WO2014060061A1 - Electric damper for a motor vehicle - Google Patents

Electric damper for a motor vehicle Download PDF

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Publication number
WO2014060061A1
WO2014060061A1 PCT/EP2013/002833 EP2013002833W WO2014060061A1 WO 2014060061 A1 WO2014060061 A1 WO 2014060061A1 EP 2013002833 W EP2013002833 W EP 2013002833W WO 2014060061 A1 WO2014060061 A1 WO 2014060061A1
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WO
WIPO (PCT)
Prior art keywords
rotor
coil
field generating
ring
relative movement
Prior art date
Application number
PCT/EP2013/002833
Other languages
German (de)
French (fr)
Inventor
Marco Willems
Original Assignee
Audi 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 Audi Ag filed Critical Audi Ag
Publication of WO2014060061A1 publication Critical patent/WO2014060061A1/en

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Classifications

    • 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
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
    • F16F15/03—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using magnetic or electromagnetic means
    • F16F15/035—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using magnetic or electromagnetic means by use of eddy or induced-current damping
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K49/00—Dynamo-electric clutches; Dynamo-electric brakes
    • H02K49/02—Dynamo-electric clutches; Dynamo-electric brakes of the asynchronous induction type
    • H02K49/04—Dynamo-electric clutches; Dynamo-electric brakes of the asynchronous induction type of the eddy-current hysteresis type
    • H02K49/043—Dynamo-electric clutches; Dynamo-electric brakes of the asynchronous induction type of the eddy-current hysteresis type with a radial airgap

Definitions

  • the invention relates to an electric damper for a motor vehicle for damping a relative movement between two components according to the preamble of An ⁇ claim 1.
  • the DE 10 2010 035 084 AI describes an electric damper for a motor vehicle which damps a relative movement between two components.
  • the electric damper has a housing, wherein a stator is fixed in this housing. Relative to the stator, a rotor is rotatably arranged, which has field magnets or induction windings. The rotation of the rotor relative to the stator induces a voltage in the induction windings which decelerates and thereby damps the rotor.
  • the solution proposed in DE 10 2010 035 084 A1 has the disadvantage that a high relative speed between rotor and stator is necessary to generate a sufficient damping force.
  • the stator has at least two coil rings, on which segmental coil windings are arranged.
  • the generator has a rotor which comprises a rotor shaft which is connected in a rotationally fixed manner to at least one rotor disk.
  • field-generating means are arranged circumferentially annularly in segments of alternating magnetic polarity. The north-south orientation of the field-generating means is substantially orthogonal to the rotor shaft.
  • At least two coil rings are provided, which are arranged concentrically to the annularly arranged field generating means.
  • the radius field generating center ring is between the coil circle radii of the two coil rings.
  • the field generating middle ring protrudes in the axial direction between the two coil rings.
  • a voltage by which in turn generates a magnetic field which opposes the rotation of the rotor and thus it attenuates its movement upon rotation of the rotor Scheib indu ⁇ sheet in both adjacent coil rings. Due to the simultaneous induction in two coil rings the effective me field change is significantly increased compared to the prior art.
  • the field generating means may be mounted on at least two concentric circumferences on the rotor disk. They are arranged so that in the radial direction opposite field generating means have a different polarity.
  • the field generating agent ring radii are in the radial direction between the coil ring radii.
  • At least two field generating middle ring are provided, which are net angeord between three coil rings.
  • the field-generating means are designed as permanent magnets.
  • the excitation windings of the coil rings are connected to a resistor. About this resistance, a damping can be set. About a variable resistor, this damping is easily adjustable. The energy gained from the damper can advantageously continue to be used in the vehicle.
  • Another aspect of the invention relates to a chassis comprising a suspension link and a vehicle body which are mutually connected by a previously written electric damper.
  • the stator is connected with its housing with the suspension arm, wherein the rotor shaft, which preferably protrudes on both sides of the stator, is firmly connected on both sides with a vehicle body.
  • the stator housing this can be ideally adapted to the shape of the handlebar eye, whereby the handlebar movement leads to a relative movement between the stator and the rotor shaft. As a result, movement of the suspension link relative to the vehicle body is effectively damped.
  • Fig. 1 is a schematic view of an electrical
  • FIG. 2 shows a schematic view in a sectional view
  • Fig. 3 is a plan view of a coil disc
  • FIG 4 shows an arrangement of a generator according to the invention in a vehicle.
  • FIG. 1 shows a schematic representation of an electric damper 10 having a housing 12 and a rotor 20, which has a rotor shaft 22 and a rotor disk 24.
  • the rotor 20 is rotatably mounted in the housing 12.
  • a first coil ring 14, a second coil ring 16 and a third coil ring 18 are arranged on the housing 12.
  • the coil rings 14, 16, 18 are concentric with the rotor shaft 22 and have different radii.
  • the coil rings 14, 16, 18 are designed such that in a ring segmental coil windings 14a, 14b, 14c, 14d are introduced.
  • the magnet rings 26, 28 are designed in such a way that circumferential segment-wise permanent magnets 26a, 26b, 26c, 26d are arranged whose north-south orientation is orthogonal to the rotor shaft 22, 52.
  • the magnets are arranged circumferentially with alternating polarity. This will be described in more detail in FIG.
  • the rotation of the rotor shaft 22, 52 with respect to the housing 12 and the coil rings 14, 16, 18 attached thereto induces stress in the coil rings 14, 16, 18, thereby braking the rotor 20 and thereby damping the connected components by a Magnetic ring 26, 28 is guided between two coil rings, a high attenuation can be provided with low use of magnets.
  • Fig. 2 shows a schematic view in one
  • this embodiment are arranged in the inner coil ring 14 with 4 coils 14a, 14b, 14c, 14d wherein the individual coils shown here symbolically are.
  • the coils of the coil ring 14, 16, 18 are connected to the housing 12.
  • the permanent magnets 26a, 26b, 26c, 26d are rotatably mounted on the rotor disk 24.
  • the permanent magnets 26a, 26b, 26c, 26d are arranged in the magnet ring 26 such that their magnetic orientation in the radial direction is orthogonal to the rotor shaft 22, and that their polarity alternates in successive segments.
  • FIG. 3 shows the plan view of a coil disk 18 in which segment-wise coils 30 are arranged circumferentially. In these coils 30, a voltage is induced during rotation of the rotor relative to the stator.
  • the segment size for the arrangement of the coils corresponds to that of the permanent magnets.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • Electromagnetism (AREA)
  • Acoustics & Sound (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Power Engineering (AREA)
  • Vehicle Body Suspensions (AREA)

Abstract

The invention relates to an electric damper for a motor vehicle for damping a relative movement between two components, said electric damper comprising an electric generator for generating an induction voltage, the generator being drivable by the relative movement and having a rotor and a stator. The electric damper is provided with a field-generating ring in which field-generating means of alternating polarity are arranged in segments. The rotor comprises a rotor shaft that is rotationally coupled to at least one rotor disk. The invention is characterized in that at least two coil rings with coil windings that are arranged in segments are provided, the coil rings and the field-producing ring being concentrically arranged, and the radius of the field-producing ring lying between the radii of the coil rings. A relative movement between the rotor and the stator results in a relative movement between the field-generating ring and the coil rings.

Description

Elektrischer Dämpfer für ein Kraft ahrzeug  Electric shock absorber for a power tool
Die Erfindung betrifft einen elektrischen Dämpfer für ein Kraftfahrzeug zur Dämpfung einer Relativbewegung zwischen zwei Bauteilen gemäß dem Oberbegriff des An¬ spruchs 1. Die DE 10 2010 035 084 AI beschreibt einen elektrischen Dämpfer für ein Kraftfahrzeug der eine Relativbewegung zwischen zwei Bauteilen dämpft. Der elektrische Dämpfer weist ein Gehäuse auf, wobei ein Stator in diesem Gehäuse festgelegt ist. Relativ zum Stator ist drehbar ein Rotor angeordnet, der Feldmagnete oder Induktionswicklungen aufweist. Durch die Drehung des Rotors gegenüber dem Stator wird in den Induktionswicklungen eine Spannung induziert, die den Rotor abbremst und dadurch dämpft. Die in der DE 10 2010 035 084 AI vorge- schlagene Lösung hat den Nachteil, dass zur Generierung einer ausreichenden Dämpfungskraft eine hohe Relativgeschwindigkeit zwischen Rotor und Stator notwendig ist. The invention relates to an electric damper for a motor vehicle for damping a relative movement between two components according to the preamble of An ¬ claim 1. The DE 10 2010 035 084 AI describes an electric damper for a motor vehicle which damps a relative movement between two components. The electric damper has a housing, wherein a stator is fixed in this housing. Relative to the stator, a rotor is rotatably arranged, which has field magnets or induction windings. The rotation of the rotor relative to the stator induces a voltage in the induction windings which decelerates and thereby damps the rotor. The solution proposed in DE 10 2010 035 084 A1 has the disadvantage that a high relative speed between rotor and stator is necessary to generate a sufficient damping force.
Dieses Problem wird in der Druckschrift dadurch gelöst, dass ein Getriebe zwischen dem angelenkten Bauteil und dem Generator vorgesehen ist. Durch die Verwendung eines Getriebes kann jedoch nur begrenzt die Drehzahl bzw. die Relativgeschwindigkeit der Rotordrehung erhöht werden . Es ist Aufgabe der Erfindung, einen elektrischen Dämpfer für ein Kraftfahrzeug anzugeben, der eine ausreichende Dämpfung auch bei niedrigen Anregungsamplituden und einer niedrigen Dämpfergeschwindigkeit realisieren kann . This problem is solved in the document by providing a transmission between the articulated component and the generator. By use However, a limited transmission, the speed or the relative speed of the rotor rotation can be increased. It is an object of the invention to provide an electric damper for a motor vehicle, which can realize a sufficient damping even at low excitation amplitudes and a low damper speed.
Die Aufgabe wird dadurch gelöst, dass der Stator wenigstens zwei Spulenringe aufweist, auf welchen segmentweise Spulenwicklungen angeordnet sind. Ferner weist der Generator einen Rotor auf, der eine Rotorwelle umfasst, die mit wenigstens einer Rotorscheibe drehfest verbunden ist. Auf dieser Rotorscheibe sind Felderzeugungsmittel umlaufend ringförmig segmentweise in abwechselnder magnetischer Polarität angeord- net . Die Nord-Süd Ausrichtung der Felderzeugungsmittel liegt im Wesentlichen orthogonal zur Rotorwelle. The object is achieved in that the stator has at least two coil rings, on which segmental coil windings are arranged. Furthermore, the generator has a rotor which comprises a rotor shaft which is connected in a rotationally fixed manner to at least one rotor disk. On this rotor disk, field-generating means are arranged circumferentially annularly in segments of alternating magnetic polarity. The north-south orientation of the field-generating means is substantially orthogonal to the rotor shaft.
Ferner sind wenigstens zwei Spulenringe vorgesehen, die konzentrisch zu den ringförmig angeordneten Felderzeu- gungsmitteln angeordnet sind. Der Radius Felderzeugungsmittelrings liegt zwischen den Spulenkreisradien der beiden Spulenringe. Furthermore, at least two coil rings are provided, which are arranged concentrically to the annularly arranged field generating means. The radius field generating center ring is between the coil circle radii of the two coil rings.
Auf diese Weise ragt der Felderzeugungsmittelring in axialer Richtung zwischen die beiden Spulenringe hinein . Durch diese Anordnung wird bei Drehung der Rotorscheib in beide benachbarten Spulenringe eine Spannung indu¬ ziert, durch welche wiederum ein Magnetfeld erzeugt wird, welches der Drehung des Rotors entgegenwirkt und damit dies seine Bewegung dämpft. Aufgrund der gleichzeitigen Induktion in zwei Spulenringe wird die wirksa me Feldänderung im Vergleich zum Stand der Technik deutlich erhöht. In this way, the field generating middle ring protrudes in the axial direction between the two coil rings. By this arrangement, a voltage by which in turn generates a magnetic field which opposes the rotation of the rotor and thus it attenuates its movement upon rotation of the rotor Scheib indu ¬ sheet in both adjacent coil rings. Due to the simultaneous induction in two coil rings the effective me field change is significantly increased compared to the prior art.
Ferner können die Felderzeugungsmittel auf wenigstens zwei konzentrischen Kreisumfängen an der Rotorscheibe angebracht sein. Sie sind dabei so angeordnet, dass in radialer Richtung gegenüberliegende Felderzeugungsmittel eine unterschiedliche Polarität aufweisen. Further, the field generating means may be mounted on at least two concentric circumferences on the rotor disk. They are arranged so that in the radial direction opposite field generating means have a different polarity.
Vorzugsweise liegen die Felderzeugungsmittelringradien in radialer Richtung zwischen den Spulenringradien . Preferably, the field generating agent ring radii are in the radial direction between the coil ring radii.
In einer weiteren vorteilhaften Ausgestaltung der Erfindung sind wenigstens zwei Felderzeugungsmittelring vorgesehen, welche zwischen drei Spulenringen angeord net sind. In a further advantageous embodiment of the invention, at least two field generating middle ring are provided, which are net angeord between three coil rings.
Bei Drehung der Spulenringe relativ zu den Felderzeugungsmittelringen wirkt das von den beiden benachbarten Felderzeugungsmittelringen erzeugte magnetische Feld auf den zwischenliegenden Spulenring in gleicher Richtung und wirkt auf diese Weise als Reihenschaltung. Dadurch wird die Dämpfungseigenschaft bei kompakterUpon rotation of the coil rings relative to the Feldzeugungsmittelringen the magnetic field generated by the two adjacent Feldzeugungsmittelringen acts on the intermediate coil ring in the same direction and acts in this way as a series circuit. As a result, the damping property becomes more compact
Bauform deutlich erhöht. In einer weiteren vorteilhaften Ausführungsform sind die Felderzeugungsmittel als Permanentmagnete ausgebildet. In einer weiteren vorteilhaften Ausführung der Erfindung sind die Erregerwicklungen der Spulenringe mit einem Widerstand verbunden. Über diesen Widerstand kann eine Dämpfung festgelegt werden. Über einen variablen Widerstand ist diese Dämpfung auf einfache Weise einstellbar. Die von dem Dämpfer gewonnene Energie kann vorteilhafter Weise im Fahrzeug weiter verwendet werden . Design significantly increased. In a further advantageous embodiment, the field-generating means are designed as permanent magnets. In a further advantageous embodiment of the invention, the excitation windings of the coil rings are connected to a resistor. About this resistance, a damping can be set. About a variable resistor, this damping is easily adjustable. The energy gained from the damper can advantageously continue to be used in the vehicle.
Ein weiterer Gedanke der Erfindung betrifft ein Fahrwerk umfassend einen Fahrwerkslenker und einen Fahrzeugaufbau die gegeneinander durch einen zuvor geschriebenen elektrischen Dämpfer miteinander verbunden sind . Another aspect of the invention relates to a chassis comprising a suspension link and a vehicle body which are mutually connected by a previously written electric damper.
Gemäß einer vorteilhaften Ausführungsform ist dabei der Stator mit seinem Gehäuse mit dem Fahrwerkslenker verbunden, wobei die Rotorwelle, welche vorzugsweise auf beiden Seiten des Stators herausragt, beidseitig fest mit einem Fahrzeugaufbau verbunden ist. Durch die Wahl des Statorgehäuse kann dieses in idealer Weise an die Form des Lenkerauges angepasst werden, wodurch die Lenkerbewegung zu einer Relativbewegung zwischen Stator und Rotorwelle führt. Dadurch wird eine Bewegung des Fahrwerklenkers gegenüber dem Fahrzeugaufbau effektiv gedämpft . According to an advantageous embodiment, the stator is connected with its housing with the suspension arm, wherein the rotor shaft, which preferably protrudes on both sides of the stator, is firmly connected on both sides with a vehicle body. By choosing the stator housing this can be ideally adapted to the shape of the handlebar eye, whereby the handlebar movement leads to a relative movement between the stator and the rotor shaft. As a result, movement of the suspension link relative to the vehicle body is effectively damped.
Weitere Vorteile, Merkmale und Anwendungsmöglichkeiten der vorliegenden Erfindung ergeben sich aus der nachfolgenden Beschreibung in Verbindung mit den in den Zeichnungen dargestellten Ausführungsbeispielen. In der Beschreibung, in den Ansprüchen und in der Further advantages, features and possible applications of the present invention will become apparent from the following description in conjunction with the embodiments illustrated in the drawings. In the description, in the claims and in the
Zeichnung werden die in der unten aufgeführten Liste der Bezugzeichen verwendeten Begriffe und zugeordneten Bezugzeichen verwendet. In der Zeichnung bedeutet: Drawing uses the terms and associated reference numerals used in the list of reference numerals below. In the drawing:
Fig. 1 eine schematische Ansicht eines elektrischen Fig. 1 is a schematic view of an electrical
Dämpfers ;  Dampers;
Fig. 2 eine schematische Ansicht in einer Schnittan- sieht; FIG. 2 shows a schematic view in a sectional view; FIG.
Fig. 3 eine Draufsicht auf eine Spulenscheibe, und Fig. 3 is a plan view of a coil disc, and
Fig. 4 eine Anordnung eines erfindungsgemäßen Gene- rators in einem Fahrzeug. 4 shows an arrangement of a generator according to the invention in a vehicle.
Fig. 1 zeigt eine schematische Darstellung eines elektrischen Dämpfers 10 mit einem Gehäuse 12 und einem Rotor 20, der eine Rotorwelle 22 und eine Rotorscheibe 24 aufweist. Der Rotor 20 ist drehbar im Gehäuse 12 gelagert. Am Gehäuse 12 sind ein erster Spulenring 14, ein zweiter Spulenring 16 und ein dritter Spulenring 18 angeordnet. Die Spulenringe 14, 16, 18 liegen konzentrisch zur Rotorwelle 22 und weisen unterschiedliche Ra- dien auf. Die Spulenringe 14, 16, 18 sind derart ausgestaltet, dass in einem Ring segmentweise Spulenwicklungen 14a, 14b, 14c, 14d eingebracht sind. 1 shows a schematic representation of an electric damper 10 having a housing 12 and a rotor 20, which has a rotor shaft 22 and a rotor disk 24. The rotor 20 is rotatably mounted in the housing 12. On the housing 12, a first coil ring 14, a second coil ring 16 and a third coil ring 18 are arranged. The coil rings 14, 16, 18 are concentric with the rotor shaft 22 and have different radii. The coil rings 14, 16, 18 are designed such that in a ring segmental coil windings 14a, 14b, 14c, 14d are introduced.
Zudem weist der elektrische Dämpfer 10 Magnetringe 26, 28 auf. Die Magnetringe 26, 28 sind derart gestaltet, dass umlaufend segmentweise Permanentmagnete 26a, 26b, 26c, 26d angeordnet sind, deren Nord-Südausrichtung orthogonal zur Rotorwelle 22, 52 liegt. Die Magnete sind umlaufend mit abwechselnder Polarität angeordnet. Dies wird in Fig. 2 näher beschrieben. Durch die Drehung der Rotorwelle 22, 52 gegenüber dem Gehäuse 12 und der daran befestigten Spulenringe 14, 16, 18 wird Span- nung in die Spulenringe 14, 16, 18 induziert wodurch der Rotor 20 gebremst und dadurch die angeschlossenen Bauteile gedämpft werden, indem ein Magnetring 26, 28 zwischen zwei Spulenringen geführt wird kann eine hohe Dämpfung bei niedrigem Magneteneinsatz bereit gestellt werden. In addition, the electric damper 10 magnetic rings 26, 28 on. The magnet rings 26, 28 are designed in such a way that circumferential segment-wise permanent magnets 26a, 26b, 26c, 26d are arranged whose north-south orientation is orthogonal to the rotor shaft 22, 52. The magnets are arranged circumferentially with alternating polarity. This will be described in more detail in FIG. The rotation of the rotor shaft 22, 52 with respect to the housing 12 and the coil rings 14, 16, 18 attached thereto induces stress in the coil rings 14, 16, 18, thereby braking the rotor 20 and thereby damping the connected components by a Magnetic ring 26, 28 is guided between two coil rings, a high attenuation can be provided with low use of magnets.
Fig. 2 zeigt eine schematische Ansicht in einer Fig. 2 shows a schematic view in one
Schnittansicht . Gut zu erkennen ist die konzentrische Anordnung der Spulenringe 14, 16, 18 und Magnetringe 26, 28 um die Rotorwelle 22. In diesem Ausführungsbeispiel sind im inneren Spulenring 14 mit 4 Spulen 14a, 14b, 14c, 14d angeordnete wobei die einzelnen Spulen hier symbolisch dargestellt sind. Wie in Fig. 1 zu erkennen ist, sind die Spulen des Spulenrings 14, 16, 18 mit dem Gehäuse 12 verbunden. Dazu drehbar gelagert sind die Permanentmagnete 26a, 26b, 26c, 26d an der Rotorscheibe 24 angebracht. Die Permanentmagnete 26a, 26b, 26c, 26d sind im Magnetring 26 derart angeordnet, dass ihre magnetische Ausrichtung in radialer Richtung orthogonal zur Rotorwelle 22 liegt, und dass deren Polarität in aufeinander folgenden Segmenten abwechselt. Das für den Spulenring 14 und den Magnetring 26 gesagte trifft auch auf die weiter außen liegenden Spulenringe 16, 18 und den Magnetring 28 zu. Durch die Erfindungsgemäße Anordnung können durch Einsatz von wenigen Permanentmagneten hohe Dämpfungswerte erzielt werden. Dadurch wird eine güns- tige Herstellung von elektrischen Dämpfern gewährleistet . Sectional view. Good to see is the concentric arrangement of the coil rings 14, 16, 18 and magnetic rings 26, 28 about the rotor shaft 22. In this embodiment are arranged in the inner coil ring 14 with 4 coils 14a, 14b, 14c, 14d wherein the individual coils shown here symbolically are. As can be seen in Fig. 1, the coils of the coil ring 14, 16, 18 are connected to the housing 12. For this purpose, the permanent magnets 26a, 26b, 26c, 26d are rotatably mounted on the rotor disk 24. The permanent magnets 26a, 26b, 26c, 26d are arranged in the magnet ring 26 such that their magnetic orientation in the radial direction is orthogonal to the rotor shaft 22, and that their polarity alternates in successive segments. The comments made for the coil ring 14 and the magnetic ring 26 also applies to the coil rings 16, 18 located further outward and the magnet ring 28. By the arrangement according to the invention high damping values can be achieved by using a few permanent magnets. This will result in a favorable tiger production of electric dampers guaranteed.
Fig. 3 zeigt die Draufsicht auf eine Spulenscheibe 18 bei der segmentweise Spulen 30 umlaufend angeordnet sind. In diese Spulen 30 wird bei Drehung des Rotors relativ zum Stator eine Spannung induziert. Die Segmentgröße zur Anordnung der Spulen entspricht der der Permanentmagnete . FIG. 3 shows the plan view of a coil disk 18 in which segment-wise coils 30 are arranged circumferentially. In these coils 30, a voltage is induced during rotation of the rotor relative to the stator. The segment size for the arrangement of the coils corresponds to that of the permanent magnets.
B e z u g s z e i c h e n l i s t e C o m p a n c e m e n t i o n s
10 elektrischer Dämpfer 10 electric dampers
12 Gehäuse  12 housing
14 Spulenring  14 coil ring
14a Spulenwicklung  14a coil winding
14b Spulenwicklung  14b coil winding
14c Spulenwicklung  14c coil winding
14d Spulenwicklung  14d coil winding
16 Spulenring  16 coil ring
18 Spulenring  18 coil ring
20 Rotor  20 rotor
22 Rotorwelle  22 rotor shaft
24 Rotorscheibe  24 rotor disk
26 Magnetring  26 magnet ring
26a Permanentmagnet  26a permanent magnet
26b Permanentmagnet  26b permanent magnet
26c Permanentmagnet  26c permanent magnet
26d Permanentmagnet  26d permanent magnet
28 Magnetring  28 magnet ring
30 Spule  30 coil
50 Generator  50 generator
52 Rotorwelle  52 rotor shaft
54 Fahrzeugaufbau  54 Vehicle body
56 Kupplungselement  56 coupling element
58 Stator  58 stator

Claims

P a t e n t a n s p r ü c h e  P a n t a n s p r e c h e
Elektrischer Dämpfer (10) für ein Kraftfahrzeug zur Dämpfung einer Relativbewegung zwischen zwei Bauteilen mit einem durch die Relativbewegung antreibbaren elektrischen Generator (50) zur Erzeugung einer Induktionsspannung, wobei der Generator (50) einen Rotor (20) und einen Stator (58) aufweist, und ein Felderzeugungsmittelring vorgesehen ist, in welchem segmentweise Felderzeugungsmittel abwechselnder Polarität angeordnet sind, wobei der Rotor (20) eine Rotorwelle (22, 52) aufweist, die mit wenigstens einer Rotorschiebe (24) drehfest verbunden ist, dadurch gekennzeichnet, dass wenigstens zwei Spulenringe (14, 16, 18) mit segmentweise angeordneten Spulenwicklungen (14a, 14b, 14c, 14d) vorgesehen sind, wobei die Spulenringe (14, 16, 18) und der Felderzeugungsmittelring konzentrisch angeordnet sind, und ferner der Radius des Felderzeugungsmittelrings zwischen den Spulenringradien liegt, und eine Relativbewegung zwischen Rotor (20) und Stator (58) eine Relativbewegung zwischen Felderzeugungsmittelring und den Spulenringen (14, 16, 18) zur Folge hat. Elektrischer Dämpfer (10) nach Anspruch 1, dadurch gekennzeichnet:, dass die Rotorscheibe (24) den Felderzeugungsmittelring trägt. Electric damper (10) for a motor vehicle for damping a relative movement between two components with an electric generator (50) drivable by the relative movement for generating an induction voltage, the generator (50) having a rotor (20) and a stator (58), and a field generating means ring is provided in which segmented field generating means of alternating polarity are arranged, wherein the rotor (20) has a rotor shaft (22, 52) which is non-rotatably connected to at least one rotor slide (24), characterized in that at least two coil rings ( 14, 16, 18) are provided with segmented coil windings (14a, 14b, 14c, 14d), the coil rings (14, 16, 18) and the field generating center ring being concentric, and further the radius of the field generating center ring being between the coil ring radii, and a relative movement between the rotor (20) and the stator (58) a relative movement between Felderz eugungsmittelring and the coil rings (14, 16, 18) result. An electric damper (10) according to claim 1, characterized in that the rotor disk (24) carries the field generating middle ring.
Elektrischer Dämpfer (10) nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass wenigstens zwei Rotorscheiben (24) vorgesehen sind, die drehfest mit der Rotorwelle (22, 52) verbunden sind, wobei die Felderzeugungsmittel derart angeordnet sind, dass ein Felderzeugungsmittel einer ersten Rotorscheibe (24) eine unterschiedliche Polarität zu einem diesem in axialer Richtung gegenüberliegenden und auf einer zweiten Rotorscheibe (24) angeordneten Felderzeugungsmittel hat. Electric damper (10) according to claim 1 or 2, characterized in that at least two rotor discs (24) are provided which are non-rotatably connected to the rotor shaft (22, 52), wherein the field generating means are arranged such that a field generating means of a first rotor disk (24) has a different polarity to a field generating means arranged opposite this in the axial direction and arranged on a second rotor disk (24).
Elektrischer Dämpfer (10) nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass die Felderzeugungsmittel als Permanentmagnete (26a, 26b, 26c, 26d, 27a, 27b, 27c, 27d) ausge¬ bildet sind. Electrical damper (10) according to any one of the preceding claims, characterized in that the field generating means as permanent magnets (26a, 26b, 26c, 26d, 27a, 27b, 27c, 27d) are oriented ¬ forms.
Elektrischer Dämpfer (10) nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass die Anschlüsse der Erregerwicklungen der Spulenscheibe an einen Widerstand angeschlossen sind. Electric damper (10) according to one of the preceding claims, characterized in that the terminals of the exciter windings of the coil disc are connected to a resistor.
Fahrwerk umfassend einen Fahrwerkslenker einen Fahrzeugaufbau (54) und einen elektrischen Dämpfer (10) nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass der Stator (58) mit einem Fahrwerkslenker und die Rotorwelle (22, 52) mit einem Fahrzeugaufbau (54) verbunden ist. Chassis comprising a chassis link a vehicle body (54) and an electric damper (10) according to any one of the preceding claims, characterized in that the stator (58) with a suspension arm and the rotor shaft (22, 52) with a vehicle body (54) is connected ,
PCT/EP2013/002833 2012-10-18 2013-09-20 Electric damper for a motor vehicle WO2014060061A1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019119705A1 (en) * 2017-12-21 2019-06-27 东南大学 Eddy current three-dimensional damping device

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JPH11136915A (en) * 1997-10-31 1999-05-21 Mitsuhiro Fukada Permanent magnet type power generator
JP4585575B2 (en) * 2008-03-04 2010-11-24 本田技研工業株式会社 Electric damper device
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DE4116160A1 (en) * 1991-05-17 1992-11-19 Voith Gmbh J M EM retarder acting as eddy-current brake - uses permanent magnet rotor and claw-shaped stator with cooling passages
WO2011133044A1 (en) * 2010-04-23 2011-10-27 Salte Tekniske As Device for damping of pendular movements and method of using same
DE102010035084A1 (en) * 2010-08-21 2012-02-23 Audi Ag Electric damper for a motor vehicle

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019119705A1 (en) * 2017-12-21 2019-06-27 东南大学 Eddy current three-dimensional damping device

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