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WO1987006689A1 - Device for detecting the position of a moving part in a motor vehicle - Google Patents

Device for detecting the position of a moving part in a motor vehicle Download PDF

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Publication number
WO1987006689A1
WO1987006689A1 PCT/DE1987/000136 DE8700136W WO8706689A1 WO 1987006689 A1 WO1987006689 A1 WO 1987006689A1 DE 8700136 W DE8700136 W DE 8700136W WO 8706689 A1 WO8706689 A1 WO 8706689A1
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Prior art keywords
track
detection element
element according
position detection
sections
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.)
Ceased
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PCT/DE1987/000136
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German (de)
French (fr)
Inventor
Herbert Arnold
Michael Horbelt
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Robert Bosch GmbH
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Robert Bosch GmbH
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/24—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
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
    • G01D5/12—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
    • G01D5/14—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage
    • G01D5/16—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying resistance
    • G01D5/165—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying resistance by relative movement of a point of contact or actuation and a resistive track

Definitions

  • the invention is based on. a position detection element for a movable part in a motor vehicle according to the preamble of the main claim.
  • a position detection element for a movable part in a motor vehicle according to the preamble of the main claim.
  • several potentiometer tracks of different lengths are applied to a substrate.
  • the total measuring range is divided into individual sub-areas which are isolated from one another and which are each tapped with their own grinder. This results in areas with different resolutions.
  • the organ has the disadvantage, however, that several parallel paths are necessary and therefore builds large.
  • the position detection device with the characterizing features of the main claim has the advantage that the entire area can be divided into sections with different resolution rates using a linear potentiometer. Only a single potentiometer path is necessary, so that the position detection element is relatively simple and small. A corresponding resolution in the individual load ranges can be achieved relatively easily.
  • FIG. 1 shows an overview of an electronically ge controlled injection system, in which the throttle valve position and the speed are processed as the most important operating parameter
  • FIG. 2 shows a simplified position detection element
  • FIG. 3 shows a diagram of the course of the output voltage U p over the length 1 of the position detection element
  • FIG. 4 shows a modification of the above exemplary embodiment.
  • FIG. 1 the basic structure of an electrically controlled and preferably intermittent fuel injection system is shown, starting from signals of the speed and the throttle valve position angle.
  • An internal combustion engine 10 receives intake air via an intake pipe 11 with a throttle valve 12 and has an exhaust pipe 13.
  • a speed sensor 14 detects the instantaneous speed of the crankshaft and, together with the angle ⁇ of the throttle valve 12, determines an injection signal t P for an injection valve 15 assigned to the intake pipe 11.
  • other operating parameters such as, for. B. the temperature ⁇ * and lambda ⁇ . fed. This is with other inputs , ⁇ . of the control unit 16 indicated.
  • FIG. 2 shows a position detection element for the throttle valve 12.
  • a resistance track 21 with an associated grinding track 22 and a grinder 23.
  • the length of the resistance track 21 is designated by 1; it forms a potentiometer, the output signal of which can be removed via the slider track 22 and a line 24.
  • the resistance track 21 is connected via a line 25 to an output voltage V cc .
  • the line 25 of the resistance track 21 can be connected as a common connection for both connections, as shown in FIG. 2, or also individually for each connection on the control device. Now Iatat that an additional contact point 28 is located on the Wideratandabahn 21. This is at a fixed reference potential, e.g. B. mass.
  • the drop in the voltage U P over the length 1 of the resistance track 21 is shown in FIG.
  • the straight line is designated by 29, which would result in a resistance path with linear resistance behavior without an additional contact point 28.
  • the voltage U P drops between the respective ends of the resistance track 21 and the additional contact point 28.
  • the straight lines labeled 30 and 31 result. If the contacting point 28 is not in the middle of the resistance track 21, the two straight lines 30, 31 have a different slope in terms of amount. The steeper the straight line 30, 31, the better the resolution of the voltage value U P. As already stated above, particularly small opening angles of the throttle valve 12 are to be sensed sensitively.
  • each voltage value U P can be assigned to both straight lines 30 or 31.
  • the respective voltage value has to be linked with additional parameters. These additional parameters or a combination of such parameters can then in an evaluation circuit, for. B. in the control unit 16 to be analyzed.
  • the voltage value U P is then software-assigned to the respective area of the resistance track 21 that is currently being tapped.
  • the voltage value U P can be assigned to the initial region of the resistance track 21.
  • the transition to the second area can be recognized and evaluated.
  • the grinder track 22 it is also possible to divide the grinder track 22 into two grinder tracks 33, 34 assigned to the respective areas, each with its own exit.
  • the signal U P With a common resistance track 21 and a common slider 23, but with two separate slider tracks 33, 34, the signal U P is then tapped and uniquely assigned. Depending on the length of the two slider tracks 33, 34, the signal U P can then be resolved differently and tapped apart.
  • the field of application of the position detection element according to the invention is not limited to the detection of the throttle valve position, it can be used wherever a position measurement over the entire value range is to be measured with different resolution and only a single, essentially linearly acting single potentiometer is to be used.

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  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Combined Controls Of Internal Combustion Engines (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)

Abstract

In a device for detecting the position of a moving part in a motor vehicle, in particular the throttle valve, the single resistor circuit (21) is split into two regions preferably of different lengths by means of an additional contact point (28). Both regions are measured in succession by means of a detector (23) in order to obtain a position signal having a different or even identical resolution, depending on the region. The various signals detected are then allocated electrically to said regions and they are further processed accordingly. A different resolution can be obtained relatively easily in each loading region.

Description

Positionserfassungsorgan für ein bewegbares Teil in einem KraftfahrzeugPosition detection element for a movable part in a motor vehicle

Stand der TechnikState of the art

Die Erfindung geht aus von. einem Positionaerfassungsorgan für ein bewegbares Teil in einem Kraftfahrzeug nach der Gattung des Ηauptanspruchs. Bei einem derartigen bekannten Organ sind mehrere verschieden lange Potentiometerbahnen auf einem Substrat aufgebracht. Dadurch können mit Schleifern über den Gesamtmeßbereich hinweg Abschnitte verschiedener Bahnen mit unterachiedlicher Auflöaerate, d. h. unterschiedlicher Steigung, abgegriffen werden. Dadurch ist der Gesamtmeßbereich in einzelne voneinander isolierte Teilbereiche aufgeteilt, die mit jeweils einem eigenen Schleifer abgegriffen werden. Es ergeben sich dadurch jeweils Bereiche mit unterschiedlicher Auflösung. Das Organ hat aber den Nachteil, daß mehrere parallele Bahnen notwendig sind und ea dadurch groß baut.The invention is based on. a position detection element for a movable part in a motor vehicle according to the preamble of the main claim. In such a known organ, several potentiometer tracks of different lengths are applied to a substrate. As a result, sections of different webs with different dissolution rates, ie. H. different slope. As a result, the total measuring range is divided into individual sub-areas which are isolated from one another and which are each tapped with their own grinder. This results in areas with different resolutions. The organ has the disadvantage, however, that several parallel paths are necessary and therefore builds large.

Ferner ist ea bekannt, bei einer Kraftatoffeinapritzanlage mit einer Einspritzsignalerzeugung die Drosselklappenstellung mittels eines Potentiometers zu erfassen. Im Hinblick auf eine optimale Kraftstoffzumessung ist es erforderlich, im Bereich relativ kleiner Drosselklappenöffnungswinkel, d. h. im unteren Lastbereich, die Drosselklappenposition sehr exakt zu erfassen. Dies erfordert eine im Vergleich zu höheren Lastbereichen erhöhte Auflösung im unteren Lastbereich. Es hat sich nun gezeigt, daß in einigen Fällen die Erfassung einer Potentiometerspannung mit üblichen 8-Bit-A/D-Wandlern in bezug auf die relative Auflösung nicht ausreicht. Insbesondere bei kleinen Öffnungswinkeln bewirkt die Quantisierung einen hohen Sprung je Inkrement.Furthermore, it is known to detect the throttle valve position by means of a potentiometer in the case of a motor fuel injection system with an injection signal generation. With a view to optimum fuel metering, it is necessary to detect the throttle valve position very precisely in the area of relatively small throttle valve opening angles, ie in the lower load area. This requires a higher resolution in the lower load range compared to higher load ranges. It has now been shown that in some cases the detection of a potentiometer voltage with conventional 8-bit A / D converters is not sufficient with respect to the relative resolution. In particular with small opening angles, the quantization causes a large jump per increment.

Bekannt ist auch, die unterschiedliche Auflösung über Potentiometer mit nichtlinearen Kennlinien (z. B. einer logarithmischen Kennlinie) zu erreichen. Im Hinblick auf die Massenfertigung ist jedoch die Herateilung derartiger Potentiometer nicht unproblematisch bezüglich ihrer exakten Reproduzierbarkeit.It is also known to achieve the different resolution using potentiometers with non-linear characteristics (e.g. a logarithmic characteristic). With regard to mass production, however, the preparation of such potentiometers is not without problems with regard to their exact reproducibility.

Vorteile der ErfindungAdvantages of the invention

Das erfindungsgemäße Fositionserfassungsorgan mit den kennzeichnenden Merkmalen des Hauptanspruchs hat demgegenüber den Vorteil, daß mit Hilfe eines linearen Potentiometers der Gesamtbereich in Abschnitte mit verschieden hoher Auflöserate unterteilt werden kann. Es ist dabei nur eine einzige Potentiometerbahn notwendig, so daß das Positionserfassungsorgan relativ einfach und klein baut. Eine entsprechende Auflösung in den einzelnen Lastbereichen ist relativ problemlos erreichbar.The position detection device according to the invention with the characterizing features of the main claim has the advantage that the entire area can be divided into sections with different resolution rates using a linear potentiometer. Only a single potentiometer path is necessary, so that the position detection element is relatively simple and small. A corresponding resolution in the individual load ranges can be achieved relatively easily.

Durch die in den Unteransprüchen aufgeführten Maßnahmen sind vorteilhafte Weiterbildungen des im Hauptanspruch angegebenen Posi- tionserfassungsorgan möglich.The measures listed in the subclaims permit advantageous developments of the position detection element specified in the main claim.

Zeichnungdrawing

Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt und in der nachfolgenden Beschreibung näher erläutert. Es zeigen Figur 1 eine Übersichtsdarstellung einer elektronisch ge steuerten Einspritzanlage, bei der als wichtigste Betriebskenngröße die Drosselklappenposition und die Drehzahl verarbeitet werden, Figur 2 ein vereinfacht dargestelltes Positionserfassungaorgan, Figur 3 ein Diagramm des Verlaufs der Ausgangsspannung Up über der Länge 1 des Positionserfassungsorgans und Figur 4 eine Abwandlung obigen Ausführungsbeispiels.An embodiment of the invention is shown in the drawing and explained in more detail in the following description. FIG. 1 shows an overview of an electronically ge controlled injection system, in which the throttle valve position and the speed are processed as the most important operating parameter, FIG. 2 shows a simplified position detection element, FIG. 3 shows a diagram of the course of the output voltage U p over the length 1 of the position detection element, and FIG. 4 shows a modification of the above exemplary embodiment.

Beschreibung des AusführungsbeispielsDescription of the embodiment

In Figur 1 ist die Grundatruktur einer elektrisch gesteuerten und vorzugsweise intermittierend arbeitenden Kraftstoffeinspritzanlage, ausgehend von Signalen der Drehzahl und des Drosselklappenstellungswinkels dargestellt. Eine Brennkraftmaschine 10 erhält Ansaugluft über ein Ansaugrohr 11 mit einer Drosselklappe 12 und besitzt eine Abgasleitung 13. Ein Drehzahlsensor 14 erfaßt die Augenblicksdrehzahl der Kurbelwelle und bestimmt zusammen mit dem Winkel α der Drosselklappe 12 ein Einspritzsignal tP für ein dem Ansaugrohr 11 zugeordnetes Einspritzventil 15. In das Steuergerät 16 für die elektronische Einspritzung werden in der Regel neben Drehzahl und Drosselklappenposition noch weitere Betriebskenngrößen, wie z. B. die Temperatur

Figure imgf000005_0001
θ* und Lambda λ. eingespeist. Dies ist mit weiteren Eingängen
Figure imgf000005_0002
, λ. des Steuergeräts 16 angedeutet.In Figure 1, the basic structure of an electrically controlled and preferably intermittent fuel injection system is shown, starting from signals of the speed and the throttle valve position angle. An internal combustion engine 10 receives intake air via an intake pipe 11 with a throttle valve 12 and has an exhaust pipe 13. A speed sensor 14 detects the instantaneous speed of the crankshaft and, together with the angle α of the throttle valve 12, determines an injection signal t P for an injection valve 15 assigned to the intake pipe 11. In addition to the speed and throttle valve position, other operating parameters, such as, for. B. the temperature
Figure imgf000005_0001
θ * and lambda λ. fed. This is with other inputs
Figure imgf000005_0002
, λ. of the control unit 16 indicated.

Je nach Lastbereich der Brennkraftmaschine besitzt die Drosselklappe 12 einen unterschiedlichen Öffnungswinkel. Dabei ist die Reaktion der Brennkraftmaschine im Bereich kleiner Öffnungswinkel der Drosselklappe feinfühliger als bei großen Öffnungswinkeln, so daß es erforderlich ist, die Auflösung des Öffnungswinkels im unteren Lastbereich höher zu wählen als im oberen. In Figur 2 ist ein Positionserfassungsorgan für die Drosaelklappe 12 dargeatellt. Auf einem Substrat 20 befindet aich eine Widerstands- bahn 21 mit einer zugeordneten Schleiferbahn 22 und einem Schleifer 23. Die Länge der Wideratandabahn 21 iat mit 1 bezeichnet; sie bildet ein Potentiometer, dessen Ausgangssignal über die Schleiferbahn 22 und eine Leitung 24 abnehmbar ist. Die Widerstandsbahn 21 ist über eine Leitung 25 an eine Ausgangsspannung Vcc angeschlossen.Depending on the load range of the internal combustion engine, the throttle valve 12 has a different opening angle. The reaction of the internal combustion engine is more sensitive in the area of the small opening angle of the throttle valve than in the case of large opening angles, so that it is necessary to choose a higher resolution for the opening angle in the lower load range than in the upper one. FIG. 2 shows a position detection element for the throttle valve 12. On a substrate 20 there is also a resistance track 21 with an associated grinding track 22 and a grinder 23. The length of the resistance track 21 is designated by 1; it forms a potentiometer, the output signal of which can be removed via the slider track 22 and a line 24. The resistance track 21 is connected via a line 25 to an output voltage V cc .

Die Leitung 25 der Widerstandsbahn 21 kann als für beide Anschlüsse gemeinsame Verbindung, wie in der Figur 2 dargestellt, oder auch einzeln für jeden Anschluß am Steuergerät angeschloaaen sein. Weaentlich iat nun, daß eich auf der Wideratandabahn 21 ein zuaätzlicher Kontaktierungspunkt 28 befindet. Dieser ist auf ein festes Bezugspotential, z. B. Masse, gelegt.The line 25 of the resistance track 21 can be connected as a common connection for both connections, as shown in FIG. 2, or also individually for each connection on the control device. Now Iatat that an additional contact point 28 is located on the Wideratandabahn 21. This is at a fixed reference potential, e.g. B. mass.

Aus Figur 3 ist der Abfall der Spannung UP über die Länge 1 der Widerstandsbahn 21 dargestellt. Mit 29 ist die Gerade bezeichnet, die sich bei einer Widerstandsbahn mit linearem Wideratandaverhalten ohne zusätzlichen Kontaktierungspunkt 28 ergeben würde. Im Ausführungsbeispiel nach Figur 2 fällt die Spannung UP zwischen den jeweiligen Enden der Widerstandsbahn 21 und dem zusätzlichen Kontaktierungspunkt 28 ab. Es ergeben sich die mit 30 und 31 bezeichneten Geraden. Befindet sich der Kontaktierungspunkt 28 nicht in der Mitte der Widerstandsbahn 21, so haben die beiden Geraden 30, 31 betragsmäßig gesehen eine unterschiedliche Steigung. Je steiler die Geraden 30, 31 sind, desto besser ist die Auflösung des Spannungswertes UP. Wie oben bereits ausgeführt, sollen besonders kleine Öffnungswinkel der Drosselklappe 12 feinfühlig erfaßt werden. Dazu muß der Kontaktierungspunkt 28 sich näher am Anfang der Widerstandsbahn 21 befinden, so daß die Strecke vom Anfang der Widerstandsbahn\bis zum Kontaktierungspunkt 28 kleiner ist als die Strecke vom Ende der Widerstandsbahn bis zum Kontaktierungspunkt 28. Wie aus Figur 3 ersichtlich, kann jeder Spannungswert UP beiden Geraden 30 oder 31 zugeordnet werden. Um eindeutige SpannungswerteUP zu erhalten, ist der jeweilige Spannungswert noch mit zusätzlichen Parametern zu verknüpfen. Diese zusätzlichen Parameter oder eine Kombination solcher Parameter können dann in einer Auswerteschaltung, z. B. im Steuergerät 16, analysiert werden. Der Spannungswert UP wird dann softwaremäßig dem jeweiligen Bereich der Widerstandsbahn 21 zugeordnet, der gerade abgegriffen wird. In Verbindung mit der Drosselklappe 12 kann z. B. bei geschlossenem Leerlaufschalter der Spannungswert UP dem Anfangsbereich der Widerstandsbahn 21 zugeordnet werden. Über den zeitlichen Verlauf der Spannung UP und einer Zuordnung von z. B. der Drehzahländerung kann der Übergang in den zweiten Bereich erkannt und ausgewertet werden.The drop in the voltage U P over the length 1 of the resistance track 21 is shown in FIG. The straight line is designated by 29, which would result in a resistance path with linear resistance behavior without an additional contact point 28. In the exemplary embodiment according to FIG. 2, the voltage U P drops between the respective ends of the resistance track 21 and the additional contact point 28. The straight lines labeled 30 and 31 result. If the contacting point 28 is not in the middle of the resistance track 21, the two straight lines 30, 31 have a different slope in terms of amount. The steeper the straight line 30, 31, the better the resolution of the voltage value U P. As already stated above, particularly small opening angles of the throttle valve 12 are to be sensed sensitively. For this purpose, the contact point 28 must be closer to the start of the resistance path 21, so that the distance from the start of the resistance path \ to the contact point 28 is smaller than the distance from the end of the resistance path to the contact point 28. As can be seen from FIG. 3, each voltage value U P can be assigned to both straight lines 30 or 31. In order to obtain clear voltage values U P , the respective voltage value has to be linked with additional parameters. These additional parameters or a combination of such parameters can then in an evaluation circuit, for. B. in the control unit 16 to be analyzed. The voltage value U P is then software-assigned to the respective area of the resistance track 21 that is currently being tapped. In connection with the throttle valve 12 z. B. with the idle switch closed, the voltage value U P can be assigned to the initial region of the resistance track 21. About the time course of the voltage U P and an assignment of z. B. the speed change, the transition to the second area can be recognized and evaluated.

Auch ist - wie in Figur 4 dargestellt - eine Aufteilung der Schleiferbahn 22 in zwei dem jeweiligen Bereichen zugeordnete Schleiferbahnen 33, 34 mit je einem eigenen Ausgang möglich. Mit einer gemeinsamen Widerstandsbahn 21 und einem gemeinsamen Schleifer 23, aber mit zwei getrennten Schleiferbahnen 33, 34, wird dann das Signal UP abgegriffen und eindeutig zugeordnet. Entsprechend der Länge der beiden Schleiferbahnen 33, 34 kann dann das Signal UP unterschiedlich aufgelöst und gespreizt abgegriffen werden.As shown in FIG. 4, it is also possible to divide the grinder track 22 into two grinder tracks 33, 34 assigned to the respective areas, each with its own exit. With a common resistance track 21 and a common slider 23, but with two separate slider tracks 33, 34, the signal U P is then tapped and uniquely assigned. Depending on the length of the two slider tracks 33, 34, the signal U P can then be resolved differently and tapped apart.

Das Anwendungsgebiet des erfindungsgemäßen Positionserfassungsorgans ist nicht auf das Erfassen der Drosselklappenposition beschränkt, es läßt sich überall dort einsetzen, wo eine Positionsmessung über den gesamten Wertebereich mit unterschiedlicher Auflösung gemessen werden soll und nur auf ein einziges im wesentlichen linear wirkendes Einzelpotentiometer zurückgegriffen werden soll. The field of application of the position detection element according to the invention is not limited to the detection of the throttle valve position, it can be used wherever a position measurement over the entire value range is to be measured with different resolution and only a single, essentially linearly acting single potentiometer is to be used.

Claims

Ansprüche Expectations 1. Positionserfassungsorgan für ein beweghares Teil in einem Kraftfahrzeug, mit einem Positionsaufnehmer (23) und wenigstens einer Potentiometerbahn (21) mit einer ihr zugeordneten Schleiferbahn (22), dadurch gekennzeichnet, daß die einzige Potentiometerbahn (21) in mindestens zwei Abschnitte unterteilt ist, wodurch eine unterschiedliche Auflösung des Positionssignals erzielhar ist.1. Position detection element for a movable part in a motor vehicle, with a position sensor (23) and at least one potentiometer track (21) with an associated wiper track (22), characterized in that the single potentiometer track (21) is divided into at least two sections, whereby a different resolution of the position signal is achieved. 2. Positionserfassungsorgan nach Anspruch 1, dadurch gekennzeichnet, daß die Potentiometerbahn (21) einen zusätzlichen an ein festes Bezugspotential (Masse, Ausgangsspannung) gelegten Kontaktierungspunkt (28) hat, so daß sich zwei Abschnitte ergeben, die nacheinander vom Positionsaufnehmer (22) durchlaufen werden.2. Position sensing element according to claim 1, characterized in that the potentiometer track (21) has an additional at a fixed reference potential (ground, output voltage) contact point (28), so that there are two sections which are successively traversed by the position sensor (22) . 3. Positionserfassungsorgan nach Anspruch 1 und/oder 2, dadurch gekennzeichnet, daß die äußeren Anschlüsse der Potentiometerbahn (21) einzeln an ein Steuergerät (16) gelegt sind.3. Position detection element according to claim 1 and / or 2, characterized in that the outer connections of the potentiometer track (21) are placed individually on a control device (16). 4. Positionserfassungsorgan nach Anspruch 1 und/oder 2, dadurch gekennzeichnet, daß die äußeren Anschlüsse der Potentiometerbahn (21) gemeinsam an einen entsprechenden Referenzzweig eines Steuergeräts (16) gelegt sind.4. Position sensing element according to claim 1 and / or 2, characterized in that the outer connections of the potentiometer track (21) are placed together on a corresponding reference branch of a control unit (16). 5. Positionserfassungsorgan nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die beiden Abschnitte der Potentiometerbahn (21) unterschiedliche Länge haben. 5. Position detection element according to one of claims 1 to 4, characterized in that the two sections of the potentiometer track (21) have different lengths. 6. Positionserfassungsorgan nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß den beiden Abschnitten der Potentiometerbahn (21) je eine eigene Schleiferbahn (33, 34) zugeordnet ist, über die die Signale der einzelnen Abschnitte mit Hilfe des gemeinsamen Positionsaufnehmers (22) abgegriffen werden.6. Position detection element according to one of claims 1 to 5, characterized in that the two sections of the potentiometer track (21) each have their own wiper track (33, 34) is assigned, via which the signals of the individual sections with the help of the common position sensor (22) be tapped. 7. Positionserfassungsorgan nach einem der Ansprüche 1 bis 6, gekennzeichnet durch seine Verwendung als Drosselklappenpositionssensor. 7. Position detection element according to one of claims 1 to 6, characterized by its use as a throttle position sensor.
PCT/DE1987/000136 1986-04-25 1987-03-27 Device for detecting the position of a moving part in a motor vehicle Ceased WO1987006689A1 (en)

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DE19863614047 DE3614047A1 (en) 1986-04-25 1986-04-25 POSITION DETECTOR FOR A MOVABLE PART IN A MOTOR VEHICLE
DEP3614047.3 1986-04-25

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0297433A3 (en) * 1987-07-03 1989-07-05 Hitachi, Ltd. Electronically-controlled fuel injection system for internal combustion engines
FR2644247A1 (en) * 1989-03-13 1990-09-14 Peugeot IMPROVED POTENTIOMETRIC SENSOR
EP0407736A1 (en) * 1989-07-12 1991-01-16 Robert Bosch Gmbh Method of controlling the fuel feed in a combustion engine
WO1991012423A1 (en) * 1990-02-10 1991-08-22 Robert Bosch Gmbh System for controlling and/or regulating an internal combustion engine
GB2273784A (en) * 1992-12-24 1994-06-29 Bosch Gmbh Robert A method and system for detecting the travel position of a body
WO1994019592A1 (en) * 1993-02-26 1994-09-01 Siemens Aktiengesellschaft Arrangement for connecting position sensors to processors
FR2742223A1 (en) * 1995-12-11 1997-06-13 Fichtel & Sachs Ag DEVICE FOR DETECTING THE POSITION OF A MACHINE PART, IN PARTICULAR A SPEED CHANGE LEVER

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2223050A2 (en) * 2007-12-15 2010-09-01 Hirschmann Automotive GmbH Reduction of the resolution requirements of sensors

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2311277A1 (en) * 1975-05-16 1976-12-10 Tech Automatisme Electrical displacement transducer - has potentiometer with programmable tappings and resistors to set programmed function
DE2710581A1 (en) * 1977-03-11 1978-09-14 Centra Buerkle Gmbh & Co Valve actuator stepping motor potentiometer circuit - has two additional wipers setting upper and lower limits of main tapping wiper
GB2021272A (en) * 1978-05-08 1979-11-28 Smiths Industries Ltd Remote position indicator
US4280465A (en) * 1980-07-16 1981-07-28 Brunswick Corporation Throttle control for an electronic fuel-injection control circuit
FR2570177A1 (en) * 1984-09-13 1986-03-14 Bosch Gmbh Robert POSITIONS DETECTION DEVICE FOR A MOBILE PART IN A MOTOR VEHICLE

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2311277A1 (en) * 1975-05-16 1976-12-10 Tech Automatisme Electrical displacement transducer - has potentiometer with programmable tappings and resistors to set programmed function
DE2710581A1 (en) * 1977-03-11 1978-09-14 Centra Buerkle Gmbh & Co Valve actuator stepping motor potentiometer circuit - has two additional wipers setting upper and lower limits of main tapping wiper
GB2021272A (en) * 1978-05-08 1979-11-28 Smiths Industries Ltd Remote position indicator
US4280465A (en) * 1980-07-16 1981-07-28 Brunswick Corporation Throttle control for an electronic fuel-injection control circuit
FR2570177A1 (en) * 1984-09-13 1986-03-14 Bosch Gmbh Robert POSITIONS DETECTION DEVICE FOR A MOBILE PART IN A MOTOR VEHICLE

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0297433A3 (en) * 1987-07-03 1989-07-05 Hitachi, Ltd. Electronically-controlled fuel injection system for internal combustion engines
FR2644247A1 (en) * 1989-03-13 1990-09-14 Peugeot IMPROVED POTENTIOMETRIC SENSOR
EP0389310A3 (en) * 1989-03-13 1990-12-19 Automobiles Peugeot Potentiometric sensor
EP0407736A1 (en) * 1989-07-12 1991-01-16 Robert Bosch Gmbh Method of controlling the fuel feed in a combustion engine
WO1991012423A1 (en) * 1990-02-10 1991-08-22 Robert Bosch Gmbh System for controlling and/or regulating an internal combustion engine
GB2273784A (en) * 1992-12-24 1994-06-29 Bosch Gmbh Robert A method and system for detecting the travel position of a body
WO1994019592A1 (en) * 1993-02-26 1994-09-01 Siemens Aktiengesellschaft Arrangement for connecting position sensors to processors
FR2742223A1 (en) * 1995-12-11 1997-06-13 Fichtel & Sachs Ag DEVICE FOR DETECTING THE POSITION OF A MACHINE PART, IN PARTICULAR A SPEED CHANGE LEVER

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DE3614047A1 (en) 1987-11-05
EP0265452A1 (en) 1988-05-04

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