CN104632446B - The practical straying quatity of identification internal combustion engine injector deviates the method for specified straying quatity - Google Patents
The practical straying quatity of identification internal combustion engine injector deviates the method for specified straying quatity Download PDFInfo
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- CN104632446B CN104632446B CN201410614560.6A CN201410614560A CN104632446B CN 104632446 B CN104632446 B CN 104632446B CN 201410614560 A CN201410614560 A CN 201410614560A CN 104632446 B CN104632446 B CN 104632446B
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- revolving speed
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- speed gradient
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- 238000002485 combustion reaction Methods 0.000 title claims abstract description 30
- 238000000034 method Methods 0.000 title claims abstract description 26
- 230000008859 change Effects 0.000 claims abstract description 6
- 230000010355 oscillation Effects 0.000 claims description 7
- 238000004590 computer program Methods 0.000 claims description 3
- 239000000446 fuel Substances 0.000 description 16
- 239000007921 spray Substances 0.000 description 13
- 230000000149 penetrating effect Effects 0.000 description 7
- 238000012360 testing method Methods 0.000 description 6
- 238000011156 evaluation Methods 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 241000208340 Araliaceae Species 0.000 description 2
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 2
- 235000003140 Panax quinquefolius Nutrition 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 235000008434 ginseng Nutrition 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000036299 sexual function Effects 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 230000002123 temporal effect Effects 0.000 description 1
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
- F02D41/22—Safety or indicating devices for abnormal conditions
- F02D41/221—Safety or indicating devices for abnormal conditions relating to the failure of actuators or electrically driven elements
-
- 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
- F02D41/24—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means
- F02D41/26—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means using computer, e.g. microprocessor
- F02D41/28—Interface circuits
- F02D2041/286—Interface circuits comprising means for signal processing
- F02D2041/288—Interface circuits comprising means for signal processing for performing a transformation into the frequency domain, e.g. Fourier transformation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D2200/00—Input parameters for engine control
- F02D2200/02—Input parameters for engine control the parameters being related to the engine
- F02D2200/10—Parameters related to the engine output, e.g. engine torque or engine speed
- F02D2200/1012—Engine speed gradient
-
- 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
- F02D41/10—Introducing corrections for particular operating conditions for acceleration
-
- 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
-
- 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)
- 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 a kind of methods of the deviation of the practical straying quatity and specified straying quatity of an injector of the internal combustion engine at least two injectors for identification, wherein, at least two injector is steered for exporting specified straying quatity, to accelerate the revolving speed of the internal combustion engine up to rotating speed of target from initial speed, wherein, actual speed is detected over a period and change of the actual speed in each chronomere is determined as revolving speed gradient, wherein, determine parameter relevant with revolving speed gradient and compared with a standard section, wherein, when the parameter relevant to revolving speed gradient is in except the standard section, identify the practical straying quatity of the injector at least two injector and the deviation of specified straying quatity.
Description
Technical field
The present invention relates to a kind of practical penetratings of an injector of the internal combustion engine at least two injectors for identification
Amount deviates the method for specified straying quatity and a kind of for executing the arithmetic element of this method.
Background technique
Fuel sprays into equipment can be by means of one or more injectors (also referred to as injection valve or spraying into nozzle) realization pair
The dosage of fuel needed for burning in internal combustion engine.In the case where gasoline is injected directly into and sprays into common rail, fuel directly sprays
Enter in combustion chamber.For internal combustion engine combustion quality so that consume and exhaust gas behavior, by the fuel quantity of dosage be have it is decisive
Meaning.
The characteristic for still being passed through injector itself by the fuel quantity of dosage is affected.Based on using within internal combustion engine
The sample scatter (Exemplarstreuungen) that occurs in injector and abrasion, by injector institute dosage fuel quantity (also
It is straying quatity) it can be different.
(Hochlauftest) is tested by means of starting operation, the amount of the injector of internal combustion engine being fabricated deviates can also be with
In a motor vehicle in retailer there simply without being releasably detected.Special conditions permit in the environment of plant those change
The operation type of change and it is fixed restriction, stable operating point.This is often impossible in running, because interior
The control of combustion engine must convert driving hope.Different straying quatities can be identified in the starting operation of internal combustion engine test,
Mode is that internal combustion engine is that all injector needles hold a fixation other than an injector from determining output revolving speed
Continue the specified straying quatity that the time previously given one limits to accelerate (so-called starting operation).Suppressed in the case have must
Accurate sexual function, equilibrium function and the debugging functions of the value known to the past when wanting, so that virtual condition can as far as possible significantly
Identification.Then the rotating speed of target realized is measured.The injector not being steered is crossed change (durchvariiert).If
Rotating speed of target is different or rotating speed of target deviates with the average value of other tachometer value significantly, then it is possible thereby to being inferred to reality
The deviation of straying quatity and specified straying quatity.This method still very expends the time, because needing one to start each injector
Operating.
It is desirable that the deviation of the specified straying quatity of practical straying quatity and injector can identify quickly.
Summary of the invention
It is provided according to the present invention using the feature of independent claims a kind of for identification at least two injectors
The practical straying quatity of an injector of internal combustion engine deviate the method for specified straying quatity and a kind of for executing the fortune of this method
Calculate unit.Advantageous design scheme is the theme of dependent claims and following specification.
Invention advantage
A kind of method is proposed in scope of the invention, using this method, one from initial speed to a mesh
Under the starting operation for marking revolving speed, so it is (and then more general at least two injectors than nowadays significantly more quickly can recognize that
Also there are at least two cylinders, because each cylinder is usually just with an injector) internal combustion engine an injector reality
The deviation (straying quatity mistake hereinafter) of straying quatity and specified straying quatity.The actual speed of every time quantum is known thus
Change (namely revolving speed gradient or rotating speed acceleration) and forms a parameter relevant to revolving speed gradient.It should be with revolving speed gradient phase
The parameter of pass especially can be revolving speed gradient itself.Parameter relevant with revolving speed gradient is somebody's turn to do then compared with a standard section, with
Just the straying quatity mistake of an injector is identified.Furthermore advantageously can go out spray into from the parametric inference relevant to revolving speed gradient
Measure the degree of mistake.The identification is extremely simple, if in advance by means of other method determined practical total straying quatity with it is specified
If whether total straying quatity deviates and how to deviate.If such as known practical total straying quatity is too small, is leaving standard
It is looked for downwards after section, on the contrary, if it is known that practical total straying quatity is too big, then looking for or looking for upwards after leaving standard section
Exceed (ü berschreiten) out.Total straying quatity can for example be obtained by torque or the evaluation of lambda value (Lambda-Wert)
Know.There is practical total penetrating value, air capacity (can measure by air-quantity measuring device) and lambda value (can be by drawing nurse
Measured up to sensor) between known relationship.Total straying quatity can be by these parameters for example according to air system
Physical power model (such as known by means of AS model (ASMod).
Because the torque being applied on crankshaft is proportional to practical straying quatity, (under such hypothesis: others influence ginseng
Base is constant in the relatively short duration of starting operation), so the straying quatity mistake of an injector causes torque
Interval changes.It is possible thereby to observe the oscillation of revolving speed gradient during starting operation.
One possibility of the assessment of parameter relevant to revolving speed gradient is the revolving speed gradient in instruction straying quatity mistake
Oscillation in terms of evaluation.This especially can by assess as parameter relevant to revolving speed gradient amplitude and/or frequency or
Order (Ordnung) Lai Fasheng.In principle, the method based on revolving speed has been used in the control of the penetrating between travelling the runtime
System and adjusting.But here, the operating point of internal combustion engine is not defined by fixed process.In running, the mistake that is learned
Accidentally as input be used for be directed to balance adjustment correction value directly determine and not permanent storage.In scope of the invention
In, the mistake being learned is not corrected, but is presented or is further processed to diagnose decision as measured value.
Amplitude assessment can carry out in the following way in a simple manner, that is, occur revolving speed gradient itself with it is described
The comparison in standard section.If revolving speed gradient was in except standard section on a time point, deposited in one of injector
In straying quatity mistake, in the case where following injector especially in injector, the cylinder of the injector is at such time point
On be in impulse stroke, revolving speed gradient is at the time point except standard section.
Frequency estimation can carry out in the following way in a simple manner, that is, have occurred relevant to revolving speed gradient
The frequency analysis of the trend of parameter or order analysis, wherein preferred to use Fourier analysis.Ginseng relevant to revolving speed gradient
Number is correspondingly the frequency or order of the oscillation of the revolving speed gradient during starting operation.The straying quatity due to caused by an injector
Deviation will lead to such oscillation, which has frequency more lower than spark rate.Frequency analysis is especially not based on and revolving speed
The temporal label (Auftragung) of the relevant parameter of gradient, but the label based on its angle synchronous (° KW).This
Referred to as order analysis.Preferably, with k=1 ..., N and N=cylinder number evaluate these orders k/N.There is no straying quatity mistake special
Order is not shown.
The evaluation that straying quatity deviates can the deviation as revolving speed gradient and standard section or the frequency as involved in frequency spectrum
Amplitude carry out.Then in tool, there are four describe in the example of the internal combustion engine of cylinder (N=4) for this:
If such as known practical total straying quatity is too small, 1/4 order is occurring (namely at the amplitude of 1/4 order
On order standard section) in the case where, rather than just what a injection can be identified in the case where there is 1/2 order
Device sprays into very little.The injector may then pass through revolving speed gradient itself compared with revolving speed gradient standard section (referring to Fig. 3)
It is learned in terms of one times of whereabouts (Unterschreiten).
If such as known practical total straying quatity is too small, can know in the case where there is 1/4 order and 1/2 order
It two injectors Chu not spray into very little just.If 1/4 order is more strongly shown than 1/2 order, these injector phases
It is adjacent.These injectors may then pass through revolving speed gradient itself and be learned compared with standard section in one times of thrown side.Such as
1/2 order of fruit is more strongly shown than 1/4 order, then these injectors are non-conterminous.These injectors, which may then pass through, to be turned
Fast gradient itself is learned compared with standard section in twice of thrown side.
If such as known practical total straying quatity is too high, in the case where there is 1/4 order, rather than is occurring 1/
Can identify just what a injector sprays into too many in the case where 2 orders.The injector may then pass through revolving speed gradient sheet
Body is learned at one times more than aspect compared with standard section.
If such as known practical total straying quatity is too high, can know in the case where there is 1/4 order and 1/2 order
It two injectors Chu not spray into too much just.If 1/4 order is more strongly shown than 1/2 order, these injector phases
It is adjacent.It is more than (ü at one times that these injectors, which may then pass through revolving speed gradient itself compared with standard section,
Berschreitens) aspect is learned.If 1/2 order is more strongly shown than 1/4 order, these injectors not phase
It is adjacent.These injectors may then pass through revolving speed gradient itself and be learned at twice more than aspect compared with standard section.
If such as known practical total straying quatity is correct, in the case where there is 1/4 order, rather than is occurring 1/
It can identify that just what a injector sprays into too much and just what a injector penetrating is very little in the case where 2 orders, also, this
A little injectors are adjacent.These injectors may then pass through revolving speed gradient itself compared with standard section in adjacent whereabouts and
It is learned more than aspect.
If such as known practical total straying quatity is correct, can know in the case where there is 1/4 order and 1/2 order
Just what a injector Chu not spray into too many and just what a injector sprays into very little, also, these injectors are non-conterminous.These
Injector may then pass through revolving speed gradient itself compared with standard section a thrown side and one be more than aspect
It is learned.
The present invention is especially suitable for the gasoline engines or diesel engine of car or load-carrying vehicle or commerial vehicle to survey
In test stand and during operation with the test of controller executive mode.
One arithmetic element according to the present invention, such as the controller of motor vehicle or internal combustion engine, especially program technic Shangdi
Setting is for implementing according to the method for the present invention.
The execution of the method in the form of software is also advantageous, because it causes especially small expense, especially
When the controller of implementation be also used to other tasks and therefore anyway all in the presence of.For providing the suitable of computer program
Data medium especially floppy disk, hard disk, flash memory, EEPROM, CD-ROM, DVD etc..Via computer network (internet, intranet
Deng) downloading program be also feasible.
Further advantage and design scheme of the invention is provided from the description and the appended drawings.
It is to be understood that above-mentioned and subsequent feature also to be illustrated can not only be in the combination of corresponding explanation
In, and can be applied in others combination or in the form of individual without departing from frame of the invention.
Detailed description of the invention
The present invention is schematically illustrated by the embodiment in attached drawing and is then described in detail in the case where reference attached drawing.
Attached drawing description
Fig. 1 shows the significantly schematical view of internal combustion engine, which there is fuel to spray into equipment and multiple injections
Device；
Fig. 2 shows straying quatity, revolving speed and the revolving speed gradients in the case where having the starting operation there are four fault-free injector；
Fig. 3 show straying quatity in the case where having the starting operation there are three fault-free injector and a failure injector,
Revolving speed and revolving speed gradient；
Show to Fig. 4 more details the revolving speed in the case where having the starting operation there are four fault-free injector；
It shows to Fig. 5 more details under the starting operation of fault-free injector and a failure injector there are three having
Revolving speed.
Specific embodiment
An intercept of internal combustion engine 10 is diagrammatically illustrated in Fig. 1, which includes a fuel reserve container 12, is borrowed
Help supplying system 14 and is pushed to fuel in one fuel high pressure pipeline 16 from the fuel reserve container.The fuel high pressure pipeline
16 are for example configured to common rail.The fuel high pressure pipeline 16 is connect with multiple injectors 18, these injectors can be realized: making to fire
Material is injected directly into being attached in the combustion chamber of injector 18 respectively of cylinder 20.The operation of internal combustion engine 10 and especially fuel penetrating are set
Standby operation is by an arithmetic element, and a controller 22 controls here, the fuel spray into equipment currently have supplying system 14,
Fuel high pressure pipeline 16 and injector 18.The controller 22 can be realized the detection of input value, such as the inspection of current revolving speed
Survey and can be realized the offer of output valve or the manipulation of actuator, the especially manipulation of injector 18.
Different parameters is depicted relative to the time t in x-axis in four curve graphs in Fig. 2, these parameters are rising
By previously given or detected in dynamic operating test.Specified straying quatity indicates that the revolving speed measured is indicated with 102 with 101.By turning
The revolving speed gradient that speed is derived indicates that accordingly the cylinder in impulse stroke is indicated with 104 with 103.
Starting operation test starts from time point t0, wherein internal combustion engine is in by the time with idler revolutions n0Idle running
In, the idler revolutions are by idle running straying quatity n0To maintain.Straying quatity can for example be surveyed as unit of the mg of each injector stroke
Amount.The straying quatity of a previously given definition after starting operation test starts.Internal combustion engine is from initial speed n as a result,0It sets out and adds
Speed is until a time point t1, reach rotating speed of target n at the time pointmax.It can fixedly previously given starting operation hold
The continuous time or when reaching previously given rotating speed of target starting operation can terminate.
In time point t1Terminate the penetrating, and then, the revolving speed of internal combustion engine is until a time point t3Under substantially continuous
Drop.
T at the time point3Reach idler revolutions n again0, affiliated straying quatity m is and then manipulated again0, to reduce internal combustion engine
It is flame-out.
In the embodiment shown, revolving speed gradient itself is evaluated as parameter.Revolving speed gradient move towards 103
In time point t during starting operation0And t1Between moved within a standard section 105, this illustrates injector fault-free.It is described
Standard section can for example be determined by executing the method on trouble-free motor.
The response curve figure for the operation with a faulty injector is shown in FIG. 3.Here, specified penetrating
Amount 101 corresponds to the specified straying quatity of Fig. 2, but can find that revolving speed moves towards in 202 and revolving speed gradient moves towards inclined in 203
From.Especially in time point t2It has been determined that standard section 105 is more than, so that can be with according to the cylinder 4 lighted a fire at the time point
Determine the injector failure of the cylinder 4.
Amplify in figures 4 and 5 and is illustrated in detail for t0And t1Between the starting operation stage from Fig. 2's
Revolving speed move towards 102 or the revolving speed from Fig. 3 move towards 202.Can recognize that: it is faulty move towards 202 with revolving speed it is obvious more
Strong oscillation, wherein can recognize that the obvious disturbance of every 4th oscillation.
Claims (9)
1. for identification at least two injectors (18) internal combustion engine (10) an injector (18) practical straying quatity with
The method of the deviation of specified straying quatity,
Wherein, at least two injector (18) is steered for exporting specified straying quatity, to make the internal combustion engine (10)
Revolving speed from initial speed (n0) accelerate until rotating speed of target (nmax),
Wherein, actual speed (101) are detected over a period and by actual speed (101) changing in each chronomere
Change is determined as revolving speed gradient (102,202),
Wherein it is determined that parameter relevant with revolving speed gradient (102,202) and compared with a standard section (105),
Wherein, it when the parameter relevant to revolving speed gradient (102,202) is in except the standard section (105), identifies
The deviation of the practical straying quatity and specified straying quatity of an injector (18) at least two injector (18).
2. according to the method described in claim 1, wherein, revolving speed gradient is as described relevant to revolving speed gradient (102,202)
Parameter is compared with standard section (105).
3. according to the method described in claim 2, wherein, standard section (105) include based on desired by specified straying quatity turns
Fast gradient.
4. according to the method in claim 2 or 3, wherein the injector (18) at least two injector (18)
It is learned according to following time point, at the time point, revolving speed gradient (102) is in except standard section (105).
5. method according to claim 1 to 3, wherein described in the amplitude of the order of the oscillation of revolving speed gradient is used as
Parameter relevant with revolving speed gradient (102,202) is compared with standard section.
6. according to the method described in claim 5, wherein, the cylinder number of the order and internal combustion engine (10) is relatively learned.
7. method according to claim 1 to 3, wherein the injector at least two injector (18)
(18) practical straying quatity and the size of the deviation of specified straying quatity by the parameter relevant with revolving speed gradient (102,202) Lai
It determines.
8. arithmetic element is arranged for carrying out the method according to one of preceding claims.
9. machine readable storage medium has the computer program being stored thereon, when the computer program is in an operation
When implementing on unit, which promotes arithmetic element to execute method according to claim 1 to 7.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102013222547.4 | 2013-11-06 | ||
| DE201310222547 DE102013222547A1 (en) | 2013-11-06 | 2013-11-06 | Method for detecting a deviation of an actual injection quantity from a desired injection quantity of an injector of an internal combustion engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104632446A CN104632446A (en) | 2015-05-20 |
| CN104632446B true CN104632446B (en) | 2019-06-04 |
Family
ID=52829773
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410614560.6A Active CN104632446B (en) | 2013-11-06 | 2014-11-05 | The practical straying quatity of identification internal combustion engine injector deviates the method for specified straying quatity |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN104632446B (en) |
| DE (1) | DE102013222547A1 (en) |
| IN (1) | IN2014DE02413A (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102013222711B4 (en) | 2013-11-08 | 2023-07-06 | Robert Bosch Gmbh | Method for detecting a deviation of a compression pressure of one cylinder from that of another cylinder of an internal combustion engine |
| DE102016219575B3 (en) | 2016-10-10 | 2017-11-30 | Continental Automotive Gmbh | Method and device for operating an internal combustion engine |
| DE102016219571B3 (en) * | 2016-10-10 | 2017-07-27 | Continental Automotive Gmbh | Method and device for operating an internal combustion engine |
| DE102016219572B3 (en) | 2016-10-10 | 2017-11-30 | Continental Automotive Gmbh | Method and device for operating an internal combustion engine |
| DE102016219577B4 (en) | 2016-10-10 | 2018-09-27 | Continental Automotive Gmbh | Method and device for operating an internal combustion engine |
| DE102016225100B4 (en) * | 2016-12-15 | 2020-03-19 | Robert Bosch Gmbh | Method, computing unit, computer program and storage medium for determining an injection quantity of at least one injector of a fuel metering system of an internal combustion engine of a vehicle |
| DE102016226132A1 (en) * | 2016-12-23 | 2018-06-28 | Robert Bosch Gmbh | Method for determining an injection quantity of an injector |
| DE102019003815B4 (en) * | 2019-05-29 | 2021-01-28 | Mtu Friedrichshafen Gmbh | Method for monitoring an injector for mechanical damage |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2024626A1 (en) * | 2006-05-19 | 2009-02-18 | Robert Bosch GmbH | Method of operating an internal combustion engine |
| JP2013204507A (en) * | 2012-03-28 | 2013-10-07 | Toyota Motor Corp | Control device for internal combustion engine |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102006033481A1 (en) * | 2006-07-19 | 2008-01-24 | Robert Bosch Gmbh | Operating method for an internal combustion engine with multiple cylinders switches a certain number of cylinders off from time to time |
| DE102008001606B4 (en) * | 2008-05-07 | 2019-11-21 | Robert Bosch Gmbh | Method and device for operating an internal combustion engine |
-
2013
- 2013-11-06 DE DE201310222547 patent/DE102013222547A1/en not_active Withdrawn
-
2014
- 2014-08-25 IN IN2413DE2014 patent/IN2014DE02413A/en unknown
- 2014-11-05 CN CN201410614560.6A patent/CN104632446B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2024626A1 (en) * | 2006-05-19 | 2009-02-18 | Robert Bosch GmbH | Method of operating an internal combustion engine |
| JP2013204507A (en) * | 2012-03-28 | 2013-10-07 | Toyota Motor Corp | Control device for internal combustion engine |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102013222547A1 (en) | 2015-05-07 |
| IN2014DE02413A (en) | 2015-06-26 |
| CN104632446A (en) | 2015-05-20 |
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