WO2004090310A1 - Verfahren zur drehzahl-regelung - Google Patents
Verfahren zur drehzahl-regelung Download PDFInfo
- Publication number
- WO2004090310A1 WO2004090310A1 PCT/EP2004/003620 EP2004003620W WO2004090310A1 WO 2004090310 A1 WO2004090310 A1 WO 2004090310A1 EP 2004003620 W EP2004003620 W EP 2004003620W WO 2004090310 A1 WO2004090310 A1 WO 2004090310A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- speed
- time
- ramp
- speed control
- ist
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/02—Circuit arrangements for generating control signals
- F02D41/04—Introducing corrections for particular operating conditions
- F02D41/06—Introducing corrections for particular operating conditions for engine starting or warming up
- F02D41/062—Introducing corrections for particular operating conditions for engine starting or warming up for starting
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D29/00—Controlling engines, such controlling being peculiar to the devices driven thereby, the devices being other than parts or accessories essential to engine operation, e.g. controlling of engines by signals external thereto
- F02D29/06—Controlling engines, such controlling being peculiar to the devices driven thereby, the devices being other than parts or accessories essential to engine operation, e.g. controlling of engines by signals external thereto peculiar to engines driving electric generators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D31/00—Use of speed-sensing governors to control combustion engines, not otherwise provided for
- F02D31/001—Electric control of rotation speed
- F02D31/007—Electric control of rotation speed controlling fuel supply
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B2275/00—Other engines, components or details, not provided for in other groups of this subclass
- F02B2275/14—Direct injection into combustion chamber
-
- 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
- F02D41/1401—Introducing closed-loop corrections characterised by the control or regulation method
- F02D2041/1413—Controller structures or design
- F02D2041/1422—Variable gain or coefficients
-
- 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
- F02D41/1497—With detection of the mechanical response of the engine
- F02D41/1498—With detection of the mechanical response of the engine measuring engine roughness
Definitions
- the invention relates to a method for speed control of an internal combustion engine generator unit according to the preamble of claim 1.
- An internal combustion engine provided as a generator drive is usually delivered by the manufacturer to the end customer without a clutch and generator.
- the coupling and the generator are only assembled at the end customer.
- the internal combustion engine is operated in a speed control loop.
- the speed of the crankshaft is recorded as a controlled variable and compared with a target speed, the reference variable.
- the resulting control deviation is converted via a speed controller into a manipulated variable for the internal combustion engine, for example a target injection quantity.
- the electronic control unit Since the manufacturer often does not have any secured data about the coupling properties and the generator moment of inertia before delivery of the internal combustion engine, the electronic control unit is supplied with a robust controller parameter set, the so-called standard parameter set.
- a problem with a speed control loop is that torsional vibrations that are superimposed on the controlled variable can be amplified by the speed controller.
- the low-frequency vibrations caused by the internal combustion engine for example the torsional vibrations of the 0.5th and 1st order, are particularly critical.
- the amplitudes of the torsional vibrations can become so large due to the amplification of the speed controller, that a limit speed is exceeded and the internal combustion engine is switched off.
- the problem of instability is countered by a speed filter in the feedback branch of the speed control loop.
- the controller parameters of the speed controller are changed, i.e. the proportional, integral or differential component.
- Such a method for switching the filter and a method for adapting the controller parameters are shown, for example, in the unpublished DE 102 21 681.9. It is problematic that these measures only become effective when the internal combustion engine / generator unit has already become unstable and has been detected.
- a speed ramp or its slope is stored in the standard parameter set mentioned above for the starting process.
- this parameter is set to a large value, e.g. B. 550 revolutions / second.
- this control deviation of the actual speed from the target speed causes a significant increase in the target injection quantity.
- the significant increase in the target injection quantity favors the formation of black smoke.
- the significant increase in the target injection quantity additionally results in a non-optimal determination of the
- the invention is based on the object of improving the starting process of an internal combustion engine generator unit.
- the invention provides that a period of time is determined which the actual rotational speed requires to run through a rotational speed range.
- the speed range is below the start speed, which in practice z. B. is 600 revolutions.
- the speed range is defined by a limit value and the start speed. In practice, the limit value is selected slightly higher than the starter speed, e.g. B. 300 revolutions.
- the run-up ramp and the controller parameters of the speed controller are then selected depending on the measured time period. The characterizing parameters are therefore determined predictively. Corresponding characteristic curves are provided for this.
- the invention has the effect that each engine start takes place with the optimal ramp-up. Changed environmental conditions are taken into account, e.g. B. the cooling water temperature. As is known, a cold internal combustion engine requires a somewhat flatter ramp-up ramp. When the start speed is reached, the optimal controller Parameters determined. The starting speed corresponds in practice to. B. 600 revolutions and characterizes the start of the ramp. The invention ensures stable engine operation already during startup. Instabilities are effectively prevented for the entire operation.
- Fault monitoring is provided to increase the safety of the internal combustion engine generator unit.
- the time period is compared with a limit value. Too large a time period indicates that e.g. B. there is too little fuel pressure in the injection system.
- As a follow-up reaction it is provided that when the error is set, a diagnostic entry is made and an emergency stop is activated.
- Fig. 2 is a block diagram
- Fig. 5 is a block diagram
- FIG. 1 shows a system diagram of the overall system of an internal combustion engine generator unit 1.
- An internal combustion engine 2 drives a generator 4 via a shaft with a transmission element 3.
- the transmission member 3 may include a clutch.
- the fuel is injected via a common rail system. This includes the following components: Pumps 7 with suction throttle to promote the Fuel from a fuel tank 6, a rail 8 for storing the fuel and injectors 10 for injecting the fuel from the rail 8 into the combustion chambers of the internal combustion engine 2.
- the operating mode of the internal combustion engine 2 is regulated by an electronic control unit (EDC) 5.
- the electronic control unit 5 contains the usual components of a microcomputer system, for example a microprocessor, I / O modules, buffers and memory modules (EEPROM, RAM).
- the operating data relevant to the operation of the internal combustion engine 2 are applied in characteristic maps / characteristic curves in the memory modules.
- the electronic control unit 5 uses these to calculate the output variables from the input variables.
- the following input variables are shown by way of example in FIG. 1: an actual rail pressure pCR (IST), which is measured by means of a rail pressure sensor 9, an actual speed signal nM (IST) of the internal combustion engine 2, an input variable E and a signal START start setting.
- the start specification is activated by the operator.
- the input variable E includes, for example, the charge air pressure of a turbocharger and the temperatures of the coolants / lubricants and the fuel.
- the output variable A represents the other control signals for controlling and regulating the
- Internal combustion engine 2 for example the start of injection SB and the injection duration SD.
- FIG 2 is a block diagram for calculating the start of injection SB, the target rail pressure pCR (SW) and the Injection duration SD shown.
- a speed controller 11 calculates a target injection quantity QSW1 from the actual speed nM (IST) of the internal combustion engine and the target speed nM (SW). This is limited to a maximum value via a limit 12.
- the output variable, corresponding to the target injection quantity QSW, represents the input variable of the maps 13 to 15.
- the map 13 calculates the start of injection SB as a function of the target injection quantity QSW and the actual speed nM (IST).
- the target rail pressure pCR (SW) is calculated via the map 14 as a function of the target injection quantity QSW and the actual speed nM (IST).
- the injection duration SD is determined via the characteristic diagram 15 as a function of the target injection quantity QSW and the actual rail pressure pCR (IST).
- the target injection quantity QSW represents a performance-determining signal QP.
- a power-determining signal QP can also be understood to mean a target control rod travel or a target torque.
- FIG. 3 shows the starting process for an internal combustion engine generator unit according to the prior art.
- the time is plotted on the abscissa.
- the speed nM of the internal combustion engine is plotted on the ordinate.
- nM (ISTl) is the starting process with a generator that is a small one Has moment of inertia shown.
- the solid line nM (IST2) shows the starting process for the same internal combustion engine with a generator that has a large moment of inertia.
- the target speed nM (SW) is shown as a dashed line, i.e. the reference variable of the speed control loop.
- the straight line with the points AB corresponds to the run-up ramp HLRI.
- the straight line between points C and D corresponds to the ramp HLR2.
- the slope Phi of both ramp-up ramps is identical, e.g. B. 550 revolutions / second.
- the starter intervenes and the internal combustion engine begins to turn. This initially increases to a starter speed nAN, e.g. B. 120 revolutions.
- a starter speed nAN e.g. B. 120 revolutions.
- fuel is injected into the combustion chambers.
- a first point in time tl is set when the actual speed nM (ISTl) exceeds a limit value GW, e.g. B. 300 revolutions.
- the starter is deactivated so that it disengages. Due to the injection, the actual speed nM (ISTl) increases until it exceeds the start speed nST.
- a second point in time t2 is set.
- the too small slope of the ramp ramp HLRl means that the actual speed nM (ISTl) in the case of a generator with a very small moment of inertia initially overshoots significantly over the ramp, then settles onto the ramp ramp HLRl and runs up to the nominal speed nNN.
- the nominal speed hNN is reached at point B, time t4.
- the actual speed nM (ISTl) swings beyond the target speed nM (SW). It can be derived from the course of the actual speed nM (ISTl) that the internal combustion engine could also be operated with a somewhat steeper ramp up than the ramp up HLRl. This would shorten the ramp-up time corresponding to the period t2 / t4.
- a faster ramp-up ramp is required above all if the internal combustion engine is started without a generator.
- the generator is then only after reaching the nominal speed nNN z. B. coupled by means of a freewheel.
- the fastest possible start-up is desired, since a rotary memory in the case of quick-standby units can only provide energy for a limited time.
- the actual speed runs according to the solid line nM (IST2).
- the run-up ramp HLR2 begins to run, time t3.
- the actual speed nM (IST2) runs below the ramp ramp HLR 2. This leads to a sharp increase in the injection quantity and thus to black smoke formation. In this case, to avoid black smoke formation, it is necessary to use a ramp with a lower gradient.
- FIG. 4 shows a starting process for an internal combustion engine generator unit according to the invention.
- the target speed nM (SW) is shown as a dashed line.
- the course thereof, including the run-up ramps between points AB and CD, is identical to the course of FIG. 3. Further explanation is given in connection with FIG. 5.
- the course of the actual speed nM (ISTl) is identical to the course of FIG. 3 up to time t2. If the actual speed nM (ISTl) exceeds the limit value GW, the first time tl is set. At point A, the actual speed nM (ISTl) exceeds the start speed nST. Time t2 is set. A time span dt is determined from the difference between the two times tl / t2.
- This time period dt is largely determined by the moment of inertia of the generator used.
- a run-up ramp is determined using a characteristic curve 16 (see FIG. 5).
- the characteristic curve 16 is designed in such a way that a short time period dt defines a run-up ramp with a large slope Phil.
- the actual speed nM (IST1) consequently runs along the new run-up ramp HLR3 with the points AE.
- the controller parameters of the speed controller are also selected as a function of the measured time period dt via corresponding characteristic curves 17, 18 (see FIG. 5).
- a reset time TN is assigned to the time period dt via the characteristic curve 17.
- the characteristic curve 17 is designed in such a way that a large reset time TN is assigned to a long period of time dt. Generators with a large moment of inertia require a longer reset time TN than generators with a small moment of inertia.
- a proportional coefficient kp is assigned to the measured time span dt via the characteristic curve 18.
- the characteristic curve 18 is designed in such a way that a large proportional coefficient kp is assigned to a long period of time dt.
- FIG. 6 shows a program flow chart of the invention.
- S1 it is checked whether the actual speed nM (IST) is greater than the limit value GW. If this is not the case, a waiting loop is run through with S2. If the actual speed nM (ACTUAL) has already exceeded the limit value GW, the first time t1 is set at S3. S4 is used to check whether the actual speed nM (ACTUAL) is greater than the starting speed nST. If this is not yet the case, a waiting loop is run through with S5. When the starting speed nST is exceeded, the second point in time t2 is set at S6. The time period dt is then calculated at S7 from the difference between the two times tl / t2.
- an error is queried by checking whether the time period dt is less than a limit value dtGW. If the time period dt is greater than or equal to the permissible limit value dtGW, a diagnostic entry is made at S9 and an emergency stop is triggered. If the query at S8 shows that the time period dt is in the permissible range, the ramp-up ramp HLR, the reset time TN and the proportional coefficient kp are determined in SlO depending on the time period dt. This concludes the program flow chart.
- FIG. 6 shows the waiting loop S5 in more detail with the reference symbols S5a, S5b and S5c.
- a difference dtR is formed at S5a from the current time t to the time t1.
- Query S5b checks whether the difference dtR is less than a limit value dtGW. If this is the case, the process branches to point A.
- the program sequence is then continued with S4 as previously described. If it is determined in S5b that the limit value dtGW is reached or exceeded, a diagnostic entry is made in S5c and an emergency stop is triggered.
- the internal combustion engine carries out every starting process with the optimal ramp-up ramp. This will change
- the optimum speed controller parameters are determined as soon as the starting speed nST is reached. This ensures stable operation even during startup.
- the fuel pre-pressure is displayed by an error message and the internal combustion engine is protected by an emergency stop.
- Coupled generator this is recognized at the start and the associated optimal parameters are determined.
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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
Description
Claims
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US10/552,928 US7207305B2 (en) | 2003-04-08 | 2004-04-06 | Method for engine speed control |
| EP04725901A EP1611333B1 (de) | 2003-04-08 | 2004-04-06 | Verfahren zur drehzahl-regelung |
| DE502004001492T DE502004001492D1 (de) | 2003-04-08 | 2004-04-06 | Verfahren zur drehzahl-regelung |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10315881.2 | 2003-04-08 | ||
| DE10315881A DE10315881B4 (de) | 2003-04-08 | 2003-04-08 | Verfahren zur Drehzahl-Regelung |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2004090310A1 true WO2004090310A1 (de) | 2004-10-21 |
Family
ID=33154105
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2004/003620 Ceased WO2004090310A1 (de) | 2003-04-08 | 2004-04-06 | Verfahren zur drehzahl-regelung |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US7207305B2 (de) |
| EP (1) | EP1611333B1 (de) |
| DE (2) | DE10315881B4 (de) |
| WO (1) | WO2004090310A1 (de) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105888864A (zh) * | 2016-05-25 | 2016-08-24 | 海华电子企业(中国)有限公司 | 一种高压共轨柴油发动机自动电子调速装置及方法 |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102004023993B4 (de) * | 2004-05-14 | 2007-04-12 | Mtu Friedrichshafen Gmbh | Verfahren zur Drehzahl-Regelung einer Brennkraftmaschinen-Generator-Einheit |
| GB2416600B (en) * | 2004-07-23 | 2008-06-04 | Ford Global Tech Llc | System and method for starting a vehicle |
| DE102004037167A1 (de) * | 2004-07-30 | 2006-03-23 | Robert Bosch Gmbh | Vorrichtung und Verfahren zur Steuerung einer Brennkraftmaschine |
| DE102004037129B4 (de) * | 2004-07-30 | 2016-02-11 | Robert Bosch Gmbh | Vorrichtung und Verfahren zur Steuerung einer Brennkraftmaschine bei einem Start |
| DE102005029138B3 (de) * | 2005-06-23 | 2006-12-07 | Mtu Friedrichshafen Gmbh | Steuer- und Regelverfahren für eine Brennkraftmaschine mit einem Common-Railsystem |
| JP4192939B2 (ja) * | 2005-10-21 | 2008-12-10 | トヨタ自動車株式会社 | ハイブリッド動力装置 |
| DE102007037037B3 (de) * | 2007-08-06 | 2009-02-12 | Mtu Friedrichshafen Gmbh | Verfahren zur Regelung einer Brennkraftmaschine |
| US20090323256A1 (en) | 2008-06-25 | 2009-12-31 | Errera Michael R | Interface for system for generating electric power |
| GB2463022B (en) * | 2008-08-28 | 2012-04-11 | Gm Global Tech Operations Inc | A method for correcting the cylinder unbalancing in an internal combustion engine |
| GB2474447B (en) | 2009-10-13 | 2014-12-10 | Mtu Friedrichshafen Gmbh | Generating set preloader |
| JP5141673B2 (ja) | 2009-12-04 | 2013-02-13 | 株式会社デンソー | 内燃機関のアイドルストップ制御装置 |
| US9404461B2 (en) * | 2013-05-08 | 2016-08-02 | Ford Global Technologies, Llc | Method and system for engine starting |
| DE102014208932B4 (de) * | 2014-05-12 | 2024-02-08 | Rolls-Royce Solutions GmbH | Verfahren zum Betreiben einer Brennkraftmaschine, Steuergerät für eine Brennkraftmaschine, Brennkraftmaschine sowie Anlage |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5613474A (en) * | 1993-08-13 | 1997-03-25 | Komatsu Ltd. | Control method for starting diesel engines |
| US6366049B1 (en) * | 2000-05-10 | 2002-04-02 | Ecostar Electric Drive Systems L.L.C. | Motor starter and speed controller system |
| WO2003098793A1 (de) * | 2002-05-16 | 2003-11-27 | Mtu Friedrichshafen Gmbh | Verfahren zur regelung einer brennkraftmaschinen-generator-einheit |
| DE10252399A1 (de) | 2002-11-12 | 2004-06-03 | Mtu Friedrichshafen Gmbh | Verfahren zur Regelung einer Brennkraftmaschinen-Generator-Einheit |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19830341C1 (de) * | 1998-07-07 | 2000-03-30 | Siemens Ag | Verfahren zum Betreiben einer Regelungseinrichtung und Vorrichtung zur Durchführung des Verfahrens |
| DE10122517C1 (de) * | 2001-05-09 | 2002-06-20 | Mtu Friedrichshafen Gmbh | Drehzahl-Filter |
| US7028657B2 (en) * | 2004-05-14 | 2006-04-18 | General Motors Corporation | Multi-stage compression ignition engine start |
-
2003
- 2003-04-08 DE DE10315881A patent/DE10315881B4/de not_active Expired - Fee Related
-
2004
- 2004-04-06 WO PCT/EP2004/003620 patent/WO2004090310A1/de not_active Ceased
- 2004-04-06 EP EP04725901A patent/EP1611333B1/de not_active Expired - Lifetime
- 2004-04-06 US US10/552,928 patent/US7207305B2/en not_active Expired - Lifetime
- 2004-04-06 DE DE502004001492T patent/DE502004001492D1/de not_active Expired - Lifetime
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5613474A (en) * | 1993-08-13 | 1997-03-25 | Komatsu Ltd. | Control method for starting diesel engines |
| US6366049B1 (en) * | 2000-05-10 | 2002-04-02 | Ecostar Electric Drive Systems L.L.C. | Motor starter and speed controller system |
| WO2003098793A1 (de) * | 2002-05-16 | 2003-11-27 | Mtu Friedrichshafen Gmbh | Verfahren zur regelung einer brennkraftmaschinen-generator-einheit |
| DE10252399A1 (de) | 2002-11-12 | 2004-06-03 | Mtu Friedrichshafen Gmbh | Verfahren zur Regelung einer Brennkraftmaschinen-Generator-Einheit |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105888864A (zh) * | 2016-05-25 | 2016-08-24 | 海华电子企业(中国)有限公司 | 一种高压共轨柴油发动机自动电子调速装置及方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| DE10315881A1 (de) | 2004-11-11 |
| EP1611333A1 (de) | 2006-01-04 |
| DE502004001492D1 (de) | 2006-10-26 |
| US7207305B2 (en) | 2007-04-24 |
| US20060278191A1 (en) | 2006-12-14 |
| EP1611333B1 (de) | 2006-09-13 |
| DE10315881B4 (de) | 2005-07-21 |
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