WO2014079666A1 - Unité de détection capacitive - Google Patents

Unité de détection capacitive Download PDF

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Publication number
WO2014079666A1
WO2014079666A1 PCT/EP2013/072643 EP2013072643W WO2014079666A1 WO 2014079666 A1 WO2014079666 A1 WO 2014079666A1 EP 2013072643 W EP2013072643 W EP 2013072643W WO 2014079666 A1 WO2014079666 A1 WO 2014079666A1
Authority
WO
WIPO (PCT)
Prior art keywords
wire
carrier element
sensor unit
sensor
winding
Prior art date
Application number
PCT/EP2013/072643
Other languages
German (de)
English (en)
Inventor
Mirko Schindler
Mario Muzzetto
Original Assignee
Huf Hülsbeck & Fürst Gmbh & Co. Kg
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 Huf Hülsbeck & Fürst Gmbh & Co. Kg filed Critical Huf Hülsbeck & Fürst Gmbh & Co. Kg
Publication of WO2014079666A1 publication Critical patent/WO2014079666A1/fr

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Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/94—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated
    • H03K17/945—Proximity switches
    • H03K17/955—Proximity switches using a capacitive detector
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R25/00—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles
    • B60R25/20—Means to switch the anti-theft system on or off
    • B60R25/2036—Means to switch the anti-theft system on or off by using the door logic and door and engine unlock means
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K2217/00—Indexing scheme related to electronic switching or gating, i.e. not by contact-making or -breaking covered by H03K17/00
    • H03K2217/94—Indexing scheme related to electronic switching or gating, i.e. not by contact-making or -breaking covered by H03K17/00 characterised by the way in which the control signal is generated
    • H03K2217/96—Touch switches
    • H03K2217/9607—Capacitive touch switches
    • H03K2217/960755—Constructional details of capacitive touch and proximity switches
    • H03K2217/96078—Sensor being a wire or a strip, e.g. used in automobile door handles or bumpers

Definitions

  • the present invention is directed to a sensor unit for contactless actuation of an actuating element, in particular a flap of a motor vehicle or the like, according to the preamble of claim 1.
  • the sensor unit is equipped with at least one capacitive sensor element, wherein the sensor element has a wire which is arranged on a carrier element protected from external influences.
  • the present invention is also directed to a safety system for (in particular) non-contact opening and / or closing of a flap of a vehicle or the like according to the preamble of claim 14.
  • the invention also relates to a method for producing a sensor unit for contactless actuation of an actuating element, in particular a flap of a vehicle or the like, according to the preamble of claim 15.
  • the document DE 10 2010 049 400 A1 discloses such a sensor unit.
  • capacitive sensors are used as proximity sensors in the corresponding sensor unit, which expediently have a wide-area electrode.
  • Wide area configured electrodes have the advantage that the sensor field is optimally designed to detect an approach of an object, in particular in the form of a leg of a user by a capacitive change in the sensor can.
  • the capacitive sensors have a certain width in order to improve the measurement result.
  • a sensor unit is apparent, which serves to control the tailgate of a vehicle without contact. This document also explains how collision prevention can be achieved with an object located in the region of the flap.
  • the document DE 10 2010 060 364 A1 also discloses a sensor unit for actuating the tailgate in a vehicle, which has two separate capacitive proximity sensors in order to be able to detect the movement of a leg metrologically.
  • This sensor unit is in contact with the security system of the vehicle, so that the sensor unit can also initiate authentication of an ID transmitter by a user.
  • the sensors known from the prior art for such sensor units thus have a certain width and length in order to achieve an optimum measuring range.
  • generally flat, electrically conductive tapes or films are used as sensors.
  • these sensors since these are located in a critical area in a vehicle, in particular on the inside of the bumper, which is exposed to heavy dirt, stone chipping, water jets and the like, these sensors must be protected against the external influences. In practice, it has been shown that unfortunately not sufficiently protected sensors have been damaged by splashing water and falling rocks, which led to the fact that the sensors are disabled. It is an object of the present invention to provide a sensor unit and a sensor system, in particular for a safety system for a vehicle, which overcomes the disadvantages of the prior art. In particular, it is an object of the present invention to obtain a cost-effective and robust sensor unit, which is also resistant to external, mechanical environmental influences.
  • the sensor unit according to the invention for the contactless actuation of an actuating element, in particular a flap of a vehicle or the like, has at least one capacitive sensor element, wherein the sensor element has a wire which is arranged on a carrier element protected from external influences.
  • the wire is wound on the carrier element.
  • the carrier element can serve as a kind of housing for the wire.
  • the wire may be arranged with the support member in a further housing or a shell, so that this unit is securely protected from external influences.
  • winding is understood in the context of the invention not only the rotationally symmetrical winding of a wire, as in a coil, but also the back and forth or the zigzag winding or crosswise winding of the wire using the support element.
  • the sensor unit according to the invention can have at least two or more capacitive sensor elements, which are ideally connected to one another via a common plug. It is also conceivable that a separate plug is used for each sensor element. Usually, the individual sensor elements are arranged side by side or offset in height on the vehicle, thus a movement of a user, for. B. to recognize by an indicated kick or a passing.
  • the sensor unit according to the invention is electrically connected for this purpose with a control device via the existing connector. Ideally, the wire from the individual sensor elements runs directly into the plug, so that connection points or transition pieces can be dispensed with. This can also reduce manufacturing costs. Also falls thus another vulnerability in the sensor unit away. In the already mentioned control unit, several sensor units can also converge and be evaluated there by measurement.
  • control unit can then forward the determined measurement signals to the vehicle electronics or individual safety systems.
  • control unit preferably has a data bus interface, for. B. in the form of the CAN bus.
  • the sensor unit according to the invention can be integrated in the entire vehicle electronics in a simple manner.
  • the wire is arranged endlessly on the support element, so that both ends of the wire at one end of the support element, in particular protruding, are configured.
  • endless is understood to mean that the wire does not end simply on or in the carrier element, but that only one loop or center piece of the wire is completely arranged on the carrier element and the two ends of the wire are ideally connected to the mentioned plug.
  • a plug-in detection with the control unit is also easily possible since a resistance measurement for this purpose gives direct information. Even a permanent breakage monitoring of the capacitive sensor element with the continuous wire, which is arranged endlessly on the carrier element, is thus easily possible.
  • the wire it is also possible within the scope of the invention for the wire to be wound essentially in one plane on the carrier element. Unlike a transformer, which is wound around a core and thus undergoes a 3-dimensional expansion, care is taken in the present winding of the wire that this is as flat as possible and thus designed 2-dimensional.
  • the wire itself has a thickness, which is then available as a thickness for the winding.
  • the winding of the wire extends substantially over the width of the carrier element. This ensures that the measuring range of the wire is not increased in its thickness but on the width of the support element. Depending on the Aufwicklungsmuster the wire can not intersect once or once each winding step.
  • a winding is possible in which an overlapping of the wire is completely avoided during the winding.
  • the winding pattern in the leading (execution) of the wire on the support member next to the Aufwicklungsmuster in the return (return direction) of the wire on the support member is arranged back.
  • the wire over the length of the support element is guided back and forth, wherein a winding of the wire on the support element takes place in the forward and / or reverse direction.
  • a winding of the wire on the support element takes place in the forward and / or reverse direction.
  • the winding is arranged next to the winding in the direction of execution.
  • the windings overlap partially, whereby the winding then receives twice the wire thickness of total thickness.
  • the wire over the length of the support member is guided back and forth, with a winding of the wire on the support element only (meaning exclusively) in the direction of execution and the wire in the return direction in Essentially linear.
  • the returned wire is arranged linearly next to (in a plane to) the winding of the guided wire. As a result, an overlapping of the wire can be prevented again, so that the entire wire is arranged on the carrier element only in one plane and an overlap of the wire, which leads to a greater thickness of the winding, is avoided.
  • the wire used may be a single-core cable, which may in particular have a plurality of copper strands.
  • An ideal cross section of the wire is about 1 mm, but thinner and thicker cross sections are also conceivable. With the thinner wires, however, there is a risk that they break during winding and thus their mechanical strength is quite low.
  • the thicker wires entail a cost penalty as significantly more copper is consumed, but this does not substantially improve the sensor's measurement capability. Thus, essentially only the costs increase due to the increased copper consumption, but not the technical performance of the sensor element.
  • the wire is provided with a continuous insulation layer, in particular made of plastic or rubber. Conveniently, a wire is used according to the standard: FLRY or FLY.
  • the sensor elements used per sensor unit may preferably be configured identical or identical. As a result, the production costs can be further reduced, since the number of pieces per sensor element increase significantly. However, it is also conceivable that two or more sensor elements not identical in construction form a sensor unit. So z. For example, the length of the sensor element, which is essentially predetermined by the length of the carrier element, vary. The width of the respective sensor element of a sensor unit can be designed differently. Although this does not reduce the manufacturing costs, an improved operational capability of the corresponding sensor unit on the vehicle can be achieved. Moreover, it is conceivable within the scope of the invention for at least one capacitive sensor element of the sensor unit to have a shielding in certain areas.
  • the measuring range of the sensor element can be selectively influenced to z. B. disturbances that are otherwise detected by the sensor and actually lie outside the desired measurement range hide.
  • the shield may also be just a wire or a metal foil or a flat band, which has a different electrical potential than the electrical measuring wire of the capacitive sensor element, preferably, the shield is "grounded" or provided with the zero potential.
  • two separate shielding wires can also be provided on a capacitive sensor element, and it is also conceivable that an additional shielding element is used in the sensor unit according to the invention, which is arranged, for example, next to the two capacitive sensor elements or behind the two capacitive sensor elements.
  • the wire is arranged in a meandering manner on the carrier element.
  • the wire sections change its winding direction.
  • the wire is not wound continuously in a direction around the support member, but rather the wire extends in a zig-zag form on the support member.
  • a support member have a neck and a mushroom-like end.
  • the support member is not just a cam, which has a constant cross-section in its longitudinal axis, but by the mushroom-like end of the wire can also be securely held on the support member. Thus, it can be reliably avoided that the wire slips over the open end of the support part away.
  • the carrier element has at least one base plate or grid structure, from which in particular the support parts for fixing the wire protrude. Due to the arrangement of the individual support parts on the base plate, the Aufwicklungsmuster the wire can be specified. It is also conceivable that the support members project ridge-shaped on the support member to guide the wire not only punctiform but over a certain length along the support member.
  • a cover element is used, which can cover at least a portion of the wound wire.
  • the lid member completely cover the carrier element, so that the wire is securely disposed under the lid member and is protected from direct mechanical effects.
  • the entire support element within a housing or a shell, for. B. in the form of a tube, are arranged so as to be protected against external influences. If the carrier element has the above-mentioned base plate, it is also conceivable that the lid member, in particular cohesively or via a hinge or the like, is connected to the base plate. Thus, the corresponding support element itself forms a housing in which the wound wire is securely arranged.
  • the sensor unit can be provided in the sensor unit according to the invention that at least one sensor element with its carrier element and the wire as a whole is flexible, in particular in the longitudinal direction of the carrier element.
  • the sensor element can be flexibly adapted to the respective installation situation of the respective vehicle.
  • the sensor element can be guided over corners and edges on the vehicle, whereby z. B. also the measuring range of the sensor element can be bent by 90 °, if z. B. should take a measurement of the rear side area to the rear of the vehicle.
  • the carrier element itself can be constructed of a flexible base material.
  • the carrier element is designed as an injection molding of a stable plastic.
  • at least one parting line with at least one connecting web can be arranged over the length of the carrier element in order to ensure flexibility of the Carrier element in particular to achieve in the longitudinal direction.
  • several joints can be arranged over the length of a support element, whereby the flexibility is further improved. Through the use of the joints, it is possible to produce an injection molding of only one material, which on the one hand is stable enough to guide and hold the wound wire, and on the other hand is so flexible that the support member or the sensor element of a given shape , z. B. by the inner contour of a bumper of a vehicle, customize.
  • holding means are arranged on the carrier element, with which the sensor can be fastened to the vehicle.
  • the mentioned holding means can enable a material and / or force and / or positive fastening to the vehicle.
  • the holding means are provided directly on the base plate or the cover element or molded onto it.
  • flat plates can be used, whereby z. B. the sensor element can be adhesively bonded or welded to the vehicle.
  • peg-shaped or projection-like locking means may be provided as holding means, whereby the carrier element can be fixed by clipping on the vehicle.
  • a housing-shaped clip for attaching the support element to the vehicle serve, which forms a housing, in sections or in total, for the support element at the same time.
  • a length of the wire may be 1, 2 to 10 times, preferably 1, 8 to 8 times, particularly preferably 2.2 to 5 times as long as a length of the carrier element.
  • a length of the wire in the support element quickly exceed x times the length of the support element.
  • a prefabricated wire is used, this is a total cost less than specially designed sensor elements that are produced only in small quantities to use.
  • the present invention is also directed to a security system for in particular contactless opening and / or closing a flap of a vehicle or the like according to claim 14.
  • At least one sensor unit according to the invention ie according to claims 1 to 13
  • the individual sensor units according to the invention are connected to the safety system by the vehicle via one or more control units.
  • the control units can also be integrated in the security system.
  • the present invention is also directed to a method of manufacturing a sensor unit according to the preamble of claim 15.
  • the following production steps are used in particular successively: a) The carrier element 14 is manufactured as an injection molding element made of stable plastic. b) The finished wire is wound on the carrier element.
  • the sensor element according to the invention does not consist of an injected sensor which is injected during the injection molding process of the carrier element.
  • the production method according to the invention can be used to produce a sensor unit according to the invention.
  • features of the manufacturing method according to the invention also apply to the sensor unit according to the invention and vice versa.
  • Fig. 1 a is a plan view of a sensor unit according to the invention with two capacitive
  • FIG. 1 b enlarged detail detail 1 b from FIG. 1 a, 2 shows a cross section through a capacitive sensor element from FIGS. 1a and 1b,
  • Fig. 3 top view of the partial beginning of a capacitive sensor element from the
  • FIGS. 1 a and 1 b but with the lid elements unfolded, so that the winding of the wire is recognizable
  • FIG. 4 front view of a plug of the sensor unit according to the invention from the
  • FIGS. 1 a and 1 b with the electrical connections for the two sensor elements
  • Fig. 5 is another plan view of the partial beginning of another invention
  • FIG. 7 shows cross section VII-VII through the further sensor element from FIG. 5, FIG.
  • FIG. 8 is a plan view of the end of another sensor element according to the invention, wherein a grid-shaped carrier element is used,
  • FIG. 9 rear view of the part of the further sensor element according to the invention from
  • FIG. 10 shows a top view of the sensor element according to the invention from FIG. 8, but with the additional holding means being folded under the grid-like structure of the carrier element, FIG.
  • FIG. 1 cross section Xl-Xl by the further inventive sensor element of FIG. 10th
  • Fig. 10 and 13 is a side view of a vehicle with a safety system according to the invention and at least one sensor unit according to the invention.
  • FIG. 1 shows a sensor unit 10 according to the invention is shown in a first embodiment in plan view.
  • the sensor unit 10 according to the invention is completely visible with its two sensor elements 1 1, 12.
  • the sensor unit 10 also has other identically constructed or different construction sensor elements 1 1, 12 has.
  • the embodiment of Figures 1 a, 1 b to 4 represents a preferred variant, since in this case the carrier element 14 used is more or less completely closed by individual cover elements 14.4.
  • a continuous wire 13 is arranged, which has its beginning and its end in the plug 17.
  • the corresponding wire 13 runs endlessly on a carrier element 14 of the sensor element 1 1 and 12 respectively.
  • FIG. 1 b shows a detail enlargement of the cutout 1 b from FIG. 1 a.
  • the first three cover elements 14.4 of each support element 14 of the two sensor elements 11, 12 can be seen well.
  • the individual sections of the carrier element 14 are separated by the respective cover elements 14.4 by joints 14.7, wherein the individual regions of the support element 14 are connected to one another via connecting webs 14.8.
  • These connecting webs 14.8 extend diagonally through the parting line 14.7 and are likewise visible in the plan view from FIGS. 1a and 1b, as well as in FIG.
  • FIG. 2 shows, by way of example, a cross section through the first or second sensor element 11, 12.
  • the carrier element 14 serves as a kind of housing for the coiled wire 13.
  • the wire 13 itself has an insulation 13.1, which around the individual souls or wires 13.2 is arranged.
  • the carrier element 14 has a base plate 14.1, on which individual support parts 14.6 are arranged, around which the wire 13 is wound (see FIG.
  • These support members 14.6 are materially connected to the base plate 14.1 and have a neck 14.6a, which merges into a mushroom-like or cap-like end 14.6b. With this end 14.6b, the wire 13 is held down at its deflection point, so that it is arranged more or less on a plane 14.2.
  • the present sensor unit 10 is arranged on the vehicle such that mechanical influences do not act from behind on the base plate 14.1 of the carrier element 14, but from the front onto the cover element 14.4.
  • the functionally essential wire 13, by which the measuring function of the sensor unit 10 is ensured, is arranged protected within the carrier element 14.
  • FIG. 3 shows a top view of the beginning of the carrier element 14, the first two cover elements 14.4 being unfolded so that a view into the interior of the carrier element 14 with the wound wire 13 is visible.
  • the wire 13 is threaded with its first end 13.3 in the support member 14 via a bend protection 14.14.
  • a shrink tube or further insulation tube can be pulled over the two ends 13.3 and 13.4 of the wire 13. Expediently, this additional tube also partially overlaps the bend protection 14.14, as a result of which the first cover element 14.4 is secured to the carrier element 14 in the closed position.
  • the wire 13 After the first end 13.3 of the wire 13 is threaded into the support member 14, it is guided around the first support member 14.6 and then passes to the second support member 14.6, which is arranged on the opposite side of the support member 14. The respective next support parts 14.6 are thus distributed over the width 14.1 1 of the support element 14. In between, the wire 13 changes after each support member 14.6, to which it is directed, its Aufwicklungscardi 16.1. Thus, the wire 13 is wound over the entire width 14.1 1 of the support member 14 to the end of the support member 14. Then, the wire 13 must be returned, which happens in the present case in that the wire parallel and linear to the individual support members 14.6 along becomes what is indicated by the arrow 16.3 for the return direction. The execution is shown by the arrow 16.2.
  • the second end 13. 4 of the wire runs parallel to the first end of the wire 13. 3 from the carrier element 14, the two ends 13. 3, 13. 4 being inserted directly into a plug 17 and electrically conducting there with the corresponding connecting contacts are connected.
  • FIG. 4 shows a front view of such a plug.
  • the two lower contacts 17.1 are used for the electrical contacting of the first sensor element 1 1.
  • the two upper contacts 17.2, however, are provided for the second sensor element 12.
  • the plug itself has a labyrinth seal so that a watertight connection between the plug 17 and a corresponding socket in the vehicle is possible.
  • the plug 17 is equipped with a safety catch, so that the plug 17 is positively locked to the socket and can not be freed by vibration.
  • a middle connection contact is still present (see No. 3), which is eg. B. can be used for a shield. This shield can be arranged within a sensor element 1 1, 12 or serve as an additional external shield for the two sensor elements 1 1 and 12.
  • FIG. 5 shows a further exemplary embodiment of a sensor element 1 1, 12 according to the invention for a sensor unit 10 according to the invention.
  • the beginning of the carrier element 14 is shown, in which the wire 13 with its two ends 13.3, 13.4 on or expires.
  • the wire 13 is thereby guided overlapping in the zig-zag course in execution 16.2 and returned in the return direction 16.3.
  • the winding 16 has approximately twice the width of the wire 13, since just an x-shaped overlap of the zigzag-shaped winding 16 of the wire 13 takes place ,
  • the support element 14 in the specific case does not have a fastened cover element 14.4.
  • a U-shaped clip or clamp on the base plate 14.1 of the support member 14 are arranged.
  • parting lines 14.7 that run transversely to the longitudinal direction 15.
  • FIG. 6 shows the rear view of the support element 14 from FIG. 5, wherein the parting lines 14. 7 can be seen which run alternately from the edge sides of the support element 14 into the base plate 14. However, so that the carrier element 14 is configured in one piece and in one piece, the connecting webs 14.8, which represent an extension of the joints 14.7, are provided.
  • U-shaped recesses 14.9 are provided below the support parts 14.6, through which the wire 13 is visible during its deflection about the support parts 14.6.
  • These recesses 14.9 are provided by manufacturing technology, so that the support member 14 can be made without a slider as an injection molded part in a model. This also makes it possible to minimize the production costs of the carrier element 14.
  • the cross section VII is shown by the support member 14 of Figure 5.
  • the two edge-side support parts 14.6 are also clearly recognizable, by which the wire 13 is deflected during its winding 16.
  • these two support parts 14.6 have a neck 14.6a, which is materially connected to the base plate 14.1.
  • the open end of the support member 14.6 also ends mushroom-like or cap-like in the end 14.6b.
  • the recesses 14.9 are recognizable.
  • a significant difference between the embodiment of Figures 1 a, 1 b to 4 and the present embodiment of Figures 5 to 7 is the fact that the wire 13 in its return direction 16.3 from the support member 14 is not linear, as in the first embodiment, but also wound up in a zig-zag course. As already mentioned, this winding could also run side by side, or seen in FIG. 5, above or below one another on the carrier element 14 or its base plate 14.1. Thus, the measuring range of the corresponding sensor element 1 1, 12 can be widened or doubled in a simple manner.
  • FIGS. 8, 9 and 10 show a further exemplary embodiment of the two sensor elements 1 1, 12 according to the invention.
  • a grid-shaped or lattice-like carrier element 14 is used, which basically works without a base plate 14.1.
  • this grid is designed double Y-shaped and has at its open ends the support members 14.6, around which the wire 13 is wound.
  • FIG. 8 shows a plan view of the sensor element 1 1, 12 according to the invention in the end region of the carrier element 14.
  • the wire 13 is wound over the support member 14 in the execution 16.2 guided and runs in the return direction 16.3 is substantially linear, below the winding 16 of the wire of the execution 16.2.
  • a corresponding groove may be provided in the grid-shaped carrier element 14 for the returned wire 16.3.
  • the execution 16.2 of the wire 13 is serpentine guided by the support members 14.6.
  • the carrier element 14 with the wound wire 13 is highly flexible, both over the width 14.1 1 and over the length 14.12.
  • 14 holding means 14.13 are arranged on the lattice-like structure 14.10 of the support member, which are designed plate-shaped. In the figure 8, this plate-shaped holding means 14.13 protrudes from the lattice-like structure 14.10 upwards.
  • FIG. 9 shows the rear view of the carrier element 14 from FIG. 8.
  • the holding means 14.13 is connected via a film hinge 14.3 with the remaining grid structure 14.10 of the support member 14. By means of this film hinge 14.3, the holding means 14.13 can be folded under the lattice structure 14.10. As a result, the holding means 14.13 is rotated by a total of 180 °.
  • the folded-over holding means 14.13 can be seen, which engages in a form-locking manner via latching means 14.5.
  • the plate-like configuration of the holding means 14.13 serves as an adhesive surface for the sensor element 1 1, 12.
  • the holding means 14.13 not only allow a material-locking attachment, but also a positive and / or non-positive attachment to the vehicle 100th
  • the sections XI and XII are represented by the sensor element 11, 12 of FIG.
  • support parts 14.6 are likewise arranged at the open ends of the y-shaped lattice structure 14.10, which have a stop 14.6a, to which a mushroom-type end 14.6b adjoins.
  • the wire 13 is guided in its return 16.3 below the winding 16 of the execution 16.2 of the wire. In the return direction 16.3, however, the wire is guided linearly under the winding 16 of the wire 13 in the execution 16.2.
  • the sensor element 1 1, 12 of Figures 8 to 12 can be arranged in an additional housing or a hose or a sleeve. Due to the lattice-shaped structure of the carrier element 14, however, a highly flexible sensor element has been achieved.
  • FIG. 13 shows a vehicle 100 with the safety system 1 10 according to the invention and the sensor unit 10 according to the invention and the exemplary sensor elements 1 1 and 12.
  • an actuator 102 is provided in the form of an electromechanical lock, which can be controlled by the sensor unit 10 without contact. If the correct control signal has been recognized by the two sensor elements 1 1 and 12 or has been determined by the corresponding control unit, the actuator 102 can be actuated.
  • the sensor unit 10 according to the invention can also be used to open the side doors or the engine compartment flap or the tank lid or the like.
  • the exemplary windings 16 around the support members 14.6 of the illustrated wire 13 are only possible variants, but they may be varied in a simple manner in which eg every second support member is only used.

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  • Push-Button Switches (AREA)
  • Geophysics And Detection Of Objects (AREA)

Abstract

L'invention concerne une unité de détection (10) destinée à l'actionnement sans contact d'un élément de commande (102), en particulier d'un ouvrant (101) d'un véhicule (100) ou similaire. Cette unité est pourvue d'au moins un élément de détection capacitif (11, 12), l'élément de détection (11, 12) comprenant un fil (13) disposé sur un élément de support (14) en étant protégé des influences extérieures. Selon l'invention, le fil (13) est enroulé sur l'élément de support (14). En outre, l'invention concerne également un système de sécurité (110) permettant l'ouverture et/ou la fermeture, en particulier sans contact, d'un ouvrant (101) d'un véhicule (100) ou similaire, pourvu d'au moins une unité de détection (10) selon l'invention.
PCT/EP2013/072643 2012-11-26 2013-10-29 Unité de détection capacitive WO2014079666A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102012111447.1 2012-11-26
DE102012111447.1A DE102012111447B4 (de) 2012-11-26 2012-11-26 Kapazitive Sensoreinheit sowie Sicherheitssystem mit einer Sensoreinheit und ein Verfahren zur Herstellung einer Sensoreinheit

Publications (1)

Publication Number Publication Date
WO2014079666A1 true WO2014079666A1 (fr) 2014-05-30

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PCT/EP2013/072643 WO2014079666A1 (fr) 2012-11-26 2013-10-29 Unité de détection capacitive

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DE (1) DE102012111447B4 (fr)
WO (1) WO2014079666A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014010004A1 (de) 2014-07-05 2016-01-07 Brose Fahrzeugteile Gmbh & Co. Kommanditgesellschaft, Hallstadt Kapazitive Sensorelektrode für ein Kraftfahrzeug und Fertigungsverfahren für eine solche Sensorelektrode
EP3057234B1 (fr) * 2015-02-11 2018-11-21 Huf Hülsbeck & Fürst GmbH & Co. KG Système de capteurs pour un véhicule automobile
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