CN102345526A - Method and apparatus for controlling combustion motor - Google Patents
Method and apparatus for controlling combustion motor Download PDFInfo
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- CN102345526A CN102345526A CN2011102132124A CN201110213212A CN102345526A CN 102345526 A CN102345526 A CN 102345526A CN 2011102132124 A CN2011102132124 A CN 2011102132124A CN 201110213212 A CN201110213212 A CN 201110213212A CN 102345526 A CN102345526 A CN 102345526A
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- intake manifold
- cylinder
- valve
- manifold injection
- injection valve
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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
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/008—Controlling each cylinder individually
- F02D41/0085—Balancing of cylinder outputs, e.g. speed, torque or air-fuel ratio
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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
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/02—Circuit arrangements for generating control signals
- F02D41/14—Introducing closed-loop corrections
- F02D41/1438—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor
- F02D41/1444—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the characteristics of the combustion gases
- F02D41/1454—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the characteristics of the combustion gases the characteristics being an oxygen content or concentration or the air-fuel ratio
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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
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/24—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means
- F02D41/2406—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means using essentially read only memories
- F02D41/2425—Particular ways of programming the data
- F02D41/2429—Methods of calibrating or learning
- F02D41/2438—Active learning methods
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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
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/24—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means
- F02D41/2406—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means using essentially read only memories
- F02D41/2425—Particular ways of programming the data
- F02D41/2429—Methods of calibrating or learning
- F02D41/2451—Methods of calibrating or learning characterised by what is learned or calibrated
- F02D41/2464—Characteristics of actuators
- F02D41/2467—Characteristics of actuators for injectors
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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
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/30—Controlling fuel injection
- F02D41/3094—Controlling fuel injection the fuel injection being effected by at least two different injectors, e.g. one in the intake manifold and one in the cylinder
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
Abstract
The invention relates to a method and an apparatus for controlling a combustion motor, particularly to a method for correcting the injection amount of at least one first inlet air pipe injection valve (150a) of a first cylinder (10a) for a first venting part (A) of a combustion motor. The first cylinder (10a) comprises at least one first straight spraying valve (110a) and at least one first inlet air pipe injection valve. The method comprises the following steps: directly spraying Lambda measuring steps (1050), with the fuel only directly sprayed to the first cylinder (10a) and figuring out the direct injecting Lambda signals of the first cylinder, the inlet air pipe Lambda measuring step (1060), with the fuel being injected to the first cylinder (10a) at the preset distribution ratio of the first inlet air injection valve (110a) to the first straight injection valve (150a) and figuring out the inlet air pipe injection Lambda signal of the first cylinder (10a), and Lambda comparison step, with the value of the directly injected Lambda signals being compared to the value of the inlet air pipe injection Lambda signals.
Description
Technical field
The present invention relates to a kind of method and apparatus that is used for controlling combustion engine.
Background technique
Disclose some internal-combustion engines by DE 10 2,008 002511 A1, in these internal-combustion engines, injection valve both can be arranged in the suction tude and also can be arranged in the firing chamber.The guiding type combustion method requirement injection valve of particularly spraying has higher measuring accuracy, so as can to utilize best have superiority (multiple injection that for example particularly for the heating of startup, warm-operation or catalyst, is accompanied by minimum single injection event).Especially can in the scope of minimum flow, guarantee desired measuring accuracy through special method.
Disclose a kind of method by DE 10 2,007 020964 A1, realized in the internal-combustion engine of good as far as possible smoothness of operation in direct injection, the torque contribution of balanced each cylinder with this method.At this; Fuel via the spray that helps internal-combustion torque in the firing chamber of cylinder, and during the working stroke of cylinder in spray the back zero moment of torsion ground burner oil, wherein; Arrange the back to spray like this, make exhaust consistent with stoichiometric empty combustion mixed gas basically.
Both can be arranged in the internal-combustion engine that also can be arranged in the firing chamber in the suction tude at injection valve; In order to improve run stability and to reduce discharging; Need to calibrate especially like this fuel quantity of intake manifold injection valve; Make all cylinders obtain balance, thereby identical fuel quantity is injected in all cylinders.
Summary of the invention
Technical problem to be solved by this invention solves by the described method of independent claims through a kind of.
As disclosed by DE 10 2,007 020964 A1, the cylinder balancing function can not be passed on the intake manifold injection valve, because can't carry out to zero-emission intake manifold injection.Therefore the calibration of intake manifold injection valve is undoubtedly unworkable.Both can be arranged in the internal-combustion engine that also can be arranged in the firing chamber in the suction tude at a kind of injection valve, can be for example through calibrate straight spray valve like the disclosed cylinder balancing function of DE 10 2,007 020964 A1.Through comparing the signal of exhaust gas oxygensensor, can compare the emitted dose of intake manifold injection valve to a cylinder with straight spray valve.Therefore the intake manifold injection valve can be calibrated to each cylinder and straight spray valve adaptably.Thereby emitted dose that especially can balance intake manifold injection valve.
According to the present invention, in direct injection λ measurement procedure, obtain first signal of exhaust gas oxygensensor, fuel is only directly sprayed into first cylinder in this step.In suction tude λ measurement procedure, fuel only sprays into first cylinder through the intake manifold injection valve or through straight spray valve, wherein, fixes through the intake manifold injection valve or the selection of directly spraying the distribution ratio between the valve injected fuel amount.In this suction tude λ measurement procedure, obtain the secondary signal of exhaust gas oxygensensor.In the λ comparison step, first signal and the secondary signal of having obtained compared.Confirm thus whether the emitted dose of being sprayed by the intake manifold injection valve has deviation and this deviation what are with the emitted dose that straight spray valve sprays.
If the straight spray valve to first cylinder is calibrated in the direct injection calibration steps, the significant advantage that so this way is brought is, can calibrate the intake manifold injection valve.
As if the straight spray valve of calibrating first cylinder through the torque contribution of balance first cylinder and another cylinder, advantage is so, and the calibration of directly spraying valve is simple especially, and has realized the balance of intake manifold injection valve.
If in suction tude λ measurement procedure; Only inject fuel into (all cylinders are all shared exhaust place with first cylinder) in all cylinders except that first cylinder via the injection valve of calibrating; So particularly advantageous is that the deviation of the λ signal of in the λ comparison step, obtaining can be assigned to the first intake manifold injection valve especially reliably.
If in suction tude λ measurement procedure; Only via straight spray valve; Without the intake manifold injection valve; Inject fuel into (all cylinders are all shared exhaust place with first cylinder) in all cylinders except that first cylinder; So particularly advantageously be; By method of the present invention is especially reliably and simple especially, can separately carry out because directly spray the calibration of valve and intake manifold injection valve.
If in spraying the correction step,, do the significant advantage that has so like this and be that the emitted dose of the first intake manifold injection valve has obtained correction according to the emitted dose that the result of λ comparison step changes the first intake manifold injection valve.
If when the value of intake manifold injection λ signal is greater than the value of direct injection λ signal, spraying the emitted dose of revising raising intake manifold injection valve in the step, the advantage of doing like this is, can prevent the very few injection of intake manifold injection valve.
If when the value of intake manifold injection λ signal during less than the value of direct injection λ signal, in spraying the correction step, the emitted dose of intake manifold injection valve is diminished, the advantage of doing like this is, can prevent that the intake manifold injection valve from too much spraying.
If when spray revising the value of value that step is repeated to intake manifold injection λ signal and direct injection λ signal and having deviation and this deviation less than the ability predetermined threshold value; The advantage of doing like this is that especially the emitted dose of spraying through the intake manifold injection valve is approximately equal to the emitted dose of spraying through straight spray valve at least.
As if the distribution ratio of selecting like this to be scheduled to, fuel is only sprayed via the first intake manifold injection valve, not spray via the first straight spray valve, the advantage of doing so like this is that especially said method is reliable especially.
If implement to be used at least two by method of the present invention, during especially all intake manifold injection valve, the advantage of doing like this particularly in, balance the torque contribution of emitted dose and cylinder, the intake manifold injection valve of these cylinders is calibrated.
Description of drawings
Next set forth form of implementation of the present invention with reference to the accompanying drawings in detail.In the accompanying drawings:
Fig. 1 shows the cylinder by claim 1 internal-combustion engine as described in the preamble;
Fig. 2 shows the topological diagram of the internal-combustion engine of multi cylinder;
Fig. 3 shows the flow process by method of the present invention.
Embodiment
Fig. 1 shows the cylinder 10 of internal-combustion engine, this cylinder band firing chamber 20, piston 30, and piston is connected with bent axle 50 with connecting rod 40.
During piston 30 downward movements, in a known way via suction tude 80 will be to be burnt air suck firing chamber 20.During piston 30 upstrokes, spent air extrudes from firing chamber 20 via outlet pipe 90.Amount via suction tude 80 inhaled airs is the inflation modifier adjusting of closure 100 via one in an embodiment, and the position of this closure is confirmed by controller 70.
Fuel is via being arranged in the straight spray valve 110 in the firing chamber 20 and being ejected in the air that from suction tude 80, pumps out via the intake manifold injection valve 150 that is arranged in the suction tude 80, and in firing chamber 20, forms empty burning mixt.Usually confirm by controller 70 via the endurance and/or the intensity of trigger signal through the amount of straight spray valve 110 injected fuel and through the amount of intake manifold injection valve 150 injected fuel.Spark plug 120 is lighted the sky burning mixt.
During via straight spray valve 110 burner oils, can in firing chamber 20, especially produce a kind of thin empty burning mixt.Mainly confirm through lighting torque that this thin empty burning mixt produces by the amount of injected fuel.Therefore directly during fuel, can from the moment of torsion that produces, obtain the amount of injected fuel.
Via intake manifold injection valve 150 burner oils the time, in firing chamber 20, produce a kind of stoichiometric uniform empty burning mixt usually.In this uniform empty burning mixt, mainly confirm by the aeration quantity of suction through the moment of torsion that igniting produces.Therefore when intake manifold injection fuel, can't from the moment of torsion that has produced, infer the amount of injected fuel usually.
An exhaust gas oxygensensor 130 is arranged in outlet pipe 90, and it is measured combustion air and passes to controller 70 than λ and with it.The NOx storage catalytic converters that is arranged in the circuit of outlet pipe 90 guarantees that the content of exhaust NOx significantly descends.
Fig. 2 shows the topological diagram of internal-combustion engine, in an embodiment for the internal-combustion engine of eight cylinders is arranged.The first cylinder 10a, the second cylinder 10b, the 3rd cylinder 10c, four-cylinder 10d, the 5th cylinder 10e, the 6th cylinder 10f, the 7th cylinder 10g and the 8th cylinder 10h have been shown among the figure.Each that is respectively eight cylinder 10a, 10b, 10c, 10d, 10e, 10f, 10g, 10h sets each one straight spray valve 110a, 110b, 110c, 110d, 110e, 110f, 110g, 110h and each intake manifold injection valve 150a, 150b, 150c, 150d, 150e, 150f, 150g, 150h.
All cylinders are shared suction tude 80 and outlet pipe 90, wherein, are that suction tude 80 or outlet pipe 90 are all in importing of leading to these cylinders and derivation pipeline place branch.The branch road that leads to each cylinder of outlet pipe 90 is not shown in Fig. 2.The common first exhaust place A that constitutes of the unshowned derivation pipeline of cylinder 10a, 10b, 10c, 10d.The common formation of the derivation pipeline of unshowned cylinder 10e, 10f, 10g, the 10h second exhaust place B.The exhaust of the first exhaust place A itself and through the exhaust of the second exhaust place B of the second exhaust gas oxygensensor 130b together through 90 outputs of shared outlet pipe before, through the first exhaust gas oxygensensor 130a.
Fig. 3 shows the flow process by method of the present invention.Step 1000 indicates the beginning of said method.Follow by step 1010, in this step, check, whether implemented calibration intake manifold injection valve 150a, 150b, 150c, 150d, 150e, 150f, 150g, 150h.But, also can consider only to check and whether the part of intake manifold injection valve 150a, 150b, 150c, 150d, 150e, 150f, 150g, 150h implemented calibration as alternative.The latter is especially reasonable in the time should only calibrating some rather than whole intake manifold injection valve.If implemented calibration, then get into step 1020, method finishes in this step.If also do not implement calibration, then get into step 1030.
Whether check calibrates all straight spray valve 110a, 110b, 110c, 110d, 110e, 110f, 110g, 110h in step 1030.If only hope several intake manifold injection valves are calibrated, only check in step 1030 so, all are calibrated with the straight spray valve of shared exhaust place of intake manifold injection valve to be calibrated.If for example only should calibrate the first intake manifold injection valve 150a, in step 1030, check so, whether calibrated the straight spray valve of exhaust place A, also be straight spray valve 110a, 110b, 110c, 110d in an embodiment.If then then get into direct injection λ measurement procedure 1050.If not, then get into direct injection calibration steps 1040.As previously mentioned, in other process of said method, can know in step 1060,1070,1080 that especially the straight spray valve that is equipped with exhaust place of intake manifold injection valve to be calibrated is calibrated.
At step 1040 lieutenant colonel collimation spray valve.This calibration especially can be through a kind of for example disclosed cylinder balancing method realization in DE 10 2,007 020 964 A1.In step 1040, can calibrate all straight spray valves, in step 1030, be verified the straight spray valve that whether is calibrated but also can consider only to calibrate those.After step 1040 finished, fork returned step 1030 again.
In step 1050, fuel only is ejected in all cylinders 10 of exhaust place via straight spray valve 110 and without intake manifold injection valve 150, and intake manifold injection valve to be calibrated is arranged in exhaust place.For example be stored in the controller 70 by corresponding exhaust gas oxygensensor 130 detected λ values.If should calibrate for example all intake manifold injection valve 150a, 150b, 150c, 150d, 150e, 150f, 150g, 150h, so only inject fuel among all cylinder 10a, 10b, 10c, 10d, 10e, 10f, 10g, the 10h via straight spray valve 110a, 110b, 110c, 110d, 110e, 110f, 110g, 110h.There is not fuel to spray via intake manifold injection valve 150a, 150b, 150c, 150d, 150e, 150f, 150g, 150h.Exhaust gas oxygensensor 130a detects the direct injection λ signal of exhaust place A.Exhaust gas oxygensensor 130b detects the second direct injection λ signal of exhaust place B.Exhaust place A gets the value of direct injection λ signal and the value of the second direct injection λ signal is stored in the controller 70.
Otherwise if only should calibrate the first intake manifold injection valve 150a, fuel only is ejected in all cylinders of the first exhaust place A, that is is ejected among cylinder 10a, 10b, 10c, the 10d via straight spray valve 110a, 110b, 110c, 110d so.There is not fuel to spray via intake manifold injection valve 150a, 150b, 150c, 150d.Exhaust gas oxygensensor 130a detects direct injection λ signal, and the value of this signal is stored in the controller 70.Fuel can or via straight spray valve 110e, 110f, 110g, 110h, via intake manifold injection valve 150e, 150f, 150g, 150h or via the combined jet of straight spray valve and intake manifold injection valve in the cylinder 10e of the second exhaust place B, 10f, 10g, 10h.
After the step 1050 is step 1060.In the step 1060,1070,1080,1090,1100 that links up, implement original calibration to the intake manifold injection valve.These steps are at first only implemented to the first intake manifold injection valve to be calibrated.Whether check calibrates all intake manifold injection valves to be calibrated in the step 1110 after the step 1100.If not then fork is got back to step 1060, and is the second intake manifold injection valve execution in step 1060,1070,1080,1090 and 1100 to be calibrated.This can constantly repeat, until confirming that in step 1110 all intake manifold injection valves to be calibrated are calibrated.Enter into step 1120 in this case, method is along with this step finishes.
In suction tude λ measurement procedure 1060, fuel is ejected among the first cylinder 10a with the distribution ratio that limits through the straight spray valve 110a and the first intake manifold injection valve 150a.Can for example select this distribution ratio like this, that is, fuel only sprays through the first intake manifold injection valve 150a, does not have fuel to spray via straight spray valve 110a.For example also can select this distribution ratio like this, that is, 50% fuel sprays via the first intake manifold injection valve 150a, and 50% fuel then sprays via straight spray valve 110a.Also can consider other distribution ratio arbitrarily.Especially during implementing said method, what be beneficial to the internal combustion engine operation stationarity is, the fuel more than 80% sprays via straight spray valve 110a and correspondingly is less than 20% fuel and then sprays via the first intake manifold injection valve 150a.Otherwise what be beneficial to a kind of method especially reliably is, the fuel more than 80% sprays via the first intake manifold injection valve 150a, correspondingly is less than 20% fuel then via straight spray valve 110a injection.Fuel only is ejected in all other cylinders of exhaust place A via the straight spray valve 110b, 110c, the 110d that had calibrated already.The exhaust gas oxygensensor 130a of the first exhaust place A obtains intake manifold injection λ signal.Carry out λ comparison step 1070 then.
In step 1070, the value and the value that is stored in the intake manifold injection λ signal in the controller 70 of the direct injection λ signal of the first exhaust place A contrasted, and obtain a difference of these two values.If this difference is less than the detected value in direct injection λ measurement procedure 1050 by exhaust gas oxygensensor 130a by exhaust gas oxygensensor 130a detected value in suction tude λ measurement procedure 1060 so greater than zero.Can infer thus, in suction tude λ measurement procedure 1060 than in direct injection λ measurement procedure 1050, spraying more fuel.Because in direct injection λ measurement procedure 1050, fuel only sprays through the injection valve after the calibration, therefore can infer, in suction tude λ measurement procedure 1060, has sprayed too much fuel.Because remove the first intake manifold injection valve 150a, only the injection valve through calibration sprays in suction tude λ measurement procedure 1060, therefore can derive, and the first intake manifold injection valve 150a has sprayed too much fuel.Otherwise, if this difference can infer so that less than zero the first suction tude 150a burner oil is very few.
Also can from the absolute value of this difference, derive with known manner, the first intake manifold injection valve 150a sprays too much or very few mistake amount of fuel injected what is.
Then spray and revise step 1080.In step 1080, in controller 70, change triggering like this to the first intake manifold injection valve 150a, make the value of the mistake amount of fuel injected of in step 1070, obtaining obtain revising.This for example can regulate algorithm (for example pi regulator) through cybernetics and carry out.In this case, turn back to step 1060 from step 1080 fork, no matter and how many times repeating step 1060,1070,1080, till the difference of in step 1070, obtaining equals zero.At this, with known manner check, but the difference of in step 1070, obtaining whether less than a predetermined threshold value, wherein, but this predetermined threshold value is especially definite by the minimum dose precision of the measurement result of exhaust gas oxygensensor 130 and intake manifold injection valve 150.
But for example also can miss the correction of amount of fuel injected through indicatrix, from the mistake amount of fuel injected, calculate, how come to change the trigger signal of the first intake manifold injection valve 150a with these indicatrixes.This correction for example also can combine with above-mentioned cybernatic adjusting algorithm.
Get into step 1090 subsequently.In step 1090-in case of necessity through with the change of the trigger signal of the first intake manifold injection valve 150a of step 1060 and 1070 iteration-obtain, the correction value that can be used as the trigger signal of the first intake manifold injection valve 150a is stored in the controller 70.Then get into step 1100.
In step 1100; The adaptation value of can be optionally the correction value of the trigger signal of the first intake manifold injection valve 150a that in step 1090, calculates be can be regarded as the cylinder balance function is especially when the alignment purpose of the first intake manifold injection valve 150a is among balance cylinder 10a, 10b, 10c, 10d, 10e, 10f, 10g, the 10h at least two torque contribution.Get into step 1110 subsequently.
Check in step 1110, whether all intake manifold injection valves to be calibrated are calibrated.If not, then select next one intake manifold injection valve to be calibrated and fork and turn back to step 1060.If all intake manifold injection valves to be calibrated are calibrated, in step 1120, finish said method so.
In the embodiment shown, set a straight spray valve 110a, 110b, 110c, 110d, 110e, 110f, 110g, 110h just for each cylinder 10a, 10b, 10c, 10d, 10e, 10f, 10g, 10h.Equally, also can set straight spray valve for one or more cylinder 10a, 10b, 10c, 10d, 10e, 10f, 10g, 10h more than one.Whether in this case, in to the step 1030 of one or more cylinders that has a plurality of straight spray valves, what replace the straight spray of calibration valve is, check all to attach troops to a unit and be calibrated in total emitted dose of the straight spray valve of associated cylinder.But also can check, whether each directly sprays valve is all calibrated one by one.
Equally in an illustrated embodiment, set an intake manifold injection valve 150a, 150b, 150c, 150d, 150e, 150f, 150g, 150h just for each cylinder 10a, 10b, 10c, 10d, 10e, 10f, 10g, 10h.But it is not set the intake manifold injection valve that some cylinders also can be arranged.Can be that existing intake manifold injection valve is implemented by calibration steps of the present invention with the mode similar with embodiment.
Can set a plurality of intake manifold injection valves for a cylinder equally.In this case, can attach troops to a unit in total emitted dose of the intake manifold injection valve of associated cylinder with calibrate all by method of the present invention.If fuel only via an injection of a plurality of intake manifold injection valves, can be calibrated the intake manifold injection valve so one by one.
Feasible in addition is that in step 1060, fuel also is ejected among cylinder 10b, 10c and the 10d via one or more intake manifold injection valve 150b, 150c, 150d, as long as relevant intake manifold injection valve is calibrated.
Claims (15)
1. be used to calibrate the method for emitted dose of at least one first intake manifold injection valve (150a) of first cylinder (10a) of first exhaust place (A) of internal-combustion engine; Wherein, First cylinder (10a) has at least one first straight spray valve (110a) and at least one first intake manifold injection valve (150a), and this method comprises the following steps:
-direct injection λ measurement procedure (1050), in this step, fuel only is directly injected in first cylinder (10a), and obtains the direct injection λ signal of first cylinder (10a),
-suction tude λ measurement procedure (1060); In this step; Fuel is ejected in first cylinder (10a) with the distribution ratio that can be scheduled between the first intake manifold injection valve (110a) and the first straight spray valve (150a), and obtains the intake manifold injection λ signal of first cylinder (10a)
-λ comparison step (1070) in this step, contrasts the value of direct injection λ signal and the value of intake manifold injection λ signal.
2. by the described method of claim 1, it is characterized in that this method comprises the following steps:
-direct injection calibration steps (1040), in this step, the first straight spray valve (110a) of at least the first cylinder (10a) is calibrated.
3. by the described method of claim 2; It is characterized in that; In direct injection calibration steps (1040), the equilibrium of the torque contribution through first cylinder (10a) and the cylinder that at least one is other realizes the calibration of the straight spray valve (110a) of first cylinder (10a).
4. by the described method of claim 3, it is characterized in that, in direct injection calibration steps (1040), carry out equilibrium the torque contribution of the straight spray valve (110) of all cylinders (10).
5. by one of aforementioned claim described method, it is characterized in that in suction tude λ measurement procedure (1060), fuel only is ejected in all cylinders (10) except that first cylinder (10a) of first exhaust place via the injection valve that obtained already calibrating.
6. by the described method of claim 5, it is characterized in that in suction tude λ measurement procedure (1060), fuel only directly is injected in all cylinders (10) except that first cylinder (10a) of first exhaust place.
7. by one of aforementioned claim described method, it is characterized in that this method comprises the following steps:
-spray and revise step (1080), in this step, change the emitted dose of the first intake manifold injection valve (150a) according to the result of λ comparison step (1070).
8. by the described method of claim 7, it is characterized in that, revise in the step (1080) spraying,, improve the emitted dose of the first intake manifold injection valve (150a) when the value of intake manifold injection λ signal during greater than the value of direct injection λ signal.
9. by claim 7 or 8 described methods, it is characterized in that, revise in the step (1080) spraying,, reduce the emitted dose of the first intake manifold injection valve (150a) when the value of intake manifold injection λ signal during less than the value of direct injection λ signal.
10. by the described method of one of claim 7 to 9, it is characterized in that, repeat to spray that to revise step (1080) like this, up to the deviation of the value of intake manifold injection λ signal and the value of direct injection λ signal less than the ability predetermined threshold value.
11., it is characterized in that the distribution ratio that selection like this can be scheduled to is so that fuel only sprays via the intake manifold injection valve by one of aforementioned claim described method.
12. by the described method of one of aforementioned claim, it is characterized in that, at least two especially be whole these methods of intake manifold injection valves enforcement.
13. computer program is characterized in that, this computer program is in order to be applied in by being programmed in the described method of one of claim 1 to 12.
14. be used for the control of internal-combustion engine and/or the electric storage medium of controlling device, it is characterized in that the computer program that is used for being applied in by the described method of one of claim 1 to 12 is stored in this electricity storage medium.
15. the control of internal-combustion engine and/or controlling device is characterized in that, this device control and/or controlling device are in order to be applied in by being programmed in the described method of one of claim 1 to 12.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102010038625.1A DE102010038625B4 (en) | 2010-07-29 | 2010-07-29 | Method and device for controlling an internal combustion engine |
| DE102010038625.1 | 2010-07-29 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102345526A true CN102345526A (en) | 2012-02-08 |
| CN102345526B CN102345526B (en) | 2016-12-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110213212.4A Active CN102345526B (en) | 2010-07-29 | 2011-07-28 | For the method controlling internal combustion engine |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP6049241B2 (en) |
| CN (1) | CN102345526B (en) |
| DE (1) | DE102010038625B4 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106968822A (en) * | 2015-11-25 | 2017-07-21 | 罗伯特·博世有限公司 | Method for running internal combustion engine |
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| DE102012204332B4 (en) * | 2012-03-19 | 2014-11-06 | Continental Automotive Gmbh | Device for operating an internal combustion engine |
| DE102012211754A1 (en) | 2012-07-05 | 2014-01-09 | Robert Bosch Gmbh | Method for operating combustion engine, involves injecting fuel into chamber using injector, where difference between nominal- and actual lambda values enables determining fuel quantity injected by injector during control duration |
| DE102013005678B3 (en) * | 2013-04-03 | 2014-08-28 | Audi Ag | Method of operating internal combustion engine involves determining query to determine whether lambda for suspect cylinder is higher than lambda absolute threshold when cylinder suspected error is determined |
| US9334824B2 (en) | 2014-02-27 | 2016-05-10 | Ford Global Technologies, Llc | Method and system for characterizing a port fuel injector |
| DE102015213894A1 (en) | 2015-07-23 | 2017-01-26 | Robert Bosch Gmbh | Method for introducing fuel into a combustion chamber of an internal combustion engine with intake manifold injection and direct injection |
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| CN106968822B (en) * | 2015-11-25 | 2021-02-02 | 罗伯特·博世有限公司 | Method for operating an internal combustion engine |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102010038625B4 (en) | 2017-07-06 |
| JP6049241B2 (en) | 2016-12-21 |
| DE102010038625A1 (en) | 2012-02-02 |
| JP2012031859A (en) | 2012-02-16 |
| CN102345526B (en) | 2016-12-07 |
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