CN1995732A - Method for distributing the fuel oil of speed regulator to independent three oil mass in a stable manner - Google Patents
Method for distributing the fuel oil of speed regulator to independent three oil mass in a stable manner Download PDFInfo
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- CN1995732A CN1995732A CN 200510138171 CN200510138171A CN1995732A CN 1995732 A CN1995732 A CN 1995732A CN 200510138171 CN200510138171 CN 200510138171 CN 200510138171 A CN200510138171 A CN 200510138171A CN 1995732 A CN1995732 A CN 1995732A
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Abstract
The invention relates to a fuel injection control system and the method for transporting multiple fuel injections to engine cylinder according to the engine condition in a fuel injection event. The control system comprises electric controller connected to the oil injection device controlled by electron, multiple sensors connected to controller so as to input some signals representing some engine conditions. The controller transports fuel injection signal to fuel injection device according to the sensor signal in a fuel injection event so as to transport burning, main and subsequent injecting fuel to the cylinder. The controller can allocate the expected fuel quantity among three fuel injections. In the total fuel set by allocating governor system among three fuel injections the controller determines expected fuel for burning and subsequent injection and determines the minimum fuel for burning and subsequent injection. By comparing the total fuel with the sum of expected fuel and the minimum fuel, the actual fuel in all injections is determined and the priority level of main fuel injection is determined according to the fuel injection model.
Description
Technical field
The present invention relates generally to electronically controlled fuel injection system, more particularly, the present invention relates to a kind of method and apparatus of oil mass of the multiple fuel injection that is used for carrying and be controlled to the explosive motor cylinder in the fuel injection incident, according to the operating mode of explosive motor.
Background technique
Electronically controlled fuel injector is known for people in the present technique field, and they comprise electronically controlled fuel injector of hydraulic braking and the electronically controlled fuel injector of mechanical braking.Electronically controlled fuel injector injects fuel into the specific cylinder according to the injection signal that receives from electronic controller usually.These signals comprise oscillogram, and these oscillograms indicate to be ejected into the desirable injection rate of fuel oil and desirable timing and the amount in the cylinder.
To the emission regulation of engine exhaust effulent in the whole world equal increasingly stringent, for example, the discharging of limiting carbon hydrogen compound, carbon monoxide, shot discharge and the release of nitrogen oxide.Reduction be ejected into the firing chamber injecting times, lower the injection rate of fuel oil and reduce the desirable amount of such fuel injection and regularly be control discharging and a kind of mode that satisfies such emission standard.As a result, people have just adopted split fuel injection technology (split fuel injection technique) to change the combustion characteristic in the combustion process, to attempt to reduce the grade of discharging and noise.Split sprays to generally include the whole fuel delivery to cylinder in specific injection events is divided into twice independently fuel injection, and for example oil (pilot injectionshot) is penetrated in a pilot injection and a main injection is penetrated oil.Under different engine operating conditions, may need to use different injection strategies to realize the control of desirable engine operation and effulent.For example, a kind of split spraying technique can be used for comprising the engine operating condition of low engine speed and low engine load, and other technology then can be used for different engine operating conditions.In the past, the split controllability of spraying is subjected to the restriction of machinery and the others restrictive condition relevant with the specific type of used fuel injector to a certain extent.Even if use more advanced control fuel injection device, under some engine operating condition, still be difficult to control exactly fuel delivery sometimes, even when using current controling signal, also be like this.
As employed always in this text, injection events is defined as the injection that occurs in the cylinder in the once circulation of motor.For example, a four stroke engine comprises aspirating stroke, compression stroke, expansion stroke and exhaust stroke for a specific once circulation that cylinder carried out.Therefore, the injection events in the four stroke engine is included in the number of times that occurs in the injection in the cylinder during four strokes of piston or penetrate oil.The term used as the present technique field " penetrated oil " and also can be referred to actual fuel injection or send to fuel injector or command current signal that other fuel oil actuator, indication carry out fuel injection or conveying to motor.
Using the split fuel injector is not the desirable engine performance of total energy realization under all engine speeds and engine load condition.According to operating mode, hope can be optimized injection timing, jet pressure and oil mass, to realize desirable effulent and desirable fuel consumption.Owing to various reasons, be not that total energy realizes these hope in the split ejecting system, these reasons comprise: the restriction aspect dissimilar attainable injection type of waveform; When in specific injection events, take place spraying, the oil mass of being sprayed in the fuel injection independently; Timing sequence between the injection; And, the tightness degree that injection at interval influences each other.As a result, export and fuel economy such as spraying too fast at given injection events intermediate fuel oil and/or desirable terminating point after, still allowing problem the fuel injection may influence discharging unfriendly.
In the system that can realize multi-injection and different injection waveforms, wish to control and to be delivered to the independent fuel injection of the arbitrary number of times of specific cylinder, with the engine operating condition of basis at this particular point in time, the for example variation of speed, load or environmental conditions makes effulent and fuel consumption minimum.This may be included in the specific injection events fuel injection is divided into more than twice independently penetrate oil, provide bigger oil mass igniting to penetrate in the oil (pilot shot), in injection events, ignite in advance and penetrate oil, and regulate various multi-injections and penetrate timing between the oil, to realize desirable effulent and desirable oil inflame efficient.In some cases, also wish the fuel delivery front end of ratio setting (rate shape), to control the combustion characteristic of employed specific fuel oil to cylinder.In addition, in some cases, penetrating oil endurance or oil mass may be very short or very little, so that is not practicable for oil is penetrated in this time of injection.
Therefore, the present invention is devoted to overcome aforesaid one or more problem.
Summary of the invention
In one aspect of the invention, disclosed a kind of electronically controlled fuel injection system, this system can incite somebody to action repeatedly independently fuel injection and be transported in the specific cylinder of explosive motor in single injection events.This system comprises: can work carrying multi-injection to penetrate at least one fuel injection apparatus of oil, and can work to determine penetrating oily number of times and at the controller of penetrating actual oil mass used in the oil at every turn.
In a preferred embodiment, controller can be worked to determine that oil mass is penetrated in desirable and minimum igniting, minimum master penetrates oil mass and minimum and desirable follow-up oil (anchor shot) amount of penetrating.The determined total oil mass of speed regulator system and the various summations of these desirable and minimum oil masses are compared, to determine that spraying usefulness, actual igniting by at least one fuel injection apparatus penetrates oil mass, main oil mass and the follow-up oil mass of penetrating of penetrating.Repeatedly penetrate oil by fuel oil is shared, in one embodiment, controller is penetrated oily pattern all priority of time penetrating between the oil is set according to determined.Therefore, in one embodiment,, then ignite and penetrate oil and follow-up to penetrate that oil just is arranged to be zero substantially if fuel oil only is enough in and main penetrates oil; And, if only being enough in the main oil of penetrating, fuel oil penetrates oil with igniting, the then follow-up oil of penetrating is set to zero.But, according to the present invention, if do not have enough total fuel oils to can be used for igniting to penetrate oil and mainly penetrate oil, but have enough fuel oils to can be used for main oil and the follow-up oil of penetrating penetrated, then will ignite and penetrate that oil is arranged to is zero substantially, and penetrates oil and follow-uply penetrate the total fuel oil of distribution between the oil main.
In another aspect of this invention, computer-readable medium comprises and is used to control fuel injection control systems and penetrates oil mass, mainly penetrate oil mass and follow-up instruction of penetrating oil mass fuel oil of speed regulator output is distributed into actual igniting.Whether whether these instructions judge that whether having enough fuel oil output to can be used for minimum master penetrates oil mass, have enough fuel oil of speed regulator output to can be used for desirable igniting and penetrate oil mass, and have enough fuel oil of speed regulator output to can be used for the desirable follow-up oil mass of penetrating.According to various judged results, these instructions determine that oil mass is penetrated in actual igniting, the master penetrates oil mass and the follow-up oil mass of penetrating.
In a preferred embodiment, also definite minimum igniting penetrated oil mass and the minimum follow-up oil mass of penetrating.Penetrate in the preferential example of oil igniting, can be used for follow-up penetrating before the oil, judge whether that earlier enough fuel oils can be used for pilot injection and realize igniting and penetrate this priority of oil by judging whether enough fuel oils.
In another aspect of this invention, a kind of method of fuel injection control systems to distribute fuel oil of speed regulator to export that be used to control described.This method comprises determines that desirable igniting penetrate oil mass and follow-uply penetrate oil mass and minimum master penetrates oil mass.Then, this method judges whether that enough fuel oils can be used for that minimum master penetrates oil mass, desirable igniting penetrated oil mass and the desirable follow-up oil mass of penetrating.According to these judged results, the present invention determines that then oil mass is penetrated in actual igniting, the master penetrates oil mass and the follow-up oil mass of penetrating.
In preferred embodiment, before the master of reality penetrates oil mass, spray actual igniting and penetrate oil mass, and after the master of reality penetrates the oil mass injection, spray the actual follow-up oil mass of penetrating.In order to determine actual oil mass to be sprayed, the fuel oil of speed regulator that carry exported or oil mass is penetrated in total oil mass and desirable and minimum igniting, minimum master penetrates oil mass and minimum and desirable follow-up various summations of penetrating oil mass are compared.
Description of drawings
In order to understand the present invention better, can be referring to accompanying drawing.In these accompanying drawings:
Fig. 1 is the schematic representation of the control fuel injection device oil-fired system that is used in combination with one embodiment of the invention;
Fig. 2 is a schematic time plot of penetrating the fuel injection incident of oil for three times;
Fig. 3 exemplaryly penetrates oily mode map table according to what engine speed and engine load were drawn out;
Fig. 4 is a schematic time plot of penetrating the fuel injection incident of oil for twice;
Fig. 5 is another schematic time plot of penetrating the fuel injection incident of oil for three times;
Fig. 6 is a schematic time plot again of penetrating the fuel injection incident of oil for three times;
Fig. 7 is a schematic time plot of penetrating the fuel injection incident of oil for four times;
Fig. 8 illustrates to determine that minimum igniting penetrate oil mass, mainly penetrate oil mass, follow-uply penetrate oil mass and desirable igniting penetrated the schematic block diagram of oil mass;
Fig. 9 illustrates to determine the desirable follow-up schematic block diagram of penetrating oil mass;
Figure 10 illustrates to determine that oil mass is penetrated in actual igniting, the master penetrates oil mass and the follow-up schematic block diagram of penetrating oil mass;
Figure 11 is illustrated at least for minimum igniting to penetrate oil mass, mainly penetrate oil mass and the follow-up oil mass of penetrating has under the situation of enough fuel oil of speed regulator output, determines that actual igniting penetrate oil mass, main oil mass and the follow-up schematic block diagram of penetrating oil mass penetrated;
Figure 12 is the chart that illustrates according to the example of engine speed and engine load injection strategy that adopted under some engine operating condition, that realize the stable state discharging; And
Figure 13 is an embodiment's the illustrative diagram that is used for adjusting according to environmental conditions the control system of fuel injection event argument.
Embodiment
See also Fig. 1, an embodiment of the electronically controlled fuel injection system 12 of hydraulic actuating shown in this figure, shown in system 12 for being suitable for an exemplary configuration of direct spray type compression ignition engine 14.Oil-fired system 12 comprises one or more electronically controlled fuel injection apparatuss, and as fuel injector 16, these fuel injection apparatuss are suitable for being positioned at the respective cylinder Gai Kongzhong of motor 14.Although embodiment shown in Figure 1 is applied to the six-in-line motor, people can approve and predict and be appreciated that the present invention can be applicable to too such as V-type engine or rotary engine, and motor can comprise any a plurality of cylinder or firing chamber.In addition, although embodiment shown in Figure 1 also shows an electronically controlled fuel injection system of hydraulic actuating, but people can approve and predict equally, the present invention also can be applied to the fuel injection apparatus of other type equally, comprises electronically controlled fuel injector, mechanically actuated electronically controlled fuel injector unit and has the Common rail fuel injection system numerical control fuel valve, fluid-actuated.
Oil-fired system 10 shown in Figure 1 comprises: be used for that actuating fluid is fed to the equipment of each fuel injector 16 or install 18, be used for supplying fuel to the equipment of each fuel injector or install 20, be used to control the electric control device 22 of fuel injection system, the content of described electric control device 22 controls comprises the mode and the frequency of fuel injector 16 injected fuel, comprises the injecting times of timing, each injection events, the oil mass of each injection, time lag and the discharge time plotted curve between each time injection.Therefore, each fuel injector 16 can be worked to carry multiple fuel injection in each injection events.This system can also comprise and be used for recirculated fluid and/or reclaim the equipment of hydraulic energy or install 24 from the actuating fluid that leaves each fuel injector 16.
Actuating fluid feeding mechanism 18 preferably comprise actuating fluid storage tank or container 26, relatively low pressure actuating fluid transfer pump 28, actuating fluid cooler 30, one or more actuating fluid filter 32, be used for producing the high-pressure service pump 34 of relatively high pressure and the house steward or the track 38 of at least one relatively high pressure actuating fluid at actuating fluid.Altogether rail passage 38 is arranged to be communicated with the outlet fluid of the actuating fluid pump 34 of relatively high pressure.Track branched bottom 42 is connected to high-pressure common rail passage 40 with the actuating fluid inlet of each fuel injector 16.In mechanically actuated electronically controlled fuel injector, the mechanical device that is used to activate such fuel injector with certain type cam-actuated structure or other substitutes house steward 38, rail passage 40 and branched bottom 42 altogether usually.U. S. Patent the 5th, 947 No. 380 and the 5th, 407, has disclosed the example of some mechanically actuated electronically controlled fuel injectors in No. 131.In preferred embodiment, injection apparatus is a fuel injector, but it also can be the numerical control fuel valve that is associated with common rail fuel combustion system.
In preferred embodiment, actuating fluid is an engine lubricating oil, and actuating fluid storage tank 26 is storage tanks of engine lubricating oil.This makes fuel injection system can be connected in the oil circulation system of motor as attached subtense angle.Perhaps, actuating fluid can be a fuel oil.
Fuel oil supplying device 20 preferably comprises fuel tank 44, is arranged to the supplying fuel passage 46 that is communicated with at fluid between the fuel filler of fuel tank 44 and each fuel injector 16, fuel oil transfer pump 48, one or more fuel oil filter 50, the supplying fuel modulating valve 51 of relatively low pressure and fuel oil circulation and the return passage 49 that is arranged to fluid connection between each fuel injector 16 and fuel tank 44.
For example, engine temperature sensing unit shown in Fig. 1 60 is connected in motor 12.In one embodiment, engine temperature sensing unit comprises the engine oil temperature sensor.But, also can use the engine coolant sensor to come the detection of engine temperature.Engine temperature sensing unit 60 is created in and uses S among Fig. 1
1The signal that is indicated, and by circuit S
1Be input to ECM 58.In this certain embodiments shown in Figure 1, ECM58 sends control signal S
9,, also send fuel jet signal S to control out the actuating fluid pressure of self-pumping 34
10, so that solenoid in each fuel injector or other electric actuation device energising, control the fuel regulator valve in each fuel injector 16 by this and inject fuel in each corresponding cylinder.Can be independent of engine speed and load and control each nozzle parameter changeably.When using fuel injector 16, control signal S
10Be fuel jet signal, this signal is the electric current that sends to the ECM instruction of fuel injector solenoid or other actuator.
What people can admit is, the fuel injection type in any specific fuel injection incident generally can change according to the various operating modes of motor.In the effort that makes minimal emissions, it is found that, under the engine operating condition that changes, will be repeatedly in the fuel injection incident independently fuel injection be transported to specific cylinder and can realize desirable engine operation and effulent control.Fig. 2 shows and comprises independently fuel-injected multi-injection incident three times, described three independently i.e. first fuel injections of fuel injection or ignite and penetrate oil 62, second fuel injection or main oil the 64 and the 3rd fuel injection or the follow-up oil 66 of penetrating penetrated.As shown in Figure 2, ignite and penetrate oil 62 and be ejected in the firing chamber before penetrating oil 64, and shift to an earlier date a certain preset time factor, crankangle or master delay 63 main; The follow-up oil of penetrating then is arranged in main penetrating after oily 64 according to a preset time factor, crankangle or follow-up delay 65.According to the programming relevant with electronic controller 58 and be stored in various mapping table in the storage of controller and/or lookup table (comprise relevant engine speed, engine load, relevant pressure (rail pressure), desirable total oil mass and mapping table and/or the form of penetrating other parameter of oil with orbital pass 40), controller 58 can dynamically be determined to penetrate the suitable number of times of oil, penetrate the distribution that oily needed oil mass and fuel oil are being penetrated between the oil for all time at every turn.In addition, controller 59 can determine that each time penetrate oil and the timing and endurance of follow-up delay 65.Penetrate in the multi-injection of oil as shown in Figure 2 three times, a part that is transported to total fuel oil of firing chamber will be penetrated oil 62 as igniting and be sprayed, the part of total fuel oil like this will be sprayed as a main part of penetrating oil 64, and the remaining part of total fuel oil that will spray then will spray as the follow-up oil 66 of penetrating.Under some operating mode, three times are penetrated oily multiple fuel injection is favourable aspect exhaust emission, comprises that the shot effulent reduces and/or NO
xEffulent reduces, and can realize desirable engine performance.
The output of speed regulator system can be called speed regulator and require that spray, total desired oil mass, perhaps is called total usable quantity of fuel.That is to say that carry out fuel distribution between the oil in order to penetrate at all time, speed regulator system is set total usable quantity of fuel of (establish) desired distribution in injection.In case determined total usable quantity of fuel, the present invention just can be used for determining how to distribute oil mass between the oil penetrating of desired number of times.According to engine speed and load, controller 58 is selected a plurality of of penetrating in the oily pattern.Disclosed herein exemplaryly penetrate oily pattern and comprise: the single injection event time (penetrating oily pattern 1), below in conjunction with the twice individual injection time (penetrating oily pattern 2) that Fig. 4 discussed, three individual injection incidents (penetrate oily pattern 4 and penetrate oily pattern 6) of being discussed in conjunction with above-mentioned Fig. 2 and following Figure 10-11 are perhaps in conjunction with four individual injection incidents (penetrating oily pattern 8) that following Fig. 7 discussed.Controller 58 can utilize lookup table or mapping table to select to penetrate oily pattern according to engine speed and load.Fig. 3 represents to be used for to select to penetrate an exemplary map table of oily pattern according to engine speed and load.For example, for given fuel oil (engine load) value 60mm-
3/ stroke and given engine speed 800rpm (revolutions per minute), this mapping table penetrates selection at oily pattern 1.And for example, for given fuel oil (engine load) value 160mm
3/ stroke and given engine speed 1300rpm (revolutions per minute), this mapping table penetrates selection at oily pattern 8 (will be described below).Should be understood that, mapping table or the lookup table that also can use other with the present invention, to determine to penetrate oily pattern.Under some operating mode, using a plurality of one of oily patterns of penetrating is favourable aspect exhaust emission, comprises that the shot effulent reduces and/or NO
xEffulent reduces, and can realize desirable engine performance.
Fig. 4 illustrates an exemplary multiple fuel injection incident 200 (penetrating oily pattern 2 or SM 2), this multiple fuel injection incident 200 comprises independently fuel injection incident twice, comprises the first fuel injection incident or ignites and penetrate oil 202 and second fuel injection incident or the main oil 204 of penetrating.As shown in Figure 4, ignite and penetrate oil 202 and can be ejected in the firing chamber before penetrating oil 204, and shift to an earlier date a certain preset time factor, crankangle or ignite and postpone 206 main.
Fig. 5 illustrates another exemplary multiple fuel injection incident 300 (penetrating oily pattern 4 or SM 4), this multiple fuel injection incident 300 comprises independently fuel injection incident three times, comprises first fuel injection or ignite penetrating oil 302, second fuel injection or allo (close-coupled) and igniting and penetrate oil the 304 and the 3rd fuel injection incident or the main oil 306 of penetrating.As shown in Figure 5, ignite and penetrate oil 302 and can penetrate oil and be ejected in the firing chamber before 304, and shift to an earlier date a certain preset time factor, crankangle or ignite and postpone 308 allo igniting.Similarly, allo igniting penetrated oil 304 and can be ejected in the firing chamber before penetrating oil 306 main, and shifts to an earlier date a certain preset time factor, crankangle or master delay 310.
Fig. 6 illustrates an exemplary multiple fuel injection incident 400 (penetrating oily pattern 6 or SM 6) again, this multiple fuel injection incident 400 comprises independently fuel injection incident three times, comprises first fuel injection or ignites and penetrate oil 402, second fuel injection or main oil the 404 and the 3rd fuel injection or the allo follow-up oil 406 of penetrating penetrated.As shown in Figure 6, ignite and penetrate oil 402 and can be ejected in the firing chamber before penetrating oil 404, and shift to an earlier date a certain preset time factor, crankangle or ignite and postpone 408 main.The allo follow-up oil 404 of penetrating can be arranged in main penetrating after oily 404 according to a preset time factor, crankangle or follow-up delay 410.
Fig. 7 illustrates another exemplary multiple fuel injection incident 500 (penetrating oily pattern 8 or SM 8), this multiple fuel injection incident 500 comprises independently fuel injection incident four times, comprises first fuel injection or ignite penetrating oil 502, second fuel injection or allo igniting penetrated oil the 504, the 3rd fuel injection incident or main penetrated that oil the 506 and the 4th sprays or the allo follow-up oil 508 of penetrating.As shown in Figure 7, ignite and penetrate oil 502 and can penetrate oil and be ejected in the firing chamber before 504, and shift to an earlier date a certain preset time factor, crankangle or ignite and postpone 510 allo igniting.Similarly, allo igniting penetrated oil 504 and can be ejected in the firing chamber before penetrating oil 506 main, and shifts to an earlier date a certain preset time factor, crankangle or master delay 512.The allo follow-up oil 508 of penetrating can be arranged in main penetrating after oily 506 according to a preset time factor, crankangle or follow-up delay 514.Should be understood that, that the present invention can also utilize oily pattern of penetrating of other or multi-injection incident to realize except above-mentioned exemplary penetrating the oily pattern.
Fig. 3 to 6 illustrate one with desirable total oil mass be divided into desirable ignite penetrate oil 62, desirable master penetrates oil 64 and desirable follow-up oil 66 the embodiment that penetrates.Should be understood that, penetrate oily pattern for another, for example penetrate oily pattern 8, desirable total oil mass can be divided into desirable ignite penetrate oil 502, desirable allo ignite penetrate oil 504, desirable master penetrate oil 506 and desirable allo follow-up penetrate oil 508 (Fig. 7).Oily pattern 6 is similar to penetrating, total desirable oil mass can be divided into desirable ignite penetrate oil 402, desirable master penetrates oil 404 and the desirable allo follow-up oil 406 of penetrating.In general, desirable total oil mass can be according to penetrating the oil of penetrating that oily pattern and total oil mass are divided into desired number of times.
By as total be denoted as set shown in one group of step of 102 penetrate for three times oil, based on the minimum oil mass of engine speed and load, and by as setting igniting and follow-up oil mass of the hope that to instruct shown in 104 and 106 the step group by total being denoted as respectively, thereby realize distribution to desirable total oil mass.May cause or aggravate unstability because spray the oil mass that is less than minimum value, so minimum value is set.For example, may have many restrictions aspect the accuracy of the fuel delivery of oil-fired system, so that when attempting injection and be less than the minimum value that sets, oil-fired system just can not be sprayed desired amount exactly.Therefore, may spray inaccurate oil mass, thereby cause undesirable power operation.In addition, even minimum value can be set the minimum value that also can cause undesirable power operation or effulent less than spraying exactly for.
Figure 12 illustrates an embodiment at the fuel injection strategy of given speed and specified load.Mapping table shown in Figure 12 can be used for determining desirablely penetrating oily number of times, desirablely penetrating oil mass and desirablely penetrate oil regularly.Can set up a similar mapping table for penetrating oily minimum value.Therefore, can change the minimum oil mass of penetrating according to speed and load.In addition, can change according to acceleration minimum.
After having set minimum and desirable oil mass, by total be denoted as 108 and one group of step being shown in Fig. 5 and 6 be set in and penetrate the actual oil mass that will spray during the oil at every turn.On the program shown in the step group 102,104,106,108 preferably is stored in computer-readable medium the storage set such as ECM/ controller 58.In addition, controller can be worked to produce control and injection signal S
10, transmitting in order to transmission medium by mechanized data, this transmission medium can be placed to the diagnostic design display device and comprise that the input device (not shown) of display device and auxiliary keyboard communicates.In general, this program will be determined desirable oil mass according to speed and load, then fuel oil will be divided into the oil of penetrating of desired number of times.The oil mass and the minimum value of penetrating oil are compared at every turn, and make corresponding modification.Just produce injection signal then.
Please independently referring to Fig. 8, begin by 110 places that are distributed in of the determined total usable quantity of fuel of speed regulator, and guide minimum definite step 102 of penetrating oil mass into.In one embodiment, minimum igniting penetrated oil mass, minimum master and penetrated in the process that oil mass and minimum follow-up each of penetrating in the oil mass designs and test, program is checked heavy duty (override) respectively at step 112,114 and 116 places.The unit developer uses heavy duty as design tool, with situation and the dominated variable in the isolated motor.These heavy duties are not to be designed to use in the proper functioning of motor.If wish that penetrate oil to igniting carries out heavy duty, then will minimumly ignite and penetrate oil mass and be arranged to minimum igniting and penetrate oily fuel oil heavy duty and measure at step 118 place.Similarly, if wish the follow-up oil of penetrating is carried out heavy duty, then the minimum follow-up oil mass of penetrating is set to the minimum follow-up oily fuel oil heavy duty amount of penetrating at 120 places, and if wish to penetrate oil and carry out heavy duty main, then penetrate oil mass and be set to minimum master and penetrate oily fuel oil heavy duty amount the minimum master in 122 places.As mentioned above, in preferred embodiment, in the course of normal operation of motor, do not use heavy duty, therefore do not carry out above-mentioned inspection, that is to say that these steps are skipped.In one embodiment, if do not want heavy duty, perhaps motor is worked under the situation of the proper functioning that does not adopt heavy duty, then penetrate oil mass and determine that minimum igniting penetrate oil mass by being arranged to default minimum igniting, and determine the minimum follow-up oil mass of penetrating by being arranged to the default minimum follow-up oil mass of penetrating at 126 places at 124 places.At step 128 place,, determine that by in multidimensional lookup table lattice or mapping table, searching oil mass minimum master penetrates oil mass according to as searching and be provided with desirable total oil mass to be sprayed, engine speed and the load that minimum master penetrates the factor of oil mass.Perhaps, can use and set minimum igniting based on the similar lookup table of engine speed and load and penetrate oil mass and the minimum follow-up oil mass of penetrating.
Determine the desirable step group of penetrating oil mass 104 the heavy duty inspection of igniting since 130 places.If wish, then will desirablely ignite and penetrate oil mass and be arranged to desirable igniting and penetrate that oily fuel oil is heavily loaded to be measured at 132 places owing to purpose of design is carried out heavy duty.If never call heavy duty, program zero setting (zeroing) incident that judges whether to ignite at 134 places then.The zero setting incident of igniting is that suggestion should be decreased to zero incident with the oil mass that is placed in the pilot injection.The zero setting incident of igniting for example comprises by the battery running ECM of electric weight deficiency so that do not have enough energy to can be used for wishing that the injection of number of times penetrates moment of oil, high-acceleration and given injection strategy and do not want to ignite and penetrate oil, for example low speed shown in Figure 12 and low load situation.In one embodiment, read a bit mask,, then only want to carry out the main oil of penetrating if bit mask is zero (0).If bit mask is one (1), then wants execution to ignite and penetrate oil and the main oil of penetrating.If bit mask is two (2), then want to carry out main oil and the follow-up oil of penetrating penetrated, and if bit mask be three (3), then want to carry out all three kinds and penetrate oil.Therefore, if bit mask is zero or two, then will desirablely ignite at 136 places and penetrate that oil mass is arranged to is zero substantially.If bit mask is one or three,, by in lookup table, searching numerical value, thereby determine that desirable igniting penetrate oil mass according to the desired total fuel oil and the speed and the engine load of motor then at 138 places.Then, desirable igniting penetrated oil mass be arranged to the numerical value that takes out from lookup table or mapping table.The use of bit mask is relevant with executive routine.That is to say, can adopt any storage scheme of penetrating oil that to follow the tracks of desired number of times.For example, can utilize injection strategy as shown in figure 12 to determine desirable oily number of times and the type of penetrating.Desirablely penetrate oily number of times and type can be stored in lookup table, concordance list or other storage scheme such as bit mask.
See also Fig. 9, determine that at 106 places desirable follow-up mode of penetrating oil mass is similar with the definite mode of penetrating oil mass of igniting, and since the heavy duty inspection at 140 places.If owing to purpose of design wants to carry out heavy duty, then the desirable follow-up oil mass of penetrating is arranged to the desirable follow-up oily fuel oil heavy duty amount of penetrating at 142 places.If never call heavy duty, then program judges whether to take place follow-up zero setting incident at 144 places.Such incident for example comprises by the battery running ECM of electric weight deficiency so that does not have enough energy to can be used for wishing that the injection of number of times penetrates the moment of oil and high-acceleration and determine not want to carry out the follow-up oil of penetrating with injection strategy under present operating mode.Equally, read bit mask,, then only want to carry out the main oil of penetrating if bit mask is zero (0).If bit mask is one (1), then wants execution to ignite and penetrate oil and the main oil of penetrating.If bit mask is two (2), then want to carry out main oil and the follow-up oil of penetrating penetrated, and if bit mask be three (3), then want to carry out all three kinds and penetrate oil.If bit mask is four (4), then do not want to carry out any oil of penetrating, cut off strategy (cut out strategy) to carry out.Therefore, if bit mask is zero or one, then will be desirable at 146 places follow-up to penetrate that oil mass is arranged to be zero substantially.If bit mask is two or three,, by in lookup table, searching numerical value, thereby determine the desirable follow-up oil mass of penetrating according to the desired total fuel oil and the speed of motor then at 148 places.Then, the desirable follow-up oil mass of penetrating is arranged to the numerical value that takes out from lookup table or mapping table.
Figure 10 provides a kind of actual igniting that is used for determining spraying to penetrate oil mass, lead and penetrate oil mass and the follow-up example of penetrating prioritization (prioritization) method of oil mass.Should be understood that, that all priority of time penetrating the reality between the oil specificly penetrates oily pattern and change according to determined, thereby may be different for the different oily patterns of penetrating.The first step 149 of priority area separating method comprises according to penetrating oily pattern determines priority.Differentiation is ignited and is penetrated oil, the master penetrates oil and a follow-up example penetrating oily priority can comprise first step 150, this step 150 is that speed regulator system is determined, total usable quantity of fuel that will spray and minimum master penetrate oil mass and compare, if being less than or equal to minimum master, total usable quantity of fuel penetrates oil mass, then in step 152 with reality ignite and follow-up to penetrate that oil mass is arranged to be zero substantially, and the master of reality penetrates oil mass and is set to total usable quantity of fuel.Then, program forwards home position 110 (Fig. 8) to.Penetrate oil mass if be used for total useable fuel of injection events more than minimum master, then controller is at step 154 place, and total useable fuel that will spray and minimum master penetrate oil mass and minimum igniting penetrated the oil mass sum and compared.In addition, at step 154 place, controller penetrates desirable igniting at oil mass and minimum igniting penetrated oil mass and compared.Minimum master penetrates oil mass and minimum igniting penetrated the oil mass sum if total useable fuel is less than, and perhaps desirable igniting penetrated oil mass and be less than minimum igniting and penetrate oil mass, then penetrates oil mass igniting of step 156 place reality and is set to zero; And if desired, controller enters and judges whether that enough total useable fuels can be used for main oil and the follow-up step of penetrating oil of penetrating, as shown in the step group 158.This can guarantee that the main oil of penetrating has being higher than and ignites and follow-up priority of penetrating oil, thereby mainly penetrates that oil obtains that minimum master penetrates oil mass (if possible) or be the set total fuel oil of speed regulator system (penetrating oil mass if the desired total fuel oil of speed regulator is less than minimum master) at least.
Do not penetrate oil if there are enough fuel oils to can be used for igniting, then actual igniting penetrated oil mass and will be set to zero, and, controller is with total useable fuel and minimum master penetrates oil mass and the minimum follow-up oil mass sum of penetrating compares, can be used for the follow-up oil of penetrating to define how many fuel oils, and follow-uply penetrate oil mass and the minimum follow-up oil mass of penetrating compares desirable.If total fuel oil is less than minimum master and penetrates oil mass and the minimum follow-up oil mass sum of penetrating, the perhaps desirable follow-up oil mass of penetrating is less than the minimum follow-up oil mass of penetrating, then penetrate oil mass and be set to zero, and the master of reality is penetrated oil mass be arranged to total fuel oil or fuel oil of speed regulator output step 162 place reality follow-up.But, minimum master penetrates oil mass and the minimum follow-up oil mass sum of penetrating is less than or equal to total desirable fuel oil if judge at step 160 place, and desirable follow-up penetrate oil mass more than or equal the minimum follow-up oil mass of penetrating, then controller at 164 places with total desirable fuel oil and minimum master penetrates oil mass and the desirable follow-up oil mass sum of penetrating compares.If being less than minimum master, total fuel oil penetrates oil mass and the desirable follow-up oil mass sum of penetrating, then the master of reality penetrated oil mass and be arranged to minimum master and penetrate oil mass, and reality follow-up penetrated the fuel oil that oil mass is arranged to equal total deduct the difference that minimum master penetrates oil mass at step 166 place.Program is back to initial position 110 then.
But, if total fuel oil more than or equal minimum master and penetrate oil mass and the desirable follow-up oil mass sum of penetrating, then the follow-up oil mass of penetrating in step 168 place reality is set to the desirable follow-up oil mass of penetrating, and the master of reality is penetrated oil mass be arranged to total useable fuel and deduct actual follow-up difference of penetrating oil mass (this value has been configured to the desirable follow-up oil mass of penetrating).Afterwards, the initial position 110 of Fig. 8 is got back in control.Therefore, this program can make the main oil of penetrating have that being higher than ignites and penetrate oil and follow-uply penetrate oily priority.In addition, this program can make to ignite and penetrate oil and have and be higher than follow-up priority of penetrating oil, and recognizes simultaneously, may there not being enough fuel oils to can be used for mainly penetrating oil and igniting when penetrating oil, may have enough fuel oils and be used for main oil and the follow-up oil of penetrating penetrated.Therefore, do not have enough fuel oils to can be used for igniting after the oil transportation judging, controller enters and judges whether that enough fuel oils can be used for follow-up step of penetrating oil.In addition, program is checked to check that whether having enough fuel oils to can be used for minimum master penetrates oil and the desirable follow-up oil mass of penetrating, if and enough, the follow-up oil of penetrating just will obtain its desirable amount, penetrate oil and will obtain its minimum value and any additional part and lead.Penetrate oil and the desirable follow-up oil mass of penetrating if be not enough to be used for minimum master, the main oil of penetrating just will obtain its minimum value, and the follow-up oil of penetrating obtains its minimum oil mass and adds any additional part, thereby makes the actual follow-up oil mass of penetrating can be as much as possible near the desirable follow-up oil mass of penetrating.
If in step 154, judge total fuel oil more than or equal that minimum master penetrates oil mass and minimum igniting penetrated the oil mass sum, and desirable igniting penetrated oil mass and penetrated oil mass greater than minimum igniting, then controller at step 170 place with total fuel oil and minimum ignite penetrate oil mass, minimum master penetrates oil mass and the minimum follow-up oil mass sum of penetrating compares, and the desirable follow-up oil mass of penetrating is compared in the minimum follow-up oil mass of penetrating.
If at step 170 place, total fuel oil be less than minimum ignite penetrate oil mass, minimum master penetrates oil mass and the minimum follow-up oil mass sum of penetrating, the perhaps desirable follow-up oil mass of penetrating is less than the minimum follow-up oil mass of penetrating, and then the follow-up oil mass of penetrating in step 172 place reality is set to zero; And at step 174 place, total fuel oil and minimum master are penetrated oil mass to controller and desirable igniting penetrated the oil mass sum and compared.Minimum master penetrates oil mass and desirable igniting penetrated the oil mass sum if total fuel oil is less than, then the master of reality penetrated oil mass and be arranged to minimum master and penetrate oil mass, and igniting of reality penetrated oil mass and be set to total fuel oil and deduct the difference that minimum master penetrates oil mass at step 176 place.Perhaps, if total fuel oil penetrates oil mass more than or equal to minimum master and desirable igniting penetrated the oil mass sum, then igniting of reality penetrated oil mass and be arranged to desirable igniting and penetrate oil mass, and the master of reality is penetrated oil mass be arranged to total fuel oil and deduct actual igniting and penetrate the difference of oil mass (this value has been configured to desirable igniting and has penetrated oil mass) at step 178 place.Penetrate after oil mass and actual master penetrate oil mass setting actual igniting, program is returned initial position 110.Therefore, controller can judge whether that enough fuel oils can be used for that minimum master penetrates oil mass, minimum igniting penetrated oil mass and the minimum follow-up oil mass of penetrating, if and do not have enough fuel oils to can be used for all three kinds to penetrate oil, it is then actual that follow-up to penetrate that oil mass is arranged to be zero substantially.Afterwards, controller judges whether that enough fuel oils can satisfy simultaneously that minimum master penetrates oil mass and desirable igniting penetrated oil mass.If there are enough fuel oils can satisfy simultaneously that minimum master penetrates oil mass and desirable igniting penetrated oil mass, then ignite and penetrate oil mass and accept desirable amount, and the main oil mass of penetrating accept that it is minimum.Surpass that minimum master penetrates oil mass and the desired any part that has more of penetrating the oil mass sum of igniting is assigned to and mainly penetrates oil, because these parts are not enough for the minimum follow-up oil of penetrating.But, if there are not enough fuel oils can satisfy simultaneously that minimum master penetrates oil mass and desirable igniting penetrated oil mass, then the master penetrates oil mass and obtains its minimum oil mass, ignite and penetrate oil mass and then obtain its minimum oil mass and add any part that has more, penetrate oil and penetrate oil mass near desirable igniting as much as possible so that ignite.
If in step 170, total fuel oil more than or equal to minimum ignite penetrate oil mass, minimum master penetrates oil mass and the minimum follow-up oil mass sum of penetrating, and the desirable follow-up oil mass of penetrating is more than or equal to the minimum follow-up oil mass of penetrating, and then controller is located total oil mass and minimumly follow-uply penetrated that oil mass, minimum master are penetrated oil mass and desirable igniting penetrated the oil mass sum and compared in step 180 (Figure 11).If total oil mass be less than minimumly follow-uply penetrate oil mass, minimum master penetrates oil mass and desired igniting penetrated the oil mass sum, then in step 182, the master of reality is penetrated oil mass to be arranged to minimum master and to penetrate oil mass, the follow-up oil mass of penetrating of reality is arranged to the minimum follow-up oil mass of penetrating, and igniting of reality is penetrated oil mass be arranged to equal total oil mass and deduct actual master and penetrate oil mass, deduct actual follow-up difference of penetrating oil mass again.Afterwards, program continues to carry out initial position 110.Therefore, penetrate oil by giving to ignite more than any fuel oil that has more of three minimum sums, making equally ignites penetrates oil and has and be higher than follow-up priority of penetrating oil, and this can make it penetrate oil mass near desirable igniting as much as possible.
If in step 180, total oil mass more than or equal to minimumly follow-uply penetrate oil mass, minimum master penetrates oil mass and desirable igniting penetrated the oil mass sum, then in step 186, igniting of reality penetrated oil mass and be arranged to desirable igniting and penetrate oil mass.Then, controller is penetrated total oil mass and the desirable follow-up oil mass, minimum master of penetrating oil mass and actual igniting/desirable and is ignited and penetrate the oil mass sum and compare in step 186.If total oil mass be less than desirablely follow-uply penetrate oil mass, minimum master penetrates oil mass and desirable igniting penetrated the oil mass sum, then the master of reality is penetrated oil mass and be arranged to minimum master and penetrate oil mass, and in step 188, reality follow-up penetrated oil mass and be arranged to total oil mass and deduct minimum master and penetrate oil mass and deduct desirable igniting again and penetrate the difference of oil mass.Therefore, penetrate after oil mass and minimum master penetrate oil mass having satisfied desirable igniting, will give the follow-up oil of penetrating above the minimum follow-up fuel oil that has more of penetrating oil mass, so that it is as much as possible near desirable follow-up oil mass of penetrating.
If on the contrary, total oil mass more than or equal to desirablely follow-uply penetrate oil mass, minimum master penetrates oil mass and desirable igniting penetrated the oil mass sum, then in step 190, the follow-up oil mass of penetrating of reality is arranged to the desirable follow-up oil mass of penetrating, and with the master of reality penetrate oil mass be arranged to total oil mass deduct desirable follow-up penetrate oil mass and deduct desirable igniting again penetrate the difference of oil mass.Therefore, controller guarantees to ignite and penetrates oil and accept desirable igniting and penetrate oil mass, judges whether then and enough fuel oils can be used for the desirable follow-up oil mass of penetrating.Penetrate oil mass if there are enough fuel oils to can be used for the desirable follow-up oil mass of penetrating with igniting, then program is given the main oil of penetrating with available any part that has more.Afterwards, program turns back to initial position 108 to be used for next spraying cycle.This fuel distribution strategy has flexibility, penetrates oil so that program can be provided with one controllable (governing).This is controllable, and to penetrate oil be the oil of penetrating of accepting all Fuel Remaineds after both obtain to satisfy at other.For example, if desirable master penetrates oil mass and the desirable follow-up oil mass of penetrating is arranged to low value, they will be satisfied, and ignite that to penetrate oil mass will be that oil is penetrated in the adjustment of accepting all fuel oils that have more.As mentioned above, this is exemplary, distinguish igniting and penetrate oil, mainly penetrate oil and follow-uply penetrate priority approach between the oil and may penetrate oily pattern and different according to motor specific.
Industrial applicability
As mentioned above, adopt according to injection method of the present invention and system and can under the engine operating condition that changes, carry out fuel management and emission control better.Although carry the particular spray waveform of multiple fuel injection to change according to specific engine operating condition, but no matter the present invention can be regardless of the type of used control fuel injection device, no matter used engine type and used fuel oil type, and can dynamically determine to penetrate timing, injection duration, emitted dose that oil phase closes with each injection, penetrates any delay and relative cylinder piston displacement when respectively penetrating oily beginning the between the oil.From this respect, relevant rail pressure, engine speed, engine load, ignite/lead/the follow-up endurance, ignite/lead/follow-up oil mass, follow-up constant time lag, ignite/lead regularly and the suitable fuel oil mapping table of other parameter, can store or programming in ECM 58, under all operating modes of motor, using.These exercisable mapping table, form and/or mathematical equations that are stored in the ECM programmable storage are determined and control and suitable multi-injection incident various parameters that be associated, that comprise fuel injection amount, to realize desirable effulent control.
In one embodiment of the invention, the injection strategy that is stored as mapping table or lookup table (for example shown in Figure 12) can be used for determining desirable fuel injection number of times, penetrate the oil mass of oil and will spray penetrate oil regularly.But, current penetrate oily mode parameter may be not exclusively and the value of being stored in mapping table or the lookup table be complementary.Therefore, may need the value in the mapping table is carried out interpolation, determining desirablely to penetrate oily number of times and their relevant oil mass, that is desirable injection events.Because, can the different zone of traversal in mapping table, penetrate the number of times of oil, the specific timing of penetrating the oil mass of oil and penetrating oil may change.Therefore, in one embodiment, the present invention can by the desirable oil mass of injection events desirable being penetrated oily number of times and being associated with penetrate minimum oil mass and the priority that oil sets and compare for specific, to determine all fuel distribution of penetrating between the oil, above-mentionedly desirablely penetrate oily number of times and the desirable oil mass that is associated can be determined by interpolation mapping table as shown in figure 12, and above-mentionedly penetrate minimum oil mass and the priority that oil sets and also can determine by the mapping table of interpolation such as Figure 12 for specific.Then, the present invention correspondingly revises injection signal and injection signal is transported to suitable fuel injection apparatus.
What people can approve equally is that the residing certain environmental conditions of engine operation can influence the effulent quantity that motor produces.When environmental conditions changed, the effulent that motor is discharged also may change.As a result, may must penetrate oil adjustment, emissions from engines is remained in the acceptable limited field according to environmental conditions to multi-injection.These adjustment may comprise to be adjusted delay between pilot injection timing and amount, main injection timing and amount, pilot injection and the main injection and the delay between main injection and the follow-up injection.Can be by providing to ECM 58 and being connected right sensors (as below illustrating) and coming environmental conditions is monitored.
Figure 13 illustrates to be delivered to the illustrative diagram of ECM 58 with the representative sensor input of the residing environmental conditions of monitoring engine operation.For example, motor that can right sensors is specific is relatively located and is arranged to the 58 input appropriate signal 82 and 84 to ECM, and they represent motor residing ambient temperature of work and/or pressure at present.According to ambient temperature and/or pressure; ECM 58 can select to be used for the suitable mapping table or the lookup table of this certain environmental conditions; determine the suitable parameters of each injection events then or according to existing ambient temperature and/or pressure, perhaps ECM 58 can determine and will or adjust the factor to the correction of the injection events parameter of the condition calculating gained of or standard normal according to such as standard temperature and pressure on daytime some.For this reason, suitable mapping table and lookup table can comprise one group of such mapping table and/or the lookup table of formulating based on certain specific environment temperature and/or pressure range, and mapping table on the same group and/or lookup table not can be applicable to each predetermined scope.On the other hand; ECM 58 can comprise equally based on one group of mapping table of ambient temperature and/or pressure and/or lookup table; this make ECM 58 can determine to can be applicable to each injection events various parameters correction or adjust the factor, revise or adjust the condition of the running engine of the factor or standard normal and carry out ratiometric conversion with reference to some.
As shown in figure 13, according to the sensor input of ambient temperature 82 and/or external pressure 84, ECM 58 will export appropriate signal S to fuel injection apparatus
10Penetrate oil timing and/or oil mass (adjusting action 94) to adjust desirable igniting, to adjust main oil timing and/or the oil mass (adjusting action 96) of penetrating, ignite and main penetrate desirable delay between the oil (adjusting action 98) with adjustment, and/or with the adjustment follow-up desirable delay between the oil (adjusting action 100) of penetrating of advocating peace.Can by ECM finish these adjust in the action 94,96,98 and 100 any one or a plurality of, realize that desirable igniting penetrate oil, main oil and the follow-up oil of penetrating penetrated, with the control exhaust emission, and keep such effulent within a certain predetermined limited field.
People also can admit with forseeable, except ambient temperature 82 and/or external pressure 84, equally also can detect the operating mode of other parameter or motor and they are input to ECM 58, to determine the environmental working condition of motor.For example, ECM 58 can be connected to the sensor of the signal 86 of the intake manifold's temperature that is associated with motor in order to the reception expression, in order to receive the sensor of the signal 88 of representing intake manifold's pressure, represent the sensor of the signal 90 of humidity in order to reception, and/or represent the sensor of the signal 92 of crankcase oil pressure in order to reception.These engine parameters can come related and conversion by various mapping tables, form and/or equation equally, to set the environmental working condition of motor; And, according in a plurality of such signals 82,84,86,88,90 and 92 any one or a plurality of, ECM 58 can carry out adjust in the action 94,96,98 and/or 100 any one or a plurality of, and output appropriate signal S
10Come the parameter of multi-injection incident is adjusted.Preferably, provide all sensors of signal 82,84,86,88,90 and/or 92 to monitor the relevant parameter that it is associated with engine operation continuously, and each such sensor is exported appropriate signal to represent so detected parameter to ECM 58.In addition, people can approve and predictably, can use other parameter except that shown in Figure 13 to determine the environmental working condition of motor equally.
Although oil-fired system shown in Figure 1 12 is depicted as representational six fuel injector systems, but people can approve and predictably, the present invention can be used for comprising any amount fuel injector and can be in the fuel injection system of hydraulic actuating and mechanically actuated two types control fuel injection device unit, and also can be used for having in the common rail system of numerical control fuel valve.When using mechanically actuated electronically controlled fuel injector, come house steward 38 in the alternate figures 1 with the mechanically actuated mechanism that makes each fuel injector pressurization fuel oil usually, as U. S. Patent the 5th, 947, such mechanism has been shown in No. 380.Other mechanism that realizes this task is known and available equally.
As being clear that from the foregoing description, some aspect of the present invention is not subjected to the specific detail restriction of example described here, therefore can think that also those skilled in the art that can expect other modification and application, perhaps its equivalent way.Therefore, want to make claims to cover and do not exceed the present invention's spirit and such modification and application protection domain, all.
After having studied accompanying drawing, this specification and appended claims, can learn others of the present invention, purpose and advantage.
Claims (7)
1. fuel injection control systems that is used for desirable oil mass is divided into a plurality of independent oil masses, this system comprises:
At least one fuel injection apparatus, they can be worked to carry multi-injection to penetrate oil;
Electronic controller, it is connected in described at least one fuel injection apparatus, and is configured to as the function of engine speed and engine load the suitable oily pattern of penetrating be decided;
Described controller can work with determine desirable ignite penetrate oil mass, minimum master penetrates oil mass and the desirable follow-up oil mass of penetrating;
Described controller can work with total usable quantity of fuel and desirable ignite penetrate oil mass, minimum master penetrates oil mass and the desirable follow-up oil mass of penetrating compares;
Described controller can be worked, and igniting of the reality of being sprayed by described at least one fuel injection apparatus penetrated oil mass, actual master penetrates oil mass and the actual follow-up oil mass of penetrating to determine to instruct; And
Controller can be worked and be penetrated oil, main penetrates oil and follow-up at least one timing of penetrating in the oil is in precedence to make as the determined function of penetrating oily pattern to ignite.
2. fuel injection control systems as claimed in claim 1, it is characterized in that, controller also can be worked to judge whether that enough usable quantity of fuels can be used for minimum master and penetrate oil mass, judge whether that enough desirable oil masses can be used for desirable igniting and penetrate oil mass, judge whether that enough desirable oil masses can be used for the desirable follow-up oil mass of penetrating, and judge whether that enough desirable oil masses can be used for desirable igniting and penetrate oil mass and the follow-up oil mass of penetrating.
3. fuel injection control systems as claimed in claim 1, it is characterized in that, also comprise: controller can be worked determining that minimum igniting penetrate oil mass and the minimum follow-up oil mass of penetrating, and controller can work with available oil mass and minimum ignite penetrate oil mass, minimum master penetrates oil mass and the minimum follow-up oil mass of penetrating compares.
4. fuel injection control systems as claimed in claim 3, it is characterized in that, also comprise: controller can be worked so that minimum igniting penetrated oil mass and desirable igniting penetrated oil mass and compared, and, if desirable igniting penetrated oil mass and be less than minimum igniting and penetrate oil mass, then igniting of reality being penetrated that oil mass is arranged to is zero substantially; And controller can be worked follow-uply penetrating oil mass and the desirable follow-up oil mass of penetrating compares with minimum, and if the desirable follow-up oil mass of penetrating is less than the minimum follow-up oil mass of penetrating, then reality follow-up being penetrated that oil mass is arranged to is zero substantially.
5. fuel injection control systems as claimed in claim 3, it is characterized in that, controller penetrates desirable oil mass and desirable and minimum igniting at oil mass, minimum master penetrates oil mass, but and desirable and minimum follow-uply penetrate the workability that oil mass compares and also comprise: controller can be worked and be compared so that desirable oil mass and minimum master are penetrated oil mass, and, if being less than minimum master, desirable oil mass penetrates oil mass, then the master of reality is penetrated oil mass and be arranged to desirable oil mass, and igniting of reality penetrated oil mass and follow-up to penetrate that oil mass is arranged to be zero substantially; And if desirable oil mass is penetrated oil mass more than minimum master, then desirable oil mass and minimum master are penetrated oil mass and minimum igniting penetrated the oil mass sum and compared.
6. fuel injection control systems as claimed in claim 5, it is characterized in that, minimum master penetrates oil mass and minimum igniting penetrated the oil mass sum if desirable oil mass is less than, then can to work igniting of reality penetrated oil mass is arranged to be zero to controller substantially, and with desirable oil mass and minimum master penetrates oil mass and the minimum follow-up oil mass sum of penetrating compares, if being less than minimum master, desirable oil mass penetrates oil mass and the minimum follow-up oil mass sum of penetrating, then reality follow-up being penetrated that oil mass is arranged to is zero substantially, and the master of reality is penetrated oil mass be arranged to desirable oil mass.
7. fuel injection control systems as claimed in claim 6, it is characterized in that, if desirable oil mass penetrates oil mass more than minimum master and minimum igniting penetrated the oil mass sum, then controller can be worked so that desirable oil mass and minimum master are penetrated oil mass, minimum igniting penetrated oil mass and the minimum follow-up oil mass sum of penetrating compares, if and desirable oil mass is less than minimum master and penetrates oil mass, minimum igniting penetrated oil mass and the minimum follow-up oil mass sum of penetrating, then reality follow-up being penetrated that oil mass is arranged to is zero substantially, and desirable oil mass and minimum master penetrated oil mass and desirable igniting penetrated the oil mass sum and compared, minimum master penetrates oil mass and desirable igniting penetrated the oil mass sum if desirable oil mass is less than, then the master of reality being penetrated oil mass is arranged to minimum master and penetrates oil mass, and igniting of reality penetrated oil mass be arranged to desirable oil mass and deduct the difference that minimum master penetrates oil mass, if and desirable oil mass penetrates oil mass greater than minimum master and desirable igniting penetrated oil mass, then igniting of reality penetrated oil mass and be arranged to desirable igniting and penetrate oil mass, and the master of reality is penetrated oil mass be arranged to desirable oil mass and deduct desirable igniting and penetrate the difference of oil mass.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510138171 CN1995732A (en) | 2005-12-31 | 2005-12-31 | Method for distributing the fuel oil of speed regulator to independent three oil mass in a stable manner |
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| CN 200510138171 CN1995732A (en) | 2005-12-31 | 2005-12-31 | Method for distributing the fuel oil of speed regulator to independent three oil mass in a stable manner |
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| CN1995732A true CN1995732A (en) | 2007-07-11 |
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| CN 200510138171 Pending CN1995732A (en) | 2005-12-31 | 2005-12-31 | Method for distributing the fuel oil of speed regulator to independent three oil mass in a stable manner |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115045767A (en) * | 2022-04-27 | 2022-09-13 | 一汽解放汽车有限公司 | Method, device, controller and storage medium for controlling fuel injection of dual-fuel engine |
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2005
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115045767A (en) * | 2022-04-27 | 2022-09-13 | 一汽解放汽车有限公司 | Method, device, controller and storage medium for controlling fuel injection of dual-fuel engine |
| CN115045767B (en) * | 2022-04-27 | 2023-08-18 | 一汽解放汽车有限公司 | Dual-fuel engine injection control method, device, controller and storage medium |
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