CN105937451A - Method of controlling transmission of fuel from two separated fuel tank systems - Google Patents
Method of controlling transmission of fuel from two separated fuel tank systems Download PDFInfo
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- CN105937451A CN105937451A CN201610122807.1A CN201610122807A CN105937451A CN 105937451 A CN105937451 A CN 105937451A CN 201610122807 A CN201610122807 A CN 201610122807A CN 105937451 A CN105937451 A CN 105937451A
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- combustion engine
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- biodiesel
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Classifications
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- 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
- F02D19/06—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 pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed
- F02D19/08—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 pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed simultaneously using pluralities of fuels
- F02D19/081—Adjusting the fuel composition or mixing ratio; Transitioning from one fuel to the other
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- 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
- F02D19/06—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 pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed
- F02D19/08—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 pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed simultaneously using pluralities of fuels
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
- F02M37/0047—Layout or arrangement of systems for feeding fuel
- F02M37/0064—Layout or arrangement of systems for feeding fuel for engines being fed with multiple fuels or fuels having special properties, e.g. bio-fuels; varying the fuel composition
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
- F02M37/0076—Details of the fuel feeding system related to the fuel tank
- F02M37/0088—Multiple separate fuel tanks or tanks being at least partially partitioned
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
- F02M37/04—Feeding by means of driven pumps
- F02M37/041—Arrangements for driving gear-type pumps
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- 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
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
Abstract
The invention relates to a method of controlling transmission of fuel from two separated fuel tank systems (1,2) to a motor vehicle internal combustion engine (3), and a control unit (7,8), wherein the first fuel tank system (1) includes first fuel and the second fuel tank system (2) includes second fuel different from the first fuel tank system (1), wherein the portion of the first fuel is adjusted according to the ratio of running parameters of an internal combustion engine obtained at least through a forecasting mode relative to the portion of the second fuel.
Description
Technical field
The present invention relates to a kind of for for carrying, from two separate fuel tank systems to the fuel of internal combustion engine of motor vehicle spraying system, the method being controlled.
Background technology
The motor vehicles with two fuel tank systems often represents commercial vehicle truck in other words, and described commercial vehicle requires according to the situation in the structure in car and haul distance and has two separate fuel tank systems.The different design of fuel conveying is there is at this.Can there is petrolift in one of described fuel tank, wherein said two fuel tanks are connected to each other by fuel conduit.As an alternative, can there is petrolift in so-called " fuel tank module ", wherein said two main fuel tanks are connected by the ejector pump fluidly connected.Finally can exist two separate, be respectively provided with the fuel tank of a transfer petrolift the most modulated, wherein use regulated main fuel pump.
In conventional low-pressure system, particularly with the pre-delivery pump using machinery for commerial vehicle (commercial vehicle).The gear pump of machinery is such as currently replaced by electrodynamic pump, the most electronic gear pump.Thus by rise disorder of internal organs to carry in advance by the fuel of electronic petrolift and obtain, the advantage of the advantage of quickly available property and mechanical gear pump, hydraulic pressure efficiency is united.Furthermore, it is possible to carry out fuel conveying according to demand.Electronic (gear) pump needs the control/governor motion of self, and has electronic installation for this purpose, and this electronic installation can be integrated in described pump.
As fuel, it is possible to use biodiesel and/or petrifaction diesel.Biodiesel (being seldom referred to as biodiesel (Agrodiesel)) represents the fatty acid methyl ester of chemistry and is a kind of fuel, and this fuel is in use comparable to the diesel fuel (" petrifaction diesel ") of mineral.Chemical industry by plant or the fat of animal and have the alcohol of unit price, such as methanol or ethanol oil transesterification extract biodiesel.Biodiesel mixes with petrifaction diesel mutually with every kind of ratio.Many countries are therefore by the biodiesel blending composition acting on traditional diesel fuel.From 2009, Germany by be identified as in gas station " B7 ", biodiesel within 7% is incorporated in traditional petrifaction diesel.
Research shows, biodiesel is than diesel fuel (petrifaction diesel) ages faster based on mineral oil.This effect by described biodiesel, accelerate owing to running that cause, frequent heating and cooling.Biodiesel easily plays the effect of moisture absorption, is hydrolyzed by ester and may produce fatty acid freely when thus there may be water content in fuel, and described fatty acid freely may reduce pH value and play the effect of corrosion.
Biodiesel enters in engine oil, and this represents a kind of problem.In running at normal diesel oil, during unburned biodiesel arrives on casing wall and circulates thereby into lubricant.Pure petrifaction diesel starts evaporation when about 55 DEG C.If described engine oil reaches this temperature in travelling operation, then traditional diesel oil is just evaporated from described engine oil, and it is admixed to suck in air and burn by exhausted by crankcase pipeline.Because the rape seed methyl esters of described biodiesel only just starts evaporation from about 130 DEG C and described engine oil does not reaches this temperature, so biodiesel is enriched with in described engine oil.Due to the temperature of in described lubricant circuit, higher local, described biodiesel share is little by little decomposed in the case of carbon deposit and polymerization, this causes solid-state or the residue of mucus shape.The situation that when this point and the biodiesel concentration in engine oil are higher, described greasy property is deteriorated all may cause the rising of engine scuffing, and this makes to change oil again in biodiesel is run in shorter interval becomes required.Additionally, running of utilizing that biodiesel carries out may be a problem for modern exhausted gas post-processing system because present in the biodiesel, the vestige of inorganic matter may cause deposition and may infringement exhausted gas post-processing system.Had trial in the past, by the adsorbent in fuel feed system make described in fatty acid chemical combination freely, or only manufactured described spraying system by acidproof material, or at least coat described spraying system with such material.But, these measures cause higher cost.For reasons of being previously mentioned, limit with 7% at present and biodiesel is incorporated in petrifaction diesel.
Therefore, be worth pursuing, improve the blending that biodiesel is incorporated in petrifaction diesel, and be avoided as much as being previously mentioned simultaneously, especially with respect to the shortcoming of the corrosion caused by produced fatty acid freely.
Summary of the invention
The present invention advises a kind of for supplying, to the spraying system of the internal combustion engine of motor vehicles, the method that the process of fuel is controlled to from two separate fuel tank systems according to claim 1, wherein there is the first fuel in the first fuel tank system and there is the second fuel in the second fuel tank system.According to the present invention, according to described internal combustion engine, at least one operating parameters tried to achieve by the way of forecast, with the share that the share of described second fuel proportionally regulates described first fuel.With this ratio, described fuel is flowed to the spraying system of described internal combustion engine.
Described first fuel can be the diesel fuel (petrifaction diesel) of mineral purely.Described second fuel can be pure biodiesel.But it is also possible that described second fuel is the mixture of the composition of proportions to know by petrifaction diesel and biodiesel.It is further possible that, described first fuel is the mixture being made up of with known the first ratio (biodiesel within such as 7%) petrifaction diesel and biodiesel, and described second fuel is the mixture being made up of with known the second ratio (such as more than 7% until the biodiesel of 100%) petrifaction diesel and biodiesel, and wherein both ratios are different from each other.
According to the present invention, the share running (high pressure) spraying system that estimation regulates first and second fuel described, that flow to internal combustion engine according to weather report, each share in the share being wherein previously mentioned can be between 0% and 100%.
The running of a kind of forecast estimate or strategy in previously given time interval and/or by current driving route position in the case of relevant to driving route for previously given, need the mileage that crosses to internal combustion engine, from the current observation moment in time until the operation in future is predicted, and trying to achieve the corresponding operating parameters of described internal combustion engine by the way of forecast, the operation method of estimation of this forecast or strategy itself are known and be not subject of the present invention but premise.Therefore, the details of the operation reserve of such forecast is explained below.
" electronic horizon " (also referred to as " Electronic Horizon ", " eHorizon " or referred to as " EH ") nowadays refers in particular to the runway gradient and the embroidery of runway, limit including corresponding jural speed, but also refer to adeditive attribute, such as intersection, light signalling device, the number in track, tunnel etc..These parameters according to current vehicle location as along the circuit moved ahead, attribute that position is fixing tries to achieve.The offer of electronic horizon is carried out by so-called " horizon supplier (Horizon Provider) " (" HP "), and described " horizon supplier (Horizon Provider) " can be such as the ingredient of the navigation system of vehicle.The route choosing in the future of driver can be tried to achieve by means of its input guided for the destination of navigation system.In the case of not having such destination to guide, transmit the category of roads based on basis or " most possible path " (" Most Probable Path ", " MPP ") that try to achieve according to the statistical conditions about the circuit crossed the most equally.Alternatively, described HP tries to achieve alternative circuit, and driver is likely to select described alternative circuit.Below this concept of MPP is representatively used for most possible circuit and possible alternative circuit.
" floating-car-data (Floating-Car-Data) " (" FCD ") represents the data produced from the current vehicle participating in traffic events.These data not only include the state of driving but also include the state stopped, the such as state in traffic congestion, before traffic lights or on waiting area.The data record of described FCD comprises at least Time Stamp time stamp in other words (Zeitstempel) and current coordinate.By the use of FCD method, vehicle becomes the sensor of movement.First they be for taxi fleet at present, is used for producing FCD, because these taxi fleets have had the equipment of necessity together with the connection being connected to control centre for the task of fleet management.In addition to coml supplier, research institution is also adopted by FCD method.The information about traffic current in city can be produced by means of FCD.
The continual exploitation of dynamic road-map plays an important role.The application program being such as also used for mobile phone is among exploitation.Herein relate to, by means of existing mobile cameras and this method of supplier transferring data to application program, the traffic such as regulating speed is illustrated that mark carries out traffic signal landmark identification.Application program user obtains for this illustrating that road-map (dynamic road-map) current in terms of mark, described road-map can realize function on the basis of correct data, such as slide assistant (Ausrollassitenten) in the traffic of governing speed.Described application program user is such as advised to driver according to along circuit, regulation speed traffic signal mark and geopotentia distribution, current speed and vehicle mass: slow down (vom Gas gehen) in time, slide into next suitable speed for always, and thus avoid braking strategy and save fuel.
For dynamic map information such as:
-speed limit (has the traffic signal mark that speed limits)；
-speed limit cancels (cancellation that speed limits)；
-sail position (Ortseinfahrten) (actually speed being restricted to 50km/h) into；
-roll position (Ortsausfahrten) (actually cancelling speed to limit) away from；
-turning flexibility (and therefrom derive, relevant turning speed point).
Described road-map is electronically saved on a storage medium, is such as stored in server or cloud computing.The driver of motor vehicles is temporarily, at least connected with the dynamic map in described server or cloud computing by application program, such as navigation system with its terminal unit moved.
Can be depended on map datum by the navigation system data content that other assembly in car is provided in the sense that prospect/forecast, described map datum is provided by map supply business and described map datum can supplier not only but also be distinguish between in terms of scope according to the map in terms of quality.Information, the most especially height distribution/gradient distribution, turning and the VELOCITY DISTRIBUTION relevant to energy can't obtain in geographic coverage at present, and be essentially limited to high-grade road grade within Europe.
So-called " adaptability cruise controls " (" ACC ") is by realizing automatization for prespecified the making of driving moment and retarding moment for the longitudinally controlled of vehicle.If there is no relevant traffic conditions, that just sets (einregeln) standard speed (Setzgeschwindigkeit).When relevant traffic conditions, replace if desired following the vehicle moved ahead in this place, can by means of radar or video sensor measure described in the position of vehicle that moves ahead.When turning driving, reduce corresponding standard speed.
So-called " EcoLogic ACC " is to add, to ACC, the expansion scheme making vehicle slide this function with saving energy before speed limit or turning in running under power.Speed limit can be tried to achieve with turning speed from the polymerization of the measurement of the vehicle different from multi-section, and is provided by described cloud computing.
The function of " integrated cruise auxiliary (Integrated Cruise Assist) " (" ICA ") in some travel situations by for the prespecified of retarding moment and driving moment and making the longitudinal direction for vehicle and crosswise joint be able to automatization for the prespecified of steering moment extraly.If overtaken other vehicles, strategy is meaningful, the most there is not relevant traffic conditions below, then ICA just implements automatic lane change after having handled blinker.For this function, measure traffic conditions above, photographic head detection carriageway markings, traffic signal mark and unappropriated region by radar sensor.Point to the traffic conditions below of radar sensor detection below.On the basis of speed limit and radius of turn, from numerical map, determine normal speed.
Feasible program that the present invention utilizes known predictive operation reserve, that be briefly described above, method is: regulate the corresponding share of first and second fuel being fed to described spraying system according to internal combustion engine, at least one operating parameters tried to achieve by the way of forecast.It is not excluded at this: carry the other share of fuel extraly.The most less get rid of: described other fuel is described first fuel or described second fuel.The share being previously mentioned iff conveying first and second fuel described, then the summation as these shares then obtains 100%.
Described by the way of forecast the operating parameters tried to achieve be preferably included in previously given time interval and/or described internal combustion engine, the power load distributing predicted and/or the demand for fuel predicted in previously given distance travelled.Predictive operation reserve thus in terms of the current moment in time and/or in the case of relevant to distance travelled, predict the ruuning situation of described internal combustion engine or submit necessary information, for the power load distributing of Predicting Internal Combustion Engine and thus predict its demand for fuel.
In a kind of particularly advantageous design, in the case of the internal combustion engine of the cut-out predicted in the second moment, reduce the share of described second fuel, thus at the latest this second time the share of the second fuel that is engraved in described spraying system be substantially zero.
By means of a kind of embodiment, this design is explained, in described first fuel tank system, basically comprise pure petrifaction diesel in such an embodiment or there is the petrifaction diesel of share of (maximum) 7% biodiesel (" B7 "), and basically comprise in described second fuel tank system pure biodiesel or only comprise by petrifaction diesel and have more than 7%, especially more than 10%, 20%, 30%, 40%, 50% or the mixture that constituted of the biodiesel of biodiesel of more share.If described predictive operation reserve detects has cut off described internal combustion engine (load and/or demand for fuel are predicted to be zero) in the second moment being previously mentioned, then can fully fill it up with petrifaction diesel or B7 by supplying it in time to be transformed into the purest petrifaction diesel or this mode of B7 to described (high pressure) spraying system, thus in the case of turning off internal combustion engine, avoid the corrosion caused due to the acid of aging bio-fuel.
Here, the minimizing of the share of described second fuel can be carried out linearly, stepwise and/or exponentially.Stair-stepping minimizing may mean that and is uniquely once reduced to zero percentage point, but may also mean that and reduce in the range of several ladder exceeding.In the case of previously given minimizing curve, advantageously, detection is in the first moment before described second moment, must realize described minimizing at the latest, in order to the share of the second fuel in described spraying system is substantially zero when described second moment from described first moment.
In the case of known minimizing curve, this first moment can be advantageously according to until cutting off the fuel consumption predicted before described internal combustion engine and trying to achieve according to fuel quantity stored in described spraying system.
Advantageously for using self petrolift for each fuel tank system in said two fuel tank system respectively, it is used for delivering fuel in described spraying system.As petrolift, it is used advantageously in the electronic gear pump told about in description introduction.Such electronic pre-delivery pump can ensure that the cooling in fuel feed system, lubricates, ventilates and pressure initiation.Generally described petrolift is arranged in described fuel tank system.Before described high-pressure pump, two pump output terminals were linked together the most at the latest before fuel filter.It is of course also possible to there is multiple stage petrolift in corresponding feeding pipe.
According to the present invention, described first and second fuel, the especially share of biodiesel and standard diesel oil can mix targetedly.To this end, manipulate, by demand, the petrolift that described (at least) two electricity consumptions run.Described mixed proportion can by means of corresponding petrolift, the rotating speed that can regulate regulates.
In the drive scheme of hybrid power, the driving caused by internal combustion engine is combined with the driving caused by least one motor.Thus the advantage that both drives can be combined.If trying to achieve the cut-out for described internal combustion engine by the way of forecast for such hybrid drive, namely predict distance travelled the biggest in internal combustion engine-cut-out-operation, the most here can also reduce the share (referring to explanation above) of described second fuel, the most especially bio-fuel in time, for the most especially preventing: during bio-fuel is also not left in hotter high pressure-fuel system described in these stages and the most described bio-fuel is the most aging and and may play more violent corrosiveness.
Can imagine further, record with distinguishing in electromotor controller and utilize the duration of operation of the two fuel, especially biodiesel and petrifaction diesel and/or corresponding fuel temperature, and determine the abrasion of assembly by means of Ageing Model with distinguishing.In this way, such as can be inferred that when changing cleaner (blocking that causes due to polymer and the problem produced) and lubricating oil (solid-state caused in lubricating oil due to biodiesel or the residual substance of mucus shape) necessarily.
Described in the present inventive method particularly with further mitigating etching problem for longer internal combustion engine-break time and thus improve situation about running by biodiesel by share.
In addition, a kind of control unit being used in the motor vehicles with two separate fuel tank systems is subject of the present invention, wherein the first fuel tank system comprises the first fuel and the second fuel tank system comprises second fuel different from described first fuel, wherein said control unit controls to form distributing the fuel to the situation of the spraying system of the internal combustion engine of described motor vehicles and being so designed that for this from the separate fuel tank system of said two, thus according to described internal combustion engine, the share of at least one operating parameters tried to achieve by the way of forecast and described second fuel regulates the share of described first fuel pari passu.Form additionally, described control unit is preferably so designed that, thus described in realizing in the present inventive method, design explained above.
In addition, a kind of corresponding computer program is subject of the present invention, described computer program promotes to calculate or control unit, especially described implement when performing in described control unit at it as the control unit of the present invention described in the present inventive method, and a kind of machine-readable storage medium, such as usb memory stick, CD, DVD, harddisk memory or flash memories are subject of the present invention, described storage medium has that preserved in the above, by the computer program of the present invention.
Self-evident, feature noted earlier and to be explained can not only in corresponding illustrated combination and also also be able in other combines or be used alone, and without departing from the scope of the present invention.
Accompanying drawing explanation
The present invention is schematically depicted in the drawings by means of a kind of embodiment and is described with reference to the accompanying drawings.
Fig. 1 is for motor vehicles, the schematic diagram of the fuel feed system with two fuel tank systems.
Detailed description of the invention
Fig. 1 shows the fuel feed system of a kind of motor vehicles for having two fuel tank systems with the view summarized very much.Said two fuel tank system is provided with reference 1 and 2.Described motor vehicles is typically the commercial vehicle or truck run with diesel oil, wherein distributes the fuel to the high-pressure injection system 3 of described internal combustion engine (not shown).In described fuel tank system 1, there is the first fuel, in described fuel tank system 2, there is the second fuel.It has been respectively allocated the electronic gear pump as petrolift 5 or 6 for each fuel tank system 1,2.These petrolifts are here arranged in from corresponding fuel tank in the fuel conduit drawn.Described fuel pump deliver line was focused at together before described fuel filter 9.The most described pipeline leads in described high-pressure injection system 3.
Among pump controller (Pump Control Unit, be called for short PCU) 8 is in described electronic petrolift 5 and 6 and acts on and being connected.As an alternative, every pump can have himself, integrated controller.Described mixing ratio, namely the ratio of the amount of first and second fuel and corresponding amount itself can by means of described two petrolifts 5 and 6, the rotating speed that can regulate regulates.Described PCU is among connection with described electromotor controller (Engine Control Unit is called for short ECU) 7.Described two controllers ECU, PCU are connected with automobile-used circuit 4.According to the type of described vehicle, described ECU 7 can also represent wagon control computer.ECU 7 and PCU 8 is connected typically via CAN.
In the ongoing illustrated embodiment, described first fuel tank system 1 also exists standard diesel oil, described standard diesel oil or pure petrifaction diesel should be referred to, or only should refer to the mixture of biodiesel of petrifaction diesel and maximum 7%.In described second fuel tank system 2, essentially comprising pure biodiesel or only also contains the mixture being made up of petrifaction diesel and higher share, namely biodiesel more than 7%.By described second fuel is incorporated into this mode in described first fuel, thus the share of biodiesel is increased to exceed 7%.According to described internal combustion engine, by the way of forecast, the operating parameters tried to achieve regulates the corresponding share of first and second fuel.This operating parameters is tried to achieve in described ECU 7.The share of first and second fuel described is determined according to this operating parameters.Corresponding data are sent to described PCU 8, described PCU 8 and the most correspondingly regulates the corresponding rotating speed of described petrolift 5 and 6.
If such as predicting the distance of the VELOCITY DISTRIBUTION longer, there is substantial constant by the way of forecast, the most such as improve the share of described second fuel.
If trying to achieve a kind of load tdistribution curve by the way of forecast, this load tdistribution curve can be inferred that the cut-out of internal combustion engine in the specific moment, then can be according to the known fuel receiving amount at described high-pressure injection system 3 and according to until the demand for fuel predicted before this moment (" the second moment ") continuously reduces the second fuel in described fuel tank system 2 in time, thus ensure only to fill it up with the first fuel at high-pressure injection system 3 described in described second moment, the cut-out of described internal combustion engine is wherein predicted in described second moment.In this approach, the minimizing of described second fuel such as can be carried out with constant slope linearly, improves the share of described first fuel the most on the contrary.Speed (slope) according to this minimizing in the hope of the first moment, can start the minimizing of described first fuel from described first moment.Described minimizing speed is the highest, and described first moment is it is possible to the closer to described second moment.Can also directly terminate the supply of described second fuel, and replace the share of described second fuel by the share of described first fuel is correspondingly brought up to 100% this mode.
Identical consideration is also applied for the situation of combination drive, if it is to say, predicting a kind of longer distance travelled or running time in described internal combustion engine cuts off and runs.For reasons of being previously mentioned, then advantageously, load described high-pressure injection system 3 with the fuel of standard diesel oil or the biodiesel with the least share completely when cutting off described internal combustion engine.
Claims (12)
1. for for carrying, from two separate fuel tank systems (1,2) to the fuel of the spraying system (3) of the internal combustion engine of motor vehicles, the method being controlled, wherein the first fuel tank system (1) comprises the first fuel and the second fuel tank system (2) comprises second fuel different from described first fuel
The share of described first fuel is wherein regulated pari passu according at least one operating parameters tried to achieve by the way of forecast of described internal combustion engine and the share of described second fuel.
2. the method as described in claim 1, at least one operating parameters of trying to achieve by the way of forecast wherein said is included in previously given time interval and/or described internal combustion engine, the power load distributing predicted and/or the demand for fuel predicted in previously given distance travelled.
3. the method as described in claim 1 or 2, wherein substantially use pure petrifaction diesel as described first fuel or there is the petrifaction diesel of share of biodiesel within 7%, and use, as described second fuel, the mixture being made up of the biodiesel of petrifaction diesel with the share with the biodiesel more than 7% or substantially use pure biodiesel.
4. the method as according to any one of Claim 1-3, in the case of the cut-out internal combustion engine wherein predicted when the second moment, reduce the share of described second fuel, thus at the latest this second time be engraved in the share of the second fuel in described spraying system (3) and be substantially zero.
5. the method as described in claim 4, the minimizing of wherein said second fuel is carried out linearly, stepwise and/or exponentially.
6. the method as described in claim 4 or 5, wherein in the case of curve previously given, described second fuel minimizing, tries to achieve a kind of the first moment being in before described second moment, realizes described minimizing at the latest from this moment.
7. the method as described in claim 6, wherein according to until cutting off the fuel consumption predicted before described internal combustion engine and trying to achieve described first moment according to fuel quantity stored in described spraying system (3).
8., by method in any one of the preceding claims wherein, for each fuel tank system in said two fuel tank system (1,2), wherein use the petrolift (5,6) of self respectively, be used for delivering fuel in described spraying system (3).
9. as any one of aforementioned claim and return draw the method described in claim 4, wherein for the vehicle with hybrid drive, described second moment represents predicted switch instant, cuts off the internal combustion engine of described hybrid drive when described switch instant.
10. for for carrying, from two separate fuel tank systems (1,2) to the fuel of internal combustion engine of motor vehicle spraying system (3), the control unit (7,8) being controlled, the most so set up described control unit (7,8) so that it controls the conveying of described fuel according to the method as according to any one of claim 1 to 9.
11. computer programs, this computer program promotes control unit, especially control unit (7,8) as described in claim 10 to implement the method as according to any one of claim 1 to 9 when it performs in described control unit.
12. machine-readable storage mediums, have computer program that preserved in the above, as described in claim 11.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102015204042.9 | 2015-03-06 | ||
| DE102015204042.9A DE102015204042A1 (en) | 2015-03-06 | 2015-03-06 | Method for controlling the fuel supply from two separate tank systems |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105937451A true CN105937451A (en) | 2016-09-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610122807.1A Pending CN105937451A (en) | 2015-03-06 | 2016-03-04 | Method of controlling transmission of fuel from two separated fuel tank systems |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN105937451A (en) |
| DE (1) | DE102015204042A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112169615A (en) * | 2020-09-28 | 2021-01-05 | 同济大学 | On-board double-fuel switchable biodiesel blending device |
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- 2015-03-06 DE DE102015204042.9A patent/DE102015204042A1/en not_active Withdrawn
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| JP2007192063A (en) * | 2006-01-17 | 2007-08-02 | Tetsuo Sugioka | Bio-diesel fuel engine system and method for operating bio-diesel fuel engine |
| US20090070008A1 (en) * | 2006-03-10 | 2009-03-12 | Greg Batenburg | Method And Apparatus For Operating A Dual Fuel Internal Combustion Engine |
| DE102006018736A1 (en) * | 2006-03-28 | 2007-10-11 | Hallertauer Bioenergie Technologie Gmbh | Method for operating combustion engine using multi-fuels, requires injection of specified portions of different first and second fuels |
| DE102007048517A1 (en) * | 2007-10-10 | 2009-04-16 | Ingo Wendt | Control device for fuel supply system for supplying internal combustion engine over different fuel lines, has controlled valve arrangement for two fuels alternatively for change-over between fuels |
| CN102046947A (en) * | 2008-05-26 | 2011-05-04 | 罗伯特.博世有限公司 | Method and device for controlling an internal combustion engine |
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| CN103987944A (en) * | 2011-12-16 | 2014-08-13 | 罗伯特·博世有限公司 | FUEL SYSTEM FOR INTERNAL COMBUSTION ENGINE capable of being operated with AT LEAST TWO FUEL TYPES |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112169615A (en) * | 2020-09-28 | 2021-01-05 | 同济大学 | On-board double-fuel switchable biodiesel blending device |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102015204042A1 (en) | 2016-09-08 |
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