DE10200937A1 - Method of ignition advance control for motor vehicle internal combustion engine involves correlating stationary operation and air charge measurement derived ignition advance values - Google Patents
Method of ignition advance control for motor vehicle internal combustion engine involves correlating stationary operation and air charge measurement derived ignition advance values Download PDFInfo
- Publication number
- DE10200937A1 DE10200937A1 DE10200937A DE10200937A DE10200937A1 DE 10200937 A1 DE10200937 A1 DE 10200937A1 DE 10200937 A DE10200937 A DE 10200937A DE 10200937 A DE10200937 A DE 10200937A DE 10200937 A1 DE10200937 A1 DE 10200937A1
- Authority
- DE
- Germany
- Prior art keywords
- dynamic
- angle value
- pilot signal
- ignition advance
- firing 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
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
- F02P5/00—Advancing or retarding ignition; Control therefor
- F02P5/04—Advancing or retarding ignition; Control therefor automatically, as a function of the working conditions of the engine or vehicle or of the atmospheric conditions
- F02P5/145—Advancing or retarding ignition; Control therefor automatically, as a function of the working conditions of the engine or vehicle or of the atmospheric conditions using electrical means
- F02P5/15—Digital data processing
- F02P5/1502—Digital data processing using one central computing unit
- F02P5/1504—Digital data processing using one central computing unit with particular means during a transient phase, e.g. acceleration, deceleration, gear change
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D2200/00—Input parameters for engine control
- F02D2200/02—Input parameters for engine control the parameters being related to the engine
- F02D2200/04—Engine intake system parameters
- F02D2200/0402—Engine intake system parameters the parameter being determined by using a model of the engine intake or its components
-
- 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
- F02D41/18—Circuit arrangements for generating control signals by measuring intake air flow
- F02D41/187—Circuit arrangements for generating control signals by measuring intake air flow using a hot wire flow sensor
-
- 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
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- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Signal Processing (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Electrical Control Of Ignition Timing (AREA)
Abstract
Description
Die vorliegende Erfindung betrifft ein Verfahren und eine Vorrichtung zur Zündwinkelberechnung bei Lastdynamik.The present invention relates to a method and a device for calculating the ignition angle under load dynamics.
Obwohl die vorliegende Erfindung auf beliebige Brennkraftmaschinen anwendbar ist, wird sie zusammen mit der ihr zugrundeliegenden Problematik insbesondere im Bezug auf eine Brennkraftmaschine für ein Kraftfahrzeug erläutert.Although the present invention is applicable to any internal combustion engine, it is put together with the underlying problem, especially in relation on an internal combustion engine for a motor vehicle explained.
Bei herkömmlichen Ottomotoren regelt im stationären Betrieb die vorhandene Klopfregelung den Zündwinkel nach spät wenn Klopfereignisse auftreten und erfasst werden. Um einen hohen Regelkomfort zu erreichen, muss diese Klopfregelung über eine gute Zündwinkel-Vorsteuerung entlastet werden. Dies geschieht bei herkömmlichen Brennkraftmaschinen im stationären Betrieb durch das Bereitstellen von Zündwinkelkennfeldern und entsprechenden Adaptionen. Im instationären Betrieb der Brennkraftmaschine führt eine Laständerung ausgehend von einem vorhandenen niedrigen Lastbereich zu Beschleunigungsklopfen, wenn lediglich eine ungenaue Zündwinkelvorsteuerung vorgenommen wird. Bei Laststeuerung über das Einlassventil wird der Zündwinkel auf der Basis der am Sammlereingang gemessenen Luftmasse berechnet. Die in den Zylinder strömende Luftmasse wird jedoch dynamisch erst später am Sammlereingang gemessen. Da für niedrige Lasten frühe und für hohe Lasten späte Zündwinkel ausgegeben werden führt dies dazu, dass bei einer Lasterhöhung immer zu frühe Zündwinkel ausgegeben werden. Die bei herkömmlichen Brennkraftmaschinen eingesetzten Funktionen zur Zündwinkel-Vorsteuerung beruhen auf einem empirisch ermittelten Zündwinkelvorhalt, welcher pauschal abhängig von einer Triggerbedingung für alle Zylinder vorgehalten wird.Regulates conventional gasoline engines in stationary Operate the existing knock control to retard the ignition angle when knocking events occur and are recorded. In order to achieve a high level of control convenience, this knock control must be via a good ignition pilot control be relieved. This happens in conventional internal combustion engines in stationary Operation by providing ignition angle maps and corresponding Adaptations. In the transient Operation of the internal combustion engine leads a load change starting from an existing low load range to acceleration knock, if only an inaccurate pilot control is made. With load control via the inlet valve the firing angle calculated on the basis of the air mass measured at the collector entrance. The one flowing into the cylinder However, air mass is only measured dynamically at the collector entrance later. As for low Loads early and for high loads late firing angle to be spent leads this means that when the load is increased, the ignition angle is always too early be issued. That with conventional internal combustion engines functions used to advance the ignition angle are based on an empirically determined ignition angle lead, which is a flat rate dependent from a trigger condition for all cylinders are held.
Die
Der Erfindung liegt die Aufgabe zugrunde, eine demgegenüber verbesserte Zündwinkelberechnung bei Lastdynamik bereitzustellen. Diese Aufgabe wird mit den Merkmalen der Ansprüche gelöst.The invention has for its object a In contrast, improved ignition angle calculation to be provided with load dynamics. This task comes with the characteristics of claims solved.
Die Erfindung geht von dem Grundgedanken aus, für die Vorsteuerung des Zündwinkels bei Lastübergängen ein eigenes dynamischen Signal zu Erzeugen. Dieses eigens erzeugte dynamische Signal wird aus dem Füllungssollwert, d.h. aus einer Interpretation der Fahrpedalstellung und der vorliegenden Momentenstruktur, und einem dynamischen Korrekturglied ermittelt. Dieses Signal entspricht somit einem dynamisch korrigierten Signal für die Vorsteuerung des Zündwinkels. Dazu wird vorzugsweise als dynamisches Korrekturglied ein variables Totzeitglied und ein variables Filter erster Ordnung verwendet. Vorzugsweise wird für einen ungedrosselten Betrieb ein anderes dynamisches Vorsteuersignal ermittelt als für einen gedrosselten Betrieb bzw. Notlauf. Dieses dynamische Vorsteuersignal modelliert dann die dynamische Luftfüllung des Zylinders.The invention is based on the basic idea for the Pilot control of the ignition angle at load transitions Generate your own dynamic signal. This specially created dynamic Signal is derived from the filling setpoint, i.e. from an interpretation of the accelerator pedal position and the existing torque structure, and a dynamic correction element is determined. This signal corresponds thus a dynamically corrected signal for the pilot control of the ignition angle. For this purpose, a variable is preferably used as a dynamic correction element Dead time element and a variable filter of the first order are used. Preferably is for unthrottled operation another dynamic pilot signal determined as for restricted operation or emergency operation. This dynamic pilot signal then models the dynamic air filling of the cylinder.
Auf der Grundlage dieses ermittelten dynamischen Vorsteuersignals wird anhand der normalen Zündwinkelkennfelder für stationären Betrieb abhängig von der aktuellen Betriebsart der Zündwinkel festgelegt.Based on this determined dynamic pilot signal is based on the normal ignition angle maps for stationary operation dependent determined by the current operating mode of the ignition angle.
Ferner erfolgt eine Berechnung des Zündwinkels auf der Grundlage der herkömmlichen Luftmassenmessung.A calculation of the firing angle based on the conventional Air mass measurement.
Abschließend wird aus den dabei bereitgestellten beiden Zündwinkeln, d.h. dem Zündwinkel, der auf Grundlage des dynamischen Vorsteuersignals und den Kennfeldern festgelegt wird, und dem Zündwinkel, der anhand der Luftmassenmessung ermittelt wird, der spätere bzw. kleinere Zündwinkel ausgewählt.In conclusion, the provided two firing angles, i.e. the firing angle, the based on the dynamic pilot signal and the maps and the ignition angle, which is determined on the basis of the air mass measurement, the later or smaller firing angles selected.
Vorzugsweise erfolgt die Ermittlung des Zündwinkels anhand des dynamischen Vorsteuersignals und die danach folgende Auswahl des späten Zündwinkels erst oberhalb einer Dynamikschwelle, die vorzugsweise drehzahlabhängig ist. Weiter bevorzugt ist die Freischaltung oberhalb der Dynamikschwelle lediglich für eine applizierbare Zeit.The determination is preferably carried out the ignition angle based on the dynamic pilot signal and the following one Selection of the late ignition angle only above a dynamic threshold, which is preferably speed-dependent. Activation above the dynamic threshold is further preferred only for an applicable time.
Eine erfindungsgemäße Vorrichtung zur Zündwinkelberechnung bei Lastdynamik weist eine Ermittlungseinrichtung zum Ermitteln eines dynamischen Vorsteuersignals aus dem Füllungssollwert und einem dynamischen Korrekturglied, eine Speichereinrichtung zum Speichern von Zündwinkelkennfeldern für den stationären Betrieb, eine Ermittlungseinrichtung zum Ermitteln des Zündwinkels auf der Grundlage einer Luftmassenmessung, und eine Vergleichseinrichtung zum Vergleichen des auf der Grundlage des dynamischen Vorsteuersignals und der Zündwinkelkennfelder ermittelten Zündwinkels mit dem aus der Luftmassenmessung berechneten Zündwinkel auf.A device according to the invention for calculating the ignition angle in the case of load dynamics, a determination device has a determination a dynamic pilot control signal from the filling setpoint and a dynamic one Correction element, a memory device for storing ignition angle maps for the stationary Operation, a determining device for determining the ignition angle based on an air mass measurement, and a comparison device for comparing that based on the dynamic pilot signal and the ignition angle maps determined ignition angle with the ignition angle calculated from the air mass measurement.
Die Vorteile der Erfindung liegen in einem besseren Komfort bei Lastdynamik (d.h. kein Klopfen und besseres Ansprechverhalten), einer einfacheren Abstimmung unter alten Umgebungsbedingungen, sowie in der Einsatzmöglichkeit für verschiedene Brennkraftmaschinen bzw. Motorbetriebsarten (d.h. ungedrosselter Betrieb, gedrosselter Betrieb oder teilgedrosselter Betrieb) durch entsprechende Variation der Parameter.The advantages of the invention are in one Better comfort with load dynamics (i.e. no knocking and better response behavior), easier coordination under old ambient conditions, as well as in the application options for different internal combustion engines or engine operating modes (i.e. unthrottled operation, throttled operation or partially throttled operation) by appropriate variation of the parameters.
Claims (9)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10200937A DE10200937A1 (en) | 2002-01-12 | 2002-01-12 | Method of ignition advance control for motor vehicle internal combustion engine involves correlating stationary operation and air charge measurement derived ignition advance values |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10200937A DE10200937A1 (en) | 2002-01-12 | 2002-01-12 | Method of ignition advance control for motor vehicle internal combustion engine involves correlating stationary operation and air charge measurement derived ignition advance values |
Publications (1)
Publication Number | Publication Date |
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DE10200937A1 true DE10200937A1 (en) | 2004-09-16 |
Family
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Family Applications (1)
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DE10200937A Ceased DE10200937A1 (en) | 2002-01-12 | 2002-01-12 | Method of ignition advance control for motor vehicle internal combustion engine involves correlating stationary operation and air charge measurement derived ignition advance values |
Country Status (1)
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DE (1) | DE10200937A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2991002A1 (en) * | 2012-05-22 | 2013-11-29 | Peugeot Citroen Automobiles Sa | Method for controlling combustion of spark-ignition engine for prevention of knocking, involves determining ignition timing of spark plug adapted to identified transitory mode, and controlling plug using determined ignition timing of plug |
CN111140419A (en) * | 2019-12-30 | 2020-05-12 | 潍柴动力股份有限公司 | Protection method and device for three-way catalyst |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3816246A1 (en) * | 1987-05-12 | 1988-12-01 | Mitsubishi Electric Corp | DEVICE FOR MONITORING THE IGNITION TIMING IN INTERNAL COMBUSTION ENGINES |
DE2757635C2 (en) * | 1977-12-23 | 1990-08-16 | Robert Bosch Gmbh, 7000 Stuttgart, De | |
DE3917905A1 (en) * | 1989-06-01 | 1990-12-06 | Siemens Ag | IC engine efficiency optimisation system - uses detected engine knock and monitored air of engine cylinder working vol to adjust ignition timing |
DE4008170A1 (en) * | 1990-03-15 | 1991-09-19 | Bosch Gmbh Robert | METHOD FOR ADAPTIVELY KNOCKING CONTROL OF AN INTERNAL COMBUSTION ENGINE |
DE4001362C2 (en) * | 1989-01-20 | 1993-05-06 | Mitsubishi Denki K.K., Tokio/Tokyo, Jp | |
WO2000043669A1 (en) * | 1999-01-21 | 2000-07-27 | Robert Bosch Gmbh | Method and device for determining the ignition point of an internal combustion engine |
-
2002
- 2002-01-12 DE DE10200937A patent/DE10200937A1/en not_active Ceased
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2757635C2 (en) * | 1977-12-23 | 1990-08-16 | Robert Bosch Gmbh, 7000 Stuttgart, De | |
DE3816246A1 (en) * | 1987-05-12 | 1988-12-01 | Mitsubishi Electric Corp | DEVICE FOR MONITORING THE IGNITION TIMING IN INTERNAL COMBUSTION ENGINES |
DE4001362C2 (en) * | 1989-01-20 | 1993-05-06 | Mitsubishi Denki K.K., Tokio/Tokyo, Jp | |
DE3917905A1 (en) * | 1989-06-01 | 1990-12-06 | Siemens Ag | IC engine efficiency optimisation system - uses detected engine knock and monitored air of engine cylinder working vol to adjust ignition timing |
DE4008170A1 (en) * | 1990-03-15 | 1991-09-19 | Bosch Gmbh Robert | METHOD FOR ADAPTIVELY KNOCKING CONTROL OF AN INTERNAL COMBUSTION ENGINE |
WO2000043669A1 (en) * | 1999-01-21 | 2000-07-27 | Robert Bosch Gmbh | Method and device for determining the ignition point of an internal combustion engine |
DE19902203A1 (en) * | 1999-01-21 | 2000-07-27 | Bosch Gmbh Robert | Determining ignition time point of internal combustion engine involves determining ignition time point from characteristic field using future load signal predicted from detected load signal |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2991002A1 (en) * | 2012-05-22 | 2013-11-29 | Peugeot Citroen Automobiles Sa | Method for controlling combustion of spark-ignition engine for prevention of knocking, involves determining ignition timing of spark plug adapted to identified transitory mode, and controlling plug using determined ignition timing of plug |
CN111140419A (en) * | 2019-12-30 | 2020-05-12 | 潍柴动力股份有限公司 | Protection method and device for three-way catalyst |
CN111140419B (en) * | 2019-12-30 | 2022-04-05 | 潍柴动力股份有限公司 | Protection method and device for three-way catalyst |
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OP8 | Request for examination as to paragraph 44 patent law | ||
8131 | Rejection |