an example.
  • the gravity valve 14 is disposed at the top of the oil tank 40, the gravity valve 14 is disposed between the oil tank 40 and the oil vapor tube 16, and the two sides of the gravity valve 14 are respectively sealedly connected with the oil tank 40 and the inlet end of the oil vapor tube 16, The gravity valve 14 controls the communication of the oil tank 40 and the oil vapor tube 16. During the canister desorption process, the gravity valve 14 is opened and the oil tank 40 and the oil vapor tube 16 are in communication.
  • the filling restriction exhaust valve 15 is disposed at the top of the oil tank 40, and the filling restriction exhaust valve 15 and the gravity valve 14 are spaced apart from each other, and the filling restriction exhaust valve 15 is disposed between the oil tank 40 and the oil vapor pipe 16 and is added.
  • the two sides of the exhaust valve 15 are respectively sealedly connected with the intake ports of the oil tank 40 and the oil vapor pipe 16, and the filling limit valve 15 can control the communication between the oil tank 40 and the oil vapor pipe 16, that is, during the refueling process, Note that the exhaust valve 15 is opened and the oil tank 40 and the oil vapor pipe 16 are in communication.
  • the gravity valve 14 and the fill limit exhaust valve 15 communicate with each other through the oil vapor tube 16.
  • the oil vapor tube 16 is disposed between the oil tank 40 and the main carbon tank 11 and the backup carbon can 12, and the oil vapor tube 16 includes a first air inlet 161, a second air inlet 162, a first air outlet 163, and a second outlet. Air port 164.
  • the first air inlet 161 and the second air inlet 162 are located at the intake end of the oil vapor tube 16, and the first air outlet 163 and the second air outlet 164 are located at the air outlet end of the oil vapor tube 16, and the first air inlet 161 is One side of the gravity valve 14 is sealingly connected, the second air inlet 162 is sealingly connected to the side of the filling limit exhaust valve 15, the first air outlet 163 is in communication with the main canister 11, and the second air outlet 164 is connected to the backup canister 12 connected.
  • the main canister 11 has a hollow can body structure, the main canister 11 is filled with activated carbon, and the main canister 11 is provided with a main canister inlet 112, a main canister inlet 112 and an oil vapor pipe 16 first.
  • the air outlet 163 is sealingly connected, and the main canister 11 is disposed away from the main canister inlet 112 with a desorption inlet 114, and the main canister 11 is away from the main canister inlet 112 and the desorption inlet 114.
  • a main canister is provided through the atmosphere port 116, the desorption inlet port 114 is connected to the intake manifold 32, and the main canister 11 is in communication with the intake manifold 32.
  • the hydrocarbon sensor 13 is disposed in the main canister 11, the hydrocarbon sensor 13 is electrically connected to the vehicle controller 20, and the hydrocarbon sensor 13 can detect the hydrocarbon concentration in the main canister 11 and transmit the detection result to the whole. Vehicle controller 20.
  • the spare canister 12 has a hollow can body structure, the spare canister 12 is filled with activated carbon, the spare canister 12 is provided with a spare canister inlet 122, the secondary canister inlet 122 and the oil vapor pipe 16 are second.
  • the air outlet 164 is sealingly connected, and a check valve 18 is disposed between the backup canister 12 and the main canister 11, and the check valve 18 can be opened to the main canister 11 to allow the main canister 11 and the backup canister 12 to communicate.
  • the spare canister 12 is disposed away from the alternate canister inlet 122 and the check valve 18 with a spare canister opening to the atmosphere. 126.
  • the solenoid valve control device 17 includes a solenoid valve 172, a flap state sensor 174, and a solenoid valve control switch 176.
  • the solenoid valve 172 is disposed between the alternate canister inlet 122 of the alternate canister 12 and the second outlet 164 of the oil vapor tube 16. When the solenoid valve 172 is opened, the backup canister 12 and the oil vapor pipe 16 communicate with each other. When the solenoid valve 172 is closed, the backup canister 12 is disconnected from the oil vapor pipe 16.
  • the solenoid valve control switch 176 is disposed at the vehicle body fuel filler port 43, the solenoid valve control switch 176 is electrically connected to the solenoid valve 172, the solenoid valve control switch 176 is closed and opened to control the opening and closing of the solenoid valve 172, and the solenoid valve control switch 176 is
  • the vehicle controller 20 is electrically connected, and the vehicle controller 20 can control the closing and opening of the solenoid valve control switch 176 to control the opening and closing of the solenoid valve 172.
  • the flap state sensor 174 is disposed at the vehicle body fuel filler port 43, the flap state sensor 174 is electrically connected to the vehicle controller 20, and the flap state sensor 174 can send a signal to the vehicle controller 20.
  • the vehicle controller 20 is a central controller of the hybrid electric vehicle.
  • the in-vehicle refueling and gas recovery system 10 uses the vehicle controller 20 of the vehicle to control and receive information, that is, the vehicle controller 20 controls the engine separately.
  • the control unit (ECU) 22, the solenoid valve control switch 176, and the like, the vehicle controller 20 simultaneously receives information transmitted by the flap state sensor 174, the hydrocarbon sensor 13, and the like, and the engine control unit 22 controls the operation of the engine 30, that is, The vehicle controller 20 indirectly controls the engine 30.
  • the working principle of the in-vehicle refueling and gas recovery system 10 of the embodiment of the present invention is as follows:
  • Refueling process When refueling, a refueling gun (not shown) forms a liquid seal with the fuel supply pipe 42 of the oil tank 40, which prevents oil vapor from leaking from the fuel filler pipe 42, and the oil vapor in the oil tank 40 enters from the filling limit exhaust valve 15.
  • the oil vapor pipe 16 is again introduced into the main canister 11 and adsorbed, and the adsorbed gas is discharged from the main canister of the main canister 11 through the atmospheric port 116 to complete the refueling process.
  • the desorption process of the hybrid electric vehicle in the electric mode the hybrid electric vehicle is in the electric mode, the engine 30 does not work, and the working motor is a driving motor (not shown), and the oil vapor in the oil tank enters the oil through the gravity valve 14.
  • the steam pipe 16 is re-entered into the main canister 11 and adsorbed.
  • the hydrocarbon sensor 13 detects that the hydrocarbon content in the main canister 11 reaches a certain concentration (for example, the hydrocarbon content reaches 0.4 g/L) and transmits the test result.
  • the vehicle controller 20 controls the engine control The unit 22, in turn, controls the operation of the engine 30 to desorb the main canister 11 (oil vapor in the main canister 11 is drawn into the intake manifold 32 by the engine 30); after desorption, the hydrocarbon sensor 13 detects the main The carbon content in the canister 11 is normal (for example, the hydrocarbon content reaches 0.15 g/L) and the detection result is transmitted to the vehicle controller 20, and the vehicle controller 20 controls the engine 30 to stop operating.
  • the desorption process of the hybrid electric vehicle in the fuel mode the oil vapor of the oil tank 40 enters the oil vapor pipe 16 through the gravity valve 14, enters the main canister 11 and is adsorbed, and since the engine 30 is in operation at this time, the engine 30 The main canister 11 is spontaneously desorbed.
  • This process is basically the same as the desorption process of an ordinary automobile, except that there is no vehicle controller 20 in an ordinary car, and the receiving and controlling processes are all completed by the engine control unit 22.
  • the main canister 11 is degraded due to aging for a long time, and the hydrocarbon sensor 13 detects that the hydrocarbon content in the main canister 11 exceeds the specified value and cannot be restored to the normal hydrocarbon content through the desorption process.
  • the vehicle controller 20 controls the maintenance warning light of the instrument panel to flash and is accompanied by a prompt sound, and the vehicle controller 20 controls the flap state sensor 174 to start working. If the fuel supply is required to be faulty, the user opens the vehicle body. When the fuel filler cap 44 is inserted into the fueling gun and refueled, the flap state sensor 174 transmits a signal to the vehicle controller 20 to open the solenoid valve 172.
  • the control solenoid valve control switch 176 is closed to control the solenoid valve 172.
  • the oil vapor enters the oil vapor pipe 16 from the filling limit exhaust valve 15 and enters the reserve carbon canister 12 through the electromagnetic valve 172 for adsorption.
  • the adsorbed gas passes through the atmosphere of the spare canister of the spare canister 12. 126 discharge, to ensure normal refueling.
  • the solenoid valve control switch 176 can also be closed or opened by manual direct control.
  • the desorption process of the reserve canister since the check valve 18 is disposed between the backup canister 12 and the main canister 11, when the engine 30 is in operation, the negative pressure generated by the engine 30 is sufficient to open the check valve 18, and the spare carbon is used at this time.
  • the canister 12 is in communication with the main canister 11, and the secondary canister 12 is subjected to corresponding desorption as described above.
  • the present invention also provides an automobile comprising the above-described on-vehicle refueling oil and gas recovery system 10, which may be an ordinary automobile or a hybrid electric vehicle.
  • the technical solution of the embodiment of the present invention has the beneficial effects that the above-described on-board refueling oil and gas recovery system 10 can normally perform refueling even if the main canister 11 is aged and deactivated, and can perform oil refueling. Adsorption and desorption.
  • the above-mentioned on-board refueling oil and gas recovery system can normally perform refueling and can adsorb and desorb the oil vapor even if the main carbon canister is aged and desorbed.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Transportation (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

一种车载加油油气回收系统，包括填充有活性炭的主炭罐（１１）和备用炭罐（１２）、碳氢传感器（１３）、重力阀（１４）、加注限制排气阀（１５）以及油蒸气管（１６）。重力阀（１４）和加注限制排气阀（１５）分别设置于油箱（４０）的顶部，重力阀（１４）和加注限制排气阀（１５）的两侧分别与油箱（４０）和油蒸气管（１６）的进气端密封连接。主炭罐（１１）和备用炭罐（１２）分别与油蒸气管（１６）的出气端密封连接，主炭罐（１１）与发动机（３０）的进气歧管（３２）连通。碳氢传感器（１３）设置于主炭罐（１１）内，碳氢传感器（１３）与整车控制器（２０）电性连接，碳氢传感器（１３）检测主炭罐（１１）内的碳氢含量并传递给整车控制器（２０）。还公开了一种包括该车载加油油气回收系统的汽车。

Description

车载加油油气回收系统及具有其的汽车
本专利申请要求2015年08月20日提交的中国专利申请号为201510511761.8，申请人为浙江吉利汽车研究院有限公司、浙江吉利控股集团有限公司，发明名称为“车载加油油气回收系统及具有其的汽车”的优先权，该申请的全文以引用的方式并入本申请中。
技术领域
本发明涉及汽车技术领域，尤其涉及一种车载加油油气回收系统及具有其的汽车。
背景技术
车载加油油气回收(Onboard Refueling Vapor Recovery，ORVR)系统，是一种车辆排放控制系统，它能够收集加油过程中从油箱中挥发出来的油蒸气。ORVR系统被设置于油箱和发动机之间。当汽车加油时，油箱中的油蒸气会被一个具有吸附作用的炭罐吸收，即吸附过程；当发动机开始运转时，炭罐中的油蒸气就会吸入发动机进气歧管，从而作为燃料被使用，即脱附过程。
然而，在长期使用后，脱附作用会下降甚至失效，ORVR系统的炭罐老化，进而会导致加油过程中油箱的通气阻力变大，引起加油不畅，加油跳枪，甚至无法加油、渗油等问题。
发明内容
鉴于上述状况，有必要提供一种可在炭罐老化以及炭罐脱附失效时可正常加油的车载加油油气回收系统，以解决现有技术中的不足。
本发明提供一种车载加油油气回收系统，所述车载加油油气回收系统包括填充有活性炭的主炭罐和备用炭罐、碳氢传感器、重力阀、加注限制排气阀以及油蒸气管，所述重力阀和所述加注限制排气阀分别设置于油箱的顶部， 所述重力阀和所述加注限制排气阀的两侧分别与所述油箱和所述油蒸气管的进气端密封连接，所述主炭罐和所述备用炭罐分别与所述油蒸气管的出气端密封连接，所述主炭罐与发动机的进气歧管连通，所述碳氢传感器设置于所述主炭罐内，所述碳氢传感器与整车控制器电性连接，所述碳氢传感器检测所述主炭罐内的碳氢含量并传递给所述整车控制器。
进一步地，所述油蒸气管包括第一进气口、第二进气口、第一出气口以及第二出气口，所述第一进气口与所述重力阀的一侧密封连接，所述第二进气口与所述加注限制排气阀的一侧密封连接，所述第一出气口与所述主炭罐连通，所述第二出气口与所述备用炭罐连通。
进一步地，所述主炭罐上设置有主炭罐进气口，所述主炭罐进气口与所述第一出气口密封连接，所述主炭罐远离所述主炭罐进气口的位置设置有脱附进气口，所述脱附进气口与所述进气歧管连接而实现所述主炭罐与所述进气歧管连通。
进一步地，所述备用炭罐上设置有备用炭罐进气口，所述备用炭罐进气口与所述第二出气口密封连接。
进一步地，所述车载加油油气回收系统还包括电磁阀控制装置，所述电磁阀控制装置包括电磁阀，所述电磁阀设置于所述备用炭罐与所述第二出气口之间，所述电磁阀开启时，所述备用炭罐与所述油蒸气管之间连通，所述电磁阀关闭时，所述备用炭罐与所述油蒸气管之间断开。
进一步地，所述电磁阀控制装置还包括电磁阀控制开关，所述电磁阀控制开关与所述电磁阀电性连接，所述电磁阀控制开关的闭合与开启控制所述电磁阀的开启与关闭，所述电磁阀控制开关与所述整车控制器电性连接，所述整车控制器控制所述电磁阀控制开关的闭合与开启以实现所述电磁阀的开启与关闭。
进一步地，所述电磁阀控制装置还包括口盖状态传感器，所述口盖状态传感器设置于所述车身加油口处，所述口盖状态传感器与所述整车控制器电性连接，所述整车控制器接收所述口盖状态传感器发出的信号而控制所述电磁阀控制开关的闭合与开启以实现所述电磁阀的开启与关闭。
进一步地，所述车载加油油气回收系统还包括单向阀，所述单向阀设置 于所述主炭罐和所述备用炭罐之间且通过开启和关闭所述单向阀以控制所述主炭罐和所述备用炭罐的连通。
进一步地，所述主炭罐设置有主炭罐通大气口，所述备用炭罐设置有备用炭罐通大气口。
本发明还提供一种汽车，所述汽车包括所述的车载加油油气回收系统。
如上所述，本发明实施例的技术方案带来的有益效果是：上述的车载加油油气回收系统，即使主炭罐老化、脱附失效，仍可正常进行加油，并能对油蒸气进行吸附和脱附。
附图概述
图1是本发明实施例的车载加油油气回收系统的结构示意图。
图2是图1中油蒸气管的放大示意图。
本发明的较佳实施方式
为使本发明的目的、技术方案和优点更加清楚，下面将结合附图对本发明实施方式作进一步地描述。
图1是本发明实施例的车载加油油气回收系统的结构示意图，图2是图1中油蒸气管的放大示意图，为方便描述，图1中除了车载加油油气回收系统10之外还包括整车控制器(vehicle control unit，VCU)20、发动机控制单元22、发动机30、进气歧管32、油箱40、加油管42、车身加油口43、车身加油口盖44等，具体的，请参见图1、图2所示，本发明实施例的车载加油油气回收系统10包括主炭罐11、备用炭罐12、碳氢传感器13、重力阀(Grade Rollover Valve，GRV)14、加注限制排气阀(Fill Limit Vent Valve，FLVV)15、油蒸气管16、电磁阀控制装置17、以及单向阀18。车载加油油气回收系统10既可设置于普通汽车，也可设置于混合动力电动汽车，在本实施例中，以混合动力电动汽车为例进行说明。
重力阀14设置于油箱40的顶部，重力阀14设置于油箱40和油蒸气管16之间且重力阀14的两侧分别与油箱40和油蒸气管16的进气端密封连接， 重力阀14可控制油箱40和油蒸气管16的连通，在炭罐脱附过程，重力阀14开启而油箱40和油蒸气管16连通。
同样，加注限制排气阀15设置于油箱40的顶部，加注限制排气阀15与重力阀14相互间隔，加注限制排气阀15设置于油箱40和油蒸气管16之间且加注限制排气阀15的两侧分别与油箱40和油蒸气管16的进气端密封连接，加注限制排气阀15可控制油箱40和油蒸气管16的连通，即在加油过程，加注限制排气阀15开启而油箱40和油蒸气管16连通。重力阀14和加注限制排气阀15通过油蒸气管16互相连通。
油蒸气管16设置于油箱40与主炭罐11和备用炭罐12之间，油蒸气管16包括第一进气口161、第二进气口162、第一出气口163、以及第二出气口164。第一进气口161、第二进气口162位于油蒸气管16的进气端，第一出气口163、第二出气口164位于油蒸气管16的出气端，第一进气口161与重力阀14的一侧密封连接，第二进气口162与加注限制排气阀15的一侧密封连接，第一出气口163与主炭罐11连通，第二出气口164与备用炭罐12连通。
主炭罐11呈中空的罐体结构，主炭罐11内部填充有活性炭，主炭罐11上设置有主炭罐进气口112，主炭罐进气口112与油蒸气管16的第一出气口163密封连接，主炭罐11远离主炭罐进气口112的位置设置有脱附进气口114，主炭罐11远离主炭罐进气口112和脱附进气口114的位置设置有主炭罐通大气口116，脱附进气口114与进气歧管32连接，主炭罐11与进气歧管32连通。
碳氢传感器13设置于主炭罐11内，碳氢传感器13与整车控制器20电性连接，碳氢传感器13可对主炭罐11内的碳氢浓度进行检测并将检测结果传递给整车控制器20。
备用炭罐12呈中空的罐体结构，备用炭罐12内部填充有活性炭，备用炭罐12上设置有备用炭罐进气口122，备用炭罐进气口122与油蒸气管16的第二出气口164密封连接，备用炭罐12和主炭罐11之间设置有单向阀18，单向阀18可向主炭罐11开启而使得主炭罐11和备用炭罐12连通。备用炭罐12远离备用炭罐进气口122和单向阀18的位置设置有备用炭罐通大气口 126。
电磁阀控制装置17包括电磁阀172、口盖状态传感器174、以及电磁阀控制开关176。
电磁阀172设置于备用炭罐12的备用炭罐进气口122与油蒸气管16的第二出气口164之间，电磁阀172开启时，备用炭罐12与油蒸气管16之间连通，电磁阀172关闭时，备用炭罐12与油蒸气管16之间断开。
电磁阀控制开关176设置于车身加油口43处，电磁阀控制开关176与电磁阀172电性连接，电磁阀控制开关176的闭合与开启控制电磁阀172的开启与关闭，电磁阀控制开关176与整车控制器20电性连接，整车控制器20可控制电磁阀控制开关176的闭合与开启进而控制电磁阀172的开启与关闭。口盖状态传感器174设置于车身加油口43处，口盖状态传感器174与整车控制器20电性连接，口盖状态传感器174可向整车控制器20发送信号。
整车控制器20是混合动力电动汽车的中心控制器，在本实施例中，车载加油油气回收系统10采用汽车的整车控制器20进行控制和接收信息，即整车控制器20分别控制发动机控制单元(ECU)22以及电磁阀控制开关176等，整车控制器20同时接收口盖状态传感器174、碳氢传感器13等传递的信息，而发动机控制单元22控制发动机30的工作与否，即整车控制器20间接控制发动机30。
参见图1、图2所示，本发明实施例的车载加油油气回收系统10的作用原理如下：
加油过程：加油时，加油枪(图未示)与油箱40的加油管42形成液封，可防止油蒸气从加油管42处泄漏，油箱40中的油蒸气从加注限制排气阀15进入油蒸气管16，再进入主炭罐11并进行吸附，经过吸附后的气体从主炭罐11的主炭罐通大气口116排出，而完成加油过程。
混合动力电动汽车在电动模式下的脱附过程：混合动力电动汽车在电动模式下，发动机30不工作，而工作的是驱动电机(图未示)，油箱中的油蒸气通过重力阀14进入油蒸气管16，再进入主炭罐11并进行吸附，当碳氢传感器13检测到主炭罐11内的碳氢含量达到一定的浓度(例如碳氢含量达到0.4g/L)并将检测结果传递给整车控制器20，整车控制器20控制发动机控制 单元22进而控制发动机30工作，而对主炭罐11进行脱附(主炭罐11内的油蒸气被发动机30吸进进气歧管32中)；脱附后，碳氢传感器13检测到主炭罐11内的碳氢含量达到正常(例如碳氢含量达到0.15g/L)并将检测结果传递给整车控制器20，整车控制器20控制发动机30停止工作。
混合动力电动汽车在燃油模式下的脱附过程：油箱40的油蒸气通过重力阀14进入油蒸气管16，再进入主炭罐11并进行吸附，由于此时发动机30处于工作状态，故发动机30自发地对主炭罐11进行脱附工作。此过程与普通汽车的脱附过程基本相同，只是普通汽车中无整车控制器20，接收和控制过程均通过发动机控制单元22来完成。
带故障加油过程：主炭罐11由于长期使用老化，脱附不良，此时碳氢传感器13检测到主炭罐11内的碳氢含量超过规定值且无法通过脱附过程恢复至正常碳氢含量水平，此时整车控制器20控制仪表盘的维修警告灯闪烁并伴有提示音，同时整车控制器20控制口盖状态传感器174开始工作，若此时需要带故障加油，则用户打开车身加油口盖44插入加油枪后加油时，口盖状态传感器174向整车控制器20传递开启电磁阀172的信号，整车控制器20接收信号后控制电磁阀控制开关176闭合进而控制电磁阀172开启，加油时，油蒸气从加注限制排气阀15进入油蒸气管16，经电磁阀172进入备用炭罐12进行吸附，经过吸附后的气体从备用炭罐12的备用炭罐通大气口126排出，保证正常加油。还可以理解，电磁阀控制开关176也可以通过手动直接控制闭合或开启。
备用炭罐的脱附过程：由于备用炭罐12和主炭罐11之间设置有单向阀18，发动机30工作时，发动机30产生的负压足够将单向阀18开启，此时备用炭罐12和主炭罐11连通，备用炭罐12按上述步骤进行相应的脱附。
本发明还提供一种汽车，包括上述车载加油油气回收系统10，该汽车可以是普通汽车，也可以是混合动力电动汽车。
如上所述，本发明实施例的技术方案带来的有益效果是：上述的车载加油油气回收系统10，即使主炭罐11老化、脱附失效，仍可正常进行加油，并能对油蒸气进行吸附和脱附。
在本发明中，术语“包括”、“包含”或者其任何其他变体意在涵盖非 排他性的包含，除了包含所列的那些要素，而且还可包含没有明确列出的其他要素。
在本发明中，所涉及的前、后、上、下等方位词是以附图中零部件位于图中以及零部件相互之间的位置来定义的，只是为了表达技术方案的清楚及方便。应当理解，所述方位词的使用不应限制本申请请求保护的范围。
在不冲突的情况下，本发明中上述实施例及实施例中的特征可以相互结合。
以上所述仅为本发明的较佳实施例，并不用以限制本发明，凡在本发明的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。
工业实用性
本发明实施例中，上述的车载加油油气回收系统，即使主炭罐老化、脱附失效，仍可正常进行加油，并能对油蒸气进行吸附和脱附。

Claims (10)

  1. 一种车载加油油气回收系统(10)，其特征在于：所述车载加油油气回收系统(10)包括填充有活性炭的主炭罐(11)和备用炭罐(12)、碳氢传感器(13)、重力阀(14)、加注限制排气阀(15)以及油蒸气管(16)，所述重力阀(14)和所述加注限制排气阀(15)分别设置于油箱(40)的顶部，所述重力阀(14)和所述加注限制排气阀(15)的两侧分别与所述油箱(40)和所述油蒸气管(16)的进气端密封连接，所述主炭罐(11)和所述备用炭罐(12)分别与所述油蒸气管(16)的出气端密封连接，所述主炭罐(11)与发动机(30)的进气歧管(32)连通，所述碳氢传感器(13)设置于所述主炭罐(11)内，所述碳氢传感器(13)与整车控制器(20)电性连接，所述碳氢传感器(13)检测所述主炭罐(11)内的碳氢含量并传递给所述整车控制器(20)。
  2. 如权利要求1所述的车载加油油气回收系统(10)，其特征在于：所述油蒸气管(16)包括第一进气口(161)、第二进气口(162)、第一出气口(163)以及第二出气口(164)，所述第一进气口(161)与所述重力阀(14)的一侧密封连接，所述第二进气口(162)与所述加注限制排气阀(15)的一侧密封连接，所述第一出气口(163)与所述主炭罐(11)连通，所述第二出气口(164)与所述备用炭罐(12)连通。
  3. 如权利要求2所述的车载加油油气回收系统(10)，其特征在于：所述主炭罐(11)上设置有主炭罐进气口(112)，所述主炭罐进气口(112)与所述第一出气口(163)密封连接，所述主炭罐(11)远离所述主炭罐进气口(112)的位置设置有脱附进气口(114)，所述脱附进气口(114)与所述进气歧管(32)连接而实现所述主炭罐(11)与所述进气歧管(32)连通。
  4. 如权利要求2所述的车载加油油气回收系统(10)，其特征在于：所述备用炭罐(12)上设置有备用炭罐进气口(122)，所述备用炭罐进气口(122)与所述第二出气口(164)密封连接。
  5. 如权利要求2所述的车载加油油气回收系统(10)，其特征在于：所述车载加油油气回收系统(10)还包括电磁阀控制装置(17)，所述电磁阀控制装置(17)包括电磁阀(172)，所述电磁阀(172)设置于所述备用炭 罐(12)与所述第二出气口(164)之间，所述电磁阀(172)开启时，所述备用炭罐(12)与所述油蒸气管(16)之间连通，所述电磁阀(172)关闭时，所述备用炭罐(12)与所述油蒸气管(16)之间断开。
  6. 如权利要求5所述的车载加油油气回收系统(10)，其特征在于：所述电磁阀控制装置(17)还包括电磁阀控制开关(176)，所述电磁阀控制开关(176)与所述电磁阀(172)电性连接，所述电磁阀控制开关(176)的闭合与开启控制所述电磁阀(172)的开启与关闭，所述电磁阀控制开关(176)与所述整车控制器(20)电性连接，所述整车控制器(20)控制所述电磁阀控制开关(176)的闭合与开启以实现所述电磁阀(172)的开启与关闭。
  7. 如权利要求6所述的车载加油油气回收系统(10)，其特征在于：所述电磁阀控制装置(17)还包括口盖状态传感器(174)，所述口盖状态传感器(174)设置于所述车身加油口(43)处，所述口盖状态传感器(174)与所述整车控制器(20)电性连接，所述整车控制器(20)接收所述口盖状态传感器(174)发出的信号而控制所述电磁阀控制开关(176)的闭合与开启以实现所述电磁阀(172)的开启与关闭。
  8. 如权利要求1所述的车载加油油气回收系统(10)，其特征在于：所述车载加油油气回收系统(10)还包括单向阀(18)，所述单向阀(18)设置于所述主炭罐(11)和所述备用炭罐(12)之间且通过开启和关闭所述单向阀(18)以控制所述主炭罐(11)和所述备用炭罐(12)的连通。
  9. 如权利要求1所述的车载加油油气回收系统(10)，其特征在于：所述主炭罐(11)设置有主炭罐通大气口(116)，所述备用炭罐(12)设置有备用炭罐通大气口(126)。
  10. 一种汽车，其特征在于：所述汽车包括如权利要求1至9中任意一项所述的车载加油油气回收系统(10)。
PCT/CN2016/085067 2015-08-20 2016-06-07 车载加油油气回收系统及具有其的汽车 WO2017028608A1 (zh)

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