CN107542598A - High pressure fuel vapo(u)rization system and its control method, vehicle - Google Patents
High pressure fuel vapo(u)rization system and its control method, vehicle Download PDFInfo
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- CN107542598A CN107542598A CN201610486195.4A CN201610486195A CN107542598A CN 107542598 A CN107542598 A CN 107542598A CN 201610486195 A CN201610486195 A CN 201610486195A CN 107542598 A CN107542598 A CN 107542598A
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Abstract
The invention provides a kind of high pressure fuel vapo(u)rization system and its control method, vehicle, including：High pressure fuel case；Temperature/pressure sensor, for detecting gas temperature and gas pressure in high pressure fuel case；Fuel tank isolation valve, for carrying out/tonifying Qi of deflating to high pressure fuel case in unlatching/closing；Oil tank door locking controller, unlatching/closing of the oil tank door for controlling high pressure fuel case according to the control instruction of controller；Controller, control instruction is sent to oil tank door locking controller for unlatching/closing according to gas temperature and gas Stress control fuel tank isolation valve, and according to the adsorbance of canister, and judge whether to need to clean canister.The present invention can effectively reduce EVAP amount of the plug-in hybrid-power automobile under each operating mode, so as to eliminate canister saturation Problem of Failure, reduce pollutant effulent.
Description
Technical field
The present invention relates to automobile technical field, more particularly to a kind of high pressure fuel vapo(u)rization system and its control system, vehicle.
Background technology
With continuing to increase for car ownership, the whole world is faced with that non-regeneration energy is petered out and what environment was continuous worsening asks
Topic.National governments integrate oil consumption and pollutant discharge amount in the development for carrying forward vigorously new-energy automobile to reduce automobile at present,
New-energy automobile industry is also classified as one of seven great strategy new industries by China in " 12 " planning.New energy type at this stage
Automobile primary will include hybrid vehicle, pure electric automobile and fuel cell car, and by cost, technology maturity and match somebody with somebody
The influence for the factors such as Facilities Construction is slow is covered, pure electric automobile and fuel cell car can not all popularize in a short time, and
The dependency degree low preferential hair that has become each automobile vendor of the hybrid vehicle due to technology maturity height and to auxiliary facility
Exhibition item mesh, wherein plug-in hybrid electric vehicle also become because it has lower synthesis oil consumption, more flexible drive pattern
The soldier at the head of a formation of hybrid vehicle exploitation.Although plug-in hybrid electric vehicle is with good energy-saving and emission-reduction performance, but if matching
It is improper to also bring along the problem of new, such as the EVAP control problem under pure electric driving cycle for a long time.Because pure electric walking
It is idle to sail engine under operating mode, and now canister can not be desorbed in time, if using traditional fuel evaporation control system,
When long-time pure motor driving, canister easily saturation fails, and causes EVAP discharge is exceeded to cause fuel loss and environment dirty
Dye.Such as shown in Fig. 1, illustrate the system schematic of traditional fuel evaporation control system.
The content of the invention
In view of this, the present invention is directed to propose a kind of high pressure fuel vapo(u)rization system, it is dynamic that the system can effectively reduce plug-in mixing
EVAP amount of the power automobile under each operating mode, so as to eliminate canister saturation Problem of Failure, reduce pollutant effulent.
To reach above-mentioned purpose, the technical proposal of the invention is realized in this way：
A kind of high pressure fuel vapo(u)rization system, including：Canister, Valve EGR and refueling control switch, in addition to：High pressure fuel
Case；Temperature/pressure sensor, the temperature/pressure sensor are used to detect the gas temperature and gas in the high pressure fuel case
Pressure；Fuel tank isolation valve, the fuel tank isolation valve are used to carry out/tonifying Qi of deflating to the high pressure fuel case in unlatching/closing；
Oil tank door locking controller, the oil tank door locking controller are used to control the high pressure fuel case according to the control instruction of controller
Oil tank door unlatching/closing；And the controller, for according to the gas temperature and gas Stress control fuel tank every
Control instruction is sent to the oil tank door locking controller from unlatching/closing of valve, and according to the adsorbance of canister, and is judged whether
Need to clean the canister.
Further, the fuel tank isolation valve includes：Bidirectional relief valve, the bidirectional relief valve are used to become in the gas pressure
Unlatching/closing when being bordering on upper pressure limit value/low pressure limit value, to carry out/tonifying Qi of deflating to the high pressure fuel case；Magnetic valve, institute
Unlatching/the closing for stating magnetic valve is controlled by the controller, to carry out/tonifying Qi of deflating to the high pressure fuel case.
Further, the controller is used for little in Valve EGR closing, the closing of refueling control switch, the gas pressure
When the upper pressure limit value and the gas pressure are not less than the low pressure limit value, the fuel tank isolation valve is controlled to close.
Further, the controller is additionally operable to open in the Valve EGR or refueling control switch is opened or the gas
When body pressure is not less than low pressure limit value more than upper pressure limit value or the gas pressure, the fuel tank isolation valve is controlled to open,
And when the canister is not up to maximal absorptive capacity, the gas pressure is less than preset pressure and engine is in oiling operating mode, to
The oil tank door locking controller sends the control instruction, so that the oil tank door locking controller controls the oil tank door to open
Open, and again and when closing, judge that the canister needs to clean in the oil tank door, and cleaning canister application is sent to transmitter
Instruction.
Further, the controller is additionally operable to, when the canister reaches maximal absorptive capacity, judge that the canister needs to clean,
And send the application instruction of cleaning canister to transmitter.
Relative to prior art, high pressure fuel vapo(u)rization system of the present invention has the advantage that：
The high pressure fuel vapo(u)rization system of the present invention, the gas temperature and gas in high pressure fuel case are detected by temperature/pressure sensor
Pressure, and according to unlatching/closing of gas temperature and gas Stress control fuel tank isolation valve, and according to the adsorbance of canister to fuel tank
Door locking controller sends control instruction, and judges whether to need to clean canister.I.e. the system introduces the evaporation control of high pressure fuel case
System strategy, fuel-steam control can effectively be reduced into plug-in hybrid vapour in fuel tank in the case where ensureing safety
EVAP amount of the car under each operating mode, so as to eliminate canister saturation Problem of Failure, reduce pollutant effulent.
It is another object of the present invention to propose a kind of vehicle, the vehicle can effectively reduce the EVAP amount under each operating mode,
So as to eliminate canister saturation Problem of Failure, pollutant effulent is reduced.
To reach above-mentioned purpose, the technical proposal of the invention is realized in this way：
A kind of vehicle, it is provided with the high pressure fuel vapo(u)rization system as described in above-mentioned embodiment.
Described vehicle is same relative to Dominant Facies possessed by prior art with above-mentioned high pressure fuel vapo(u)rization system, no longer superfluous herein
State.
It is another object of the present invention to propose a kind of control method of high pressure fuel vapo(u)rization system, this method can be reduced effectively
EVAP amount of the plug-in hybrid-power automobile under each operating mode, so as to eliminate canister saturation Problem of Failure, reduce disposal of pollutants
Thing.
To reach above-mentioned purpose, the technical proposal of the invention is realized in this way：
A kind of control method of high pressure fuel vapo(u)rization system, the high pressure fuel vapo(u)rization system are described in the above embodiment of the present invention
High pressure fuel vapo(u)rization system, the control method comprise the following steps：Detect the gas temperature and gas in the high pressure fuel case
Pressure；According to unlatching/closing of fuel tank isolation valve described in the gas temperature and gas Stress control, with to the high pressure fuel case
Carry out/tonifying Qi of deflating；Detect the adsorbance of the canister；And according to the adsorbance of the canister to the oil tank door lock-in control
Device sends control instruction, and judges whether to need to clean the canister.
Further, unlatching/closing of the fuel tank isolation valve according to the gas temperature and gas Stress control, further
Including：Judge whether the Valve EGR is opened；If the Valve EGR is not opened, the oiling is determined whether
Whether controlling switch opens；If the refueling control switch is not opened, determine whether the gas pressure is more than pressure
Power higher limit；If the gas pressure is not more than the upper pressure limit value, determine whether the gas pressure is less than
Low pressure limit value；If the gas pressure is not less than the low pressure limit value, the fuel tank isolation valve is controlled to close.
Further, in addition to：If the Valve EGR is opened or refueling control switch is opened or the gas pressure
It is not less than low pressure limit value more than upper pressure limit value or the gas pressure, then controls the fuel tank isolation valve to open, goes forward side by side one
Step judges whether the canister reaches maximal absorptive capacity；If the canister is not up to maximal absorptive capacity, determine whether described
Whether gas pressure is less than the preset pressure；If the gas pressure is less than the preset pressure, determine whether to start
Whether machine is in oiling operating mode；If the transmitter is in oiling operating mode, sends and control to the oil tank door locking controller
Instruct so that the oil tank door locking controller opens the oil tank door, and determines whether the oil tank door is re-closing off；
If the oil tank door is closed, judge that the canister needs to clean, and the application instruction of cleaning canister is sent to transmitter.
Further, in addition to：If the canister reaches maximal absorptive capacity, judge that the canister needs to clean, and to hair
Machine is sent to send the application instruction of cleaning canister.
The control method of described high pressure fuel vapo(u)rization system is had with above-mentioned high pressure fuel vapo(u)rization system relative to prior art
Some Dominant Facies are same, will not be repeated here.
Brief description of the drawings
The accompanying drawing for forming the part of the present invention is used for providing a further understanding of the present invention, illustrative examples of the invention and
It illustrates to be used to explain the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 is the system schematic of fuel evaporation control system traditional at present；
Fig. 2 is the structure diagram of the high pressure fuel vapo(u)rization system described in the embodiment of the present invention；
Fig. 3 be the embodiment of the present invention described in high pressure fuel vapo(u)rization system in each electrical appliance module connection diagram；
Fig. 4 is the flow chart of the control method of the high pressure fuel vapo(u)rization system described in the embodiment of the present invention；And
Fig. 5 is the overall flow figure of the control method of the high pressure fuel vapo(u)rization system described in the embodiment of the present invention.
Description of reference numerals：
1- engines, 2- Valve EGRs, 3- canisters, 4- fuel tank isolation valves, 5- oil tank doors, 6- vapo(u)rization systems pipeline, 7- fuel tanks
Door locking controller, 8- oil filling pipes, 9-ICV valves, 10- refueling controls switch, 11- temperature/pressure sensors, 12- high pressure fuels
Case, 13- canisters adsorption tube, 14- oil tank breathers, 15- Normal Fuel-Oil Tanks.
Embodiment
It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the present invention can be mutually combined.
Describe the present invention in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
Fig. 2 is the structure diagram of high pressure fuel vapo(u)rization system according to an embodiment of the invention.Fig. 3 is according to of the invention one
The connection diagram of each electrical appliance module in the high pressure fuel vapo(u)rization system of embodiment.
As shown in Fig. 2 and combine Fig. 3, high pressure fuel vapo(u)rization system according to an embodiment of the invention, including：Canister 3,
Valve EGR 2 and refueling control switch 10, further comprise：High pressure fuel case 12, temperature/pressure sensor 11, oil
Case isolating valve 4, oil tank door locking controller 7 and the (not shown) of controller 20.
Wherein, canister 3 is used to absorb the fuel-steam evaporated from high pressure fuel case 12 in pressure release, refueling process, together
When its be also high pressure fuel case 12 air supply passage.
High pressure fuel case 12 is generally divided into metal fuel tank and plastic fuel tank, metal fuel tank mainly by using high intensity not
Rust steel is welded, and plastic fuel tank is generally by way of increasing inner frame, outer skeleton, wall thickness and use sandwich construction
Strengthen.
Temperature/pressure sensor 11 is used to detect the gas temperature and gas pressure in high pressure fuel case 12.
Fuel tank isolation valve 4 is used to carry out/tonifying Qi of deflating to high pressure fuel case 12 in unlatching/closing.
Specifically, peculiar parts of the fuel tank isolation valve 4 as the high pressure fuel vapo(u)rization system of the embodiment of the present invention, its structure
With the reliability and security of performance direct relation system.In one embodiment of the invention, fuel tank isolation valve 4 for example including
Bidirectional relief valve and magnetic valve, bidirectional relief valve are used for gas pressure in high pressure fuel case 12 and level off to upper pressure limit value/pressure
Unlatching/closing during power lower limit, to carry out/tonifying Qi of deflating to high pressure fuel case 12, wherein, bidirectional relief valve is for example with machinery
Formula bidirectional relief valve；Unlatching/closing of magnetic valve is controlled by controller 20, to carry out/tonifying Qi of deflating to high pressure fuel case, so as to
High pressure fuel case 12 is deflated at any time for realization and tonifying Qi.
Oil tank door 5 of the oil tank door locking controller 7 for controlling high pressure fuel case 12 according to the control instruction of controller 20 is opened
Open/close.Also, only when gas pressure is less than preset pressure (such as 3Kpa), the ability of oil tank door locking controller 7
It is intended to perform the open function of oil tank door 5 according to operating personnel, prevents high pressure fuel case 12 is opened in high pressure conditions from firing
Oil damages to operating personnel from the outside splash of filler or even security incident occurs.
Controller 20 is used for unlatching/closing according to gas temperature and gas Stress control fuel tank isolation valve 4, and according to canister 3
Adsorbance send control instruction to oil tank door locking controller 7, and judge whether to need to clean canister 3.In other words, with reference to
Shown in Fig. 3, i.e., controller 20 (i.e. tank pressure control module) collects according to temperature/pressure sensor 11 gas pressure
Signal, gas temperature signal, and fueling signal are confirmed whether to need emergency deflation or tonifying Qi, can also pass through gas in addition
Pressure, temperature gap adjust canister adsorbance, and input is provided so as to be desorbed strategy execution for engine.
Specifically, controller 20 is used to closing in Valve EGR 2, refueling control switch 10 is closed, gas pressure is not more than
Upper pressure limit value P1 (the maximum allowable stress of high pressure fuel case 12) and gas pressure is not less than low pressure limit value P2 (high pressures
The minimum pressure that fuel tank 12 is born) when, control fuel tank isolation valve 4 is closed.
Further, controller 20 is additionally operable to open in Valve EGR 2 or refueling control switch 10 is opened or gas pressure
When power is more than upper pressure limit value P1 or gas pressure and be not less than low pressure limit value P2, fuel tank isolation valve 4 is controlled to open, and
When canister 3 is not up to maximal absorptive capacity, gas pressure is less than preset pressure (such as 3Kpa) and engine is in oiling operating mode,
Control instruction is sent to oil tank door locking controller 7, so that oil tank door locking controller 7 controls oil tank door 5 to open, and in oil
Chamber door 5 judges that canister 3 needs to clean again and when closing, and sends the application instruction of cleaning canister to transmitter, with to canister
3 are cleaned.
On the other hand, controller 20 is additionally operable to when canister 3 reaches maximal absorptive capacity, judges that canister 3 needs to clean, and to
Transmitter sends the application instruction of cleaning canister, to be cleaned to canister 3.
To sum up, high pressure fuel vapo(u)rization system according to embodiments of the present invention, detected by temperature/pressure sensor in high pressure fuel case
Gas temperature and gas pressure, and according to unlatching/closing of gas temperature and gas Stress control fuel tank isolation valve, and according to carbon
The adsorbance of tank sends control instruction to oil tank door locking controller, and judges whether to need to clean canister.I.e. the system introduces
High pressure fuel case evaporation control strategy, fuel-steam control can be reduced effectively in fuel tank in the case where ensureing safety
EVAP amount of the plug-in hybrid-power automobile under each operating mode, so as to eliminate canister saturation Problem of Failure, reduce disposal of pollutants
Thing.
Further, embodiment of the invention discloses that a kind of vehicle, the vehicle are provided with the high pressure fuel described in above-described embodiment
Vapo(u)rization system.The vehicle detects gas temperature and gas pressure in high pressure fuel case by temperature/pressure sensor, and according to gas
Unlatching/closing of temperature and gas Stress control fuel tank isolation valve, and sent out according to the adsorbance of canister to oil tank door locking controller
Control instruction is sent, and judges whether to need to clean canister.High pressure fuel case evaporation control strategy is introduced, is ensureing safety
In the case of by fuel-steam control in fuel tank, can effectively reduce fuel oil of the plug-in hybrid-power automobile under each operating mode and steam
Hair amount, so as to eliminate canister saturation Problem of Failure, reduce pollutant effulent.
In addition, other compositions of vehicle according to embodiments of the present invention and effect are for the ordinary skill in the art all
It is known, in order to reduce redundancy, does not repeat.
Further, embodiments of the invention also disclose a kind of control method of high pressure fuel vapo(u)rization system.
Fig. 4 is the flow chart of the control method of high pressure fuel vapo(u)rization system according to an embodiment of the invention.Fig. 5 is according to this
The overall flow figure of the control method of the high pressure fuel vapo(u)rization system of invention one embodiment.Wherein, the high pressure fuel vapo(u)rization system
High pressure fuel vapo(u)rization system for example, described by the above embodiment of the present invention.Based on this, with reference to shown in Fig. 4 and Fig. 5, the control
Method processed comprises the following steps：
Step S1：Detect the gas temperature and gas pressure in high pressure fuel case.Wherein, for example with temperature/pressure sensor
Detect the gas temperature and gas pressure in high pressure fuel case.High pressure fuel case 12 is generally divided into metal fuel tank and plastics fuel oil
Case, metal fuel tank are mainly welded by using high-strength stainless steel, and plastic fuel tank generally by increase inner frame,
Outer skeleton, wall thickness and strengthened by the way of sandwich construction.
Step S2：According to unlatching/closing of gas temperature and gas Stress control fuel tank isolation valve, to be carried out to high pressure fuel case
Deflation/tonifying Qi.Specifically, peculiar parts of the fuel tank isolation valve as the high pressure fuel vapo(u)rization system of the embodiment of the present invention, its
The reliability and security of structure and performance direct relation system.In one embodiment of the invention, fuel tank isolation valve for example wraps
Include mechanical double-way safety valve and magnetic valve, the gas pressure that mechanical double-way safety valve is used in high pressure fuel case levels off to pressure
Unlatching/closing during power higher limit/low pressure limit value, to carry out/tonifying Qi of deflating to high pressure fuel case；Unlatching/closing of magnetic valve is by controlling
Device control processed, to carry out/tonifying Qi of deflating to high pressure fuel case, high pressure fuel case is deflated at any time and tonifying Qi so as to realize.
Step S3：Detect the adsorbance of canister.Specifically, canister is used to absorb in pressure release, refueling process from high pressure fuel
The fuel-steam evaporated in case, while it is also the air supply passage of high pressure fuel case.
Step S4：Control instruction is sent to oil tank door locking controller according to the adsorbance of canister, and judges whether to need to clean
Canister.Specifically, oil tank door locking controller is for the oil tank door according to the control instruction of controller control high pressure fuel case
Unlatching/closing.Also, only when gas pressure is less than preset pressure (such as 3Kpa), oil tank door locking controller ability
It is intended to perform the open function of oil tank door according to operating personnel, prevents high pressure fuel case from opening generation fuel oil in high pressure conditions from adding
The outside splash of geat, operating personnel are damaged or even security incident occurs.
In one embodiment of the invention, in step s 2, according to gas temperature and gas Stress control fuel tank isolation valve
Unlatching/closing, further comprises：Judge whether Valve EGR is opened；If Valve EGR is not opened, determine whether
Whether refueling control switch is opened；If refueling control switch is not opened, determine whether gas pressure is more than in pressure
Limit value；If gas pressure is not more than upper pressure limit value, determine whether gas pressure is less than low pressure limit value；If
Gas pressure is not less than low pressure limit value, then controls fuel tank isolation valve to close.
Further, in addition to：If Valve EGR is opened or refueling control switch is opened or gas pressure is more than pressure
(high pressure fuel case is born not less than low pressure limit value for higher limit (the maximum allowable stress of high pressure fuel case) or gas pressure
Minimum pressure), then control fuel tank isolation valve to open, and determine whether canister reaches maximal absorptive capacity；If canister
Not up to maximal absorptive capacity, then determine whether gas pressure is less than preset pressure (such as 3Kpa)；If gas pressure is small
In preset pressure, then determine whether engine is in oiling operating mode；If transmitter is in oiling operating mode, to fuel tank
Door locking controller sends control instruction so that oil tank door locking controller opens oil tank door, and determines whether oil tank door weighs
It is new to close；If oil tank door is closed, judge that canister needs to clean, and the application instruction of cleaning canister is sent to transmitter, with right
Canister is cleaned.
Further, if canister reaches maximal absorptive capacity, judge that canister needs to clean, and cleaning canister is sent to transmitter
Application instruction, to be cleaned to canister.
To sum up, the control method of high pressure fuel vapo(u)rization system according to embodiments of the present invention, detected by temperature/pressure sensor high
Gas temperature and gas pressure in compression ignition fuel tank, and according to unlatching/pass of gas temperature and gas Stress control fuel tank isolation valve
Close, and control instruction is sent to oil tank door locking controller according to the adsorbance of canister, and judge whether to need to clean canister.I.e.
The control method introduces high pressure fuel case evaporation control strategy, controls fuel-steam in fuel tank in the case where ensureing safety
It is interior, EVAP amount of the plug-in hybrid-power automobile under each operating mode can be effectively reduced, is asked so as to eliminate the failure of canister saturation
Topic, reduce pollutant effulent.
It should be noted that the specific implementation of the control method of the high pressure fuel vapo(u)rization system of the embodiment of the present invention and the present invention
The specific implementation of the high pressure fuel vapo(u)rization system of embodiment is similar, specifically refers to the description of components of system as directed, superfluous in order to reduce
It is remaining, do not repeat.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in the spiritual and former of the present invention
Within then, any modification, equivalent substitution and improvements made etc., it should be included in the scope of the protection.
Claims (10)
1. a kind of high pressure fuel vapo(u)rization system, including：Canister, Valve EGR and refueling control switch, it is characterised in that
Also include：
High pressure fuel case；
Temperature/pressure sensor, the temperature/pressure sensor are used to detect the gas temperature and gas in the high pressure fuel case
Pressure；
Fuel tank isolation valve, the fuel tank isolation valve are used to carry out/tonifying Qi of deflating to the high pressure fuel case in unlatching/closing；
Oil tank door locking controller, the oil tank door locking controller are used to control the high compression ignition according to the control instruction of controller
Unlatching/closing of the oil tank door of fuel tank；And
The controller, for unlatching/closing of the fuel tank isolation valve according to the gas temperature and gas Stress control, and root
Control instruction is sent to the oil tank door locking controller according to the adsorbance of canister, and judges whether to need to clean the canister.
2. high pressure fuel vapo(u)rization system according to claim 1, it is characterised in that the fuel tank isolation valve includes：
Bidirectional relief valve, the bidirectional relief valve are used to open when the gas pressure levels off to upper pressure limit value/low pressure limit value
/ close, to carry out/tonifying Qi of deflating to the high pressure fuel case；
Magnetic valve, unlatching/closing of the magnetic valve are controlled by the controller, to the high pressure fuel case deflate/mend
Gas.
3. high pressure fuel vapo(u)rization system according to claim 2, it is characterised in that the controller is used in canister electricity
Magnet valve is closed, refueling control switch is closed, the gas pressure is not less than no more than the upper pressure limit value and the gas pressure
During the low pressure limit value, the fuel tank isolation valve is controlled to close.
4. high pressure fuel vapo(u)rization system according to claim 3, it is characterised in that the controller is additionally operable to described
Valve EGR is opened or refueling control switch is opened or the gas pressure is more than upper pressure limit value or the gas pressure
During not less than low pressure limit value, the fuel tank isolation valve is controlled to open, and maximal absorptive capacity, the gas are not up in the canister
When body pressure be in oiling operating mode less than preset pressure and engine, send described control to the oil tank door locking controller and refer to
Order, so that the oil tank door locking controller controls the oil tank door to open, and again and when closing, judge in the oil tank door
The canister needs to clean, and sends the application instruction of cleaning canister to transmitter.
5. high pressure fuel vapo(u)rization system according to claim 4, it is characterised in that the controller is additionally operable to described
When canister reaches maximal absorptive capacity, judge that the canister needs to clean, and the application instruction of cleaning canister is sent to transmitter.
6. a kind of vehicle, it is characterised in that the high pressure fuel vapo(u)rization system described in just like claim any one of 1-5 is set.
7. a kind of control method of high pressure fuel vapo(u)rization system, it is characterised in that the high pressure fuel vapo(u)rization system is according to power
Profit requires the high pressure fuel vapo(u)rization system described in any one of 1-5, and the control method comprises the following steps：
Detect the gas temperature and gas pressure in the high pressure fuel case；
According to unlatching/closing of fuel tank isolation valve described in the gas temperature and gas Stress control, to enter to the high pressure fuel case
Row deflation/tonifying Qi；
Detect the adsorbance of the canister；And
Control instruction is sent to the oil tank door locking controller according to the adsorbance of the canister, and judges whether to need to clean institute
State canister.
8. high pressure fuel vapo(u)rization system according to claim 7, it is characterised in that it is described according to the gas temperature and
Gas pressure controls unlatching/closing of the fuel tank isolation valve, further comprises：
Judge whether the Valve EGR is opened；
If the Valve EGR is not opened, determine whether the refueling control switch is opened；
If the refueling control switch is not opened, determine whether the gas pressure is more than upper pressure limit value；
If the gas pressure is not more than the upper pressure limit value, determine whether the gas pressure is less than under pressure
Limit value；
If the gas pressure is not less than the low pressure limit value, the fuel tank isolation valve is controlled to close.
9. high pressure fuel vapo(u)rization system according to claim 8, it is characterised in that also include：
If the Valve EGR is opened or refueling control switch is opened or the gas pressure be more than upper pressure limit value or
The gas pressure is not less than low pressure limit value, then controls the fuel tank isolation valve to open, and whether determine whether the canister
Reach maximal absorptive capacity；
If the canister is not up to maximal absorptive capacity, determine whether the gas pressure is less than the preset pressure；
If the gas pressure is less than the preset pressure, determine whether engine is in oiling operating mode；
If the transmitter is in oiling operating mode, control instruction is sent so that the fuel tank to the oil tank door locking controller
Door locking controller opens the oil tank door, and determines whether the oil tank door is re-closing off；
If the oil tank door is closed, judge that the canister needs to clean, and the application instruction of cleaning canister is sent to transmitter.
10. the control method of high pressure fuel vapo(u)rization system according to claim 9, it is characterised in that also include：
If the canister reaches maximal absorptive capacity, judge that the canister needs to clean, and cleaning canister Shen is sent to transmitter
It please instruct.
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| CN201610486195.4A CN107542598B (en) | 2016-06-28 | 2016-06-28 | High pressure fuel vapo(u)rization system and its control method, vehicle |
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| CN108915906A (en) * | 2018-08-24 | 2018-11-30 | 亚普汽车部件股份有限公司 | A kind of electronic control module for high-pressure fuel oil system |
| CN109113879A (en) * | 2018-07-06 | 2019-01-01 | 联合汽车电子有限公司 | Petrol engine canister flush control method and system |
| CN109553056A (en) * | 2018-12-28 | 2019-04-02 | 上海汽车集团股份有限公司 | Refueling control method for automobile pressure-oil tank |
| CN109552027A (en) * | 2019-01-24 | 2019-04-02 | 朱超 | A kind of automatically controlled fuel system |
| CN110385981A (en) * | 2019-06-26 | 2019-10-29 | 江铃汽车股份有限公司 | Hybrid vehicle pressure-oil tank and pressure-oil tank system |
| CN111691995A (en) * | 2020-06-23 | 2020-09-22 | 奇瑞汽车股份有限公司 | Fuel steam control method and device |
| CN112360650A (en) * | 2020-10-22 | 2021-02-12 | 亚普汽车部件股份有限公司 | Pressure relief control method before filling of fuel system and fuel system |
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| CN109553056A (en) * | 2018-12-28 | 2019-04-02 | 上海汽车集团股份有限公司 | Refueling control method for automobile pressure-oil tank |
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| CN111691995B (en) * | 2020-06-23 | 2022-05-03 | 奇瑞汽车股份有限公司 | Fuel steam control method and device |
| CN111691995A (en) * | 2020-06-23 | 2020-09-22 | 奇瑞汽车股份有限公司 | Fuel steam control method and device |
| CN112360650A (en) * | 2020-10-22 | 2021-02-12 | 亚普汽车部件股份有限公司 | Pressure relief control method before filling of fuel system and fuel system |
| CN112428818A (en) * | 2020-11-27 | 2021-03-02 | 亚普汽车部件股份有限公司 | Control method for gun skip and replenishment of fuel system and electric control fuel system |
| CN112594096A (en) * | 2020-12-09 | 2021-04-02 | 亚普汽车部件股份有限公司 | Electric control valve, electric control fuel system and control method |
| CN113847175A (en) * | 2021-09-16 | 2021-12-28 | 江西昌河汽车有限责任公司 | Pressure adjusting structure and method for high-pressure fuel system |
| CN114165366A (en) * | 2021-12-10 | 2022-03-11 | 安徽江淮汽车集团股份有限公司 | Control method for high-pressure oil tank system of hybrid electric vehicle |
| CN115142971A (en) * | 2022-07-26 | 2022-10-04 | 东风小康汽车有限公司重庆分公司 | Fuel control method and system of extended range type automobile |
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