EP3640420B1 - Ensemble poignée et procédé permettant de détecter la position d'une poignée de porte - Google Patents

Ensemble poignée et procédé permettant de détecter la position d'une poignée de porte Download PDF

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Publication number
EP3640420B1
EP3640420B1 EP18200755.9A EP18200755A EP3640420B1 EP 3640420 B1 EP3640420 B1 EP 3640420B1 EP 18200755 A EP18200755 A EP 18200755A EP 3640420 B1 EP3640420 B1 EP 3640420B1
Authority
EP
European Patent Office
Prior art keywords
handle
capacitive sensor
door
sensor
detecting
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
EP18200755.9A
Other languages
German (de)
English (en)
Other versions
EP3640420A1 (fr
Inventor
Dietmar Krauss
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.)
Minebea AccessSolutions Deutschland GmbH
Original Assignee
Minebea AccessSolutions Deutschland 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 Minebea AccessSolutions Deutschland GmbH filed Critical Minebea AccessSolutions Deutschland GmbH
Priority to EP18200755.9A priority Critical patent/EP3640420B1/fr
Priority to PCT/EP2019/077798 priority patent/WO2020078914A1/fr
Publication of EP3640420A1 publication Critical patent/EP3640420A1/fr
Application granted granted Critical
Publication of EP3640420B1 publication Critical patent/EP3640420B1/fr
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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
    • E05B81/76—Detection of handle operation; Detection of a user approaching a handle; Electrical switching actions performed by door handles
    • E05B81/77—Detection of handle operation; Detection of a user approaching a handle; Electrical switching actions performed by door handles comprising sensors detecting the presence of the hand of a user
    • 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
    • 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

Definitions

  • the invention relates to a handle assembly for a vehicle door and to a method for detecting the position of a door handle.
  • Door handles for vehicles typically protrude from the vehicle door and may interfere with the aerodynamics and/or the design of the vehicle.
  • extendable door handles have been developed which can be moved from a retracted position in which they are flush with the outer contour of the vehicle, to an extended position of use in which a user can easily grab the handle.
  • US 2016/0 222 703 A1 discloses a handle for a vehicle door.
  • the handle comprises a first sensor at a distal end of the handle for detecting the operation of the handle, a second sensor for detecting the proximity of a user, and an additional sensor, e.g. a switch, for detecting a projected position of the handle.
  • the object of the invention is to provide reliable information on the position of the door handle in a manner which is cost effective and space saving.
  • the invention provides a handle assembly for a vehicle door according to claim 1 and a method for detecting the position of a door handle according to claim 5.
  • the invention is based on the basic idea to use the capacitive sensors needed anyhow for the detection of a hand approach or a hand touch of the handle, for also detecting the position of the handle. Thereby, additional micro switches and/or hall sensors are not necessary, and the handle assembly can be built more cost effective and space saving.
  • the detection it can be determined in particular if the door handle is in the retracted or the extended position.
  • intermediate position can however also be detected.
  • the capacitive sensor contains no mechanical moving parts and is not subject to wear as it is for example for micro switches. Additionally, a capacitive sensor is less complex that a unit with hall sensor with related magnet and mechanical parts. Therefore, the lifetime of the handle unit is improved.
  • the capacitive sensor may comprise a copper area on a printed circuit board assembly.
  • Capacitive sensors comprising a copper area on a printed circuit board assembly are very cheap in the production enabling the production of a cost effective handle assembly.
  • the second sensor could offer additional functionality to the handle assembly if the second sensor is not a capacitive sensor.
  • a finger print sensor could handle, for example, the verification procedure to enter the car and possibly replace the vehicle keys.
  • the signal may be evaluated to determine intermediate positions as well. Therefore, additional sensors for detection of intermediate positions for instance, additional micro switches or hall sensors become redundant enabling a cost effective handle assembly.
  • a signal from a second capacitive sensor may be taken into account in the detection of the different positions.
  • the first and second capacitive sensors may be used for opening and closing a door lock.
  • additional parts for opening and closing the door lock become redundant.
  • FIGS 1 to 4 are schematic in nature and do not necessarily illustrate the particular appearance or configuration that may be used in the commercial implementation of the invention.
  • Figure 1 shows a car 10 with multiple vehicle doors 12 each of which comprises a handle assembly 14.
  • the handle assembly 14 comprises a handle support 15, a handle 16, an evaluation circuit 17, and a capacitive sensor 18 which is located on an outer surface 20 of the handle 16.
  • Handle support 15 carries handle 16 and all components (motor, guide for the handle, gear, etc.) necessary for moving handle 16 from the retracted position to the extended position, and vice versa. Further, handle support 15 closes the opening the door structure so that dirt, water, etc. cannot enter into the door.
  • the handle 16 is shown in a retracted position in which the outer surface 20 of the handle 16 is substantially flush with the outer surface 22 of the vehicle door.
  • capacitive sensor 18 has a small distance from the sheet metal from which defines the outer surface 22 of the vehicle door.
  • handle 16 can be moved into an extended position as shown in figure 3 .
  • handle 16 protrudes outwardly from door 12 and from handle support 15 so that it a user can easily grab the handle and open vehicle door 12.
  • capacitive sensor 12 In the extended position, capacitive sensor 12 has a distance from the outer surface 22 of the vehicle door 12 which is larger than in the retracted position of handle 16.
  • FIG 3 two rods 24 are visible which symbolize the guide for handle 16 and which allow displacing handle 16 between the retracted position and the extended position.
  • the rods 24 extend from handle 16 through apertures 25 in handle support 15 to a drive mechanism which is adapted for displacing handle 16 between the extended and the retracted positions, and vice versa. Details of the drive are not necessary here as the nature of the drive is not necessary for understanding the invention.
  • Handle support 15 comprises a cavity 23 which has a contour corresponding to the contour of handle 16. Accordingly, handle 16 snugly fits into cavity 23 in the retracted position
  • Displacement of handle 16 from the extended position to the retracted position can be triggered by a signal which indicates that door 12 was closed, by a lapse of a predefined time period since the last actuation, a signal from a keyless go system, etc.
  • Displacement of handle 16 from the retracted position to the extended position can be triggered in particular by a signal from capacitive sensor 18 which indicates that a hand is in the vicinity of handle 16 or that handle 16 has been touched.
  • a signal from a keyless go system can be taken into account as well.
  • Capacitive sensor 18 here comprises two electrodes realized by copper areas on a printed circuit board assembly. Other types of capacitive sensors can be used as well.
  • evaluation circuit 17 is able to determine the capacity of capacitive sensor 18 which changes when there is a change of the dielectric constant in the vicinity of capacitive sensor 18. This can be used for detecting whether or not handle 16 was touched by a user or if the hand of a user is approaching handle 16.
  • evaluation circuit 17 is able to detect the change of the dielectric constant in the vicinity of capacitive sensor 18 caused by a displacement of handle 16 between the retracted position and the extended position.
  • capacitive sensor 18 In the retracted position, capacitive sensor 18 is very close to the sheet metal defining the outer structure of vehicle door 12. In the extended position of handle 16, capacitive sensor 12 is at a larger distance from the sheet metal. Thus, there is a notable difference in the capacity of capacitive sensor 18, and evaluation circuit 17 can detect whether door handle 18 is in the retraced position or in and extended position.
  • the evaluation circuit 17 is also adapted to detect intermediate positions of door handle 12 between the extracted position and the extended position.
  • the evaluation circuit 17 evaluates the capacity between a conductive surface arranged in or at door handle 16, and a conductive surface arranged stationary at vehicle door 12. This could be a dedicated surface associated with handle support 15, or even the sheet metal of door 12.
  • FIG 4 a second embodiment of the invention is shown which essentially corresponds to the first embodiment. Therefore, only the differences over the first embodiment are mentioned in the following. Identical and functionally identical components are provided with the same reference numerals.
  • sensor 28 is an additional capacitive sensor 18 such that the position of the handle can be detected with a higher accuracy.
  • the handle assembly 14 comprises at least two capacitive sensors 18, one capacitive sensor 18 could trigger the locking and the other one could trigger the unlocking of the vehicle door 12 in case the evaluation circuit 17 detects the vicinity of a hand and/or a touching of one of the capacitive sensors 18.
  • the second capacitive sensor 18 could be placed at a position in the handle 16 such that it is only sensitive to the movement of the handle 16 and not to the vicinity of a hand.

Landscapes

  • Lock And Its Accessories (AREA)

Claims (9)

  1. Ensemble de poignée (14) pour une portière de véhicule (12), comprenant une poignée (16) qui est mobile entre une position rétractée et une position sorite, et un circuit d'évaluation (17) et au moins un capteur capacitif (18) agencé sur la poignée (16), le circuit d'évaluation (17) étant apte à détecter la présence d'une main au voisinage du capteur et en outre apte à déterminer la position de la poignée, caractérisé en ce que
    le circuit d'évaluation (17) est apte à utiliser le capteur capacitif (18) pour la détection de l'approche d'une main ou le contact d'une main avec la poignée (16) et également pour la détection de la position de la poignée (16).
  2. Ensemble de poignée (14) selon la revendication 1, le capteur capacitif (18) étant entièrement recouvert du matériau de la poignée (16).
  3. Ensemble de poignée (14) selon l'une des revendications précédentes, le capteur capacitif (18) comprenant une zone de cuivre sur un ensemble de carte de circuits imprimés.
  4. Ensemble de poignée (14) selon l'une des revendications précédentes, un deuxième capteur (28) étant prévu.
  5. Procédé de détection de la position d'une poignée de portière (16) d'un ensemble de poignée (14) qui est mobile entre une position rétractée et une position sortie, en particulier une poignée de portière (16) qui fait partie de l'ensemble de poignée (14) tel que défini selon l'une des revendications précédentes, l'ensemble de poignée (14) comprenant un circuit d'évaluation (17) et au moins un capteur capacitif (18), le circuit d'évaluation (17) étant apte à détecter la présence d'une main au voisinage du capteur (18) et en outre apte à déterminer la position de la poignée (16), le procédé comprenant :
    a) la réception, par le circuit d'évaluation (17), d'un signal provenant d'un capteur capacitif (18) agencé dans la poignée (16), caractérisé par
    b) l'évaluation, au moyen du circuit d'évaluation (17), du signal provenant du capteur capacitif (18) pour détecter la main d'un utilisateur au voisinage de la poignée (16), et
    c) si aucune main d'utilisateur n'est détectée, l'évaluation, au moyen du circuit d'évaluation (17), du signal provenant du capteur capacitif (18) pour déterminer la position de la poignée de portière (16).
  6. Procédé selon la revendication 5, le signal étant évalué pour déterminer si la poignée de portière se trouve dans une position sortie ou une position rétractée.
  7. Procédé selon la revendication 5 ou la revendication 6, le signal étant évalué pour déterminer des positions intermédiaires.
  8. Procédé selon l'une des revendications 5 à 7, un signal provenant d'un deuxième capteur capacitif (18) étant pris en compte.
  9. Procédé selon la revendication 8, le premier et le deuxième capteur capacitif (18) étant également utilisés pour ouvrir et fermer une serrure de portière.
EP18200755.9A 2018-10-16 2018-10-16 Ensemble poignée et procédé permettant de détecter la position d'une poignée de porte Active EP3640420B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP18200755.9A EP3640420B1 (fr) 2018-10-16 2018-10-16 Ensemble poignée et procédé permettant de détecter la position d'une poignée de porte
PCT/EP2019/077798 WO2020078914A1 (fr) 2018-10-16 2019-10-14 Ensemble poignée et procédé de détection de la position d'une poignée de porte

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP18200755.9A EP3640420B1 (fr) 2018-10-16 2018-10-16 Ensemble poignée et procédé permettant de détecter la position d'une poignée de porte

Publications (2)

Publication Number Publication Date
EP3640420A1 EP3640420A1 (fr) 2020-04-22
EP3640420B1 true EP3640420B1 (fr) 2023-11-08

Family

ID=63878428

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18200755.9A Active EP3640420B1 (fr) 2018-10-16 2018-10-16 Ensemble poignée et procédé permettant de détecter la position d'une poignée de porte

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EP (1) EP3640420B1 (fr)
WO (1) WO2020078914A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102021201683B3 (de) * 2021-02-23 2022-03-24 Witte Automotive Gmbh Türgriffanordnung mit einem Verstellmechanismus für einen Türgriff
CN113775268A (zh) * 2021-08-13 2021-12-10 一汽奔腾轿车有限公司 一种门把手零点自动校正的方法、装置、设备及存储介质

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8786401B2 (en) * 2009-12-23 2014-07-22 Magna Mirrors Of America, Inc. Extendable flush door handle for vehicle
JP2016142046A (ja) * 2015-02-02 2016-08-08 アイシン精機株式会社 開閉体開閉装置
GB2548146B (en) * 2016-03-10 2021-07-28 Bentley Motors Ltd Door handle assembly
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

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WO2020078914A1 (fr) 2020-04-23
EP3640420A1 (fr) 2020-04-22

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