WO1989001093A1 - Device for controlling the combustion engine of a motor vehicle comprising a sensor system - Google Patents

Device for controlling the combustion engine of a motor vehicle comprising a sensor system Download PDF

Info

Publication number
WO1989001093A1
WO1989001093A1 PCT/DE1988/000422 DE8800422W WO8901093A1 WO 1989001093 A1 WO1989001093 A1 WO 1989001093A1 DE 8800422 W DE8800422 W DE 8800422W WO 8901093 A1 WO8901093 A1 WO 8901093A1
Authority
WO
WIPO (PCT)
Prior art keywords
receiving element
combustion engine
motor vehicle
power supply
internal combustion
Prior art date
Application number
PCT/DE1988/000422
Other languages
German (de)
French (fr)
Inventor
Heinz-Günther JOOS
Richard Schleupen
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 WO1989001093A1 publication Critical patent/WO1989001093A1/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/24—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means
    • F02D41/26—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means using computer, e.g. microprocessor
    • F02D41/28—Interface circuits
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
    • G01P3/42—Devices characterised by the use of electric or magnetic means
    • G01P3/44—Devices characterised by the use of electric or magnetic means for measuring angular speed
    • G01P3/48—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage
    • G01P3/481—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage of pulse signals
    • G01P3/486—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage of pulse signals delivered by photo-electric detectors
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
    • G01P3/42—Devices characterised by the use of electric or magnetic means
    • G01P3/44—Devices characterised by the use of electric or magnetic means for measuring angular speed
    • G01P3/48—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage
    • G01P3/481—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage of pulse signals
    • G01P3/488—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage of pulse signals delivered by variable reluctance detectors

Definitions

  • the invention is based on a device for controlling the internal combustion engine of a motor vehicle with a sensor system according to the preamble of claim 1.
  • physical quantities are transmitted to a control device with the aid of optical fibers.
  • Occurring electromagnetic interference signals which act on the sensor or are caused by its power supply unit, are, however, also transmitted and can thereby falsify the control.
  • the device according to the invention with the characterizing features of claim 1 has the advantage that the influence of electromagnetic interference signals is largely eliminated.
  • the voltage of the receiving element can be tapped in a particularly simple manner and fed to a power supply unit for the electro-optical converters. No additional external power source is required.
  • the power supply for the sensors and the vehicle electrical system are completely electrically isolated from each other.
  • the Power supply lines are relatively short, so that hardly any electromagnetic interference from interference signals from the vehicle electrical system or other sources of interference is possible.
  • the converters for the temperature sensor and the throttle valve potentiometer can also be supplied via the voltage source or via their own voltage source.
  • FIG. 1 shows a schematic illustration of a device for controlling an ignition system of motor vehicles
  • FIGS. 2a-d show training with an incremental encoder and corresponding diagrams
  • figures 3a-e show training with a segment generator and corresponding diagrams .
  • 10 denotes an encoder disk, which rotates with the crankshaft or the camshaft of an internal combustion engine.
  • teeth 11 are formed on the circumference of the encoder disk 10, which are operatively connected to a spatially fixed receiving element 12.
  • the receiving element 12 consists of an iron core 13 and at least one coil 14. The type of interaction of the teeth 11 and the receiving element 12 can be very different. It is crucial that an electrical voltage is generated in the coil 14. Electrical lines 15 lead from the coil 14 to an electro-optical converter 16, which converts electrical measurement signal generated by the receiving element 12 into an operational signal. This optical signal is transmitted with the aid of a fiber-optic light guide 17 to an optoelectric converter 18, which is connected to a control unit 19 for the internal combustion engine.
  • Electrical lines 22 branch from lines 15 to a power supply unit 23 for converter 16.
  • a second coil (not shown in FIG. 1) around the iron core 13 of the receiving element 12, which then serves as a voltage source for the power supply unit 23 .
  • Additional electro-optical converters 24, 25 for the measurement signals of additional sensors can also be supplied by the power supply unit 23.
  • a temperature sensor 27 to determine the temperature of the intake air for mixture preparation.
  • the electrical measurement signals of the temperature sensor 27 are converted into an optical signal in the electro-optical converter 24 and fed to the converter 18 and the control unit 19 via a fiber-optic light guide 17.
  • the position of the throttle valve and thus the amount of air necessary for the combustion of the fuel can also be measured or controlled via a throttle valve potentiometer 28.
  • the electrical signal determined by the potentiometer 28 is converted into an optical signal in the converter 25 and transmitted to the converter 18 and the control unit 19 via a fiber-optic light guide 17.
  • the measurement signals transmitted in this way are evaluated in the control device 19, and the internal combustion engine is thereby regulated or controlled.
  • FIG. 2a shows an evaluation circuit 35 for an incremental encoder 36 for obtaining the electrical measurement signal and for converting it into an optical signal.
  • the same parts are included again labeled with the same numbers.
  • the receiving element 12a is designed as an induction transmitter and, in addition to the coil 14, has a permanent magnet 37 for signal amplification.
  • the evaluation circuit 35 has a Zener diode 38 and a light-emitting diode 39, which are connected in parallel to one another with opposite polarities.
  • the Zener diode 38 together with two resistors 40 connected in series, protects the light-emitting diode 39 from voltage peaks.
  • Figure 2b shows a development of the surface of the incremental encoder 36, i. H. teeth 42 and tooth gaps 43 are shown.
  • Figure 2c the voltage curve caused in the receiving element is plotted against the time t. It can be seen that the respective positive or negative stress maxima are located in the middle of the teeth 42 or the tooth gaps 43. Since, as is known, the light-emitting diode 39 is only permeable in one direction, a signal curve corresponding to FIG. 2d with positive or only with negative values results at the output of the light-emitting diode 39.
  • FIG. 3a shows a segment encoder 46 with segments 47 as the encoder disk.
  • an evaluation circuit 48 in turn has the receiving element 12a and two light-emitting diodes 49, 50 connected in parallel with opposite polarity.
  • a protective resistor 51 can also be omitted if the internal resistance of the induction generator 12a is correspondingly high choir- ".
  • FIG. 3b again shows a development of the surface of the segment encoder 46 with the segments 47 and the gaps between them.
  • the number of segments 47 corresponds to the number of cylinders or half the number of cylinders of the internal combustion engine, depending on whether the segment transmitter 46 is arranged on the crankshaft or the camshaft of the internal combustion engine. It can be seen from FIG. 3c that, depending on the polarity of the receiving element 12a, a positive one at the front edge of the segments 47 Voltage pulse and a negative voltage pulse is generated at the rear edge of the segments 47.
  • the optical output signals of the light emitting diodes 49 are shown in FIG. 3d and the optical output signals of the light emitting diode 50 are shown in FIG. 3e.
  • fiber optic light guide cables consist of several individual fibers. In the light guide 17 in FIG.
  • the individual bevels are combined to form two sub-cables 17a, 17b.
  • the optical output signals of the light-emitting diode 50 are transmitted via the partial cable 17a and the optical output signals of the light-emitting diode 49 are transmitted to the converter 18 via the partial cable 17b.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Combined Controls Of Internal Combustion Engines (AREA)
  • Optical Transform (AREA)

Abstract

Device for controlling an internal combustion engine of a motor vehicle comprising a sensor system with transmitting disc (10) rotating with a shaft and a receiving element (12) positioned opposite. The receiving element (12) contains a winding (14) which serves as a tap for the electrical impulses as well as a source of voltage for the power supply unit (23) of the electro-optical transformer (16). Through a fiber optic light conductor (17), the signal is directed to an opto-electrical transformer (18) and a control (19) for the internal combustion engine. The electromagnetic interference signals are thus largely inhibited from the motor vehicle's electrical supply system through the galvanic separation of the transformer's power unit (16).

Description

Vorrichtung zum Steuern der Brennkraftmaschine eines Kraftfahrzeugs mit einem Sensorsystem Device for controlling the internal combustion engine of a motor vehicle with a sensor system
Stand der TechnikState of the art
Die Erfindung geht aus von einer Vorrichtung zum Steuern der Brenn¬ kraftmaschine eines Kraftfahrzeugs mit einem Sensorsystem nach der Gattung des Anspruchs 1. Bei einer bekannten Vorrichtung werden mit Hilfe f seroptischer Lichtleiter physikalische Größen zu einer Steuereinrichtung übertragen. Auftretende elektromagnetische Stör¬ signale, die auf den Sensor einwirken bzw. durch dessen Stromver¬ sorgungseinheit hervorgerufen werden, werden dabei aber mit über¬ tragen und können dadurch die Steuerung verfälschen.The invention is based on a device for controlling the internal combustion engine of a motor vehicle with a sensor system according to the preamble of claim 1. In a known device, physical quantities are transmitted to a control device with the aid of optical fibers. Occurring electromagnetic interference signals, which act on the sensor or are caused by its power supply unit, are, however, also transmitted and can thereby falsify the control.
Vorteile der ErfindungAdvantages of the invention
Die erfindungsgemäße Vorrichtung mit den kennzeichnenden Merkmalen des Anspruchs 1 hat demgegenüber den Vorteil, daß der Einfluß von elektromagnetischen Störsignalen weitgehend eliminiert wird. In besonders einfacher Weise kann hierzu die Spannung des Aufnahme¬ elementes abgegriffen und einer Stromversorgungseinheit für die elektrooptischen Wandler zugeführt werden. Es ist keine zusätzliche externe Stromquelle notwendig. Die Stromversorgung der Sensoren und das Kfz-Bordnetz sind völlig galvanisch voneinander getrennt. Die Stromversorgungsleitungen sind relativ kurz, so daß kaum eine elek¬ tromagnetische Einstreuung von Störsignalen, durch das Kfz-Bordnetz oder anderer Störquellen möglich ist. Auch können die Wandler für den Temperatursensor und das Drosselklappenpotentiometer über die Spannungsquelle oder über jeweils eine eigene Spannungsquelle ver¬ sorgt werden.The device according to the invention with the characterizing features of claim 1 has the advantage that the influence of electromagnetic interference signals is largely eliminated. For this purpose, the voltage of the receiving element can be tapped in a particularly simple manner and fed to a power supply unit for the electro-optical converters. No additional external power source is required. The power supply for the sensors and the vehicle electrical system are completely electrically isolated from each other. The Power supply lines are relatively short, so that hardly any electromagnetic interference from interference signals from the vehicle electrical system or other sources of interference is possible. The converters for the temperature sensor and the throttle valve potentiometer can also be supplied via the voltage source or via their own voltage source.
Durch die in den Unteransprüchen aufgeführten Maßnahmen sind vor¬ teilhafte Weiterbildungen und Verbesserungen der im Hauptanspruch angegebenen Merkmale möglich.The measures listed in the subclaims enable advantageous further developments and improvements of the features specified in the main claim.
Zeichnungdrawing
Ausführungsbeispiele der Erfindung sind in der Zeichnung dargestellt und in der nachfolgenden Beschreibung näher erläutert. Es zeigen die Figur 1 eine schematische Darstellung einer Vorrichtung zum Steuern eines Zündsystems von Kraf fahrzeugen, Figuren 2a - d eine Ausbil¬ dung mit einem Inkre entgeber und entsprechender Diagramme und Fi¬ guren 3a - e eine Ausbildung mit einem Segmentgeber und entsprechen¬ der Diagramme.Embodiments of the invention are shown in the drawing and explained in more detail in the following description. FIG. 1 shows a schematic illustration of a device for controlling an ignition system of motor vehicles, FIGS. 2a-d show training with an incremental encoder and corresponding diagrams and figures 3a-e show training with a segment generator and corresponding diagrams .
Beschreibung der AusführungsbeispieleDescription of the embodiments
In Figur 1 ist mit 10 eine Geberscheibe bezeichnet, die mit der Kurbelwelle oder der Nockenwelle einer Brennkraftmaschine umläuft. Am Umfang der Geberscheibe lO^sind in regelmäßigen Abständen Zähne 11 ausgebildet, die mit einem raumfesten Aufnahmeelement 12 in Wirk¬ verbindung stehen. Das Aufnahmeelement 12 besteht aus einem Eisen¬ kern 13 und mindestens einer Spule 14. Die Art der Wechselwirkung der Zähne 11 und des Aufnahmeelements 12 kann dabei sehr verschie¬ denartig sein. Entscheidend ist dabei, daß in der Spule 14 eine elektrische Spannung erzeugt wird. Von der Spule 14 führen elek¬ trische Leitungen 15 zu einem elektrooptischen Wandler 16, der das vom Aufnahmeelement 12 erzeugte elektrische Meßsignal in ein op- r**v tisches Signal umwandelt. Dieses optische Signal wird mit Hilfe ei¬ nes faseroptischen Lichtleiters 17 zu einem optoelektrischen Wandler ° 18 übertragen, der mit einem Steuergerät 19 für die Brennkraftma¬ schine verbunden ist. Von den Leitungen 15 zweigen elektrische Lei¬ tungen 22 zu einer Stromversorgungseinheit 23 für den Wandler 16 ab. Statt die Spannung für die Stromversorgungseinheit 23 an den Leitun¬ gen 15 abzugreifen, ist es auch möglich, eine zweite, in der Figur 1 nicht dargestellte Spule um den Eisenkern 13 des Aufnahmeelements 12 anzuordnen, die dann als Spannungsquelle für die Stromversorgungs¬ einheit 23 dient.In FIG. 1, 10 denotes an encoder disk, which rotates with the crankshaft or the camshaft of an internal combustion engine. At regular intervals, teeth 11 are formed on the circumference of the encoder disk 10, which are operatively connected to a spatially fixed receiving element 12. The receiving element 12 consists of an iron core 13 and at least one coil 14. The type of interaction of the teeth 11 and the receiving element 12 can be very different. It is crucial that an electrical voltage is generated in the coil 14. Electrical lines 15 lead from the coil 14 to an electro-optical converter 16, which converts electrical measurement signal generated by the receiving element 12 into an operational signal. This optical signal is transmitted with the aid of a fiber-optic light guide 17 to an optoelectric converter 18, which is connected to a control unit 19 for the internal combustion engine. Electrical lines 22 branch from lines 15 to a power supply unit 23 for converter 16. Instead of tapping the voltage for the power supply unit 23 at the lines 15, it is also possible to arrange a second coil (not shown in FIG. 1) around the iron core 13 of the receiving element 12, which then serves as a voltage source for the power supply unit 23 .
Von der Stromversorgungseinheit 23 können auch noch zusätzliche elektrooptische Wandler 24, 25 für die Meßsignale zusätzlicher Sen¬ soren versorgt werden. Zum Beispiel ist es möglich, mit Hilfe eines Temperatursensors 27 die Temperatur der Ansaugluft zur Gemischaufbe¬ reitung zu bestimmen. Die elektrischen Meßsignale des Temperatursen¬ sors 27 werden im elektrooptischen Wandler 24 in ein optisches Si¬ gnal umgewandelt und über einen faseroptischen Lichtleiter 17 dem Wandler 18 und dem Steuergerät 19 zugeführt. Ferner kann auch über ein Drosselklappenpotentiometer 28 die Stellung der Drosselklappe und somit die zur Verbrennung des Kraftstoffs notwendige Luftmenge gemessen bzw. gesteuert werden. Das vom Potentiometer 28 ermittelte elektrische Signal wird, wie bereits oben für den Temperatursensor 27 beschrieben, im Wandler 25 in ein optisches Signal umgewandelt und über einen faseroptischen Lichtleiter 17 zum Wandler 18 und zum Steuergerät 19 übertragen. Im^Steuergerät 19 werden die so übertra¬ genen Meßsignale ausgewertet, und dadurch die Brennkraftmaschine ge¬ regelt bzw. gesteuert.Additional electro-optical converters 24, 25 for the measurement signals of additional sensors can also be supplied by the power supply unit 23. For example, it is possible to use a temperature sensor 27 to determine the temperature of the intake air for mixture preparation. The electrical measurement signals of the temperature sensor 27 are converted into an optical signal in the electro-optical converter 24 and fed to the converter 18 and the control unit 19 via a fiber-optic light guide 17. Furthermore, the position of the throttle valve and thus the amount of air necessary for the combustion of the fuel can also be measured or controlled via a throttle valve potentiometer 28. As already described above for the temperature sensor 27, the electrical signal determined by the potentiometer 28 is converted into an optical signal in the converter 25 and transmitted to the converter 18 and the control unit 19 via a fiber-optic light guide 17. The measurement signals transmitted in this way are evaluated in the control device 19, and the internal combustion engine is thereby regulated or controlled.
In Figur 2a ist eine AuswerteSchaltung 35 für einen Inkrementgeber 36 zur Gewinnung des elektrischen Meßsignals und zu dessen Umwand¬ lung in ein optisches Signal dargestellt. Gleiche Teile sind dabei wieder mit den gleichen Ziffern bezeichnet. Das Aufnahmeelement 12a ist als Induktionsgeber ausgebildet und weist neben der Spule 14 ei¬ nen Permanentmagneten 37 zur Signalverstärkung auf. Ferner hat die Auswerteschaltung 35 eine Zenerdiode 38 und eine Leuchtdiode 39, die parallel zueinander mit entgegengesetzter Polarität geschaltet sind. Die Zenerdiode 38 schützt zusammen mit zwei in Reihe geschalteten Widerständen 40 die Leuchtdiode 39 vor Spannungsspitzen.FIG. 2a shows an evaluation circuit 35 for an incremental encoder 36 for obtaining the electrical measurement signal and for converting it into an optical signal. The same parts are included again labeled with the same numbers. The receiving element 12a is designed as an induction transmitter and, in addition to the coil 14, has a permanent magnet 37 for signal amplification. Furthermore, the evaluation circuit 35 has a Zener diode 38 and a light-emitting diode 39, which are connected in parallel to one another with opposite polarities. The Zener diode 38, together with two resistors 40 connected in series, protects the light-emitting diode 39 from voltage peaks.
Figur 2b zeigt eine Abwicklung der Oberfläche des Inkrementgebers 36, d. h. die Zähne 42 und die Zahnlücken 43 sind dargestellt. In Figur 2c ist der im Aufnahmeelement hervorgerufene Spannungsverlauf über der Zeit t aufgetragen. Es ist ersichtlich, daß sich jeweils in der Mitte der Zähne 42 bzw. der Zahnlücken 43 die jeweiligen posi¬ tiven bzw..negativen Spannungsmaxima befinden. Da bekanntlich die Leuchtdiode 39 nur in einer Richtung durchlässig ist, ergibt sich am Ausgang der Leuchtdiode 39 ein Signalverlauf entsprechend Figur 2d mit positiven oder nur mit negativen Werten.Figure 2b shows a development of the surface of the incremental encoder 36, i. H. teeth 42 and tooth gaps 43 are shown. In Figure 2c the voltage curve caused in the receiving element is plotted against the time t. It can be seen that the respective positive or negative stress maxima are located in the middle of the teeth 42 or the tooth gaps 43. Since, as is known, the light-emitting diode 39 is only permeable in one direction, a signal curve corresponding to FIG. 2d with positive or only with negative values results at the output of the light-emitting diode 39.
Das Ausführungsbeispiel nach Figur 3a zeigt als Geberscheibe einen Segmentgeber 46 mit Segmenten 47. Bei Segmentgebern müssen zur Steuerung der Brennkraftmaschine die beiden Kanten der Segmente 47 erkannt werden. Eine Auswerteschaltung 48 weist hierzu wiederum das Aufnahmeelement 12a und zwei parallel mit entgegengesetzter Polari¬ tät geschaltete Leuchtdioden 49, 50 auf. Ein Schutzwiderstand 51 kann auch entfallen, wenn der Innenwiderstand des Induktionsgebers 12a entsprechend hoch gewählt-»wird. Figur 3b zeigt wieder eine Ab¬ wicklung der Oberfläche des Segmentgebers 46 mit den Segmenten 47 und den dazwischenliegenden Lücken. Die Anzahl der Segmente 47 ent¬ spricht dabei der Anzahl der Zylinder bzw. der halben Anzahl der Zy¬ linder der Brennkraftmaschine, je nachdem ob der Segmentgeber 46 an der Kurbelwelle oder der Nockenwelle der Brennkraftmaschine angeord¬ net ist. Aus Figur 3c ist ersichtlich, daß je nach Polung des Auf¬ nahmeelements 12a an der Vorderkante der Segmente 47 ein positiver Spannungsimpuls und an der Hinterkante der Segmente 47 ein negativer Spannungsi puls erzeugt wird. Die optischen Ausgangssignale der Leuchtdioden 49 sind in Figur 3d und die optischen Ausgangssignale der Leuchtdiode 50 sind in Figur 3e dargestellt. Faseroptische Lichtleitkabel bestehen bekanntlich aus mehreren Einzelfasern. Beim Lichtleiter 17 in Figur 3a sind die Einzelfasen zu zwei Teilkabeln 17a, 17b zusammengefaßt. Hier werden über das Teilkabel 17a die op¬ tischen Ausgangssignale der Leuchtdiode 50 und über das Teilkabel 17b die optischen AusgangsSignale der Leuchtdiode 49 zum Wandler 18 übertragen. Durch die Trennung der Stromversorgung des Wandlers 16 bzw. der Wandler 24, 25 vom Bordnetz des Kraftfahrzeugs können elek¬ tromagnetische Störsignale weitgehend ausgeschaltet werden. In be¬ sonders einfacher Weise kann zur Stromversorgung der Induktionsgeber 12 in Doppelfunktion verwendet werden. Dadurch sind auch die elek¬ trischen Zuleitungen sehr verkürzt. The exemplary embodiment according to FIG. 3a shows a segment encoder 46 with segments 47 as the encoder disk. In the case of segment encoders, the two edges of the segments 47 must be recognized in order to control the internal combustion engine. For this purpose, an evaluation circuit 48 in turn has the receiving element 12a and two light-emitting diodes 49, 50 connected in parallel with opposite polarity. A protective resistor 51 can also be omitted if the internal resistance of the induction generator 12a is correspondingly high gewählt- ". FIG. 3b again shows a development of the surface of the segment encoder 46 with the segments 47 and the gaps between them. The number of segments 47 corresponds to the number of cylinders or half the number of cylinders of the internal combustion engine, depending on whether the segment transmitter 46 is arranged on the crankshaft or the camshaft of the internal combustion engine. It can be seen from FIG. 3c that, depending on the polarity of the receiving element 12a, a positive one at the front edge of the segments 47 Voltage pulse and a negative voltage pulse is generated at the rear edge of the segments 47. The optical output signals of the light emitting diodes 49 are shown in FIG. 3d and the optical output signals of the light emitting diode 50 are shown in FIG. 3e. As is known, fiber optic light guide cables consist of several individual fibers. In the light guide 17 in FIG. 3a, the individual bevels are combined to form two sub-cables 17a, 17b. Here, the optical output signals of the light-emitting diode 50 are transmitted via the partial cable 17a and the optical output signals of the light-emitting diode 49 are transmitted to the converter 18 via the partial cable 17b. By isolating the power supply of the converter 16 or the converter 24, 25 from the vehicle electrical system, electromagnetic interference signals can largely be switched off. In a particularly simple manner, the induction transmitter 12 can be used in a double function for the power supply. As a result, the electrical supply lines are also very shortened.

Claims

Ansprüche Expectations
1. Vorrichtung zum Steuern der Brennkraftmaschine eines Kraftfahr¬ zeugs mit einem Sensorsystem, bei dem eine mit einer Welle der Brennkraftmaschine umlaufende Geberscheibe (10) mit einem raum¬ festen, mit einer Steuerschaltung (35) für die Zündung, Einspritzung oder dergleichen des Kraftfahrzeugs verbundenen Aufnahmeelements (12) in Wirkverbindung steht, und mit mindestens einem elektroop¬ tischen Wandler (16) und mit mindestens einem faseroptischen Licht¬ leiter (17), dadurch gekennzeichnet, daß der Wandler (16) einen ei¬ genen vom Bordnetz des Kraftfahrzeugs unabhängigen Stromkreis auf¬ weist.1. Device for controlling the internal combustion engine of a motor vehicle with a sensor system, in which a sensor disk (10) rotating with a shaft of the internal combustion engine is connected to a spatially fixed one, with a control circuit (35) for the ignition, injection or the like of the motor vehicle Receiving element (12) is in operative connection, and with at least one electro-optical converter (16) and with at least one fiber-optic light guide (17), characterized in that the converter (16) has its own circuit independent of the vehicle electrical system of the motor vehicle has.
2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Spannung einer Stromversorgungseinheit (23) des Wandlers (16) am Aufnahmeelement (12) abgegriffen wird.2. Device according to claim 1, characterized in that the voltage of a power supply unit (23) of the converter (16) on the receiving element (12) is tapped.
3. Vorrichtung nach Anspruch 1 und/oder 2, dadurch gekennzeichnet, daß das Aufnahmeelement (12) mindestens eine erste Spule (14) zum Abgriff des elektrischen Meßsignals und mindestens eine zweite Spule zum Abgriff der Spannung für die Stromversorgungseinheit (23) auf¬ weist. 3. Apparatus according to claim 1 and / or 2, characterized in that the receiving element (12) has at least a first coil (14) for tapping the electrical measurement signal and at least a second coil for tapping the voltage for the power supply unit (23) .
4. Vorrichtung nach einem der Ansprüche 1 bis 3, dadurch gekenn¬ zeichnet, daß die Spannung der Stromversorgungseinheiten für min- f destens einen weiteren elektrooptischen Wandler (24, 25) für Sen¬ soren (27, 28) mit Zusatzfunktionen am Aufnahmeelement (12) abge¬ griffen wird.4. Device according to one of claims 1 to 3, characterized gekenn¬ characterized in that the voltage of the power supply units for at least f at least one further electro-optical converter (24, 25) for sensors (27, 28) with additional functions on the receiving element (12th ) is tapped.
5. Vorrichtung nach einem der Ansprüche 1 bis 3, dadurch gekenn¬ zeichnet, daß an die Stromversorgungseinheit (23) mindestens ein weiterer elektrooptischer Wandler (24, 25) für Sensoren (27, 28) mit Zusatzfunktionen angeschlossen ist.5. Device according to one of claims 1 to 3, characterized gekenn¬ characterized in that at least one further electro-optical converter (24, 25) for sensors (27, 28) with additional functions is connected to the power supply unit (23).
6. Vorrichtung nach einem der Ansprüche 1 bis 5, dadurch gekenn¬ zeichnet, daß die Geberscheibe (10) am Außenumfang in regelmäßigen Abständen Zähne (42) aufweist.6. Device according to one of claims 1 to 5, characterized gekenn¬ characterized in that the encoder disc (10) on the outer circumference at regular intervals has teeth (42).
7. Vorrichtung nach einem der Ansprüche 1 bis 5, dadurch gekenn¬ zeichnet, daß die Geberscheibe (10) am Außenumfang in regelmäßigen Abständen Segmente (47) aufweist. 7. Device according to one of claims 1 to 5, characterized gekenn¬ characterized in that the encoder disc (10) on the outer circumference at regular intervals has segments (47).
PCT/DE1988/000422 1987-08-06 1988-07-07 Device for controlling the combustion engine of a motor vehicle comprising a sensor system WO1989001093A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19873726147 DE3726147A1 (en) 1987-08-06 1987-08-06 DEVICE FOR CONTROLLING THE INTERNAL COMBUSTION ENGINE OF A MOTOR VEHICLE WITH A SENSOR SYSTEM
DEP3726147.9 1987-08-06

Publications (1)

Publication Number Publication Date
WO1989001093A1 true WO1989001093A1 (en) 1989-02-09

Family

ID=6333203

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE1988/000422 WO1989001093A1 (en) 1987-08-06 1988-07-07 Device for controlling the combustion engine of a motor vehicle comprising a sensor system

Country Status (3)

Country Link
DE (1) DE3726147A1 (en)
ES (1) ES2008558A6 (en)
WO (1) WO1989001093A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0594550A1 (en) * 1992-10-19 1994-04-27 Ab Skf Method and device in a bearing

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10216379A1 (en) * 2002-04-12 2003-10-30 Conducta Endress & Hauser Measuring device for liquid and / or gas analysis
GB2458500A (en) * 2008-03-20 2009-09-23 Hybrid Comb Ltd A method of and system for fuel injected internal combustion engines

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3126023A1 (en) * 1981-07-02 1983-01-13 Volkswagenwerk Ag, 3180 Wolfsburg "ARRANGEMENT FOR OBTAINING MOTION INFORMATION, IN PARTICULAR SPEED INFORMATION IN A MOTOR VEHICLE"
JPS595855A (en) * 1982-07-03 1984-01-12 Honda Motor Co Ltd Idle revolving number stabilizing device for internal-combustion engine
JPS6181103A (en) * 1984-09-25 1986-04-24 Mitsubishi Electric Corp Automatic train controller

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2627761A1 (en) * 1976-06-21 1977-12-29 Hermann Steinhauser IC engine ignition unit - uses contactless circuit breaker with rotating disc between light source and photocell
DE2641239A1 (en) * 1976-09-14 1978-03-16 Bosch Gmbh Robert CONTROL UNIT FOR THE TRIGGERING OF OPERATING PROCEDURES, IN PARTICULAR THE IGNITION OF COMBUSTION MACHINES

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3126023A1 (en) * 1981-07-02 1983-01-13 Volkswagenwerk Ag, 3180 Wolfsburg "ARRANGEMENT FOR OBTAINING MOTION INFORMATION, IN PARTICULAR SPEED INFORMATION IN A MOTOR VEHICLE"
JPS595855A (en) * 1982-07-03 1984-01-12 Honda Motor Co Ltd Idle revolving number stabilizing device for internal-combustion engine
JPS6181103A (en) * 1984-09-25 1986-04-24 Mitsubishi Electric Corp Automatic train controller

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
Patent Abstracts of Japan, Band 10, Nr. 253 (M512)(2309), 19. August 1986 & JP-A-61081103 (MITSUBISHI ELECTRIC CORP.) 24. April 1986 *
Patent Abstracts of Japan, Band 8, Nr. 90 (M-292)(1527), 25. April 1984 & JP-A-59005855 (HONDA GIKEN KOGYO K.K.) 12. Januar 1984 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0594550A1 (en) * 1992-10-19 1994-04-27 Ab Skf Method and device in a bearing

Also Published As

Publication number Publication date
DE3726147A1 (en) 1989-02-16
ES2008558A6 (en) 1989-07-16

Similar Documents

Publication Publication Date Title
DE3213589C2 (en) Torque sensor
EP0221383A1 (en) Test apparatus
EP2195616B1 (en) Pulse generator for a device, in particular for a tachograph and method for operating said pulse generator
DE102006061572A1 (en) Sensor's output signal coding method, involves determining rotation direction of shaft and partition ratio of tooth, and coding rotating direction and partition ratio as pulse width coded output signal
DE102008051083A1 (en) Multi-turn encoders
DE69908695T2 (en) "Cassette" type dynamic seal with angle measuring device; Procedure for their application
EP0607177A1 (en) Device for detecting the angular position of a rotating component.
EP0204985A2 (en) Feedback control apparatus for an internal-combustion engine
DE2643286A1 (en) Position detector for rotating shaft - has alternately directed permanent magnets on disc passing sensor, with additional inserted magnet as reference
DE4434977A1 (en) Active motion sensor
DE3126023A1 (en) "ARRANGEMENT FOR OBTAINING MOTION INFORMATION, IN PARTICULAR SPEED INFORMATION IN A MOTOR VEHICLE"
WO1989001093A1 (en) Device for controlling the combustion engine of a motor vehicle comprising a sensor system
EP1258711B1 (en) Angular position sensor, code disc and procedure to determine a reference value
DE2730737A1 (en) Odometer and speedometer for motor vehicle - has light source whose light is guided by light conductors to light modulator and photocell
EP1672325A2 (en) Method and system for recording characteristic parameters in position or angle sensors
DE3820903A1 (en) ELECTRIC MACHINE
EP0280696B1 (en) Device for controlling an internal combustion engine
DE2826609C2 (en) Device for the delivery of incremental impulses and a trigger impulse
EP0893003B1 (en) Electric motor
EP0323458B2 (en) Device for controlling an internal combustion engine
DE102011108226A1 (en) Method for operating hybrid drive system for use in motor vehicle, involves monitoring magnitude of current flowing to machine and detecting misfire of engine based on deviation of monitored magnitude of current from threshold value
DE2736576A1 (en) IGNITION SYSTEM WITH A MECHANICAL NON-MOVING HIGH VOLTAGE DISTRIBUTION
WO1983001354A1 (en) Pulse generator with magnetic polarisation reversal
DE3119414A1 (en) SIGNALER FOR SCANING RAILWAY TOKENS MOUNTED ON A COMPONENT RELATING TO THE SIGNALER
DE102013219796A1 (en) Pulse generator for a device for operating data acquisition, gear arrangement with a pulse generator, tachograph arrangement and method for generating an output signal for a device for operating data acquisition in a vehicle

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): JP US

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): AT BE CH DE FR GB IT LU NL SE