CN103321815A - Method and device for identifying preignition in gasoline engine - Google Patents
Method and device for identifying preignition in gasoline engine Download PDFInfo
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- CN103321815A CN103321815A CN201310240176XA CN201310240176A CN103321815A CN 103321815 A CN103321815 A CN 103321815A CN 201310240176X A CN201310240176X A CN 201310240176XA CN 201310240176 A CN201310240176 A CN 201310240176A CN 103321815 A CN103321815 A CN 103321815A
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- burning
- ignition
- chamber pressure
- incandescent ignition
- incandescent
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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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D35/00—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for
- F02D35/02—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for on interior conditions
- F02D35/023—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for on interior conditions by determining the cylinder pressure
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- 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
Abstract
The invention relates to a method for identifying preignition in a gasoline engine. The preignition occurs in a combustion chamber (1) of the gasoline engine in a way to be irrelevant to ignition through a spark plug. The method for distinguishing preignition from occasional premature ignition comprises the steps of analyzing the combustion chamber pressure (p) before/or after an ignition time point of the spark plug; and determining the preignition. Besides the current combustion chamber pressure (p), previous combustion chamber pressures (p) are also observed.
Description
Technical field
The present invention relates to a kind of method for identification petrol engine incandescent ignition, this incandescent ignition irrespectively appears in the gasoline engine combustion chamber with igniting by spark plug, and a kind of device for carrying out the method.
Background technique
In petrol engine, the burning of the Air-fuel mixing thing of supply causes the vehicle input to travel in service or keeps travelling operation.In the development of modern gasoline motor, demonstrate the petrol engine trend toward miniaturization combined with straight spray and supercharging.At this, miniaturization means that petrolic technical size, for example weight or stroke space diminish, however still reach with larger petrol engine in identical or similar power.This can realize, does not reduce power level because supercharging can reduce petrolic stroke space.Thus, petrol engine can move with higher partial load efficient in partial load in the higher load situation and can reduce fuel consumption.Yet, improve the very high thermal load that boost pressure causes gasoline engine combustion chamber in order to improve efficient.This causes incandescent ignition, and the parts of this incandescent ignition in gasoline engine combustion chamber do not reach when too high temperature and mixture are not controllably lighted thus and occur.This incandescent ignition of not expecting at first occurs after the ignition time point that triggers by spark plug and forms an additional flamjne front, and this flamjne front causes quickly after-flame of Air-fuel mixing thing.Thus, the temperature in the firing chamber further raises, thus this self ignition of not expecting always earlier begins in the mode of incandescent ignition and certain the time appear at ignition time point before.If do not interrupt this process, the burning that this incandescent ignition is formed on relative small number just causes high like this pressure and temperature afterwards, so that petrol engine is directly impaired.
This incandescent ignition can not and gasoline engine combustion chamber in other, or fire morning (Vorentflammung) that occurs differentiate.Survey the fire and incandescent ignition morning of these Wall Vibration that cause the gauge firing chamber by means of structure-borne sound sensor.In addition, also can identify incandescent ignition and early fiery by means of the revolution of analyzing crankshaft.
Summary of the invention
Thus, task of the present invention is, proposes a kind of method, can the Direct Recognition incandescent ignition by the method, and be identified in early the process of the incandescent ignition of continually strengthening along with further burn at every turn in the cylinder.
Solve thus this task according to the present invention, that is, analyze before the ignition time point of spark plug and/or the chamber pressure that occurs afterwards, be used for determining incandescent ignition, wherein, except the chamber pressure of a current burning, also observe the chamber pressure of the burning in a plurality of past.This has advantage, that is, this pressure directly inerrably provides the information from gasoline engine combustion chamber, can identify reliably incandescent ignition by means of this pressure.At this, can save the indirect analysis about solid-borne noise or revolution information.The identification of incandescent ignition can by this way with or morning fire identification separate.The individual instances of incandescent ignition show with or morning fire the same.If the observation repeated combustion just can distinguish.Between or fire morning that occurs to be some fieryly do not have a related especially individual instances with the morning that occurs before.Fire did not have omen and can change in position and intensity this morning.On the contrary, incandescent ignition shows completely specified behavior pattern.At first incandescent ignition begins during the burning that the ignition spark by spark plug begins is carried out lately.By the burning of this acceleration, the temperature in the firing chamber further rises, and consequently, the incandescent ignition that occurs in burning next time earlier begins.This behavior repetition until incandescent ignition earlier occur than the burning that is caused by the ignition spark of spark plug.Light from this time, further burning is carried out fully out of control, and in the situation that without counter-measure further to early passing.Incandescent ignition occurs more early, and petrolic pressure load and temperature load are higher.Thus, incandescent ignition demonstrates significantly from strengthening effect, this with incandescent ignition with or fire morning of appearance clearly distinguish.
Advantageously by chamber pressure, the chamber pressure of petrolic observed cylinder preferably, draw burning position according to crank angle.Can determine reliably thus, the burning of surveying is actually early fire or incandescent ignition.The incandescent ignition that in advance identification occurs makes it possible to take corresponding counter-measure, can avoid stronger incandescent ignition thus.
In a kind of configuration, in n continuous burning successively of cylinder, determine burning position, wherein, if the burning position of determining moves towards the direction of the burning position of morning more continuously with respect to the burning position of determining, then draw the conclusion of incandescent ignition between the n time main combustion period between first time main combustion period.By the burning of moving to the direction of the less ignition time point of crank angle continuously, incandescent ignition can be significantly with or flame range morning separate, described morning, fire can also occur in gasoline engine combustion chamber.Time identification by incandescent ignition can be introduced counter-measure, protects thus petrol engine to avoid infringement.This way especially can adopt when the petrol engine that has higher degree of miniaturization for better efficient exploitation.
Advantageously, burning position is proofreaied and correct according to operating point (load, revolution, ignition time point) respectively.
In a kind of modification, the quantity n of continuous burning successively is at least 2.Because the burning of incandescent ignition is moved to a direction than the ignition time point of small crankshaft corner from a large crankshaft corner forward continuously, the several times burning conclusion that just is enough to determine this trend and draws early reliably thus incandescent ignition only.
In order directly to determine incandescent ignition by chamber pressure, the burning position that is drawn by chamber pressure by the surge pressure of chamber pressure, especially determine about the position of crank angle.At this, the compression share wherein, was preferably deducted corresponding to corresponding crank angle in the position of this surge pressure from chamber pressure before determining burning position.But, also can consider temporal correspondence.Thus, the simple application that is used for the analytic combustion chamber pressure can be finished at engine controlling unit.Preferably can also be before the surge pressure of determining chamber pressure, from the chamber pressure change curve, also deduct because part (as the part of generation in petrolic inertia running (Schubverlauf)) filled and that compress and expand and produce is burnt in order to only observe.
In one embodiment, derive thermal change curve and/or integral heat change curve about crank angle by chamber pressure, determine that by this thermal change curve and/or integral heat change curve one is used for measuring of burning position.At this, explanation is at the thermal change curve of each Shaft angle institute release heat of writing music between main combustion period and determine integral heat change curve at the energy that always discharges in this time course between main combustion period, provide about the firing chamber situation and in the pressure of this formation such as the just the same reliable information of chamber pressure self.
Advantageously, based on being finished a fitting a straight line (Ausgleichsgerade) at n by the burning position of determining in the burning of asking, and drawn the conclusion of incandescent ignition by the absolute value of the slope of this fitting a straight line and/or this slope.By a fitting a straight line, can determine very simply this trend, that is, whether whether this burning move forward and be incandescent ignition at this in the direction of ignition time point.In the situation that identify early incandescent ignition, can introduce corresponding counter-measure, and reduce incandescent ignition for petrolic effect.
In a kind of configuration, if the absolute value of the slope of this fitting a straight line and/or this slope surpasses each threshold value given in advance, then identify an incandescent ignition.A kind of simple analysis of this threshold value comparison reveals and in application, can particularly advantageously processing.Reduce thus to use and expend.
In a kind of flexible program, in order to identify incandescent ignition, analyze the intercept of this fitting a straight line, especially when this intercept corresponding to one for given operating point the evening burning position the time.This intercept analysis is favourable in the time can not determining described trend clearly by fitting a straight line especially.If this intercept corresponding to one for the crank angle of ignition time point large crank angle, then think to form an incandescent ignition.
In a kind of configuration, one with respect to the crank angle of ignition time point crank angle large, burning position be identified, its mode is, with the mean value of the burning position of this burning position and the subnormal burning of m relatively or with one determined reference value is relatively in this petrolic operating point.Further simplify application in the engine controlling unit by this relatively measure.
A kind of improvement project of the present invention relates to a kind of device of incandescent ignition for the identification petrol engine, and this incandescent ignition irrespectively appears in the petrolic firing chamber with igniting by spark plug.For can be well with incandescent ignition with or flame range morning separate, there are some devices, described device receives signal from each pressure transducer of surveying pressure the petrolic cylinder chamber, and analyze before the ignition time point of spark plug and/or the chamber pressure that from this pressure transducer, occurs afterwards, be used for confirming incandescent ignition, wherein, except when the chamber pressure of also observing the burning in a plurality of past beyond the chamber pressure of front burning.This has advantage,, is being the better efficient of petrol engine when realizing higher degree of miniaturization that is, and the protection gasoline engine generator avoids because the infringement that incandescent ignition causes.In addition, can reliably incandescent ignition and flame range morning middle at gasoline engine combustion chamber or that occur be separated.
Advantageously, described device comprises a signal sensing unit and a signal analysis device, and wherein, this signal analysis device is introduced the counter-measure for the incandescent ignition of identifying.When recognizing that ferment, strong incandescent ignition, reduce petrolic power by counter-measure, in order to reduce thus the temperature that produces in the petrol engine.These counter-measures for example can for, reduce to fill, enrichment or subtract rare (abmagern) Air-fuel mixing thing, adjustment cam axle or close injection.
For diagnostic purpose, the incandescent ignition of identifying is stored in the fault memorizer and can be transferred by the workshop tester.
Description of drawings
The present invention allows a large amount of mode of executions.One of them will be illustrated in detail by means of figure illustrated in the accompanying drawings.
Accompanying drawing illustrates:
Fig. 1 is used for the device of the incandescent ignition of definite petrol engine,
The diagram of the development of Fig. 2 incandescent ignition.
Embodiment
Fig. 1 illustrates the device for the incandescent ignition of determining petrol engine 1.This petrol engine 1 that is configured to self-priming motor has four cylinders 2 in this embodiment, 3,4,5, these cylinders not shown further, at cylinder 2,3, the piston of motion is respectively by a connecting rod 6,7 in 4,5,8,9 are connected with bent axle 10 and change based on the pressure that causes by burning and drive this bent axle.Cylinder 2,3,4,5 are connected with pumping tube 11, and this pumping tube stops with respect to sucking pipe 13 by a Rectifier plate 12.Reach sucking pipe 13 for the nozzle 14 that sprays into fuel, form thus the Air-fuel mixing thing.Alternatively, petrol engine 1, especially mini engine can be designed with directly spray device, and this directly spray device is injected to fuel in each cylinder 2,3,4,5 individually by a sparger.In another flexible program, also can construct an ejecting system modification that comprises a directly spray device and a pumping tube injection apparatus.In addition, the important supercharging device that is characterised in that, this supercharging device is comprised of a turbosupercharger not shown further usually, but also can be two-stage type.
In the firing chamber of petrol engine 1, namely at cylinder 2,3, in 4,5, be furnished with respectively a pressure transducer 15a, 15b, 15c, 15d.Described pressure transducer 15a, 15b, 15c, 15d is connected with controller 16.Controller 16 is connected to again on Rectifier plate 12 and the fuel injection nozzle 14.
When Rectifier plate 12 was opened, the Air-fuel mixing logistics was in pumping tube 11 and flow to thus cylinder 2,3, in 4,5.By the spark that is triggered by spark plug not shown further, at cylinder 2,3, in succession trigger normal combustion in 4,5, this normal combustion is at cylinder 2,3, causes pressure rise in 4,5, and this pressure rise is by piston and connecting rod 6,7,8,9 are delivered on the bent axle, and make Crankshaft motion.Between main combustion period, the pressure condition in the firing chamber changes.Except described, in check normal combustion, also can occur because the burning that causes of incandescent ignition, this burning has the burning position after the ignition time point that is in after the normal combustion and is in thus normal combustion.
Figure 2 illustrates incandescent ignition, these incandescent ignitions appear in the continuous successively burning cycle, and wherein, the chamber pressure p take bar as unit draws above the crank angle φ take ° KW as unit.Incandescent ignition refers to the burning of not expecting, this burning is not the ignition spark triggering by spark plug, but triggers by overheated member (example exhaust valve, sparking-plug electrode) or by petrolic overheated combustion chamber wall surface.But the carbon distribution that forms in the firing chamber when fuel combustion also can cause this incandescent ignition.At this, the temperature the when temperature of this incandescent ignition can be lighted a fire far above Air-fuel mixing thing self.The burning (shown in the arrow F among Fig. 2) of moving to the direction of small crankshaft corner continuously of incandescent ignition and its be through repeated combustion and the effect of certainly strengthening, can make incandescent ignition and or fire morning of appearance differentiate.Because cyclic fluctuation, the burning position of the burning that triggers by spark plug is usually around mean value fluctuation in petrol engine 1, has for a constant operating point and in the situation that constant little, the trend clearly of igniting corner.
Alternatively, this burning position calculates according to the thermal change curve by the thermal change curve of deriving from chamber pressure p or integration.Determining by realizing from integral heat change curve well known in the prior art of burning position, for example by calculate maximum integral heat change curve 50% the time time point or angle position φ realize.Alternatively, also can replace 50% and use other value, for example 10% or 90%.Can be calculated for the measuring of burning position by the thermal change curve, its mode is to use peaked position or the position before peaked position or in the zone afterwards, peaked 50% of thermal change curve.Thus, analyze chamber pressure p in the cylinder 2,3,4,5 about burning position respectively, wherein, chamber pressure p is always fully analyzed in other words at high pressure phase and is fully analyzed in the zone that may burn potentially.When the operating point of petrol engine 1 changes, because spark delay also changes, should proofread and correct aspect load and the revolution at least.
The burning position of being obtained by surge pressure according to n, proofread and correct is studied, and whether has such trend, that is, burning position moves to burning position more early.At this, can be between two and 20 burnings for its burning quantity n that carries out the burning position analysis.Based on n value of burning position, determine a fitting a straight line.This fitting a straight line for example can draw by least squares estimation (Least-Squares-Schaetzung).At this, the slope of this straight line is measuring towards the trend of more early burning position.For example should observe: during n=1, burning has the crank angle φ of-35 ° of KW; During n=2, burning has the crank angle φ of-27 ° of KW; During n=3, burning has the crank angle φ of-23 ° of KW.By these crank angles and the fitting a straight line of determining thus can draw a slope.The reference value that the slope and that draws like this is stored in the controller 16 compares.If this slope surpasses reference value, then draw conclusion and introducing counter-measure at that ferment, strong incandescent ignition.But, except this slope, also can analyze the absolute value of this slope and also with one be deposited with in the controller 16 the absolute value reference value relatively.In this case, if the absolute value of slope surpasses the absolute value threshold value, then also draw the conclusion at that ferment, strong incandescent ignition.
Typically, the generation of strong incandescent ignition begins along with very late burning, that is to say that burning position has a large crank angle φ, and this crank angle is at a distance after the ignition time point of normal combustion.In follow-up burning cycle, the burning in this evening is then moved and is led to the strong incandescent ignition that should avoid to the direction of less crank angle φ.From the analysis by fitting a straight line, also can analyze the intercept of estimated fitting a straight line equation.This fitting a straight line equation then is:
Y=a * burning+b.
In the example that intercept b processes in the above corresponding to the burning position of the surge pressure during ° KW in φ=-35.Because this intercept b corresponding to very late burning, then supports and reinforcement by this intercept b in the guess of that ferment, strong incandescent ignition.At this, the burning position in evening can by from the mean value of the more last burnings of the normal combustion that is caused by spark plug relatively or by with one in controller adaptive and relatively obtaining of being stored in reference value in this controller, that be used for different operating points.
In order to carry out described analysis, controller 16 as shown in FIG. 1, has a signal sensing unit 17, and this signal sensing unit receives and is arranged in pressure transducer 15a, the 15b on the petrol engine 1, the signal of 15c, 15d.These received signals continue to be transferred to from described signal sensing unit 17 on the signal analysis device 18 of controller 16, and this signal analysis device is realized the above-mentioned implementation of described signal analysis to consist of fitting a straight line and the mode of the fitting a straight line equation of being estimated.Signal analysis device 18 is connected with an incandescent ignition recognition unit 19, this incandescent ignition recognition unit carry out with reference value in other words threshold value comparison and therefrom draw about the inference at the incandescent ignition that ferments.
If detect at the incandescent ignition that ferments by incandescent ignition recognition unit 19, then in module 20, generate counter-measure, its mode is controller 16 or control Rectifier plate 12, or control injection valve 14.At this, these counter-measures can for, reduce to fill, enrichment or subtract lean-burn empty mixture, adjustment cam axle or close injection.Reduce the power of petrol engine 1 by all these measures, the temperature in petrol engine 1 firing chamber reduces thus, and this suppresses the formation of incandescent ignition.
The described analysis that is used for incandescent ignition can advantageously always activate at controller 16 under these circumstances, namely, existence is for the very critical condition of incandescent ignition, advantageous development goes out incandescent ignition under these conditions, and is for example given on the operating point with high engine loading and high engine temperature.In the analysis of described method, possible for the workshop is to find targetedly and eliminate the reason of the focus in the firing chamber by the specific input item in the fault memorizer of controller 16.A kind of typical failure condition is, the ceramic fracture of spark plug, and then spark plug is overheated and cause incandescent ignition thus.
Claims (14)
1. method that is used for the incandescent ignition of identification petrol engine, this incandescent ignition irrespectively appears in the petrolic firing chamber (1) with igniting by spark plug, it is characterized in that, analysis is before the ignition time point of described spark plug and/or the chamber pressure that occurs afterwards (p), be used for determining incandescent ignition, wherein, except the chamber pressure (p) of a current burning, also observe the chamber pressure (p) of the burning in a plurality of past.
2. according to claim 1 method is characterized in that, draw the burning position of described chamber pressure (p) according to a crank angle (φ), preferred pin is to one of described petrol engine (1) observed cylinder (2,3,4,5).
3. according to claim 2 method, it is characterized in that, described burning position is at a cylinder (2,3,4,5) determine in n the continuous burning successively, wherein, if the burning position of determining moves towards the direction of the burning position of morning more constantly with respect to the burning position of determining, then draw the conclusion of incandescent ignition between the n time main combustion period between first time main combustion period.
4. according to claim 2 or 3 method, it is characterized in that, described burning position is proofreaied and correct according to operating point (load, revolution, ignition time point) respectively.
5. according at least one method in the claims, it is characterized in that, described continuously successively the quantity n of burning is at least 2.
6. according to one method in the claims, it is characterized in that, by the definite burning position of described chamber pressure (p) by the surge pressure of this chamber pressure (p), especially determine about the position of crank angle (φ), wherein, preferably before determining this burning position, deduction compresses share from this chamber pressure (p).
7. at least one method in 4 according to claim 1, it is characterized in that, derive a thermal change curve and/or an integral type thermal change curve about crank angle (φ) by described chamber pressure (p), determine that by this thermal change curve and/or integral type thermal change curve one is used for measuring of described burning position.
8. at least one method in 7 according to claim 3, it is characterized in that, based on being finished a fitting a straight line at n by the burning position of determining in the burning of asking, and drawn the conclusion of incandescent ignition by the absolute value of the slope of the slope of this fitting a straight line and/or this fitting a straight line.
9. according to claim 8 method is characterized in that, if the absolute value of the slope of described fitting a straight line and/or this slope surpasses each threshold value given in advance, then identifies an incandescent ignition.
10. according to claim 8 or 9 method, it is characterized in that, in order to identify incandescent ignition, analyze the intercept (b) of described fitting a straight line, especially when this intercept corresponding to one for given operating point during the burning position in evening.
11. method according to claim 10, it is characterized in that, crank angle (φ) large the crank angle with respect to described ignition time point of described burning position (φ) is identified, its mode is, with the mean value of the burning position of these burning positions and the subnormal burning of m relatively or with one determined reference value is relatively in the operating point of described petrol engine (1).
12. device that is used for the incandescent ignition of identification petrol engine, described incandescent ignition irrespectively appears in the petrolic firing chamber (1) with igniting by spark plug, it is characterized in that, there are some devices (16), described device is from a cylinder (2 of each described petrol engine of detection (1), 3,4, the pressure transducer of the pressure in the firing chamber 5) (15a, 15b, 15c, 15d) receive signal, and analyze before the ignition time point of spark plug and/or afterwards from described pressure transducer (15a, 15b, 15c, the chamber pressure (p) that occurs 15d), be used for confirming incandescent ignition, wherein, except the chamber pressure (p) of a current burning, also observe the chamber pressure (p) of the burning in a plurality of past.
13. device according to claim 12, it is characterized in that, described device (16) comprises a signal sensing unit (17) and a signal analysis device (18), and wherein, this signal analysis device (18) is introduced the counter-measure for the incandescent ignition of identifying.
14. according to claim 12 or 13 device, it is characterized in that, the incandescent ignition of identifying is stored in the fault memorizer and can be transferred by the workshop tester.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102012203489.7 | 2012-03-06 | ||
| DE102012203489.7A DE102012203489B4 (en) | 2012-03-06 | 2012-03-06 | Method and device for detecting glowing in a gasoline engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103321815A true CN103321815A (en) | 2013-09-25 |
| CN103321815B CN103321815B (en) | 2017-10-13 |
Family
ID=49029541
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310240176.XA Expired - Fee Related CN103321815B (en) | 2012-03-06 | 2013-03-04 | Method and apparatus for recognizing the incandescent ignition in petrol engine |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN103321815B (en) |
| DE (1) | DE102012203489B4 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112867856A (en) * | 2018-10-19 | 2021-05-28 | 德尔福汽车系统卢森堡有限公司 | Glow ignition detection in internal combustion engines |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4478068A (en) * | 1981-09-17 | 1984-10-23 | Robert Bosch Gmbh | Internal combustion engine knock sensing method and system |
| US4492108A (en) * | 1981-04-15 | 1985-01-08 | Robert Bosch Gmbh | Method and apparatus for recognizing irregular combustion processes in an internal combustion engine |
| US5608161A (en) * | 1993-09-08 | 1997-03-04 | Fev Motorentechnik Gmbh & Co. Kommanditgesellschaft | Method for determining the combustion ratio of a reciprocating-piston internal combustion engine |
| DE10343146A1 (en) * | 2003-09-18 | 2005-04-14 | Daimlerchrysler Ag | Detecting cylinder pressure and/or faulty ignition and/or knock in internal combustion engine with sensors involves processing signals of revolution rate sensors interacting with crankshaft and/or camshaft in real-time controller |
| DE102009008246B3 (en) * | 2009-02-06 | 2010-08-26 | Iav Gmbh Ingenieurgesellschaft Auto Und Verkehr | Method for predicting pre-ignition of fuel-air-mixture in cylinder chamber of otto combustion engine, involves finding combustion characteristics, and finding existing pre-ignition, during prior fuel conversion |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE29722031U1 (en) * | 1997-12-13 | 1999-04-08 | Jenbacher Energiesysteme Ag | System for detecting knocking in an internal combustion engine |
| DE102010003305B4 (en) * | 2010-03-25 | 2022-05-25 | Bayerische Motoren Werke Aktiengesellschaft | Prevention of irregular combustion in an internal combustion engine |
| DE102010054997B4 (en) * | 2010-12-17 | 2012-09-13 | Iav Gmbh Ingenieurgesellschaft Auto Und Verkehr | Method for detecting irregular combustion processes in an internal combustion engine |
-
2012
- 2012-03-06 DE DE102012203489.7A patent/DE102012203489B4/en not_active Expired - Fee Related
-
2013
- 2013-03-04 CN CN201310240176.XA patent/CN103321815B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4492108A (en) * | 1981-04-15 | 1985-01-08 | Robert Bosch Gmbh | Method and apparatus for recognizing irregular combustion processes in an internal combustion engine |
| US4478068A (en) * | 1981-09-17 | 1984-10-23 | Robert Bosch Gmbh | Internal combustion engine knock sensing method and system |
| US5608161A (en) * | 1993-09-08 | 1997-03-04 | Fev Motorentechnik Gmbh & Co. Kommanditgesellschaft | Method for determining the combustion ratio of a reciprocating-piston internal combustion engine |
| DE10343146A1 (en) * | 2003-09-18 | 2005-04-14 | Daimlerchrysler Ag | Detecting cylinder pressure and/or faulty ignition and/or knock in internal combustion engine with sensors involves processing signals of revolution rate sensors interacting with crankshaft and/or camshaft in real-time controller |
| DE102009008246B3 (en) * | 2009-02-06 | 2010-08-26 | Iav Gmbh Ingenieurgesellschaft Auto Und Verkehr | Method for predicting pre-ignition of fuel-air-mixture in cylinder chamber of otto combustion engine, involves finding combustion characteristics, and finding existing pre-ignition, during prior fuel conversion |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112867856A (en) * | 2018-10-19 | 2021-05-28 | 德尔福汽车系统卢森堡有限公司 | Glow ignition detection in internal combustion engines |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103321815B (en) | 2017-10-13 |
| DE102012203489A1 (en) | 2013-09-12 |
| DE102012203489B4 (en) | 2015-07-16 |
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