EP3507436B1 - Türgriffsystem für ein kraftfahrzeug - Google Patents

Türgriffsystem für ein kraftfahrzeug Download PDF

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Publication number
EP3507436B1
EP3507436B1 EP17794700.9A EP17794700A EP3507436B1 EP 3507436 B1 EP3507436 B1 EP 3507436B1 EP 17794700 A EP17794700 A EP 17794700A EP 3507436 B1 EP3507436 B1 EP 3507436B1
Authority
EP
European Patent Office
Prior art keywords
door handle
detection element
handle system
sensor
accordance
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP17794700.9A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP3507436A1 (de
Inventor
Matthias Koch
Nicole LIERSCH
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Witte Automotive GmbH
Original Assignee
Witte Automotive 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 Witte Automotive GmbH filed Critical Witte Automotive GmbH
Publication of EP3507436A1 publication Critical patent/EP3507436A1/de
Application granted granted Critical
Publication of EP3507436B1 publication Critical patent/EP3507436B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B81/00—Power-actuated vehicle locks
    • E05B81/54—Electrical circuits
    • E05B81/64—Monitoring or sensing, e.g. by using switches or sensors
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B81/00—Power-actuated vehicle locks
    • E05B81/02—Power-actuated vehicle locks characterised by the type of actuators used
    • E05B81/04—Electrical
    • E05B81/06—Electrical using rotary motors
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B81/00—Power-actuated vehicle locks
    • E05B81/24—Power-actuated vehicle locks characterised by constructional features of the actuator or the power transmission
    • E05B81/32—Details of the actuator transmission
    • E05B81/34—Details of the actuator transmission of geared transmissions
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B85/00—Details of vehicle locks not provided for in groups E05B77/00 - E05B83/00
    • E05B85/10—Handles
    • E05B85/103—Handles creating a completely closed wing surface
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B85/00—Details of vehicle locks not provided for in groups E05B77/00 - E05B83/00
    • E05B85/10—Handles
    • E05B85/107—Pop-out handles, e.g. sliding outwardly before rotation
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B81/00—Power-actuated vehicle locks
    • E05B81/54—Electrical circuits
    • E05B81/64—Monitoring or sensing, e.g. by using switches or sensors
    • E05B81/76—Detection of handle operation; Detection of a user approaching a handle; Electrical switching actions performed by door handles

Definitions

  • the present invention relates to a door handle system for a motor vehicle, comprising a fastening bracket, at least one component movable relative to the fastening bracket and at least one sensor for detecting a position of the movable component relative to the fastening bracket.
  • Door handle systems of this type are known in principle.
  • microswitches are used in such door handle systems in order to detect the position of a movable component or a plurality of movable components relative to the fastening bracket.
  • these microswitches prove to be disadvantageous insofar as they require a comparatively large amount of installation space, are prone to wear and are sensitive to external influences such as vibrations, moisture or dust.
  • the use of Hall sensors for detecting the position of a movable component is also known. However, these require the use of magnetic material, which has a negative effect on manufacturing costs.
  • a door handle system with the features of the preamble of the independent claims is from FR 2 889 553 A1 known.
  • Other door handle systems, especially for motor vehicles, are for example in the U.S. 5,844,470 A , the EP 3 073 035 A1 and the US 2014/000167 A1 shown.
  • the invention is based on the object of creating a door handle system of the type mentioned at the beginning, which is characterized by greater economic efficiency.
  • the object is achieved by a door handle system with the features of claims 1 or 3 and, inter alia, in that the sensor is an inductive sensor.
  • an inductive sensor measures the change in an inductance due to a change in the content of an electrically conductive material, for example metal, in the detection area of the sensor.
  • the inductive sensor forms an oscillating circuit, the frequency of which changes when the content of the electrically conductive material in the detection area of the sensor changes, for example the metal content in the detection area increases or decreases.
  • Inductive sensors have the advantage over microswitches that they detect contact-free and thus virtually wear-free and are also insensitive to external influences such as vibrations, moisture or dust. Ultimately, both of these contribute to the permanently reliable function of the sensors. In addition, inductive sensors require significantly less space than microswitches. Compared to Hall sensors, inductive sensors also have the advantage that they do not require a magnetic material for the detection, but rather electrically conductive material, such as simple metal, is sufficient.
  • an inductive sensor enables not only an absolute determination of the position of the movable component, but several positions of the movable component can also be determined by means of a single inductive sensor.
  • the use of an inductive sensor not only enables a more compact design, but also a more cost-effective production of the door handle system, both of which contribute to a higher economic efficiency of the door handle system.
  • the senor could be attached to the movable component and detect its movement relative to a stationary, electrically conductive detection element attached, for example, to a mounting bracket. According to the invention, however, the sensor is attached to the fastening bracket and detects the position of a movable electrically conductive detection element, which in most cases is more favorable due to the design.
  • the electrically conductive detection element can be attached directly to or in the movable component.
  • a drive element for driving the movable component.
  • a drive element is preferably part of a transmission connected between a motor, in particular an electric motor, and the movable component.
  • the drive element can be part of a worm gear and in particular a worm wheel.
  • the detection element performs a linear movement through the detection area of the sensor.
  • the detection element performs a non-linear, for example circular, movement through the detection area.
  • the detection element can be provided on or in a carrier, for example in the form of an eccentric, which is connected to the drive element in a rotationally fixed manner.
  • the carrier ensures a rotational movement of the detection element and thus enables in a particularly simple manner, with a compact design at the same time to realize sufficient change in the content of electrical material in the detection area of the sensor for the position detection, since the detection element can extend around an axis of rotation of the carrier.
  • the detection element according to a first aspect according to claim 1 of the present invention expands continuously in a direction of movement.
  • the detection element can increase continuously in one direction of movement.
  • a second aspect according to claim 3 of the present invention relates to an embodiment in which the detection element is formed by a series of discrete individual elements spaced apart from one another.
  • the distance and / or a height and / or a width of the individual elements can increase or decrease continuously, viewed in a direction of movement.
  • Each of these measures ensures that the content of electrically conductive material detected by the sensor changes when the detection element moves in the detection area of the sensor.
  • the senor When a predetermined position of the detection element is reached, the sensor advantageously outputs a signal which, for example, can trigger a deactivation of the mentioned motor and / or the electrical opening of a door lock.
  • the movable component can be a handle part, for example an outside door handle.
  • the handle part can preferably be received in the fastening bracket in such a way that an outside of the handle part is flush with an outer panel of the motor vehicle surrounding the door handle system.
  • a door handle system for a motor vehicle is shown.
  • the door handle system is intended for installation in a door, in particular a left side door of the motor vehicle.
  • the door handle system comprises a fastening bracket 10 and a handle part 12, in the present exemplary embodiment an outside door handle, which is pivotably mounted on the fastening bracket 10.
  • the handle part 12 can be pivoted about a pivot axis 14, which in the present exemplary embodiment is oriented essentially vertically.
  • Fig. 1 shows the handle part 12 in a rest position in which it is completely received in the fastening bracket 10 in such a way that an outer surface 16 of the handle part 12 is essentially flush with an outer edge 18 of the fastening bracket. If the fastening bracket 10 is flush with an outer panel of the motor vehicle, then the outer surface 16 of the handle part 12 in the rest position is also flush with the outer panel of the motor vehicle.
  • the door handle system comprises an electric drive 20 integrated into the fastening bracket 10 ( Fig. 3 ), which is coupled to the handle part 12 to remove this from the in Fig. 1 rest position shown in an in Fig. 2
  • the electric drive 20 can always automatically pivot the handle part 12 into the actuation position when an authorized user approaches the vehicle.
  • the electric drive 20 comprises an electric motor 22, on the output shaft 24 of which a worm 26 is embodied in a rotationally fixed manner.
  • the worm 26 is in engagement with a worm wheel 28, the axis of rotation 30 of which coincides with the pivot axis 14 of the handle part 12. More precisely, the worm wheel 28 is seated in a rotationally fixed manner on the pivot axis 14, so that a rotation of the worm wheel 28 results directly in a pivoting of the handle part 12.
  • the detection element 34 is a metal foil which has an elongated strip shape and is curved in the circumferential direction around the pivot axis 14.
  • the detection element 34 runs in the direction of its one end, in Fig. 3 towards its left end, continuously pointed.
  • the detection element 34 expands in the direction of its in Fig. 3 right end, ie the width of the detection element 34, viewed in the longitudinal direction of the detection element 34, increases continuously. It goes without saying that the expansion of the detection element 34 can also take place in the opposite direction.
  • the metal foil is applied to a carrier 36 formed from a plastic material, which in turn sits on the pivot axis 14 in a rotationally fixed manner.
  • the carrier 36 has the shape of an eccentric, but it goes without saying that the carrier 36 could also have any other shape that enables the detection element 34 to extend in the circumferential direction around the pivot axis 14. Nor is it necessarily necessary to provide a separate carrier 36 for the detection element 34. If, for example, the worm wheel 28 is formed from a plastic material, the detection element 34 could also be attached directly to the worm wheel 28, as a result of which a separate carrier 36 could be dispensed with.
  • the detection element 34 is arranged in the detection area of the sensor 32 and moves when the worm wheel 28 is rotated and thus the handle part 12 is pivoted relative to the sensor 32, more precisely in the circumferential direction around the pivot axis 14 through the detection area of the sensor 32
  • the sensor 32 detects a different amount of electrically conductive material depending on the rotational position of the worm wheel 28 and carrier 36, which leads to a corresponding change in frequency of the oscillating circuit of the sensor 32, from which the position of the detection element 34 and thus ultimately of the handle part 12 can be determined absolutely.
  • the senor 32 is arranged at a first possible location (1.), for example above the carrier 36. Purely by way of example, FIG Fig. 3 but three further possible locations (2.-4.) for the arrangement of the sensor 32 are indicated.
  • the only decisive factor is that the sensor 32 and the detection element 34 are arranged relative to one another in such a way that the detection element 34 moves through the detection area of the sensor 32 when the worm wheel 28 is rotated.
  • Reaching a predetermined change in frequency of the oscillating circuit can be defined as a switching point of the sensor 32 at which the handle part 12 has reached its actuation position and the electric motor 22 is stopped.
  • the handle part 32 If the handle part 32 is in its actuation position, the user can manually pivot the handle part 12 beyond the actuation position to move through the Handle part 12 to actuate a Bowden cable, which couples the handle part 12 with the mechanism of a door lock and accordingly enables the door lock to be opened manually.
  • a servo-opening of the door lock is also conceivable, in which the door lock is not mechanically connected to the door handle system, but rather electrically.
  • a manual pivoting of the handle part 12 by the user beyond the actuation position is in turn detected by the sensor 32 and when the handle part 12 reaches a predetermined pivot position, a corresponding signal is output from the sensor 32 to the door lock in order to open it electrically.

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  • Lock And Its Accessories (AREA)
EP17794700.9A 2016-10-27 2017-10-25 Türgriffsystem für ein kraftfahrzeug Active EP3507436B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102016120576.1A DE102016120576A1 (de) 2016-10-27 2016-10-27 Türgriffsystem für ein Kraftfahrzeug
PCT/EP2017/077227 WO2018077915A1 (de) 2016-10-27 2017-10-25 Türgriffsystem für ein kraftfahrzeug

Publications (2)

Publication Number Publication Date
EP3507436A1 EP3507436A1 (de) 2019-07-10
EP3507436B1 true EP3507436B1 (de) 2020-12-02

Family

ID=60268359

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17794700.9A Active EP3507436B1 (de) 2016-10-27 2017-10-25 Türgriffsystem für ein kraftfahrzeug

Country Status (4)

Country Link
EP (1) EP3507436B1 (zh)
CN (1) CN109923273B (zh)
DE (1) DE102016120576A1 (zh)
WO (1) WO2018077915A1 (zh)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102018120074A1 (de) * 2018-08-17 2020-02-20 Witte Automotive Gmbh Schließsystem
DE102022123131A1 (de) * 2022-09-12 2024-04-25 Kiekert Aktiengesellschaft Vorrichtung zum Antrieb eines Türgriffs

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4205957A1 (de) * 1992-02-27 1993-09-02 Vogt Electronic Ag Spulenaufbau

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2750155B1 (fr) * 1996-06-25 1998-09-04 Valeo Securite Habitacle Dispositif de commande de l'ouverture d'une serrure d'un ouvrant de vehicule automobile
DE19743129C2 (de) * 1997-08-25 1999-08-26 Bosch Gmbh Robert Kraftfahrzeug-Schließvorrichtung mit einer Positionserkennung eines sich bewegenden Stellelementes
WO1999010615A1 (de) * 1997-08-25 1999-03-04 Robert Bosch Gmbh Kraftfahrzeug-schliessvorrichtung mit einer positionserkennung eines sich bewegenden stellelementes
FR2889553B1 (fr) * 2005-08-02 2007-11-09 Renault Sas Commande d'ouverture exterieure motorisee d'un ouvrant d'un vehicule automobile
US8701353B2 (en) * 2012-06-29 2014-04-22 Ford Global Technologies, Llc Deployable door handle for vehicles
JP6009325B2 (ja) * 2012-11-12 2016-10-19 アイシン精機株式会社 ドアハンドル装置
US9157768B2 (en) * 2013-03-04 2015-10-13 Texas Instruments Incorporated Inductive sensing including inductance multiplication with series connected coils
FR3023865B1 (fr) * 2014-07-17 2016-07-29 Mgi Coutier Espana Sl Ensemble de poignee pour vehicule automobile et ouvrant comprenant un tel ensemble de poignee
EP3032013B1 (de) * 2014-12-08 2017-03-29 Huf Hülsbeck & Fürst GmbH & Co. KG Betätigungshandhabe für ein Kraftfahrzeug
DE102015205659A1 (de) * 2015-03-27 2016-09-29 Volkswagen Aktiengesellschaft Griffvorrichtung für eine Tür, Türanordnung
FR3051501B1 (fr) * 2016-05-20 2018-05-18 Peugeot Citroen Automobiles Sa Commande d’ouverture exterieure de vehicule automobile
DE102016007112A1 (de) * 2016-06-13 2017-12-14 Huf Hülsbeck & Fürst Gmbh & Co. Kg Griffeinheit für ein bewegliches Teil eines Fahrzeugs

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4205957A1 (de) * 1992-02-27 1993-09-02 Vogt Electronic Ag Spulenaufbau

Also Published As

Publication number Publication date
DE102016120576A1 (de) 2018-05-03
EP3507436A1 (de) 2019-07-10
WO2018077915A1 (de) 2018-05-03
CN109923273B (zh) 2022-05-03
CN109923273A (zh) 2019-06-21

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