EP0230560A2 - Angle sensor arrangement - Google Patents

Angle sensor arrangement Download PDF

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Publication number
EP0230560A2
EP0230560A2 EP86116612A EP86116612A EP0230560A2 EP 0230560 A2 EP0230560 A2 EP 0230560A2 EP 86116612 A EP86116612 A EP 86116612A EP 86116612 A EP86116612 A EP 86116612A EP 0230560 A2 EP0230560 A2 EP 0230560A2
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EP
European Patent Office
Prior art keywords
signal
sensor
arrangement according
evaluation circuit
markings
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Granted
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EP86116612A
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German (de)
French (fr)
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EP0230560B1 (en
EP0230560A3 (en
Inventor
Ernst-Olav Dr. Dipl.-Ing. Pagel
Wilhelm Dipl.-Ing. Bois
Peter Dipl.-Ing. Duba
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Audi AG
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Audi AG
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
    • F02P7/00—Arrangements of distributors, circuit-makers or -breakers, e.g. of distributor and circuit-breaker combinations or pick-up devices
    • F02P7/06—Arrangements of distributors, circuit-makers or -breakers, e.g. of distributor and circuit-breaker combinations or pick-up devices of circuit-makers or -breakers, or pick-up devices adapted to sense particular points of the timing cycle
    • F02P7/067—Electromagnetic pick-up devices, e.g. providing induced current in a coil
    • F02P7/0675—Electromagnetic pick-up devices, e.g. providing induced current in a coil with variable reluctance, e.g. depending on the shape of a tooth
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B1/00—Engines characterised by fuel-air mixture compression
    • F02B1/02—Engines characterised by fuel-air mixture compression with positive ignition
    • F02B1/04—Engines characterised by fuel-air mixture compression with positive ignition with fuel-air mixture admission into cylinder

Definitions

  • the invention relates to an encoder arrangement for speed detection of the crankshaft angle on the internal combustion engine according to the preamble of claim 1.
  • Such sensor arrangements are used today as standard in internal combustion engines in order to deliver a cylinder signal for ignition timing controls which is in a fixed relationship to a predetermined position, for example the top dead center of a cylinder.
  • Such signals are usually generated by an aperture provided on the distributor, which carries cutouts which are detected with the aid of a Hall element.
  • a Hall element e.g., a Hall element
  • other encoder elements such as photocells, reed relays or the like are also possible.
  • Such encoder arrangements determine the position, for example, of the top dead center of a cylinder, but they are not able to generate cylinder-selective signals. To do this, it is necessary to inform the following logic in some form when the work cycle of a 720 ° crankshaft angle work sequence of an engine begins.
  • the object of the invention is to provide a sensor arrangement with which a reference cylinder of the internal combustion engine can be specifically assigned to a specific crankshaft angle position.
  • a sensor for detecting the marking is assigned a second sensor at a predetermined angular distance from the first sensor, and the signal from the second sensor, in comparison with the signal from the first sensor, provides information as to whether the two sensors are relative have detected short or relatively long marks on the signal transmitter.
  • a relatively longer mark, which is assigned to the reference signal, can thus be discriminated against by the shorter cylinder markings.
  • FIG. 1 a sensor arrangement according to the prior art is shown in supervision.
  • An aperture wheel 10 has markings 12, the number corresponding to the number of cylinders of the internal combustion engine.
  • a sensor or sensor 14 detects the passage of the marker 12 during the rotation of the aperture wheel 10 and emits a signal during the duration of the passage.
  • FIG. 2 shows the side view of such a construction, the sensor 14 being shown as a Hall element, which detects cutouts 12 in the aperture wheel 10.
  • an aperture wheel 10 is also provided which bears markings 12, each marking 12 covering an angular range ⁇ and generating a signal in passing 14 in the sensor 14, the duration of which is accordingly determined by the rotational speed of the aperture wheel 10 and the angle ⁇ .
  • a marking 18 assigned to a predetermined reference cylinder differs from the other markings 12 in size. It covers an angular range that is larger by an angle ⁇ than the angle ⁇ .
  • a second sensor 16 is provided, offset by an angle ⁇ to the sensor 14, which is identical in construction to the sensor 14.
  • the markings are preferably provided as recesses in a with a metallic diaphragm wheel, while the sensors 14 and 16 are designed as Hall elements.
  • Other pairings customary in the prior art such as openings and photocells, light sources and photocells, or phototransistors, magnets and read relays or the like can of course also be used.
  • Each of the markings 12 and 18 generates a signal S1 in the sensor 14 and a signal S2 in the sensor 16.
  • the signals S1 and S2 are determined in a subsequent evaluation circuit to generate the reference signal, which should only occur when the marker 18 passes by.
  • FIG. 4 shows a first simple evaluation circuit in which the signal S1 from the sensor 14 is fed to an input 20 and the signal S2 from the sensor 16 is fed to an input 22.
  • the signal 20 is tapped again at the output 24 and is used there as a speed signal, for example in order to be able to derive emergency running properties of the internal combustion engine. Since the signal S1 does not pass through any active components, a failure of the evaluation circuit does not affect the presence of the emergency operation signal.
  • the evaluation circuit is essentially formed by an AND gate 28, which detects when both the signal S1 and the signal S2 are present, and in this phase a reference signal is generated at the output 26.
  • the signals derived in FIG. 5 are based on an aperture wheel 10, the recess ⁇ of which corresponds to an angle of rotation of 30 ° of the camshaft and the angle ⁇ of which corresponds to an angle of 45 ° camshaft.
  • the signal S1 shown in FIG. 5a is fed to one input of the NAND gate 28, the signal S2 shown in FIG. 5b is identical to the signal S1 in FIG. 5a with regard to its signal sequence, but out of phase by the angle ⁇ .
  • the tuning of the angles ⁇ , ⁇ and ⁇ is such that only when the wider marking 18 passes the sensors 14 and 16 both sensors 14 and 16 simultaneously pick up a signal, as a result of which a signal occurs at the output of the NAND gate 28, which after renewed negation, can be tapped at the output as reference signal 26 and is correspondingly shown in FIG. 5c.
  • FIG. 6 shows a further embodiment of the evaluation circuit which is used to convert the reference double pulse shown in FIG. 5c into a unique reference pulse.
  • the signal S1 of the encoder 14 is applied to the input 20 of the circuit, the signal S2 of the encoder 18 to the input 22. As in the circuit according to FIG. 4, the signal at the input 20 is simultaneously present at the output 24 as a speed signal.
  • the signal from input 20 is set to the trigger input of a D flip-flop 30, which occurs every time the rear Edge of a marker 12 or 18 runs past the sensor 14, is triggered and thus the Q output of the D flip-flop only switches to the "high” state if, at the time of the positive trigger edge, the data input previously Had “low” status.
  • a pulse sequence thus arises at the output of the flip-flop, which changes to the "high” state only once per revolution of the diaphragm wheel encoder 10, specifically at the end of the slot C when its rear flank passes the sensor 14.
  • the speed signal tapped at the output 24 has a different width depending on the width of the markings 12 and 18, and thus an uneven duty cycle, since it is the simple connection of the signal S1 from the encoder 14.
  • Fig. 8 shows another evaluation circuit in which the speed signal has the same duty cycle if the angle ⁇ between the two sensors 14 and 16 is chosen equal to the angular width ⁇ of the markings A, B, D.
  • an input 20 and an input 22 are provided, to which the signals S1 and S2 of the sensors 14 and 16 are fed, the reference signal is tapped at the output of the circuit 26, the speed signal at the output 24.
  • a D flip-flop 36 is provided in the circuit, at the reset input of which signal S1 from input 20 is applied.
  • the D input of the flip-flop 36 receives the negated signal S1, and the clock input of the flip-flop 36 is supplied with the output signal of a NAND gate 34, at whose one input the negated signal S1 tapped at the gate 32 is present and on whose other input the signal S2 is present.
  • the output of this NAND gate 34 simultaneously provides the desired speed signal n at the output 24 of the evaluation circuit.
  • FIG. 9a the signal S1 from sensor 14 is shown
  • FIG. 9b the signal S2 from sensor 16 is shown poses.
  • 9c shows the signal present at the data input of the flip-flop 36, which is the negated signal from S1, that is is. Since the signal from FIG. 9b and the signal from FIG. 9c are respectively fed to the NAND gate 34 at the inputs, the signal in FIG. 9d is the signal present at the output of the NAND gate 34, which can be used as a speed signal , the clock ratio of the signal according to FIG. 9d being constant.
  • the inverted signal S1 is "low", so that the flip-flop 36 is not set by this signal when the clock input is activated.

Abstract

Es wird eine Geberanordung (10) zum Einsatz in einer Brennkraftmaschine beschrieben, mit Hilfe derer eine zylinderselektive Ansteuerung durch die Motorelektronik möglich ist. Dazu sind auf einem Signalgeber, üblicherweise der Verteilerblende, einem Zylinder ein längeres Sig­nal zugeordnet als den anderen Zylindern. Durch zwei winkelig zuein­ander angeordneten Sensoren (14, 16) wird das längere Signal als Referenz­signal ausgewertet.

Figure imgaf001
A sensor arrangement (10) for use in an internal combustion engine is described, with the aid of which cylinder-selective control by the engine electronics is possible. For this purpose, a signal is assigned to a cylinder on a signal transmitter, usually the distributor orifice, than a longer signal than the other cylinders. The longer signal is evaluated as a reference signal by two sensors (14, 16) arranged at an angle to one another.
Figure imgaf001

Description

Die Erfindung betrifft eine Geberanordnung zur Drehzahlerkennung des Kurbelwellenwinkels an der Brennkraftmaschine gemäß Oberbegriff des Anspruchs 1.The invention relates to an encoder arrangement for speed detection of the crankshaft angle on the internal combustion engine according to the preamble of claim 1.

Derartige Geberanordnungen werden heute in Brennkraftmaschinen se­rienmäßig verwendet, um für Zündzeitpunktsteuerungen oder -regelun­gen ein Zylindersignal zu liefern, das in fester Beziehung zu einer vorgegebenen Stellung, beispielsweise dem oberen Totpunkt, eines Zylinders steht.Such sensor arrangements are used today as standard in internal combustion engines in order to deliver a cylinder signal for ignition timing controls which is in a fixed relationship to a predetermined position, for example the top dead center of a cylinder.

Üblicherweise werden derartige Signale durch eine am Verteiler vorge­sehene Blende erzeugt, die Ausschnitte trägt, die mit Hilfe eines Hall-Elementes erfaßt werden. Selbstverständlich sind auch andere Geberelemente wie Fotozellen, Reedrelais oder ähnliches möglich.Such signals are usually generated by an aperture provided on the distributor, which carries cutouts which are detected with the aid of a Hall element. Of course, other encoder elements such as photocells, reed relays or the like are also possible.

Derartige Geberanordnungen legen zwar die Stellung beispielsweise des oberen Totpunktes eines Zylinders fest, sie sind jedoch nicht in der Lage, zylinderselektive Signale zu erzeugen. Dazu ist es not­wendig, der nachfolgenden Logik in irgendeiner Form mitzuteilen, wann der Arbeitstakt einer 720° Kurbelwellenwinkel dauernden Arbeits­abfolge eines Motors beginnt.Such encoder arrangements determine the position, for example, of the top dead center of a cylinder, but they are not able to generate cylinder-selective signals. To do this, it is necessary to inform the following logic in some form when the work cycle of a 720 ° crankshaft angle work sequence of an engine begins.

Aufgabe der Erfindung ist es, eine Geberanordnung zu schaffen, mit der ein Referenzzylinder der Brennkraftmaschine gezielt einer be­stimmten Kurbelwellenwinkelstellung zugeordnet werden kann.The object of the invention is to provide a sensor arrangement with which a reference cylinder of the internal combustion engine can be specifically assigned to a specific crankshaft angle position.

Die Aufgabe wird gelöst durch den Hauptanspruch.The task is solved by the main claim.

Erfindungsgemäß ist vorgesehen, daß dem einen Sensor zur Erfassung der Markierung noch ein zweiter Sensor im vorgegebenen Winkelabstand zum ersten Sensor zugeordnet wird, und das Signal des zweiten Sensors gibt im Vergleich mit dem Signal des ersten Sensors eine Auskunft darüber, ob die beiden Sensoren eine relativ kurze oder relativ längere Markierung auf dem Signalgeber erfaßt haben. Somit kann eine relativ längere Markierung, die dem Referenzsignal zugeordnet wird, von den kürzeren Zylindermarkierungen diskriminiert werden.According to the invention, it is provided that a sensor for detecting the marking is assigned a second sensor at a predetermined angular distance from the first sensor, and the signal from the second sensor, in comparison with the signal from the first sensor, provides information as to whether the two sensors are relative have detected short or relatively long marks on the signal transmitter. A relatively longer mark, which is assigned to the reference signal, can thus be discriminated against by the shorter cylinder markings.

Bevorzugte Ausführungsformen sind in den Unteransprüchen beschrieben. Die einzelnen Vorteile dieser jeweiligen Ausführungsformen wird in Verbindung mit den zugehörigen Zeichnungen detailliert dargestellt.Preferred embodiments are described in the subclaims. The individual advantages of these respective embodiments are shown in detail in conjunction with the associated drawings.

Im folgenden wird die Erfindung anhand der Zeichnungen näher darge­stellt. Es zeigen:

  • Fig. 1 die Darstellung eines Gebers gemäß Stand der Tech­nik in Aufsicht;
  • Fig. 2 die Vorrichtung nach Fig. 1 in Seitenansicht;
  • Fig. 3 die erfindungsgemäße Geberanordnung in Aufsicht;
  • Fig. 4 eine erste Auswerteschaltung zur Signalverarbeitung;
  • Fig. 5 eine Darstellung der in der Schaltung nach Fig. 4 auftretenden Signale;
  • Fig. 6 eine zweite Ausführungsform der Auswerteschaltung;
  • Fig. 7 eine Darstellung der in der Schaltung nach Fig. 6 auftretenden Signale;
  • Fig. 8 eine dritte Ausführungsform der Auswerteschaltung; und
  • Fig. 9 die in der Auswerteschaltung nach Fig. 8 auftre­tenden Signale.
The invention is illustrated in more detail below with reference to the drawings. Show it:
  • Figure 1 shows the representation of a sensor according to the prior art in supervision.
  • Fig. 2 shows the device of Figure 1 in side view.
  • 3 shows the sensor arrangement according to the invention in supervision;
  • 4 shows a first evaluation circuit for signal processing;
  • Fig. 5 is an illustration of the signals appearing in the circuit of Fig. 4;
  • 6 shows a second embodiment of the evaluation circuit;
  • Fig. 7 is an illustration of the signals appearing in the circuit of Fig. 6;
  • 8 shows a third embodiment of the evaluation circuit; and
  • 9 shows the signals occurring in the evaluation circuit according to FIG. 8.

In Fig. 1 ist eine Geberanordnung gemäß Stand der Technik in Auf­sicht gezeigt. Ein Blendenrad 10 besitzt Markierungen 12, wobei die Anzahl der Anzahl der Zylinder der Brennkraftmaschine entspricht. Ein Sensor oder Geber 14 erfaßt während der Umdrehung des Blenden­rades 10 das Vorbeilaufen der Markierung 12 und gibt während der Dauer des Vorbeilaufes ein Signal ab.In Fig. 1, a sensor arrangement according to the prior art is shown in supervision. An aperture wheel 10 has markings 12, the number corresponding to the number of cylinders of the internal combustion engine. A sensor or sensor 14 detects the passage of the marker 12 during the rotation of the aperture wheel 10 and emits a signal during the duration of the passage.

In Fig. 2 ist die Seitenansicht eines derartigen Aufbaus gezeigt, dabei ist der Sensor 14 als Hall-Element dargestellt, das Ausspa­rungen 12 im Blendenrad 10 erfaßt.2 shows the side view of such a construction, the sensor 14 being shown as a Hall element, which detects cutouts 12 in the aperture wheel 10.

Bei dieser Anordnung ist es nicht möglich, die Zuordnung zwischen der Markierung 12 und dem zugehörigen Zylinder der Brennkraftmaschi­ne eindeutig festzustellen.With this arrangement, it is not possible to unambiguously determine the association between the marking 12 and the associated cylinder of the internal combustion engine.

Zur Erfassung eines vorgegebenen Referenzzylinders ist der in Fig. 3 dargestellte Aufbau vorgesehen, bei dem eine der Markierungen sich von den anderen Markierungen unterscheidet, um dadurch ein Referenz­signal zu erzeugen.3, in which one of the markings differs from the other markings in order to thereby generate a reference signal.

Erfindungsgemäß ist ebenfalls ein Blendenrad 10 vorgesehen, das Mar­kierungen 12 trägt, wobei jede Markierung 12 einen Winkelbereich γ überdeckt und im Vorbeilauf in dem Sensor 14 ein Signal erzeugt, dessen Dauer sich dementsprechend aus der Umdrehungsgeschwindigkeit des Blendenrades 10 und der Winkel γ bestimmt.According to the invention, an aperture wheel 10 is also provided which bears markings 12, each marking 12 covering an angular range γ and generating a signal in passing 14 in the sensor 14, the duration of which is accordingly determined by the rotational speed of the aperture wheel 10 and the angle γ.

Eine einem vorbestimmten Referrenzzylinder zugeordnete Markierung 18 unterscheidet sich von den übrigen Markierungen 12 durch die Grö­ße. Sie überdeckt einen Winkelbereich, der um einen Winkel α größer ist als der Winkel γ.A marking 18 assigned to a predetermined reference cylinder differs from the other markings 12 in size. It covers an angular range that is larger by an angle α than the angle γ.

Weiterhin ist, um einen Winkel β zum Sensor 14 versetzt, ein zwei­ter Sensor 16 vorgesehen, der im Aufbau identisch dem Sensor 14 ist.Furthermore, a second sensor 16 is provided, offset by an angle β to the sensor 14, which is identical in construction to the sensor 14.

Wie in den Fig. 1 und 2 dargestellt, sind vorzugsweise die Markie­rungen als Aussparungen in einem mit metallischen Blendenrad vorge­sehen, während die Sensoren 14 und 16 als Hall-Elemente ausgeführt sind. Andere im Stand der Technik übliche Paarungen, wie Durchbrü­che und Fotozellen, Lichtquellen und Fotozellen, bzw. Fototransi­storen, Magnete und Readrelais oder ähnliches können selbstverständ­lich ebenfalls Verwendung finden.As shown in FIGS. 1 and 2, the markings are preferably provided as recesses in a with a metallic diaphragm wheel, while the sensors 14 and 16 are designed as Hall elements. Other pairings customary in the prior art, such as openings and photocells, light sources and photocells, or phototransistors, magnets and read relays or the like can of course also be used.

Jede der Markierungen 12 bzw. 18 erzeugt in dem Sensor 14 ein Signal S1, und in dem Sensor 16 ein Signal S2. Die Signale S1 bzw. S2 wer­den in einer nachfolgenden Auswerteschaltung dazu bestimmt, das Re­ferenzsignal, das immer nur bei dem Vorbeilauf der Markierung 18 auftreten soll, zu erzeugen.Each of the markings 12 and 18 generates a signal S1 in the sensor 14 and a signal S2 in the sensor 16. The signals S1 and S2 are determined in a subsequent evaluation circuit to generate the reference signal, which should only occur when the marker 18 passes by.

Die zugehörigen Auswerteschaltungen sowie der Signalverlauf in den Auswerteschaltungen werden unter Bezugnahme auf die folgenden Fi­guren beschrieben. Aus den Signalabläufen ergeben sich gleichzei­tig die Anforderungen, die an die Größenordnungen der Winkel α, β und γ zu stellen sind.The associated evaluation circuits and the signal curve in the evaluation circuits are described with reference to the following figures. The signal sequences also result in the requirements that have to be placed on the magnitudes of the angles α, β and γ.

Fig. 4 zeigt eine erste einfache Auswertschaltung, in der das Signal S1 vom Sensor 14 einem Eingang 20 und das Signal S2 vom Sensor 16 einem Eingang 22 zugeführt wird. Das Signal 20 wird gleichzeitig am Ausgang 24 wieder abgegriffen und dient dort als Drehzahlsignal, beispielsweise, um Notlaufeigenschaften der Brennkraftmaschine ab­leiten zu können. Da das Signal S1 keine aktiven Bauelemente durch­läuft, beeinträchtig einen Ausfall der Auswerteschaltung das Vor­handensein des Notlaufsignales nicht.4 shows a first simple evaluation circuit in which the signal S1 from the sensor 14 is fed to an input 20 and the signal S2 from the sensor 16 is fed to an input 22. The signal 20 is tapped again at the output 24 and is used there as a speed signal, for example in order to be able to derive emergency running properties of the internal combustion engine. Since the signal S1 does not pass through any active components, a failure of the evaluation circuit does not affect the presence of the emergency operation signal.

Die Auswertschaltung wird im wesentlichen gebildet durch ein Und-­Gatter 28, das erfaßt, wann sowohl das Signal S1 als auch das Signal S2 anliegen, und in dieser Phase wird ein Referenzsignal am Ausgang 26 erzeugt.The evaluation circuit is essentially formed by an AND gate 28, which detects when both the signal S1 and the signal S2 are present, and in this phase a reference signal is generated at the output 26.

Zum Verständnis der Schaltungen ist notwendig, darauf hinzuweisen, daß die Schaltungen in negativer Logik ausgelegt sind, so daß das Anliegen eines Signales durch den Zustand "low" repräsentiert wird.To understand the circuits, it is necessary to point out that the circuits are designed in negative logic, so that the presence of a signal is represented by the "low" state.

Die in Fig. 5 abgeleiteten Signale beruhen auf einem Blendenrad 10, dessen Aussparung α einem Drehwinkel von 30° der Nockenwelle ent­spricht und dessen Winkel β einen Winkel von 45° Nockenwelle ent­spricht.The signals derived in FIG. 5 are based on an aperture wheel 10, the recess α of which corresponds to an angle of rotation of 30 ° of the camshaft and the angle β of which corresponds to an angle of 45 ° camshaft.

Das in Fig. 5a dargestellte Signal S1 wird dem einen Eingang des NAND-Gatters 28 zugeführt, das in Fig. 5b dargestellte Signal S2 ist identisch mit dem Signal S1 in Fig. 5a im Hinblick auf seine Signalabfolge, jedoch phasenversetzt um den Winkel β. Die Abstim­mungen der Winkel α, β und γ ist so, daß nur bei Vorbeilauf der breiteren Markierung 18 an den Sensoren 14 und 16 beide Sensoren 14 und 16 gleichzeitig ein Signal abgreifen, wodurch am Ausgang des NAND-Gatters 28 ein Signal auftritt, was, nach erneuter Negierung, als Referenzsignal 26 am Ausgang abgreifbar ist und in Fig. 5c ent­sprechend dargestellt ist.The signal S1 shown in FIG. 5a is fed to one input of the NAND gate 28, the signal S2 shown in FIG. 5b is identical to the signal S1 in FIG. 5a with regard to its signal sequence, but out of phase by the angle β. The tuning of the angles α, β and γ is such that only when the wider marking 18 passes the sensors 14 and 16 both sensors 14 and 16 simultaneously pick up a signal, as a result of which a signal occurs at the output of the NAND gate 28, which after renewed negation, can be tapped at the output as reference signal 26 and is correspondingly shown in FIG. 5c.

Fig. 6 zeigt eine weitere Ausführungsmöglichkeit der Auswerteschal­tung, die verwendet wird, um den in Fig. 5c dargestellten Referenz­doppelimpuls in einen eindeutigen Referenzimpuls umzusetzen.FIG. 6 shows a further embodiment of the evaluation circuit which is used to convert the reference double pulse shown in FIG. 5c into a unique reference pulse.

Das Signal S1 des Gebers 14 wird an den Eingang 20 der Schaltung gelegt, das Signal S2 des Gebers 18 an den Eingang 22. Wie bei der Schaltung nach Fig. 4 liegt das Signal am Eingang 20 gleichzeitig am Ausgang 24 als Drehzahlsignal an.The signal S1 of the encoder 14 is applied to the input 20 of the circuit, the signal S2 of the encoder 18 to the input 22. As in the circuit according to FIG. 4, the signal at the input 20 is simultaneously present at the output 24 as a speed signal.

Gleichzeitig wird das Signal vom Eingang 20 auf den Trigger-Eingang eines D-Flip-Flops 30 gesetzt, das jedesmal, wenn die rückwärtige Kante einer Markierung 12 bzw. 18 an dem Sensor 14 vorbeiläuft, ge­triggert wird und damit der Q-Ausgang des D-Flip-Flops nur dann in den Zustand "high" schaltet, wenn zu der Zeit der positiven Trigger-­Flanke der Dateneingang vorher den Zustand "low" hatte. Somit ent­steht am Ausgang des Flip-Flops eine Impulsfolge, die nur einmal pro Umdrehung des Blendenradgebers 10 in den Zustand "high" übergeht, und zwar genau am Ende des Schlitzes C, wenn dessen rückwärtige Flanke den Sensor 14 passiert.At the same time, the signal from input 20 is set to the trigger input of a D flip-flop 30, which occurs every time the rear Edge of a marker 12 or 18 runs past the sensor 14, is triggered and thus the Q output of the D flip-flop only switches to the "high" state if, at the time of the positive trigger edge, the data input previously Had "low" status. A pulse sequence thus arises at the output of the flip-flop, which changes to the "high" state only once per revolution of the diaphragm wheel encoder 10, specifically at the end of the slot C when its rear flank passes the sensor 14.

Das am Ausgang 24 abgegriffene Drehzahlsignal hat, da es die einfache Durchschaltung des Signales S1 vom Geber 14 ist, unterschiedliche, von der Breite der Markierungen 12 bzw. 18 abhängige Breite und so­mit ein ungleiches Tastverhältnis.The speed signal tapped at the output 24 has a different width depending on the width of the markings 12 and 18, and thus an uneven duty cycle, since it is the simple connection of the signal S1 from the encoder 14.

Fig. 8 zeigt eine andere Auswerteschaltung bei der das Drehzahlsignal gleiches Tastverhältnis, wenn der Winkel β zwischen den beiden Senso­ren 14 bzw. 16 gleich der Winkelbreite γ der Markierungen A, B, D gewählt wird, besitzt.Fig. 8 shows another evaluation circuit in which the speed signal has the same duty cycle if the angle β between the two sensors 14 and 16 is chosen equal to the angular width γ of the markings A, B, D.

Wiederum ist ein Eingang 20 und eine Eingang 22 vorgesehen, dem die Signale S1 und S2 der Sensoren 14 und 16 zugeführt werden, das Re­ferenzsignal wird am Ausgang der Schaltung 26 abgegriffen, das Dreh­zahlsignal am Ausgang 24.Again, an input 20 and an input 22 are provided, to which the signals S1 and S2 of the sensors 14 and 16 are fed, the reference signal is tapped at the output of the circuit 26, the speed signal at the output 24.

Es ist in der Schaltung ein D-Flip-Flop 36 vorgesehen, an dessen Re­set-Eingang das Signal S1 vom Eingang 20 gelegt wird. Der D-Eingang des Flip-Flops 36 erhält das negierte Signal S1, und dem Clock-Ein­gang des Flip-Flops 36 wird das Ausgangssignal eines NAND-Gatters 34 zugeführt, an dessen einen Eingang das am Gatter 32 abgegriffene negierte Signal S1 anliegt und an dessen anderen Eingang das Signal S2 anliegt. Der Ausgang dieses NAND-Gatters 34 liefert gleichzeitig am Ausgang 24 der Auswerteschaltung das gewünschte Drehzahlsignal n.A D flip-flop 36 is provided in the circuit, at the reset input of which signal S1 from input 20 is applied. The D input of the flip-flop 36 receives the negated signal S1, and the clock input of the flip-flop 36 is supplied with the output signal of a NAND gate 34, at whose one input the negated signal S1 tapped at the gate 32 is present and on whose other input the signal S2 is present. The output of this NAND gate 34 simultaneously provides the desired speed signal n at the output 24 of the evaluation circuit.

Die Funktion der Schaltung ist folgende: In Fig. 9a ist das Signal S1 vom Sensor 14, in Fig. 9b ist das Signal S2 vom Sensor 16 darge­ stellt. Fig. 9c zeigt das am Dateneingang des Flip-Flops 36 anstehen­de Signal, das das negierte Signal von S1, also

Figure imgb0001
ist. Da das Signal aus Fig. 9b und das Signal aus Fig. 9c dem NAND-Gatter 34 jeweils an den Eingängen zugeführt wird, ist das Signal in Fig. 9d das am Ausgang des NAND-Gatters 34 anstehende Signal, das als Drehzahlsig­nal verwendet werden kann, wobei das Taktverhältnis des Signales nach Fig. 9d konstant ist.The function of the circuit is as follows: In FIG. 9a the signal S1 from sensor 14 is shown, in FIG. 9b the signal S2 from sensor 16 is shown poses. 9c shows the signal present at the data input of the flip-flop 36, which is the negated signal from S1, that is
Figure imgb0001
is. Since the signal from FIG. 9b and the signal from FIG. 9c are respectively fed to the NAND gate 34 at the inputs, the signal in FIG. 9d is the signal present at the output of the NAND gate 34, which can be used as a speed signal , the clock ratio of the signal according to FIG. 9d being constant.

Zu den dargestellten Zeitpunkten t1, t2, t5 und t6 ist das inver­tierte Signal S1 "low", so daß das Flip-Flop 36 durch dieses Signal bei der Ansteuerung des Clock-Einganges nicht gesetzt wird.At the represented times t1, t2, t5 and t6, the inverted signal S1 is "low", so that the flip-flop 36 is not set by this signal when the clock input is activated.

Zum Zeitpunkt t3 ist durch die Schlitzverbreiterung α das Signal

Figure imgb0002
"high", so daß Flip-Flop gesetzt wird und damit das Referenzsig­nal entsteht. Zum Zeitpunkt t4 setzt die positive Flanke von S1, die dem Reset-Eingang zugeführt wird, das Flip-Flop zurück.At time t3 the slot widening α results in the signal
Figure imgb0002
"high", so that the flip-flop is set and the reference signal is thus generated. At time t4, the positive edge of S1, which is fed to the reset input, resets the flip-flop.

Claims (10)

1. Geberanordnung zur Drehwinkelerkennung der Kurbelwelle einer Brenn­kraftmaschine, mit
einem mit halber Drehzahl der Kurbelwelle mitlaufenden Signal­geber,
dem Signalgeber zugeordneten, in ihrer Anzahl auf die Zylinder­anzahl abgestimmten Markierungen, durch die während eines bestimm­ten Kurbelwellenwinkelbereichs ein Signal erzeugbar ist,
einem ersten Sensor, der die Markierungen abfragt,
einer Auswertschaltung, die während des Vorbeilaufs der Markie­rungen an dem Sensor ein Signal erzeugt,
dadurch gekennzeichnet, daß eine (18) der Markierungen einen relativ größeren Kurbelwellenwinkelbereich (α + γ) abdeckt als die restlichen Markierungen (12), und daß ein zweiter Sensor (16) vorgesehen ist, der in einem definierten Winkelabstand (β) hinsichtlich des Drehwinkels des Signalgebers (10) zu dem ersten Sensor (14) angeordnet ist, wobei das Signal des zweiten Sensors (16) ebenfalls der Auswertschaltung zugeführt wird.1. Encoder arrangement for detecting the angle of rotation of the crankshaft of an internal combustion engine, with
a signal transmitter running at half the crankshaft speed,
the number of markings assigned to the signal transmitter and matched to the number of cylinders, by means of which a signal can be generated during a specific crankshaft angle range,
a first sensor that queries the markings,
an evaluation circuit that generates a signal while the markings pass the sensor,
characterized in that one (18) of the markings covers a relatively larger crankshaft angle range (α + γ) than the remaining markings (12), and that a second sensor (16) is provided which is at a defined angular distance (β) with respect to the angle of rotation of the signal generator (10) to the first sensor (14), the signal of the second sensor (16) also being fed to the evaluation circuit. 2. Geberanordnung nach Anspruch 1, dadurch gekenn­zeichnet, daß einem Referenzzylinder eine Referenzmar­kierung (18) zugeordnet ist, die über einen größeren Winkelbereich (α) ein Signal in den Sensoren (14, 16) erzeugt als die anderen Zylindermarkierungen (12), und daß der Winkelabstand (β) zwi­schen den beiden Sensoren (14, 16) kleiner ist als der Winkelab­stand zwischen zwei Markierungen (12) abzüglich des Winkels (γ) einer Zylindermarkierung (12), und daß der Winkelbereich (α) der Referenzmarkierung größer ist als der Winkelabstand (β) der Sensoren (14, 16).2. Encoder arrangement according to claim 1, characterized in that a reference cylinder is assigned a reference mark (18) which generates a signal in the sensors (14, 16) over a larger angular range (α, 16) than the other cylinder markings (12), and that the angular distance (β) between the two sensors (14, 16) is smaller than the angular distance between two markings (12) minus the angle (γ) a cylinder mark (12), and that the angular range (α) of the reference mark is greater than the angular distance (β) of the sensors (14, 16). 3. Geberanordnung nach Anspruch 1 oder 2, dadurch ge­kennzeichnet, daß die Auswertschaltung einen er­sten Ausgang (26) aufweist, auf dem bei einer durch die Referenz­markierung (18) vorbestimmten Winkelstellung innerhalb eines 720° Arbeitstaktes der Kurbelwelle ein Referenzsignal ausgegeben wird und einen zweiten Ausgang (24), der Signale im Abstand der Zylin­derabfolge liefert.3. Encoder arrangement according to claim 1 or 2, characterized in that the evaluation circuit has a first output (26) on which at a predetermined by the reference mark (18) predetermined angular position within a 720 ° cycle of the crankshaft a reference signal is output and a second output (24), which delivers signals at intervals of the cylinder sequence. 4. Geberanordnung nach einem der vorhergehenden Ansprüche, da­durch gekennzeichnet, daß die Auswertschal­tung ein Referenzsignal angibt, wenn jeder der beiden Sensoren (14, 16) ein Signal erzeugt.4. Encoder arrangement according to one of the preceding claims, characterized in that the evaluation circuit indicates a reference signal when each of the two sensors (14, 16) generates a signal. 5. Geberanordnung nach Anspruch 4, gekennzeichnet durch ein Und-Gatter (28), dessen Eingängen die Signale der Sensoren zugeführt werden und an dessen Ausgang das Referenz­signal abgegriffen wird.5. Encoder arrangement according to claim 4, characterized by an AND gate (28), the inputs of which the signals from the sensors are supplied and at whose output the reference signal is tapped. 6. Geberanordnung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die Auswertschaltung ein Re­ferenzsignal abgibt, wenn das Signal des ersten Sensors (14) an­liegt und das Signal des zweiten Sensors (16) einen vorherbestimm­ten logischen Wert besitzt.6. Encoder arrangement according to one of claims 1 to 3, characterized in that the evaluation circuit emits a reference signal when the signal of the first sensor (14) is present and the signal of the second sensor (16) has a predetermined logical value. 7. Geberanordnung nach Anspruch 6, dadurch gekenn­zeichnet, daß die Signaldauer des Referenzsignales ei­ner Periode der Signalfolge vom ersten Sensor (14) entspricht.7. Encoder arrangement according to claim 6, characterized in that the signal duration of the reference signal corresponds to a period of the signal sequence from the first sensor (14). 8. Geberanordnung nach Anspruch 6 oder 7, dadurch ge­kennzeichnet, daß die Auswertschaltung ein Flip-­ Flop (30) aufweist, auf dessen Dateneingang das Signal des zwei­ten Sensors (16) und auf dessen Triggereingang das Signal des ersten Sensors (14) gelegt wird und an dessen Ausgang das Refe­renzsignal abgegriffen wird.8. Encoder arrangement according to claim 6 or 7, characterized in that the evaluation circuit is a flip Flop (30), on the data input of which the signal of the second sensor (16) and on the trigger input of which the signal of the first sensor (14) is placed and on the output of which the reference signal is tapped. 9. Geberanordnung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die Auswerteschaltung ein Referenzsignal abgibt, wenn das Signal des ersten Sensors (14) einen vorbestimmten logischen Wert aufweist, wobei die rückwär­tige Flanke des Signals vom zweiten Sensor (16) die Auswertschal­tung zur Abgabe eines Referenzsignals triggert.9. Encoder arrangement according to one of claims 1 to 3, characterized in that the evaluation circuit emits a reference signal when the signal of the first sensor (14) has a predetermined logical value, the rear edge of the signal from the second sensor (16) the evaluation circuit triggers to emit a reference signal. 10. Geberanordnung nach Anspruch 9, gekennzeichnet durch ein NAND-Gatter (34), dessen Eingängen das negierte Signal des ersten Sensors und das Signal des zweiten Sensors zu­geführt wird und dessen Ausgang mit dem Flop-Eingang eines D-Flip-­Flops (36) verbunden ist, dem das invertierte Signal des ersten Sensors zugeführt wird und dem das Referenzsignal abgenommen wird.10. Encoder arrangement according to claim 9, characterized by a NAND gate (34), the inputs of which are fed the negated signal of the first sensor and the signal of the second sensor and whose output is connected to the flop input of a D flip-flop (36) is connected, to which the inverted signal of the first sensor is supplied and to which the reference signal is taken.
EP86116612A 1986-01-25 1986-11-28 Angle sensor arrangement Expired - Lifetime EP0230560B1 (en)

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DE19863602292 DE3602292A1 (en) 1986-01-25 1986-01-25 TRANSMITTER ARRANGEMENT
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2637652A1 (en) * 1988-10-11 1990-04-13 Bendix Electronics Sa Device for marking an operating cycle of an internal combustion engine
GB2234345A (en) * 1989-06-06 1991-01-30 Asahi Optical Co Ltd Position sensing device
EP0879956A1 (en) * 1988-05-16 1998-11-25 Motorola, Inc. Electronic position sensor assembly and control system

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3634587A1 (en) * 1986-10-10 1988-04-14 Bosch Gmbh Robert IGNITION SYSTEM FOR COMBUSTION ENGINES
JPS63253220A (en) * 1987-04-10 1988-10-20 Hitachi Ltd Measuring instrument for angle of rotation
US4972332A (en) * 1987-07-28 1990-11-20 Caterpillar Inc. Apparatus for determining the speed, angular position and direction of rotation of a rotatable shaft
JPH0174376U (en) * 1987-11-09 1989-05-19
JPH0715279B2 (en) * 1988-10-14 1995-02-22 三菱電機株式会社 Ignition timing control device
BR8807887A (en) * 1988-12-09 1990-11-27 Caterpillar Inc DEVICE FOR DETERMINING SPEED, ANGLE POSITION AND ROTATION DIRECTION OF A ROTATING AXIS
FR2650632B1 (en) * 1989-08-03 1994-04-29 Renault Vehicules Ind DETECTION METHOD AND DEVICE FOR ELECTRONIC INJECTION DRIVING OF A MULTICYLINDER ENGINE
WO1993009393A1 (en) * 1991-11-06 1993-05-13 Orbital Engine Company (Australia) Pty. Limited Method and apparatus for determining position of a body in cyclic movement
US5341097A (en) * 1992-09-29 1994-08-23 Honeywell Inc. Asymmetrical magnetic position detector
US5497083A (en) * 1992-12-24 1996-03-05 Kayaba Kogyo Kabushiki Kaisha Rod axial position detector including a first scale having equidistant magnetic parts and a second scale having unequally distant parts and differing field strengths
DE19520683A1 (en) * 1995-06-07 1996-12-12 Teves Gmbh Alfred Arrangement for detecting a movement
AT2385U1 (en) * 1997-09-09 1998-09-25 Amo Automatisierung Messtechni ANGLE MEASURING SYSTEM
DE19959425A1 (en) * 1999-12-09 2001-06-21 Siemens Ag Movement measuring apparatus with increased resolution especially for measuring rotation rate of a rotor
US6841962B2 (en) * 2001-08-31 2005-01-11 Package Machinery Co. Inc. Reciprocating linear actuator
DE10160846A1 (en) * 2001-12-12 2003-07-10 Valeo Auto Electric Gmbh Actuating device, in particular for actuating limited slip differentials of vehicles
DE102010001431A1 (en) 2010-02-01 2011-08-04 Osram Gesellschaft mit beschränkter Haftung, 81543 Optical system
DE102015209866A1 (en) * 2015-05-29 2016-12-01 Zf Friedrichshafen Ag Method for condition monitoring of at least one planetary gear of a planetary gear
DE102015209865B4 (en) * 2015-05-29 2022-08-25 Zf Friedrichshafen Ag Process for acquiring sensor signals
DE102015209867A1 (en) * 2015-05-29 2016-12-01 Zf Friedrichshafen Ag Method for condition monitoring of at least one planetary gear of a planetary gear
DE102015209868A1 (en) * 2015-05-29 2016-12-01 Zf Friedrichshafen Ag Planetary gear with at least one sensor
FR3083860B1 (en) * 2018-07-13 2021-01-15 Continental Automotive France TREATMENT PROCESS FOR CAMSHAFT SENSOR

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4181884A (en) * 1977-07-20 1980-01-01 Nippondenso Co., Ltd. Rotational position detection device using a reference mark and two sensors spaced integer times apart
EP0010033A1 (en) * 1978-09-29 1980-04-16 Psa Etudes Et Recherches Angular position sensor for an internal combustion engine fitted with an electronic ignition system
FR2444274A1 (en) * 1978-12-14 1980-07-11 Bosch Gmbh Robert Engine shaft revolution rate and rotation angle measurement - using hall generator segmented control wheel with distinguishing projecting tooth
FR2445511A1 (en) * 1978-12-28 1980-07-25 Thomson Csf Piston position sensor for IC engine - uses leakage inductance damping in free-running oscillator within rotor and with output fed to level comparator
EP0101332A1 (en) * 1982-07-28 1984-02-22 Automobiles Peugeot Synchronisation device for an electronic ignition system
US4442822A (en) * 1981-10-22 1984-04-17 Kokusan Denki Co., Ltd. Ignition position controlling apparatus for multicylinder internal combustion engine

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1490987A (en) * 1974-03-08 1977-11-09 Westinghouse Brake & Signal Vehicle movement control arrangements
US3944923A (en) * 1974-05-22 1976-03-16 Frank Kenneth Luteran Device for sensing the direction of motion
US4089316A (en) * 1976-04-05 1978-05-16 Motorola, Inc. Adjustable rotary position sensor for electronic spark timing control
FR2428151A1 (en) * 1978-06-08 1980-01-04 Peugeot DEVICE FOR TRIGGERING, PARTICULARLY THE IGNITION OF AN INTERNAL COMBUSTION ENGINE
US4280165A (en) * 1979-04-24 1981-07-21 Pospelov Boris S Device for measuring angular position of a gear in a digital ignition system of an internal combustion engine
JPS5924970Y2 (en) * 1979-07-10 1984-07-23 株式会社デンソー Rotational position detection device
JPS5619759U (en) * 1979-07-25 1981-02-21
US4313414A (en) * 1980-01-14 1982-02-02 Thomson-Csf Shaft position sensor for an internal combustion engine equipped with an electronic ignition system
DE3017972C2 (en) * 1980-05-10 1995-01-26 Bosch Gmbh Robert Control device for multiple ignition and / or fuel injection output stages for internal combustion engines
JPS5826339U (en) * 1981-08-17 1983-02-19 株式会社コトブキ Deck support structure for folding table
JPS5850257U (en) * 1981-09-25 1983-04-05 日本ケ−ブル・システム株式会社 Control cable drive device
DE3220896A1 (en) * 1982-06-03 1983-12-08 Robert Bosch Gmbh, 7000 Stuttgart SENSOR
JPS59226232A (en) * 1983-06-06 1984-12-19 Nippon Denso Co Ltd Apparatus for detecting rotational position of internal- combustion engine

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4181884A (en) * 1977-07-20 1980-01-01 Nippondenso Co., Ltd. Rotational position detection device using a reference mark and two sensors spaced integer times apart
EP0010033A1 (en) * 1978-09-29 1980-04-16 Psa Etudes Et Recherches Angular position sensor for an internal combustion engine fitted with an electronic ignition system
FR2444274A1 (en) * 1978-12-14 1980-07-11 Bosch Gmbh Robert Engine shaft revolution rate and rotation angle measurement - using hall generator segmented control wheel with distinguishing projecting tooth
FR2445511A1 (en) * 1978-12-28 1980-07-25 Thomson Csf Piston position sensor for IC engine - uses leakage inductance damping in free-running oscillator within rotor and with output fed to level comparator
US4442822A (en) * 1981-10-22 1984-04-17 Kokusan Denki Co., Ltd. Ignition position controlling apparatus for multicylinder internal combustion engine
EP0101332A1 (en) * 1982-07-28 1984-02-22 Automobiles Peugeot Synchronisation device for an electronic ignition system

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0879956A1 (en) * 1988-05-16 1998-11-25 Motorola, Inc. Electronic position sensor assembly and control system
FR2637652A1 (en) * 1988-10-11 1990-04-13 Bendix Electronics Sa Device for marking an operating cycle of an internal combustion engine
GB2234345A (en) * 1989-06-06 1991-01-30 Asahi Optical Co Ltd Position sensing device
US5073790A (en) * 1989-06-06 1991-12-17 Asahi Kogaku Kogyo Kabushiki Kaisha Position sensing device

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JPS62190408A (en) 1987-08-20
DE3676990D1 (en) 1991-02-21
DE3602292C2 (en) 1990-08-30
EP0230560B1 (en) 1991-01-16
EP0230560A3 (en) 1987-11-11
ES2019580B3 (en) 1991-07-01
DE3602292A1 (en) 1987-08-06
US4783627A (en) 1988-11-08

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