WO2005111354A1 - Method for the automatic actuation of a motor vehicle door - Google Patents

Method for the automatic actuation of a motor vehicle door Download PDF

Info

Publication number
WO2005111354A1
WO2005111354A1 PCT/EP2005/052083 EP2005052083W WO2005111354A1 WO 2005111354 A1 WO2005111354 A1 WO 2005111354A1 EP 2005052083 W EP2005052083 W EP 2005052083W WO 2005111354 A1 WO2005111354 A1 WO 2005111354A1
Authority
WO
WIPO (PCT)
Prior art keywords
vehicle door
drive
coil
end position
friction clutch
Prior art date
Application number
PCT/EP2005/052083
Other languages
German (de)
French (fr)
Inventor
Stephan Schachtl
Holger Zang
Original Assignee
Valeo Sicherheitssysteme 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 Valeo Sicherheitssysteme Gmbh filed Critical Valeo Sicherheitssysteme Gmbh
Publication of WO2005111354A1 publication Critical patent/WO2005111354A1/en

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F15/00—Power-operated mechanisms for wings
    • E05F15/60—Power-operated mechanisms for wings using electrical actuators
    • E05F15/603—Power-operated mechanisms for wings using electrical actuators using rotary electromotors
    • E05F15/611—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for swinging wings
    • E05F15/614—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for swinging wings operated by meshing gear wheels, one of which being mounted at the wing pivot axis; operated by a motor acting directly on the wing pivot axis
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F15/00—Power-operated mechanisms for wings
    • E05F15/60—Power-operated mechanisms for wings using electrical actuators
    • E05F15/603—Power-operated mechanisms for wings using electrical actuators using rotary electromotors
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F15/00—Power-operated mechanisms for wings
    • E05F15/70—Power-operated mechanisms for wings with automatic actuation
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05Y2201/00—Constructional elements; Accessories therefore
    • E05Y2201/20—Brakes; Disengaging means, e.g. clutches; Holders, e.g. locks; Stops; Accessories therefore
    • E05Y2201/214—Disengaging means
    • E05Y2201/216—Clutches
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05Y2201/00—Constructional elements; Accessories therefore
    • E05Y2201/40—Motors; Magnets; Springs; Weights; Accessories therefore
    • E05Y2201/46—Magnets
    • E05Y2201/462—Electromagnets
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05Y2900/00—Application of doors, windows, wings or fittings thereof
    • E05Y2900/50—Application of doors, windows, wings or fittings thereof for vehicles
    • E05Y2900/53—Application of doors, windows, wings or fittings thereof for vehicles characterised by the type of wing
    • E05Y2900/546—Tailgates

Definitions

  • the invention relates to a method for automatically actuating a motor vehicle door, in particular the tailgate of a motor vehicle, from a first to a second end position by means of a drive which comprises an electromagnetic friction clutch which can be actuated by a control device and has an energizable coil.
  • each pivotable part of a vehicle is summarized for closing an opening.
  • the vehicle door can therefore be a side or rear door as well as a tailgate (trunk lid), a bonnet, a roof flap or the like.
  • the tailgate for opening and closing is partially pivoted with full power of the drive into its end positions defined by end stops and the drive is then switched off.
  • the invention has for its object to provide a method by means of which the automatically actuable vehicle door of a motor vehicle is safely pivoted into the desired end position even at extreme temperatures below 0 ° C without excessive stress on the drive units and door hinges.
  • the invention is essentially based on the idea of reducing the excitation current flowing through the coil for actuating the friction clutch as soon as the vehicle door reaches a predetermined switch position lying in front of the respective end position of the vehicle door, so that the vehicle door subsequently moves from it Drive is moved into its end position with a reduced torque transmitted by the friction clutch.
  • the time course of the excitation current through the coil is chosen such that the torque transmitted by the friction clutch is gradually reduced from a maximum value to a predetermined final value. This can take place, for example, through a defined, predetermined ramp-shaped course of the excitation current.
  • a clutch is used as a controllable electromagnetic friction clutch, which comprises an additional elastic element or a permanent magnet, which (r) causes the friction clutch even when the coil is not energized transmits reduced torque, which is selected such that the vehicle door stops in the respective position after the drive is switched off, but manual actuation of the vehicle door is possible.
  • the control device can completely switch off the excitation current flowing through the coil of the friction clutch as soon as the vehicle door reaches the switch position lying in front of the corresponding end position , The vehicle door is then automatically pivoted into its end position by the drive with a reduced torque transmitted by the friction clutch.
  • Fig.l is a schematic view of the rear area of a motor vehicle with opening tailgate and
  • FIG. 2 shows the block diagram of a device for carrying out the method according to the invention.
  • Fig.l 1 denotes a motor vehicle which comprises a tailgate 2.
  • the tailgate 2 can be pivoted from a closed position I into an open end position III (and vice versa) by means of an electromechanical drive 4 acting on the hinge axis 3 of the tailgate 2.
  • the opening process of the tailgate 2 is also supported in a manner known per se by two gas springs 5 arranged laterally on the tailgate 2.
  • the drive 4 comprises an electric motor 6 (optionally with an integrated gear arranged on the output side), which acts on the hinge axis 3 via an electromagnetically actuated friction clutch 7 and a downstream transmission gear 8.
  • Electric motor 6 and friction clutch 7 can be actuated by means of an electronic control device 9, which is also connected to a position sensor 10 which detects the position of the tailgate 2.
  • the friction clutch 7 advantageously has the structure known from DE 102 25 580 AI. It comprises a provided with a friction lining 11 and rotatably connected to a drive shaft 12 rotor part 13 on which on its side facing away from the friction lining 11 an electric coil 14 is arranged, and a rotatably but axially displaceably connected to an output shaft 15 armature disk 16.
  • a permanent magnet 17 is also arranged on the rotor part 13, so that when the coil 14 is not energized, the armature disk 16 is pressed against the friction lining 11 of the rotor part 13 with a force which is large enough for the tailgate 2 in the respective when the friction is switched off -Coupling 7 assumes the position it occupies and the frictional engagement between the armature disk 16 and the friction lining 11 can be overcome with a subsequent manual actuation of the tailgate 2.
  • the tailgate 2 may initially be in its closed position I.
  • the vehicle owner actuates e.g. an appropriate remote control. This acts on the control device 9 via a receiving device (not shown), which then both activates the electric motor 6 and, by energizing the coil 14, causes a maximum transmission of the torque from the drive shaft 12 to the output shaft 15. The tailgate 2 is then opened automatically.
  • the electronic control device 9 detects with the help of the position sensor 10, that the tailgate 2 reaches a predefined position (switch position) which is immediately before the open end position of the tailgate 2, it switches off the excitation current of the coil 14.
  • the friction clutch 7 only transmits a reduced torque caused by the permanent magnet 17 from the drive shaft 12 to the output shaft 15, so that the tailgate 2 is pivoted relatively slowly into the open end position by the continuing electric motor 6 and the gas springs 5. After reaching this position, the electric motor 6 is then switched off by the control device 9.
  • tailgate 2 is to be closed again, the tailgate 2 is closed in a manner corresponding to the opening procedure.
  • the invention is in no way limited to the exemplary embodiment described above. So it can be advantageous not to completely switch off the excitation current of the coil of the friction clutch when the switching position is reached, but to reduce it only gradually, in order to avoid jerky movements of the drive parts or the tailgate caused by a sudden reduction in the torque to be transmitted become.
  • the position sensor need not necessarily be a sensor separate from the drive. Rather, the position sensor can also be integrated in the drive and e.g. To determine the position of the tailgate, evaluate the rotation of the output shaft instead of its swivel angle.
  • the drive does not necessarily have to be connected to the hinge axis of the tailgate, but it can also act, for example, on a hinge bracket connected to the tailgate.

Abstract

The invention relates to a method for the automatic actuation of a motor vehicle door (2), in particular the hatchback of a motor vehicle (1), from a first end position to a second end position (I, III) by means of a drive (4), which comprises an electromagnetic friction gear (7) that can be actuated by a control unit (9) and is equipped with a coil (14) that can be traversed by a current. The aim of the invention is to ensure that the vehicle door can be pivoted into the respective desired position, even in extreme temperatures of below 0 °C, without exerting undue stress on the drive units and the door hinges. To achieve this, the excitation current that flows through the coil (14) in order to actuate the friction gear (7) is reduced as soon as the vehicle door (2) has reached a predetermined switching position (II) before the respective end position (I, III) of said door (2), in such a way that the vehicle door (2) is subsequently displaced into its respective end position (I, III) by the drive (4) with the aid of a reduced angular momentum that is transmitted by the friction gear (7).

Description

Beschreibung Verfahren zum automatischen Betätigen einer Kraftfahrzeugtür Description Method for automatically operating a motor vehicle door
[001] Die Erfindung betrifft ein Verfahren zum automatischen Betätigen einer Kraftfahrzeugtür, insbesondere der Heckklappe eines Kraftfahrzeuges, von einer ersten in eine zweite Endstellung mittels eines Antriebes, der eine durch eine Steuereinrichtung betätigbare elektromagnetische Reib-Kupplung mit einer bestrombaren Spule umfaßt.The invention relates to a method for automatically actuating a motor vehicle door, in particular the tailgate of a motor vehicle, from a first to a second end position by means of a drive which comprises an electromagnetic friction clutch which can be actuated by a control device and has an energizable coil.
[002] Als Fahrzeugtür im Sinne dieser Erfindung wird zusammenfassend jedes verschwenkbare Teil eines Fahrzeuges zum Verschließen einer Öffnung bezeichnet. Es kann sich bei der Fahrzeugtür daher sowohl um eine Seiten- oder Hecktür als auch um eine Heckklappe (Kofferraumdeckel), eine Motorhaube, eine Dachklappe oder dgl. handeln.As a vehicle door in the sense of this invention, each pivotable part of a vehicle is summarized for closing an opening. The vehicle door can therefore be a side or rear door as well as a tailgate (trunk lid), a bonnet, a roof flap or the like.
[003] Bei automatisch betätigbaren Heckklappen von Kraftfahrzeugen wird die Heckklappe zum Öffnen und Schließen zum Teil mit voller Leistung des Antriebes in ihre durch Endanschläge definierte Endstellungen geschwenkt und der Antrieb erst dann abgeschaltet.In automatically operated tailgates of motor vehicles, the tailgate for opening and closing is partially pivoted with full power of the drive into its end positions defined by end stops and the drive is then switched off.
[004] Als nachteilig hat es sich hierbei erwiesen, daß die Antriebseinheiten relativ stark beansprucht werden, weil immer dieselben Verzahnungsbereiche des Antriebes die relativ hohen Anschlagskräfte abbauen müssen. Diese sogenannte Blockzahnbildung reduziert die Lebensdauer eines solchen Antriebes und macht zum Teil die Verwendung anderer Materialien notwendig. Außerdem werden durch den harten Endanschlag die Heckklappenscharniere außerordentlich stark beansprucht und Anschlagsgeräusche verursacht.It has been found to be disadvantageous here that the drive units are stressed relatively heavily because the same toothed areas of the drive always have to reduce the relatively high stop forces. This so-called block tooth formation reduces the lifespan of such a drive and in some cases makes it necessary to use other materials. In addition, the tailgate hinges are extremely stressed by the hard end stop and stop noises are caused.
[005] Es ist daher bereits vorgeschlagen worden, bei automatisch betätigbaren Heckklappen von Kraftfahrzeugen die Heckklappe nicht vollständig mittels des entsprechenden Antriebes zu öffnen, sondern die Kupplung des Antriebes kurz (d.h. z.B. 3 bis 15°) vor Erreichen des oberen Endanschlages auszukuppeln und die Heckklappe anschließend mit Hilfe einer Gasfeder bis zum Erreichen der Endstellung zu verschwenken.It has therefore already been proposed not to open the tailgate completely by means of the corresponding drive in the case of automatically operated tailgates of motor vehicles, but to disengage the clutch of the drive shortly (ie 3 to 15 °) before reaching the upper end stop and then the tailgate with the help of a gas spring until the end position is reached.
[006] Als nachteilig hat es sich bei diesem Verfahren allerdings erwiesen, daß insbesondere bei extremer Kälte die dadurch reduzierten Rückstellkräfte der Gasfedern und eventuell auftretende Ablagerungen auf der Heckscheibe (z.B. Schnee) dazu führen, daß die Heckklappe nach Auskuppeln der Kupplung in ihre geschlossene Lage zurückfällt, was unter anderem zu Verletzungen von Personen führen kann, die sich im Heckklappenbereich aufhalten.A disadvantage of this method, however, has proven that, in particular in extreme cold, the reduced restoring forces of the gas springs and any deposits that may occur on the rear window (eg snow) result in the tailgate being disengaged into its closed position after the clutch has been disengaged falls back, which can lead to injuries to people who are in the tailgate area.
[007] Der Erfindung hegt die Aufgabe zugrunde, ein Verfahren anzugeben, mit dessen Hilfe die automatisch betätigbare Fahrzeugtür eines Kraftfahrzeuges auch bei extremen Temperaturen unterhalb 0°C sicher in die jeweils gewünschte Endstellung geschwenkt wird, ohne daß es zu einer übermäßigen Belastung der Antriebseinheiten und der Türscharniere kommt.The invention has for its object to provide a method by means of which the automatically actuable vehicle door of a motor vehicle is safely pivoted into the desired end position even at extreme temperatures below 0 ° C without excessive stress on the drive units and door hinges.
[008] Diese Aufgabe wird erfindungsgemäß durch die Merkmale des Anspruchs 1 gelöst. Weitere, besonders vorteilhafte Ausgestaltungen der Erfindung offenbaren die Unteransprüche.This object is achieved according to the invention by the features of claim 1. Further, particularly advantageous embodiments of the invention are disclosed in the subclaims.
[009] Die Erfindung beruht im wesentlichen auf dem Gedanken, den zur Betätigung der Reib-Kupplung durch die Spule fließenden Erregerstrom zu vermindern, sobald die Fahrzeugtür eine vorgegebene, vor der jeweiligen Endstellung der Fahrzeugtür liegende Schaltstellung erreicht, so daß die Fahrzeugtür anschließend von dem Antrieb mit einem von der Reib-Kupplung übertragenen verminderten Drehmoment in ihre Endstellung bewegt wird.The invention is essentially based on the idea of reducing the excitation current flowing through the coil for actuating the friction clutch as soon as the vehicle door reaches a predetermined switch position lying in front of the respective end position of the vehicle door, so that the vehicle door subsequently moves from it Drive is moved into its end position with a reduced torque transmitted by the friction clutch.
[010] Bei einer Ausführungsform der Erfindung wird der zeitliche Verlauf des Erregerstromes durch die Spule derart gewählt, daß das von der Reib-Kupplung übertragene Drehmoment kontinuierlich von einem Maximalwert bis zu einem vorgegebenen Endwert allmählich reduziert wird. Dieses kann beispielsweise durch einen definiert vorgegebenen rampenförmigen Verlauf des Erregerstromes erfolgen.In one embodiment of the invention, the time course of the excitation current through the coil is chosen such that the torque transmitted by the friction clutch is gradually reduced from a maximum value to a predetermined final value. This can take place, for example, through a defined, predetermined ramp-shaped course of the excitation current.
[011] Bei einer weiteren Ausführungsform der Erfindung wird als steuerbare elektromagnetische Reib-Kupplung eine Kupplung verwendet, die ein zusätzliches elastisches Element oder einen Permanentmagneten umfaßt, welches(r) bewirkt, daß die Reib- Kupplung auch in dem nicht bestromten Zustand der Spule ein vermindertes Drehmoment überträgt, das derart gewählt wird, daß die Fahrzeugtür nach Abschalten des Antriebes in der jeweiligen Position zwar stehen bleibt, aber eine manuelle Betätigung der Fahrzeugtur möglich ist.In a further embodiment of the invention, a clutch is used as a controllable electromagnetic friction clutch, which comprises an additional elastic element or a permanent magnet, which (r) causes the friction clutch even when the coil is not energized transmits reduced torque, which is selected such that the vehicle door stops in the respective position after the drive is switched off, but manual actuation of the vehicle door is possible.
[012] Bei Verwendung derartiger, beispielsweise aus der DE 101 52 697 AI und DE 102 25 580 AI bekannten Reibkupplungen kann die Steuereinrichtung den durch die Spule der Reib-Kupplung fließenden Erregerstrom vollständig abschalten, sobald die Fahrzeugtür die vor der entsprechenden Endstellung liegende Schaltstellung erreicht. Die Fahrzeugtür wird dann von dem Antrieb automatisch mit einem durch die Reib- Kupplung verminderten übertragenen Drehmoment in ihre Endstellung geschwenkt.When using such friction clutches, for example known from DE 101 52 697 AI and DE 102 25 580 AI, the control device can completely switch off the excitation current flowing through the coil of the friction clutch as soon as the vehicle door reaches the switch position lying in front of the corresponding end position , The vehicle door is then automatically pivoted into its end position by the drive with a reduced torque transmitted by the friction clutch.
[013] Es versteht sich von selbst, daß bei Fahrzeugtüren, deren Öffnungs- oder Schließbewegung durch mindestens ein elastisches Element (z.B. eine Gasfeder) unterstützt wird, der durch die Spule der Reib-Kupplung fließende Erregerstrom nach Erreichen der Schaltstellung so weit vermindert werden kann, daß die Fahrzeugtür von der Rückstellkraft des elastischen Elementes und dem Antrieb zusammen in die jeweilige Endstellung bewegt wird.It goes without saying that in vehicle doors whose opening or closing movement is supported by at least one elastic element (eg a gas spring), the excitation current flowing through the coil of the friction clutch can be reduced as far after reaching the switching position that the vehicle door is moved together by the restoring force of the elastic element and the drive in the respective end position.
[014] Weitere Einzelheiten und Vorteile der Erfindung ergeben sich aus den folgenden anhand von Figuren erläuterten Ausführungsbeispielen. Es zeigen:Further details and advantages of the invention result from the following exemplary embodiments explained with reference to figures. Show it:
[015] Fig.l eine schematische Ansicht des heckseitigen Bereiches eines Kraftfahrzeuges mit sich öffnender Heckklappe undFig.l is a schematic view of the rear area of a motor vehicle with opening tailgate and
[016] Fig.2 das Blockschaltbild einer Vorrichtung zur Durchführung des erfindungsgemäßen Verfahrens.2 shows the block diagram of a device for carrying out the method according to the invention.
[017] In Fig.l ist mit 1 ein Kraftfahrzeug bezeichnet, welches eine Heckklappe 2 umfaßt. Die Heckklappe 2 ist mittels eines auf die Scharnierachse 3 der Heckklappe 2 wirkenden elektromechanischen Antriebes 4 von einer geschlossenen Stellung I in eine geöffnete Endstellung III (und umgekehrt) schwenkbar.In Fig.l, 1 denotes a motor vehicle which comprises a tailgate 2. The tailgate 2 can be pivoted from a closed position I into an open end position III (and vice versa) by means of an electromechanical drive 4 acting on the hinge axis 3 of the tailgate 2.
[018] Der Öffnungsvorgang der Heckklappe 2 wird außerdem in an sich bekannter Weise durch zwei seitlich an der Heckklappe 2 angeordnete Gasfedern 5 unterstützt.The opening process of the tailgate 2 is also supported in a manner known per se by two gas springs 5 arranged laterally on the tailgate 2.
[019] Der Antrieb 4 umfaßt einen Elektromotor 6 (gegebenenfalls mit ausgangsseitig angeordnetem integrierten Getriebe), welcher über eine elektromagnetisch betätigbare Reib-Kupplung 7 und über ein nachgeschaltetes Übertragungsgetriebe 8 auf die Scharnierachse 3 wirkt.The drive 4 comprises an electric motor 6 (optionally with an integrated gear arranged on the output side), which acts on the hinge axis 3 via an electromagnetically actuated friction clutch 7 and a downstream transmission gear 8.
[020] Elektromotor 6 und Reib-Kupplung 7 sind mittels einer elektronischen Steuereinrichtung 9 betätigbar, welche außerdem mit einem die Stellung der Heckklappe 2 detektierenden Lagesensor 10 verbunden ist.Electric motor 6 and friction clutch 7 can be actuated by means of an electronic control device 9, which is also connected to a position sensor 10 which detects the position of the tailgate 2.
[021] Die Reib-Kupplung 7 besitzt vorteilhafterweise den aus der DE 102 25 580 AI bekannten Aufbau. Sie umfaßt ein mit einem Reibbelag 11 versehenes und mit einer Antriebswelle 12 drehfest verbundenes Rotorteil 13, an dem auf seiner dem Reibbelag 11 abgewandten Seite eine elektrische Spule 14 angeordnet ist, sowie eine drehfest, aber axial verschiebbar mit einer Abtriebs welle 15 verbundene Ankerscheibe 16. Außerdem ist an dem Rotorteil 13 zusätzlich ein Permanentmagnet 17 angeordnet, so daß bei nichtbestromter Spule 14 die Ankerscheibe 16 mit einer Kraft gegen den Reibbelag 11 des Rotorteiles 13 gedrückt wird, die groß genug ist, damit die Heckklappe 2 in der jeweiligen beim Ausschalten der Reib-Kupplung 7 eingenommenen Position sicher stehenbleibt und bei einer anschließenden manuellen Betätigung der Heckklappe 2 der Reibschluß zwischen Ankerscheibe 16 und Reibbelag 11 überwindbar ist.The friction clutch 7 advantageously has the structure known from DE 102 25 580 AI. It comprises a provided with a friction lining 11 and rotatably connected to a drive shaft 12 rotor part 13 on which on its side facing away from the friction lining 11 an electric coil 14 is arranged, and a rotatably but axially displaceably connected to an output shaft 15 armature disk 16. In addition, a permanent magnet 17 is also arranged on the rotor part 13, so that when the coil 14 is not energized, the armature disk 16 is pressed against the friction lining 11 of the rotor part 13 with a force which is large enough for the tailgate 2 in the respective when the friction is switched off -Coupling 7 assumes the position it occupies and the frictional engagement between the armature disk 16 and the friction lining 11 can be overcome with a subsequent manual actuation of the tailgate 2.
[022] Nachfolgend wird auf die Funktionsweise der in den Fig.1 und 2 dargestellten Anordnungen zur Durchführung des erfindungsgemäßen Verfahrens eingegangen. Dabei möge sich die Heckklappe 2 zunächst in ihrer geschlossenen Stellung I befinden.The mode of operation of the arrangements for carrying out the method according to the invention shown in FIGS. 1 and 2 will be discussed below. The tailgate 2 may initially be in its closed position I.
[023] Soll nun die Heckklappe 2 automatisch geöffnet werden, so betätigt der Fahrzeughalter z.B. eine entsprechende Fernbedienung. Diese wirkt über eine nicht dargestellte Empfangsvorrichtung auf die Steuereinrichtung 9, welche dann sowohl den Elektromotor 6 aktiviert als auch durch Bestromung der Spule 14 eine maximale Übertragung des Drehmomentes von der Antriebswelle 12 zur Abtriebswelle 15 bewirkt. Die Heckklappe 2 wird dann automatisch geöffnet.If the tailgate 2 is now to be opened automatically, the vehicle owner actuates e.g. an appropriate remote control. This acts on the control device 9 via a receiving device (not shown), which then both activates the electric motor 6 and, by energizing the coil 14, causes a maximum transmission of the torque from the drive shaft 12 to the output shaft 15. The tailgate 2 is then opened automatically.
[024] Sobald die elektronische Steuereinrichtung 9 mit Hilfe des Lagesensors 10 feststellt, daß die Heckklappe 2 eine vordefinierte Stellung (Schaltstellung) erreicht, die unmittelbar vor der geöffneten Endstellung der Heckklappe 2 liegt, schaltet sie den Erregerstrom der Spule 14 ab. Dadurch überträgt die Reib-Kupplung 7 nur noch ein durch den Permanentmagneten 17 bedingtes vermindertes Drehmoment von der Antriebswelle 12 auf die Abtriebswelle 15, so daß die Heckklappe 2 durch den weiterlaufenden Elektromotor 6 und die Gasfedern 5 relativ langsam in die geöffnete Endstellung geschwenkt wird. Nach Erreichen dieser Stellung wird dann der Elektromotor 6 durch die Steuereinrichtung 9 abgeschaltet.As soon as the electronic control device 9 detects with the help of the position sensor 10, that the tailgate 2 reaches a predefined position (switch position) which is immediately before the open end position of the tailgate 2, it switches off the excitation current of the coil 14. As a result, the friction clutch 7 only transmits a reduced torque caused by the permanent magnet 17 from the drive shaft 12 to the output shaft 15, so that the tailgate 2 is pivoted relatively slowly into the open end position by the continuing electric motor 6 and the gas springs 5. After reaching this position, the electric motor 6 is then switched off by the control device 9.
[025] Soll die Heckklappe 2 wieder geschlossen werden, erfolgt der Schließvorgang der Heckklappe 2 in einer dem Öffnungsvorgang entsprechenden Weise.[025] If the tailgate 2 is to be closed again, the tailgate 2 is closed in a manner corresponding to the opening procedure.
[026] Die Erfindung ist keineswegs auf das vorstehend beschriebene Ausführungsbeispiel beschränkt. So kann es vorteilhaft sein, den Erregerstrom der Spule der Reib-Kupplung bei Erreichen der Schaltstellung nicht vollständig abzuschalten, sondern nur allmählich zu reduzieren, um zu vermeiden, daß durch eine plötzliche Verminderung des zu übertragenden Drehmomentes ruckartige Bewegungen der Antriebsteile bzw. der Heckklappe verursacht werden.[026] The invention is in no way limited to the exemplary embodiment described above. So it can be advantageous not to completely switch off the excitation current of the coil of the friction clutch when the switching position is reached, but to reduce it only gradually, in order to avoid jerky movements of the drive parts or the tailgate caused by a sudden reduction in the torque to be transmitted become.
[027] Bei dem Lagesensor braucht es sich nicht zwingend um einen von dem Antrieb separaten Sensor handeln. Vielmehr kann der Lagesensor auch in den Antrieb integriert werden und z.B. zur Lagebestimmung der Heckklappe statt deren Schwenkwinkel die Umdrehung der Abtriebswelle auswerten.[027] The position sensor need not necessarily be a sensor separate from the drive. Rather, the position sensor can also be integrated in the drive and e.g. To determine the position of the tailgate, evaluate the rotation of the output shaft instead of its swivel angle.
[028] Außerdem muß der Antrieb nicht zwingend mit der Scharnierachse der Heckklappe verbunden sein, sondern er kann beispielsweise auch auf einen mit der Heckklappe verbundenen Scharnierbügel wirken. Bezugszeichenliste[028] In addition, the drive does not necessarily have to be connected to the hinge axis of the tailgate, but it can also act, for example, on a hinge bracket connected to the tailgate. LIST OF REFERENCE NUMBERS
[029] 1 Kraftfahrzeug1 motor vehicle
[030] 2 Heckklappe, Fahrzeugtür[030] 2 tailgate, vehicle door
[031] 3 Scharnierachse[031] 3 hinge axis
[032] 4 Antrieb4 drive
[033] 5 Gasfeder, elastisches Element[033] 5 gas spring, elastic element
[034] 6 Elektromotor[034] 6 electric motor
[035] 7 Reib-Kupplung7 Friction clutch
[036] 8 Übertragungsgetriebe8 transmission gears
[037] 9 Steuereinrichtung[037] 9 control device
[038] 10 Lagesensor10 position sensor
[039] 11 Reibbelag11 Friction lining
[040] 12 Antriebswelle[040] 12 drive shaft
[041] 13 Rotorteil[041] 13 rotor part
[042] 14 Spule [043] 15 Abtriebswelle[042] 14 coil [043] 15 output shaft
[044] 16 Ankerscheibe16 anchor plate
[045] 17 Permanentmagnet17 Permanent magnet
[046] I geschlossene Stellung der Heckklappe, erste Endstellung[046] I closed position of the tailgate, first end position
[047] II Schaltstellung der Heckklappe[047] II Switch position of the tailgate
[048] III geöffnete Stellung der Heckklappe, zweite Endstellung III open position of the tailgate, second end position

Claims

AnsprücheExpectations
[001] Verfahren zum automatischen Betätigen einer Fahrzeugtür (2), insbesondere der Heckklappe eines Kraftfahrzeuges (1), von einer ersten in eine zweite Endstellung (I, III) mittels eines Antriebes (4), der eine durch eine Steuereinrichtung (9) betätigbare elektromagnetische Reib-Kupplung (7) mit einer be- strombaren Spule (14) umfaßt, dadurch gekennzeichnet, daß die Steuereinrichtung (9) den zur Betätigung der Reib-Kupplung (7) durch die Spule (14) fließende Erregerstrom reduziert, sobald die Fahrzeugtür (2) eine vorgegebene, vor der jeweiligen Endstellung (I, III) der Fahrzeugtür (2) liegende Schaltstellung (II) erreicht, so daß die Fahrzeugtür (2) anschließend von dem Antrieb (4) mit einem von der Reib-Kupplung (7) übertragenen verminderten Drehmoment in ihre jeweilige Endstellung (I, III) bewegt wird.Method for automatically actuating a vehicle door (2), in particular the tailgate of a motor vehicle (1), from a first to a second end position (I, III) by means of a drive (4) which can be actuated by a control device (9) Electromagnetic friction clutch (7) with a coil (14) which can be energized, characterized in that the control device (9) reduces the excitation current flowing through the coil (14) to actuate the friction clutch (7) as soon as the vehicle door (2) a predetermined switching position (II) before the respective end position (I, III) of the vehicle door (2) is reached, so that the vehicle door (2) is then driven by the drive (4) with one of the friction clutch (7 ) transmitted reduced torque is moved into their respective end positions (I, III).
[002] Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß der zeitliche Verlauf des Erregerstromes durch die Spule (14) derart gewählt wird, daß das von der Reib-Kupplung (7) übertragene Drehmoment kontinuierlich von einem Maximalwert bis zu einem vorgegebenen Endwert vermindert wird.Method according to claim 1, characterized in that the temporal course of the excitation current through the coil (14) is selected such that the torque transmitted by the friction clutch (7) is continuously reduced from a maximum value to a predetermined final value ,
[003] Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß als steuerbare elektromag-netische Reib-Kupplung (7) eine Kupplung verwendet wird, die ein zusätzliches elastisches Element oder einen Permanentmagneten (17) umfaßt, welches(r) bewirkt, daß die Reib-Kupplung (7) auch in dem nichtbestromten Zustand der Spule (14) ein vermindertes Drehmoment überträgt, das derart gewählt wird, daß die Fahrzeugtür (2) nach Abschalten des Antriebes (4) in der jeweiligen Position zwar stehen bleibt, aber eine manuelle Betätigung der Fahrzeugtür (2) möglich ist.Method according to claim 1, characterized in that a clutch is used as the controllable electromagnetic friction clutch (7) which comprises an additional elastic element or a permanent magnet (17) which (r) causes the friction -Coupling (7) even in the de-energized state of the coil (14) transmits a reduced torque, which is selected such that the vehicle door (2) remains in the respective position after the drive (4) has been switched off, but is operated manually the vehicle door (2) is possible.
[004] Verfahren nach Anspruch 3, dadurch gekennzeichnet, daß die Steuereinrichtung (9) den durch die Spule (14) der Reib-Kupplung (7) fließenden Erregerstrom vollständig abschaltet, sobald die Fahrzeugtür (2) die vor der entsprechenden Endstellung (I, III) hegende Schaltstellung erreicht, so daß die Fahrzeugtür von dem Antrieb mit einem definiert verminderten Drehmoment in ihre Endstellung verschwenkt wird.Method according to claim 3, characterized in that the control device (9) completely shuts off the excitation current flowing through the coil (14) of the friction clutch (7) as soon as the vehicle door (2) reaches the corresponding end position (I, III) reached switching position so that the vehicle door is pivoted into its end position by the drive with a defined reduced torque.
[005] Verfahren nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß bei Fahrzeugtüren, deren Öffnungs- oder Schließbewegung durch mindestens ein elastisches Element (5) unterstützt wird, der durch die Spule (14) der Reib- Kupplung (7) fließende Erregerstrom nach Erreichen der Schaltstellung (II) so weit vermindert wird, daß die Fahrzeugtür (2) durch die Kraft des elastischen Elementes (5) und dem Antrieb (4) zusammen in die jeweilige Endstellung (I, III) bewegt wird. Method according to one of claims 1 to 4, characterized in that in vehicle doors, the opening or closing movement of which is supported by at least one elastic element (5) which flows through the coil (14) of the friction clutch (7) Excitation current after reaching the switching position (II) is reduced so far that the vehicle door (2) is moved together by the force of the elastic element (5) and the drive (4) into the respective end position (I, III).
PCT/EP2005/052083 2004-05-11 2005-05-09 Method for the automatic actuation of a motor vehicle door WO2005111354A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200410023120 DE102004023120A1 (en) 2004-05-11 2004-05-11 Method for automatically actuating a motor vehicle door
DE102004023120.6 2004-05-11

Publications (1)

Publication Number Publication Date
WO2005111354A1 true WO2005111354A1 (en) 2005-11-24

Family

ID=34969543

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2005/052083 WO2005111354A1 (en) 2004-05-11 2005-05-09 Method for the automatic actuation of a motor vehicle door

Country Status (2)

Country Link
DE (1) DE102004023120A1 (en)
WO (1) WO2005111354A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1835109A2 (en) * 2006-03-14 2007-09-19 Delphi Technologies, Inc. Compensating device for a closing mechanism of a rear door that is rotatable about an axis
WO2017083970A1 (en) 2015-11-16 2017-05-26 Exonetik Inc. Human-hybrid powertrain for a vehicle or moving equipment using magnetorheological fluid clutch apparatus
EP3299261B1 (en) * 2012-12-07 2021-01-27 Multimatic Inc. Decouplable power drive for tailgates

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008038861A1 (en) 2008-08-13 2010-07-08 Audi Ag Method for closing vehicle wings, involves moving vehicle wings by motor drive by spatial catch moving from its opening position into its partially locked locking position, and desired locking actuation of vehicle wings is detected
DE102013002499B4 (en) 2013-02-13 2024-02-01 Volkswagen Aktiengesellschaft Device and method for automatically operating a tailgate of a vehicle

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10152697A1 (en) * 2001-10-19 2003-04-30 Valeo Sicherheitssysteme Gmbh Electromagnetic friction clutch
DE10225580A1 (en) * 2002-06-10 2003-12-18 Valeo Sicherheitssysteme Gmbh Electromagnetic frictionally engaged clutch for motor vehicle presses anchor disk against friction lining of rotor with force that is big enough for vehicle door to be kept in position, which is taken up when clutch is switched off

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE654240C (en) * 1934-09-08 1937-12-15 Etienne Vadasz Brake for folding doors, especially for railroad cars and motor vehicles
DE1154004B (en) * 1955-06-17 1963-09-05 Vapor Corp Device for opening and closing doors, in particular motor vehicle doors
US3398484A (en) * 1965-06-04 1968-08-27 Katsumura Toru Car door actuator
DE4209876A1 (en) * 1992-03-26 1993-09-30 Scharwaechter Gmbh Co Kg Controllable vehicle door setting device - contains restraining rod and braking-locking mechanism contg. spindle and nut with electromotor-driven locking device
JP2840039B2 (en) * 1994-12-12 1998-12-24 株式会社大井製作所 Door closure
DE19754167B4 (en) * 1997-12-06 2008-08-21 Volkswagen Ag Device for stepless locking of a component pivotable about an axis

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10152697A1 (en) * 2001-10-19 2003-04-30 Valeo Sicherheitssysteme Gmbh Electromagnetic friction clutch
DE10225580A1 (en) * 2002-06-10 2003-12-18 Valeo Sicherheitssysteme Gmbh Electromagnetic frictionally engaged clutch for motor vehicle presses anchor disk against friction lining of rotor with force that is big enough for vehicle door to be kept in position, which is taken up when clutch is switched off

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1835109A2 (en) * 2006-03-14 2007-09-19 Delphi Technologies, Inc. Compensating device for a closing mechanism of a rear door that is rotatable about an axis
EP3299261B1 (en) * 2012-12-07 2021-01-27 Multimatic Inc. Decouplable power drive for tailgates
WO2017083970A1 (en) 2015-11-16 2017-05-26 Exonetik Inc. Human-hybrid powertrain for a vehicle or moving equipment using magnetorheological fluid clutch apparatus
EP3377719A4 (en) * 2015-11-16 2019-07-24 Exonetik Inc. Human-hybrid powertrain for a vehicle or moving equipment using magnetorheological fluid clutch apparatus
US10780943B2 (en) 2015-11-16 2020-09-22 Exonetik Inc. Human-hybrid powertrain for a vehicle or moving equipment using magnetorheological fluid clutch apparatus
US11267529B2 (en) 2015-11-16 2022-03-08 Exonetik Inc. Human-hybrid powertrain for a vehicle or moving equipment using magnetorheological fluid clutch apparatus
US11878767B2 (en) 2015-11-16 2024-01-23 Exonetik Inc. Human-hybrid powertrain for a vehicle or moving equipment using magnetorheological fluid clutch apparatus

Also Published As

Publication number Publication date
DE102004023120A1 (en) 2005-12-08

Similar Documents

Publication Publication Date Title
EP1516130B1 (en) Electromagnetic frictionally engaged clutch and method for operating the same
EP2318624B1 (en) Door opening mechanism with automatic adjustment of the door opening latch
DE102019114170A1 (en) DRIVEN ACTUATOR WITH SELF-RELEASE COUPLING UNIT
EP1603213B1 (en) Motor-drive assembly for a vehicle component
AT518430B1 (en) Furniture drive system
DE10152697A1 (en) Electromagnetic friction clutch
DE202005020087U1 (en) Drive arrangement for the motorized adjustment of a motor vehicle door or the like.
WO2007035971A1 (en) Furniture hinge
AT506644A1 (en) FURNITURE DRIVE FOR DRIVING A MOVABLE FURNITURE PART
EP2284345A1 (en) Braking device for a drive device for moving a door and drive device equipped with same
WO2008154664A1 (en) Device for locking a lock
DE202012012799U1 (en) Servo mechanism for opening a lock
WO2009137849A1 (en) Furniture drive
WO2005111354A1 (en) Method for the automatic actuation of a motor vehicle door
DE102006042403A1 (en) Motor-driven driving device for a tailgate of a vehicle comprises an electric drive motor connected to a drive spindle and a spindle nut without using a coupling and a brake unit which stops the rotation of the spindle and nut
DE102009036872A1 (en) Door unit, particularly motor vehicle door unit, comprises motion transfer member which is attached to door leaf, drive shaft, and clutch member, which interacts with drive shaft for changing closing force
DE102007027622A1 (en) Drive arrangement for e.g. motor vehicle rear flap, has control unit to switch clutch in intermediate-coupling condition or detachable and coupling conditions, during motor driven adjustment process of flap before reaching end position
DE202006010697U1 (en) Drive arrangement for the motorized adjustment of a motor vehicle flap or door
DE2720009A1 (en) MOTOR ADJUSTABLE BUTTERFLY FLAP FOR FIREPLACES
DE102004023098A1 (en) Automatic door opening and closing system for motor vehicle has drive unit with electric motor and control unit to operate electromagnetic friction clutch to open and close vehicle door, and sensor that detects obstacles when opening door
DE102018117415A1 (en) Drive arrangement for motorized adjustment of a flap of a motor vehicle
EP3739157A1 (en) Door closing system for closing doors and door with such a door closing system
WO2020011891A1 (en) Drive device for a door
DE102013212649B3 (en) Device for controlling closing sequence of double swing revolving door plant, has energized electromagnet brake disk coupled with drive plate that is coupled with movable part of drive device of gear wing through freewheel bearing
DE102013212515A1 (en) door system

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BW BY BZ CA CH CN CO CR CU CZ DK DM DZ EC EE EG ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KM KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NA NG NI NO NZ OM PG PH PL PT RO RU SC SD SE SG SK SL SM SY TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): GM KE LS MW MZ NA SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LT LU MC NL PL PT RO SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG

121 Ep: the epo has been informed by wipo that ep was designated in this application
122 Ep: pct application non-entry in european phase