EP1045967B1 - Phase recognition device - Google Patents
Phase recognition device Download PDFInfo
- Publication number
- EP1045967B1 EP1045967B1 EP99948671A EP99948671A EP1045967B1 EP 1045967 B1 EP1045967 B1 EP 1045967B1 EP 99948671 A EP99948671 A EP 99948671A EP 99948671 A EP99948671 A EP 99948671A EP 1045967 B1 EP1045967 B1 EP 1045967B1
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- EP
- European Patent Office
- Prior art keywords
- phase detection
- segment
- detection device
- detected
- crankshaft
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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
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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
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/02—Circuit arrangements for generating control signals
- F02D41/04—Introducing corrections for particular operating conditions
- F02D41/06—Introducing corrections for particular operating conditions for engine starting or warming up
-
- 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
- F02P7/00—Arrangements of distributors, circuit-makers or -breakers, e.g. of distributor and circuit-breaker combinations or pick-up devices
- F02P7/06—Arrangements of distributors, circuit-makers or -breakers, e.g. of distributor and circuit-breaker combinations or pick-up devices of circuit-makers or -breakers, or pick-up devices adapted to sense particular points of the timing cycle
- F02P7/067—Electromagnetic pick-up devices, e.g. providing induced current in a coil
- F02P7/0675—Electromagnetic pick-up devices, e.g. providing induced current in a coil with variable reluctance, e.g. depending on the shape of a tooth
-
- 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
- F02D2041/0092—Synchronisation of the cylinders at engine start
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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
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/0097—Electrical control of supply of combustible mixture or its constituents using means for generating speed signals
Definitions
- the invention relates to a device Phase detection in an internal combustion engine after Genus of the main claim.
- a multi-cylinder internal combustion engine with a crank and at least one camshaft is in the control unit Depends on the recognized position of the crank and the Camshaft calculates when for which cylinder fuel to be injected and when an ignition is triggered shall be. It is common for the angular position of the Determine crankshaft with the help of a sensor that the Crankshaft or a disk connected to it scans a characteristic surface.
- a system at which the phase position is determined without a phase sensor is from DE-OS 44 18 577 known.
- the start of the injection is obtained from the Angular position of the crankshaft for the individual cylinders, also pre-storage angle called, specifically changed so that from one work cycle to the next at wrong Phase position a speed change is initiated, which is evaluated with the help of the Crankshaft sensor delivered signals is detected.
- This speed change is in Control unit recognized and evaluated and for phase detection and then on used for phase synchronization.
- a method for phase detection is already known from EP 640 762 A1 the presence or absence of a change in speed when fading out Injection processes is evaluated. This procedure only takes place with a static one Operation of the internal combustion engine.
- the inventive device for phase detection with the features of Claim 1 has the advantage that a particularly fast synchronization without Camshaft sensor can be done.
- FIG. 1 In the control system for an internal combustion engine shown in FIG denotes an encoder disk, which is rigid with the crankshaft 11 of the internal combustion engine is connected and on its circumference a multiplicity of similar angle marks 12 having.
- a reference mark 13 In addition to these similar angle marks 12 there is a reference mark 13 available, which is realized for example by two missing angle marks.
- the total number of angle marks is, for example, 60-2.
- the sensor disk 10 is scanned by a sensor 14 which Output signals to the control unit 15 delivers the after signal processing are available as square-wave signals that reflect the surface of the encoder disk 10.
- Phase sensor that the camshaft 16 or one with the Camshaft 16 connected disc with a mark is not provided here.
- the information with respect to the phase position, which from the output signal of a Such a sensor is usually obtained here Get help using the procedure described below.
- the control unit 15 receives via various inputs further, for the control or regulation of the Internal combustion engine required input quantities.
- the associated sensors are designated 17. About one further input, an "ignition on” signal is fed, the one connecting the ignition switch 18 from the terminal Terminal 15 of the ignition lock is supplied.
- the at least one central processor unit 18 and one Memory 19 includes signals for the ignition and Injection determined, these signals are on the Outputs 20 and 21 issued.
- the power supply of the Control unit 15 is carried out in the usual way with the aid of a Battery 22, which is switched on via a switch 23.
- the Position of the crankshaft 11 during operation of the Internal combustion engine can be detected at any time. Since the Assignment between crankshaft and camshaft as well is known how the assignment between the position of the Camshaft and the position of the individual cylinders, can according to synchronization takes place when the reference mark is recognized, however, only if one for the phase position characteristic signal is present.
- the phase signal is required because the one supplied by the crankshaft sensor Reference mark signal is ambiguous because the crankshaft within one working cycle of the internal combustion engine two Turns while the camshaft turns only once.
- phase angle in a system without a phase sensor can be recognized and a sequential injection the following functions run in the control unit:
- the adjusting signals of the crankshaft sensor evaluated. If the reference mark is recognized for the first time, the sequential injection at the first reference mark started. Since it is unclear in which revolution the Crankshaft is the lead angle for the Injection either correct or wrong by 360 ° KW. to Phase recognition will be injections after the start hidden or suppressed for a cylinder. This Injection is suppressed approximately three times Working games in the falling branch of the start overshoot. With the branch of the take-off overshoot falling off Speed drop meant that in Figure 2 or Figure 4 with area 1 is marked. Can't phase the blanking will be clearly determined at idle repeated after a short wait.
- segment times are monitored.
- the Segment times are defined so that they are approximately lie symmetrically around the ignition TDC of the respective cylinder and the segment location must be specified for each engine become.
- the segment length is 720 ° KW / number of cylinders and includes a certain number of angle marks or
- a dynamic value can be calculated which must exceed a predeterminable absolute value so that a misfire is detected on the corresponding cylinder.
- the difference between the last two dynamic values can also be calculated.
- the number of suppressed injections -1 on a cylinder for example, must have been recognized.
- a phase search can be successfully completed if the resulting drop in speed was correctly recognized twice with three fades out. In a further condition, it may be required that no misfires have been detected on another cylinder. If the phase search reveals that the synchronization by 360 ° KW is wrong, a re-synchronization is carried out.
- FIGS. 2 and 3 are: open the inlet valve, Injection pulse, ignition, fading out, re-synchronization and Speed versus time for an example where the Injection by 360 ° KW was wrong and a re-synchronization was required.
- Figures 4 and 5 is the same thing for an example with correct Synchronization applied.
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
- Measuring Phase Differences (AREA)
Description
Die Erfindung geht aus von einer Einrichtung zur Phasenerkennung bei einer Brennkraftmaschine nach der Gattung des Hauptanspruchs.The invention relates to a device Phase detection in an internal combustion engine after Genus of the main claim.
Bei einer Mehrzylinder-Brennkraftmaschine mit einer Kurbelund wenigstens einer Nockenwelle wird vom Steuergerät in Abhängigkeit von der erkannten Lage der Kurbel- und der Nockenwelle berechnet, wann für welchen Zylinder Kraftstoff eingespritzt werden soll und wann eine Zündung ausgelöst werden soll. Dabei ist es üblich, die Winkellage der Kurbelwelle mit Hilfe eines Sensors zu ermitteln, der die Kurbelwelle bzw. eine mit dieser verbundene Scheibe mit einer charakteristischen Oberfläche abtastet.In a multi-cylinder internal combustion engine with a crank and at least one camshaft is in the control unit Depends on the recognized position of the crank and the Camshaft calculates when for which cylinder fuel to be injected and when an ignition is triggered shall be. It is common for the angular position of the Determine crankshaft with the help of a sensor that the Crankshaft or a disk connected to it scans a characteristic surface.
Da sich die Kurbelwelle innerhalb eines Arbeitsspiels der Brennkraftmaschine zwei Mal dreht, läßt sich allein durch Abtasten der Kurbelwelle die Phase der Brennkraftmaschine nicht eindeutig bestimmen. Damit dies möglich ist, wird üblicherweise mit Hilfe eines zweiten Sensors eine mit der Nockenwelle in Verbindung stehende Geberscheibe, die an ihrer Oberfläche eine Bezugsmarke aufweist, abgetastet. Da sich die Nockenwelle nur ein Mal während eines Arbeitsspiels dreht, kann das Steuergerät aus der Kombination der vom Kurbelwellen- und vom Nockenwellensensor gelieferten Signale eine eindeutige Zuordnung erkannt werden und die sogenannte Synchronisation durchgeführt werden.Because the crankshaft moves within one working cycle Internal combustion engine rotates twice, can be done by itself Scanning the crankshaft the phase of the internal combustion engine not clearly determine. To make this possible usually with the help of a second sensor Camshaft related encoder disc on has a reference mark on its surface. There The camshaft only rotates once during a work cycle Control unit from the combination of the crankshaft and camshaft sensors delivered signals a clear assignment can be recognized and the so-called Synchronization.
Bei Systemen, die ohne Nockenwellen- bzw. Phasensensor auskommen, sind zusätzliche Maßnahmen erforderlich, die es ermöglichen, daß allein aus dem vom Kurbelwellensensor gelieferten Signal eine Synchronisation möglich ist. Ein System, bei dem die Phasenlage ohne Phasensensor ermittelt wird, ist aus der DE-OS 44 18 577 bekannt.For systems that do not need a camshaft or phase sensor, there are additional ones Measures are required which would allow that only from the The supplied crankshaft sensor synchronization is possible. A system at which the phase position is determined without a phase sensor is from DE-OS 44 18 577 known.
Bei diesem bekannten System wird der Beginn der Einspritzung bezogen aus die Winkelstellung der Kurbelwelle für die einzelnen Zylinder, auch Vorlagerungswinkel genannt, gezielt so verändert, daß von einem Arbeitsspiel zum nächsten bei falscher Phasenlage eine Drehzahländerung initiiert wird, die mit Hilfe der Auswertung der vom Kurbelwellensensor gelieferten Signale erkannt wird. Diese Drehzahländerung wird im Steuergerät erkannt und ausgewertet und zur Phasenerkennung und daran anschließend zur Phasensynchronisation verwendet.In this known system, the start of the injection is obtained from the Angular position of the crankshaft for the individual cylinders, also pre-storage angle called, specifically changed so that from one work cycle to the next at wrong Phase position a speed change is initiated, which is evaluated with the help of the Crankshaft sensor delivered signals is detected. This speed change is in Control unit recognized and evaluated and for phase detection and then on used for phase synchronization.
Aus der EP 640 762 A 1 iste bereits ein Verfahren zur Phasenerkennung bekannt bei dem das Vorliegen oder Nichtvorliegen einer Drehzahländerung bei einer Ausblendung von Einspritzvorgängen ausgewertet wird. Dieses Verfahren erfolgt erst bei einem statischen Betrieb der Brennkraftmaschine.A method for phase detection is already known from EP 640 762 A1 the presence or absence of a change in speed when fading out Injection processes is evaluated. This procedure only takes place with a static one Operation of the internal combustion engine.
Die erfindungsgemäße Einrichtung zur Phasenerkennung mit den Merkmalen des
Anspruchs 1 hat den Vorteil, daß eine besonders schnelle Synchronisation ohne
Nockenwellensensor erfolgen kann.The inventive device for phase detection with the features of
Erzielt werden diese Vorteile durch eine Einrichtung zur Phasenerkennung mit den
Merkmalen des Anspruchs 1. These advantages are achieved by a device for phase detection with the
Features of
Weitere Vorteile der Erfindung werden durch die in den Unteransprüchen angegebenen Maßnahmen erzielt.Further advantages of the invention are given by those specified in the subclaims Measures achieved.
In Figur 1 sind die zur Erläuterung der Erfindung erforderlichen Komponenten eines Steuerungssystems einer Brennkraftmaschine schematisch dargestellt und in den Figuren 2 bis 5 sind erfindungswesentliche Größen bzw. Ansteuersignale über der Zeit aufgetragen.In Figure 1, the components required to explain the invention are one Control system of an internal combustion engine shown schematically and in the figures 2 to 5 are quantities or control signals over time that are essential to the invention applied.
In dem in Figur 1 dargestellten Steuerungssystem für eine Brennkraftmaschine ist mit 10
eine Geberscheibe bezeichnet, die starr mit der Kurbelwelle 11 der Brennkraftmaschine
verbunden ist und an ihrem Umfang eine Vielzahl gleichartiger Winkelmarken 12
aufweist. Neben diesen gleichartigen Winkelmarken 12 ist eine Referenzmarke 13
vorhanden, die beispielsweise durch zwei fehlende Winkelmarken realisiert ist. Die
Gesamtzahl der Winkelmarken beträgt beispielsweise 60-2. In the control system for an internal combustion engine shown in FIG
denotes an encoder disk, which is rigid with the crankshaft 11 of the internal combustion engine
is connected and on its circumference a multiplicity of
Die Geberscheibe 10 wird von einem Sensor 14 abgetastet, der
Ausgangssignale an das Steuergerät 15 liefert, die nach
einer Signalaufbereitung als Rechtecksignale vorliegen, die
die Oberfläche der Geberscheibe 10 wiederspiegeln.The
Ein bei herkömmlichen Brennkraftmaschinen vorhandener
Phasensensor, der die Nockenwelle 16 bzw. eine mit der
Nockenwelle 16 verbundene Scheibe mit einer Markierung
abtastet, ist hier nicht vorgesehen. Die Information
bezüglich der Phasenlage, die aus dem Ausgangssignal eines
solchen Sensors üblicherweise gewonnen wird, wird hier mit
Hilfe des im Folgenden beschriebenen Verfahrens erhalten.An existing in conventional internal combustion engines
Phase sensor that the
Das Steuergerät 15 erhält über verschiedene Eingänge
weitere, für die Steuerung bzw. Regelung der
Brennkraftmaschine erforderliche Eingangsgrößen. Die
zugehörigen Sensoren sind mit 17 bezeichnet. Über einen
weiteren Eingang wird ein "Zündungs ein"-Signal zugeführt,
das ein Anschließen des Zündschalters 18 von der Klemme
Kl.15 des Zündschlosses geliefert wird. Im Steuergerät 15,
das wenigstens eine zentrale Prozessoreinheit 18 sowie einen
Speicher 19 umfaßt, werden Signale für die Zündung und
Einspritzung ermittelt, diese Signale werden über die
Ausgänge 20 und 21 abgegeben. Die Spannungsversorgung des
Steuergerätes 15 erfolgt in üblicher Weise mit Hilfe einer
Batterie 22, die über einen Schalter 23 zugeschaltet wird.The
Mit der in Figur 1 beschriebenen Einrichtung kann die Stellung der Kurbelwelle 11 während des Betriebes der Brennkraftmaschine jederzeit erfasst werden. Da die Zuordnung zwischen Kurbelwelle und Nockenwelle ebenso bekannt ist wie die Zuordnung zwischen der Stellung der Nockenwelle und der Lage der einzelnen Zylinder, kann nach dem Erkennen der Bezugsmarke eine Synchronisation erfolgen, jedoch nur dann, wenn ein für die Phasenlage charakteristisches Signal vorhanden ist. Das Phasensignal wird benötigt, da das vom Kurbelwellensensor gelieferte Bezugsmarkensignal mehrdeutig ist, da sich die Kurbelwelle innerhalb eines Arbeitsspieles der Brennkraftmaschine zwei Mal dreht, während sich die Nockenwelle nur ein Mal dreht.With the device described in Figure 1, the Position of the crankshaft 11 during operation of the Internal combustion engine can be detected at any time. Since the Assignment between crankshaft and camshaft as well is known how the assignment between the position of the Camshaft and the position of the individual cylinders, can according to synchronization takes place when the reference mark is recognized, however, only if one for the phase position characteristic signal is present. The phase signal is required because the one supplied by the crankshaft sensor Reference mark signal is ambiguous because the crankshaft within one working cycle of the internal combustion engine two Turns while the camshaft turns only once.
Damit bei einem System ohne Phasensensor die Phasenlage erkannt werden kann und eine sequentielle Einspritzung erfolgen kann, laufen im Steuergerät folgende Funktionen ab:This means the phase angle in a system without a phase sensor can be recognized and a sequential injection the following functions run in the control unit:
Nach erkanntem Start der Brennkraftmaschine werden die sich
einstellenden Signale des Kurbelwellensensors ausgewertet.
Wird die Bezugsmarke erstmalig erkannt, wird mit der
sequentiellen Einspritzung an der ersten Bezugsmarke
gestartet. Da unklar ist, in welcher Umdrehung sich die
Kurbelwelle befindet, ist der Vorlagerungswinkel für die
Einspritzung entweder richtig oder um 360°KW falsch. Zur
Phasenerkennung werden nach erfolgtem Start Einspritzungen
für einen Zylinder ausgeblendet bzw, unterdrückt. Diese
Unterdrückung der Einspritzung erfolgt dabei ca. drei
Arbeitsspiele im abfallenden Ast des Startüberschwingers.
Mit abfallendem Ast des Startüberschwingers ist der
Drehzahlrückgang gemeint, der in Figur 2 bzw. Figur 4 mit
dem Bereich 1 gekennzeichnet ist. Kann die Phasenlage nicht
eindeutig bestimmt werden, wird die Ausblendung im Leerlauf
nach einer kurzen Wartezeit wiederholt.After a recognized start of the internal combustion engine, the
adjusting signals of the crankshaft sensor evaluated.
If the reference mark is recognized for the first time, the
sequential injection at the first reference mark
started. Since it is unclear in which revolution the
Crankshaft is the lead angle for the
Injection either correct or wrong by 360 ° KW. to
Phase recognition will be injections after the start
hidden or suppressed for a cylinder. This
Injection is suppressed approximately three times
Working games in the falling branch of the start overshoot.
With the branch of the take-off overshoot falling off
Speed drop meant that in Figure 2 or Figure 4 with
Im Zeitraum während der Ausblendung bis zwei Kurbelwellenumdrehungen nach der letzten Ausblengung werden speziell gebildete Segmentzeiten überwacht. Die Segmentzeiten sind dabei so definiert, daß sie etwa symmetrisch um den Zünd-OT des jeweiligen Zylinders liegen und die Segmentlage muß für jeden Motor speziell festgelegt werden. Die Segmentlänge beträgt 720°KW/Zylinderzahl und umfaßt eine bestimmte Anzahl von Winkelmarken bzw. In the period during the fading out to two Crankshaft revs after the last deflection specially formed segment times are monitored. The Segment times are defined so that they are approximately lie symmetrically around the ignition TDC of the respective cylinder and the segment location must be specified for each engine become. The segment length is 720 ° KW / number of cylinders and includes a certain number of angle marks or
Signalflanken. Da die Zeit ermittelt wird, in der sich die Kurbelwelle um ein Segment dreht, ergibt sich bei der Drehzahlauswertung ein Tiefpaßverhalten. Es erfolgt eine Mittelwertbildung über mehrere Winkelmarken bzw. Winkelmarken. Die Lage des Segments ist so zu wählen, daß der Segmentzeitanstieg durch einen ausgeblendeten Zylinder, also der Zeitanstieg, der durch wählende Verbrennung verursacht, zur Hälfte im Segment liegt. Dadurch ergibt sich ein größtmöglicher Störabstand zum nächsten Segment.Signal edges. Since the time in which the Crankshaft rotates by one segment results in the Speed evaluation a low-pass behavior. There is a Averaging over several angle marks or Angle marks. The position of the segment should be chosen so that the segment time increase due to a hidden cylinder, thus the increase in time caused by selective combustion caused, half lies in the segment. This results in the greatest possible signal-to-noise ratio to the next segment.
Zur Erkennung eines Drehzahleinbruchs nach ausgeblendeter
Einspritzung werden immer nur die Segmentzeiten ausgewertet,
bei denen sich die Ausblendung der Einspritzung auswirken
kann. Beispielsweise wird bei einer 4-Zylinder-Brennkraftmaschine
die Einspritzung für Zylinder 1
ausgeblendet und die Segmentzeit um den Zündungs-OT von
Zylinder 2 und 4 wird ausgewertet. Bei einer
Brennkraftmaschine mit geradzahliger Zylinderzahl bedeutet
dies, daß die Segmentzeiten jeweils am mechanisch selben
Segment, d. h. also jeweils zwischen den selben Winkelmarken
ermittelt werden. Dadurch haben eventuell vorhandene
Geberradtoleranzen keinen Einfluß auf die
Drehzahlauswertung.To detect a drop in speed after hidden
Only the segment times are evaluated,
where the suppression of the injection affects
can. For example, in a 4-cylinder internal combustion engine
the injection for
Durch Differenzbildung der beiden Segmentzeiten von Zylinder
2 und Zylinder 4 bei Ausblendung für Zylinder 1 läßt sich
ein Dynamikwert berechnen, der einen vorgebbaren Absolutwert
übersteigen muß, damit an dem entsprechenden Zylinder ein
Aussetzer detektiert wird. Es gilt:
dts = Dynamikwert
dies gilt für eine 4-Zylinder-Brennkraftmaschine. By forming the difference between the two segment times of
dts = dynamic value
this applies to a 4-cylinder internal combustion engine.
Zusätzlich zur Differenzbildung der beiden Segmentzeiten
läßt sich noch die Differenz der zwei letzten Dynamikwerte
berechnen. Diese Differenz muß also ein Absolutwert sein, es
gilt
In den Figuren 2 und 3 sind die Größen: Einlaßventil öffnen, Einspritzimpuls, Zünden, Ausblenden, Umsynchronisation und Drehzahl über der Zeit für ein Beispiel, bei dem die Einspritzung um 360°KW falsch war und eine Umsynchronisation erforderlich war, aufgetragen. In den Figuren 4 und 5 ist der selbe Sachverhalt für ein Beispiel mit korrekter Synchronisation aufgetragen.The figures in FIGS. 2 and 3 are: open the inlet valve, Injection pulse, ignition, fading out, re-synchronization and Speed versus time for an example where the Injection by 360 ° KW was wrong and a re-synchronization was required. In Figures 4 and 5 is the same thing for an example with correct Synchronization applied.
Claims (6)
- Phase detection device in an internal combustion engine, having a crankshaft whose angular position is determined continuously by evaluating a signal, supplied by a crankshaft sensor, in an evaluation device, and the evaluation device triggers injection pulses and ignition pulses as a function of the angular position, and influences the injection in order to detect the phase angle after the internal combustion engine is started, and evaluates the resulting changes in rotational speed, the injection being suppressed for predefinable cylinders so that no fuel is injected and the output signal of the crankshaft sensor is monitored for an expected reaction, characterized in that the phase detection device contains means which, after starting has been detected, cause the injection to be suppressed in a range in which the rotational speed is reduced, this range corresponding to the falling branch of the starting overshoot.
- Phase detection device according to Claim 1, characterized in that segment times are determined from the output signal of the crankshaft sensor, a segment extending over a predefinable angular range and a segment time being defined in such a way that in this time the crankshaft rotates by one segment, and in that by comparing selected segment times an ignition which has failed to occur is detected and used for phase detection.
- Phase detection device according to Claim 2, characterized in that the difference between predefinable segment times is formed, in that the determined difference is compared with a predefinable or adaptable minimum value, and a combustion misfire is detected if the determined difference exceeds the minimum value.
- Phase detection device according to Claim 3, characterized in that a detected misfire is assigned using a cylinder counter of the respective phase angle and detected misfires are summed correctly or incorrectly using in each case one counter for phase angle.
- Phase detection device according to one of the preceding claims, characterized in that, when incorrect synchronization is detected, resynchronization is performed which is displaced by 360°CA.
- Phase detection device according to one of the preceding claims, characterized in that rotational speeds are determined from the output signal of the crankshaft sensor, the rotational speed being respectively determined from one segment time.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19844910 | 1998-09-30 | ||
| DE19844910A DE19844910A1 (en) | 1998-09-30 | 1998-09-30 | Phase detection device |
| PCT/DE1999/002267 WO2000019077A1 (en) | 1998-09-30 | 1999-07-23 | Phase recognition device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1045967A1 EP1045967A1 (en) | 2000-10-25 |
| EP1045967B1 true EP1045967B1 (en) | 2004-01-14 |
Family
ID=7882845
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP99948671A Expired - Lifetime EP1045967B1 (en) | 1998-09-30 | 1999-07-23 | Phase recognition device |
Country Status (7)
| Country | Link |
|---|---|
| EP (1) | EP1045967B1 (en) |
| JP (1) | JP2002525494A (en) |
| KR (1) | KR100624352B1 (en) |
| BR (1) | BR9909572A (en) |
| DE (2) | DE19844910A1 (en) |
| RU (1) | RU2230210C2 (en) |
| WO (1) | WO2000019077A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102301115B (en) * | 2009-01-28 | 2014-06-25 | 罗伯特·博世有限公司 | Device and method for operating an internal combustion engine |
Families Citing this family (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10015595A1 (en) * | 2000-03-29 | 2001-10-04 | Bayerische Motoren Werke Ag | Method to recognize combustion stroke in single-cylinder four-stroke engine measures and compares periods of two subsequent crankshaft rotations, with combustion stroke during shorter period |
| SE518102C2 (en) * | 2000-04-14 | 2002-08-27 | Scania Cv Ab | Methods and apparatus for determining where in their duty cycles an internal combustion engine cylinders are located |
| DE10120800B4 (en) * | 2001-04-27 | 2005-10-20 | Bosch Gmbh Robert | Method for phase detection by means of injection suppression on internal combustion engines |
| DE10122247B4 (en) * | 2001-05-08 | 2004-06-24 | Robert Bosch Gmbh | Method for phase detection in an internal combustion engine |
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| FR2925593B1 (en) * | 2007-12-20 | 2014-05-16 | Renault Sas | METHOD FOR GENERATING A SYNCHRONIZATION SIGNAL OF THE OPERATING CYCLE OF AN INTERNAL COMBUSTION ENGINE |
| CN105452634B (en) * | 2013-08-19 | 2018-12-21 | 罗伯特·博世有限公司 | A kind of method and device thereof controlling fuel injection system |
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| FR3035157B1 (en) * | 2015-04-16 | 2017-04-21 | Continental Automotive France | METHOD AND DEVICE FOR DETECTION OF REVERSE ROTATION OF AN INTERNAL COMBUSTION ENGINE |
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| DE4002209C2 (en) * | 1990-01-26 | 2003-05-08 | Bosch Gmbh Robert | Misfire detection in an internal combustion engine |
| FR2692623B1 (en) * | 1992-06-23 | 1995-07-07 | Renault | CYLINDER MARKING METHOD FOR THE PILOTAGE OF AN ELECTRONIC INJECTION SYSTEM OF AN INTERNAL COMBUSTION ENGINE. |
| EP0640762B1 (en) * | 1993-08-26 | 1996-10-23 | Siemens Aktiengesellschaft | Cylinder synchronization of a multi-cylinder internal combustion engine via detection of a directed misfire |
| ITBO940238A1 (en) * | 1994-05-23 | 1995-11-23 | Weber Srl | ELECTRONIC SYSTEM FOR IDENTIFICATION OF THE PHASES OF AN ENDothermic ENGINE |
| DE4418578B4 (en) * | 1994-05-27 | 2004-05-27 | Robert Bosch Gmbh | Device for detecting the phase position in an internal combustion engine |
-
1998
- 1998-09-30 DE DE19844910A patent/DE19844910A1/en not_active Withdrawn
-
1999
- 1999-07-23 KR KR1020007005637A patent/KR100624352B1/en not_active IP Right Cessation
- 1999-07-23 JP JP2000572499A patent/JP2002525494A/en active Pending
- 1999-07-23 RU RU2000117465/06A patent/RU2230210C2/en not_active IP Right Cessation
- 1999-07-23 WO PCT/DE1999/002267 patent/WO2000019077A1/en active IP Right Grant
- 1999-07-23 EP EP99948671A patent/EP1045967B1/en not_active Expired - Lifetime
- 1999-07-23 BR BR9909572-6A patent/BR9909572A/en not_active IP Right Cessation
- 1999-07-23 DE DE59908304T patent/DE59908304D1/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102301115B (en) * | 2009-01-28 | 2014-06-25 | 罗伯特·博世有限公司 | Device and method for operating an internal combustion engine |
Also Published As
| Publication number | Publication date |
|---|---|
| EP1045967A1 (en) | 2000-10-25 |
| RU2230210C2 (en) | 2004-06-10 |
| DE19844910A1 (en) | 2000-04-06 |
| KR20010032397A (en) | 2001-04-16 |
| KR100624352B1 (en) | 2006-09-18 |
| WO2000019077A1 (en) | 2000-04-06 |
| JP2002525494A (en) | 2002-08-13 |
| BR9909572A (en) | 2000-12-19 |
| DE59908304D1 (en) | 2004-02-19 |
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