DEVICE FOR THE ARRANGEMENT OF SENSORS FOR ELECTRONIC ACTIVATION OF A MOTOR VEHICLE'S FLAP

DE502010017114D1Active Publication Date: 2025-12-24HUF HÜLSBECK & FÜRST GMBH & CO KG
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Patent Information

Application Number
DE502010017114
Authority / Receiving Office
DE · DE
Patent Type
Patents
Current Assignee / Owner
Priority Date
2009-07-17
Filing Date
2010-06-30
Publication Date
2025-12-24
Estimated Expiration
2030-06-30

AI Technical Summary

Technical Problem

Existing sensor arrangements for motor vehicle flaps require differentiation between components with and without sensors, limiting flexibility and variety in vehicle design.

Method used

A form-fit and/or force-fit arrangement of sensors on a carrier body, using clip or snap connections, allows for optional integration of sensors without material bonds or additional fastening elements, enabling flexible installation and use of a carrier body as a basic component with or without sensors.

Benefits of technology

This approach simplifies sensor installation, enhances organizational flexibility, and allows late-stage decision-making on sensor inclusion, reducing the need for separate support bodies and maintaining sensor functionality.

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Description

[0001] The invention relates to an arrangement of a sensor device with at least one sensor for contactless actuation of at least one movable part of a motor vehicle, in particular a flap of a motor vehicle, wherein the sensor is arranged on at least one carrier body on the motor vehicle in order to enable the detection of an object in at least one detection area adjacent to the motor vehicle, so that the actuation of the tailgate can be activated via the detection.

[0002] For the contactless operation of moving parts of a motor vehicle, sensor devices are known that detect the presence and, in particular, the movement of a person in order to recognize the person's desire to open the moving part of the motor vehicle. The moving part of the motor vehicle can be a flap, and in particular a tailgate, and movable window elements are also known, such as a rear window movable within a tailgate. Such elements can then be advantageously opened or closed by a sensor device of this type when manual operation of the tailgate is not possible or is difficult. For the sake of simplicity, the moving part will be referred to as a flap in the following text.

[0003] The object detected by the sensor could be a person approaching the vehicle with the intention of opening the tailgate. The actuation of the tailgate describes both an opening process, for example, when the person wants to place an object into the trunk with both hands, and a closing process, such as when the person has removed an object from the trunk with both hands and then closes the tailgate.

[0004] The sensor device comprises at least one sensor which is arranged on the motor vehicle via a carrier body. A similar mounting of sensors, as defined in the preamble, is disclosed in EP 1 600 336 A1.

[0005] The sensors for tailgate operation are usually mounted on the inside of the bumper, so that the bumper itself forms the support structure. It is known to adhere or laminate the sensors to the inside surface of the bumper, where the sensors are designed as capacitive electrodes in the form of wires or films. The wires or films of the electrode-formed sensors are applied at least over a portion, or preferably over the entire width, of the vehicle's bumper. Consequently, the vehicle's tailgate can be operated from various locations in the immediate vicinity of the rear of the vehicle. Thus, the sensors are an integral part of the rear bumper, being either adhered to the inside of the bumper or attached to it with fasteners.In particular, it is known to use the sensors already in the plastic injection molding process for manufacturing the bumper in order to obtain a one-piece component with overmolded sensors.

[0006] However, this results in the disadvantage that essential components of the motor vehicle, for example the rear bumper, must be differentiated into components that have the sensor device and components that are designed without the sensor device.

[0007] Consequently, a reduction in the variety of individual vehicle components is desirable.

[0008] It is therefore an object of the present invention to provide an arrangement of a sensor device that enables a simplified arrangement of the sensors of the sensor device in the motor vehicle. Furthermore, it is an object of the present invention to provide increased organizational flexibility in the arrangement of the sensor for a sensor device in the motor vehicle.

[0009] This problem is solved starting from an arrangement of a sensor device according to the preamble of claim 1 in conjunction with the characterizing features. Advantageous embodiments of the invention are specified in the dependent claims.

[0010] The invention includes the technical teaching that the sensor is arranged on the carrier body in a form-fit and / or force-fit manner. This achieves the advantage of enabling a simplified arrangement of the sensor(s) on the carrier body. A form-fit and / or force-fit arrangement of the sensor on the carrier body encompasses any form of arrangement that is not based on a material bond between the sensor and the carrier body and that does not require the use of additional fastening elements such as screws, rivets, or the like.

[0011] Preferably, the present form-fitting arrangement of the sensor on the carrier body involves a clip or snap connection, which, according to a further advantage, can even be releasable. The carrier body can be arranged on the motor vehicle, and can also be an integral part of the motor vehicle. An arrangement "on" the motor vehicle also includes an arrangement "in" the motor vehicle, for example, inside behind a rear bumper.

[0012] Consequently, a carrier body can be provided in the motor vehicle that can be used as a basic component for any motor vehicle and can perform a function in the motor vehicle both with and without a sensor device, or at least be present in the motor vehicle. According to a further advantage, it is possible to decide at a very late stage of the motor vehicle assembly whether or not a sensor device should be provided as an additional feature of the motor vehicle, since the sensor device can be optionally incorporated into the motor vehicle without having to decide on the use of other components.

[0013] According to an advantageous embodiment of the carrier body, it can be designed as a separately handleable carrier module such that the carrier module, as a substantially complete functional unit, can be mounted in and / or on the motor vehicle. The carrier module can be based on a receiving body to which further functional units, such as at least one sensor, can be attached. Consequently, the carrier module can only be mounted in a motor vehicle if a sensor arrangement for the contactless actuation of a flap of the motor vehicle is also desired. If this feature is omitted in a motor vehicle, the arrangement of the module as a complete functional unit in the motor vehicle is unnecessary.

[0014] However, the vehicle may have a bumper and / or a structural component, whereby the support body can be formed by the bumper or the structural component itself. Consequently, the bumper and / or the structural component can be equipped with the respective functional units of the sensor device in order to subsequently mount it or the device on the vehicle. As a result, no separate support body is necessary if the support body is formed by a component that is already present in or on the vehicle.

[0015] The sensors can preferably be designed as capacitive sensors, such that they possess or form electrodes on which a certain charge is maintained by the electrical unit. If the capacitive coupling between the electrodes and the exterior of the vehicle changes, for example, if a person moves into the detection range of the sensors, a change in the charge on the electrodes occurs, which can be measured by the electrical unit. In particular, the electrical unit can have a reference charge, so that the comparison between the reference charge, for example in the form of a capacitor in the electrical unit, and the electrodes provides a measurable indication of the presence of an object in the detection range of the at least one sensor.In particular, charge can accumulate in the reference capacitor within the electrical unit, so that the accumulated charge can be converted by the electrical unit into an output signal, on the basis of which the flap of the motor vehicle is opened or closed.

[0016] As a result, it is sufficient to mount the sensors unshielded within, on, or through the carrier body in the vehicle, provided that the carrier body and the bumper do not form metallic components that would shield the sensors. Consequently, the carrier body is preferably made of a plastic material, which, according to a further advantage of the invention, is produced by a plastic injection molding process. Preferably, the sensors are arranged on the side of the carrier body that faces the bumper of the vehicle, so that the sensors are sandwiched between the carrier body and the bumper of the vehicle.

[0017] For the positive locking of the sensor on the carrier body, the carrier body can have at least one positive locking element by means of which the at least one sensor is positively locked to the carrier body, wherein preferably at least one positive locking element is formed integrally with the carrier body. In particular, one or more positive locking elements can be formed integrally with the carrier body, which can be manufactured together with the carrier body in the plastic injection molding process. Furthermore, at least one positive locking element can be formed integrally with the carrier body, wherein a further positive locking element can be designed as a separate component to create a preferably detachable connection of the sensor to the carrier body.Therefore, it is particularly advantageous to provide a first positive locking element which is integrally formed with the carrier body, wherein a further positive locking element may be provided which is designed as a separate part and interacts with the first positive locking element of the carrier body in such a way that the sensor is positively locked to the carrier body.

[0018] According to a further advantageous embodiment, at least one first positive-locking element can be designed as a fastening tab, which in particular projects in an L-shape from a plane of extension of the support body. The L-shaped fastening tab can have two legs, such that the fastening tab merges seamlessly into the support body over one of the two legs. This creates a hook-shaped arrangement, whereby the L-shape can also be curved or uniformly bent, so that the two legs merge into each other in a uniform curvature, resulting in a C-shaped or G-shaped arrangement.

[0019] Following a further development of the design of the positive locking elements, an additional positive locking element can be configured as a counter-holder that projects from the plane of extension of the carrier body and is positioned relative to the mounting tab such that the sensor can be securely positioned between the mounting tab and the counter-holder arm of the carrier body. In particular, the counter-holder can preferably be integrally mounted on the carrier body on the side of the mounting tab, such that the counter-holder covers the opening side of the L-shaped mounting tab. If the counter-holder is located in a position adjacent to the mounting tab, the sensor can be securely positioned between the mounting tab and the counter-holder on the carrier body.

[0020] The sensor can have an elongated, preferably tube-like extension and preferably possess a flexibility such that it can be inserted between the mounting tab and the preferably two counter-supports by means of a manually introduced elastic deformation. If two counter-supports are arranged opposite each other in the sensor's extension direction, adjacent to the mounting tab, three positive locking elements are created, so that the two counter-supports face a single mounting tab. When the flexible sensor is bent in such a way that it can be inserted between the mounting tab and the two counter-supports, the flexible sensor returns to an elongated, straight shape.Consequently, a positive-locking connection of the sensor between the counter-holders and the mounting tab is created, so that it is not possible to detach the sensor from the positive-locking elements without further elastic deformation of the sensor.

[0021] The support body can have an elongated shape in one direction and be arranged in the vehicle such that this lateral direction extends transversely across the vehicle's width. The support body can preferably be integrated parallel to and spaced apart from the rear bumper of the vehicle. Furthermore, a structural component can be incorporated in the rear of the vehicle to absorb stronger mechanical impacts, particularly in the event of a crash. Consequently, the support body can be integrated between the structural component and the vehicle's bumper, so that the sensors are shielded towards the outside of the vehicle only by the support body itself or at least by the bumper.Since the carrier body and the bumper are preferably not made of a metallic material, there is no shielding between the sensors and the exterior of the vehicle that could affect the detection ranges of the sensors.

[0022] Preferably, the sensor can be arranged on the carrier body with its elongated extension in the width direction, so that the sensor extends across the vehicle's width, preferably in the rear area of ​​the vehicle. The sensor can be made of a flexible plastic or rubber material in which an electrode in the form of a wire, cable, or metallic ribbon is integrated. Furthermore, the sensor can have at least one shield to provide grounding opposite the detection area of ​​the sensor in question and to enhance the detection area or to shield it from a further detection area of ​​an adjacent sensor. The plastic or rubber body of the sensor is designed such that at least the electrode, and in particular the shield, are integrated into the sensor material.

[0023] In another possible embodiment of the form-fitting element, it can be designed as a mounting boss with a receiving pocket for the sensor. Furthermore, the mounting boss can be configured to form a clip for the positive locking of the sensor, which acts as a counter-element for clamping the sensor between the receiving pocket and the clip. The receiving cross-section formed between the receiving pocket of the mounting boss and the clip can correspond to the cross-section of the sensor and, in particular, to the cross-section of the plastic body that forms the supporting, structural part of the sensor. Preferably, several mounting bosses can be integrally connected to the carrier body, so that the mounting bosses are also formed directly during the injection molding process for manufacturing the carrier body.The mounting domes can extend out of the plane of extension of the carrier body in order to position the sensor at a certain distance from the basic structure of the carrier body.

[0024] When the sensor is attached to the mounting dome, it can first be inserted into the mounting dome's receiving pocket, and then the clip can be mounted. The clip can have a U-shaped form and barbs on its free legs, which are designed to engage in locking slots on the mounting dome.

[0025] The carrier body can have a first row of positive locking elements extending in its width direction and at least a second row of positive locking elements also extending in the width direction. The rows of positive locking elements preferably form an upper and a lower row in the installation position of the carrier body in the vehicle, in order to accommodate a first, upper sensor and a second, lower sensor. The two elongated sensors preferably extend parallel to each other in their longitudinal extent, so that the positive locking elements are preferably spaced equally apart and present multiple times in at least one row on the carrier body. The sensor can therefore be attached to the carrier body via several positive locking elements, whereby at least two positive locking elements must be present to create a defined arrangement of at least one sensor on the carrier body.In particular, the sensor may also be made of a rigid, inflexible material, so that two positive locking elements may be sufficient to attach the sensor to the carrier body in a positionally fixed and loss-proof manner.

[0026] To reliably detect an object, preferably a person, and to reliably recognize when the vehicle's tailgate is about to be opened, the upper sensor can have a first detection area, essentially designed for horizontal detection in the area beside or behind the vehicle, and the lower sensor has a second detection area, essentially designed for vertical detection in the area under the vehicle. Thus, for example, a person can approach the vehicle, which is initially detected by the upper sensor. If the person moves their leg, or in particular their foot, under the vehicle, a sensor reading from the lower sensor is added to the reading from the upper sensor.This can already be recognized as a request to open the vehicle's hatch, whereby the detection of the person's limb movement and its recording by the sensors can be based on a specific movement pattern in order to avoid false triggering of the vehicle's hatch movement.

[0027] To operate the sensor device according to the invention, an ID transmitter can further be provided, which is operatively connected to and able to communicate with the electrical unit or other vehicle electronics, preferably via a wireless communication link. Such ID transmitters are also known as access authorization systems for a motor vehicle user and are frequently referred to as "keyless go systems." If the user of a motor vehicle possesses such an ID transmitter, it is recognized by a transceiver unit within the motor vehicle. This authenticates the user of the motor vehicle, enabling them, for example, to unlock or start the vehicle. The positive recognition of the ID transmitter and the associated authentication of the person can then be transmitted to the electrical unit.

[0028] According to the invention, the control unit can be further developed such that the tailgate is only activated when the presence of an ID transmitter is detected and positively authenticated by the electrical system. For example, if the person with the ID transmitter is not in the vicinity of the vehicle, the capacitance sensors may detect the movement pattern of a person in the area of ​​the rear bumper of the vehicle, but the control unit will not trigger the opening or closing of the tailgate.

[0029] The tailgate is only activated when the ID transmitter is present and authentication has been successful, and the sensors detect a movement pattern. The ID transmitter is preferably only detected when the upper sensor on the carrier body detects a person approaching, so that the lower sensor is only activated at that point. The authentication check can also be performed before or after the person is detected by one or both sensors.

[0030] The activation of the opening or closing of the tailgate can also be made dependent on whether the vehicle is moving or stationary, with the operation of the tailgate preferably only being activated when the vehicle is stationary and a speed of zero is detected.

[0031] The carrier body is further designed to accommodate an electrical unit, and in particular a control unit, wherein the electrical unit can preferably be arranged on the carrier body by means of positive-locking receiving elements. A receiving plane is provided against which the electrical unit is placed in a flush position. A snap-fit ​​movement is performed, as the receiving elements extend at least partially beyond the receiving plane. This creates a pocket-like receiving geometry, and the electrical unit can be snapped into this receiving geometry.

[0032] According to the invention, fastening means are provided for receiving the electrical unit on the carrier body, wherein the fastening means are designed as screw elements.

[0033] Further measures improving the invention are described in more detail below, together with a description of a preferred embodiment of the invention, with reference to the figures. The figures show: Figure 1 shows an embodiment of a sensor device arrangement with a carrier body on which several sensors can be arranged; Figure 2 shows a first embodiment of fastening means in the form of a fastening tab and a counter-holder, which are arranged on the carrier body and by means of which a sensor can be positively locked to the carrier body; Figure 3 shows a perspective view of the arrangement of two sensors on a carrier body; Figure 4 shows a further view of the arrangement of a sensor on a carrier body with a further embodiment of the positive locking elements; Figure 4a shows a first view of a positive locking element, which is designed as a fastening dome and in which a clip is snapped; Figure 4 shows a fastening dome according to Figure 4afor a further series of positive locking elements for arranging a further sensor, Figure 5 a view of a cross-section through the carrier body with the arrangement of a first sensor for a first detection area and a second sensor for a second detection area, Figure 6a an unstressed view of an electrical unit for arrangement on a carrier body, Figure 6b an unstressed view of a receiving plane and associated receiving means for arranging an electrical unit on the carrier body, and Figure 6c an arrangement of an electrical unit on a carrier body, wherein fastening means in the form of screw elements are provided for the arrangement.

[0034] Figure 1Figure 1 shows an embodiment of a carrier body 20, preferably arranged in the rear of a motor vehicle. The carrier body 20 serves to receive at least one sensor 10. The view shows a first sensor 10 fully in an upper arrangement and a second sensor 10 in a lower arrangement indicated by a dotted line. As the illustration shows, the carrier body 20 has an elongated shape, allowing it to extend across the width of the motor vehicle and, for example, be installed inside the vehicle behind the bumper.

[0035] For the positive locking of the sensors 10 on the carrier body 20, positive locking elements are used, which, according to the present embodiment, are designed in the form of mounting tabs 21, wherein six mounting tabs 21 are provided in a row for both the upper sensor 10 and the lower sensor 10. Each mounting tab 21 is associated with two counter-holders 22, so that the sensor 10 can be positively locked onto the carrier body 20 by the mounting tabs 21 and the counter-holders 22. The positive locking of the sensor 10 on the carrier body 20 by the mounting tabs 21 and the associated counter-holders 22 is in Figure 2 A more detailed explanation.

[0036] Figure 2Figure 1 shows a perspective view of the mounting of a sensor 10 on the carrier body 20. The carrier body 20 has a plane of extension that runs approximately vertically. Furthermore, the sensor 10 has an elongated, tube-like shape and is mounted on the carrier body 20 by means of a mounting tab 21 and two counter-holders 22. Both the mounting tab 21 and the counter-holders 22 are integral parts and made of the same material as the carrier body 20.

[0037] To mount the sensor 10, the sensor is elastically deformed by hand by an installer. The sensor material is preferably made of a pliable, flexible fabric. The counter-supports 22 are arranged adjacent to the mounting tab 21, so that the mounting tab 21 is positioned in an L-shape between the two counter-supports 22. When the sensor 10 is bent so that its tubular body can be threaded between the counter-supports 22 and the mounting tab 21, the sensor 10 can be released after insertion. Consequently, the sensor 10 returns to its original shape through elastic deformation and extends essentially in a straight line.As a result, the sensor 10 is securely and positively locked between the mounting tab 21 and the counter-holders 22 on the carrier body 20.

[0038] Figure 3 Figure 1 shows a perspective view of the arrangement of two sensors 10 on a carrier body 20. A vehicle component 31 is also shown, which can, for example, represent a structural component in the rear area of ​​the vehicle. The carrier body 20 can be attached directly to this structural component 31 of the vehicle by means of fasteners not shown in detail.

[0039] As shown in the illustration, a first sensor 10 is mounted in an upper row of positive locking elements, with three mounting tabs 21 each having associated counter-holders 22. Similarly, a second sensor 10 is arranged in the lower region, which is also attached to the carrier body 20 via a number of mounting tabs 21 with associated counter-holders 22.

[0040] Figure 4Figure 1 shows another embodiment of the positive-locking arrangement of sensors 10 on a carrier body 20. According to this embodiment, positive-locking elements are provided in the form of mounting bosses 23 on the carrier body 20. Clips 25 can be inserted into the mounting bosses to create a positive-locking arrangement of the sensors 10 on the carrier body 20. The upper sensor 10 is shown in detail, while the lower sensor 10 is indicated only by a dashed line. Both sensors are attached to several mounting bosses 23 on the carrier body 20 and secured to the mounting bosses 23 by clips 25. The upper sensor 10 is located in a groove on the carrier body 20, which is divided by a step 34 into an upper carrier section 20a and a lower carrier section 20b. The groove is formed between the step 34 and the carrier section 20a.The lower sensor 10 is arranged on the underside of the lower support section 20b, thus creating a spatial separation between the two sensors. The mounting bosses 23 extend approximately orthogonally from the plane of the support body 20, with a further step 35 being present in the lower support section 20b. When the support body 20 is mounted in the vehicle, the mounting bosses 23 for the upper sensor 10 extend approximately horizontally, and the lower mounting bosses 23 extend approximately vertically in step 35. This results in a directional reception of the sensors 10, with each sensor 10 having a corresponding detection area. The detection area of ​​the upper sensor 10 radiates approximately horizontally from the support body 20, while the detection area of ​​the lower sensor 10 radiates approximately vertically towards the ground on which the vehicle is standing or driving. The arrangement of the sensors on the mounting bosses 23 is shown below. Figure 4a and Figure 4bshown in more detail.

[0041] In the Figures 4a and 4b Mounting domes 23 are shown, each accommodating a sensor 10, which is shown section by section. For the positive locking arrangement of the clip 25, shown in Figure 4a The mounting domes 23 have locking openings 32. The clips 25 have barbs 25a, 25b and a U-shaped form so that, when the barbs 25a and 25b engage in the locking openings 32 of the mounting domes 32, they enclose the sensor 10, which is thus securely positioned between the clip 25 and a receiving pocket 24 on the mounting dome 23. For assembly, the sensor 10 can first be inserted into the receiving pocket 24 on the mounting dome 23, and then the clip 25 can be locked into the locking openings 32 using the barbs 25a and 25b.

[0042] Figure 5Figure 1 shows a cross-sectional view through the carrier body 20. This body contains an upper sensor 10 with a first detection area 26 and a lower sensor 10 with a second detection area 27. The sensors 10 point towards a bumper located on the right side of the carrier body, which is not shown for simplicity. As shown in the illustration, the sensors 10 have a specific contour that essentially corresponds to a semicircular cross-section. A sensor electrode 36 and a shield 37 can be located approximately in the center of the cross-section of the sensor 10, with the sensor electrode 36 and the shield 37 being cast together in a base body that forms a flexible shape for the sensor 10.The specific arrangement of the shield 37 behind the sensor electrode 36 creates two directional detection areas, 26 and 27, which operate independently on the carrier body 20 and extend to the right and downwards through the bumper (not shown). Consequently, for example, the approach of a person to the vehicle can be detected via detection area 26, while movement of a body part is only detected by detection area 27 when the person, for example, moves their foot under the vehicle to enter detection area 27. The sensors 10 are integrated into specific form-fitting geometries within the carrier body 20.

[0043] The Figures 6a and 6bFigure 28 shows the arrangement of an electrical unit 28 on the carrier body 20. For this purpose, the carrier body 20 has a receiving plane 33 against which the electrical unit 28 can be brought into alignment. Receiving means 29 extend over the receiving plane 33. If the electrical unit 28 is first brought into alignment with the receiving plane 33, and then moved downwards in a predetermined direction in the plane of the image by sliding along the receiving plane 33, the receiving means 29 can partially enclose the electrical unit 28, thus enabling a positive-locking arrangement of the electrical unit 28 on the carrier body 20.A locking lug 38 can engage in a locking opening 39 after the electrical unit 28 has been completely displaced on the receiving plane 33, so that on the one hand the receiving means 29 enclose the electrical unit 28 and on the other hand the electrical unit 28 is prevented from slipping out of the positive locking through the receiving means 29 upwards in the image plane, since the locking lug 38 is engaged in the locking opening 39.

[0044] Figure 6cFigure 1 shows another possible arrangement of the electrical unit 28 on the carrier body 20 via fastening means 30, which are designed as screw elements 30. The electrical unit 28 is arranged between two sensors 10, each of which has an electrical connection 40 to the electrical unit 28. According to a further embodiment, the sensors can also have a common connector element for electrical connection with the electrical unit, so that a multi-pole connector, preferably a 6-pin connector, can be used. Another electrical connection 41 connects the electrical unit 28 to another electrical component of the motor vehicle.

[0045] The invention is not limited in its implementation to the preferred embodiment described above. Rather, a number of variants are conceivable, which utilize the solution presented even in fundamentally different designs. All features and / or advantages arising from the claims, the description, or the drawings, including design details, spatial arrangements, and process steps, can be essential to the invention, both individually and in various combinations. It should be noted in particular that the positive locking elements can be designed in different ways, and these different designs can be combined with one another.Consequently, a carrier body 20 can be provided with a combination of mounting tabs 21 and counter-holders 22, which can also be integrally formed with mounting bosses 23 for receiving sensors 10 or, in particular, for receiving only one sensor 10 on a carrier body 20. Furthermore, the carrier body 20 can be designed as a bumper on the motor vehicle, so that the respective positive locking elements for arranging the sensors can be present on the inside of the bumper and can have the same design as shown here on the separate carrier body 20. Reference symbol list

[0046] 10 Sensor 20 Carrier body, carrier module 20a Upper carrier area 20b Lower carrier area 21 Mounting tab 22 Counter holder 23 Mounting dome 24 Mounting pocket 25 Clip 25a Barb 25b Barb 26 First detection area 27 Second detection area 28 Electrical unit 29 Mounting device 30 Fastening device Screw element 31 Vehicle element 32 Detent opening 33 Mounting plane 34 Step 35 Step 36 Sensor electrode 37 Shielding 38 Detent nose 39 Detent opening 40 Electrical connection 41 Electrical connection

Claims

1. Arrangement of a sensor device with at least one sensor (10) for contactless actuation of at least one movable part of a motor vehicle, in particular a flap of a motor vehicle, the sensor (10) being arranged on at least one carrier body (20) on the motor vehicle in order to enable detection of an object in at least one detection area adjacent to the motor vehicle, so that the actuation of the flap can be activated via the detection, wherein the sensor (10) is arranged in a form-fitting and / or force-fitting manner on the carrier body (20), wherein the carrier body (20) is also designed to accommodate an electrical unit (28), characterized in that the electrical unit (28) is arranged with the carrier body (20) via fastening means (30), the fastening means (30) being designed as screw elements (30).

2. Arrangement according to claim 1, characterized in that the carrier body (20) is designed as a carrier module (20) which can be handled individually in such a way that the carrier module (20) can be fastened as a substantially complete functional unit in and / or on the motor vehicle.

3. Arrangement according to claim 1 or 2, characterized in that the motor vehicle has a bumper and / or a structural component, the carrier body (20) being formed by the bumper or by the structural component.

4. Arrangement according to one of the preceding claims, characterized in that the carrier body (20) has at least one positive-locking element via which the at least one sensor (10) can be positively arranged on the carrier body (20), at least one positive-locking element preferably being designed in one piece with the carrier body (20).

5. Arrangement according to claim 4, characterized in that at least one first positive-locking element is designed as a fastening lug (21), which protrudes in particular in an L-shape from an extension plane of the carrier body (20).

6. Arrangement according to claim 4 or 5, characterized in that at least one second positive-locking element is designed as a counter-holder (22), which projects out of the plane of extension of the carrier body (20) and has a position relative to the fastening lug (21) such that the sensor (10) is arranged between the fastening lug (21) and the counter-holder (22) in such a way that it cannot be lost.

7. Arrangement according to one of the preceding claims 5 or 6, characterized in that the sensor (10) has an elongate, preferably tubular extension and preferably has a flexibility such that the sensor (10) can be inserted between the fastening lug (21) and preferably two counter-holders (22) by a manually insertable elastic deformation.

8. Arrangement according to one of the preceding claims, characterized in that the carrier body (20) has a shape which is elongated in a width direction and can be arranged in the motor vehicle in such a way that the width direction extends transversely across the width of the vehicle.

9. Arrangement according to claim 8, characterized in that the sensor (10) is arranged on the carrier body (20) with its longitudinal extension in the width direction of the carrier body (20), so that the sensor (10) extends over the vehicle width, preferably in the rear area of the motor vehicle.

10. Arrangement according to any one of claims 4 and 7 to 9, characterized in that at least one positive-locking element is designed as a fastening dome (23), which has a receiving pocket (24) for receiving the sensor (10).

11. Arrangement according to claim 10, characterized in that the fastening dome (23) is designed for the form-fitting arrangement of a clip (25), which is designed as a counter element for the clamping arrangement of the sensor (10) between the receiving pocket (24) and the clip (25).

12. Arrangement according to claim 11, characterized in that the clip (25) has a U-shaped configuration and has barbs (25a, 25b) on its free U-legs, which are designed to engage in latching openings (32).

13. Arrangement according to one of the preceding claims, characterized in that the carrier body (20) has a first row of positive-locking elements extending in its width direction and at least one second row of positive-locking elements likewise extending in the width direction, the rows of positive-locking elements preferably forming an upper and a lower row in the installation situation of the carrier body (20) in the motor vehicle, in order to accommodate a first, upper sensor (10) and a second, lower sensor (10).

14. Arrangement according to claim 13, characterized in that the upper sensor (10) has a first detection area (26), which is designed essentially for horizontal detection in the area next to or behind the motor vehicle, and wherein the lower sensor (10) has a second detection area (27), which is designed essentially for vertical detection in the area under the motor vehicle.

15. Arrangement according to one of the preceding claims, characterized in that the carrier body (20) is also designed to accommodate an electrical unit (28) and in particular a control unit, the electrical unit preferably being able to be arranged on the carrier body (20) via positively acting receiving means (29).