CN102046946A - Method and system for balancing the cylinders of a diesel engine - Google Patents
Method and system for balancing the cylinders of a diesel engine Download PDFInfo
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- CN102046946A CN102046946A CN2009801195818A CN200980119581A CN102046946A CN 102046946 A CN102046946 A CN 102046946A CN 2009801195818 A CN2009801195818 A CN 2009801195818A CN 200980119581 A CN200980119581 A CN 200980119581A CN 102046946 A CN102046946 A CN 102046946A
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- cylinder
- delivery temperature
- endurance
- fuel
- torsional vibration
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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
- F02D35/00—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for
- F02D35/02—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for on interior conditions
- F02D35/028—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for on interior conditions by determining the combustion timing or phasing
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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
- F02D41/1439—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the position of the sensor
- F02D41/1441—Plural sensors
- F02D41/1443—Plural sensors with one sensor per cylinder or group of cylinders
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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
- F02D41/1446—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 exhaust temperatures
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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
- F02D35/00—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for
- F02D35/02—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for on interior conditions
- F02D35/021—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for on interior conditions using an ionic current sensor
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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
- F02D35/00—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for
- F02D35/02—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for on interior conditions
- F02D35/023—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for on interior conditions by determining the cylinder pressure
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
Abstract
A method of balancing the cylinders (3) of a diesel engine (2), in which method the starting moment of the combustion process in each cylinder (3) is defined and the defined starting moment of the combustion process is compared to a specific set value. The starting moment of fuel injection into the cylinders (3) is changed, if the defined starting moment of the combustion process differs from the set value. In addition, the exhaust gas temperature of each cylinder is measured and the duration of fuel injection into the cylinders (3) is changed on the basis of the exhaust gas temperatures in order to equalise the outputs produced by the cylinders.
Description
Technical field
The present invention relates to a kind of method of balance cylinder of diesel engine.The invention still further relates to a kind of system that is used for the balance cylinder of diesel engine.
Background technique
In piston engine, there are differences aspect the power generation between the difference cylinder of motor.This difference for example is that the parts depreciation owing to ejecting system causes in their life time the variation in their running.Difference in the cylinder output can have a negative impact to engine running, for example, increased the load on crank and other parts, and the vibration of motor can increase also.Therefore, attempt between cylinder, to keep balance, that is, between cylinder, make combustion process similarity as much as possible.The problem relevant with the output difference between the cylinder appears in the diesel engine with shared pressure suppling system more commonly, uses heavy oil to act as a fuel in this diesel engine.
Summary of the invention
The improved solution that the purpose of this invention is to provide the cylinder load in a kind of balance diesel engine.
Purpose of the present invention is main as realizing disclosed in claims 1 and 11.In the present invention, define the initial moment of the combustion process in each cylinder, and initial moment of the qualification of described combustion process and specific setting value are compared.If the initial moment of the qualification of described combustion process is different with described setting value, then change the initial moment that fuel sprays.In addition, measure the delivery temperature of each cylinder, and change the output that endurance of injecting fuel in the described cylinder is produced by described cylinder with equilibrium based on described delivery temperature.
This present invention has obtained considerable advantage.Initial moment by regulating combustion process individually and inject fuel into endurance in each cylinder, the output difference between will balance cylinder.The output difference that causes owing to the parts depreciation of ejecting system between the cylinder can be compensated, thereby keeps perfect condition in the whole life time that operates at part of cylinder.In addition, owing to dissimilar fuel or change the load variations that causes with a kind of quality of fuel and can be compensated, so these load variations have as far as possible little influence to engine running.This system also can be applied to the maintenance to the parts such as for example sparger of fuel injection system.The control unit of this system can be configured to monitor the variation of the setting value of component, and thus, if this setting value has surpassed the limiting value that expression needs are replaced these component, then this control unit is notified about changing the needs of these component.In addition, owing to needn't therefore in this ejecting system, can use the sparger of less expensive for each shared pressure suppling system provides independent sparger adjusted value.
Embodiment
Explain the present invention in more detail in the mode of example below with reference to accompanying drawings, accompanying drawing schematically illustration according to a system of the present invention.
Accompanying drawing has been described the example according to the system 1 for balance cylinder of diesel engine 3 of the present invention. This system 1 is configured to combine with piston-mode motor 2. Engine 2 is large-scale diesel engines, and it is for example as sustainer and assistant engine in boats and ships or the power plant. This engine 2 has for the shared pressure suppling system 4 that supplies fuel to cylinder 3. For example, heavy oil is used as the fuel in the engine 2. Control spraying system 4 in the mode of electricity.
This motor comprises several cylinders 3, and wherein each cylinder all has the sparger 5 of the firing chamber that is used for injecting fuel into cylinder.This supply system comprises the common rail 9 that is used for pressurized fuel.Sparger 5 is connected to common rail 9.Fuel system 4 comprises fuel source 6 (for example, fuel tank) and is used for fuel is fed to from fuel source 6 low pressure pump 11 and the high-pressure service pump 12 of common rail 9.Each sparger 5 all passes through fuel channel 10 rail 9 mobile connections together.
When motor 2 operation, fuel 6 is pumped into high-pressure service pump 12 by low pressure pump 11 along supply passage 13 from fuel tank, and then is pumped in the common rail 9 via supply passage 13 by high-pressure service pump 12.Fuel is directed to sparger 5 from being total to rail 9.In the moment of expectation, the injected device 5 of fuel is ejected in the cylinder 3.
Motor comprises system 1, comes balance cylinder 3 by system 1, that is, keep combustion process similar as much as possible between cylinder 3.System 1 comprises the control control unit 14 that 3 fuel sprays from sparger 5 to cylinder.Control unit 14 defines the initial moment that injects fuel in each cylinder.Control unit 14 is adjusted the initial moment that fuel sprays.In addition, the endurance of control unit 14 control fuel injections.
In based on method to the position measurement of cylinder pressure, cylinder pressure in each cylinder 3 is measured by the measuring device 15 that is suitable for, measuring device 15 for example is pressure transducer, KS (acceleration transducer) or resistance strain gauge, and itself and cylinder 3 are provided with in combination.Can also utilize ionization measurement to measure cylinder pressure.Be transferred to control unit 14 to cylinder pressure with to the survey data of crank angle of swing.Control unit 14 limits the initial moment of the combustion process in each cylinder 3 based on the survey data to cylinder pressure and crank angle of swing.In case the cylinder pressure of measuring reaches the numerical value that shows that the combustion process in the cylinder 3 has begun, then will limit corresponding degree in crank angle.The beginning of combustion process is represented by the variation of the coefficient of angularity that for example takes place in cylinder pressure increase curve.The initial moment of combustion process also can limit by measuring maximum cylinder pressure.
When limiting initial moment of combustion process when measuring based on torsional vibration, this system includes the measuring device of the torsional vibration that is used to measure crank.The angle transducer 16 that can use the angle of swing of measuring crank receives about the magnitude of torsional vibration and the survey data of the angle of swing that this torsional vibration takes place by this as this measuring device.This survey data is sent to control unit 14.On the basis of this survey data, control unit 14 limits the initial moment of the combustion process in each cylinder 3.
In case define the initial moment of combustion process, then control unit 14 compares initial moment of the qualification of combustion process and specific setting value.This setting value can for example pre-determine with the pressure that is total to rail 9 based on engine load.If the initial moment of the qualification of combustion process is different from this setting value, then control unit 14 changes the initial moment that fuel sprays at each cylinder individually.The initial moment that fuel sprays is changed and becomes to make initial moment of combustion process near this setting value.Because the initial moment that fuel sprays is quite accurately consistent with the initial moment of combustion process, therefore the initial time changing that fuel can be sprayed be that setting value with initial moment of combustion process is identical.
In addition, for the output that balance cylinder produces, control unit 14 changes the endurance that injects fuel in the cylinder 3.Change the endurance that fuel sprays at each cylinder individually.In case the initial moment to the fuel injection is made above-mentioned adjustment, then changes the endurance that fuel sprays, that is, the initial moment that fuel sprays is as desired.Can change the endurance that injects fuel in the cylinder, make the output equilibrium that each cylinder 3 produces.Can change the endurance that fuel sprays based on the delivery temperature of cylinder 3 or based on measurement to the torsional vibration of crank.
If adjusted the endurance that fuel sprays based on delivery temperature, then system 1 comprises the temperature transducer related with each cylinder 18 of the delivery temperature that is used to measure cylinder.Temperature transducer 18 is installed on the outlet pipe 19 of cylinder.The survey data of temperature transducer 18 is sent to control unit 14.Control unit 14 changes the endurance that fuel sprays based on the delivery temperature that records.The endurance that changes the fuel injection is so that the output that balance cylinder 3 produces.Control unit 14 can change the endurance that fuel sprays, and makes delivery temperature equilibrium in each cylinder 3.The delivery temperature and the setting value that record are compared.If the delivery temperature measured value of a cylinder is different from this setting value in the cylinder 3, then change the endurance that injects fuel in the described cylinder, make its delivery temperature be in its setting value.Can use the mean value of the delivery temperature that records or the predetermined value setting value as delivery temperature, the size of this setting value can depend on for example load or the employed fuel of motor.If delivery temperature is too low, then prolong the endurance that fuel sprays.Similarly, if delivery temperature is too high, then shorten the endurance that fuel sprays.
If based on the measurement of the torsional vibration of crank is limited the endurance that fuel sprays, then system comprises the measuring device of the torsional vibration that is used to measure crank.The angle transducer 16 of measuring the angle of swing of crank can be used as this measuring device, receives the survey data about the angle of swing of the magnitude of torsional vibration and the vibration that twists by this at one time.This survey data is sent to control unit 14.Control unit 14 changes the endurance that injects fuel in each cylinder individually, makes the torsional vibration of crank is reduced to minimum.
The endurance that fuel sprays can utilize above two kinds of methods (that is, based on the delivery temperature of cylinder with based on the torsional vibration of crank) to change.Then, measure or at first utilize measurements (for example, the measurement of delivery temperature) and another is measured as the backup measurement, can adjust the endurance of fuel injection by utilizing these two simultaneously.When needs, for example when main measurement is unsuccessful, can use this another measurement.
The present invention is not limited in shown mode of execution, on the contrary, can expect some kinds of modification within the scope of the appended claims.The initial moment of combustion process can limit by the electric current in the solenoid valve of measuring sparger 5 or by measuring fueling injection pressure.Fueling injection pressure can be by being arranged in the common rail 9 or pressure switch or pressure transducer in the fuel channel 10 of sparger are measured.
For example, according to a mode of execution, based on delivery temperature with and change the output that endurance of injecting fuel in the cylinder 3 is produced by cylinder with equilibrium based on torsional vibration.In this way, as long as consider the endurance of injection, just can further improve the validity of adjustment.
In addition, this method comprises such stage, that is, the correctness of measurement of assessment delivery temperature, and if the delivery temperature of cylinder measure wrongly, then determine the variation of the endurance of fuel injection based on torsional vibration.The wrong situation of the measurement of this delivery temperature for example is that the sensor of measuring delivery temperature breaks down or the delivery temperature 18 of cylinder departs from too big situation with respect to preset temperature value or for the mean value of the delivery temperature of cylinder.This provides following advantage: can identify the error condition of influence to the sensor of the adjustment of the endurance of injection, and motor might not quit work.In this case, surpass 50% if the delivery temperature of cylinder 18 departs from respect to preset temperature value or for the mean value of delivery temperature, a kind of mode that then limits the variation that injects fuel into the endurance in the cylinder 3 is based on torsional vibration.For example, can be the specific load that in adjust system, writes down and the reference value of speed at the predetermined temperature value of specific load.Surpass 10% if the delivery temperature of cylinder 18 departs from respect to preset temperature value or for the mean value of delivery temperature, the another kind of mode that then limits the variation that injects fuel into the endurance in the cylinder 3 is based on torsional vibration.This provides following advantage: can change the definite method that has influence on the adjustment of endurance of spraying immediately, thereby a kind of definite method that can select mainly the to be used method of delivery temperature (in the case, based on).These two kinds of ways can be by changing system the function of control unit 14 realize.
Claims (22)
1. the method for the cylinder (3) of a balance diesel engine (2) is characterized in that,
Limit the initial moment of the combustion process in each cylinder (3),
The initial moment of the qualification of described combustion process is compared with particular set value,
If the initial moment of the qualification of described combustion process is different from described setting value, then change the initial moment that injects fuel in the described cylinder (3),
Measure the delivery temperature of each cylinder (18), and
Change the endurance that injects fuel in the described cylinder (3) based on delivery temperature, with the output of equilibrium by described cylinder (3) generation.
2. method according to claim 1 is characterized in that, if described delivery temperature is too low, then prolongs the endurance that the fuel related with cylinder sprays, if described delivery temperature is too high, then shortens the endurance that the fuel related with cylinder sprays.
3. method according to claim 1 and 2 is characterized in that, changes the endurance that injects fuel in the described cylinder (3), the feasible delivery temperature that reaches expectation.
4. method according to claim 3 is characterized in that, the mean value or the predetermined value of the delivery temperature that records are used as setting value.
5. according to each described method in the aforementioned claim, it is characterized in that, measure the torsional vibration of engine crank, and change the endurance that injects fuel in the described cylinder (3), with the output of equilibrium by described cylinder generation based on torsional vibration.
6. method according to claim 5 is characterized in that, changes the endurance that injects fuel in the described cylinder (3) based on delivery temperature and torsional vibration.
7. method according to claim 5, it is characterized in that, this method also comprised as the next stage: assessment is to the correctness of the measurement of delivery temperature (18), if and wrong to the measurement of the described delivery temperature (18) of described cylinder, then determine to inject fuel into the variation of the endurance in the described cylinder (3) based on torsional vibration.
8. according to claim 5 or 7 described methods, it is characterized in that, if the described delivery temperature (18) of described cylinder departs from preset temperature value or departs from the mean value of the described delivery temperature of described cylinder (3), then limit the variation that injects fuel into the endurance in the described cylinder (3) based on torsional vibration.
9. according to each described method in the aforementioned claim, it is characterized in that, measure the position (15,16) of the cylinder pressure in each cylinder (3), and limit the initial moment of described combustion process based on the described position measurement of described cylinder pressure.
10. method according to claim 8 is characterized in that, described cylinder pressure is measured by KS, resistance strain gauge or the pressure transducer (15) that are provided with in combination with described cylinder (3).
11., it is characterized in that, measure the described torsional vibration of described engine crank, and limit the initial moment of described combustion process based on described torsional vibration measurement according to each described method in the aforementioned claim.
12. the system (1) of the cylinder of a balance diesel engine (2), this system comprises and will combine the temperature transducer (18) of delivery temperature that is used to measure described cylinder of installation with each cylinder (3), it is characterized in that, described system (1) comprises control unit (14), and described control unit (14) is configured to carry out following operation:
Limit the initial moment of the combustion process in each cylinder (3),
The initial moment of the qualification of described combustion process is compared with setting value,
If the initial moment of the qualification of described combustion process is different from described setting value, then change the initial moment that injects fuel in the described cylinder (3), and
Change the endurance that injects fuel in the described cylinder (3) based on measurement, with the output of equilibrium by described cylinder generation to delivery temperature.
13. system according to claim 12, it is characterized in that, described control unit is provided in described delivery temperature and prolongs the endurance that the fuel related with cylinder sprays when too low, and shortens the endurance of the fuel injection related with cylinder when described delivery temperature is too high.
14., it is characterized in that described control unit (14) is configured to change the endurance that fuel sprays according to each described system in the aforementioned claim, the feasible desired set value that reaches the described delivery temperature of described cylinder (3).
15. system according to claim 14 is characterized in that, described desired set value is the mean value or the predetermined value of described delivery temperature.
16. according to each described system in the claim 12 to 15, it is characterized in that, described system comprises the device (16) of the torsional vibration that is used to measure crank, and described control unit (14) is configured to change the endurance that injects fuel in the described cylinder (3) based on torsional vibration, with the output of equilibrium by described cylinder (3) generation.
17. according to each described system in the claim 12 to 16, it is characterized in that, described system comprises the device (16) of the torsional vibration that is used to measure described crank, and described control unit (14) is configured to change the endurance that injects fuel in the described cylinder (3) based on described delivery temperature and described torsional vibration.
18. system according to claim 16, it is characterized in that, this system also comprises the device of the correctness of the described measurement of assessing described delivery temperature (18), if and the measurement of the described delivery temperature (18) of described cylinder (3) is wrong, then limits the variation that injects fuel into the endurance in the described cylinder (3) based on torsional vibration.
19. system according to claim 18, it is characterized in that the described delivery temperature (18) that described control unit (14) is provided in described cylinder departs from preset temperature value or departs under the situation of mean value of described delivery temperature of described cylinder (3) and changes the endurance that injects fuel in the described cylinder (3) based on torsional vibration.
20. according to each described system in the claim 12 to 19, it is characterized in that, described system (1) comprises the device (15 of the position of the cylinder pressure that is used for measuring each cylinder (3), 16), and described control unit (14) be configured to limit initial moment of the described combustion process in the described cylinder (3) based on described position measurement to described cylinder pressure.
21. system according to claim 20 is characterized in that, the described device that is used to measure the position of described cylinder pressure comprises KS, resistance strain gauge or the pressure transducer (15) that is provided with in combination with described cylinder.
22., it is characterized in that the described measuring device that is used to measure the position of described cylinder pressure comprises the angle transducer (16) of the angle of swing of measuring described engine crank according to claim 20 or 21 described systems.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FI20085496A FI122489B (en) | 2008-05-26 | 2008-05-26 | Method and apparatus for stabilizing the diesel engine cylinders |
| FI20085496 | 2008-05-26 | ||
| PCT/FI2009/050436 WO2009144374A1 (en) | 2008-05-26 | 2009-05-26 | Method and system for balancing the cylinders of a diesel engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102046946A true CN102046946A (en) | 2011-05-04 |
| CN102046946B CN102046946B (en) | 2016-03-09 |
Family
ID=39523147
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009801195822A Pending CN102046949A (en) | 2008-05-26 | 2009-05-26 | Method and system for balancing the cylinders of a diesel engine |
| CN200980119581.8A Active CN102046946B (en) | 2008-05-26 | 2009-05-26 | For balancing the method and system of cylinder of diesel engine |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009801195822A Pending CN102046949A (en) | 2008-05-26 | 2009-05-26 | Method and system for balancing the cylinders of a diesel engine |
Country Status (6)
| Country | Link |
|---|---|
| EP (2) | EP2310654B1 (en) |
| KR (3) | KR101516039B1 (en) |
| CN (2) | CN102046949A (en) |
| FI (2) | FI122489B (en) |
| RU (1) | RU2494270C2 (en) |
| WO (2) | WO2009144374A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109306914A (en) * | 2018-09-26 | 2019-02-05 | 潍柴动力股份有限公司 | A kind of large bore engine control method and device |
| CN112943464A (en) * | 2021-03-26 | 2021-06-11 | 武汉理工大学 | Compensation method and device for non-uniformity of cylinder work |
| CN112943467A (en) * | 2021-02-05 | 2021-06-11 | 潍柴动力股份有限公司 | Injection correction method and system for engine exhaust temperature consistency and storage medium |
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| CN113153557B (en) * | 2011-10-05 | 2023-01-03 | 工程推进系统有限公司 | Control system and method for aero compression combustion drive assembly |
| GB2504655A (en) * | 2012-06-11 | 2014-02-12 | Cosworth Ltd | Controllable fuel injection system for a two-stroke, compression ignition, engine |
| US10288031B2 (en) * | 2013-11-14 | 2019-05-14 | Toyota Jidosha Kabushiki Kaisha | Controller for internal combustion engine |
| US9890728B2 (en) * | 2015-08-21 | 2018-02-13 | Ford Global Technologies, Llc | Engine operating system and method |
| US9822727B2 (en) | 2015-10-29 | 2017-11-21 | General Electric Company | Method and systems for adjusting engine cylinder operation based on a knock sensor output |
| US11428157B2 (en) | 2017-07-21 | 2022-08-30 | General Atomics Aeronautical Systems, Inc. | Enhanced aero diesel engine |
| DE102020200222B4 (en) * | 2020-01-09 | 2022-04-28 | Mtu Friedrichshafen Gmbh | Method for controlling an internal combustion engine and internal combustion engine |
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| JP3004307B2 (en) * | 1990-03-23 | 2000-01-31 | 三菱重工業株式会社 | Diesel engine crankshaft torsional vibration suppressor |
| US6000384A (en) * | 1998-03-06 | 1999-12-14 | Caterpillar Inc. | Method for balancing the air/fuel ratio to each cylinder of an engine |
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| DE10038340A1 (en) * | 2000-08-05 | 2002-02-14 | Bosch Gmbh Robert | Method and device for controlling an internal combustion engine |
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| JP4716283B2 (en) * | 2006-02-08 | 2011-07-06 | 本田技研工業株式会社 | Air-fuel ratio control device for internal combustion engine |
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2008
- 2008-05-26 FI FI20085496A patent/FI122489B/en active
-
2009
- 2009-05-26 WO PCT/FI2009/050436 patent/WO2009144374A1/en active Application Filing
- 2009-05-26 KR KR1020107026999A patent/KR101516039B1/en active IP Right Grant
- 2009-05-26 RU RU2010153310/06A patent/RU2494270C2/en active
- 2009-05-26 EP EP09754027.2A patent/EP2310654B1/en active Active
- 2009-05-26 CN CN2009801195822A patent/CN102046949A/en active Pending
- 2009-05-26 KR KR1020107026998A patent/KR101770430B1/en active IP Right Grant
- 2009-05-26 FI FI20095576A patent/FI122491B/en active
- 2009-05-26 CN CN200980119581.8A patent/CN102046946B/en active Active
- 2009-05-26 WO PCT/FI2009/050437 patent/WO2009144375A1/en active Application Filing
- 2009-05-26 KR KR1020157030853A patent/KR20150129044A/en not_active Application Discontinuation
- 2009-05-26 EP EP09754028.0A patent/EP2310655B1/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109306914A (en) * | 2018-09-26 | 2019-02-05 | 潍柴动力股份有限公司 | A kind of large bore engine control method and device |
| CN109306914B (en) * | 2018-09-26 | 2022-06-28 | 潍柴动力股份有限公司 | Large-cylinder-diameter engine control method and device |
| CN112943467A (en) * | 2021-02-05 | 2021-06-11 | 潍柴动力股份有限公司 | Injection correction method and system for engine exhaust temperature consistency and storage medium |
| CN112943464A (en) * | 2021-03-26 | 2021-06-11 | 武汉理工大学 | Compensation method and device for non-uniformity of cylinder work |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20150129044A (en) | 2015-11-18 |
| WO2009144375A1 (en) | 2009-12-03 |
| RU2494270C2 (en) | 2013-09-27 |
| EP2310654A1 (en) | 2011-04-20 |
| KR20110031154A (en) | 2011-03-24 |
| FI20095576A0 (en) | 2009-05-26 |
| KR101770430B1 (en) | 2017-09-05 |
| FI20095576A (en) | 2009-11-27 |
| CN102046949A (en) | 2011-05-04 |
| EP2310655A1 (en) | 2011-04-20 |
| EP2310655B1 (en) | 2016-04-06 |
| KR101516039B1 (en) | 2015-05-04 |
| FI20085496A0 (en) | 2008-05-26 |
| CN102046946B (en) | 2016-03-09 |
| FI20085496A (en) | 2009-11-27 |
| FI122489B (en) | 2012-02-15 |
| EP2310654B1 (en) | 2019-08-28 |
| WO2009144374A1 (en) | 2009-12-03 |
| KR20110021833A (en) | 2011-03-04 |
| RU2010153310A (en) | 2012-07-10 |
| FI122491B (en) | 2012-02-15 |
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