EP1242734A1 - Setting device for a vehicle having a mechanically adjustable part, and method for operating the setting device - Google Patents

Setting device for a vehicle having a mechanically adjustable part, and method for operating the setting device

Info

Publication number
EP1242734A1
EP1242734A1 EP01976561A EP01976561A EP1242734A1 EP 1242734 A1 EP1242734 A1 EP 1242734A1 EP 01976561 A EP01976561 A EP 01976561A EP 01976561 A EP01976561 A EP 01976561A EP 1242734 A1 EP1242734 A1 EP 1242734A1
Authority
EP
European Patent Office
Prior art keywords
sensor
value
evaluation device
stored
component
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP01976561A
Other languages
German (de)
French (fr)
Other versions
EP1242734B1 (en
Inventor
Konrad Slanec
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Methode Electronics Malta Ltd
Original Assignee
Methode Electronics Malta Ltd
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 Methode Electronics Malta Ltd filed Critical Methode Electronics Malta Ltd
Publication of EP1242734A1 publication Critical patent/EP1242734A1/en
Application granted granted Critical
Publication of EP1242734B1 publication Critical patent/EP1242734B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D11/00—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated
    • F02D11/06—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance
    • F02D11/10—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance of the electric type
    • F02D11/106—Detection of demand or actuation
    • 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
    • F02D41/2406—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means using essentially read only memories
    • F02D41/2425—Particular ways of programming the data
    • F02D41/2429—Methods of calibrating or learning
    • F02D41/2451—Methods of calibrating or learning characterised by what is learned or calibrated
    • F02D41/2474—Characteristics of sensors
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/20—Control lever and linkage systems
    • Y10T74/20528—Foot operated
    • Y10T74/20534—Accelerator

Definitions

  • the invention relates to an actuating device for a vehicle with a mechanically adjustable component and a method for operating the actuating device.
  • Tolerance compensation of a position transmitter signal has become known, in which the rest position of the component is monitored during the operation of the vehicle. The measured values of an upper and a lower stop are saved. If one of these end values is exceeded during operation, the new measured value is saved as the new end value. This has the disadvantage that an actual drift of the rest position towards the central area cannot be detected at all.
  • the invention has for its object to eliminate the adjustment effort and to increase functional reliability.
  • Actuator need to be less demanding to ensure their function.
  • a shift in the rest value can be reliably detected in both directions.
  • the principle of repeating an initial value in a longer dwell position makes it possible to verify the rest position with a high degree of certainty. It is also conceivable to set the starting position when the vehicle electronics are switched on. But if at that moment For example, if the clutch pedal was pressed, this leads to a
  • Stop position within an output range of the sensor signals represents the actual starting position.
  • the actuating device can be prepared and installed as a largely autonomous system without. that further coordination measures are required.
  • the reset device according to claim 3 ensures the rest position in a simple manner.
  • a coil of the inductive sensor can e.g. on a pedal housing and one caught by the coil
  • Metal part to be attached to a foot pedal Metal part to be attached to a foot pedal.
  • An associated control electronics is also attached to the pedal housing and combined with the coil in a module that can also contain the evaluation electronics.
  • the inductive sensor detects the distance to the metal part and thus also the
  • the inventions according to claims 5 and 6 specify the exact procedure for determining the initial value.
  • the degree of verification can be further increased if the output signal is recognized and stored after the exact rest level is repeated. Such a multiple repetition results e.g. when operating the clutch pedal in a starting phase.
  • FIG. 1 schematically shows a partial side view of a pedal device of an automobile with a sensor in a starting position
  • FIG. 2 shows the parts according to FIG. 1 in a different functional position
  • FIG. 3 shows a course diagram of the sensor values when the pedal position of the pedal device according to FIG. 1 changes.
  • a mechanically adjustable component is in the form of a foot lever 1 serving as an operating element
  • Pedal axis 2 pivotally mounted in a housing 5 which can be used in the footwell of an automobile.
  • a stationary coil part 3 which induces an electromagnetic alternating field directed towards the foot lever 1.
  • the coil part 3 is part of an assembly 6 fastened to the housing, which is fastened to the housing 5 and which contains control and evaluation electronics for the coil part.
  • Foot lever 1 is attached to a metal part 4, which together with the coil part forms an inductive sensor and its
  • Coil part 3 which leads to a corresponding change in the measurable power loss of the coil part 3.
  • Sheet metal bent metal part 4 has a convex cam-like curvature, the course of which is designed so that the
  • the metal part has a bending contour that is easy to produce and can be inserted with little effort into one
  • the foot lever is pivoted into a functional position in which the distance to the coil part 3 is significantly increased.
  • the inductive resistance of the coil part has changed accordingly.
  • a directly coupled conversion device not shown, the
  • Evaluation device 9 stored threshold value sw limits an output range sr of the sensor values within which the output value can vary.
  • a previous output value sp is stored in the evaluation device. In the left-hand section of the curve, the foot lever is in the stop position according to FIG. 1. The sensor value s ' is significantly above the stored previous output value sp. Since the actuating device provided with a timing element has no further sensor, for example in the form of a limit switch for the detection of the stop position, it assumes that the sensor value is constant over a defined minimum duration tm
  • Threshold value sw a new output value, which it saves as a provisional intermediate value st.
  • the foot pedal 1 is pivoted from its starting position into the functional position shown in FIG. 2, the sensor values s clearly exceeding the threshold value sw.
  • the sensor values s in the right part of the curve exactly reach the level of the intermediate value st, which remains constant over the defined minimum duration tm.
  • the evaluation device 9 compares this value with the intermediate value st. After sufficient agreement between the two values and a significant deviation from the stored initial value sp, the evaluation device stores the intermediate value st as a new one
  • Such an adjusting device and such an adjustment method can not only be correspondingly Operating elements of a vehicle, but also to other actuating and drive devices with periodic processes, for example in a carburetor or an injection system.
  • Verification of the rest position by exact repetition makes additional evaluations e.g. of
  • Device with the associated sensor can work completely independently of other measured variables, which allows extensive unbundling of various measuring and control devices of the vehicle.
  • Evaluation device s sensor value sw threshold value st intermediate value sp output value spn new output value sr output range t time tm minimum duration

Abstract

A sensor (3, 4) is assigned to a mechanically adjustable part (e.g. 1) and generates sensor signals corresponding to the positions of the part. An initial range (sr) of the sensor values (s) is assigned to an inoperative position of the part and covers the varying initial positions of the part (e.g. 1). An evaluation device (9) stores a longer constant signal in the initial range as an intermediate value (st). A longer constant sensor signal is compared with the intermediate value (st) after the initial range (sr) is exceeded and after the subsequent return into this range. If it is established that both values are approximately of the same magnitude, the evaluation device stores this value as an initial value (sp, spn). As a result, the inoperative position of the part is reliably verified without the use of additional auxiliary means.

Description

Beschreibungdescription
STELLVORRICHTUNG FÜR EIN FAHRZEUG MIT EINEM MECHANISCH VERSTELLBAREN BAUTEIL UND VERFAHREN ZUM BETREIBEN DER STELLVORRICHTUNGACTUATING DEVICE FOR A VEHICLE WITH A MECHANICALLY ADJUSTABLE COMPONENT AND METHOD FOR OPERATING THE ACTUATING DEVICE
Die Erfindung bezieht sich auf eine Stellvorrichtung für ein Fahrzeug mit einem mechanisch verstellbarem Bauteil sowie ein Verfahren zum Betreiben der Stellvorrichtung.The invention relates to an actuating device for a vehicle with a mechanically adjustable component and a method for operating the actuating device.
Bei Automobilen ist es üblich, ein z.B. als Fußhebel ausgebildetes Stellglied mit einem- Sensor zu koppeln, der die Winkelstellung des Hebels erfaßt. Die Justage eines Positionssignals des Fußhebels erfolgt nach dem Einbau in das Automobil, indem in einer Anschlagstellung des Fußhebels über einen externen Signaleingang ein Hilfssignal gesetzt wird oder die Position des Sensors selbst mechanisch verstellt wird. Der in diesem Moment am Sensor anliegende Signalpegel wird dann als Ausgangswert abgespeichert und im späteren Betrieb subtrahiert oder kompensiert Die Prozesssicherheit dieser Verfahren ist nach auto otiven Aspekten kaum gewährleistet. Beim späteren Betrieb des Fahrzeugs ist es möglich, daß sich die Geometrie des Hebelwerks z.B. durch sich vergrößerndes Lagerspiel, durch Verformungen oder im Reparaturfall verändert. Auch der z.B. als Drehpotentiometer oder Hallsensor ausgebildete Sensor kann seine Charakteristik durch Abnutzung oder Verschmutzung z.B. mit Eisenpartikeln verändern. Die Eigenschaften der elektronischen Komponenten werden sich im Betrieb auch durch Alterung und Umwelteinflüße ändern, was zwangsweise zum Signaldrift führt.In automobiles it is common to use e.g. to couple as a foot lever actuator with a sensor that detects the angular position of the lever. The position signal of the foot pedal is adjusted after installation in the automobile by setting an auxiliary signal in an end position of the foot pedal via an external signal input or by mechanically adjusting the position of the sensor itself. The signal level present at the sensor at this moment is then saved as an output value and subtracted or compensated for later operation. The process reliability of these methods is hardly guaranteed according to automotive aspects. During the later operation of the vehicle it is possible that the geometry of the lever mechanism e.g. changed due to increasing bearing play, deformation or in the event of a repair. The e.g. a sensor designed as a rotary potentiometer or Hall sensor can change its characteristics due to wear or contamination e.g. change with iron particles. The properties of the electronic components will also change during operation due to aging and environmental influences, which inevitably leads to signal drift.
Übliche adaptive Lernsysteme können hier nicht angewandt werden, da die Betätigungsprofile der Signale sowohl vom Fahrer als auch von Verkehrssituationen abhängen, wie z.B. eine unkontrolliert lange Verweildauer in einer bestimmten Position. Ferner kann mit den bekannten Algorithmen keine kurzzeitig hervorgerufene Nullpunktänderungen erfaßt werden, wie solche, die z.B. nach einer Reparatur entstehen.Usual adaptive learning systems cannot be used here, since the actuation profiles of the signals depend on the driver as well as on traffic situations, such as an uncontrolled length of time in a certain time Position. Furthermore, the known algorithms cannot be used to detect briefly caused zero point changes, such as those which arise, for example, after a repair.
Durch die DE 3612904 A ist ein Verfahren zurDE 3612904 A describes a method for
Toleranzkompensation eines Positionsgebersignals bekannt geworden, bei dem die Ruhestellung des Bauteils während des Betriebs des Fahrzeugs überwacht wird. Dabei werden die Messwerte eines oberen eines unteren Anschlags gespeichert. Koramt es während des Betriebs zu einer Überschreitung eines dieser Endwerte, wird der neue Messwert als neuer Endwert abgespeichert. Dies hat den Nachteil, daß eine tatsächliche Drift der Ruhestellung zum Mittelbereich hin überhaupt nicht erfasst werden kann.Tolerance compensation of a position transmitter signal has become known, in which the rest position of the component is monitored during the operation of the vehicle. The measured values of an upper and a lower stop are saved. If one of these end values is exceeded during operation, the new measured value is saved as the new end value. This has the disadvantage that an actual drift of the rest position towards the central area cannot be detected at all.
Der Erfindung liegt die Aufgabe zugrunde, den Justageaufwand zu eliminieren und die Funktionssicherheit zu erhöhen.The invention has for its object to eliminate the adjustment effort and to increase functional reliability.
Diese Aufgabe wird durch Erfindung gemäß Anspruch 1 gelöst. Durch die ständige Überwachung der Ruhestellung während des Betriebs können nun Verschiebungen des Signalpegels in der Anschlagstellung erfaßt und korrigiert werden. Eine Nachjustierung durch Fachpersonal ist nicht mehr erforderlich. Ein besonderer Vorteil besteht darin, daß an die Stabilität, die Qualität und die Montage derThis object is achieved by the invention according to claim 1. Due to the constant monitoring of the rest position during operation, shifts in the signal level in the stop position can now be detected and corrected. Readjustment by specialist personnel is no longer necessary. A particular advantage is that the stability, quality and assembly of the
Stelleinrichtung weniger hohe Anforderungen gestellt werden müssen, um ihre Funktion zu sichern.Actuator need to be less demanding to ensure their function.
Eine Verschiebung des Ruhewertes kann sicher in beiden Richtungen erkannt werden. Durch das Prinzip der Wiederholung eines Ausgangswertes in einer längeren Verweilstellung ist es möglich, die Ruhestellung mit hoher Sicherheit zu verifizieren. Es ist an sich auch denkbar, die Ausgangsstellung im Moment des Einschaltens der Fahrzeugelektronik festzulegen. Wenn aber in diesem Moment z.B. das Kupplungspedal betätigt wurde, führt dies zu einerA shift in the rest value can be reliably detected in both directions. The principle of repeating an initial value in a longer dwell position makes it possible to verify the rest position with a high degree of certainty. It is also conceivable to set the starting position when the vehicle electronics are switched on. But if at that moment For example, if the clutch pedal was pressed, this leads to a
Fehlinterpretation mit einer entsprechenden Fehlfunktion desMisinterpretation with a corresponding malfunction of the
Bediensystems. Außerdem würden sich Signalverschiebungen während des Betriebs infolge von Temperaturschwankungen nicht erfassen lassen. Da es nahezu unmöglich ist, eine freieOperating system. In addition, signal shifts during operation due to temperature fluctuations would not be recorded. Since it is almost impossible to find a free one
Schwebestellung exakt mehrfach hintereinander zu treffen und zu halten, kann mit hoher Sicherheit davon ausgegangen werden, daß eine zumindest einmalige Wiederholung einerHitting and holding the suspended position exactly several times in succession can be assumed with a high degree of certainty that an at least one repetition of a
Haltestellung innerhalb eines Ausgangsbereichs der Sensorsignale die tatsächliche Ausgangsstellung darstellt.Stop position within an output range of the sensor signals represents the actual starting position.
Durch dieses Schema wird zwar die Ausgangsstellung dynamisch e faß r jedoch durch Schwingungen wie sie z. B. im Automobil vorkommen nicht beeinflußt.This scheme, although the starting position dynamically e r However barrel by vibrations as such. B. occur in the automobile is not affected.
Vorteilhafte Weiterbildungen der Erfindung ergeben sich aus den in den Ansprüchen 2 bis 4 gekennzeichneten Merkmalen.Advantageous further developments of the invention result from the features characterized in claims 2 to 4.
Durch die Weiterbildung nach Anspruch 2 kann die Stellvorrichtung als weitgehend autonomes System vorbereitet und eingebaut werden, ohne . daß weitere Abstimmmaßnahmen erforderlich sind.Through the development according to claim 2, the actuating device can be prepared and installed as a largely autonomous system without. that further coordination measures are required.
Die Rückstelleinrichtung nach Anspruch 3 wird in einfacher Weise die Ruhestellung sichergestellt.The reset device according to claim 3 ensures the rest position in a simple manner.
Durch die Weiterbildung nach Anspruch 4 wird eine Bedienvorrichtung geschaffen, die bei großerThrough the development according to claim 4, an operating device is created which is large
Funktionssicherheit einfach hergestellt und in ein Automobil eingebaut werden kann. Eine Spule des induktiven Sensors kann z.B. an einem Pedalgehäuse und ein von der Spule erfaßtesFunctional safety can be easily manufactured and installed in an automobile. A coil of the inductive sensor can e.g. on a pedal housing and one caught by the coil
Metallteil an einem Fußhebel befestigt sein. Eine zugehörige Steuerelektronik ist ebenfalls am Pedalgehäuse befestigt und mit der Spule in einer Baugruppe zusammengefaßt, die auch die Auswerteelektronik enthalten kann. Der induktive Sensor erfaßt den Abstand zum Metallteil und damit auch dieMetal part to be attached to a foot pedal. An associated control electronics is also attached to the pedal housing and combined with the coil in a module that can also contain the evaluation electronics. The inductive sensor detects the distance to the metal part and thus also the
Winkelstellung des Fußhebels.Angle position of the foot lever.
Die Erfindungen nach den Ansprüchen 5 und 6 geben die genaue Prozedur der Ermittlung des Ausgangswertes an. Dabei kann der Verifizierungsgrad noch weiter gesteigert werden, wenn das Ausgangssignal nach einer weiteren Wiederholung des exakten Ruhepegels anerkannt und abgespeichert wird. Eine solche mehrfache Wiederholung ergibt sich z.B. beim Betätigen des Kupplungspedals in einer Anfahrphase.The inventions according to claims 5 and 6 specify the exact procedure for determining the initial value. The degree of verification can be further increased if the output signal is recognized and stored after the exact rest level is repeated. Such a multiple repetition results e.g. when operating the clutch pedal in a starting phase.
Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt und wird im folgenden näher erläutert. Es zeigen:An embodiment of the invention is shown in the drawing and is explained in more detail below. Show it:
Figur 1 schematisiert eine partielle Seitenansicht einer Pedaleinrichtung eines AutomobiJs mit einem wegaufnehmenden Sensor in einer Ausgangsstellung, Figur 2 die Teile nach Figur 1 in einer anderen FunktionsStellung, Figur 3 ein Verlaufsdiagra m der Sensorwerte bei sich ändernder Pedalstellung der Pedaleinrichtung nach Figur 1.1 schematically shows a partial side view of a pedal device of an automobile with a sensor in a starting position, FIG. 2 shows the parts according to FIG. 1 in a different functional position, FIG. 3 shows a course diagram of the sensor values when the pedal position of the pedal device according to FIG. 1 changes.
Nach Figur 1 ist ein mechanisch verstellbares Bauteil in Form eines als Bedienorgan dienenden Fußhebels 1 um eineAccording to FIG. 1, a mechanically adjustable component is in the form of a foot lever 1 serving as an operating element
Pedalachse 2 schwenkbar in einem Gehäuse 5 gelagert, das in den Fußraum eines Automobils einsetzbar ist. Oberhalb des Fußhebels 1 befindet sich ein stationär angebrachtes Spulenteil 3, das ein zum Fußhebel 1 hin gerichtetes elektromagnetisches Wechselfeld induziert. Das Spulenteil 3 ist Teil einer am Gehäuse befestigten Baugruppe 6, die am Gehäuse 5 befestigt ist und die eine Steuer- und Auswerteelektronik für das Spulenteil enthält. Am z.B. aus glasfaserverstärktem Kunststoff bestehendenPedal axis 2 pivotally mounted in a housing 5 which can be used in the footwell of an automobile. Above the foot lever 1 there is a stationary coil part 3 which induces an electromagnetic alternating field directed towards the foot lever 1. The coil part 3 is part of an assembly 6 fastened to the housing, which is fastened to the housing 5 and which contains control and evaluation electronics for the coil part. For example, made of glass fiber reinforced plastic
Fußhebel 1 ist ein Metallteil 4 angesetzt, das zusammen mit dem Spulenteil einen induktiven Sensor bildet und dessenFoot lever 1 is attached to a metal part 4, which together with the coil part forms an inductive sensor and its
Abstand zum Spulenteil 3 sich in Abhängigkeit von der Schwenkstellung des Fußhebels 1 ändert. Dies bewirkt eine entsprechende Änderung des induktiven Widerstand desDistance to the coil part 3 changes depending on the pivot position of the foot lever 1. This causes a corresponding change in the inductive resistance of the
Spulenteils 3, was zu einer entsprechenden Änderung der meßbaren Verlustleistung des Spulenteils 3 führt. Das ausCoil part 3, which leads to a corresponding change in the measurable power loss of the coil part 3. The end
Blech gebogene Metallteil 4 weist eine konvexe nockenartige Krümmung auf, deren Verlauf so gestaltet ist, daß sich dieSheet metal bent metal part 4 has a convex cam-like curvature, the course of which is designed so that the
Ausgangssignale des Sensors annähernd proportional zuOutput signals from the sensor are approximately proportional to
Winkelstellung des Fußhebels 1 verändern.Change the angular position of foot pedal 1.
Das Metallteil weist eine einfach zu erzeugende Biegekontur auf und kann mit geringem Aufwand durch Einlegen in eineThe metal part has a bending contour that is easy to produce and can be inserted with little effort into one
Gießform für den Fußhebel mit diesem verbunden werden. Dieses Teil des Sensors verursacht daher beim weiteren Einbau in den Pedalraum keinerlei zusätzliche Kosten. In der gezeigten Ausgangsstellung liegt der Fußhebel gegen die Kraft einer Rückstellfeder 7 an einem Anschlag 8 des Gehäuses 5 an und nimmt dabei ein Ruhestellung ein, deren Sensorwert einen entsprechenden Ausgangswert darstellt. Ein Ende des Metallteils ist dem Spulenteil eng benachbart und beeinflußt dessen elektromagnetisches Wechselfeld entsprechend stark.Mold for the foot pedal to be connected to this. This part of the sensor therefore does not cause any additional costs for further installation in the pedal area. In the starting position shown, the foot lever rests against the force of a return spring 7 against a stop 8 of the housing 5 and thereby assumes a rest position, the sensor value of which represents a corresponding starting value. One end of the metal part is closely adjacent to the coil part and influences its alternating electromagnetic field accordingly.
Nach Figur 2 ist der Fußhebel in eine Funktionsstellung geschwenkt, in der der Abstand zum Spulenteil 3 erheblich vergrößert ist. Der induktive Widerstand des Spulenteils hat sich entsprechend geändert. In einer nicht dargestellten, unmittelbar angekoppelten Umsetzeinrichtung können dieAccording to Figure 2, the foot lever is pivoted into a functional position in which the distance to the coil part 3 is significantly increased. The inductive resistance of the coil part has changed accordingly. In a directly coupled conversion device, not shown, the
Sensorwerte in Ausgangssignale umgewandelt werden und in einer elektronischen Auswerteeinrichtung der Baugruppe 6 verarbeitet werden. Figur 3 gibt den Verlauf der Sensorwerte während einesSensor values are converted into output signals and processed in an electronic evaluation device of module 6. Figure 3 shows the course of the sensor values during a
Bedienzyklus wieder, wobei t die eine Zeitachse und s die Achse der Sensorwerte darstellt. Ein in derOperating cycle again, where t represents the time axis and s the axis of the sensor values. An Indian
Auswerteeinrichtung 9 (Fig. 1) gespeicherter Schwellwert sw begrenzt einen Ausgangsbereich sr der Sensorwerte, innerhalb dessen der Ausgangswert variieren kann. In der Auswerteeinrichtung ist ein bisheriger Ausgangswert sp abgespeichert. Im linken Kurvenabschnitt befindet sich der Fußhebel in der Anschlagstellung nach Figur 1. Der Sensorwert s' liegt hier signifikant oberhalb des gespeicherten- bisherigen Ausgangswertes sp . Da die mit einem Zeitglied versehene Stelleinrichtung keinen weiteren Sensor z.B. in Form eines Endtasters für die Erkennung der Anschlagstellung aufweist, vermutet sie in dem über eine definierte Mindestdauer tm konstanten Sensorwert unterhalb desEvaluation device 9 (FIG. 1) stored threshold value sw limits an output range sr of the sensor values within which the output value can vary. A previous output value sp is stored in the evaluation device. In the left-hand section of the curve, the foot lever is in the stop position according to FIG. 1. The sensor value s ' is significantly above the stored previous output value sp. Since the actuating device provided with a timing element has no further sensor, for example in the form of a limit switch for the detection of the stop position, it assumes that the sensor value is constant over a defined minimum duration tm
Schwellwerts sw einen neuen Ausgangswert, den sie als provisorischen Zwischenwert st abspeichert.Threshold value sw a new output value, which it saves as a provisional intermediate value st.
In der 'nachfolgenden Phase wird der Fußhebel 1 aus seiner Ausgangslage in die in Figur 2 dargestellte Funktionslage geschwenkt, wobei die Sensorwerte s den Schwellwert sw deutlich überschreiten. Nachdem der Fußhebel in die in Figur 1 gezeigte Ausgangsstellung zurückgekehrt ist, erreichen die Sensorwerte s im rechten Kurventeil exakt die Höhe des Zwischenwertes st, der über die festgelegte Mindestdauer tm konstant bleibt. Die Auswerteeinrichtung 9 vergleicht diesen Wert mit dem Zwischenwert st. Nach hinreichender Übereinstimmung der beiden Werte und signifikanter Abweichung vom gespeicherten Ausgangswert sp speichert die Auswerteeinrichtung den Zwischenwert st als neuenIn the 'subsequent phase, the foot pedal 1 is pivoted from its starting position into the functional position shown in FIG. 2, the sensor values s clearly exceeding the threshold value sw. After the foot pedal has returned to the starting position shown in FIG. 1, the sensor values s in the right part of the curve exactly reach the level of the intermediate value st, which remains constant over the defined minimum duration tm. The evaluation device 9 compares this value with the intermediate value st. After sufficient agreement between the two values and a significant deviation from the stored initial value sp, the evaluation device stores the intermediate value st as a new one
Ausgangswert spn für die Ruhestellung des Fußhebels 1 (Fig. 1) ab.Starting value spn for the rest position of the foot lever 1 (FIG. 1).
Eine derartige Stelleinrichtung und ein derartiges Justierverfahren läßt sich entsprechend nicht nur auf Bedienorgane eines Fahrzeugs, sondern auch auf andere Stell- und Antriebseinrichtungen mit periodischen Abläufen z.B. bei einem Vergasers oder einer Einspritzanlage anwenden. DieSuch an adjusting device and such an adjustment method can not only be correspondingly Operating elements of a vehicle, but also to other actuating and drive devices with periodic processes, for example in a carburetor or an injection system. The
Verifizierung der Ruhestellung durch exakte Wiederholung macht dabei zusätzliche Auswertungen z.B. vonVerification of the rest position by exact repetition makes additional evaluations e.g. of
Tasterstellungen oder der Stromaufnahme von Stellantrieben überflüssig. Ein besonderer Vorteil besteht darin, daß diePush button positions or the current consumption of actuators are unnecessary. A particular advantage is that the
Einrichtung mit dem zugehörigen Sensor völlig unabhängig von anderen Messgrößen arbeiten kann, was eine weitgehende Entflechtung von verschiedenen Meß- und Steuereinrichtungen des Fahrzeugs ermöglicht. Device with the associated sensor can work completely independently of other measured variables, which allows extensive unbundling of various measuring and control devices of the vehicle.
Bezugszeichenreference numeral
1 Fußhebel1 foot pedal
2 Pedalachse 3 Spulenteil2 pedal axis 3 coil part
4 Metallteil4 metal part
5 Gehäuse5 housing
6 Baugruppe6 assembly
7 Rückstellfeder 8 Anschlag7 return spring 8 stop
9 Auswerteeinrichtung s Sensorwert sw Schwellwert st Zwischenwert sp Ausgangswert spn neuer Ausgangswert sr Ausgangsbereich t Zeit tm Mindestdauer 9 Evaluation device s sensor value sw threshold value st intermediate value sp output value spn new output value sr output range t time tm minimum duration

Claims

Patentanprüche Patentanprüche
1. Stellvorrichtung für ein Fahrzeug mit einem mechanisch verstellbarem Bauteil (z.B. 1) und mit einem die Stellungen des Bauteils messenden Sensor (3, 4), der mit einer elektronischen Auswerteeinrichtung (9) verbunden ist, wobei eine Ruhestellung des Bauteils als Ausgangsstellung definierbar ist, wobei die der Ruhestellung entsprechenden Werte (s) von Sensorsignalen in der Auswerteeinrichtung (9) als1. Setting device for a vehicle with a mechanically adjustable component (for example 1) and with a sensor (3, 4) measuring the positions of the component, which is connected to an electronic evaluation device (9), a rest position of the component being definable as the starting position , The values (s) of sensor signals corresponding to the rest position in the evaluation device (9) as
Ausgangswert sp speicherbar sind, wobei die Ruhestellung des Bauteils während des Betriebs desOutput value sp can be stored, the rest position of the component during the operation of the
Fahrzeugs überwachbar ist und wobei bei einer signifikanten Abweichung der Sensorsignale in der Ruhestellung vom Ausgangswert (sp) der Wert der aktuellenVehicle can be monitored and if there is a significant deviation of the sensor signals in the rest position from the initial value (sp), the value of the current one
Sensorsignale als neuer Ausgangswert (spn) speicherbar ist, dadurch gekennzeichnet, daß die Auswerteeinrichtung mit Mitteln zur Erkennung einesSensor signals can be stored as a new output value (spn), characterized in that the evaluation device has means for detecting a
Stellzyklus versehen ist, daß eine längere stationäre Verweilstellung des BauteilsAdjustment cycle is provided that a longer stationary dwelling position of the component
(z.B. 1) in einem Ausgangsbereich (sr) der Ruhestellung in der Auswerteeinrichtung (9) speicherbar ist, und daß das Verlassen des Ausgangsbereichs (sr) und die annähernd exakte Rückkehr in die gespeicherte stationäre Verweilstellung und das längere Verweilen darin als die tatsächliche Ruhestellung speicherbar ist.(For example, 1) can be stored in an output area (sr) of the rest position in the evaluation device (9), and that leaving the exit area (sr) and the approximately exact return to the stored stationary dwelling position and the longer lingering therein can be stored as the actual rest position is.
2. Stellvorrichtung nach Anspruch 1 , dadurch gekennzeic net, daß das Bauteil (1) als Bedienorgan ausgebildet ist und daß der Sensor (3, 4)) und zumindest Teile der Auswerteeinrichtung (9) in einer gemeinsamen Baugruppe (6) zusammengefaßt und mit einem Gehäuse (5) für das Bedienorgan verbunden sind. 2. Adjusting device according to claim 1, characterized in that the component (1) is designed as an operating element and that the sensor (3, 4)) and at least parts of the evaluation device (9) are combined in a common assembly (6) and with one Housing (5) for the control element are connected.
3. Stellvorrichtung nach Anspruch 2, dadurch gekennzeichnet, daß das Bedienorgan (z.B. 1) mit einer Rückstelleinrichtung (z.B. 7) versehen ist, die nach dem Freigeben des Bedienorgans dieses in die Ausgangsstellung zurückbewegt.3. Adjusting device according to claim 2, characterized in that the control element (e.g. 1) is provided with a reset device (e.g. 7) which moves the control element back into the starting position after the control element has been released.
4. Stellvorrichtung nach Anspruch 3, dadurch gekennzeic net, daß das Bedienorgan als federbelasteter Schwenkhebel, insbesondere als Fußhebel (1) ausgebildet ist und daß der als induktiver Abstandssensor ausgebildete Sensor (3, 4) die Winkelstellungen des Schwenkhebels (z.B. 1) detektiert .4. Adjusting device according to claim 3, characterized in that the control element is designed as a spring-loaded pivot lever, in particular as a foot lever (1) and that the sensor (3, 4) designed as an inductive distance sensor detects the angular positions of the pivot lever (e.g. 1).
5. Verfahren zum Betreiben einer Stellvorrichtung nach einem der vorhergehenden Ansprüche, wobei die Stellung eines mechanischen Bauteils (z.B. 1) durch einen Sensor (3, 4) detektiert wird, der mit einer elektronischen Auswerteeinrichtung (9) gekoppelt ist, dadurch gekennzeichnet, daß für die Ermittlung der Ausgangsstellung des Bauteils den Sensorsignalen ein Schwellwert (sw) zugeordnet und in der Auswerteeinrichtung (9) abgespeichert wird, daß die unterhalb des Schwellwertes liegenden Sensorsignale dem Ausgangsbereich (sr) zugeordnet werden, der dem zulässigen Bereich der Ruhestellung entspricht, daß der Bedienzyklus durch die Überschreitung Schwellwertes (sw) und anschließende Rückkehr der Sensorwerte (s) in den Ausgangsbereich (sr) definiert wird, daß die Auswerteeinrichtung den Signalpegel des Sensors kontinuierlich oder in engen Zeitabständen erfaßt und mit dem Schwellwert (sw) vergleicht, daß der Wert eines über eine Mindestdauer konstanten Sensorsignals unterhalb des Schwellwertes in der Auswerteeinrichtung als Zwischenwert (st) erkannt und gespeichert wird, daß nach einem Überschreiten und anschließendem Unterschreiten des Schwellwertes (sw) der Signalpegel mit dem Zwischenwert (st) und dem Ausgangswert (sp) verglichen wird und daß ein anschließendes über die Mindestdauer konstantes Sensorsignal (s) in der Höhe des vom Ausgangswert (sp) abweichenden Zwischenwertes als neuer Ausgangswert (spn) abgespeichert wird.5. A method for operating an actuating device according to one of the preceding claims, wherein the position of a mechanical component (for example 1) is detected by a sensor (3, 4) which is coupled to an electronic evaluation device (9), characterized in that for the determination of the initial position of the component assigns a threshold value (sw) to the sensor signals and is stored in the evaluation device (9) so that the sensor signals below the threshold value are assigned to the output range (sr) which corresponds to the permissible range of the rest position, that the operating cycle by exceeding the threshold value (sw) and then returning the sensor values (s) to the output range (sr), it is defined that the evaluation device detects the signal level of the sensor continuously or at close intervals and compares it with the threshold value (sw) that the value of a over a minimum period of constant sensor signal below the Threshold in the Evaluation device is recognized and stored as an intermediate value (st), that after exceeding and then falling below the threshold value (sw) the signal level is compared with the intermediate value (st) and the output value (sp) and that a subsequent sensor signal that is constant over the minimum duration (see ) in the amount of the intermediate value deviating from the initial value (sp) is stored as a new initial value (spn).
6. Verfahren nach Anspruch 5, dadurch gekennzeichnet, daß die Ausgangsstellung des Bedienorgans auch während das Betriebs des Automobils überwacht und bei hinreichender Abweichung neu festgelegt wird. 6. The method according to claim 5, characterized in that the starting position of the operating member is monitored even during the operation of the automobile and is redefined with sufficient deviation.
EP01976561A 2000-10-23 2001-10-22 Setting device for a vehicle having a mechanically adjustable part, and method for operating the setting device Expired - Lifetime EP1242734B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10052442A DE10052442C2 (en) 2000-10-23 2000-10-23 Actuating device for a vehicle with a mechanically adjustable component and method for operating the actuating device
DE10052442 2000-10-23
PCT/IB2001/001972 WO2002035073A1 (en) 2000-10-23 2001-10-22 Setting device for a vehicle having a mechanically adjustable part, and method for operating the setting device

Publications (2)

Publication Number Publication Date
EP1242734A1 true EP1242734A1 (en) 2002-09-25
EP1242734B1 EP1242734B1 (en) 2004-10-06

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Application Number Title Priority Date Filing Date
EP01976561A Expired - Lifetime EP1242734B1 (en) 2000-10-23 2001-10-22 Setting device for a vehicle having a mechanically adjustable part, and method for operating the setting device

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US (1) US6988050B2 (en)
EP (1) EP1242734B1 (en)
JP (1) JP2004512227A (en)
AT (1) ATE278870T1 (en)
DE (2) DE10052442C2 (en)
ES (1) ES2230370T3 (en)
WO (1) WO2002035073A1 (en)

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Publication number Priority date Publication date Assignee Title
DE102004032075B4 (en) * 2004-07-02 2008-07-24 Methode Electronics Malta Ltd. Sensor device for a physical size in a device
DE102005028844B4 (en) * 2005-06-22 2007-07-05 Luk Lamellen Und Kupplungsbau Beteiligungs Kg Method and device for controlling a non-self-locking coupling
DE102005058192A1 (en) * 2005-12-06 2007-06-28 Airbus Deutschland Gmbh Device for fault detection of adjustable flaps
EP2426462B1 (en) * 2010-09-06 2018-02-28 Robert Bosch GmbH Method and device for correcting the actual limit value of a sensor

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DE3612904A1 (en) * 1986-04-17 1987-10-22 Bosch Gmbh Robert METHOD FOR TOLERANCE COMPENSATION OF A POSITION SENSOR SIGNAL
US5229957A (en) * 1986-04-17 1993-07-20 Robert Bosch Gmbh Method for tolerance compensation of a position transducer
JPH03294630A (en) 1990-04-09 1991-12-25 Nissan Motor Co Ltd Control device for throttle valve
US5241936A (en) * 1991-09-09 1993-09-07 Williams Controls, Inc. Foot pedal arrangement for electronic throttle control of truck engines
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Also Published As

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WO2002035073A1 (en) 2002-05-02
ATE278870T1 (en) 2004-10-15
DE10052442A1 (en) 2002-05-08
US6988050B2 (en) 2006-01-17
JP2004512227A (en) 2004-04-22
ES2230370T3 (en) 2005-05-01
DE10052442C2 (en) 2003-06-05
EP1242734B1 (en) 2004-10-06
DE50103975D1 (en) 2004-11-11
US20030075891A1 (en) 2003-04-24

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