EP0498046A2 - Signal acquisition device - Google Patents

Signal acquisition device Download PDF

Info

Publication number
EP0498046A2
EP0498046A2 EP91119400A EP91119400A EP0498046A2 EP 0498046 A2 EP0498046 A2 EP 0498046A2 EP 91119400 A EP91119400 A EP 91119400A EP 91119400 A EP91119400 A EP 91119400A EP 0498046 A2 EP0498046 A2 EP 0498046A2
Authority
EP
European Patent Office
Prior art keywords
signals
signal
inputs
input
ignition
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
Application number
EP91119400A
Other languages
German (de)
French (fr)
Other versions
EP0498046A3 (en
EP0498046B1 (en
Inventor
Karl-Heinz Dittmann
Peter Dipl.-Ing. Etzold
Uwe Dipl.-Ing. Fischer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP0498046A2 publication Critical patent/EP0498046A2/en
Publication of EP0498046A3 publication Critical patent/EP0498046A3/en
Application granted granted Critical
Publication of EP0498046B1 publication Critical patent/EP0498046B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02PIGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
    • F02P17/00Testing of ignition installations, e.g. in combination with adjusting; Testing of ignition timing in compression-ignition engines
    • F02P17/10Measuring dwell or antidwell time
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02PIGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
    • F02P17/00Testing of ignition installations, e.g. in combination with adjusting; Testing of ignition timing in compression-ignition engines
    • F02P17/02Checking or adjusting ignition timing

Definitions

  • the invention relates to a device for detecting signals according to the preamble of the main claim.
  • a device for diagnosing distributorless ignition systems is known. Diodes are connected to the ignition coils of the ignition system and transmit the signals occurring in the ignition coils, decoupled from one another, to a signal combining point. The combined signals are processed in an evaluation circuit. A voltage measurement at the signal junction is always subject to an error caused by the diodes. At high speeds of the internal combustion engine operated with the ignition system, the closing phase of an ignition circuit can be covered by the ignition process of another ignition circuit. The analysis of the signal that can be picked up from an ignition coil as a function of time is therefore not possible in all operating situations.
  • the invention has for its object to develop a device for detecting signals in such a way that the most complete possible analysis of the signals is possible.
  • the measure according to the invention that additional means can be provided for selecting one of the signals has the advantage that merged and individual signals can be analyzed simultaneously. Additional taps at the signal sources are not necessary.
  • the device according to the invention enables a comprehensive analysis of the signals occurring at the signal sources with little additional effort.
  • a cost-effective implementation provides for manual actuation of the additional selection means. An operator selects the signal to be evaluated individually.
  • Another advantageous embodiment provides for the actuation of the selection means by a signal processing arrangement which is available for evaluating the merged and / or the individual signals.
  • the selection of the individual signal can therefore be carried out automatically depending on the analysis to be carried out.
  • a targeted selection of the individual signal by an operator is also possible via the signal processing arrangement.
  • a particularly advantageous embodiment provides that the means for merging the signals contain a first and second group of decoupling means, in particular diodes. With the first group it is then possible to combine those signals which have a positive potential with respect to a reference potential, while the second group combines the signals with a negative potential.
  • Simple, unshielded cables are provided as input lines of the device according to the invention, which result in cost advantages over shielded cables.
  • a coupling between the input lines due to stray capacities cannot be ruled out.
  • This capacitive coupling would, in particular on a non-connected input line, simulate a signal that is coupled in from another input line.
  • An advantageous further development of the device according to the invention therefore provides an input circuit with capacitors which considerably reduces the coupled signals.
  • the capacitors form a capacitive voltage divider with the stray capacitances, which reduces the signal amplitudes according to the division ratio.
  • the device according to the invention is particularly suitable for use in diagnostic devices for motor vehicles.
  • multiple signal sources can often be observed at the same time, the signals of which are in part time-coupled because the different devices in the motor vehicle partially influence one another.
  • the device according to the invention is suitable for use in diagnosing ignition systems with more than one ignition coil.
  • the combined signal enables, for example, the determination of the speed and the concentricity of the internal combustion engine, while the evaluation of the individual signal simultaneously permits a precise voltage measurement or an evaluation of temporal relationships, for example the determination of the closing time of an ignition switching element.
  • a device according to the invention for detecting signals is shown in the figure.
  • an ignition system 10 is shown, which is separated by a broken line from a device 11 according to the invention for detecting signals.
  • the device 11 is referred to below as the diagnostic device 11.
  • the ignition system 10 contains two ignition coils 12, 13, each having first primary connections 14, 15, second primary connections 16, 17, first secondary connections 18, 19 and second secondary connections 20, 21.
  • the two secondary connections 18, 20 of the first ignition coil 12 are each connected to spark plugs 22, 23, which are connected to a ground 24.
  • the first secondary connection 19 of the second ignition coil 13 is connected to the first primary connection 15, while the second secondary connection 21 is connected to a further spark plug 25, which is also connected to ground 24.
  • the second primary connections 16, 17 are connected to an ignition switch 26, which establishes a connection to an energy source 27, which is connected to ground 24.
  • the first primary connections 14, 15 of the ignition coil 12, 13 are each connected to ignition switching elements 28, 29, which are arranged in an ignition switching device 30.
  • the inputs 33, 34 are also connected to selection means 41 which apply one of the input signals to an output 42.
  • the output 42 is at the same time the second input of a signal processing arrangement 43 which contains a second input 44 which is connected to switching means 45 which connect the second input 44 to either the first or second signal combination point 37, 40.
  • the selection means 41 have an input 46, via which the selection of a signal takes place.
  • An output 47 of the signal processing arrangement 43 and a manual input 48 are provided for selection.
  • the inputs 33, 34 are also each connected to capacitors 49, 50, which are connected to ground 24.
  • the capacitors 49, 50 act together with a capacitor 51 which is located on input lines between the inputs 33, 34.
  • the capacitor 51 is shown in dashed lines in the figure because it occurs as stray capacitance between input lines.
  • the capacitor 51 is not present as a discrete component.
  • the device according to the invention for detecting signals works as follows:
  • the ignition system 10 is provided, for example, for operating an internal combustion engine (not shown in the figure).
  • the ignition system 10 contains more than one ignition coil 12, 13.
  • two spark plugs 22, 23 are connected to the first ignition coil 12, which simultaneously emit a spark.
  • only one spark plug 25 is connected to the second ignition coil 13.
  • the first primary connections 14, 15 of the ignition coils 12, 13 can be switched to ground 24 using the ignition switching elements 28, 29.
  • the ignition system 10 is not limited to any particular type. It can be a thyristor, transistor or high-frequency ignition system.
  • the first primary connections 14, 15 of the ignition coils 12, 13 are provided as signal sources, at which signals are to be recorded, and have taps 31, 32 for connecting the diagnostic device 11.
  • the first group of decoupling means 35, 36 which are preferably implemented as diodes, bring the signals at the inputs 33, 34 together at the first signal combining point 37, while the second group 38, 39 of decoupling means 38, 39, which also preferably as Diodes are implemented which combine signals at the second signal combining point 40.
  • the first diode group 35, 36 combines the input signals 33, 34, which are positive, and the second diode group 38, 39 combines the input signals 33, 34, which are negative with respect to a reference potential.
  • the reference potential itself and the required working resistances of the diodes 35, 36; 38, 39 are not shown in the figure for reasons of simplification.
  • the switching means 45 either feed the combined signal located at the first or at the second signal combining point 37, 40 to the second input 44 of the signal processing arrangement 43.
  • the switching means 45 can be operated either manually or electrically. For example, it could be controlled as a function of the potential at the first or second signal combination point 37, 40. Furthermore, it is possible to control the first switching means 45 from the signal processing arrangement 43.
  • the signal processing arrangement 43 carries out a signal evaluation as a function of a signal which is composed of the signals at the inputs 33, 34.
  • the signals at the inputs 33, 34 are fed to the selection means 41, which select one from the input signals and make them available at the output 42.
  • the selection means 41 are referred to as multiplexers, in particular as analog signal multiplexers.
  • one of the input signals is switched through to output 42.
  • the selection can, for example, be made directly by an operator via the manual input 48.
  • the input signal selection in the multiplexer 41 can also be carried out by the signal processing arrangement 43 via a control signal at the output 47.
  • the selection made by the arrangement 43 can be provided, for example, as a function of certain diagnostic routines.
  • the signal processing arrangement 43 can contain a further manual input, not shown in the figure, for the targeted search for a signal.
  • the signal at the output 42 which corresponds exactly to an input signal, can be analyzed in the signal processing arrangement to which it is supplied as the first input signal, simultaneously with the combined signal at the second input 44.
  • the device according to the invention for acquiring signals can advantageously be used wherever the signals to be tapped from more than one signal source are to be combined and analyzed individually at the same time.
  • the device according to the invention is suitable for use in the diagnosis of motor vehicles. In this application, multiple signals often occur, which are coupled to one another via the devices present in the motor vehicles.
  • the device according to the invention is particularly suitable for use in the diagnosis of ignition systems 10 with more than one ignition coil.
  • the speed, the concentricity or the totality of the ignition processes of the internal combustion engine are represented from the signals present at the signal combination points 37, 40.
  • the first diode group 35, 36 is used in particular to evaluate the signals which occur during the opening phase of the ignition switching elements 28, 29, while the signals combined with the second diode group 38, 39 permit diagnosis during the closing phase of the elements 28, 29.
  • the analysis of individual signals at the inputs 33, 34 is simultaneously desirable or necessary. For example, a voltage measurement is provided on the first or second tap 31, 32. With this voltage measurement, for example, the residual voltage can be measured during the closing phase of the elements 28, 29.
  • the signals at the inputs 33, 34 are passed on to the output 42 by the multiplexer 41 in an unadulterated manner. Additional connections to the signal sources are not required. In addition to a precise voltage measurement, a temporal analysis of the signals at the inputs 33, 34 is also possible. In the example of the diagnosis of ignition systems, the closing phases of the elements 28, 29 can each be evaluated separately. Such an evaluation would not be possible in all operating states with the signals only at the signal merging points 37, 40, because at high speeds the elements 28, 29 may overlap, which prevents precise evaluation.
  • the lines that connect the taps 31, 32 to the inputs 33, 34 are, for cost reasons, preferably simple cables without shielding. Capacitive couplings occur between these lines, which are symbolically entered in the figure by the capacitor 51. The capacitive coupling leads to crosstalk of signals from one line to the other, which can lead to misinterpretations of a supposed measurement result, especially when lines are not connected.
  • capacitors 49, 50 are therefore connected to ground 24 at the inputs 33, 34.
  • the capacitors 49, 50 form with the capacitor 51, which represents the stray capacitances, a capacitive voltage divider, which reduces the signal components at the inputs 33, 34 with correspondingly open inputs according to the division ratio. This capacitive voltage division does not affect the regular input signals.

Abstract

A device (11) for acquiring signals (33, 34) is proposed which contains means (35, 36; 38, 39) for combining the signals (33, 34) which occur at more than one signal source (12, 13). In addition, means (41) are provided for simultaneously selecting one of the signals (33, 34). The device (11) according to the invention is particularly suitable for analysing ignition systems (10).

Description

Stand der TechnikState of the art

Die Erfindung geht aus von einer Vorrichtung zum Erfassen von Signalen nach der Gattung des Hauptanspruchs. Aus der GB-PS 2 172 115 ist eine Vorrichtung zur Diagnose von verteilerlosen Zündanlagen bekannt. An den Zündspulen der Zündanlage sind Dioden angeschlossen, welche die in den Zündspulen auftretenden Signale voneinander entkoppelt an eine Signalzusammenführungsstelle weiterleiten. Die zusammengeführten Signale werden in einer Auswerteschaltung bearbeitet. Eine Spannungsmessung an der Signalzusammenführungsstelle ist stets mit einem Fehler behaftet, der von den Dioden verursacht ist. Bei hohen Drehzahlen der mit der Zündanlage betriebenen Brennkraftmaschine kann die Schließphase eines Zündkreises durch den Zündvorgang eines anderen Zündkreises verdeckt werden. Die Analyse des an einer Zündspule abgreifbaren Signals als Funktion der Zeit ist deshalb nicht in allen Betriebssituationen möglich.The invention relates to a device for detecting signals according to the preamble of the main claim. From GB-PS 2 172 115 a device for diagnosing distributorless ignition systems is known. Diodes are connected to the ignition coils of the ignition system and transmit the signals occurring in the ignition coils, decoupled from one another, to a signal combining point. The combined signals are processed in an evaluation circuit. A voltage measurement at the signal junction is always subject to an error caused by the diodes. At high speeds of the internal combustion engine operated with the ignition system, the closing phase of an ignition circuit can be covered by the ignition process of another ignition circuit. The analysis of the signal that can be picked up from an ignition coil as a function of time is therefore not possible in all operating situations.

Der Erfindung liegt die Aufgabe zugrunde, eine Vorrichtung zum Erfassen von Signalen derart weiterzubilden, so daß eine möglichst vollständige Analyse der Signale möglich ist.The invention has for its object to develop a device for detecting signals in such a way that the most complete possible analysis of the signals is possible.

Die Aufgabe wird durch die im Hauptanspruch angegebenen Merkmale gelöst.The object is achieved by the features specified in the main claim.

Vorteile der ErfindungAdvantages of the invention

Die erfindungsgemäße Maßnahme, daß zusätzlich Mittel vorsehbar sind zur Auswahl eines der Signale, weist den Vorteil auf, daß gleichzeitig zusammengeführte und einzelne Signale analysierbar sind. Zusätzliche Abgriffe an den Signalquellen sind nicht erforderlich. Die erfindungsgemäße Vorrichtung ermöglicht mit nur geringem Mehraufwand eine umfassende Analyse der an den Signalquellen auftretenden Signale.The measure according to the invention that additional means can be provided for selecting one of the signals has the advantage that merged and individual signals can be analyzed simultaneously. Additional taps at the signal sources are not necessary. The device according to the invention enables a comprehensive analysis of the signals occurring at the signal sources with little additional effort.

Vorteilhafte Weiterbildungen und Verbesserungen der erfindungsgemäßen Vorrichtung ergeben sich aus Unteransprüchen.Advantageous further developments and improvements of the device according to the invention result from subclaims.

Eine kostengünstig realisierbare Ausgestaltung sieht eine manuelle Betätigung der zusätzlichen Auswahlmittel vor. Eine Bedienperson wählt das einzeln auszuwertende Signal aus.A cost-effective implementation provides for manual actuation of the additional selection means. An operator selects the signal to be evaluated individually.

Eine andere vorteilhafte Ausgestaltung sieht die Betätigung der Auswahlmittel von einer signalverarbeitenden Anordnung vor, die zur Auswertung der zusammengeführten und/oder der einzelnen Signale vorhanden ist. Die Auswahl des einzelnen Signals kann daher in Abhängigkeit von der durchzuführenden Analyse selbsttätig vorgenommen werden. Eine gezielte Auswahl des einzelnen Signals von einer Bedienperson ist auch über die signalverarbeitende Anordnung möglich.Another advantageous embodiment provides for the actuation of the selection means by a signal processing arrangement which is available for evaluating the merged and / or the individual signals. The selection of the individual signal can therefore be carried out automatically depending on the analysis to be carried out. A targeted selection of the individual signal by an operator is also possible via the signal processing arrangement.

Eine besonders vorteilhafte Ausgestaltung sieht vor, daß die Mittel zum Zusammenführen der Signale eine erste und zweite Gruppe von Entkopplungsmitteln, insbesondere Dioden, enthalten. Mit der ersten Gruppe ist es dann möglich, diejenigen Signale zusammenzuführen, die gegenüber einem Bezugspotential positives Potential aufweisen, während die zweite Gruppe die Signale mit negativem Potential zusammenführt.A particularly advantageous embodiment provides that the means for merging the signals contain a first and second group of decoupling means, in particular diodes. With the first group it is then possible to combine those signals which have a positive potential with respect to a reference potential, while the second group combines the signals with a negative potential.

Als Eingangsleitungen der erfindungsgemäßen Vorrichtung sind einfache, nicht abgeschirmte Kabel vorgesehen, die gegenüber abgeschirmten Kabeln Kostenvorteile ergeben. Hierbei ist eine Kopplung zwischen den Eingangsleitungen durch Streukapazitäten nicht auszuschließen. Diese kapazitive Verkopplung würde insbesondere auf einer nicht angeschlossenen Eingangsleitung ein Signal vortäuschen, das von einer anderen Eingangsleitung eingekoppelt wird. Eine vorteilhafte Weiterbildung der erfindungsgemäßen Vorrichtung sieht deshalb eine Eingangsschaltung mit Kondensatoren vor, die die übergekoppelten Signale erheblich reduziert. Die Kondensatoren bilden mit den Streukapazitäten einen kapazitiven Spannungsteiler, der die Signalamplituden gemäß dem Teilungsverhältnis reduziert.Simple, unshielded cables are provided as input lines of the device according to the invention, which result in cost advantages over shielded cables. A coupling between the input lines due to stray capacities cannot be ruled out. This capacitive coupling would, in particular on a non-connected input line, simulate a signal that is coupled in from another input line. An advantageous further development of the device according to the invention therefore provides an input circuit with capacitors which considerably reduces the coupled signals. The capacitors form a capacitive voltage divider with the stray capacitances, which reduces the signal amplitudes according to the division ratio.

Die erfindungsgemäße Vorrichtung eignet sich besonders zur Verwendung bei Diagnosevorrichtungen für Kraftfahrzeuge. In dieser Anwendung sind häufig mehrere Signalquellen gleichzeitig zu beobachten, deren Signale zum Teil zeitlich gekoppelt sind, weil sich die unterschiedlichen Einrichtungen im Kraftfahrzeug zum Teil gegenseitig beeinflussen. Insbesondere ist die erfindungsgemäße Vorrichtung zur Verwendung bei einer Diagnose von Zündanlagen mit mehr als einer Zündspule geeignet. Das zusammengeführte Signal ermöglicht beispielsweise die Ermittlung der Drehzahl und des Rundlaufs der Brennkraftmaschine, während die Auswertung des einzelnen Signals gleichzeitig eine präzise Spannungsmessung oder eine Auswertung von zeitlichen Beziehungen, beispielsweise die Ermittlung der Schließzeit eines Zündungsschaltelements, gestattet.The device according to the invention is particularly suitable for use in diagnostic devices for motor vehicles. In this application, multiple signal sources can often be observed at the same time, the signals of which are in part time-coupled because the different devices in the motor vehicle partially influence one another. In particular, the device according to the invention is suitable for use in diagnosing ignition systems with more than one ignition coil. The combined signal enables, for example, the determination of the speed and the concentricity of the internal combustion engine, while the evaluation of the individual signal simultaneously permits a precise voltage measurement or an evaluation of temporal relationships, for example the determination of the closing time of an ignition switching element.

Vorteilhafte Weiterbildungen und Verbesserungen der erfindungsgemäßen Vorrichtung ergeben sich aus der folgenden Beschreibung.Advantageous further developments and improvements of the device according to the invention result from the following description.

Zeichnungdrawing

Eine erfindungsgemäße Vorrichtung zum Erfassen von Signalen ist in der Figur gezeigt.A device according to the invention for detecting signals is shown in the figure.

In der Figur ist eine Zündanlage 10 gezeigt, die strichliniert abgetrennt ist von einer erfindungsgemäßen Vorrichtung 11 zum Erfassen von Signalen. Die Vorrichtung 11 wird im folgenden als Diagnosevorrichtung 11 bezeichnet. Die Zündanlage 10 enthält zwei Zündspulen 12, 13, die jeweils erste Primäranschlüsse 14, 15, zweite Primäranschlüsse 16, 17, erste Sekundäranschlüsse 18, 19 sowie zweite Sekundäranschlüsse 20, 21 aufweisen. Die beiden Sekundäranschlüsse 18, 20 der ersten Zündspule 12 sind jeweils mit Zündkerzen 22, 23 verbunden, die gegen eine Masse 24 geschaltet sind. Der erste Sekundäranschluß 19 der zweiten Zündspule 13 ist mit dem ersten Primäranschluß 15 verbunden, während der zweite Sekundäranschluß 21 mit einer weiteren Zündkerze 25 verbunden ist, die ebenfalls gegen Masse 24 geschaltet ist. Die zweiten Primäranschlüsse 16, 17 sind an einen Zündschalter 26 geführt, der eine Verbindung zu einer Energiequelle 27 herstellt, die gegen Masse 24 geschaltet ist. Die ersten Primäranschlüsse 14, 15 der Zündspule 12, 13 sind jeweils mit Zündungsschaltelementen 28, 29 verbunden, die in einem Zündungsschaltgerät 30 angeordnet sind.In the figure, an ignition system 10 is shown, which is separated by a broken line from a device 11 according to the invention for detecting signals. The device 11 is referred to below as the diagnostic device 11. The ignition system 10 contains two ignition coils 12, 13, each having first primary connections 14, 15, second primary connections 16, 17, first secondary connections 18, 19 and second secondary connections 20, 21. The two secondary connections 18, 20 of the first ignition coil 12 are each connected to spark plugs 22, 23, which are connected to a ground 24. The first secondary connection 19 of the second ignition coil 13 is connected to the first primary connection 15, while the second secondary connection 21 is connected to a further spark plug 25, which is also connected to ground 24. The second primary connections 16, 17 are connected to an ignition switch 26, which establishes a connection to an energy source 27, which is connected to ground 24. The first primary connections 14, 15 of the ignition coil 12, 13 are each connected to ignition switching elements 28, 29, which are arranged in an ignition switching device 30.

An den ersten Primäranschlüssen 14, 15 der Zündspulen 12, 13 sind jeweils Abgriffe 31, 32 vorgesehen, an die Leitungen angeschlossen sind, die zu Eingängen 33, 34 der Diagnosevorrichtung 11 führen. An den Eingängen 33, 34 ist eine erste Gruppe von Entkopplungsmitteln 35, 36 angeschlossen, die zu einer ersten Signalzusammenführungsstelle 37 führen. Weiterhin ist eine zweite Gruppe von Entkopplungsmitteln 38, 39 an den Eingängen 33, 34 angeschlossen, die zu einer zweiten Signalzusammenführungsstelle 40 führen. Die Eingänge 33, 34 sind ferner mit Auswahlmitteln 41 verbunden, die eines der Eingangssignale an einen Ausgang 42 legen. Der Ausgang 42 ist gleichzeitig zweiter Eingang einer signalverarbeitenden Anordnung 43, die einen zweiten Eingang 44 enthält, der mit Schaltmitteln 45 verbunden ist, die den zweiten Eingang 44 entweder mit der ersten oder zweiten Signalzusammenführungsstelle 37, 40 verbinden. Die Auswahlmittel 41 weisen einen Eingang 46 auf, über den die Auswahl eines Signals erfolgt. Zur Auswahl ist ein Ausgang 47 der signalverarbeitenden Anordnung 43 und eine Handeingabe 48 vorgesehen.On the first primary connections 14, 15 of the ignition coils 12, 13, taps 31, 32 are provided, to which lines are connected that lead to inputs 33, 34 of the diagnostic device 11. A first group of decoupling means 35, 36, which lead to a first signal combination point 37, is connected to the inputs 33, 34. Furthermore, a second group of Decoupling means 38, 39 connected to the inputs 33, 34, which lead to a second signal combining point 40. The inputs 33, 34 are also connected to selection means 41 which apply one of the input signals to an output 42. The output 42 is at the same time the second input of a signal processing arrangement 43 which contains a second input 44 which is connected to switching means 45 which connect the second input 44 to either the first or second signal combination point 37, 40. The selection means 41 have an input 46, via which the selection of a signal takes place. An output 47 of the signal processing arrangement 43 and a manual input 48 are provided for selection.

Die Eingänge 33, 34 sind weiterhin jeweils mit Kondensatoren 49, 50 verbunden, die gegen Masse 24 geschaltet sind. Die Kondensatoren 49, 50 wirken zusammen mit einem Kondensator 51, der an Eingangsleitungen zwischen den Eingängen 33, 34 liegt. Der Kondensator 51 ist in der Figur strichliniert eingetragen, weil er als Streukapazität zwischen Eingangsleitungen auftritt. Als diskretes Bauelement ist der Kondensator 51 nicht vorhanden.The inputs 33, 34 are also each connected to capacitors 49, 50, which are connected to ground 24. The capacitors 49, 50 act together with a capacitor 51 which is located on input lines between the inputs 33, 34. The capacitor 51 is shown in dashed lines in the figure because it occurs as stray capacitance between input lines. The capacitor 51 is not present as a discrete component.

Die erfindungsgemäße Vorrichtung zum Erfassen von Signalen arbeitet folgendermaßen:
Die Zündanlage 10 ist beispielsweise zum Betreiben einer in der Figur nicht gezeigten Brennkraftmaschine vorgesehen. Die Zündanlage 10 enthält mehr als eine Zündspule 12, 13. An der ersten Zündspule 12 sind beispielsweise zwei Zündkerzen 22, 23 angeschlossen, die gleichzeitig einen Funken abgeben. An der zweiten Zündspule 13 ist beispielsweise nur eine Zündkerze 25 angeschlossen. Die ersten Primäranschlüsse 14, 15 der Zündspulen 12, 13 sind mit den Zündungsschaltelementen 28, 29 gegen Masse 24 schaltbar. Die Zündanlage 10 ist nicht auf einen bestimmten Typ festgelegt. Es kann sich um eine Thyristor-, Transistor- oder Hochfrequenzzündanlage handeln.
The device according to the invention for detecting signals works as follows:
The ignition system 10 is provided, for example, for operating an internal combustion engine (not shown in the figure). The ignition system 10 contains more than one ignition coil 12, 13. For example, two spark plugs 22, 23 are connected to the first ignition coil 12, which simultaneously emit a spark. For example, only one spark plug 25 is connected to the second ignition coil 13. The first primary connections 14, 15 of the ignition coils 12, 13 can be switched to ground 24 using the ignition switching elements 28, 29. The ignition system 10 is not limited to any particular type. It can be a thyristor, transistor or high-frequency ignition system.

Als Signalquellen, an denen Signale erfaßt werden sollen, sind beispielsweise die ersten Primäranschlüsse 14, 15 der Zündspulen 12, 13 vorgesehen, die Abgriffe 31, 32 aufweisen zum Anschließen der Diagnosevorrichtung 11. Anstelle der in der Figur gezeigten zwei Eingänge 33, 34 der Diagnosevorrichtung 11 sind beliebig viele weitere Eingänge vorsehbar. Die erste Gruppe von Entkopplungsmitteln 35, 36, die vorzugsweise als Dioden realisiert sind, führen die an den Eingängen 33, 34 liegenden Signale an der ersten Signalzusammenführungsstelle 37 zusammen, während die zweite Gruppe 38, 39 von Entkopplungsmitteln 38, 39, die ebenfalls vorzugsweise als Dioden realisiert sind, die Signale an der zweiten Signalzusammenführungsstelle 40 zusammenführen. Die erste Diodengruppe 35, 36 führt die Eingangssignale 33, 34 zusammen, die positiv und die zweite Diodengruppe 38, 39 führt die Eingangssignale 33, 34 zusammen, die negativ gegenüber einem Bezugspotential sind. Das Bezugspotential selbst sowie erforderliche Arbeitswiderstände der Dioden 35, 36; 38, 39 sind aus Vereinfachungsgründen in der Figur nicht gezeigt. Die Schaltmittel 45 führen entweder das an der ersten oder an der zweiten Signalzusammenführungsstelle 37, 40 liegende zusammengeführte Signal dem zweiten Eingang 44 der signalverarbeitenden Anordnung 43 zu. Das Schaltmittel 45 ist entweder manuell oder elektrisch betätigbar. Es könnte beispielsweise in Abhängigkeit von dem an der ersten oder zweiten Signalzusammenführungsstelle 37, 40 liegenden Potential gesteuert sein. Ferner ist es möglich, die ersten Schaltmittel 45 von der signalverarbeitenden Anordnung 43 aus zu steuern.The first primary connections 14, 15 of the ignition coils 12, 13 are provided as signal sources, at which signals are to be recorded, and have taps 31, 32 for connecting the diagnostic device 11. Instead of the two inputs 33, 34 of the diagnostic device shown in the figure 11 any number of additional inputs can be provided. The first group of decoupling means 35, 36, which are preferably implemented as diodes, bring the signals at the inputs 33, 34 together at the first signal combining point 37, while the second group 38, 39 of decoupling means 38, 39, which also preferably as Diodes are implemented which combine signals at the second signal combining point 40. The first diode group 35, 36 combines the input signals 33, 34, which are positive, and the second diode group 38, 39 combines the input signals 33, 34, which are negative with respect to a reference potential. The reference potential itself and the required working resistances of the diodes 35, 36; 38, 39 are not shown in the figure for reasons of simplification. The switching means 45 either feed the combined signal located at the first or at the second signal combining point 37, 40 to the second input 44 of the signal processing arrangement 43. The switching means 45 can be operated either manually or electrically. For example, it could be controlled as a function of the potential at the first or second signal combination point 37, 40. Furthermore, it is possible to control the first switching means 45 from the signal processing arrangement 43.

Die signalverarbeitende Anordnung 43 führt eine Signalauswertung in Abhängigkeit von einem Signal durch, das aus den an den Eingängen 33, 34 liegenden Signalen zusammengesetzt ist.The signal processing arrangement 43 carries out a signal evaluation as a function of a signal which is composed of the signals at the inputs 33, 34.

Weiterhin sind die an den Eingängen 33, 34 liegenden Signale den Auswahlmitteln 41 zugeleitet, die aus den Eingangssignalen eines auswählen und am Ausgang 42 bereitstellen. Die Auswahlmittel 41 werden als Multiplexer, insbesondere als Analogsignal-Multiplexer bezeichnet. In Abhängigkeit von einem am Eingang 46 des Multiplexers 41 liegenden Steuersignal wird eines der Eingangssignale an den Ausgang 42 durchgeschaltet. Die Auswahl kann beispielsweise von einer Bedienperson über die Handeingabe 48 direkt erfolgen. Zusätzlich oder unabhängig davon kann die Eingangssignalauswahl im Multiplexer 41 auch von der signalverarbeitenden Anordnung 43 über ein am Ausgang 47 liegendes Steuersignal erfolgen. Die von der Anordnung 43 getroffene Auswahl kann beispielsweise in Abhängigkeit von bestimmten Diagnoseroutinen vorgesehen sein. Ferner kann die signalverarbeitende Anordnung 43 eine weitere, in der Figur nicht gezeigte Handeingabe zum gezielten Heraussuchen eines Signals enthalten. Das am Ausgang 42 liegende Signal, das genau einem Eingangssignal entspricht, kann in der signalverarbeitenden Anordnung, der es als erstes Eingangssignal zugeführt wird, gleichzeitig mit dem am zweiten Eingang 44 liegenden zusammengeführten Signal analysiert werden.Furthermore, the signals at the inputs 33, 34 are fed to the selection means 41, which select one from the input signals and make them available at the output 42. The selection means 41 are referred to as multiplexers, in particular as analog signal multiplexers. Depending on a control signal at input 46 of multiplexer 41, one of the input signals is switched through to output 42. The selection can, for example, be made directly by an operator via the manual input 48. In addition or independently of this, the input signal selection in the multiplexer 41 can also be carried out by the signal processing arrangement 43 via a control signal at the output 47. The selection made by the arrangement 43 can be provided, for example, as a function of certain diagnostic routines. Furthermore, the signal processing arrangement 43 can contain a further manual input, not shown in the figure, for the targeted search for a signal. The signal at the output 42, which corresponds exactly to an input signal, can be analyzed in the signal processing arrangement to which it is supplied as the first input signal, simultaneously with the combined signal at the second input 44.

Die erfindungsgemäße Vorrichtung zum Erfassen von Signalen ist mit Vorteil überall dort einzusetzen, wo die an mehr als einer Signalquelle abzugreifenden Signale gleichzeitig sowohl zusammengeführt als auch einzeln analysiert werden sollen. Insbesondere ist die erfindungsgemäße Vorrichtung zur Verwendung bei einer Diagnose für Kraftfahrzeuge geeignet. Dieser Anwendung treten häufig mehrere Signale auf, die über die in den Kraftfahrzeugen vorhandenen Einrichtungen miteinander gekoppelt sind.The device according to the invention for acquiring signals can advantageously be used wherever the signals to be tapped from more than one signal source are to be combined and analyzed individually at the same time. In particular, the device according to the invention is suitable for use in the diagnosis of motor vehicles. In this application, multiple signals often occur, which are coupled to one another via the devices present in the motor vehicles.

Insbesondere geeignet ist die erfindungsgemäße Vorrichtung zur Verwendung bei der Diagnose an Zündanlagen 10 mit mehr als einer Zündspule. In dieser Anwendung wird aus den an den Signalzusammenführungsstellen 37, 40 vorhandenen Signalen beispielsweise die Drehzahl, der Rundlauf oder die Gesamtheit der Zündvorgänge der Brennkraftmaschine dargestellt. Mit der ersten Diodengruppe 35, 36 sind insbesondere die Signale auszuwerten, die während der Öffnungsphase der Zündungsschaltelemente 28, 29 auftreten, während die mit der zweiten Diodengruppe 38, 39 zusammengeführten Signale eine Diagnose während der Schließphase der Elemente 28, 29 gestattet. Bei bestimmten Diagnoseroutinen ist gleichzeitig die Analyse von einzelnen, an den Eingängen 33, 34 liegenden Signale wünschenswert oder erforderlich. Beispielsweise ist eine Spannungsmessung am ersten oder zweiten Abgriff 31, 32 vorgesehen. Mit dieser Spannungsmessung kann beispielsweise die Restspannung während der Schließphase der Elemente 28, 29 gemessen werden. Die Signale an den Eingängen 33, 34 werden vom Multiplexer 41 unverfälscht an dessen Ausgang 42 weitergeleitet. Zusätzliche Anschlüsse an den Signalquellen sind nicht erforderlich. Außer einer präzisen Spannungsmessung ist auch eine zeitliche Analyse der an den Eingängen 33, 34 liegenden Signale möglich. Im Beispiel der Diagnose von Zündanlagen sind die Schließphasen der Elemente 28, 29 jeweils getrennt auswertbar. Eine derartige Auswertung wäre mit den nur an den Signalzusammenführungsstellen 37, 40 liegenden Signalen nicht in allen Betriebszuständen möglich, weil bei hohen Drehzahlen eine Überlappung der Schließphasen der Elemente 28, 29 auftreten kann, die eine präzise Auswertung verhindert.The device according to the invention is particularly suitable for use in the diagnosis of ignition systems 10 with more than one ignition coil. In this application, the speed, the concentricity or the totality of the ignition processes of the internal combustion engine are represented from the signals present at the signal combination points 37, 40. The first diode group 35, 36 is used in particular to evaluate the signals which occur during the opening phase of the ignition switching elements 28, 29, while the signals combined with the second diode group 38, 39 permit diagnosis during the closing phase of the elements 28, 29. With certain diagnostic routines, the analysis of individual signals at the inputs 33, 34 is simultaneously desirable or necessary. For example, a voltage measurement is provided on the first or second tap 31, 32. With this voltage measurement, for example, the residual voltage can be measured during the closing phase of the elements 28, 29. The signals at the inputs 33, 34 are passed on to the output 42 by the multiplexer 41 in an unadulterated manner. Additional connections to the signal sources are not required. In addition to a precise voltage measurement, a temporal analysis of the signals at the inputs 33, 34 is also possible. In the example of the diagnosis of ignition systems, the closing phases of the elements 28, 29 can each be evaluated separately. Such an evaluation would not be possible in all operating states with the signals only at the signal merging points 37, 40, because at high speeds the elements 28, 29 may overlap, which prevents precise evaluation.

Die Leitungen, die die Abgriffe 31, 32 mit den Eingängen 33, 34 verbinden, sind aus Kostengründen vorzugsweise einfache Kabel ohne Abschirmung. Zwischen diesen Leitungen treten kapazitive Kopplungen auf, die in der Figur durch den Kondensator 51 symbolisch eingetragen sind. Die kapazitive Kopplung führt zu einem Übersprechen von Signalen von einer auf die andere Leitung, was insbesondere bei nicht angeschlossenen Leitungen zu Fehlinterpretationen eines vermeintlichen Meßergebnisses führen kann. Zur Reduzierung der Wirkung der kapazitiven Kopplung sind deshalb an den Eingängen 33, 34 Kondensatoren 49, 50 gegen Masse 24 geschaltet. Die Kondensatoren 49, 50 bilden mit dem Kondensator 51, der die Streukapazitäten repräsentiert, jeweils einen kapazitiven Spannungsteiler, der die an den Eingängen 33, 34 liegenden Signalanteile bei entsprechend offenen Eingängen gemäß dem Teilungsverhältnis reduziert. Diese kapazitive Spannungsteilung wirkt nicht auf die regulären Eingangssignale.The lines that connect the taps 31, 32 to the inputs 33, 34 are, for cost reasons, preferably simple cables without shielding. Capacitive couplings occur between these lines, which are symbolically entered in the figure by the capacitor 51. The capacitive coupling leads to crosstalk of signals from one line to the other, which can lead to misinterpretations of a supposed measurement result, especially when lines are not connected. To reduce the effect of the capacitive coupling, capacitors 49, 50 are therefore connected to ground 24 at the inputs 33, 34. The capacitors 49, 50 form with the capacitor 51, which represents the stray capacitances, a capacitive voltage divider, which reduces the signal components at the inputs 33, 34 with correspondingly open inputs according to the division ratio. This capacitive voltage division does not affect the regular input signals.

Claims (7)

Vorrichtung zum Erfassen von Signalen, die an mehr als einer Signalquelle abgreifbar sind und die an Eingängen der Vorrichtung als Eingangssignale vorliegen, mit Mitteln zum Zusammenführen der Signale, dadurch gekennzeichnet, daß zusätzlich Mittel (41) vorsehbar sind zur gleichzeitigen Auswahl eines der Eingangssignale (33, 34).Device for detecting signals which can be tapped from more than one signal source and which are present as inputs at the inputs of the device, with means for combining the signals, characterized in that additional means (41) can be provided for the simultaneous selection of one of the input signals (33 , 34). Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Auswahlmittel (41) über eine Handeingabe (48) manuell schaltbar sind.Device according to claim 1, characterized in that the selection means (41) can be switched manually via a manual input (48). Vorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Auswahlmittel (41) von einer signalverarbeitenden Anordnung (43) schaltbar sind, die die an wenigstens einer Signalzusammenführungsstelle (37, 40) zusammengeführten Eingangssignale (33) und/oder ein an einen Ausgang (42) der Auswahlmittel (41) durchgeschaltetes Eingangssignal (33, 34) auswertet.Apparatus according to claim 1 or 2, characterized in that the selection means (41) can be switched by a signal processing arrangement (43) which detects the input signals (33) combined at at least one signal combining point (37, 40) and / or an output ( 42) of the selection means (41) evaluates the input signal (33, 34). Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß als Mittel zum Zusammenführen der Eingangssignale (33, 34) eine erste und zweite Gruppe (35, 36; 38, 39) von Dioden vorgesehen sind.Device according to one of the preceding claims, characterized in that a first and second group (35, 36; 38, 39) of diodes are provided as means for combining the input signals (33, 34). Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß an den Eingängen (33, 34) Kondensatoren (49, 50) vorgesehen sind, die mit zwischen den Eingängen (33, 34) auftretenden Streukapazitäten (51) kapazitive Spannungsteiler bilden.Device according to one of the preceding claims, characterized in that capacitors (49, 50) are provided at the inputs (33, 34) which form capacitive voltage dividers with stray capacitances (51) occurring between the inputs (33, 34). Vorrichtung nach einem der vorhergehenden Ansprüche, gekennzeichnet durch die Verwendung bei einer Diagnose von Kraftfahrzeugen.Device according to one of the preceding claims, characterized by use in the diagnosis of motor vehicles. Vorrichtung nach einem der vorhergehenden Ansprüche, gekennzeichnet durch die Verwendung bei der Diagnose von Zündanlagen (10), insbesondere von Zündanlagen (10) mit mehr als einer Zündspule (12, 13) als Signalquellen.Device according to one of the preceding claims, characterized by the use in the diagnosis of ignition systems (10), in particular ignition systems (10) with more than one ignition coil (12, 13) as signal sources.
EP91119400A 1991-02-04 1991-11-14 Signal acquisition device Expired - Lifetime EP0498046B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4103310A DE4103310A1 (en) 1991-02-04 1991-02-04 DEVICE FOR DETECTING SIGNALS
DE4103310 1991-02-04

Publications (3)

Publication Number Publication Date
EP0498046A2 true EP0498046A2 (en) 1992-08-12
EP0498046A3 EP0498046A3 (en) 1993-02-10
EP0498046B1 EP0498046B1 (en) 1999-02-03

Family

ID=6424348

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91119400A Expired - Lifetime EP0498046B1 (en) 1991-02-04 1991-11-14 Signal acquisition device

Country Status (3)

Country Link
EP (1) EP0498046B1 (en)
DE (2) DE4103310A1 (en)
ES (1) ES2129024T3 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4242177A1 (en) * 1992-12-15 1994-06-16 Teves Gmbh Alfred Circuit arrangement for monitoring a large number of coils

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1568855A (en) * 1967-01-06 1969-05-30
GB2064137A (en) * 1979-11-27 1981-06-10 Ti Crypton Ltd Engine analyser
US4306187A (en) * 1979-12-04 1981-12-15 Kinder Joseph C Apparatus for visually monitoring ignition voltages
GB2116329A (en) * 1982-03-10 1983-09-21 Daimler Benz Ag Apparatus for recognising misfiring in an external ingition internal combustion machine
GB2172115A (en) * 1985-03-07 1986-09-10 Fki Crypton Limited Ignition analysers
US4724702A (en) * 1986-12-08 1988-02-16 General Motors Corporation LPP sensor interface circuit
US4758791A (en) * 1986-11-28 1988-07-19 United Technologies Corporation Universal secondary high voltage sensor
EP0307503A1 (en) * 1986-03-10 1989-03-22 Cross-Check Technology, Inc. A grid-based, "cross-check" test structure for testing integrated circuits
US4847563A (en) * 1988-07-12 1989-07-11 Snap-On Tools Corporation Distributorless ignition interface
DE3841739A1 (en) * 1988-12-10 1990-06-13 Bosch Gmbh Robert Device for detecting ignition signals

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1540268A (en) * 1975-12-16 1979-02-07 Sun Electric Corp Engine test and display apparatus
DE2723536C3 (en) * 1977-05-25 1980-10-23 Daimler-Benz Ag, 7000 Stuttgart Device for testing various types of cable sets
DE3009997A1 (en) * 1980-03-13 1981-10-08 Siemens AG, 1000 Berlin und 8000 München Voltage limited active capacitive voltages divider - has varistor limiters in parallel with earth connected auxiliary capacitors
US4825392A (en) * 1986-08-20 1989-04-25 Freeman Mark S Dual function DMM display

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1568855A (en) * 1967-01-06 1969-05-30
GB2064137A (en) * 1979-11-27 1981-06-10 Ti Crypton Ltd Engine analyser
US4306187A (en) * 1979-12-04 1981-12-15 Kinder Joseph C Apparatus for visually monitoring ignition voltages
GB2116329A (en) * 1982-03-10 1983-09-21 Daimler Benz Ag Apparatus for recognising misfiring in an external ingition internal combustion machine
GB2172115A (en) * 1985-03-07 1986-09-10 Fki Crypton Limited Ignition analysers
EP0307503A1 (en) * 1986-03-10 1989-03-22 Cross-Check Technology, Inc. A grid-based, "cross-check" test structure for testing integrated circuits
US4758791A (en) * 1986-11-28 1988-07-19 United Technologies Corporation Universal secondary high voltage sensor
US4724702A (en) * 1986-12-08 1988-02-16 General Motors Corporation LPP sensor interface circuit
US4847563A (en) * 1988-07-12 1989-07-11 Snap-On Tools Corporation Distributorless ignition interface
DE3841739A1 (en) * 1988-12-10 1990-06-13 Bosch Gmbh Robert Device for detecting ignition signals

Also Published As

Publication number Publication date
ES2129024T3 (en) 1999-06-01
DE4103310A1 (en) 1992-08-06
EP0498046A3 (en) 1993-02-10
EP0498046B1 (en) 1999-02-03
DE59109095D1 (en) 1999-03-18

Similar Documents

Publication Publication Date Title
EP0516633B1 (en) Process and device for monitoring the functioning of an electrical consumer
DE69432829T2 (en) Cable identification device for testing cables in local networks
EP0561807B1 (en) Signal-acquisition device
EP0472877B1 (en) Apparatus to determine the rotational speed of an internal combustion engine
EP0140057B1 (en) Method and device for signal transmission
EP0498046B1 (en) Signal acquisition device
DE3706786C1 (en) Device for monitoring at least two electrical loads in motor vehicles
DE4018895C2 (en) Diagnostic device
DE2431799A1 (en) Signal processing cct. for Otto engine ignition - has pick-up for ignition current in cable for first cylinder galvanically divided from meter
EP0596233B1 (en) High voltage signals detection device
DE3841739C2 (en)
DE102018212022A1 (en) Method and device for predictive diagnosis of an electrical system of a vehicle
DE3010783A1 (en) CIRCUIT ARRANGEMENT FOR A TELECOMMUNICATION SYSTEM FOR MEASURING THE MAXIMUM LEVEL OF A CODED SIGNAL
DE102019203687A1 (en) Method for diagnosing exhaust gas sensors
EP0496050B1 (en) Testing device of ignition installation
DE102019200318A1 (en) Resolver circuit
EP0529281B1 (en) Method of detecting a contacting of measuring leads
DE102008045961B4 (en) Interface for multiple receivers and a resistor chain
DE10027184B4 (en) Arrangement and method for impact detection in a vehicle
DE102022201447A1 (en) Procedure for testing the electromagnetic compatibility of a test object with a test device, test device
DE3332384A1 (en) Circuit arrangement for conditioning signals
DE19922747C2 (en) Device for detecting an ion current for an internal combustion engine
DE3116080C2 (en)
EP0540878A2 (en) Method for evaluating ignition pulses
WO2020035250A1 (en) Transformer having a test circuit

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): CH DE ES FR GB IT LI SE

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): CH DE ES FR GB IT LI SE

17P Request for examination filed

Effective date: 19930707

17Q First examination report despatched

Effective date: 19941012

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): CH DE ES FR GB IT LI SE

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

Ref country code: CH

Ref legal event code: NV

Representative=s name: SCINTILLA AG, DIREKTION

REF Corresponds to:

Ref document number: 59109095

Country of ref document: DE

Date of ref document: 19990318

ET Fr: translation filed
ITF It: translation for a ep patent filed

Owner name: STUDIO JAUMANN P. & C. S.N.C.

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 19990408

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2129024

Country of ref document: ES

Kind code of ref document: T3

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20041118

Year of fee payment: 14

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 20041123

Year of fee payment: 14

Ref country code: SE

Payment date: 20041123

Year of fee payment: 14

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 20041125

Year of fee payment: 14

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20051115

Ref country code: SE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20051115

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20051130

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20051130

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

EUG Se: european patent has lapsed
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20060731

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20060731

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20051115

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20101123

Year of fee payment: 20

Ref country code: IT

Payment date: 20101124

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20110125

Year of fee payment: 20

REG Reference to a national code

Ref country code: DE

Ref legal event code: R071

Ref document number: 59109095

Country of ref document: DE

REG Reference to a national code

Ref country code: DE

Ref legal event code: R071

Ref document number: 59109095

Country of ref document: DE

REG Reference to a national code

Ref country code: GB

Ref legal event code: PE20

Expiry date: 20111113

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20111113

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20111115