EP1625362A1 - Commande incrementale - Google Patents

Commande incrementale

Info

Publication number
EP1625362A1
EP1625362A1 EP04729441A EP04729441A EP1625362A1 EP 1625362 A1 EP1625362 A1 EP 1625362A1 EP 04729441 A EP04729441 A EP 04729441A EP 04729441 A EP04729441 A EP 04729441A EP 1625362 A1 EP1625362 A1 EP 1625362A1
Authority
EP
European Patent Office
Prior art keywords
contour
driver element
drive according
disk
incremental
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Withdrawn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
EP04729441A
Other languages
German (de)
English (en)
Inventor
Jürgen Adams
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.)
Continental Automotive GmbH
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Publication of EP1625362A1 publication Critical patent/EP1625362A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
    • H02N2/00—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction
    • H02N2/10—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction producing rotary motion, e.g. rotary motors
    • H02N2/105—Cycloid or wobble motors; Harmonic traction motors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K35/00—Instruments specially adapted for vehicles; Arrangement of instruments in or on vehicles
    • B60K35/60—Instruments characterised by their location or relative disposition in or on vehicles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H1/00—Toothed gearings for conveying rotary motion
    • F16H1/28—Toothed gearings for conveying rotary motion with gears having orbital motion
    • F16H1/32—Toothed gearings for conveying rotary motion with gears having orbital motion in which the central axis of the gearing lies inside the periphery of an orbital gear
    • 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
    • G01D13/00—Component parts of indicators for measuring arrangements not specially adapted for a specific variable
    • G01D13/22—Pointers, e.g. settable pointer
    • 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
    • G01D5/02—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 mechanical means
    • G01D5/04—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 mechanical means using levers; using cams; using gearing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H1/00—Toothed gearings for conveying rotary motion
    • F16H1/28—Toothed gearings for conveying rotary motion with gears having orbital motion
    • F16H1/32—Toothed gearings for conveying rotary motion with gears having orbital motion in which the central axis of the gearing lies inside the periphery of an orbital gear
    • F16H2001/327—Toothed gearings for conveying rotary motion with gears having orbital motion in which the central axis of the gearing lies inside the periphery of an orbital gear with orbital gear sets comprising an internally toothed ring gear

Definitions

  • the present invention relates to an incremental drive, in particular for a pointer instrument of a motor vehicle, with an axis of rotation.
  • pointer instruments are usually integrated in an instrument panel, which signal a large amount of information to a driver, such as, for example, the speed of the vehicle, the speed of the engine or the fill level.
  • a driver such as, for example, the speed of the vehicle, the speed of the engine or the fill level.
  • these instruments must be arranged in the driver's constant field of vision, which means that the installation space available in the dashboard is often very limited or insufficient.
  • Pointer instruments generally have motors or moving-coil or moving-iron drives and cross-wound drives. Both DC motors and stepper motors are used as motors. Both types of motor have reduction gears, so that a position of a pointer can be changed in the smallest steps or angles. The hands are controlled by means of stepper motors controlled by digital circuits and brought to the position of a dial corresponding to a measured value without adjustment.
  • Common pointer drives are usually designed so that sufficient adjustment and display dynamics can be achieved for all applications.
  • the drives designed for this purpose are also used for pointer instruments with low display dynamics for manufacturing reasons. Pointer instruments with low to very low display dynamics are, for example, the displays for the oil level or the oil temperature.
  • a disadvantage of the pointer instruments listed above is the large installation space required in relation to the pointer flag of a pointer for accommodating the drive or the motor. Furthermore, high manufacturing costs due to a large number of components and increased assembly costs are disadvantageous.
  • the object of the present invention is to provide an incremental drive, in particular for a pointer instrument of a motor vehicle, which requires a reduced installation space while at the same time simplifying the construction and reducing the production outlay.
  • an incremental drive in which the axis of rotation is connected to a disk drive and the disk drive has a contour disk with an outer contour, which is arranged concentrically to the axis of rotation and is connected to it, with a driver element surrounding the contour disk has an inner contour that is movable in an x and y direction with movement components transverse to the axis of rotation, the movement of the Inner contour of the driver element with the outer contour of the contour disk can be brought m top cover and the contour disk can be driven with the axis of rotation.
  • the proposed incremental drive has the advantage that it enables a very compact and flat construction and a pointer instrument having this drive requires a very small volume of space in a dashboard when it is installed, for example, in the dashboard of a motor vehicle.
  • the flat design of the disk drive allows a plurality of disk drives to be stacked in a pointer instrument.
  • the construction of double-pointer or multiple-pointer displays with pointers that can move independently of one another is thus significantly favored.
  • the disk drive advantageously has a transducer which exerts a mechanical force on the driver element.
  • the converter can be based here, for example, on the basis of a thermal or electromagnetic conversion of electrical variables into a mechanical movement.
  • the converter preferably has a bending beam which is heated by suitable heating means, for example by heating due to the supply of a current, by wrapping with a heating wire or by the arrangement of heating resistors, and the expansion exerts a mechanical force on the driver element.
  • the bending beam can be made as a bimetal or from a composite plastic. The use of a plastic with a high expansion coefficient enables free design and, moreover, simplified production. tion process in connection with the production of the contour disk and the driving element.
  • Guide pins are advantageously arranged in the driver element, which prevent the driver element from disengaging from the contour disk when the driver element moves, or prevent the contours of the contour disk and driver element from tilting.
  • the mechanical force causes a movement of the
  • FIG. 1 shows a schematic sectional illustration of a pointer instrument with two stacked disk drives
  • FIG. 2 shows a first exemplary embodiment of a drive in a schematic plan view
  • FIG. 3 shows a second exemplary embodiment of a drive in a schematic plan view
  • Figure 4 is a front view of the one shown in Figure 3
  • Figure 5 shows another embodiment of a drive in a schematic plan view
  • FIG. 1 shows a sectional view of a pointer instrument 1 with two disk drives 2 stacked in the pointer instrument 1.
  • the pointer instrument 1 is arranged on a carrier or printed circuit board 3, which has circuit arrangements (not shown here) which supply the pointer instrument 1 with voltages, for example and transmit the measured values to the analog pointer instrument 1.
  • An axis of rotation 4, 5 is assigned to each disk drive 2, so that the axes of rotation 4, 5 can rotate independently of one another.
  • the axis of rotation 4 is designed as a sleeve for the concentrically received axis of rotation 5.
  • a first pointer 6 is arranged radially on the axis of rotation 5 and a second pointer 7 is arranged radially on the axis of rotation 4.
  • Hands 6, 7 are conditions m different, spaced from each other to a dial 8 parallel planes.
  • Each of the two pointers 6, 7 can be rotated via a drive 2 at a possible angle of rotation of 0 ° to 360 ° in any angle section to display analog values shown on the dial 8.
  • the swivel ranges of the pointer flags of the individual pointers 6, 7 can also be of different sizes, so that, for example, the swivel range of the pointer flag of the first pointer 6 includes 90 ° and the swivel range of the pointer flag of the second pointer 7 270 °.
  • both axes of rotation 4, 5 shown here can also be designed as sleeves, which allow the passage of further axes of rotation or sleeves for further pointers, not shown here.
  • the first exemplary embodiment shown in FIG. 2 shows a drive according to the invention in a schematic plan view.
  • a round contour disk 9 with an outer contour is concentrically arranged on the axis of rotation 5 and is surrounded by a driver element 10 with a circular inner contour.
  • the driver element 10 is movable in the x or y direction with movement components transverse to the axis of rotation 5.
  • the inner contour of the driver element 10 engages in the outer contour of the contour disk 9 em and, by means of tangential force introduction, causes a drive m in the y direction perpendicular to the x direction, so that a rotational movement of the contour disk 9 is generated sequential control of the drive causes an elliptical movement pattern of the driver element 10.
  • the driver element 10 is provided on its outer opposite sides with a transducer 11 and a counter bearing 12.
  • the transducer 11 has a bending beam 14 arranged on the driver element 10 and a bending beam beams 14 receiving bearing block 15.
  • the counter bearing 12 is also designed as a bending beam 16 bearing against the driving element 10 with a bearing block 17 receiving the bending beam 16. If one of the bending beams 14 of the transducer 11 is heated by appropriate measures, such as the supply of a current, it expands and causes a mechanical force that acts on the driver element 10 and a linear movement in the direction of the one transducer 11 assigned and opposite thrust bearing 12. The linear movement causes an engagement of the inner contour of the driver element 10 m, the outer contour of the contour disk 9 such that the engagement causes a rotational movement of the contour disk 9.
  • the contoured disk 9 also rotates the axis of rotation 5, so that a pointer which is arranged on the axis of rotation 5 and is not visible here is gradually rotated.
  • the movable driver element 10 has guide pins 18 which prevent the contours of driver element 10 and contour disk 9 from disengaging or tilting, in particular when the contours are formed as teeth.
  • FIG. 3 shows a second exemplary embodiment of a drive according to the invention in a schematic plan view.
  • Adjacent sides of the driver element 10, which is of square design here, have the transducer 11 with the outwardly bent bending beam 14, the bearing block 15 receiving the bending beam 14, and heating resistors 19 arranged in sections on the bending beam 14.
  • the heating resistors 19 heat one of the bending beams 14 as a function of a desired direction of movement, so that it expands and the driver element 10 m in the direction of one of the transducers 11 assigned, arranged on the opposite side of the transducer 11 counter bearing 13 moves.
  • the counter bearing 13 is designed in this exemplary embodiment as a spring element 20 with a bearing block 21 receiving the spring element 20.
  • FIG. 4 shows the front view of the drive shown in FIG. 3.
  • the bending bar 14 is bent and touches the driver element 10 with its two ends.
  • the heating resistors 19 are each arranged below the bending bar 14.
  • FIG. 5 shows a further exemplary embodiment of a drive according to the invention in a schematic plan view.
  • the arrangement corresponds to that in FIG. 3, with another converter 22 being used.
  • the converter 22 comprises a hot wire 23 which is arranged parallel to an outer side of the driver element 10 and is under tension, the first end of which is fastened to a bearing block 24 and the other end of which is fastened to a deflection lever 25 which is arranged in parallel on the driver element 10.
  • the hot wire 23 can be designed as a thin resistance wire with a high coefficient of expansion. If the hot wire 23 is heated, it expands and enables the deflection lever 25 to be deflected by the spring force of the opposite spring element 20.
  • FIGS. 6a to 6e illustrate the rotary movement of the contour disk 9 which is generated due to the movement of the driver element 10.
  • FIG. 6a shows the inner contour of the driver element 10, which is in engagement with one another, with the outer contour of the contour disk 9, this position of the driver element 10 and the contour disk 9, for example, as the zero position of a pointer not shown here can be defined can.
  • a zero position of the pointer can also be defined by the fact that the inner contour of the driver element 10 is not in engagement with the outer contour of the contour disk 9, in which case the return of the pointer to the zero position is basically done in a simple manner via a return spring 26 arranged on the axis of rotation 4 can be achieved.
  • FIGS. 6b to 6e the zero position of the pointer is indicated by the representation of a first arrow 27 in all FIGS. 6a to 6e.
  • the driver element 10 and the contour disk 9 are shown in FIG. 6a in a coordinate system with x and Y axes for a simplified description of the force acting on the driver element 10.
  • the following description always assumes that the forces acting on the driver element 10 by means of a converter 11, 22 act parallel to the x or y axis
  • FIGS. 6b to 6d the incremental step action of the pointer is represented by a second arrow 28 which, owing to a force action from the left (in the x direction), FIG. 6b, a force action from above (against the y direction), FIG. 6c, an action of force from the right (counter to the x direction), FIG. 6d, and a further action of force from below (in the y direction), FIG. 6e, on the driver element 10, are gradually moved clockwise.
  • the action of force for example on the driver element 10 of FIG. 6a in the x direction, causes the movement of the driver element 10 m to the position shown in FIG. 6b.
  • the inner contour of the driver element 10 is covered with the outer contour of the contour disk 9 m, so that a Tangential force perpendicular to the x direction is effective, which moves the driver element 10 against the y direction and rotates the contour plate 9 about the axis of rotation 4.
  • the driver element 10 executes an elliptical movement pattern due to the alternating force action in the x or y direction.
  • the proposed drive can be used in particular with pointer instruments that have double or multiple pointers. Due to its compact design, it can be stacked in a pointer instrument and thus requires a small amount of space. It can be used for displays with low dynamics that do not have high requirements for the resolution of the analog value display, as well as for displays with high adjustment dynamics.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Instrument Panels (AREA)

Abstract

L'invention concerne une commande incrémentale, destinée en particulier à un instrument à aiguilles (1) d'un véhicule automobile, cet instrument comprenant un axe de rotation (4, 5) et une aiguille (6, 7) placée sur cet axe de rotation (4, 5). L'axe de rotation (4, 5) est relié à une commande à disque (2) qui comprend un disque profilé (9) présentant un profil extérieur, ainsi qu'un élément d'entraînement (10) entourant le disque profilé (9), cet élément d'entraînement (10) présentant un profil intérieur. Ledit élément d'entraînement (10) peut être déplacé dans des directions x et y avec des composantes de mouvement perpendiculaires à l'axe de rotation (4, 5) et le profil intérieur de l'élément d'entraînement (10) peut être mis en prise avec le profil extérieur du disque profilé (9). Le disque profilé (9) peut être entraîné avec l'axe de rotation (4, 5) par l'intermédiaire du mouvement de l'élément d'entraînement (10).
EP04729441A 2003-05-19 2004-04-26 Commande incrementale Withdrawn EP1625362A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10322836A DE10322836A1 (de) 2003-05-19 2003-05-19 Inkrementeller Antrieb
PCT/EP2004/050605 WO2004102127A1 (fr) 2003-05-19 2004-04-26 Commande incrementale

Publications (1)

Publication Number Publication Date
EP1625362A1 true EP1625362A1 (fr) 2006-02-15

Family

ID=33441054

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04729441A Withdrawn EP1625362A1 (fr) 2003-05-19 2004-04-26 Commande incrementale

Country Status (3)

Country Link
EP (1) EP1625362A1 (fr)
DE (1) DE10322836A1 (fr)
WO (1) WO2004102127A1 (fr)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006044000A1 (de) 2006-09-19 2008-03-27 Siemens Ag Elektromechanischer Stellantrieb
DE102007032851A1 (de) 2007-02-07 2008-08-14 Johnson Controls Automotive Electronics Gmbh Kraftfahrzeug-Anzeigeinstrument mit umgreifendem Zeiger
DE102007039327B4 (de) 2007-02-27 2017-08-31 Johnson Controls Automotive Electronics Gmbh Konisch skaliertes Anzeigeinstrument für ein Kraftfahrzeug und Verfahren zur Montage eines Zeigerinstruments
DE102007016114A1 (de) 2007-04-03 2008-10-09 Continental Automotive Gmbh Festkörperaktorischer, insbesondere piezoelektrischer Antrieb und Verfahren zum Gewinnen von Sensordaten aus einem festkörperaktorischen, insbesondere piezoelektrischen Antrieb
DE102007023200B4 (de) 2007-05-18 2011-07-28 Continental Automotive GmbH, 30165 Elektromechanischer Motor, insbesondere piezoelektrischer Mikroschrittantrieb
DE102007023199B4 (de) * 2007-05-18 2011-07-28 Continental Automotive GmbH, 30165 Elektromechanischer Motor, inbesondere piezoelektrischer Mikroschrittantrieb
DE102007023201A1 (de) * 2007-05-18 2008-11-20 Continental Automotive Gmbh Elektromechanischer Motor, insbesondere piezoelektrischer Mikroschrittantrieb
DE102007023217B4 (de) * 2007-05-18 2011-07-21 Continental Automotive GmbH, 30165 Elektromechanischer Motor, insbesondere piezoelektrischer Mikroschrittantrieb
DE102008021904A1 (de) 2008-05-02 2009-11-05 Siemens Aktiengesellschaft Rotationsantrieb
EP2213990B1 (fr) 2009-01-22 2016-08-17 Johnson Controls Technology Company Procédé de calibration et/ou de correction d'un dispositif d'affichage ayant une aiguille, l'aiguille étant mobile en rotation autour d'un axe de rotation
US8579448B2 (en) 2010-01-25 2013-11-12 Johnson Controls Technology Company Pointer structure of an instrument cluster
DE102010032713A1 (de) * 2010-07-29 2012-02-02 Johnson Controls Automotive Electronics Gmbh Anzeigevorrichtung

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1613087A1 (de) * 1967-12-15 1971-01-07 Dr Helmuth Frenk Elektromotor mit hochfrequenter Wechselstromspeisung
US5726520A (en) * 1993-08-02 1998-03-10 Bonneville Scientific Incorporated Direct drive field actuator motors
WO1997026702A1 (fr) * 1996-01-18 1997-07-24 Nicholas Binos Moteur
DE19952946A1 (de) * 1999-11-03 2001-05-17 Siemens Ag Elektromechanischer Motor
DE10063875A1 (de) * 2000-12-21 2002-07-04 Siemens Ag Anzeigeinstrument

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
None *
See also references of WO2004102127A1 *

Also Published As

Publication number Publication date
DE10322836A1 (de) 2004-12-23
WO2004102127A1 (fr) 2004-11-25

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