CN107345504A - For the system and gas-fueled vehicles of the natural gas quality for determining gas-fueled vehicles - Google Patents
For the system and gas-fueled vehicles of the natural gas quality for determining gas-fueled vehicles Download PDFInfo
- Publication number
- CN107345504A CN107345504A CN201710294182.1A CN201710294182A CN107345504A CN 107345504 A CN107345504 A CN 107345504A CN 201710294182 A CN201710294182 A CN 201710294182A CN 107345504 A CN107345504 A CN 107345504A
- Authority
- CN
- China
- Prior art keywords
- natural gas
- engine
- gas
- liquid level
- fueled vehicles
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 96
- 239000003345 natural gas Substances 0.000 title claims abstract description 44
- 239000007788 liquid Substances 0.000 claims abstract description 34
- 238000002485 combustion reaction Methods 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 5
- 238000003908 quality control method Methods 0.000 claims description 2
- 239000007789 gas Substances 0.000 abstract description 8
- 239000003949 liquefied natural gas Substances 0.000 description 11
- 238000000034 method Methods 0.000 description 9
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000013589 supplement Substances 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 210000004602 germ cell Anatomy 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/0025—Controlling engines characterised by use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
- F02D41/0027—Controlling engines characterised by use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures the fuel being gaseous
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/24—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means
- F02D41/2406—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means using essentially read only memories
- F02D41/2425—Particular ways of programming the data
- F02D41/2429—Methods of calibrating or learning
- F02D41/2451—Methods of calibrating or learning characterised by what is learned or calibrated
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D19/00—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
- F02D19/02—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with gaseous fuels
- F02D19/026—Measuring or estimating parameters related to the fuel supply system
- F02D19/029—Determining density, viscosity, concentration or composition
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/24—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means
- F02D41/2406—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means using essentially read only memories
- F02D41/2425—Particular ways of programming the data
- F02D41/2429—Methods of calibrating or learning
- F02D41/2441—Methods of calibrating or learning characterised by the learning conditions
- F02D41/2445—Methods of calibrating or learning characterised by the learning conditions characterised by a plurality of learning conditions or ranges
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D2200/00—Input parameters for engine control
- F02D2200/02—Input parameters for engine control the parameters being related to the engine
- F02D2200/06—Fuel or fuel supply system parameters
- F02D2200/0611—Fuel type, fuel composition or fuel quality
- F02D2200/0612—Fuel type, fuel composition or fuel quality determined by estimation
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/30—Use of alternative fuels, e.g. biofuels
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
Abstract
The invention discloses a kind of system for being used to determine the natural gas quality of gas-fueled vehicles, the system includes：Be adapted at least to measure the elevated liquid level sensor of natural gas liquid level (3) in the liquified natural gas tank (2) of gas-fueled vehicles；And it is configured to be suitable to obtain at least one running parameter of engine (4) and suitable for obtaining electronic control unit (1) of the elevated signal of liquid level as study request signal from liquid level sensor (3) from the engine (4) of gas-fueled vehicles；Wherein, the electronic control unit (1) is further constructed to be suitable to receiving study request signal and engine (4) meets to determine natural gas quality based on the running parameter in the state of predetermined condition for study.The invention also discloses a kind of gas-fueled vehicles for including the system.According to the present invention it is possible to provide more accurate natural gas quality information, the control and selection gas station for engine provide foundation.
Description
Technical field
The present invention relates to a kind of system for being used to determine the natural gas quality of gas-fueled vehicles and one kind to include this germline
The gas-fueled vehicles of system.
Background technology
As modern society is to the pay attention to day by day of environmental protection, the eco-friendly car of fuel, i.e. day are used as using natural gas
Right gas automobile is increasingly subject to the favor of people.
Gas-fueled vehicles with its low emission, suppress greenhouse effects and break away from dependence this three big characteristic to oil, it is just alive
Popularized and promoted in the range of boundary, turn into an important directions of current automobile industry development.At present, the natural gas vapour in China
Car is also significantly developed, and has been begun to take shape in many cities.
It is well known that gas-fueled vehicles it is usually used be liquefied natural gas, i.e. natural gas is pressurized to storage in liquid and existed
In liquified natural gas tank.For same automobile, the liquefied natural gas that fills every time due to a variety of causes, such as region,
Difference of gas station etc. can have quality discrepancy.These quality discrepancies can influence performance and the discharge of the engine of automobile, such as
Engine, which can not be actively controlled, makes it always work under kilter.
However, in this case, not targetedly solution party's method and counter-measure, or even can not be accurately pre- at present
Estimate the quality that liquified natural gas tank fills the liquefied natural gas of the mixing formed after new liquefied natural gas in supplement.In this feelings
Under condition, some operational factors of engine can not be adjusted according to the quality of natural gas naturally, so as to be operated in engine
In the state of good.
Therefore, active demand can automatically determine the quality of liquefied natural gas, particularly fill newly natural each
Quality after gas.After the quality of liquefied natural gas is accurately determined, control to engine can be optimized and to driving
Personnel provide the information of the natural gas quality about added note.
The content of the invention
It is an object of the invention to provide a kind of system for being used to determine the natural gas quality of gas-fueled vehicles and a kind of bag
The gas-fueled vehicles of this system are included, to overcome above-mentioned a variety of deficiencies of the prior art.
According to the first aspect of the invention, there is provided a kind of to be for determine the natural gas quality of gas-fueled vehicles
System, the system include：Be adapted at least to measure the elevated liquid level of natural gas liquid level in the liquified natural gas tank of gas-fueled vehicles
Sensor；And it is configured to be suitable to obtain at least one running parameter of engine from the engine of gas-fueled vehicles and be suitable to
Electronic control unit of the elevated signal of liquid level as study request signal is obtained from liquid level sensor；Wherein, the electronics control
Unit processed is further constructed to be suitable to receiving study request signal and engine meets the state of predetermined condition for study
Natural gas quality is determined based on the running parameter down.
According to the alternative embodiment of the present invention, the system also includes being suitable to what the electronic control unit was connected
Show the display device of natural gas quality information.
According to the alternative embodiment of the present invention, the display device is automobile instrument panel.
According to the alternative embodiment of the present invention, the predetermined condition for study includes：1) it is adapted to detect for engine
The lambda sensor of the concentration of combustion mixture is working properly；2) load of engine is in the range of predetermined load；And 3) start
The rotating speed of machine is in the range of desired speed.
According to the alternative embodiment of the present invention, the predetermined condition for study also includes：4) lambda sensor
Measured value is within a predetermined range.
According to the alternative embodiment of the present invention, the electronic control unit is further constructed to be suitable to based on determination
Natural gas quality control engine operation；And/or the liquid level sensor is that the liquid level for being adapted to determine that natural gas liquid level passes
Sensor.
According to the alternative embodiment of the present invention, the running parameter is the combustion mixture for being adapted to detect for engine
The measured value of the lambda sensor of concentration.
According to the alternative embodiment of the present invention, the running parameter is the running parameter in the scheduled time.
According to the alternative embodiment of the present invention, the scheduled time is 2 minutes.
According to the second aspect of the invention, there is provided a kind of gas-fueled vehicles, wherein, the gas-fueled vehicles include institute
State system.
By the self study process of natural gas quality, more accurate natural gas quality information can be provided, is engine
Control and selection gas station provide foundation.
Brief description of the drawings
Below, by the way that the present invention is more fully described referring to accompanying drawing, may be better understood the principle of the present invention, feature and
Advantage.Accompanying drawing includes：
Fig. 1 shows the natural gas quality for being used to determine gas-fueled vehicles according to one exemplary embodiment of the present invention
System general principle sketch.
Embodiment
In order that the technical problems to be solved by the invention, technical scheme and beneficial technique effect are more clear bright
In vain, below with reference to accompanying drawing and multiple embodiments, the present invention will be described in further detail.It is it should be appreciated that described herein
Specific embodiment be only used for explaining the present invention, rather than for limiting protection scope of the present invention.
Fig. 1 shows the natural gas quality for being used to determine gas-fueled vehicles according to one exemplary embodiment of the present invention
System general principle sketch.
As shown in figure 1, the system includes electronic control unit (ECU) 1 and can measured natural in liquified natural gas tank 2
The liquid level sensor 3 of gas-liquid position.Electronic control unit 1 can obtain a few thing parameter of engine from engine 4, such as
Communicated to connect with some sensors in engine 4.Electronic control unit 1 can also obtain from liquid level sensor 3 to be believed
Number.The system further preferably includes the display device 5 being connected with electronic control unit 1.
When gas-fueled vehicles work, liquified natural gas tank 2 is to the feed liquefied natural gas of engine 4, so that engine 4 can
Fuel work is used as using natural gas.Electronic control unit 1 can also preferably control the operation of engine 4, such as engine 4 is natural
The injection of gas jets.The natural gas quality that the display device 5 is used to by corresponding information, for example be calculated is sent to display dress
Put 5.Display device 5 is preferably automobile instrument panel.
Liquid level sensor 3 can be, for example, ultrasonic sensor, can also use other any suitable sensors certainly.
Liquid level sensor 3 can measure the liquid level of liquefied natural gas on one's own initiative, can also be passively under electronic control unit 1
The liquid level of control measurement liquefied natural gas.According to an exemplary embodiment, it is only necessary to which liquid level sensor 3 can be natural in liquefaction
A study request signal is sent to electronic control unit 1 when gas-liquid position raises, because usual liquefied natural gas
Quality can just change when filling new natural gas.It is therefore preferable that just enter during running car after filling natural gas every time
The self study of row natural gas quality.Certainly, other liquid levels that liquefied natural gas can be also monitored by liquid level sensor 3 change, example
Such as judge whether liquid level is too low.
As described above, it is preferred to the self study of natural gas quality is just carried out during running car after filling natural gas every time, because
This, electronic control unit 1 is not to carry out self study immediately after the study request signal that liquid level sensor 3 sends is received, and
It is that self study is just carried out in subsequent running car.In order to ensure the reliability of self study, self study is also full in engine 4
Just proceeded by during predetermined condition for study enough.In other words, only when electronic control unit 1 judges the related work of engine 4
Parameter meets the self study process for just starting natural gas quality during predetermined condition for study.
Predetermined condition for study can determine as the case may be, as long as can be beneficial to the reliability and essence for improving self study
True property.For example, predetermined condition for study can include following condition：1) be used for detect engine combustion mixture it is dense
The lambda sensor of degree is working properly；2) load of engine is within a predetermined range；And 3) rotating speed of engine in preset range
It is interior.According to a preferable exemplary embodiment, predetermined condition for study also includes an additional conditions：4) survey of lambda sensor
Value is within a predetermined range.
Obviously, the above-mentioned accretion learning condition enumerated only is exemplary, for those skilled in the art, completely
It can supplement and set other additional condition for studies or replace above-mentioned additional condition for study using other additional condition for studies.
When meeting predetermined condition for study, start the self study process of natural gas quality.According to an exemplary implementation
Example, self study process can be by formula k=k1×f1+k2×f2Carry out, wherein, k is the study knot that can reflect natural gas quality
Fruit variable, k1For steady-state variable, f1For stable state regulation coefficient, k2For dynamic variable, f2For dynamic regulation coefficient.Preferably, f1Greatly
In f2, so as to make learning process more reliable.It is further preferable that f1For f2More than five times.
Self study process is preferably completed in the given time upon actuation, i.e. based on the engine obtained in the scheduled time
Relevant operating parameter carry out self study.During the scheduled time can be described as study.According to an exemplary embodiment, pre- timing
Between be 2 minutes.
According to the optional exemplary embodiment of the present invention, k1For the equal of oxygen sensor signal interior during study
Value, k2For oxygen sensor signal instantaneous value relative to the average variable quantity.Certainly, come for those skilled in the art
Say, it is not excluded that self study is carried out using other suitable engine operating parameters, as long as learning outcome can correctly reflect day
Right gas quality.
On the one hand learning outcome can be used for the operation for controlling engine, on the other hand can also be output to display device 5,
To be presented to human pilot.Preferably, learning outcome shows after being converted into the parameter that more can intuitively reflect natural gas quality
Show on instrument board.Human pilot can judge filled natural gas quality according to display result, and then may determine that aerating
The quality stood, so as to provide reference frame for follow-up aerating selection.
The basic thought of the present invention is, by being sent out by the liquid level sensor of the natural gas liquid level in measurement liquified natural gas tank
The study request signal gone out, the self study process of natural gas quality is triggered in the case where meeting predetermined condition for study, and then can be carried
For more accurate natural gas quality information, control and selection gas station for engine provide foundation.
Although only certain exemplary embodiments of this invention is described in detail here, they give just for the sake of the purpose explained
Go out, and it is not considered that they are construed as limiting to the scope of the present invention.Without departing from the spirit and scope of the present invention, respectively
Kind is replaced, change and transformation can be contemplated out.
Claims (10)
1. a kind of system for being used to determine the natural gas quality of gas-fueled vehicles, it is characterised in that the system includes：
Be adapted at least to measure the elevated liquid level sensor of natural gas liquid level (3) in the liquified natural gas tank (2) of gas-fueled vehicles；
And
It is configured to be suitable to obtain at least one running parameter of engine (4) from the engine (4) of gas-fueled vehicles and be suitable to
Electronic control unit (1) of the elevated signal of liquid level as study request signal is obtained from liquid level sensor (3)；
Wherein, the electronic control unit (1) is further constructed to be suitable to receiving study request signal and engine (4)
Meet to determine natural gas quality based on the running parameter in the state of predetermined condition for study.
2. the system as claimed in claim 1, it is characterised in that
The system also includes the display device for being suitable to display natural gas quality information being connected with the electronic control unit (1)
(5)。
3. system as claimed in claim 2, it is characterised in that
The display device (5) is automobile instrument panel.
4. the system as described in any in claim 1-3, it is characterised in that
The predetermined condition for study includes：1) it is adapted to detect for the lambda sensor work of the concentration of the combustion mixture of engine (4)
Make normal；2) load of engine (4) is in the range of predetermined load；And 3) rotating speed of engine (4) in desired speed scope
It is interior.
5. system as claimed in claim 3, it is characterised in that
The predetermined condition for study also includes：4) measured value of the lambda sensor is within a predetermined range.
6. the system as described in any in claim 1-3,5, it is characterised in that
The electronic control unit (1) is further constructed to be suitable to the natural gas quality control engine (4) based on determination
Operation；And/or
The liquid level sensor is the liquid level sensor for being adapted to determine that natural gas liquid level.
7. the system as described in any in claim 1-3,5, it is characterised in that
The running parameter is the measured value of the lambda sensor of the concentration for the combustion mixture for being adapted to detect for engine (4).
8. the system as described in any in claim 1-3,5, it is characterised in that
The running parameter is the running parameter in the scheduled time.
9. system as claimed in claim 8, it is characterised in that
The scheduled time is 2 minutes.
A kind of 10. gas-fueled vehicles, it is characterised in that the gas-fueled vehicles include any in claim 1-9 described be
System.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620393679X | 2016-05-04 | ||
| CN201620393679 | 2016-05-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107345504A true CN107345504A (en) | 2017-11-14 |
Family
ID=60119566
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710294182.1A Pending CN107345504A (en) | 2016-05-04 | 2017-04-28 | For the system and gas-fueled vehicles of the natural gas quality for determining gas-fueled vehicles |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN107345504A (en) |
| DE (1) | DE102017207212A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109026408A (en) * | 2018-10-09 | 2018-12-18 | 广西玉柴机器股份有限公司 | Judge automatically the system and method for gas component |
| CN109488470A (en) * | 2018-11-26 | 2019-03-19 | 潍柴动力股份有限公司 | A kind of method and device adjusting air-fuel ratio |
| CN115076601A (en) * | 2022-05-10 | 2022-09-20 | 潍柴动力股份有限公司 | Method, device and system for detecting credibility of residual liquid level of gas tank |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100312459A1 (en) * | 2007-12-17 | 2010-12-09 | Toyota Jidosha Kabushiki Kaisha | Internal combustion engine controller |
| CN102628408A (en) * | 2011-02-07 | 2012-08-08 | 奥迪股份公司 | Method and device for identifying the fuel quality in a fuel tank of an internal combustion engine |
| CN105114192A (en) * | 2014-05-26 | 2015-12-02 | 罗伯特·博世有限公司 | Method for operating motor vehicle internal combustion engine through the operation of natural gas |
-
2017
- 2017-04-28 CN CN201710294182.1A patent/CN107345504A/en active Pending
- 2017-04-28 DE DE102017207212.1A patent/DE102017207212A1/en not_active Withdrawn
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100312459A1 (en) * | 2007-12-17 | 2010-12-09 | Toyota Jidosha Kabushiki Kaisha | Internal combustion engine controller |
| CN102628408A (en) * | 2011-02-07 | 2012-08-08 | 奥迪股份公司 | Method and device for identifying the fuel quality in a fuel tank of an internal combustion engine |
| CN105114192A (en) * | 2014-05-26 | 2015-12-02 | 罗伯特·博世有限公司 | Method for operating motor vehicle internal combustion engine through the operation of natural gas |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109026408A (en) * | 2018-10-09 | 2018-12-18 | 广西玉柴机器股份有限公司 | Judge automatically the system and method for gas component |
| CN109488470A (en) * | 2018-11-26 | 2019-03-19 | 潍柴动力股份有限公司 | A kind of method and device adjusting air-fuel ratio |
| CN109488470B (en) * | 2018-11-26 | 2022-04-05 | 潍柴动力股份有限公司 | Method and device for adjusting air-fuel ratio |
| CN115076601A (en) * | 2022-05-10 | 2022-09-20 | 潍柴动力股份有限公司 | Method, device and system for detecting credibility of residual liquid level of gas tank |
| CN115076601B (en) * | 2022-05-10 | 2024-02-20 | 潍柴动力股份有限公司 | Method, device and system for detecting reliability of residual liquid level of gas tank |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102017207212A1 (en) | 2017-11-09 |
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| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20171114 |
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| RJ01 | Rejection of invention patent application after publication |