DE102004006166A1 - Manual control lever has a non contact magneto resistive sensor to detect the operational positions - Google Patents

Manual control lever has a non contact magneto resistive sensor to detect the operational positions Download PDF

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Publication number
DE102004006166A1
DE102004006166A1 DE200410006166 DE102004006166A DE102004006166A1 DE 102004006166 A1 DE102004006166 A1 DE 102004006166A1 DE 200410006166 DE200410006166 DE 200410006166 DE 102004006166 A DE102004006166 A DE 102004006166A DE 102004006166 A1 DE102004006166 A1 DE 102004006166A1
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DE
Germany
Prior art keywords
sensor
resistive sensor
magneto
operating lever
detect
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.)
Withdrawn
Application number
DE200410006166
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German (de)
Inventor
Berthold Häcker
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.)
Linde Material Handling GmbH
Original Assignee
Linde GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Linde GmbH filed Critical Linde GmbH
Priority to DE200410006166 priority Critical patent/DE102004006166A1/en
Publication of DE102004006166A1 publication Critical patent/DE102004006166A1/en
Withdrawn legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05G—CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
    • G05G9/00—Manually-actuated control mechanisms provided with one single controlling member co-operating with two or more controlled members, e.g. selectively, simultaneously
    • G05G9/02—Manually-actuated control mechanisms provided with one single controlling member co-operating with two or more controlled members, e.g. selectively, simultaneously the controlling member being movable in different independent ways, movement in each individual way actuating one controlled member only
    • G05G9/04—Manually-actuated control mechanisms provided with one single controlling member co-operating with two or more controlled members, e.g. selectively, simultaneously the controlling member being movable in different independent ways, movement in each individual way actuating one controlled member only in which movement in two or more ways can occur simultaneously
    • G05G9/047—Manually-actuated control mechanisms provided with one single controlling member co-operating with two or more controlled members, e.g. selectively, simultaneously the controlling member being movable in different independent ways, movement in each individual way actuating one controlled member only in which movement in two or more ways can occur simultaneously the controlling member being movable by hand about orthogonal axes, e.g. joysticks
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05G—CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
    • G05G9/00—Manually-actuated control mechanisms provided with one single controlling member co-operating with two or more controlled members, e.g. selectively, simultaneously
    • G05G9/02—Manually-actuated control mechanisms provided with one single controlling member co-operating with two or more controlled members, e.g. selectively, simultaneously the controlling member being movable in different independent ways, movement in each individual way actuating one controlled member only
    • G05G9/04—Manually-actuated control mechanisms provided with one single controlling member co-operating with two or more controlled members, e.g. selectively, simultaneously the controlling member being movable in different independent ways, movement in each individual way actuating one controlled member only in which movement in two or more ways can occur simultaneously
    • G05G9/047—Manually-actuated control mechanisms provided with one single controlling member co-operating with two or more controlled members, e.g. selectively, simultaneously the controlling member being movable in different independent ways, movement in each individual way actuating one controlled member only in which movement in two or more ways can occur simultaneously the controlling member being movable by hand about orthogonal axes, e.g. joysticks
    • G05G2009/04703—Mounting of controlling member
    • G05G2009/04707—Mounting of controlling member with ball joint
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05G—CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
    • G05G9/00—Manually-actuated control mechanisms provided with one single controlling member co-operating with two or more controlled members, e.g. selectively, simultaneously
    • G05G9/02—Manually-actuated control mechanisms provided with one single controlling member co-operating with two or more controlled members, e.g. selectively, simultaneously the controlling member being movable in different independent ways, movement in each individual way actuating one controlled member only
    • G05G9/04—Manually-actuated control mechanisms provided with one single controlling member co-operating with two or more controlled members, e.g. selectively, simultaneously the controlling member being movable in different independent ways, movement in each individual way actuating one controlled member only in which movement in two or more ways can occur simultaneously
    • G05G9/047—Manually-actuated control mechanisms provided with one single controlling member co-operating with two or more controlled members, e.g. selectively, simultaneously the controlling member being movable in different independent ways, movement in each individual way actuating one controlled member only in which movement in two or more ways can occur simultaneously the controlling member being movable by hand about orthogonal axes, e.g. joysticks
    • G05G2009/0474—Manually-actuated control mechanisms provided with one single controlling member co-operating with two or more controlled members, e.g. selectively, simultaneously the controlling member being movable in different independent ways, movement in each individual way actuating one controlled member only in which movement in two or more ways can occur simultaneously the controlling member being movable by hand about orthogonal axes, e.g. joysticks characterised by means converting mechanical movement into electric signals
    • G05G2009/04755—Magnetic sensor, e.g. hall generator, pick-up coil

Abstract

The operating position of a manual actuator lever [1] is detected using a magneto resistive sensor [3]. The sensor detects the position without contact with the lever and responds to the magnetic field of a magnetic ball bearing [2].

Description

Die Erfindung betrifft ein Steuerorgan mit einem Bedienhebel und einem damit in Wirkverbindung stehenden berührungslosen Sensor.The The invention relates to a control member with a control lever and a operatively connected non-contact sensor.

Aus der DE 197 56 475 A1 ist ein gattungsgemäßes Steuerorgan bekannt, bei dem aus drei berührungslos betätigbaren Schaltern (Reed-Schalter) ein Sensor gebildet ist, mit dem ein Referenzsignal für die Nullstellung des Bedienhebels erzeugt wird und der von einem am unteren Ende des Bedienhebels angeordneten Permanentmagneten betätigtbar ist. In einer anderen Ausführungsform können auch auf dem Hall-Effekt basierende magnetische Sensoren verwendet werden, also Magnetfeldsensoren. Zur Erfassung der Auslenkrichtung des Auslenkwinkels des Bedienhebels ist ein ringförmiger Sensor vorgesehen, der als Induktivsensor ausgebildet sein kann.From the DE 197 56 475 A1 a generic control device is known in which from three contactless actuated switches (reed switch), a sensor is formed, with which a reference signal for the zero position of the operating lever is generated and which is actuated by a arranged at the lower end of the operating lever permanent magnet. In another embodiment, also based on the Hall effect magnetic sensors can be used, so magnetic field sensors. For detecting the deflection of the deflection angle of the operating lever, an annular sensor is provided, which may be formed as an inductive sensor.

Der vorliegenden Erfindung liegt die Aufgabe zu Grunde, ein Steuerorgan der eingangs genannten Art zur Verfügung zu stellen, dessen Aufbau im Hinblick auf die Erfassung der Auslenkung des Bedienhebels vereinfacht ist.Of the The present invention is based on the object, a control member to provide the type mentioned, whose structure simplified with regard to the detection of the deflection of the operating lever is.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, dass der Sensor als ein die Auslenkung des Bedienhebels erfassender magneto-resistiver Sensor ausgebildet ist. Es findet somit ein Sensor Verwendung, der den sogenannten „Magnetowiderstandseffekt" ausnutzt, also eine durch ein Magnetfeld verursachte Änderung des Widerstands in elektrisch leitfähigen Materialien detektiert. Dies ermöglicht einen simplen und funktionssicheren Aufbau des Steuerorgans.These Task is inventively characterized solved, that the sensor detects as a the deflection of the operating lever Magneto-resistive sensor is formed. Thus, a sensor is used, exploits the so-called "magnetoresistance effect", so one caused by a magnetic field change of resistance in electrically conductive Materials detected. this makes possible a simple and functionally reliable structure of the control body.

Gemäß einer vorteilhaften Ausgestaltung der Erfindung ist der Bedienhebel an einer magnetischen Lagerkugel befestigt. Dadurch wird eine sehr einfache Mechanik erzielt. Die magnetische Lagerkugel stellt das einzige bewegte Element dar und kann in einem Gleitlager gelagert sein, wodurch eine hohe Lebensdauer erzielbar ist. Eine Abdichtung ist hierbei nicht erforderlich, da die magnetische Lagerkugel wasserunempfindlich ist. Die Elektronik zur Detektion und Auswertung der Sensorsignale kann in Kunststoff vergossen sein, wodurch eine sichere Abdichtung der elektronischen Bauelemente erreicht wird.According to one advantageous embodiment of the invention is the operating lever attached to a magnetic bearing ball. This will be a very simple mechanics achieved. The magnetic bearing ball represents that only moving element and can be stored in a plain bearing be, whereby a long life is achieved. A seal is not required, as the magnetic bearing ball insensitive to water is. The electronics for the detection and evaluation of the sensor signals can be potted in plastic, creating a secure seal the electronic components is achieved.

Sofern die Lagerkugel rotationssymmetrisch magnetisiert ist, kann der Bedienhebel und damit die Lagerkugel gedreht werden, ohne das Signal zu verändern.Provided the bearing ball is rotationally symmetric magnetized, the operating lever and rotate the bearing ball without changing the signal.

Besonders günstig ist es, wenn ein zum magneto-resistiven Sensor redundanter, zweiter magneto-resistiver Sensor vorgesehen ist. Dadurch ist eine Überwachung der Sensorfunktion möglich.Especially Cheap is it, if one to the magneto-resistive sensor redundant, second magneto-resistive sensor is provided. This is a monitoring the sensor function possible.

In Weiterbildung der Erfindung ist der Bedienhebel in einem x-y-Koordinatensystem mindestens in x-Richtung und in y-Richtung auslenkbar, wobei sowohl der x-Richtung als auch der y-Richtung jeweils mindestens ein magneto-resistiver Sensor zugeordnet ist. Es lässt sich also auf mit geringem Aufwand ein Steuerorgan mit zwei Bewegungsachsen des Bedienhebels realisieren.In Further development of the invention is the operating lever in an x-y coordinate system deflectable at least in the x-direction and in the y-direction, wherein both The x-direction and the y-direction in each case at least one magneto-resistive Sensor is assigned. It leaves Thus, with little effort, a control organ with two axes of motion of the Realize operating lever.

Sofern dem magneto-resistiven Sensor der x-Richtung und dem magneto-resistiven Sensor der y-Richtung jeweils ein zweiter magneto-resistiver Sensor zugeordnet ist, kann auch hier die Sensorfunktion (in beiden Achsen) überwacht werden.Provided the magneto-resistive sensor of the x-direction and the magneto-resistive Sensor of the y-direction in each case a second magneto-resistive sensor The sensor function (in both axes) can also be monitored here become.

Weitere Vorteile und Einzelheiten der Erfindung werden anhand des in den schematischen Figuren dargestellten Ausführungsbeispieles näher erläutert. Dabei zeigtFurther Advantages and details of the invention will be described with reference to the Schematic figures illustrated embodiment explained in more detail. there shows

1 eine Seitenansicht eines erfindungsgemäßen Steuerorgans und 1 a side view of a control device according to the invention and

2 eine Draufsicht auf eine Variante des Steuerorgans. 2 a plan view of a variant of the control member.

Das erfindungsgemäße Steuerorgan weist einen Bedienhebel 1 auf, der an einer magnetischen Lagerkugel 2 befestigt ist. Die Lagerkugel 2 ist in einem in den Figuren nicht dargestellten Gleitlager gelagert.The control device according to the invention has an operating lever 1 on, on a magnetic bearing ball 2 is attached. The bearing ball 2 is mounted in a slide bearing, not shown in the figures.

Mit Abstand zur Lagerkugel 2 ist ein magneto-resistiver Sensoren 3 angeordnet, der mit der magnetischen Lagerkugel 2 zusammenwirkt. Bei einer Schwenkbewegung des Bedienhebels aus der (vertikalen) Nullstellung heraus wird im Sensor 3 ein Signal erzeugt, das in einer geeigneten Auswerteschaltung verarbeitet wird. Ein zweiter magneto-resistiver Sensor 4 dient einer redudanten Signalerzeugung.At a distance to the bearing ball 2 is a magnetoresistive sensor 3 arranged with the magnetic bearing ball 2 interacts. With a pivotal movement of the operating lever from the (vertical) zero position out in the sensor 3 generates a signal that is processed in a suitable evaluation circuit. A second magneto-resistive sensor 4 serves a redudante signal generation.

Die Lagerkugel 2 ist rotationssymmetrisch magnetisiert (hier: Südpol oben, Nordpol unten). Damit ist es möglich, die Lagerkugel 2 in der Lagerung zu drehen ohne dabei das Signal zu verändern.The bearing ball 2 is rotationally symmetric magnetized (here: south pole above, north pole below). This makes it possible for the bearing ball 2 to rotate in storage without changing the signal.

Die Ausführungsvariante gemäß 2 zeigt eine Anordnung, bei der das Steuerorgan die Bewegungen des Bedienhebels 1 in den zwei Achsen eines x-y-Koordinatensystems erfasst. Hierbei ist der x-Achse der Sensor 4 und der y-Achse der Sensor 3 zugeordnet. Es versteht sich, dass auch hier jeder Achse ein redundanter zweiter Sensor zugeordnet sein kann.The embodiment according to 2 shows an arrangement in which the control member, the movements of the operating lever 1 in the two axes of an xy coordinate system. Here, the x-axis is the sensor 4 and the y-axis of the sensor 3 assigned. It goes without saying that here as well a redundant second sensor is assigned to each axis can be.

Claims (6)

Steuerorgan mit einem Bedienhebel und einem damit in Wirkverbindung stehenden berührungslosen Sensor, dadurch gekennzeichnet, dass der Sensor (3) als ein die Auslenkung des Bedienhebels (1) erfassender magneto-resistiver Sensor ausgebildet ist.Control member having an operating lever and a non-contact sensor operatively connected thereto, characterized in that the sensor ( 3 ) as a the deflection of the operating lever ( 1 ) detecting magneto-resistive sensor is formed. Steuerorgan nach Anspruch 1, dadurch gekennzeichnet, dass der Bedienhebel (1) an einer magnetischen Lagerkugel (2) befestigt ist.Control member according to claim 1, characterized in that the control lever ( 1 ) on a magnetic bearing ball ( 2 ) is attached. Steuerorgan nach Anspruch 2, dadurch gekennzeichnet, dass die Lagerkugel (2) rotationssymmetrisch magnetisiert ist.Control member according to claim 2, characterized in that the bearing ball ( 2 ) is rotationally symmetric magnetized. Steuerorgan nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass ein zum magneto-resistiven Sensor (3) redundanter, zweiter magneto-resistiver Sensor (4) vorgesehen ist.Control element according to one of Claims 1 to 3, characterized in that a magneto-resistive sensor ( 3 ) redundant, second magneto-resistive sensor ( 4 ) is provided. Steuerorgan nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass der Bedienhebel (1) in einem x-y-Koordinatensystem mindestens in x-Richtung und in y-Richtung auslenkbar ist, wobei sowohl der x-Richtung als auch der y-Richtung jeweils mindestens ein magneto-resistiver Sensor (3 bzw. 4) zugeordnet ist.Control member according to one of claims 1 to 4, characterized in that the operating lever ( 1 ) is deflectable in an xy-coordinate system at least in the x-direction and in the y-direction, wherein both the x-direction and the y-direction are each at least one magneto-resistive sensor ( 3 respectively. 4 ) assigned. Steuerorgan nach Anspruch 5, dadurch gekennzeichnet, dass dem magnetoresistiven Sensor (4) der x-Richtung und dem magneto-resistiven Sensor (3) der y-Richtung jeweils ein zweiter magneto-resistiver Sensor zugeordnet ist.Control member according to claim 5, characterized in that the magnetoresistive sensor ( 4 ) of the x-direction and the magneto-resistive sensor ( 3 ) of the y-direction in each case a second magneto-resistive sensor is assigned.
DE200410006166 2004-02-07 2004-02-07 Manual control lever has a non contact magneto resistive sensor to detect the operational positions Withdrawn DE102004006166A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE200410006166 DE102004006166A1 (en) 2004-02-07 2004-02-07 Manual control lever has a non contact magneto resistive sensor to detect the operational positions

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200410006166 DE102004006166A1 (en) 2004-02-07 2004-02-07 Manual control lever has a non contact magneto resistive sensor to detect the operational positions

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1980928A1 (en) * 2007-04-14 2008-10-15 Delphi Technologies, Inc. Electric switch
EP2219094A2 (en) 2009-02-17 2010-08-18 Linde Material Handling GmbH Control device for a mobile work machine, in particular an industrial truck
EP1982812B2 (en) † 2007-04-19 2018-12-19 Liebherr-Mischtechnik GmbH Control for mixer truck

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1980928A1 (en) * 2007-04-14 2008-10-15 Delphi Technologies, Inc. Electric switch
EP1982812B2 (en) † 2007-04-19 2018-12-19 Liebherr-Mischtechnik GmbH Control for mixer truck
EP2219094A2 (en) 2009-02-17 2010-08-18 Linde Material Handling GmbH Control device for a mobile work machine, in particular an industrial truck
DE102009010244A1 (en) 2009-02-17 2010-08-19 Linde Material Handling Gmbh Control device for a mobile work machine, in particular an industrial truck

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Legal Events

Date Code Title Description
8127 New person/name/address of the applicant

Owner name: LINDE MATERIAL HANDLING GMBH & CO. KG, 63743 A, DE

8127 New person/name/address of the applicant

Owner name: LINDE MATERIAL HANDLING GMBH, 63743 ASCHAFFENB, DE

8141 Disposal/no request for examination
R005 Application deemed withdrawn due to failure to request examination

Effective date: 20110208

R082 Change of representative

Representative=s name: PATENTSHIP PATENTANWALTSGESELLSCHAFT MBH, DE

R082 Change of representative

Representative=s name: PATENTSHIP PATENTANWALTSGESELLSCHAFT MBH, DE