CN101418746B - Method and device for reducing driving torque during reducing short-time torque - Google Patents
Method and device for reducing driving torque during reducing short-time torque Download PDFInfo
- Publication number
- CN101418746B CN101418746B CN2008101499971A CN200810149997A CN101418746B CN 101418746 B CN101418746 B CN 101418746B CN 2008101499971 A CN2008101499971 A CN 2008101499971A CN 200810149997 A CN200810149997 A CN 200810149997A CN 101418746 B CN101418746 B CN 101418746B
- Authority
- CN
- China
- Prior art keywords
- moment
- internal
- combustion engine
- engine
- cylinder
- 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.)
- Active
Links
- 238000000034 method Methods 0.000 title claims abstract description 30
- 238000002485 combustion reaction Methods 0.000 claims abstract description 70
- 239000002912 waste gas Substances 0.000 claims description 29
- 239000007789 gas Substances 0.000 claims description 11
- 230000001276 controlling effect Effects 0.000 description 12
- 230000005540 biological transmission Effects 0.000 description 7
- 239000003054 catalyst Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 238000002347 injection Methods 0.000 description 6
- 239000007924 injection Substances 0.000 description 6
- 230000008569 process Effects 0.000 description 5
- 230000008859 change Effects 0.000 description 4
- 230000002349 favourable effect Effects 0.000 description 4
- 239000000446 fuel Substances 0.000 description 4
- 238000010304 firing Methods 0.000 description 3
- 239000007921 spray Substances 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 230000001235 sensitizing effect Effects 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004590 computer program Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 230000002085 persistent effect Effects 0.000 description 1
- 230000010349 pulsation Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
Images
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
- F02D41/14—Introducing closed-loop corrections
- F02D41/1497—With detection of the mechanical response of the engine
-
- 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
-
- 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
- F02D41/0087—Selective cylinder activation, i.e. partial cylinder operation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
- F02P5/00—Advancing or retarding ignition; Control therefor
- F02P5/04—Advancing or retarding ignition; Control therefor automatically, as a function of the working conditions of the engine or vehicle or of the atmospheric conditions
- F02P5/145—Advancing or retarding ignition; Control therefor automatically, as a function of the working conditions of the engine or vehicle or of the atmospheric conditions using electrical means
- F02P5/15—Digital data processing
- F02P5/1502—Digital data processing using one central computing unit
- F02P5/1504—Digital data processing using one central computing unit with particular means during a transient phase, e.g. acceleration, deceleration, gear change
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D2250/00—Engine control related to specific problems or objectives
- F02D2250/18—Control of the engine output torque
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D2250/00—Engine control related to specific problems or objectives
- F02D2250/18—Control of the engine output torque
- F02D2250/22—Control of the engine output torque by keeping a torque reserve, i.e. with temporarily reduced drive train or engine efficiency
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/40—Engine management systems
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Signal Processing (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
- Electrical Control Of Ignition Timing (AREA)
Abstract
The invention relates to a method and a device for reducing driving moment in an operation of reducing short-time moment. The invention relates to a method for driving an internal-combustion engine (2) in an engine system (1), wherein the internal-combustion engine (2) works according to a predetermined value of a rated moment; and in an event of the operation displaying reduced moment, the rated moment of the internal-combustion engine (2) is reduced, and the number and/or an ignition advance angle of a stoppage cylinder (3) are proper, during the event, the number of the stoppage cylinder (3) is determined according to the predetermined rated moment and the state of the engine system (1).
Description
Technical field
The present invention relates to a kind of reducing moment in short-term operation such as ESP-operation, the transmission operation in shift process or the needed operation of limiting engine maximum (top) speed in reduce the method and apparatus of engine driving torque.
Background technique
When car combustion engine carries out work, the operation that operation in short-term, that reduce moment such as ESP-operation, the operation of the transmission in shift process sometimes occurs or produce by the restriction maximum (top) speed.When producing the operation that reduces moment, the moment that is provided by motor is reduced.The moment that is provided by motor can especially change the motor effective coefficient by adjusting ignition advance angle, stop needed one or more cylinder of specified minimizing level or adjust air-fuel oil and reduce than (passing through λ).
According to the working state of internal-combustion engine or engine system, stop cylinder or carry out the rated moment that the ignition advance angle adjustment is suitable for reducing in short-term internal-combustion engine.For example, only have to the internal-combustion engine rated moment no longer by adjust in ignition advance angle adjustment, especially ignition advance angle evening change time, just execution stops for high as far as possible exhaust mass.But, in contrast, in the situation that reduces in short-term rated moment, need the minimizing level (stopping) of maximum number and just specified ignition advance angle is adjusted to more morning as possible, it is disadvantageous using for the best of internal-combustion engine.In addition, for example need heat load higher, waste gas system, the number that therefore injection is stopped to minimize, thereby the throughput by the fresh air in the cylinder arrival waste gas system is minimized.
In addition, it is undesirable travelling in the situation that a plurality of cylinders stop to spray, and this can affect smooth running and driver's noise expansion negatively.In addition, for the reason according to the part in the system mode protection waste gas system, thereby make less number or plurality purpose cylinder stop to be suitable for that heat in the catalyst converter enters is desirable.It is favourable based on variable speed operation when injection stops for example.
In addition, owing to the smooth running of the Running noise that changes and variation, revealing to early adjusting the number of cylinders purpose sudden change that stops that ignition advance angle causes from evening.In addition, the ignition advance angle by early has been absorbed in the pinking sensitizing range of internal-combustion engine, and this can cause because the pinking that the combustion regime of variation produces.
Summary of the invention
Therefore, the purpose of this invention is to provide a kind of method and apparatus and stop and by adjusting the shortcoming when reducing rated moment in short-term in ignition advance angle evening to overcome in the injection by cylinder, and especially make the minimum loads of engine components and improve service behaviour and the toxic emission of motor.
This purpose is by method claimed in claim 1 with by realizing according to the described device of dependent claims.
Other favourable layout record of the present invention in the dependent claims.
According to first aspect, the method for operation of the internal-combustion engine in a kind of engine system, wherein internal-combustion engine carries out work according to the predetermined value of rated moment.In the event that shows the operation that reduces moment, the rated moment of internal-combustion engine is reduced, and wherein makes the number and/or the ignition advance angle that stop cylinder suitable.During this event, the number that stops cylinder being determined according to the state of predefined rated moment and engine system.
Top method is based on following theory, and the number that namely stops cylinder in the operation that reduces moment in short-term really normal root is realized according to the state of total system.It causes, not in the each operation that reduces moment, only determine to stop the number (specified minimizing level) of cylinder according to the rated moment that reduces, but consider the state of total system, thereby by stopping cylinder or reducing as much as possible unfavorable effect by adjusting the evening of ignition advance angle.
Especially the state that comprises the engine system of waste gas part (catalyst converter) is determined by in the following parameter one or more:
The rotating speed of internal-combustion engine;
Mass flow rate in the engine exhaust gas part;
Exhaust gas temperature;
The temperature of the air of supplying with;
The mass flow rate of the air of supplying with;
Air pressure in the suction tude;
The λ value of waste gas;
Be provided to drive control signal internal-combustion engine, sparger; And
Be provided to drive control signal internal-combustion engine, throttle valve.
State according to the engine system that comprises waste gas part (catalyst converter) is determined interpolation coefficient, this coefficient shows, during this event, realize what degree that is reduced to of rated moment by stopping cylinder, and realize what degree that is reduced to of rated moment by adjusting ignition advance angle.
In addition, determine benchmark moment by interpolation coefficient, determine to stop the number of cylinder by this benchmark moment, wherein interpolation coefficient has been set the benchmark moment in the scope between the basic moment of minimum and maximum basic moment.
Determine interpolation coefficient with reference to the generation of galloping and/or pinking and with reference to temperature and/or exhaust mass in the waste gas part of internal-combustion engine.
According to embodiment, when the exhaust gas temperature of considering internal-combustion engine and smoothness of operation, determine interpolation coefficient, its method is that the number that stops cylinder so being selected, namely ignition advance angle is selected to evening as much as possible and is no more than the temperature extremes value of waste gas.
According to another aspect, a kind of engine controlling unit is provided, it drives the internal-combustion engine in the engine system.This engine controlling unit is formed, predetermined value according to rated moment drives internal-combustion engine, accept to show the parameter of the event that reduces torque operation, when accepting the parameter of event, reduce the rated moment of internal-combustion engine, reach number and the ignition advance angle of selecting to stop cylinder, therefore can reach this rated moment.Engine controlling unit also forms, during this event according to rated moment given in advance with determine to stop the number of cylinder according to the state of engine system.
According to another aspect, a kind of engine system with above-mentioned engine controlling unit and internal-combustion engine is provided, this system comes work by engine controlling unit.
According to another aspect, a kind of computer program is provided, this program comprises program-code, this program-code is realized said method when data processing equipment is implemented it.
Description of drawings
At length explain the preferred embodiments of the present invention with reference to accompanying drawing below.Wherein
Fig. 1 is the skeleton diagram of engine system of explaining the method for the embodiment of the invention;
Fig. 2 is provided to show the flow chart of method step that reduces in short-term the method for rated moment according to the embodiment of the invention;
Fig. 3 and 4 is plotted curves of the engine parameter of different specified minimizing levels.
Embodiment
In Fig. 1, schematically show the engine system 1 that is used in total system such as the automobile.This engine system 1 comprises the internal-combustion engine 2 with many cylinders 3.This internal-combustion engine 2 is controlled in known manner by engine controlling unit 4, so that by power train 5 output rated moments.The number that is arranged on the cylinder in the internal-combustion engine 2 is arbitrarily basically.
When this internal-combustion engine 2 turns round, when for example this internal-combustion engine 2 in automobile turns round, transmission when reaching the combination that reduces moment in short-term such as ESP in conjunction with, shift process in conjunction with, make rated torque be reduced to the combination of rotating speed restriction, and other combinations, the moment of namely transmitting by the power train 5 of internal-combustion engine 2 is reduced at short notice.
In Fig. 1, for example power train 5 is connected with driving mechanism 9 by clutch 8, and this driving mechanism 9 links to each other with transmission control device 10, in order to realize automatic transmission.In shift process, adhesion is disconnected in short time in whole or in part by power train 5, and therefore the loading moment near internal-combustion engine 2 obviously has been reduced.Usually, the combination of this minimizing moment is connected with engine controlling unit 4.
For the combination that reduces moment in short-term, need to reduce as quickly as possible engine moment, in order to allow to improve this in conjunction with revolution constantly unhappyly.Preferably, when quiescent operation, so adjust engine moment, so that it also can not change the revolution of internal-combustion engine 2 significantly during combination.In order not improve rapidly in conjunction with revolution constantly, therefore need faster moment combination.But, for moment changes fast, in petrol engine, because the actual reaction time that is full of in the cylinder is relatively long, therefore control in conjunction with as adjust throttle valve or adjust the fuel quantity that sprays in the petrol engine owing to be the necessity of fuel/air mixture of stoichiometric(al) but inappropriate basically.Moment changes usually by stopping (Ausblenden) one or more cylinder 3 or realizing by adjusting firing angle fast.
Therefore, determine to realize (maximum) specified minimizing level (stopping level) of the rated moment that reduces by following formula:
Redsol=ZYLZA * (1-etaredsol), wherein
etaredsol＝misol/mibmx，
Wherein redsol represents specified minimizing level, ZYLZA represents the number of cylinder of internal combustion engine, etaredsol represents the desirable coefficient of ceasing to have effect, misol represents the rated moment of internal-combustion engine, and mibmx is illustrated in the maximum basic moment under the actual working state in the whole fuel supply work of internal-combustion engine (i.e. maximum basic moment when best as far as possible ignition advance angle).
If the rated moment that reduces can realize by adjusting ignition advance angle, be suitable for so:
Zwsol=DZWETA (etazwsol) wherein,
etazwsol＝misol/(miopt×(1-redist/ZYLZA))
Wherein zwsol represents specified ignition advance angle, DZWETA represents the function relation between ignition advance angle and the ignition advance angle efficient, etazwsol represents desirable ignition advance angle effective coefficient, and miopt represents best rated moment, and redist represents actual minimizing level.
By making the number that stops cylinder large as far as possible or by making ignition advance angle realize that as far as possible the short-term of rated moment misol reduces evening, has different merits and demerits according to following these aspects, it is the working state that these aspects depend on total system, the state of the single structure spare of engine system for example, and therefore can determine the performance of total system.Therefore, increase the quantity stop cause can cooled exhaust air system, especially cooling settings in catalyst converter 12 wherein, because cooled off the structural member that is arranged in the waste gas system by the air of the cylinder institute pumping that stops.Therefore, the number that stops cylinder by increase for example can avoid damaging the structural member in the waste gas system.
On the other hand, larger specified minimizing level causes such result, and the performance of engine system especially causes the smooth running of motor when being used for automobile be not that the best and driver can adversely feel higher noise expansion.
Thereby the unexpected raising of specified minimizing level from evening to early or the jump that from morning to night produces ignition advance angle when arriving desirable rated moment, this has produced the Noise Generated by Running Vehicles of variation and the cruising characteristic of variation, and they are for example so that can not improve driving comfort.If this adjustment causes ignition advance angle early, internal-combustion engine carries out work in the pinking sensitizing range so, because the firing chamber state that changes such as cylinder charging, residual gas, suction press pulsation etc., this may produce pinking.
Have the goal conflict when spraying the rated moment that the measure that stops number and adjust ignition advance angle realizes reducing by fixing:
Avoid pinking or pinking to interfere;
In the waste gas part, avoid adding too many heat;
The operational noise that avoids interference and non-persistent cruising characteristic.
System mode for example can be determined by resulting engine temperature parameter and status parameter in engine controlling unit, perhaps obtain by the appropriate sensor in the engine system.Determine that at first this minimizings level is favourable to fix this minimizings level and to carry out the ignition advance angle adjusting because with compare by stopping cylinder, by the adjustment ignition advance angle rated moment is changed in less zone.
When determining desirable specified minimizing level, it is important selecting suitable benchmark moment mibred.It is suitable for:
mibred＝f(mibmx，minmn，fetared)
etaredsol＝misol/mibred
Wherein interpolation coefficient fetared is stopped to derive with the separately requirement of system mode by injection.The number range of interpolation coefficient fetared is 0 to 1, and wherein mibred is corresponding with the minimum basic moment of mibmn when fetared=0, and corresponding with the maximum basic moment of mibmx when fetared=1.When determining specified minimizing level according to the basic moment mibmn of minimum rather than according to the basic moment mibmx of maximum, work is preferably to have minimum may spraying and stops number, be that ignition advance angle is in the zone of late ignition advance angle, and therefore produced more greatly or large as far as possible a part of moment minimizing.Determine that according to the basic moment mibmx of maximum specified minimizing level is corresponding with following situation on the contrary, namely need to spray the maximum number that stops, and therefore ignition advance angle is in the zone of ignition advance angle early.
Value at fetared is 0 to 1 o'clock, and the needs of the maximum number that the minimal amount that stops according to required injection and needed injection stop to be combined with definite specified minimizing level accordingly with interpolation coefficient fetared mutually.Can stipulate the value between 0 to 1, in order to when the engine condition of regulation, arrive the intermediateness as compromise proposal.For example, when fetared=0.5, the benchmark moment of namely determining to stop level and ignition advance angle is in the intermediate value between the minimum and maximum basic moment, not only can avoid or reduce pinking, and can avoid or reduce operational noise and the not stationarity of travelling that too high heat enters into the gas part, disturbs, until reduce to certain degree.Therefore, stop to depend on the counter productive of ignition advance angle adjustment this state ground generation of engine system 1, so the detrimental effect of this measure can not surpass definite, the predetermined limiting value of determining.For example, by cylinder stop the temperature of waste gas part is reduced.But in order to avoid as much as possible pinking when the ignition advance angle that carries out the back is adjusted in early days, so the minimizing of rated moment not only realizes by stopping cylinder.But, determine to stop the number of cylinder by the selected interpolation coefficient fetared that goes out, as be no more than this temperature threshold needed.Realize the continuous decrease of rated moment by the adjustment of ignition advance angle.Therefore, when the temperature of needs restriction waste gas part, just can further avoid as much as possible the galloping of motor or the operational noise of interference.
When basic moment of torsion mibmx (maximum is moment substantially) is used as the benchmark size of calculating the coefficient etaredsol that ceases to have effect, because the tandem that moment changes, namely calculate continuously and reduce level and ignition advance angle, therefore carry out adopting when specified ignition advance angle calculates near the as far as possible ignition advance angle of morning that changing after reducing level (zwbas), and reaching maximum adjustment range along the direction in " evening " of ignition advance angle thus.
In addition, minimum basic moment mibmn can as the benchmark size, therefore produce the minimal amount that stops cylinder 3 of internal-combustion engine 2 according to needed rated moment misol.Specified ignition advance angle zwsol remains close to the lower limit (the intermittently limit) of ignition advance angle, namely near adjusting the maximum evening of ignition advance angle.
When selection strategy, want the reaction of taking into account system.Realize that when stopping cylinder and have maximum number rated moment provides such advantage, namely ignition advance angle turns back to again near on value zwbas, as far as possible early, and therefore the dominant bit that reduces of moment promotes and adjusts the evening that also is used for ignition advance angle.Therefore heat affecting to waste gas system is minimum.
Calculating with the minimal amount that stops cylinder provides such advantage in contrast to this, has namely avoided the large jump of specified minimizing level, wherein ignition advance angle still remain on as far as possible evening value zwspae near.In addition, for example waste gas carries out the heat heating by ignition advance angle adjustment in evening.This for example is favourable after engine cold starting, in order to make catalyst converter arrive as quickly as possible desirable operating temperature.Simultaneously, reduced pinking trend.Especially when larger load, equilibrium is on the impact of exhaust mass and the heat load of waste gas system mutually.
The system mode of considering when calculating specified minimizing level can for example be described in suitable mode by the mass flow rate in actual speed, the waste gas system and corresponding exhaust gas temperature.Functional device 15 is suitable for describing, and this functional device 15 is for example storing the motor combined characteristic, and this characteristic curve is for engine controlling unit 4, and fetared depends on system mode and provides accordingly.
System mode can be such as determining according to the control signal of sparger, throttle valve etc. and by the temperature transducer in suction tude, waste gas part or the catalyst converter, mass sensor, pressure transducer, the probe of γ and the sensor signal of other sensor in the suction tude.Thus, can obtain in known manner the parameter of system, can know system mode and describe this state by described parameter.
Figure 2 illustrates the flow chart of explaining the inventive method.In step S1, obtain system mode, it is the selection that system mode can affect the minimizing mode of rated moment, be that it obtains system mode, determine that according to described system mode whether the minimizing of rated moment misol is earlier by stopping cylinder 3 or earlier realizing by ignition advance angle adjustment in evening.Determine in step S2 whether the operation that moment reduces realize, for example the corresponding event signal of the transmission control 10 by engine controlling unit 4 is provided is determined.Event signal can represent transmission operation, the restriction needed operation of maximum (top) speed of for example ESP-operation, shift process or reduce other operation of load moment in the short time.If this event signal E represents that rated moment was reduced in the short time, the method for step S3 is proceeded so.Otherwise the method turns back among the step S1.
In step S3, according in the prior resulting system mode of step S1 by from motor characteristic curve, selecting or by obtaining interpolation coefficient fetared with suitable function, and calculate desirable benchmark moment mibred by this interpolation coefficient fetared.This desirable benchmark moment mibred determines the coefficient of ceasing to have effect according to the top given etaredsol=misol/mibred that concerns by the rated moment that sets in advance, and this coefficient of ceasing to have effect represents to stop the number of cylinder.Further according to above-mentioned formula, obtain corresponding ignition advance angle zwsol by this number that stops cylinder.
In step S4, motor carries out work with the ignition advance angle zwsol that stops accordingly grade etaredsol and calculated.In step S5, determine whether event signal provides the end that moment reduces operation.If event signal has shown this, jump back to so among the step S1.Otherwise, continuing in step S4, motor carries out work with corresponding parameter.
Figure 3 illustrates rated moment, reality-ZW-effective coefficient, minimum and maximum basic moment, actual moment, stop the curve of level and the coefficient of ceasing to have effect when interpolation coefficient fetared=1.People know that at the cylinder stopping period of maximum number, ignition advance angle is positioned at the early zone than the preignition advance angle.In Fig. 3, can see further that also ignition advance angle fluctuates consumingly.
In Fig. 4, show the response curve when interpolation coefficient fetared=0.Here people can see, ignition advance angle still is in the zone of more late fiery advance angle, and carry out stopping of minimal amount.
Claims (12)
1. method that be used for to drive the internal-combustion engine (2) of engine system (1),
Wherein internal-combustion engine (2) carries out work according to the predetermined value of rated moment;
When showing the event of the operation that reduces moment, the rated moment of internal-combustion engine (2) is reduced, and wherein, makes the number and/or the ignition advance angle that stop cylinder (3) suitable, it is characterized in that,
During this event, the number that stops cylinder (3) determines according to the state of predefined rated moment and engine system (1),
Wherein, determine interpolation coefficient according to the state of engine system (1), this interpolation coefficient shows, during this event, the minimizing of rated moment is to determine by stopping cylinder (3) in which scope, and which scope to be to determine by adjusting ignition advance angle in
Wherein, determine benchmark moment by interpolation coefficient, determine to stop the number of cylinder (3) by this benchmark moment, wherein interpolation coefficient has been set the benchmark moment in the basic moment of minimum and the maximum substantially scope between the moment.
2. method according to claim 1, wherein the state of engine system is determined by in the following parameter one or more:
The rotating speed of internal-combustion engine (2);
Mass flow rate in the waste gas part (6) of engine system (1);
Exhaust gas temperature;
The temperature of the air of supplying with;
The mass flow rate of the air of supplying with;
Air pressure in the suction tude;
The λ value of waste gas;
The control signal that is provided to drive internal-combustion engine (2) of sparger; And
The control signal that is provided to drive internal-combustion engine (2) of throttle valve.
3. method that be used for to drive the internal-combustion engine (2) of engine system (1),
Wherein internal-combustion engine (2) carries out work according to the predetermined value of rated moment;
When showing the event of the operation that reduces moment, the rated moment of internal-combustion engine (2) is reduced, and wherein, makes the number and/or the ignition advance angle that stop cylinder (3) suitable, it is characterized in that,
During this event, the number that stops cylinder (3) determines according to the state of predefined rated moment and engine system (1),
Wherein, determine interpolation coefficient according to the state of engine system (1), this interpolation coefficient shows, during this event, the minimizing of rated moment is to determine by stopping cylinder (3) in which scope, and which scope to be to determine by adjusting ignition advance angle in
Wherein, determine interpolation coefficient with reference to the generation of galloping and/or pinking and with reference to temperature and/or exhaust mass in the waste gas part of internal-combustion engine (2).
4. method according to claim 3, wherein the state of engine system is determined by in the following parameter one or more:
The rotating speed of internal-combustion engine (2);
Mass flow rate in the waste gas part (6) of engine system (1);
Exhaust gas temperature;
The temperature of the air of supplying with;
The mass flow rate of the air of supplying with;
Air pressure in the suction tude;
The λ value of waste gas;
The control signal that is provided to drive internal-combustion engine (2) of sparger; And
The control signal that is provided to drive internal-combustion engine (2) of throttle valve.
5. method that be used for to drive the internal-combustion engine (2) of engine system (1),
Wherein internal-combustion engine (2) carries out work according to the predetermined value of rated moment;
When showing the event of the operation that reduces moment, the rated moment of internal-combustion engine (2) is reduced, and wherein, makes the number and/or the ignition advance angle that stop cylinder (3) suitable, it is characterized in that,
During this event, the number that stops cylinder (3) determines according to the state of predefined rated moment and engine system (1),
Wherein, determine interpolation coefficient according to the state of engine system (1), this interpolation coefficient shows, during this event, the minimizing of rated moment is to determine by stopping cylinder (3) in which scope, and which scope to be to determine by adjusting ignition advance angle in
Wherein, when the exhaust gas temperature of considering internal-combustion engine (2) and smoothness of operation, determine interpolation coefficient.
6. method according to claim 5, wherein the state of engine system is determined by in the following parameter one or more:
The rotating speed of internal-combustion engine (2);
Mass flow rate in the waste gas part (6) of engine system (1);
Exhaust gas temperature;
The temperature of the air of supplying with;
The mass flow rate of the air of supplying with;
Air pressure in the suction tude;
The λ value of waste gas;
The control signal that is provided to drive internal-combustion engine (2) of sparger; And
The control signal that is provided to drive internal-combustion engine (2) of throttle valve.
7. method according to claim 5 is wherein by selecting to stop the number of cylinder, so that ignition advance angle is selected to evening as much as possible and is no more than the temperature extremes value of waste gas.
8. an engine controlling unit (4), its drives the internal-combustion engine (2) in engine system (1), and wherein this engine controlling unit (4) is constructed to,
Predetermined value according to rated moment drives internal-combustion engine (2);
Accept to show the parameter of the event that reduces torque operation;
When accepting the parameter of event, reduce the rated moment of internal-combustion engine (2);
Selection stops number and the ignition advance angle of cylinder (3), to reach this rated moment;
It is characterized in that,
This engine controlling unit (4) forms, and determines to stop the number of cylinder (3) according to rated moment given in advance with according to the state of engine system (1) during this event,
Wherein, determine interpolation coefficient according to the state of engine system (1), this interpolation coefficient shows, during this event, the minimizing of rated moment is to determine by stopping cylinder (3) in which scope, and which scope to be to determine by adjusting ignition advance angle in
Wherein, determine benchmark moment by interpolation coefficient, determine to stop the number of cylinder (3) by this benchmark moment, wherein interpolation coefficient has been set the benchmark moment in the basic moment of minimum and the maximum substantially scope between the moment.
9. an engine controlling unit (4), its drives the internal-combustion engine (2) in engine system (1), and wherein this engine controlling unit (4) is constructed to,
Predetermined value according to rated moment drives internal-combustion engine (2);
Accept to show parameter operation, event that reduces moment;
When accepting the parameter of event, reduce the rated moment of internal-combustion engine (2);
Selection stops number and the ignition advance angle of cylinder (3), to reach this rated moment;
It is characterized in that,
This engine controlling unit (4) forms, and determines to stop the number of cylinder (3) according to rated moment given in advance with according to the state of engine system (1) during this event,
Wherein, determine interpolation coefficient according to the state of engine system (1), this interpolation coefficient shows, during this event, the minimizing of rated moment is to determine by stopping cylinder (3) in which scope, and which scope to be to determine by adjusting ignition advance angle in
Wherein, determine interpolation coefficient with reference to the generation of galloping and/or pinking and with reference to temperature and/or exhaust mass in the waste gas part of internal-combustion engine (2).
10. an engine controlling unit (4), its drives the internal-combustion engine (2) in engine system (1), and wherein this engine controlling unit (4) is constructed to,
Predetermined value according to rated moment drives internal-combustion engine (2);
Accept to show parameter operation, event that reduces moment;
When accepting the parameter of event, reduce the rated moment of internal-combustion engine (2);
Selection stops number and the ignition advance angle of cylinder (3), to reach this rated moment;
It is characterized in that,
This engine controlling unit (4) forms, and determines to stop the number of cylinder (3) according to rated moment given in advance with according to the state of engine system (1) during this event,
Wherein, determine interpolation coefficient according to the state of engine system (1), this interpolation coefficient shows, during this event, the minimizing of rated moment is to determine by stopping cylinder (3) in which scope, and which scope to be to determine by adjusting ignition advance angle in
Wherein, when the exhaust gas temperature of considering internal-combustion engine (2) and smoothness of operation, determine interpolation coefficient.
11. engine controlling unit according to claim 10 (4) is wherein by selecting to stop the number of cylinder, so that ignition advance angle is selected to evening as much as possible and is no more than the temperature extremes value of waste gas.
12. an engine system (1) that has according to claim 8 each described engine controlling unit (4) and internal-combustion engine (2) in 11, this system comes work by engine controlling unit (4).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102007051252.1 | 2007-10-26 | ||
| DE102007051252.1A DE102007051252B4 (en) | 2007-10-26 | 2007-10-26 | Method and device for reducing the drive torque during brief torque-reducing interventions |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101418746A CN101418746A (en) | 2009-04-29 |
| CN101418746B true CN101418746B (en) | 2013-03-20 |
Family
ID=40490201
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008101499971A Active CN101418746B (en) | 2007-10-26 | 2008-10-24 | Method and device for reducing driving torque during reducing short-time torque |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN101418746B (en) |
| DE (1) | DE102007051252B4 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102008046844B4 (en) * | 2008-09-08 | 2021-07-01 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Method for controlling an internal combustion engine of a drive train of a motor vehicle |
| DE102013108580A1 (en) * | 2013-08-08 | 2015-03-05 | Daimler Ag | Method and device for operating an engine system with an internal combustion engine in a mode changeover |
| DE102014222474A1 (en) * | 2014-11-04 | 2016-05-04 | Bayerische Motoren Werke Aktiengesellschaft | Adjustment of the fluid quantity of the system for additional injection of an internal combustion engine to the signal of the knock control |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1035345A (en) * | 1988-10-11 | 1989-09-06 | 王兆伦 | Stroke-less internal-combustion engine |
| CN1184740A (en) * | 1996-10-16 | 1998-06-17 | 大众汽车有限公司 | Method for controlling moment of torque output by automobile's driven device |
| DE10114054A1 (en) * | 2001-03-15 | 2002-09-26 | Volkswagen Ag | Raising externally ignited direct injection combustion engine exhaust gas temperature involves setting injection angle control end for last injection between 80, 10 degrees before TDC |
| CN1722030A (en) * | 2004-07-15 | 2006-01-18 | 株式会社日立制作所 | Vehicle control system |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5183128A (en) * | 1990-02-27 | 1993-02-02 | Mitsubishi Jidosha Kogyo Kabushiki Kaisha | Apparatus for controlling the output of a vehicle equipped with an internal combustion engine |
| DE4239711B4 (en) * | 1992-11-26 | 2005-03-31 | Robert Bosch Gmbh | Method and device for controlling a vehicle |
| DE4334864C2 (en) * | 1993-10-13 | 2003-01-30 | Bosch Gmbh Robert | Method and device for controlling an internal combustion engine |
| DE19619320A1 (en) * | 1995-10-07 | 1997-04-10 | Bosch Gmbh Robert | Method and device for controlling an internal combustion engine |
| DE19538369A1 (en) * | 1995-10-14 | 1997-04-17 | Bosch Gmbh Robert | Method and arrangement for reducing load changes in a motor vehicle |
| DE19813380A1 (en) * | 1998-03-26 | 1999-10-07 | Bosch Gmbh Robert | Method for operating an internal combustion engine |
| DE19948153A1 (en) * | 1999-10-07 | 2001-04-12 | Volkswagen Ag | Method and arrangement for reducing load changes in a motor vehicle |
| JP2001248487A (en) * | 2000-03-02 | 2001-09-14 | Denso Corp | Control device for internal combustion engine |
| JP4140242B2 (en) * | 2002-01-28 | 2008-08-27 | トヨタ自動車株式会社 | Control device for internal combustion engine |
-
2007
- 2007-10-26 DE DE102007051252.1A patent/DE102007051252B4/en active Active
-
2008
- 2008-10-24 CN CN2008101499971A patent/CN101418746B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1035345A (en) * | 1988-10-11 | 1989-09-06 | 王兆伦 | Stroke-less internal-combustion engine |
| CN1184740A (en) * | 1996-10-16 | 1998-06-17 | 大众汽车有限公司 | Method for controlling moment of torque output by automobile's driven device |
| DE10114054A1 (en) * | 2001-03-15 | 2002-09-26 | Volkswagen Ag | Raising externally ignited direct injection combustion engine exhaust gas temperature involves setting injection angle control end for last injection between 80, 10 degrees before TDC |
| CN1722030A (en) * | 2004-07-15 | 2006-01-18 | 株式会社日立制作所 | Vehicle control system |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102007051252B4 (en) | 2021-03-18 |
| DE102007051252A1 (en) | 2009-04-30 |
| CN101418746A (en) | 2009-04-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101424234B (en) | Lift pump control in engine fuel system with injection | |
| CN100470027C (en) | Control apparatus for internal combustion engine | |
| CN102039892B (en) | System and method for controlling torque during engine start operations in a hybrid vehicle | |
| US20190170074A1 (en) | Method and apparatus for determining optimum skip fire firing profile | |
| CN101713342B (en) | Torque based clutch fuel cut off | |
| US20100318268A1 (en) | Method for controlling the compressed air supply of an internal combusion engine and transmission | |
| US7617673B2 (en) | Controller for internal combustion engine | |
| CN102951156B (en) | For method and the control system thereof of crank torque amendment | |
| CN101545410B (en) | Reserve torque for lean equivalence ratio requests | |
| CN104520157A (en) | Drive train slip for vibration mitigation during skip fire operation | |
| US7377250B1 (en) | System and method for balancing an engine during cylinder cutout | |
| US20020072844A1 (en) | Method, computer program, and control system for operating a motor vehicle having an internal combustion engine | |
| CN101006264A (en) | Fuel quantity modulation in pilot ignited engines | |
| KR20020005760A (en) | System and method for controlling fuel injections | |
| CN101949332A (en) | Vehicle control apparatus | |
| CN101705877B (en) | Cooridnated torque control operation with de-energized throttle | |
| KR101128653B1 (en) | Method for controlling an internal combustion engine | |
| CN100488795C (en) | Method for operating a hybrid motor vehicle | |
| CN101994585A (en) | Control system and method for idle speed control torque reserve reduction | |
| CN101418746B (en) | Method and device for reducing driving torque during reducing short-time torque | |
| KR20150038113A (en) | Firing fraction management in skip fire engine control | |
| CN104421021A (en) | Systems and methods for engine control based on engine oil viscosity | |
| EP2146081B1 (en) | Controller of internal combustion engine | |
| CN1217766A (en) | Method for controlling knocking in multicylinder internal combustion engines | |
| EP1801397A2 (en) | Method and device for controlling combustion of internal-combustion engine, and vehicle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |