WO2014071900A1 - Adaption einer klopfregelung - Google Patents
Adaption einer klopfregelung Download PDFInfo
- Publication number
- WO2014071900A1 WO2014071900A1 PCT/DE2012/001099 DE2012001099W WO2014071900A1 WO 2014071900 A1 WO2014071900 A1 WO 2014071900A1 DE 2012001099 W DE2012001099 W DE 2012001099W WO 2014071900 A1 WO2014071900 A1 WO 2014071900A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- knock
- internal combustion
- combustion engine
- level
- ignition angle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/24—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means
- F02D41/2406—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means using essentially read only memories
- F02D41/2425—Particular ways of programming the data
- F02D41/2429—Methods of calibrating or learning
- F02D41/2451—Methods of calibrating or learning characterised by what is learned or calibrated
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
- F02P5/00—Advancing or retarding ignition; Control therefor
- F02P5/04—Advancing or retarding ignition; Control therefor automatically, as a function of the working conditions of the engine or vehicle or of the atmospheric conditions
- F02P5/145—Advancing or retarding ignition; Control therefor automatically, as a function of the working conditions of the engine or vehicle or of the atmospheric conditions using electrical means
- F02P5/15—Digital data processing
- F02P5/152—Digital data processing dependent on pinking
- F02P5/1522—Digital data processing dependent on pinking with particular means concerning an individual cylinder
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
- F02P5/00—Advancing or retarding ignition; Control therefor
- F02P5/04—Advancing or retarding ignition; Control therefor automatically, as a function of the working conditions of the engine or vehicle or of the atmospheric conditions
- F02P5/145—Advancing or retarding ignition; Control therefor automatically, as a function of the working conditions of the engine or vehicle or of the atmospheric conditions using electrical means
- F02P5/15—Digital data processing
- F02P5/152—Digital data processing dependent on pinking
- F02P5/1525—Digital data processing dependent on pinking with means for compensating the variation of the characteristics of the pinking sensor or of the electrical means, e.g. by ageing
-
- 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
Definitions
- the present invention relates to a method and a device for adapting a knock control of a spark-ignited internal combustion engine.
- the mixture In an Otto engine combustion under normal conditions, the mixture is specifically ignited by a spark ignition. During combustion, the flame front moves from the ignition location three-dimensionally through the combustion chamber until the mixture is burnt. In a knocking combustion, a part of the mixture ignites at hot spots of the combustion chamber by the increased
- Burning rate increases and a correspondingly higher
- Combustion pressure results.
- the resulting pressure waves and pressure oscillations propagate through the components of the internal combustion engine as structure-borne noise and are perceived as knocking.
- Burns do not necessarily cause damage, so the knock level must always be considered in conjunction with the frequency of knocking burns.
- the ignition timing is adjusted as a priority.
- knock sensors are generally used, which are arranged, for example, on the crankcase of the internal combustion engine and determine the residual body sound of the knocking combustion present there.
- the knock sensors or structure-borne noise sensors convert the structure-borne sound vibrations resulting from the knocking combustion into alternating-current signals. The thus detected structure-borne sound signals of the knock sensor become one
- Evaluation unit for example, supplied to an engine control unit and processed accordingly by filters so that dangerous knocking burns can be detected.
- knock controls are provided.
- beating burns are up to a predetermined one
- Knock strength or knock intensity allowed that do not lead to damage to the internal combustion engine Conventional knock control methods form a signal of the structure-borne sound oscillation which is averaged over several combustion cycles and represents a reference signal. To assess the combustion, a currently determined structure-borne noise signal is then compared with the previously determined reference signal. For this, a distance or a relationship between currently determined
- the reference signal is called noise and the currently determined structure-borne noise signal is a signal, the signal-to-noise ratio to be evaluated or a signal-to-noise ratio can be evaluated
- Cylinder, speed and load stored in a map and thus fixed.
- Internal combustion engine is specified between the compression and power stroke, the combustion and the tendency to knock decisively influenced, this is set later in time when detected knocking combustion.
- a knocking combustion is detected when a current signal-to-noise ratio is a corresponding one
- Detection value exceeds.
- the signal-to-noise ratio at which a change between not dangerous knocking combustion and dangerously knocking combustion occurs also referred to as knock limit.
- the knock sensor is to be arranged on the internal combustion engine so that mainly
- Combustion noise can be detected in comparison to noise.
- the structure-borne sound signal detected by the knock sensor which represents a knocking level, must be used for
- the knock control procedures must be adapted so that also scatters that are to be expected in mass production of internal combustion engines are included.
- the object of the invention is to provide an improved method for adapting a knock control and an improved device for adapting a knock control, wherein the internal combustion engine is operated at optimal efficiency at the knock limit.
- the invention provides a comparison with the prior art improved method for adapting a knock control and an improved device for adapting a knock control, wherein an improved adaptation of a knock limit occurs and the internal combustion engine is operated optimal efficiency at the knock limit.
- the advantageous invention provides an adaptable knock control system that independently adapts itself from an internal combustion engine to further model lines of an engine family as well as to individual differences of the respective internal combustion engine from a series production without additional effort.
- the process steps necessary for the method are divided into a development phase and a use phase of the internal combustion engine. During the development phase are based on an exemplary internal combustion engine
- Engine ECU accomplished that are valid for a complete series production of the corresponding internal combustion engines.
- the adaptation of the knock control is then carried out in the use phase of the respective individual internal combustion engine from this series production.
- an exemplary internal combustion engine is placed on an engine test bench and an ignition angle variation is performed for each operating point and each cylinder.
- the operating point is determined by an engine speed and an engine load.
- the engine load can, for example by a
- the interpolation points of the operating points for the engine speed and engine load are predefined according to a suitable resolution of a characteristic field.
- the Zündwinkelvariation is performed for each operating point and each cylinder by the ignition angle is adjusted starting from a current ignition angle in the late direction and then in predefinable steps back towards early until the knock limit has been briefly and significantly exceeded. Subsequently, the ignition angle is adjusted again in the direction of late.
- a predefined limit knock intensity is used, for example, by means of a cylinder pressure measurement, which describes a knock limit. Exceeding the knock limit during the
- Ignition angle adjustment serves to be able to determine the position of the knock limit as a function of the ignition angle exactly.
- the knock intensity is a measure of the extent to which a pressure curve of a dangerously knocking combustion compared to a normal combustion
- the limit knock strength is defined, which is the knock limit
- the knock strength is given as pressure.
- the structure-borne sound vibrations of the internal combustion engine are detected by at least one knock sensor and output as a knock level in the form of a voltage.
- For knock limit is then in addition to the Grenzklopfrestaurant also a Grenzklopfpegel available.
- the measured values for knock strength and knock level as a function of the ignition angle can be described or approximated by compensation functions.
- the compensation function can be carried out by the simple linear connection of the measured values as interpolation points.
- suitable mathematical functions can be approximated to the measured course of the measured values, the measured values serving as reference points.
- a gradient curve that is to say the change in the knock level as a function of the ignition angle, can be determined.
- the knock limit can thus be described by the limit knock level, the limit knock level, and additionally by a limit knock level gradient.
- Cylinder pressure measurement is determined during the Zündwinkelvariation. For the
- Limit knock gradient can be used to describe the knock limit.
- the limit knock level becomes coincident with the limit knock level gradient
- Knocking control is used during the use phase, which is valid regardless of the background noise of the internal combustion engine.
- the predefined limit knock level is used as the basic condition.
- a mean value of an operating point-specific limit knocking level representative of a series deviation can be determined, adjusted and stored in each individual engine control unit of an internal combustion engine. At the end of the development work on the test bench are in the engine control unit
- Knock level setpoint stored for knock control
- an adaptation is carried out on the basis of the values already stored in the engine control unit for the limit knock gradient gradient in order to determine an engine-specific limit knocking level for optimum operation at the knock limit. Adaptation is necessary as each individual
- Internal combustion engine has an individual signal transmission of the knocking combustion on the engine structure and the sensor to the evaluation and thus the individual internal combustion engine subject to certain tolerances and changes that affect the function and ultimately the combustion. These tolerances result from the series production, which in the production of
- the internal combustion engines can also be equipped with different units and modules. Also aging and wear phenomena pull a change of the operation of the internal combustion engines
- the adaptation is performed during the operation of the internal combustion engine over the entire service life under predetermined conditions and use intervals.
- Internal combustion engine individual and operating point individual knock level setpoint for a knock control comprises the Zündwinkelvariation for at least one cylinder during operation of the internal combustion engine to a position of the knock limit in To determine the dependence on the knock level.
- Structure-borne sound vibrations of the internal combustion engine detected by at least one knock sensor and output as a knock level.
- the measured values for knock levels as a function of the ignition angle, determined during the ignition angle variation, are mapped by a knock level compensation function. Based on this
- Knock level equalization function becomes a knock level gradient depending on
- Knock level setpoint determined by determining the knock level for which the knock level gradient corresponds to the limit knock level gradient. The knock level setpoint is then set equal to this knock level.
- the adaptation takes place during a quasi-stable
- the adaptation can additionally
- a predefined threshold of a load and speed change speed can be used. Furthermore, for the decision to adapt to forecasts of impending signal or
- the operating point-specific and possibly cylinder-individual adaptation is effected by a Zündwinkelvariation.
- the ignition angle is based on a
- Ignition sequence adjusted which corresponds to the ignition angle sequence during the application.
- a simplified ignition angle sequence or a firing angle sequence adapted to the operating point can also be used.
- a plurality of measured values of the knocking level as a function of the firing angle are available for the respective operating point, so that a profile of the knocking level over the firing angle results.
- the course is again described or approximated by a compensation function.
- the method for adaptation comprises, in particular, for the determination of an individual engine-internal and operating-point-specific one
- Knock level set point the ignition angle variation for at least one cylinder during operation of the internal combustion engine to determine a position of the knock limit depending on the knock level.
- the structure-borne sound waves of the internal combustion engine are detected by at least one knock sensor and output as a knock level.
- the measured values for knock levels as a function of the ignition angle, determined during the ignition angle variation, are mapped by a knock level compensation function.
- a knock level gradient as a function of the ignition angle is determined, and an engine-specific knock level setpoint is set equal to the knock level of a specific ignition angle at which the
- the predefined limit knock level is corrected based on the engine knock limit level.
- Knocking level required Knockpegelsollwert results according to the invention as a sum of the predefined Grenzklopfpegel and the adaptive share.
- the predefined limit knock level is always present as a fallback level.
- first adaptations to the other operating points without successful adaptation can already be interpolated or extrapolated.
- the first successful adaptation corrects the knock level setpoint of the
- a device for adapting a knock control in which a plurality of memory cells are provided which have a unique operating point assignment.
- For the adaptation of the knock control are for an operating point of
- a predefined knock level setpoint is stored in a first memory cell and a limit knock level gradient is stored in a second memory cell.
- a further memory cell may be provided in the device, in which the adapted engine-specific knocking level nominal value or the correction of the
- Knock level setpoint can be stored as an adaptive component.
- an operating point and possibly cylinder-individual status counter is increased by a predefined count value
- the interpolation points are identical to those of the adaptation parameter field, so that each adaptation value is assigned exactly its status value.
- the current adaptation result is averaged with the stored value. If the difference between the two values is outside a tolerance to be defined, the
- the adaptation is terminated and restarted. If this is the case in the second part of the adaptation sequence, the result, as described above, stored in the adaptation map.
- the status counter is increased by a count which is reduced compared to the count value of a successful adaptation.
- the start values are kept unchanged. If the behavior is repeated in further adaptation experiments, the relevant cylinder-specific adaptation point is marked as not adaptable in order to avoid further unnecessary adaptation attempts. A corresponding entry can be made in the diagnostic system.
- the Knockpegelsollwert also necessary for the knock control, the current and stable knock level during operation of the internal combustion engine as
- Voltage signal is determined as a moving average over a defined number of cyclically consecutive knock sensor signals.
- the number of signals used for the averaging is predetermined by signal-influencing parameters.
- Such parameters can be, for example, speed, load and
- a controller for knock control, a controller is used in which the knock level actual value is compared with the adapted engine-specific limit knock level.
- the control variable used is the ignition angle.
- a PID controller is used for the controller.
- the described method provides a knock control with which the individual internal combustion engine can be operated significantly closer to the knock limit and thus significantly closer to the thermodynamic optimum than conventional knock control methods. This increases the efficiency of the Internal combustion engine compared to conventional internal combustion engines significantly, which is made clear for example by a fuel economy.
- a stochastic noise can be detected by a standard deviation of the knock level operating point and cylinder selectively stored in a map.
- Threshold it is concluded that a probable stochastic noise.
- a trend detection of the noise level of the internal combustion engine through the analysis of the D component of the controller is possible.
- During the adaptation can also the
- Standard deviation of the knock level can be determined via ignition angle. If the gradient of the thus determined curve of the standard deviation of the knock level via ignition angle in a defined range exceeds a predetermined limit value, a stochastic noise is detected. Depending on the result of this
- Diagnosis can be adapted to the parameters for adaptation and control.
- a predefined gradient of the standard deviation can also be used as a termination criterion for the ignition angle adjustment of the adaptation.
- the knock sensor signal is detected, filtered and evaluated in the representative time and frequency domain.
- a time window or a crankshaft angle window is defined as a function of load and speed.
- the frequency filtering is performed by a filter having a passband width from the first to the third combustion chamber natural frequency.
- the passband bandwidth is defined by a high and lowpass frequency.
- the window is already before top dead center, the
- Ignition timing is assigned, opened to the actual knock level during adaptation can safely capture. Furthermore, pre-ignition can also be detected by comparing the actual knocking level with a corresponding threshold value and, when it is exceeded, concluding an extremely strongly knocking combustion. All information resulting from the diagnostic functions can be further processed in the engine control unit in order to further optimize the operation of the internal combustion engine.
- the knock control method according to the invention reduces the outlay for optimum sensor placement.
- the adaptation of the internal combustion engine individual Grenzklopfpegels allows a stable knock control with high control quality, based on series variations between different internal combustion engines, to
- Internal combustion engine can be operated according to stable and closer to the knock limit. Since the combustion noise changes as a function of mixture, engine temperature and other parameters, correction values can be stored for this in order to incorporate the dependency in the calculation of the setpoint.
- Oil entry into the combustion chamber or sooting caused in the combustion chamber can by means of a security function, in particular by a
- the frequency of sporadic knock events can be determined by counting. If the frequency of sporadically occurring knocking events exceeds a predefined threshold value with respect to an observation period, it is recognized that the sporadically occurring knocking events are not reflected
- the amount of the reduction can be stored, for example, as a function of the number of sporadically occurring knock events within the observation period.
- FIG. 1 a schematic representation for determining a predefined
- FIG. 2 a schematic representation of a recalculation of
- the method according to the invention for adapting a knock control involves a plurality of method steps, which relate to a development phase and to a development phase
- Engine ECU accomplished that are valid for a complete series production of the corresponding internal combustion engines.
- the adaptation of the knock control is then in the use phase of the respective internal combustion engine from this
- a voltage curve of a knocking level (1) by means of a Knock sensor determined depending on the ignition angle (2) a diagram for an application is shown, which among other things a
- Knock level profile (3) in dependence of the ignition angle (2) shows.
- the ignition angle (2) is plotted on an abscissa axis (4) and the knock level (1) on an ordinate axis (5).
- an adjustment of the ignition angle (2) is made and the corresponding knock level (1) as
- the knock level history (3) is then described by a knock level equalization function (6), here exemplified as a fourth degree polynomial.
- a knock level equalization function (6) here exemplified as a fourth degree polynomial.
- Knocking strength course (8) recorded. This can be checked if the by the
- Knock sensor measured knock level profile (3) is representative of the measured Klopforgverlauf (8).
- an associated knocking strength compensation function (9) which is determined analogously to the knock level compensation function (6), a
- predetermined knock limit be set by a Grenzklopflands (10), so that there is also a Teklopfpegel (11).
- a gradient profile (12) of the knock level profile (3) is additionally produced.
- a correction of the Whitneyklopfpegels (11) as Klopfpegelsollwert for the knock control is determined during the use phase of an individual internal combustion engine in the vehicle, as soon as the conditions are met. This will be for the individual
- FIG. 2 shows a diagram for an adaptation analogous to the diagram in FIG. 1.
- the internal combustion engine-specific knock level profile (14) is determined by an internal combustion engine-specific knock level compensation function (15). described, the derivative of an internal combustion engine individual
- combustion engine-specific knock limit represents.
- the difference between the limit knock level (11), which was advantageously determined from a sufficient sample of internal combustion engines of series production, and the engine-specific limit knock level (18) represents the correction of the limit knock level (11) to the engine-individual
- Limit knock level (18) for a knock control is stored in the engine control unit. Based on the adaptation thus determined, the knock control is performed by means of a PID controller.
- the internal combustion engine-specific limit knock level (18) can be stored redundantly to the limit knock level (11) in the engine control unit.
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
- Electrical Control Of Ignition Timing (AREA)
Abstract
Description
Claims
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE112012007121.2T DE112012007121B4 (de) | 2012-11-12 | 2012-11-12 | Adaption einer Klopfregelung |
| PCT/DE2012/001099 WO2014071900A1 (de) | 2012-11-12 | 2012-11-12 | Adaption einer klopfregelung |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/DE2012/001099 WO2014071900A1 (de) | 2012-11-12 | 2012-11-12 | Adaption einer klopfregelung |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2014071900A1 true WO2014071900A1 (de) | 2014-05-15 |
Family
ID=47500855
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/DE2012/001099 Ceased WO2014071900A1 (de) | 2012-11-12 | 2012-11-12 | Adaption einer klopfregelung |
Country Status (2)
| Country | Link |
|---|---|
| DE (1) | DE112012007121B4 (de) |
| WO (1) | WO2014071900A1 (de) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102013019738B3 (de) * | 2013-11-27 | 2015-04-02 | Iav Gmbh Ingenieurgesellschaft Auto Und Verkehr | Verfahren zum Betrieb einer Brennkraftmaschine |
| DE102015105220B3 (de) * | 2015-04-07 | 2016-09-15 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Verfahren zum Durchführen einer Klopfregelung |
| DE102017220129A1 (de) * | 2017-11-13 | 2019-05-16 | Robert Bosch Gmbh | Verfahren und Vorrichtung zur Klopfregelung einer Brennkraftmaschine |
| DE102021105528A1 (de) | 2021-03-08 | 2022-09-08 | Alexander Stahr | Verfahren zum Betrieb einer thermischen Solaranlage |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102017112265B4 (de) | 2017-06-02 | 2019-08-01 | Iav Gmbh Ingenieurgesellschaft Auto Und Verkehr | Verfahren zum Betrieb einer Brennkraftmaschine, Brennkraftmaschine und Fahrzeug mit einer Brennkraftmaschine |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0155680A2 (de) * | 1984-03-23 | 1985-09-25 | Hitachi, Ltd. | Zündzeitpunktregelung für Brennkraftmaschine |
| GB2184619A (en) * | 1985-12-02 | 1987-06-24 | Honda Motor Co Ltd | Method of detecting maximum cylinder pressure in internal combustion engine |
| EP0166033B1 (de) | 1984-05-26 | 1990-04-25 | Robert Bosch Gmbh | Vorrichtung zur Klopfregelung von Brennkraftmaschinen |
| DE19549175A1 (de) | 1995-12-30 | 1997-07-03 | Bosch Gmbh Robert | Verfahren zur Klopfregelung in Brennkraftmaschinen |
| DE10219659A1 (de) * | 2002-05-02 | 2003-12-04 | Bayerische Motoren Werke Ag | Verfahren zur Bestimmung des Zündwinkels für elektronische Steuerungen von Brennkraftmaschinen |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB8700759D0 (en) * | 1987-01-14 | 1987-02-18 | Lucas Ind Plc | Adaptive control system |
| US6497093B1 (en) * | 2001-06-20 | 2002-12-24 | Ford Global Technologies, Inc. | System and method for adjusting air-fuel ratio |
| DE102011103427A1 (de) * | 2011-06-07 | 2012-12-13 | Iav Gmbh Ingenieurgesellschaft Auto Und Verkehr | Verfahren und Vorrichtung zur Klopfregelung |
-
2012
- 2012-11-12 WO PCT/DE2012/001099 patent/WO2014071900A1/de not_active Ceased
- 2012-11-12 DE DE112012007121.2T patent/DE112012007121B4/de not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0155680A2 (de) * | 1984-03-23 | 1985-09-25 | Hitachi, Ltd. | Zündzeitpunktregelung für Brennkraftmaschine |
| EP0166033B1 (de) | 1984-05-26 | 1990-04-25 | Robert Bosch Gmbh | Vorrichtung zur Klopfregelung von Brennkraftmaschinen |
| GB2184619A (en) * | 1985-12-02 | 1987-06-24 | Honda Motor Co Ltd | Method of detecting maximum cylinder pressure in internal combustion engine |
| DE19549175A1 (de) | 1995-12-30 | 1997-07-03 | Bosch Gmbh Robert | Verfahren zur Klopfregelung in Brennkraftmaschinen |
| DE10219659A1 (de) * | 2002-05-02 | 2003-12-04 | Bayerische Motoren Werke Ag | Verfahren zur Bestimmung des Zündwinkels für elektronische Steuerungen von Brennkraftmaschinen |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102013019738B3 (de) * | 2013-11-27 | 2015-04-02 | Iav Gmbh Ingenieurgesellschaft Auto Und Verkehr | Verfahren zum Betrieb einer Brennkraftmaschine |
| DE102015105220B3 (de) * | 2015-04-07 | 2016-09-15 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Verfahren zum Durchführen einer Klopfregelung |
| DE102017220129A1 (de) * | 2017-11-13 | 2019-05-16 | Robert Bosch Gmbh | Verfahren und Vorrichtung zur Klopfregelung einer Brennkraftmaschine |
| US10995691B2 (en) | 2017-11-13 | 2021-05-04 | Robert Bosch Gmbh | Method and device for controlling knocking in an internal combustion engine |
| DE102017220129B4 (de) | 2017-11-13 | 2023-10-26 | Robert Bosch Gmbh | Verfahren und Vorrichtung zur Klopfregelung einer Brennkraftmaschine |
| DE102021105528A1 (de) | 2021-03-08 | 2022-09-08 | Alexander Stahr | Verfahren zum Betrieb einer thermischen Solaranlage |
Also Published As
| Publication number | Publication date |
|---|---|
| DE112012007121A5 (de) | 2015-07-30 |
| DE112012007121B4 (de) | 2020-08-13 |
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