CN109424464A - Method for running combustion motors during heat engine is run - Google Patents
Method for running combustion motors during heat engine is run Download PDFInfo
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- CN109424464A CN109424464A CN201811025699.1A CN201811025699A CN109424464A CN 109424464 A CN109424464 A CN 109424464A CN 201811025699 A CN201811025699 A CN 201811025699A CN 109424464 A CN109424464 A CN 109424464A
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Classifications
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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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D43/00—Conjoint electrical control of two or more functions, e.g. ignition, fuel-air mixture, recirculation, supercharging or exhaust-gas treatment
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D37/00—Non-electrical conjoint control of two or more functions of engines, not otherwise provided for
- F02D37/02—Non-electrical conjoint control of two or more functions of engines, not otherwise provided for one of the functions being ignition
-
- 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
- F02D41/064—Introducing corrections for particular operating conditions for engine starting or warming up for starting at cold start
-
- 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
- F02D41/068—Introducing corrections for particular operating conditions for engine starting or warming up for warming-up
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/02—Circuit arrangements for generating control signals
- F02D41/14—Introducing closed-loop corrections
- F02D41/1438—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor
- F02D41/1444—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the characteristics of the combustion gases
- F02D41/1454—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the characteristics of the combustion gases the characteristics being an oxygen content or concentration or the air-fuel ratio
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- 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
- F02P5/045—Advancing or retarding ignition; Control therefor automatically, as a function of the working conditions of the engine or vehicle or of the atmospheric conditions combined with electronic control of other engine functions, e.g. fuel injection
-
- 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
- F02D2041/1418—Several control loops, either as alternatives or simultaneous
-
- 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
- F02D41/30—Controlling fuel injection
- F02D41/32—Controlling fuel injection of the low pressure type
- F02D41/34—Controlling fuel injection of the low pressure type with means for controlling injection timing or duration
Landscapes
- 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
The present invention relates to it is a kind of for during heat engine is run run combustion motors method, wherein at least two adjustment parameters with from label motor rotary speed (ωe) parameter, label the air-fuel ratio (λ) during burning parameter and mark burning position (COC) parameter in the mode selected be adjusted in target value in the range that multi-parameter is adjusted respectively, wherein, multi-parameter adjust range in, at least two adjusting parameters with from description air capacity parameter (uα), description the amount of injection parameter () and description the angle of ignition parameter (uζ,i) mode selected is determined.
Description
Technical field
The present invention relates to the method for running combustion motors during heat engine is run and the fortune for executing this method
Calculate unit and computer program.
Background technique
Cold start, that is to say, that the operation without preparatory pre-add hot cooling water and/or oil starts, with special size to combustion
Motor load is burnt, and may also lead to raised discharge of poisonous waste.By motor measure, to the load appropriate of motor or
The additional heating of person, the running temperature being optimal as rapidly as possible reduce to harmful substance discharge, abrasion and specific consumption most
It is low.
The rotational speed regulation during motor heat engine is run can for example be implemented in the operation controlled in this case.
Motor rotary speed can be adjusted in the case where air throttle slowly changes by the matching of the angle of ignition.The variation of air throttle changes
Become available air capacity, and the angle of ignition then directly affects the efficiency of burning.Furthermore two channels pass through them for turning
Speed effect and air-fuel ratio in the cylinder is had an impact.The air-fuel ratio can pass through isolated one-parameter adjuster again
(single input single output, SISO, single-input single-output) is adjusted, which changes spray
The fuel mass penetrated.
In heat engine operation, the angle of ignition by pre-control can behindhand arrange relatively, although this is resulted in slow burning
The efficiency of combustion of difference in position, but it is desirable to ground results in the exhaust gas of heat, this has the effect of rapidly heatable catalytic converter.
But occur in the slow angle of ignition in aflame relatively high variability, this may cause in revolving speed
High variability.Because speed regulator also has an impact to air-fuel ratio as mentioned above, made to corresponding feedback regulation
At difficulty.
Summary of the invention
The present invention proposes in this context: the operation of motor heat engine is used with the feedback based on combustion characteristic
(Feedback) multi-parameter is adjusted.Therefore according to the invention it is proposed that with independent patent claim feature, be used for
The method of combustion motors is run during heat engine operation and arithmetic element and computer program for executing this method.Favorably
Structural scheme be dependent claims and subsequent specification theme.
Be using the purpose adjusted in the running multi-parameter of motor heat engine: in slow burning position using revolving speed and
Air-fuel ratio influences mutual few transverse direction to adjust motor itself.Three preferred adjusting path (air paths, fuel
Path and angle of ignition path) it can so change in a coordinated fashion.According to the present invention, therefore using empty from label
The parameter (such as air capacity itself or throttle position) of tolerance, mark the amount of injection parameter (such as the amount of injection itself or
Injecting time) and label the angle of ignition parameter (such as angle of ignition itself) at least two parameters as adjusting output parameter
(adjusting parameter).
According to the present invention, using from label motor rotary speed parameter (such as motor rotary speed itself or instruction mean pressure
Power), the parameter (such as λ value) of air-fuel ratio of the label during burning and the parameter (such as angle of ignition) for marking burning position
As adjustment parameter, (parameter as that is: the actual value of the parameter is adjusted to target value at least two parameters
On).The actual value of the parameter form the feedback (actual value) of adjusting and can for example in a manner of sensor or with
The mode of calculating determines.Determine that revolving speed and air-fuel ratio (λ) are universal in a manner of sensor.Burning position can for example lead to
It crosses the pressure sensor in a combustion chamber of each cylinder or is obtained indirectly by tach signal, such as by with lower section
Burning position is determined before combustion or after being combusted by means of energy balane from rotation speed change curve likes:.Because described
Air-fuel ratio and burning position are the parameters of each cylinder, it is possible to implement the adjusting of each cylinder.But this be not excluded for it is non-
The adjusting of each cylinder.But it with each cylinder or across cylinder (zylinder ü bergreifend) can adjust in principle
Each adjustment parameter in the adjustment parameter.
The advantages of multi-parameter is adjusted is: more accurate to adjust first in the rank of transient state by running actuator in phase
It is possible in section.Because air-fuel ratio in the running discharge of poisonous waste of heat engine for having a great impact, (catalyst converter is low
Do not work also when warm), which can lead to the reduction of discharge.The operation of motor heat engine uses field special herein as of the invention
It does not include following operating statuses, in the running status, catalyst converter is preheated in running temperature not yet.As long as described urge
As long as change device is preheated in running temperature not yet and/or the energy in operation according to the present invention of the torque as desired by driver
It enough shows, combustion motors are therefore just particular according to running of the inventionly.If driver wishes the igniting than being adjusted late
The more torques of the permitted torque in angle, then the angle of ignition must be adjusted early, and end of run according to the present invention.
Advantages of the present invention shows that the feature of the motor operation of the transient state exists in the motor operation of transient state first
In the target value of adjustment parameter rapidly changes.
The multi-parameter, which is adjusted, to be made in the following manner in accordance with adjustment parameter around the narrower of corresponding target value
Boundary be possibly realized: actuator can change in a coordinated fashion and therefore can reduce different adjusting paths
Laterally influence.In addition, the multi-parameter adjusting results in more stable horse in slow burning position and oil-poor air-fuel ratio
Up to operation, the more stable motor operation is needed completely in the operation of motor heat engine.The operating point is characterized in that phase
After the high variation of combustion process and correspondingly help to make motor in accordance with the narrower boundary around target value
It is stable.As a result, the multi-parameter adjusting makes it possible to reduce in the running discharge of heat engine, because of air-fuel ratio and phase
The deviation for the target value answered is reduced, and the deviation results in raised discharge.
The tune of the air-fuel ratio of the combustion characteristic of each cylinder, such as instruction average pressure, burning position or each cylinder
Section makes it possible to one in these features in each cylinder, multiple or all feature equalizations, that is to say, that
It adjusts in identical target value.This supports the stable motor operation in following regions, in this region, non-each
The adjusting of cylinder is damaged due to the certain of difference of each cylinder.It is slower that more stable motor operation allows again
Burning position, this leads to the faster heating of catalyst converter.The equalization of the air-fuel ratio of each cylinder has additionally resulted in
The reduction of evil substance discharge.
Arithmetic element according to the present invention, such as motor vehicle controller be particularly arranged for holding in program technic
Row is according to the method for the present invention.
This method is executed in the form of a computer program to be advantageous, because this causes especially few cost, is especially worked as
When controller to be performed is also used for other task and is originally therefore existing.It is suitable to be used to provide computer
The data medium of program magnetic memory, optical memory and electrical storage, such as hard disk, flash memory, EEPROM, DVD in particular
Etc..It is also possible for downloading program by computer network (internet, Intranet etc.).
Other advantage and structural scheme of the invention is obtained from the description and the appended drawings.
Detailed description of the invention
The present invention is schematically shown by means of embodiment in the accompanying drawings, and is illustrated below with reference to attached drawing,
In:
Fig. 1 shows the schematical diagram of the combustion motors with controller；
Fig. 2 schematically shows the preferred embodiment of adjuster in block diagrams, and the adjuster is advantageously used for
It executes and of the invention outputs and inputs parameter；
Fig. 3 schematically shows the preferred embodiment of the adjuster of extension in block diagrams, and the adjuster has advantageous
Of the invention output and input parameter for executing；
Fig. 4 schematically shows the preferred embodiment of adjuster in block diagrams, and the adjuster is advantageously used for
Execute it is of the invention output and input parameter, wherein the equalization for the mechanical energy that burning is converted every time occurs；
Fig. 5 schematically shows the preferred embodiment of adjuster in block diagrams, and the adjuster is advantageously used for
It executes and of the invention outputs and inputs parameter；
Fig. 6 schematically shows the preferred embodiment of adjuster in block diagrams, and the adjuster is advantageously used for
Execute it is of the invention output and input parameter, wherein the equalization of burning position occurs.
Specific embodiment
Combustion motors (internal combustion engine) 1 are shown in FIG. 1, in the combustion motors, piston 2 can be upward in cylinder 3
With move downward.The cylinder 3 is equipped with combustion chamber 4, air inlet pipe 6 and exhaust pipe 7 and is connected on the combustion chamber by valve 5.
The air inlet pipe 6 passes through exhaust gas with valve 13a, as the adjustment link for external exhaust gas recycling
Recycle valve 13 is connected with exhaust pipe 7.The valve 13a can use signal EGR and be manipulated by controller (ECU) 16.
In addition, the injection valve 8 that can be manipulated using signal TI and the spark plug 9 for utilizing signal ZW that can manipulate and burning
Room 4 is connected.Based on source point ignition method other than the internal combustion engine 1 of Fig. 1.But it is noted that the present invention is not dependent on
It the ignition method of internal combustion engine and is also well suited for for the internal combustion engine with self-ignition.
The combustion chamber 4 is equipped with cylinder pressure sensor 15, which provides in a combustion chamber
Pressure signal P.
It placed the blowing pressure sensor 18 and air throttle 12 in air inlet pipe 6, the blowing pressure sensor provides
Signal LD, the blowing pressure of the signal designation in air intake duct, the rotation position of the air throttle can be by means of signal DK
It is adjusted.Turbocharging is arranged in turbo charged motor between air quality sensor 10 and air throttle 12
The compressor of machine.
Furthermore the air inlet pipe 6 is equipped with air quality sensor 10, and exhaust pipe 7 is equipped with λ-sensor 11.Institute
It states air quality sensor 10 to measure the air quality for the fresh air for being conveyed to air inlet pipe 6, and depends on this place
Generate signal LM.λ-the sensor (λ-detector) 11 measures the oxygen content of the exhaust gas in exhaust pipe 7 and depends on
This place generates signal Lambda(λ).Exhaust equipment (not shown) including catalyst converter or ternary catalyzing unit is followed by the λ-
Detector 11.In with turbo charged motor, the turbine of turbocharger is installed after the lambda seeker.
In operation, crankshaft 14 is placed in rotary motion by driven piston, passes through its final driving motor vehicle
Wheel.
It is to be understood that the internal combustion engine with external source igniting or self-ignition can have more than one cylinder, it is described
Cylinder is allocated to identical crankshaft and identical air inlet pipe, and forms exhaust station (Abgasbank).
The controller 16 is equipped with microprocessor, which deposits in storage medium, particularly read-only
Program is stored in reservoir (Read-Only-Memory, ROM), which is arranged for executing the entire control of internal combustion engine 1
And/or it adjusts.
The controller 16 has been applied input signal thus, the input signal indicate internal combustion engine by means of sensor
The operating parameter of measurement.The controller 16 for example with air quality sensor 10, λ-sensor 11, cylinder pressure sensor 15
And the blowing pressure sensor 18 is connected.In addition, the controller 16 is connected with accelerator pedal sensor 17, the acceleration
Pedal sensor generate signal FP, the signal give can by the accelerator pedal that driver operates position and therefore provide
By driver requested torque.The controller 16 produces output signal, can by actuator using the output signal
Corresponding to desired influence internal combustion engine 1 characteristic with controlling and/or regulating.The controller 16 for example with AGR valve 13, injection
Valve 8, spark plug 9 and air throttle 12 are connected, and generate signal EGR, TI, ZW required for manipulation for them and
DK。
The controller 16 is particularly arranged for carrying out according to the method for the present invention.In preferred construction side of the invention
In case, combustion motors heat engine operation during, by 16 preferred embodiment in accordance with the present invention of controller to air throttle 12,
Injection valve 8 and spark plug 9 are manipulated.
Different embodiments of the invention, the implementation are shown by means of different adjusting signals in Fig. 2 to 6
Mode can execute in the controller, wherein identical element and output and input parameter and no longer repeatedly illustrate.Here, mesh
Scale value is indicated using footnote ref, and actual value is indicated using footnote meas.
Certain combustion characteristics, such as burning position (English: center of combustion, COC, the center of burning),
The converted mechanical energy of burning (by indicate average pressure, PMI to describe) or the air-fuel ratio (λ) during burning every time
It can fifty-fifty be determined with each cylinder or about all cylinders.
But the difference of the composition due to the filling of each cylinder, not every combustion characteristic can be simultaneously all
It is adjusted in cylinder in identical value.When differently filling, such as same air-fuel ratio is led in same burning position
Cause the different indicated works of every working cycles.It is still performed simultaneously the adjusting for different combustion characteristics under these conditions
It is required that can therefore be implemented: some feature, such as burning position are only about all cylinders and are fifty-fifty conditioned, and other
The each cylinder of feature it is adjusted.
It is therefore contemplated that different types, can implement multi-parameter adjusting in the type based on combustion characteristic, it is right
This is explained below some examples.
Fig. 2 shows the illustrative embodiment of multi-parameter adjuster C, the multi-parameter adjuster will be for that will adjust ginseng
Number: taking [rad/s] as the motor rotary speed ω of unite, air-fuel ratio λ during burning and with [° KW] (English: crank
Angle, CA, crank angle) be the burning position COC of unit in use adjusting parameter: it take [%] as the throttle position of unit
uα, with [ms] be unit injection durationAnd with [° KW] be unit angle of ignition uζIn the case where adjust to respective
In affiliated target value.The multi-parameter adjuster C itself can be designed according to traditional viewpoint and can use
The multi-parameter adjusting method known.
Controller structure basis shown here is: can fifty-fifty obtain combustion characteristic about all cylinders.Institute
Adjusting parameter is stated correspondingly to be adjusted in identical value all cylinders.Therefore existence anduniquess be used for multiple each vapour
The adjuster of cylinder.The advantages of controller structure, is: can change actuator in a coordinated fashion.
Fig. 3 shows the embodiment of the another exemplary of multi-parameter adjuster C, which is used for will be across vapour
The adjustment parameter of cylinder: motor rotary speed ωeWith the adjustment parameter of each cylinder: the air-fuel ratio λ during burningi(i: the foot of cylinder
Note；Here it is, for example, 1 to 3) and burning position COCiUsing the adjusting parameter across cylinder: throttle position uαWith each vapour
The adjusting parameter of cylinder: injecting timeAnd angle of ignition uζ,iIn the case where adjust to respectively belonging to target value on.
The premise of the controller structure is: combustion characteristic λ can be obtained with each cylinderiAnd COCi.This is allowed for
The adjusting of each cylinder, this can result in the running more stable motor operation of heat engine, because each cylinder can be reduced
Difference, and correspondingly produce more quiet motor operation.Simultaneously, actuator changes in a coordinated fashion, this
Make it possible particularly air-fuel ratio in narrower boundary around the adjusting of target value.Similarly, in this case
Existence anduniquess is used for multiple each cylinder i=1 ..., 3 adjuster C.As having illustrated, the multi-parameter adjuster
C itself can be designed according to traditional viewpoint and known multi-parameter adjusting method can be used.Such as it can be related to
The standard type adjuster of linearisation.
Specific combustion characteristic is adjusted eachly and this is fifty-fifty adjusted about multiple cylinders in other combustion characteristic
Kind of feasible program makes it possible for the adjuster of each cylinder, the adjuster however all can have identical structure.
Illustrative embodiment is illustrated below by Figure 4 and 5.Illustrate here, Fig. 4 shows preferred adjust
Figure, the adjusting schematic diagram have the instruction average pressure PMI for each cylinderiEqualization.
The controller structure being shown in FIG. 4 is used for the adjustment parameter of each cylinder: instruction average pressure PMIi, air-fuel
Compare λiAnd burning position COCiUsing the adjusting parameter across cylinder: throttle position uαWith the adjusting parameter of each cylinder: spray
Penetrate the timeAnd angle of ignition uζ,iIn the case where adjust in respective affiliated target value.The adjusting is in this case
It is divided into multiple blocks.
Adjuster C0With determining the target value for being used to indicate average pressure by revolving speed.Target value PMIrefWith each vapour
The actual value PMI of cylinderi,measThe adjusting deviation for being compared, and obtaining is conveyed to the adjuster of three each cylinders respectively
An adjuster in Cyl1, Cyl2, Cyl3.The target value can be determined for example by simple pre-control herein, be somebody's turn to do
Revolving speed is required ω by pre-controle,refIt is converted into the requirement for indicated work.
Burning position COC is as the second combustion characteristic in this case in block mean, in corresponding value as flat
Equal actual value is averaged before being used to adjust for about all cylinders.It is also contemplated that: use each burning position
Maximum value is as input in the regulators.
Air-fuel ratio λrefAs third combustion characteristic similarly with the actual value λ of each cylinderi,measIt is compared, and
Adjusting deviation out is conveyed to an adjuster in adjuster Cyl1, Cyl2, Cyl3 of three each cylinders respectively.
Air throttle is the actuator for air path, because the air throttle generally can not adjust to each cylinder, institute
With the requirement u of the adjuster of different each cylindersα,iAt it as average value uαIt is sent to before actuator in block mean
In be averaged.In stable operation, this actuator position and the effective value that is conditioned averagely resulted in each requirement
Between difference.However, this is the fact is that inappreciable, because each adjuster keeps zero in stable operation, conduct is each
A input for adjusting error.In the operation of transient state, it can easily be form differently the requirement of each adjuster, still, caused
The trend of dynamic device target value variation is identical for all cylinders, that is to say, that the trend of average value shows to obtain unusual class
It is similar to required each trend.
The advantages of controller structure, is: for all cylinders can be used same relatively simple adjuster (
It is 3 × 3 dimensions in this case).That is it can be not dependent on the number of cylinders that motor has, each cylinder uses identical
Adjuster.
The equalization of the indicated work for each working cycles realized by the controller structure results in quiet motor fortune
Row, because torque generation is equably allocated about all cylinders.
The exemplary construction of such adjuster Cyli is shown in FIG. 5.In the standard state space schematic diagram shown
In, the adjuster (oBdA) includes control matrix B, integrator ∫, observation matrix C, sytem matrix A and passes through matrix
(Durchgangsmatrix) D.
The embodiment of another exemplary is illustrated below by Fig. 5, adjusts schematic diagram it illustrates preferred, should
Schematic diagram is adjusted with the burning position COC for each cylinderiEqualization.
The controller structure being shown in FIG. 6 is used for again by the adjustment parameter across cylinder: motor rotary speed ωeWith each cylinder
Adjustment parameter: air-fuel ratio λiAnd burning position COCiUsing the adjusting parameter across cylinder: throttle position uαWith each vapour
The adjusting parameter of cylinder: injecting timeAnd angle of ignition uζ,iIn the case where adjust to respectively belonging to target value on.The adjusting
It is divided into block Cyl1 to the Cyl3 of three each cylinders herein.
The use of the controller structure be it is simple because the structure of each adjuster be likewise, and system therefore
It is simply telescopic.The adjuster of respective numbers can be simply matched in the motor of the cylinder with different number.
It is made it possible to adjusting in the burning position in all cylinders to this feasible program in same (and especially slow) value
Enough rapidly heatable catalytic converters.
Claims (13)
1. the method for running combustion motors (1) during heat engine operation,
Wherein, at least two adjustment parameters with from label motor rotary speed (ωe) parameter, air-fuel ratio (λ) of the label during burning
Parameter and mark the mode selected in the parameter of burning position (COC) to be adjusted in the range that multi-parameter is adjusted respectively
In target value,
Wherein, multi-parameter adjust range in, at least two adjusting parameters with from description air capacity parameter (uα), description spray
The amount of penetrating parameter () and description the angle of ignition parameter (uζ,i) mode selected is determined.
2. according to the method described in claim 1, wherein, the combustion motors (1) have at least two cylinders (3).
3. according to the method described in claim 2, wherein marking motor rotary speed (ωe) each cylinder of parameter or across cylinder
Ground is conditioned, and/or wherein mark air-fuel ratio (λ) during burning each cylinder of parameter or across cylinder adjusted
Section, and/or wherein mark burning position (COC) each cylinder of parameter or across cylinder be conditioned.
4. according to the method described in claim 3, wherein marking motor rotary speed (ωe) each cylinder of parameter be adjusted to phase
With target value on, and/or wherein mark air-fuel ratio (λ) during burning each cylinder of parameter be adjusted to it is identical
In target value, and/or wherein it is adjusted in identical target value to each cylinder of parameter of label burning position (COC).
5. according to the method described in claim 3, wherein marking motor rotary speed (ωe) parameter across cylinder be adjusted to target
In value, and wherein mark the air-fuel ratio (λ) during burning each cylinder of parameter be adjusted in identical target value,
And it is adjusted in identical target value with wherein marking each cylinder of parameter of burning position (COC).
6. the method according to any one of claim 2 to 5, wherein for each cylinder at least two cylinders (3)
Use the adjuster (Cyl1, Cyl2, Cyl3) of oneself.
7. according to the method described in claim 6, the ginseng of the description air capacity wherein exported from each adjuster in adjuster
Number (uα,1、uα,2、uα,3) it is settled into common adjusting parameter (uα).
8. method according to any of the preceding claims, wherein instruction average pressure (PMI) is used as the label horse
Up to revolving speed (ωe) parameter be conditioned.
9. the method according to any one of the preceding claims, wherein the reality of the parameter of label burning position (COC)
Value is determined by means of cylinder pressure sensor (15).
10. the method according to any one of the preceding claims, if be followed by combustion motors catalyst converter not yet
As long as being preheating in running temperature and/or the torque as desired by driver can be shown in the range that multi-parameter is adjusted, that
It is carried out this method.
11. arithmetic element (16), the arithmetic element are arranged for executing according to any one of the preceding claims
Method.
12. computer program, which arranges arithmetic element (16) thus: when the computer program is by the operation list
When implementing in member, execute according to claim 1 to method described in any one of 10.
13. machine readable storage medium, which has the calculating according to claim 12 being stored thereon
Machine program.
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| DE102017215566.3A DE102017215566A1 (en) | 2017-09-05 | 2017-09-05 | Method for operating an internal combustion engine during warm-up |
| DE102017215566.3 | 2017-09-05 |
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| CN107120204A (en) * | 2017-06-28 | 2017-09-01 | 上汽通用汽车有限公司 | Control method, storage medium and the electronic equipment of engine start |
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- 2017-09-05 DE DE102017215566.3A patent/DE102017215566A1/en active Pending
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- 2018-09-04 CN CN201811025699.1A patent/CN109424464A/en active Pending
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