WO2007076789A2 - Dispositif de reglage d'un element de vehicule automobile - Google Patents

Dispositif de reglage d'un element de vehicule automobile Download PDF

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Publication number
WO2007076789A2
WO2007076789A2 PCT/DE2006/002218 DE2006002218W WO2007076789A2 WO 2007076789 A2 WO2007076789 A2 WO 2007076789A2 DE 2006002218 W DE2006002218 W DE 2006002218W WO 2007076789 A2 WO2007076789 A2 WO 2007076789A2
Authority
WO
WIPO (PCT)
Prior art keywords
spring element
actuator
adjustment position
spring
shape memory
Prior art date
Application number
PCT/DE2006/002218
Other languages
German (de)
English (en)
Other versions
WO2007076789A3 (fr
Inventor
Bernhard Meier
Joachim Klesing
René Landmann
Original Assignee
Webasto 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 Webasto Ag filed Critical Webasto Ag
Publication of WO2007076789A2 publication Critical patent/WO2007076789A2/fr
Publication of WO2007076789A3 publication Critical patent/WO2007076789A3/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60J—WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FOR VEHICLES
    • B60J7/00—Non-fixed roofs; Roofs with movable panels, e.g. rotary sunroofs
    • B60J7/02—Non-fixed roofs; Roofs with movable panels, e.g. rotary sunroofs of sliding type, e.g. comprising guide shoes
    • B60J7/04—Non-fixed roofs; Roofs with movable panels, e.g. rotary sunroofs of sliding type, e.g. comprising guide shoes with rigid plate-like element or elements, e.g. open roofs with harmonica-type folding rigid panels
    • B60J7/057—Driving or actuating arrangements e.g. manually operated levers or knobs
    • B60J7/0573—Driving or actuating arrangements e.g. manually operated levers or knobs power driven arrangements, e.g. electrical
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60J—WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FOR VEHICLES
    • B60J7/00—Non-fixed roofs; Roofs with movable panels, e.g. rotary sunroofs
    • B60J7/22—Wind deflectors for open roofs

Definitions

  • the present invention relates to a device for adjusting a motor vehicle component, such as a wind deflector, a sunroof, a shutter or the like.
  • Such a wind deflector is known for example from the publication DE 198 02 301 Al.
  • the wind deflector described therein has an electric motor, which is assigned only to the wind deflector for an adjustment thereof.
  • the applicant adjustable wind deflector for a sunroof system are known, which have an actuating element that undergoes a change in shape in response to an external change in temperature.
  • the top material consists of two composite materials with shape memory properties that can be activated at different temperatures.
  • the top material is heated up to a predetermined first temperature at which the first composite material with shape memory property is activated and softens the top, so that it can be rolled up or folded in.
  • the second memory material is preferably a metallic material, in particular from the group of so-called shape-memory materials.
  • This object is achieved by the adjustment device with the features of claim 1.
  • the adjusting device has at least one actuator element, which has a shape memory material; and at least one power supply device which can be driven to energize the at least one actuator element as a function of a desired change in shape thereof.
  • the present invention over the above-mentioned approaches has the advantage that the at least one power supply means for supplying a heating current can be controlled such that the at least one ac t ⁇ relement of a shape memory material moves a desired travel or actuates an associated actuator accordingly.
  • shape memory materials have a high rigidity and thus a high force, they only require a small space.
  • the actuation element is heated when the at least one power supply device is energized by the resistance-induced loss of heat of the shape memory material, which advantageously allows very short reaction times or switching times.
  • the at least one actuator element is designed as a first spring element made of shape memory material, for example as a spiral spring made of shape memory material, the axial extent of which depends on the current supplied by the first power supply. change device occurring heat loss changes.
  • Such spring elements of shape memory material can be produced in a simple and cost-effective manner, for example of a NiTi alloy, a CuAlNi alloy or a CuZnAl alloy. These materials allow very high cycle numbers.
  • the first spring element made of shape memory material is operatively connected to a positioner such that a change in the axial extension of the first spring element as a function of the energization thereof moves the actuator from a first adjustment position to a second adjustment position.
  • the actuator in turn can be coupled with the associated motor vehicle component in a suitable manner such that a movement of the actuator causes the corresponding adjustment of this vehicle component.
  • a second spring element is provided, which is arranged relative to the actuator opposite to the first spring element of shape memory material and which is also in operative connection with the actuator.
  • the second spring element is preferably formed analogously to the first spring element as a spiral spring.
  • the second spring element is designed as a return spring made of steel or the like for a provision of the actuator from the second adjustment position in the first adjustment position.
  • the return spring is preferably not made of a shape memory material and is therefore not energized changed shape, but the return spring is used exclusively by their FedervorSpannung a provision of the actuator in a predetermined starting position or in the first adjustment position.
  • the first spring element made of shape memory material undergoes longitudinal expansion when energized and displaces the actuator against the restoring force of the second spring element from the first adjustment position into the second adjustment position.
  • at least one locking / unlocking device is preferably provided in the device, which locks or unlocks the actuator in at least one of the adjustment positions.
  • the energization of the first spring element can be withdrawn after an adjustment of the actuator and a lock by the locking device, the adjuster remains by the lock in the second adjustment position.
  • the unlocked actuator is moved back by the restoring force of the second spring element from the second adjustment position to the first adjustment position.
  • an actuator device is provided which causes an energization of the first spring element, an adjustment of an associated actuator against a restoring force of a second spring element.
  • the second spring element may consist of a shape memory material analogously to the first spring element.
  • the second spring element is also formed as a spiral spring of a shape memory material and connected to an associated power supply device. Analogous to the first spring element, the axial extension of the second spring element changes as a function of the loss heat occurring as a result of the current supply by means of the second power supply device.
  • the first spring element is in this case at a predetermined energization of the same in an issued state and the second spring element in no Be ⁇ tromung the same in a retracted state such that they adjust the actuator from a first adjustment position to a second adjustment position.
  • At least one locking / unlocking device is also provided in this embodiment, which locks or unlocks the actuator in the first and / or the second adjustment position. If the energization of the first spring element is withdrawn and, in contrast, the second spring element is subjected to a predetermined current supply, the spring elements move an unlocked actuator from the second adjustment position back into the first adjustment position.
  • an actuator system is created from two opposing spring elements made of shape memory material, which has an enlarged travel relative to the actuator system with only one spring element of shape memory material, since the second spring element of shape memory material additionally expands when energized and against the spring force of the first spring element adjusted in the axial direction.
  • the adjusting device to a drive device, which is coupled for a common or separate control of the power supply device (s) with these such that spring elements of shape memory material are energized alternately or simultaneously with predetermined currents.
  • the power supply lines are not located in the area of the moving spring elements but rather on the insensitive cheren sections of the individual Federlemente in the field of spring mounts.
  • the spring elements are each guided on an associated guide pin, mounted on associated spring holders and arranged sealed in a housing.
  • such actuator systems can be mounted as a compact device in a simple and cost-effective manner in the area of the vehicle component to be adjusted.
  • an adjustment of a sunroof cover, an actuation of a wind deflector, a placement of a spoiler, an opening or closing of ventilation flaps, an actuation of a Ausstellppers or the like is possible.
  • Figure Ia is a schematic representation of an adjusting device according to a first preferred embodiment of the present invention in a first adjustment position
  • FIG. 1 b shows a schematic representation of an adjusting device according to a first preferred embodiment of the present invention in a second adjustment position
  • Figure 2a is a schematic representation of an adjustment device according to a second preferred Embodiment of the present invention in a first adjustment position
  • Figure 2b is a schematic representation of an adjustment device according to a second preferred
  • Embodiment of the present invention in a second adjustment position.
  • Figure 1 illustrates a schematic representation of an adjusting device according to a first preferred embodiment of the present invention, wherein the adjusting device is in a first adjustment position, for example, the starting position.
  • the exemplary adjusting device has a carrier 1 on which a first spring element 2 is provided.
  • the first spring element 2 is mounted on a guide pin 3 for guiding and positioning the first spring element 2.
  • the first spring element 2 is also mounted in an associated spring holder on the carrier 1.
  • the first spring element 2 is formed according to the present embodiment of a shape memory material, such as a NiTi alloy, a CuAlNi alloy or a CuZnAl alloy.
  • shape memory alloys are suitable shape memory materials and allow very high cycle numbers. In the case of such shape memory materials, deformation results when heated. These materials can also be easily deformed at low temperatures and go into theirs when heated In the case of such shape memory alloys, martensitic phase transformations occur, and the forced change in shape due to heating or preventing the change in shape can produce very high restoring forces.
  • the adjusting device has a power supply unit 4, which is electrically connected to the ends of the first spring element 2 either directly or via associated spring holders and generates a heating current through the first spring element 2.
  • the power supply device 4 applies a voltage of approximately 12 V such that a current dependent on the existing electrical resistance flows through the first spring element 2 in approximately from 15 A to 20 A.
  • the first spring element 2 then heats up as a result of the loss-related heat loss resulting therefrom, so that the first spring element 2 expands by a predetermined adjustment path as a function of the selected shape memory material according to the present exemplary embodiment.
  • analog shape memory materials which undergo a length reduction from a predetermined transition temperature.
  • a shape memory material for the first spring element 2 is selected, which in a heat from a predetermined transition temperature, for example, a temperature between 80 0 C and 120 0 C, from the contracted state shown in Figure Ia in a in FIG Ib expanded state expands.
  • Spring holder is arranged a controller 5, to which the upper end of the first spring element 2 or the end associated with this spring holder.
  • the guide pin 3 is preferably coupled to the actuator 5 such that it is aligned between the carrier 1 and the actuator 5 perpendicular to the contact surfaces thereof.
  • a second spring element 6 which is preferably formed analogous to the first spring element 2 as a spiral spring or the like.
  • the second spring element 6 does not consist of a shape memory material but of steel or the like.
  • the second spring element 6 is also pushed for a guide thereof on an associated guide pin 7, wherein the guide pin 7 and the guide pin 3 may advantageously be integrally formed with each other and protrude through a passage opening in the actuator 5.
  • the second spring element 6 is for support at the lower end of the upper surface of the actuator 5 and at the upper end to a lower surface of an associated support member 8 at.
  • the device may be encapsulated as a holistic device, or different vehicle sections may represent the individual carriers or supporting elements of the device.
  • the actuator 5 is thus arranged between the two spring elements 2 and 6 and is adjusted from the first adjustment position shown in FIG. 1 a into a second adjustment position shown in FIG. 1 b as a function of the spring states of the individual spring elements 2 and 6.
  • an adjustment device can be used to set up a sliding roof cover, to actuate a wind deflector, to set up a spoiler, to open or close ventilation flaps, to operate an opening window or the like.
  • FIG. 1b illustrates a schematic representation of the adjusting device according to the first preferred embodiment of the present invention, the adjusting device being in a second adjusting position.
  • a voltage of, for example, 12 V to the ends of the first spring element 2, it is charged with a heating current of for example 15 A to 20 A, so that the first spring element 2 expands in the axial direction due to the configuration of a shape memory material, as in FIG Ib can be seen in comparison with Figure Ia and indicated by the double arrow shown.
  • the power supply device 4 is preferably connected to a drive device (not shown) which correspondingly controls the power supply device 4 for supplying the current necessary for the heating of the first spring element 2 as a function of the desired change in shape of the first spring element 2.
  • the transition temperature at which the first spring element 2 transitions from its initial state to its expanded state is preferably selected such that, when operating in the region of the component to be adjusted, it is above the maximum ambient temperature occurring there, ie preferably above approximately 85 0 C. This ensures that the first spring element 2 is not heated by the environ- Temperature of the air is aufheist to a temperature which is above the transition temperature. In such a case, the first spring element 2 would expand independently of a generated heating current and move in the extended position in Figure Ib.
  • the actuator 5 With an expansion of the first spring element 2 due to the heating current, the actuator 5 is moved against the spring force of the second spring element 6 in the upward direction, as shown in Figure Ib.
  • the adjustment path is thus dependent in particular on the spring force of the second spring element 6, on the material properties of the shape memory material of the first spring element 2 and on the individual geometric dimensions thereof.
  • the temperature of the first spring element 2 falls after a predetermined period below the critical temperature, so that the first spring element 2 from the extended state shown in Figure Ib in the illustrated in Figure Ia contracted state returns.
  • the second spring element 6 as the return spring adjusts the actuator 5 in the downward direction due to the spring preload of the second spring element 6 and into the first adjustment position or initial position shown in FIG. 1a.
  • the adjusting device further comprises a locking or unlocking device, not shown, which locks the adjuster in the second adjustment position shown in Figure Ib.
  • a locking or locking of the actuator 5 in the second adjustment position energization of the first spring element 2 can be withdrawn without the second spring element 6 due to the spring biasing of the same, the locked actuator 5 in the Starting position or the first adjustment position, can reset. Only when the actuator 5 is unlocked by the locking or unlocking device due to the restoring force of the second spring element 6 is an adjustment of the actuator 5 of the second adjustment shown in Figure Ib in the first Verstellat shown in Figure Ia. Starting position.
  • the second spring element 6 made of shape-memory material is energized analogously to the first spring element 2, preferably via associated spring holders having a predetermined heating current for heating the same.
  • a power supply device 4 is provided, which either as a separate or preferably as a common power supply device 4 for a power supply of both the first spring element 2 and the second spring element 6 is formed.
  • a common ground terminal GND of the power supply device 4 can be used and switched over a switching device with appropriate control between energization of the first spring element 2 and the second spring element 6.
  • the two spring elements 2 and 6 are not energized, only one of the two spring elements 2, 6 or both spring elements 2, 6 energized together. In the latter case, with different expansions of the two spring elements 2 and 6, a predetermined intermediate travel can be accomplished.
  • the first spring element 2 is not charged with a heating current, whereas on the second spring element 6, a predetermined heating Ström is set, which causes heating of the second spring element 6 above the transition temperature. Due to the heating due to the resistive heat loss, a change in state of the second spring element 6 takes place, for example, in that the axial longitudinal extension of the second spring element 6 expands and presses the actuator 5 in the downward direction, as indicated schematically by the arrows in FIG. 2 a.
  • Locking or unlocking be provided, which locks the actuator 5 in the position shown in Figure 2a and optionally unlocked at a certain time even with a withdrawal of the energization of the first spring element 6.
  • FIG. 2b illustrates a view of the adjusting device in a second adjusting position, in which the adjuster 5 is displaced in the upward direction from the first adjusting position shown in FIG. 2a into the second adjusting position shown in FIG. 2b.
  • the energization of the second spring element 6 has been withdrawn, whereas, for example, by a switching device, the Stromerssein- device 4 energizes the first spring element 2 accordingly makes.
  • Such a control can be performed, for example, by a drive device connected to the power supply device 4, reference being made in this regard to the comments on the first exemplary embodiment according to FIGS. 1 a and 1 b.
  • the selection of the shape memory materials of the individual spring elements and the respective energizations are preferably to be selected such that by a corresponding Actuation of the power supply device 4 and thus the spring elements 2 and 6 of the actuator 5 is adjusted due to an expansion of a spring element or a shortening of a Federelemen- tes in a predetermined adjustment position, wherein in a withdrawal of the energization of a previously energized Federlementes and thus Connected energization of a previously de-energized Federlementes an adjustment of the actuator 5 in a second, different from the first adjustment position adjustment occurs.
  • both spring elements are energized accordingly, wherein the total achievable adjustment results from the differences in the dimensions of the individual Federlemente when energized and not energized state.
  • various adjustment positions can be achieved by suitable controls and suitable material selection with the preferred adjusting device according to the present invention.
  • the travel can advantageously be increased with suitable material selection and suitable control, in addition to a restoring force due to the spring bias is still a restoring force due to the sudden expansion of the spring elements.
  • the ambient temperature in the region of the vehicle component to be adjusted can additionally be taken into account, ie the spring elements 2, 6 are energized as a function of the instantaneous ambient temperature, that the shape memory material of the spring elements increases just above the transition temperature for an expansion or shortening thereof.
  • An electrical contacting of the spring elements 2 and / or 6 can take place either directly or via preferably associated spring holders, so that the connecting lines are not provided disturbingly in the mechanically active region.
  • reaction times or the adjustment times of the two spring elements 2 and 6 can be selected in a desired manner as a function of the current intensity by the control device or the controlled power supply device 4 with a corresponding choice of material.
  • the present invention provides an adjusting device consisting of at least one actuator of a shape memory material, wherein the actuator is energized in a suitable manner for a desired displacement with a predetermined heating current.
  • Such adjusting device has the advantage over the approaches mentioned that a completely silent adjustment, a small installation space and a low-cost adjustment is created.
  • different adjustment positions can be set by different actuation units.
  • the entire device can be encapsulated consisting of spring elements, guide pins, actuator and contact surfaces in a common housing, which preferably has a low heat transfer coefficient, so that the heat loss in the spring element is not discharged to the outside and damage adjacent components.
  • the guide pin, the actuator, the contact surfaces of the heating and the shape memory material having portions and all other components of the device with the exception of the spring elements are preferably formed of materials with a low coefficient of thermal conductivity, so that heat dissipation or heat transfer is reduced.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Springs (AREA)
  • Control Of Electric Motors In General (AREA)

Abstract

L'invention concerne un dispositif servant à régler un élément de véhicule automobile (9). Le dispositif selon l'invention comprend au moins un élément d'actionnement (2 ; 2, 6) présentant un matériau à mémoire de forme, ainsi qu'au moins un dispositif d'alimentation en courant (4) qui est commandé pour alimenter l'élément d'actionnement (2 ; 2, 6) en courant en fonction d'une modification de forme désirée de ce dernier.
PCT/DE2006/002218 2005-12-12 2006-12-12 Dispositif de reglage d'un element de vehicule automobile WO2007076789A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200510059605 DE102005059605B4 (de) 2005-12-12 2005-12-12 Vorrichtung zum Verstellen einer Kraftfahrzeugkomponente
DE102005059605.3 2005-12-12

Publications (2)

Publication Number Publication Date
WO2007076789A2 true WO2007076789A2 (fr) 2007-07-12
WO2007076789A3 WO2007076789A3 (fr) 2007-09-13

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2006/002218 WO2007076789A2 (fr) 2005-12-12 2006-12-12 Dispositif de reglage d'un element de vehicule automobile

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DE (1) DE102005059605B4 (fr)
WO (1) WO2007076789A2 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008036887B4 (de) * 2008-08-07 2010-05-06 Daimler Ag Windabweiser mit linear oszillierendem Abweiserelement
DE102018100741A1 (de) * 2018-01-15 2019-07-18 Webasto SE Windabweiseranordnung und Dach eines Fahrzeugs
CN110486396A (zh) * 2018-05-15 2019-11-22 杨斌堂 止转机构
DE102018128438B4 (de) 2018-11-13 2024-09-19 Leibniz-Institut Für Festkörper- Und Werkstoffforschung Dresden E.V. Verfahren zur Herstellung von einteiligen Gelenken, Aktoren, Sensoren, Hub- undVerstellelementen, Stellgliedern in Regelkreisen oder Federpaketen in Dämpfungssystemen aus Formgedächtnismaterial sowie einteilige Gelenke, Aktoren, Sensoren, Hub- und Verstellelemente, Stellglieder in Regelkreisen oder Federpakete in Dämpfungssystemen aus Formgedächtnismaterial

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2068545A (en) * 1980-02-01 1981-08-12 Delta Materials Research Ltd Temperature-responsive actuating elements
JP2001003850A (ja) * 1999-06-18 2001-01-09 Toki Corporation Kk 形状記憶合金アクチュエータ
DE20317091U1 (de) * 2003-11-07 2004-03-04 Arvinmeritor Gmbh Windabweiservorrichtung für ein Schiebedachsystem

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5938146A (ja) * 1982-08-25 1984-03-01 Ichikoh Ind Ltd 格納式前照灯の駆動装置
DE19802301A1 (de) * 1998-01-22 1999-07-29 Bosch Gmbh Robert Windabweiser für ein mit einem Schiebedach ausgestattetes Kraftfahrzeug
DE19934011C2 (de) * 1999-07-20 2002-04-18 Daimler Chrysler Ag Verdeck für ein Kraftfahrzeug, insbesondere Cabriolet
DE10137175A1 (de) * 2001-07-31 2003-02-27 Audi Ag Motorabdeckung eines Kraftfahrzeugs mit wenigstens einer Be- und/oder Entlüftungsöffnung, mit einem Verschlusselement zum Verschließen der Be- und/oder Entlüftungsöffnung

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2068545A (en) * 1980-02-01 1981-08-12 Delta Materials Research Ltd Temperature-responsive actuating elements
JP2001003850A (ja) * 1999-06-18 2001-01-09 Toki Corporation Kk 形状記憶合金アクチュエータ
DE20317091U1 (de) * 2003-11-07 2004-03-04 Arvinmeritor Gmbh Windabweiservorrichtung für ein Schiebedachsystem

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DE102005059605B4 (de) 2010-04-08
WO2007076789A3 (fr) 2007-09-13
DE102005059605A1 (de) 2007-07-05

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