EP1280992A1 - Method for the emergency starting of an internal combustion engine in the case of a rotational speed sensor failure - Google Patents
Method for the emergency starting of an internal combustion engine in the case of a rotational speed sensor failureInfo
- Publication number
- EP1280992A1 EP1280992A1 EP01915089A EP01915089A EP1280992A1 EP 1280992 A1 EP1280992 A1 EP 1280992A1 EP 01915089 A EP01915089 A EP 01915089A EP 01915089 A EP01915089 A EP 01915089A EP 1280992 A1 EP1280992 A1 EP 1280992A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- internal combustion
- combustion engine
- battery voltage
- starter
- dead center
- 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.)
- Granted
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
- F02D41/009—Electrical control of supply of combustible mixture or its constituents using means for generating position or synchronisation signals
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
- F02N11/00—Starting of engines by means of electric motors
- F02N11/08—Circuits or control means specially adapted for starting of engines
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
- F02N2200/00—Parameters used for control of starting apparatus
- F02N2200/02—Parameters used for control of starting apparatus said parameters being related to the engine
- F02N2200/021—Engine crank angle
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
- F02N2200/00—Parameters used for control of starting apparatus
- F02N2200/06—Parameters used for control of starting apparatus said parameters being related to the power supply or driving circuits for the starter
- F02N2200/063—Battery voltage
Definitions
- the invention relates to a ner driving for ⁇ otstart a ner internal combustion engine with 'failed speed sensor. or speed sensors to enable restricted vehicle operation. If the speed sensor has failed, "it is not possible to assign a camshaft signal from a phase sensor to the crankshaft position when the vehicle starts.
- DE 40 26 232 relates to a device for monitoring a speed sensor.
- the device contains a starter with a speed sensor, which provides an output signal depending on the speed.
- the course of the vehicle electrical system voltage is evaluated during the starting process of the nerbrennkraftkraftmaschine for fault detection. Error detection is only triggered when the typical for the starting process during the 'vehicle electrical system voltage is detected, while no output signal of the speed sensor is detected.
- a vehicle emergency running could also take place on the basis of the evaluation of the signals from a phase sensor.
- a speed signal is simulated from the phase encoder signal, with which restricted vehicle operation (limp home) is possible. If, on the other hand, the internal combustion engine is operated with camshaft adjustment, the position or position of the camshaft and thus also the position of the crankshaft at start are unknown, since the phase generator is attached to the undefined camshaft. Fluctuations in the angular range up to 40 ° crankshaft angle can occur.
- the crankshaft position can be determined if the speed sensor fails by evaluating the barterial voltage during starter operation.
- the individual cylinders of the internal combustion engine to be started be it a 4- or a 6-cylinder internal combustion engine, undergo cyclically repeated compression and decompression phases.
- the end points of the compression or decompression phases of the individual cylinders of the internal combustion engine are essentially determined by the position of the bottom dead center (UT) and top dead center (OT).
- the battery current of the energy store which feeds the starters takes on a course corresponding to the load of the starter during starter operation, resulting from the compression or decompression phases of the individual cylinders, from which.
- the locations of the respective OT's and UT's can be determined. If the starter has mastered a number of crankshaft revolutions, it is possible to reliably assign the individual OTs or UTs to the determined maxima or minima of the battery voltage curve. If the assignment of maxima and minima to the respective OT's or UT's is ensured, the injection and ignition can take place via the engine control on the corresponding cylinders of the internal combustion engine in accordance with the injection and ignition sequence defined in the engine control electronics.
- the positions of OT or UT determined from the maxima or minima of the battery voltage curve can be saved by means of a corresponding correlation table or a map, reflecting the speed / load behavior, and stored for future purposes.
- Fig. 2 shows the pulse signals of a 6-cylinder internal combustion engine during the start phase and after the start of the internal combustion engine.
- Fig. 1 shows the course of the battery voltage and the engine speed during starting and after the engine has started.
- the starting phase 1 shows the course 3 of the voltage of a motor vehicle battery during the starting phase 1 and after the start of the internal combustion engine.
- the starting phase 1 while the starter turns an internal combustion engine over a few complete revolutions of the crankshafts, takes place at the first voltage level 9 provided by the vehicle battery voltage source.
- the first voltage level 9 is considerably below that voltage level, which is generated and maintained by the generator in the internal combustion engine after the internal combustion engine has started.
- the second voltage level 10 to be supplied by the generator of the internal combustion engine which should essentially correspond to the vehicle electrical system voltage of 12 volts, is evident.
- the second voltage level is independent of the state of charge, outside temperature or internal resistance, since it is fed by the generator of the internal combustion engine and is maintained by it.
- the battery voltage curve 3 and the curve of the speed of the internal combustion engine are shown over the time axis 2, extending over a period of approximately 4.5 s according to the exemplary embodiment according to FIG. 1. It can be seen from graph 3 of the voltage during the starting phase 1 that the voltage 3 circulates in a sine wave between a minimum of 4.1-4.n and a maximum of 5.1-5.n.
- the shown maxima 5.1, 5.2, 5.3 5.n characterize the respective top dead centers OT's 12 of the 4 or more respective cylinders of an internal combustion engine to be started. Shortly before the respective top dead center 12 of a cylinder of the internal combustion engine is reached, the highest load acting on the starter occurs, since all valves on the combustion chamber are closed, the increased pressure prevails in the combustion chamber, the compression phase is complete and now the injection of fuel and accordingly in In the case of a gasoline engine, the ignition of the fuel / air mixture can take place. Injection and ignition represent a further load on the battery voltage, which is of minor importance here, however, in the present case. Between the individual maxima 5.1,
- the battery voltage of the compression and decompression on the respective cylinder has a rising edge 7 or a falling edge 8, from which signals for the positioning of the crankshaft can already be obtained.
- the starter In order to enable the crimping machine, the starter must be operated for a sufficiently long time during the starting phase. The assignment must have been made during the first combustion because there is a fault in the area From around 40 ° crankshaft angle the internal combustion engine or intake manifold may turn, but these must be avoided at all costs.
- the pulse signals of a 6-cylinder internal combustion engine emerge from the illustration according to FIG. 2, both during the starting phase 1 and during operation, for example when idling 10.
- the time axis 2 which extends over the start phase 1 and the first running phase of the internal combustion engine, covers a period of approximately 4.5 s analogously to the time axis 2 according to FIG. 1.
- the pulses on the individual cylinders 1-6 take place in a first pulse duration 16, while the pulses 17 are dimensioned much shorter in the case of a started internal combustion engine according to FIG. 2.
- top dead center 12, bottom dead center 13 with the minima 4.1 4.n or from the curve 3 of the battery voltage
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)
- Output Control And Ontrol Of Special Type Engine (AREA)
Abstract
The invention relates to a method for starting an internal combustion engine, which is equipped with a starter and with a rotational speed sensor, which furnishes an output signal as a function of the rotational speed. The invention also relates to a device which is provided for measuring the vehicle system voltage and which records the progression of the battery voltage (3) during the starting phase (1) and after the starting phase (1). During the starting phase (1) of the internal combustion engine, the position of the crankshaft is established from the progression (3) of the battery voltage during the operation of the starter.
Description
Nerfahren zum Νotstart einer Nerbrennungskräftmaschine bei DrehzahlgeberdefektNer driving to the startot start of a ner internal combustion engine with a speed sensor defect
Technisches GebietTechnical field
Die Erfindung bezieht sich auf ein Nerfahren zum Νotstart einer Nerbrennungskräftmaschine bei ' ausgefallenem Drehzahlgeber . oder Drehzahlgebern, um einen eingeschränkten Fahrzeugbetrieb zu ermöglichen. Ist der Drehzahlgeber ausgefallen, ist" beim Fahrzeugstart keine Zuordnung eines Νockenwellensignales eines Phasengebers zur Kurbelwellenstellung möglich.The invention relates to a ner driving for Νotstart a ner internal combustion engine with 'failed speed sensor. or speed sensors to enable restricted vehicle operation. If the speed sensor has failed, "it is not possible to assign a camshaft signal from a phase sensor to the crankshaft position when the vehicle starts.
Stand der TechnikState of the art
DE 40 26 232 bezieht sich auf eine Einrichtung zur Überwachung eines Drehzahlgebers. Die Einrichtung enthält einen Anlasser mit einem Drehzahlgeber, der ein Ausgangssignal in Abhängigkeit von der Drehzahl liefert. Es ist eine Norrichtung zur Messung der Bordnetzspannung und ein Steuergerät vorgesehen, in dem das Ausgangssignal des Drehzahlgebers mit der Bordnetzspannung in
Bezug gesetzt wird und eine Fehlfunktion des Drehzahlgebers erkennbar ist. Zur Fehlererkennung wird der Verlauf der Bordnetzspannung während des Anlaßvorgangs der Nerbrennungskräftmaschine ausgewertet. Eine Fehlererkennung wird nur dann ausgelöst, wenn der für den Anlaßvorgang typische Verlauf der' Bordnetzspannung erkannt wird und gleichzeitig kein Ausgangssignal des Drehzahlgebers erkannt wird.DE 40 26 232 relates to a device for monitoring a speed sensor. The device contains a starter with a speed sensor, which provides an output signal depending on the speed. There is a device for measuring the vehicle electrical system voltage and a control unit in which the output signal of the speed sensor with the vehicle electrical system voltage in Reference is made and a malfunction of the speed sensor is recognizable. The course of the vehicle electrical system voltage is evaluated during the starting process of the nerbrennkraftkraftmaschine for fault detection. Error detection is only triggered when the typical for the starting process during the 'vehicle electrical system voltage is detected, while no output signal of the speed sensor is detected.
Fällt ein Drehzahlgeber, der ein Geberrad an der Kurbelwelle einer Verbrennungskraftmaschine kontinuierlich abtastet, aus, könnte ein Fahrzeugnotlauf auch anhand der, Auswertung der Signale eines Phasengebers erfolgen. Aus dem Phasengebersignal wird ein Drehzahlsignal nachgebildet, mit dem ein eingeschränkter Fahrzeugbetrieb (limp home) möglich ist. Wird hingegen die Verbrer ungskrafmiaschine mit Νockenwellenverstellung betrieben, ist die Lage bzw. die Stellung der Nockenwelle und damit auch die Position der Kurbelwelle im Start unbekannt, da der Phasengeber an der Undefiniert positionierten Nockenwelle angebracht ist. Es können sich Schwankungen im Winkelbereich bis zu 40° Kurbelwellenwinkel einstellen.If a speed sensor that continuously scans a sensor wheel on the crankshaft of an internal combustion engine fails, a vehicle emergency running could also take place on the basis of the evaluation of the signals from a phase sensor. A speed signal is simulated from the phase encoder signal, with which restricted vehicle operation (limp home) is possible. If, on the other hand, the internal combustion engine is operated with camshaft adjustment, the position or position of the camshaft and thus also the position of the crankshaft at start are unknown, since the phase generator is attached to the undefined camshaft. Fluctuations in the angular range up to 40 ° crankshaft angle can occur.
Beim Start des Fahrzeuges ist keine Zuordnung von Nockenwellensignal und des Phasengebers zur Kurbelwellenstellung möglich. Damit kann durch die weiteren Systeme des Kraftstoffeinspritzsystems weder passend eingespritzt noch entsprechend passend gezündet werden. Ein Start der Verbrennungskraftmaschine mit Nockenwellenverstellung ist bei ausgefallenem Drehzahlgeber somit nicht möglich.When the vehicle is started, it is not possible to assign the camshaft signal and the phase encoder to the crankshaft position. This means that the other systems of the fuel injection system can neither be injected appropriately nor ignited appropriately. Starting the internal combustion engine with camshaft adjustment is therefore not possible if the speed sensor fails.
Darstellung der ErfindungPresentation of the invention
Mit der vorgeschlagenen Erfindung kann bei ausgefallenem Drehzahlgeber durch Auswertung der Barteriespannung bei Anlasserbetrieb die Kurbelwellenposition ermittelt werden.
Aufgrund der Betätigung des Anlassers, der durch eine Fahrzeugbatterie gespeist wird, kommt es in den einzelnen Zylindern der zu startenden Verbrennungskraftmaschine, sei es ein 4- oder ein 6-Zylinderverbrennungsmotor, zu sich zyklisch wiederholenden Kompressions- und Dekompressionsphasen. Die Endpunkte der Kompressions- bzw. Dekompressionsphasen der einzelnen Zylinder der Verbrennungskraftmaschine, wird im wesentlichen an die Lage des unteren Totpunktes (UT) und des oberen Totpunktes (OT) bestimmt. Der den Anlassern speisenden Batteriestrom des Energiespeichers nimmt entsprechend der Last des Anlassers beim Anlasserbetrieb, resultierend aus den Kompressions- bzw. Dekompressionsphasen der einzelnen Zylinder einen Verlauf an, aus dem. die Lagen der jeweiligen OT's und UT's bestimmbar ist. Hat der Anlasser eine Anzahl von Kurbelwellenumdrehungen bewältigt, ist eine sichere Zuordnung der einzelnen OT's bzw. UT's zu den ermittelten Maxima bzw. Minima des Batteriespannungsverlaufes möglich. Ist die Zuordnung von Maxima und Minima zu den jeweiligen OT's bzw. UT's gesichert, kann über die Motorsteuerung die Einspritzung und Zündung an den entsprechenden Zylindern der Verbrennungskraftmaschine gemäß des in der Motorsteuerelektronik festgelegten Einspritz- und Zündreihenfolge erfolgen.With the proposed invention, the crankshaft position can be determined if the speed sensor fails by evaluating the barterial voltage during starter operation. Due to the actuation of the starter, which is powered by a vehicle battery, the individual cylinders of the internal combustion engine to be started, be it a 4- or a 6-cylinder internal combustion engine, undergo cyclically repeated compression and decompression phases. The end points of the compression or decompression phases of the individual cylinders of the internal combustion engine are essentially determined by the position of the bottom dead center (UT) and top dead center (OT). The battery current of the energy store which feeds the starters takes on a course corresponding to the load of the starter during starter operation, resulting from the compression or decompression phases of the individual cylinders, from which. the locations of the respective OT's and UT's can be determined. If the starter has mastered a number of crankshaft revolutions, it is possible to reliably assign the individual OTs or UTs to the determined maxima or minima of the battery voltage curve. If the assignment of maxima and minima to the respective OT's or UT's is ensured, the injection and ignition can take place via the engine control on the corresponding cylinders of the internal combustion engine in accordance with the injection and ignition sequence defined in the engine control electronics.
Die aus den Maxima bzw. Minima des Batteriespannungsverlaufes ermittelten Lagen von OT bzw. UT lassen sich durch eine entsprechende Korrelationstabelle oder ein Kennfeld, das Drehzahl/Lastverhalten wiedergebend, abspeichern und für zukünftige Zwecke aufbewahren.The positions of OT or UT determined from the maxima or minima of the battery voltage curve can be saved by means of a corresponding correlation table or a map, reflecting the speed / load behavior, and stored for future purposes.
Zeichnungdrawing
Anhand der Zeichnung wird die Erfindung nachstehend näher erläutert.
Es zeigt:The invention is explained in more detail below with the aid of the drawing. It shows:
Fig. 1 den Verlauf der Batteriespannung und der Motordrehzahl während des Betriebes des Anlassers und nachdem die Verbrennungskraftmaschine angesprungen ist,1 shows the profile of the battery voltage and the engine speed during the operation of the starter and after the internal combustion engine has started,
Fig. 2 die Impulssignale einer 6-Zylinder- Verbrennungskraftmaschine während der Startphase und nach dem Start der Verbrennungskraftmaschine.Fig. 2 shows the pulse signals of a 6-cylinder internal combustion engine during the start phase and after the start of the internal combustion engine.
Ausfi hrungsvariantenDesign variants
Fig. 1 zeigt den Verlauf der Batteriespannung und der Motordrehzahl während des Anlassens und nachdem der Motor angesprungen ist.Fig. 1 shows the course of the battery voltage and the engine speed during starting and after the engine has started.
Aus dem Diagramm -gemäß Fig. 1 geht der Verlauf 3 der Spannung einer Kraftfahrzeugbatterie während der Startphase 1 und nach dem Start der Verbrer ungskraftmaschine hervor. Die Startphase 1, während der Anlasser eine Verbrernungskraftmäschine diese über wenige vollständige Umdrehungen der Kurbelwellen durchdreht, erfolgt auf dem von der Spannungsquelle Kfz-Batterie bereitgestellten ersten Spannungsniveau 9. Je nach Außentemperatur, Innenwiderstand und Ladezustand der Kraftfahrzeugbatterie kann . das erste Spannungsniveau 9 erheblich unter demjenigen Spannungsniveau liegen, was nach dem erfolgten Start der Verbrennungskraftmaschine durch den Generator in der Verbrennungskraftmaschine erzeugt und aufrechterhalten wird. Aus dem Verlauf 3 der Spannung nach der Startphase, die sich asympthotisch einem Grenzwert nähert, geht das vom Generator der Verbrennungskraftmasch ne zu liefernde zweite Spannungsniveau 10, welches im wesentlichen der Bordnetzspannung von 12 Volt entsprechen sollte, hervor. Das zweite Spannungsniveau ist unabhängig vom Ladezustand, Außentemperatur bzw. Innenwiderstand, da es vom Generator der Verbrennungskraftmaschine gespeist und durch diesen aufrechterhalten wird.
Über der Zeitachse 2, sich erstreckend über eine Zeitspanne von ca. 4,5 s gemäß des Ausführungsbeispieles nach Fig. 1, ist der Batteriespannungsverlauf 3 und der Verlauf der Drehzahl der Verbrennungskraftmaschine dargestellt. Aus den Graphen 3 der Spannung während der Startphase 1 geht hervor, daß die Spannung 3 sinuswellenförmig zwischen minimal 4.1 - 4.n und maximal 5.1 - 5.n umläuft.1 shows the course 3 of the voltage of a motor vehicle battery during the starting phase 1 and after the start of the internal combustion engine. The starting phase 1, while the starter turns an internal combustion engine over a few complete revolutions of the crankshafts, takes place at the first voltage level 9 provided by the vehicle battery voltage source. Depending on the outside temperature, internal resistance and state of charge of the motor vehicle battery. the first voltage level 9 is considerably below that voltage level, which is generated and maintained by the generator in the internal combustion engine after the internal combustion engine has started. From the course 3 of the voltage after the start phase, which approaches an asymptotic limit, the second voltage level 10 to be supplied by the generator of the internal combustion engine, which should essentially correspond to the vehicle electrical system voltage of 12 volts, is evident. The second voltage level is independent of the state of charge, outside temperature or internal resistance, since it is fed by the generator of the internal combustion engine and is maintained by it. The battery voltage curve 3 and the curve of the speed of the internal combustion engine are shown over the time axis 2, extending over a period of approximately 4.5 s according to the exemplary embodiment according to FIG. 1. It can be seen from graph 3 of the voltage during the starting phase 1 that the voltage 3 circulates in a sine wave between a minimum of 4.1-4.n and a maximum of 5.1-5.n.
Ein jeweiliges Maximum 5.1, 5.2, 5.3 5.n fällt mit einem unteren TotpunktA respective maximum 5.1, 5.2, 5.3 5.n falls with a bottom dead center
UT 13 zusammen, da dort die Last für den Anlasser am geringsten ist.UT 13 together because the load for the starter is lowest there.
Die dargestellten Maxima 5.1, 5.2, 5.3 5.n charakterisieren die jeweiligen oberen Totpunkte OT's 12 der 4 oder mehr jeweiligen Zylinder einer zu startenden Verbrennungskraftmaschine. Kurz vor Erreichen des jeweiligen oberen Totpunktes 12 eines Zylinders der Verbrennungskraftmaschine tritt die auf den Anlasser wirkende höchste Belastung auf, da alle Ventile am Brennraum geschlossen sind, im Brennraum der erhöhte Druck herrscht, die Kompressionsphase abgeschlossen ist und nunmehr die Einspritzung von Kraftstoff und demnach im Falle eines Ottomotores, die Zündung des Kraftstoff/Luftgeschmisches erfolgen kann. Einspritzung und Zündung stellen eine weitere Belastung der Batteriespannung dar, der jedoch hier im' orliegenden Falle von untergeordneter Bedeutung ist. Zwischen den einzelnen Maxima 5.1,The shown maxima 5.1, 5.2, 5.3 5.n characterize the respective top dead centers OT's 12 of the 4 or more respective cylinders of an internal combustion engine to be started. Shortly before the respective top dead center 12 of a cylinder of the internal combustion engine is reached, the highest load acting on the starter occurs, since all valves on the combustion chamber are closed, the increased pressure prevails in the combustion chamber, the compression phase is complete and now the injection of fuel and accordingly in In the case of a gasoline engine, the ignition of the fuel / air mixture can take place. Injection and ignition represent a further load on the battery voltage, which is of minor importance here, however, in the present case. Between the individual maxima 5.1,
5.2, 5.3 5.n und den Minima 4.1, 4.2 4.n weist der Verlauf 3 der5.2, 5.3 5.n and the minima 4.1, 4.2 4.n shows the course 3 of the
Batteriespannung der Kompression und der Dekompression am jeweiligen Zylinder entsprechende steigende Flanke 7, bzw. eine fallende Flanke 8 auf, aus dem bereits Signale für die Positonierung der Kurbelwelle gewonnen werden können.The battery voltage of the compression and decompression on the respective cylinder has a rising edge 7 or a falling edge 8, from which signals for the positioning of the crankshaft can already be obtained.
Um eine Zuordnung der einzelnen Maxima 5.1 5.n bzw. der Minima 4.1 4.n zwischen den einzelnen Zylindern der anzulassendenTo assign the individual maxima 5.1 5.n or the minima 4.1 4.n between the individual cylinders of the engine to be started
Verbrermungskrafünaschine zu ermöglichen, muß die Betätigung des Anlassers während der Startphase für eine ausreichend lange Zeitphase erfolgen. Bei der ersten Verbrennung muß die Zuordnung erfolgt sein, da bei Fehlem im Bereich
von etwa 40° Kurbelwellenwinkel Rückdreher der Verbrer ungskraftmaschine oder Saugrohrpatscher auftreten können, die jedoch unbedingt zu vermeiden sind.In order to enable the crimping machine, the starter must be operated for a sufficiently long time during the starting phase. The assignment must have been made during the first combustion because there is a fault in the area From around 40 ° crankshaft angle the internal combustion engine or intake manifold may turn, but these must be avoided at all costs.
Aus der Darstellung gemäß Fig. 2 gehen die Impulssignale einer 6-Zylinder- Verbrennungskraftmaschine hervor, sowohl während der Startphase 1 als auch im Betrieb, beispielsweise im Leerlauf 10 - hervor.The pulse signals of a 6-cylinder internal combustion engine emerge from the illustration according to FIG. 2, both during the starting phase 1 and during operation, for example when idling 10.
Die Zeitachse 2, sich über die Startphase 1 und die erste Laufphase der Verbrennungskraftmaschine erstreckend, überdeckt analog zur Zeitachse 2 gemäß Fig. 1 einen Zeitraum von etwa 4,5 s. Während der Startphase 1 der 6-Zylinder- Verbrennungskraftmaschine erfolgen die Pulse an den einzelnen Zylindern 1-6 in einer ersten Impulsdauer 16, während die Impulse 17 bei einer angesprungenen Verbrennungskraftmaschine gemäß Fig. 2 wesentlich kürzer bemessen ist.The time axis 2, which extends over the start phase 1 and the first running phase of the internal combustion engine, covers a period of approximately 4.5 s analogously to the time axis 2 according to FIG. 1. During the starting phase 1 of the 6-cylinder internal combustion engine, the pulses on the individual cylinders 1-6 take place in a first pulse duration 16, while the pulses 17 are dimensioned much shorter in the case of a started internal combustion engine according to FIG. 2.
Die aus dem Verlauf 3 der Batteriespannung sich ergebende Korrelation von oberen Totpunkt 12, unteren Totpunkt 13 mit den Minima 4.1 4.n bzw.The correlation of top dead center 12, bottom dead center 13 with the minima 4.1 4.n or from the curve 3 of the battery voltage
Maxima 5.1 5.n erfolgt während des Anlassens derMaxima 5.1 5.n occurs during the starting of the
Verbrennungskraftmaschine und" läßt sich beispielsweise eines Drehzahl/Lastkennfeldes archivieren und für spätere Zwecke wiederverwenden oder kann in tabellarischer Form im Speicher beispielsweise einem Ringpuffer einer Steuerelektronik für die Verbrennungskraftmaschine abgelegt werden.
Internal combustion engine and "can be archived, for example, of a speed / load map and reused for later purposes, or can be stored in tabular form in the memory, for example, a ring buffer of control electronics for the internal combustion engine.
BezugszeichenlisteLIST OF REFERENCE NUMBERS
1 Startphase Anlasserbetrieb1 Start phase starter operation
2 Zeitachse2 timeline
3 Batteriespannungsverlauf3 Battery voltage curve
4.1-4.n Minima4.1-4.n minima
5.1-5.n Maxima5.1-5.n maxima
6 Wendepunkt6 turning point
7 steigende Flanke7 rising edge
8 fällende Flanke8 falling edge
9 erstes Spannungsniveau9 first voltage level
10 Spannungsniveau stationärer Betrieb10 voltage level stationary operation
11 erste Verbrennung11 first combustion
12 OT12 OT
13 UT13 subtitles
14 Drehzahlverlauf14 speed curve
15 Zündabfolge15 firing order
16 Zylinder VKM16 cylinder VKM
17 Impulsdauer Anlasserbetrieb pro Zylinder17 Pulse duration starter operation per cylinder
18 Impulsdauer Normalbetrieb VKM
18 Pulse duration normal operation VKM
Claims
1. Verfahren zum Starten einer Verbrennungskraftmaschine, die mit einem Anlasser, einem Drehzahlgeber, der ein Ausgangssignal in Abhängigkeit von der Drehzahl liefert, ausgestattet ist und ferner eine Vomchtung zur Messung der Batteriespannung vorgesehen ist, die den Verlauf der Batteriespannung (3) während der Startphase (1) und nach der Startphase (1) aufnimmt, dadurch gekennzeichnet, daß während der Startphase (1) der Verbrennungskraftmaschine im Anlasserbetrieb aus dem Verlauf der Batteriespannung (3) die Kurbelwellenposition bestimmt wird.1. A method for starting an internal combustion engine, which is equipped with a starter, a speed sensor that delivers an output signal as a function of the speed, and a device for measuring the battery voltage is provided, which shows the profile of the battery voltage (3) during the starting phase (1) and after the start phase (1), characterized in that the crankshaft position is determined from the course of the battery voltage (3) during the start phase (1) of the internal combustion engine in starter operation.
2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß während des Anlasserbetriebes (1) die Maxima (5.1 bis 5;n) und die Minima (4.1 bis 4.n) des Verlaufes (3) der Batteriespannung ermittelt werden.2. The method according to claim 1, characterized in that the maxima (5.1 to 5; n) and the minima (4.1 to 4.n) of the curve (3) of the battery voltage are determined during starter operation (1).
3. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß aus dem- Verlauf der Batteriespannung (3) die Lage des oberen Totpunktes (12) und des unteren Totpunktes (13) der Zylinder der Verbrennungskraftmaschine bestimmt wird. .3. The method according to claim 1, characterized in that the position of the top dead center (12) and the bottom dead center (13) of the cylinder of the internal combustion engine is determined from the course of the battery voltage (3). ,
4. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß der Anlasser der Verbrennungskraftmaschine während der Startphase (1) der Verbrennungskrafαnaschine solange betätigt wird, bis eine sichere Zuordnung der Maxima (5.1 bis 5.n) und Minima (4.1 bis 4.n) zum oberen Totpunkt (12) bzw. unteren Totpunkt (13) der Zylinder der Verbrennungskraftmaschine möglich ist. 4. The method according to claim 1, characterized in that the starter of the internal combustion engine is actuated during the start phase (1) of the internal combustion engine until a safe assignment of the maxima (5.1 to 5.n) and minima (4.1 to 4.n) to top dead center (12) or bottom dead center (13) of the cylinder of the internal combustion engine is possible.
5. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß der Batteriespannungsverlauf (3) im Anlasserbetrieb auf einem ersten außentemperaturabhängigen Spannungsniveau (9) erfolgt. • 5. The method according to claim 1, characterized in that the battery voltage curve (3) takes place in starter mode at a first outside temperature-dependent voltage level (9). •
6. Verfahren gemäß einem oder mehreren der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Korrelation vom oberen Totpunkt OT (12) bzw. unteren Totpunkt UT (13) der Zylinder einer Verbrennungskraftmaschine zu den Maxima (5.1 bis 5.n) bzw. Minima (4.1 bis 4.n) des Verlaufes (3) der Batteriespannung der6. The method according to one or more of the preceding claims, characterized in that the correlation of the top dead center OT (12) or bottom dead center UT (13) of the cylinders of an internal combustion engine to the maxima (5.1 to 5.n) or minima ( 4.1 to 4.n) of the course (3) of the battery voltage
Verbrennungskraftmaschine in einem Drehzahl/Lastkennfeld aufgenommen und abgespeichert werden.Internal combustion engine can be recorded and stored in a speed / load map.
7. Verfahren nach einem oder mehreren der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß nach erfolgter Zuordnung der Lage von7. The method according to one or more of the preceding claims, characterized in that after the assignment of the position of
OT (12) und UT (13) der Zylinder einer Verbrennungskraftmaschine zu den ermittelten Maxima (5.1 bis 5.n) und Minima (4.1 bis 4.n) des Verlaufes (3) der Batteriespannung eine erste Einspritzung und Zündung (11) erfolgt.TDC (12) and TDC (13) of the cylinders of an internal combustion engine for the determined maxima (5.1 to 5.n) and minima (4.1 to 4.n) of the course (3) of the battery voltage, a first injection and ignition (11) takes place.
Verfahren nach einem oder mehreren der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der Verlauf der Batteriespannung zur Diagnose bzw. Überwachung des Drehzahl- bzw. Kurbelwellengebers und/oder des Phasen- bzw. Nockenwellengebers benutzt wird. Method according to one or more of the preceding claims, characterized in that the course of the battery voltage is used for diagnosis or monitoring of the speed or crankshaft encoder and / or the phase or camshaft encoder.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10021645 | 2000-05-04 | ||
| DE10021645A DE10021645A1 (en) | 2000-05-04 | 2000-05-04 | Procedure for the emergency start of an internal combustion engine in the event of a speed sensor defect |
| PCT/DE2001/000856 WO2001083981A1 (en) | 2000-05-04 | 2001-03-07 | Method for the emergency starting of an internal combustion engine in the case of a rotational speed sensor failure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1280992A1 true EP1280992A1 (en) | 2003-02-05 |
| EP1280992B1 EP1280992B1 (en) | 2007-05-02 |
Family
ID=7640712
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP01915089A Expired - Lifetime EP1280992B1 (en) | 2000-05-04 | 2001-03-07 | Method for the emergency starting of an internal combustion engine in the case of a rotational speed sensor failure |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US6722190B2 (en) |
| EP (1) | EP1280992B1 (en) |
| JP (1) | JP2003532023A (en) |
| KR (1) | KR20020031154A (en) |
| CN (1) | CN1202355C (en) |
| DE (2) | DE10021645A1 (en) |
| RU (1) | RU2267644C2 (en) |
| WO (1) | WO2001083981A1 (en) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102006039112A1 (en) * | 2006-08-21 | 2008-02-28 | Robert Bosch Gmbh | Method for determining the speed of a starter |
| KR100764507B1 (en) * | 2006-11-24 | 2007-10-09 | 현대자동차주식회사 | Starter motor control apparatus for vehicle and method thereof |
| DE102009029207A1 (en) * | 2009-09-04 | 2011-03-10 | Robert Bosch Gmbh | Method and apparatus for determining a starter speed of a starter of a starter system |
| FR2964157B1 (en) * | 2010-09-01 | 2013-04-12 | Peugeot Citroen Automobiles Sa | DEVICE AND METHOD FOR PROTECTING A HIGH ROTATION INERTIA STARTER |
| FR2995939B1 (en) * | 2012-09-21 | 2018-11-16 | Continental Automotive France | METHOD FOR ESTIMATING THE REGIME OF AN ENGINE IN A PREDETERMINED POSITION |
| DE102013014351A1 (en) * | 2013-08-28 | 2015-03-05 | Liebherr-Werk Nenzing Gmbh | Method for determining the total drag torque of the drive train of an internal combustion engine and device therefor |
| DE102014206182A1 (en) * | 2014-04-01 | 2015-10-01 | Robert Bosch Gmbh | Method for determining a crankshaft position of an internal combustion engine |
| JP6933919B2 (en) * | 2017-06-06 | 2021-09-08 | 日立Astemo株式会社 | Electronic control device |
| KR102323407B1 (en) * | 2017-09-08 | 2021-11-05 | 현대자동차주식회사 | Starting control method for a vehicle in cam shaft position sensor failure |
| DE102018200526A1 (en) * | 2018-01-15 | 2019-07-18 | Robert Bosch Gmbh | Method for detecting a starting mode of an internal combustion engine |
| JP2019162950A (en) * | 2018-03-20 | 2019-09-26 | 株式会社デンソー | Engine control system |
| US11727306B2 (en) | 2020-05-20 | 2023-08-15 | Bank Of America Corporation | Distributed artificial intelligence model with deception nodes |
| US11436534B2 (en) | 2020-05-20 | 2022-09-06 | Bank Of America Corporation | Distributed artificial intelligence model |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3310920A1 (en) * | 1983-03-25 | 1984-09-27 | Robert Bosch Gmbh, 7000 Stuttgart | METHOD AND DEVICE FOR DETERMINING THE INJECTION TIME OF INTERNAL COMBUSTION ENGINES DURING THE STARTING PROCESS |
| JPH0733983B2 (en) * | 1986-09-22 | 1995-04-12 | 日産自動車株式会社 | Vehicle failure diagnosis device |
| US4955336A (en) * | 1988-04-29 | 1990-09-11 | Chrysler Corporation | Circuit for determining the crank position of an ignition switch by sensing the voltage across the starter relay control and holding an electronic device in a reset condition in response thereto |
| DE4026232C2 (en) * | 1990-08-18 | 2003-09-04 | Bosch Gmbh Robert | Device for monitoring a speed sensor |
| JP3716947B2 (en) * | 1996-04-12 | 2005-11-16 | 本田技研工業株式会社 | Cylinder discrimination device for internal combustion engine |
| JP3653190B2 (en) * | 1999-01-22 | 2005-05-25 | 三菱電機株式会社 | Electronic control device for internal combustion engine |
| US6438487B1 (en) * | 2001-02-21 | 2002-08-20 | Ford Global Technologies, Inc. | Method and system for determining the operational state of a vehicle starter motor |
-
2000
- 2000-05-04 DE DE10021645A patent/DE10021645A1/en not_active Ceased
-
2001
- 2001-03-07 US US10/030,643 patent/US6722190B2/en not_active Expired - Fee Related
- 2001-03-07 DE DE50112445T patent/DE50112445D1/en not_active Expired - Lifetime
- 2001-03-07 KR KR1020027000046A patent/KR20020031154A/en not_active Application Discontinuation
- 2001-03-07 JP JP2001580571A patent/JP2003532023A/en active Pending
- 2001-03-07 RU RU2002102235/06A patent/RU2267644C2/en not_active IP Right Cessation
- 2001-03-07 WO PCT/DE2001/000856 patent/WO2001083981A1/en active IP Right Grant
- 2001-03-07 EP EP01915089A patent/EP1280992B1/en not_active Expired - Lifetime
- 2001-03-07 CN CNB018010733A patent/CN1202355C/en not_active Expired - Fee Related
Non-Patent Citations (1)
| Title |
|---|
| See references of WO0183981A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2003532023A (en) | 2003-10-28 |
| US6722190B2 (en) | 2004-04-20 |
| US20030154774A1 (en) | 2003-08-21 |
| EP1280992B1 (en) | 2007-05-02 |
| CN1366582A (en) | 2002-08-28 |
| KR20020031154A (en) | 2002-04-26 |
| CN1202355C (en) | 2005-05-18 |
| DE50112445D1 (en) | 2007-06-14 |
| DE10021645A1 (en) | 2001-11-29 |
| RU2267644C2 (en) | 2006-01-10 |
| WO2001083981A1 (en) | 2001-11-08 |
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