WO2019185467A1

WO2019185467A1 - Method for controlling a motor-driven closure element arrangement of a motor vehicle

Info

Publication number: WO2019185467A1
Application number: PCT/EP2019/057204
Authority: WO
Inventors: Christoph BRÜCKNER; Sebastian Schödel; Robin Rudolph; Bernd Herthan; Manfred Stenzel; Andreas Lukesch
Original assignee: Brose Fahrzeugteile Gmbh & Co. Kommanditgesellschaft, Bamberg
Priority date: 2018-03-26
Filing date: 2019-03-22
Publication date: 2019-10-03
Also published as: DE102018107184A1

Abstract

The invention relates to a method for triggering a motor-driven closure element arrangement (1) of a motor vehicle, in which a control system (4) and a capacitive distance sensor (5) coupled to the control system (4) are provided, and according to which: operator movements of a body part (6) of an operator (7) are detected by means of the capacitive distance sensor (5); in an activation routine (8), the capacitive distance sensor (5) is monitored for the presence of a predefined activation gesture (9) by means of the control system (4), and the closure element arrangement (1) is triggered in the event of detection of an activation gesture (9); in an authentication routine (10), the authentication of the operator (7) is confirmed or rejected by means of the control system (4), the presence of the confirmation from the authentication routine (10) being a required condition for the triggering of the closure element arrangement (1); and information (14) specific to the activation gesture is viewed on the ground (15) by means of a viewing arrangement (13) coupled to the control system (4). According to the invention, in a preactivation routine (16), the capacitive distance sensor (5) is monitored for the presence of a predefined preactivation gesture (17) at least partially different from the activation gesture (9) by means of the control system (4), and the viewing arrangement (13) is triggered in the event of detection of a preactivation gesture (17), the preactivation routine (16) being carried out irrespectively of whether the authentication routine (10) has been previously carried out.

Description

Method for controlling a motorized flap arrangement

of a motor vehicle

The invention relates to a method for controlling a motorized flap arrangement of a motor vehicle according to the preamble of claim 1 and to a motorized flap arrangement of a motor vehicle according to the preamble of claim 15.

Motorized flap arrangements have gained acceptance in modern motor vehicles as an increase in comfort. Such a motorized flap arrangement is equipped with a flap and a flap drive associated with the flap, so that the flap can be adjusted by means of the flap drive between a closed position and an open position.

The term "flap" is to be understood in the present case. It not only includes tailgates, trunk lids and bonnets, but also side doors, rear doors, load compartment floors or the like. A flap in this sense is pivoting or sliding adjustable.

The control of the flap arrangement, in particular of the flap drive, is often provided gesture-based by means of an activation gesture to further enhance comfort. For this purpose, the motorized flap arrangement is associated with a controller and a sensor arrangement. Such a gesture-based control in itself allows a particularly high level of operating comfort, since a targeted actuation of a control element is no longer required. However, this user-elementless actuation can also be perceived as a loss of comfort, depending on the operator and the application, since the operator must trust that he is carrying out the relevant activation gesture within the detection range of the associated sensor arrangement. This gives rise, in particular in the event that the activation gesture has not been successfully recorded, to the uncertainty on the part of the operator, which is accordingly to be understood as a loss of comfort. In the known method (EP 1 902 912 B1), from which the invention is based, it is provided that successful completion of an authentication routine is followed by unlocking of the relevant motor vehicle lock and subsequently monitoring for the occurrence of an activation gesture is carried out. To assist the operator in carrying out the activation gesture, a light spot on the ground is generated by means of the visualization arrangement, in the area of which the operator gesture associated with the activation gesture is to take place. A disadvantage of the known method is the fact that the monitoring of the occurrence of an activation gesture and thus also the activation of the visualization arrangement is carried out only after the successful completion of the authentication routine. This is technically complex in terms of control and is less efficient with regard to the resulting power consumption, since the ongoing checking of the exterior of the motor vehicle is correspondingly expensive with regard to the presence of an authentication means, such as a radio key.

Other methods of controlling a motorized flap arrangement involve an optical feedback for the operator as confirmation that at least part of an activation gesture has been detected (EP 2 454 435 B1, DE 10 2010 006 211 A1).

The invention is based on the problem of designing and further developing the known method in such a way that the control-related expenditure required for the control of the visualization arrangement is reduced with low power consumption.

The above problem is solved in a method according to the preamble of claim 1 by the features of the characterizing part of claim 1.

According to the proposal, it is initially assumed that in an activation routine the capacitive distance sensor is monitored by means of the control for the presence of a predefined activation gesture, and the damper arrangement is monitored when an activation gesture for the motorized adjustment is detected the flap is controlled. By means of the activation gesture can thus control the flap assembly, which goes hand in hand with a motorized adjustment of parent flap. It is essential, on the one hand, to recognize that the capacitive distance sensor can be used both for the control of the motorized flap arrangement and for the control of the visualization arrangement, as a result of which the control-related expenditure is reduced. On the other hand, it is essential to recognize that the control of the visualization arrangement can take place independently of the authentication of the operator, which likewise reduces the control-technical effort and, at the same time, saves energy in view of the use of a capacitive distance sensor.

Specifically, it is proposed that in a pre-activation routine the capacitive distance sensor be monitored by means of the control for the presence of a predefined pre-activation gesture, which is at least partially different from the activation gesture, and the visualization arrangement is actuated upon detection of a pre-activation gesture. The pre-activation routine is run through regardless of whether the authentication routine was previously run through. In other words, the monitoring takes place on the occurrence of the preactivation gesture, regardless of whether the operator has been authenticated or not.

The proposed solution is therefore completely independent of whether and in what manner an authentication of the operator is made, whereby the proposed solution can be used universally for motor vehicles of different authentication concepts.

Preferably, the visualization of the activation gesture-specific information on the ground, for example, by a projection to be explained, takes place. Alternatively, the visualization can also be provided by a signal light, some kind of monitor or the like. In view of the above-mentioned low power consumption of the capacitive distance sensor, it is proposed according to claim 2 that the pre-activation routine runs continuously in a predefined operating state of the motor vehicle. The operating state can be the normal operating state of the motor vehicle, which is always assumed when there is no emergency, as is the case in the event of a crash, a power failure or the like. Alternatively, the pre-activation routine can also be triggered by the detection of a first approach of the operator to the capacitive distance sensor.

The operator movement associated with the activation gesture is, in a preferred variant of claim 3, a leg movement of the user. Thus, the visualization of the activation gesture-specific information on the ground, ie in the area of the leg of the operator, is particularly appropriate.

As mentioned above, the pre-activation gesture is at least partially different from the activation gesture. This may mean that the pre-activation gesture is completely different from the activation gesture. In the particularly preferred embodiment according to claim 4, however, the preactivation gesture is part of the activation gesture. By way of example, the preactivation gesture can be defined as a first section of the operator movement associated with the activation message, so that to some extent an indication of the activation gesture is recognized as a preactivation gesture. This is advantageous insofar as the operator is already supported at the beginning of the activation gesture by the proposed visualization.

The further preferred embodiments according to claims 5 to 8 concern the consideration that the proposed visualization should be triggered if the predefined activation gesture was only partially completed. Although such a partially completed activation gesture does not lead to the control of the flap assembly, but is with some probability a failed attempt a complete activation gesture. It is therefore appropriate to assist the operator in such a case with the proposed visualization. The preferred variant according to claim 5 allows a particularly simple detection of a failed activation attempt. Here, in one alternative, the activation gesture is defined by a number of activation criteria and the pre-activation gesture is defined by a number of pre-activation criteria. In this way, if the criteria are suitably defined, it can be easily defined to what extent the preactivation order should correspond to the activation gesture. One way of defining the criteria is according to claim 7, in that the pre-activation criteria provide a subset of the activation criteria.

The activation criteria and / or the pre-activation criteria preferably represent movement sections of the respective associated operator movement. The criteria may relate to courses of motion, accelerations, speeds or the like (claim 7).

A particularly efficient way of avoiding improper use of the visualization arrangement, for example by the abusive activation of the visualization arrangement several times in succession, is shown by the preferred embodiment according to claim 8. Upon fulfillment of the local activation criterion, activation of the visualization arrangement is blocked for a predetermined absence so that an excessive load on the on-board network is avoided due to the improper use of the visualization system. According to claim 9, a preferred definition of the false activation criterion is that at least one pre-activation gesture, preferably a predetermined number of pre-activation gestures, has been detected without an activation gesture having been detected or without confirming the operator's authentication. This leads to a particularly robust embodiment against an abusive application and can be implemented in terms of control technology simply by implementing a counter for the detected pre-activation gestures.

Another preferred use of detecting a above mis-activation criterion is the subject matter of claim 10, after which a predetermined repetition of the occurrence of the mis-activation criterion becomes a corresponding one Information message leads. Alternatively, this can also lead to a modification of the definition of the activation gesture, so that the occurrence of further false activation criteria is avoided. The further preferred embodiments according to claims 11 to 13 relate to advantageous modes of operation for the visualization arrangement. The above-mentioned projection of the activation gesture-specific information on the ground according to claim 10 can be realized in a robust manner with today's LED technology.

An interesting variant for triggering the authentication routine is the subject matter of claim 14, according to which the detection of the Voraktivierungsge- ste triggers the passage of the authentication routine. In view of the fact that usually a considerable time elapses between the detection of the preactivation gesture and the execution of the activation gesture, this preferred variant leads to an optimal utilization of the already existing "idle time".

According to another teaching according to claim 15, which has independent significance, a motorized flap arrangement of a motor vehicle is claimed as such, which is set up to carry out a proposed method. All statements on the proposed procedure may be referred to in this respect.

In the following the invention will be explained in more detail with reference to a drawing showing only one exemplary embodiment. In the drawing shows

Fig. 1 a) the rear portion of a motor vehicle with a proposal, motorized flap assembly and

b) in a very schematic representation an activation gesture for the

Door assembly

2 shows a proposed visualization of an activation gesture-specific information

a) in a first embodiment,

b) in a second embodiment and 3 shows an exemplary sequence of individual routines in the context of a proposed method. The proposed method is used to control a motorized flap assembly 1 of a motor vehicle. The flap arrangement 1 has a flap 2 and a flap drive 3 assigned to the flap 2. The flap drive 3 is used for the motorized adjustment of the flap 2 between a closed position shown in solid line in FIG. 1 a) and an open position shown in dashed line in FIG. 1 a). Here, and preferably, the flap 2 is a fleck flap of the motor vehicle. However, the term "flap" is to be understood in the present case. In that regard, reference may be made to the introductory part of the description. All versions of a flap 2 designed as a tailgate apply correspondingly to all other types of flaps.

The flap arrangement 1 is associated with a controller 4 and a capacitive distance sensor 5 coupled to the controller 4, whereby operator movements of a body part 6 of an operator 7 are detected by means of the capacitive distance sensor 5.

The capacitive distance sensor 5 may comprise a single sensor element or two or more sensor elements. The mode of operation of such a capacitive distance sensor is based on the fact that a capacitance results between a measuring electrode arrangement and ground potential or a further measuring electrode arrangement that changes as a result of the approach of a body part of the operator 7. Due to this capacitance change, distance values can be determined in a simple way and with low power consumption.

In the present case, the capacitive distance sensor 5 is used for gesture recognition. In detail, it is provided that in an activation routine 8, the capacitive distance sensor 5 is monitored by means of the controller 4 for the presence of a predefined activation gesture 9 and the flap arrangement 1 is actuated upon detection of an activation gesture 9 and thus the flap 2 is adjusted by a motor , In order to prevent unauthorized motorized adjustment of the flap 2, an authentication routine 10 is provided, in which the authentication of the operator 7 is confirmed or denied by the controller 4. The presence of the confirmation from the authentication routine 10 is a necessary condition for the activation of the flap arrangement 1. Numerous possibilities are conceivable for the execution of the authentication routine 10. Here and preferably, the operator 7 carries an electronic key 11 with him, which may be for example a radio key or the like. In the motor vehicle is an authentication device 12, which communicates here and preferably radio-based with the electronic key 11. In the context of this communication, authentication data are exchanged, on the basis of which the authentication of the operator 7 by means of the controller 4 is confirmed or rejected. Other types of authentication of the operator 7 are conceivable.

Noteworthy in the proposed solution is the fact that a provided with the controller 4 visualization device 13 is provided by means of an activation gesture-specific information 14 is visualized. This visualization is preferably carried out on the ground 15, as will be explained. Two preferred and still to be explained, activation gesture-specific information 14 are shown in Fig. 2a), b).

It is essential that, in a preactivation routine 16, the capacitive distance sensor 5 is monitored by means of the controller 4 for the presence of a predefined pre-activation gesture 17 which is at least partially different from the activation gesture 9, and the visualization arrangement 13 is detected when a preactivation gesture 17 is detected is controlled. It is also essential that the pre-activation routine 16 is run through independently of whether or not the authentication routine 10 was previously executed. This means that the visualization arrangement 13 is activated upon detection of the preactivation gesture 17, irrespective of whether the confirmation of the authentication of the operator 7 is present or not. In view of the above-mentioned, low power consumption of the capacitive distance sensor 5, it is here and preferably provided that the Pre-activation routine 16 runs continuously in a predetermined operating state of the motor vehicle. The predetermined operating state is preferably the normal operating state in which the motor vehicle is outside an emergency mentioned above. Alternatively, however, it may also be provided that the pre-activation routines 16 are triggered by the detection of a first approach of the operator 7 to the capacitive distance sensor 5. Other ways of triggering the pre-activation routine 16 are conceivable. As mentioned above, the operator movement associated with the activation gesture 9 is preferably a leg movement or an arm movement of the operator 7. Here and preferably, the operator movement associated with the activation gesture 9 is a kick movement of a leg 18 of the operator 7. By "kicking motion" is meant a reciprocation of a leg 18 of the operator 7 following the general usage.

The pre-activation gesture 17 is preferably defined as part of an activation gesture 9, preferably as a first section of the operator movement associated with the activation gesture 9. FIG. 1 b) shows that the pre-activation gesture 17 is to a certain extent an indicated activation gesture 9, that is to say an indicated kick movement of the relevant leg 18 of the operator 7.

More generally, it is preferable to detect when there is an operator movement which, while approaching the activation gesture, is insufficient to qualify the operator movement as an activation gesture 9, which speaks for an unsuccessful attempt at an activation gesture 9. For this purpose, it is preferably proposed that the activation gesture 9 is defined by a number of activation criteria 19a-i and that the pre-activation gesture 17 is defined by a number of pre-activation criteria 20a-c. As a result, the similarity between the detected operator movement with the predetermined activation gesture 9 can be determined from the number of matching criteria. Against this background, it is preferable that the pre-activation criteria 20a-c provide a subset of the activation criteria 19a-i. In which 1 b) and, to that extent, preferred exemplary embodiment, the pre-activation criteria 20a-c correspond to the activation criteria 19a-c. Alternatively or additionally, it may be provided that the pre-activation statement 17 is defined by the occurrence of a minimum proportion, in particular of more than 10%, of the activation criteria 19a-i.

For the definition of the activation and Voraktivierungskriterien 19a-i, 20a-c, depending on the application, different variants are conceivable. Here, and preferably, the operator movement associated with the activation gesture 9 comprises a plurality of sequential movement sections, each of which is represented by an activation criterion 19a-i. Alternatively or additionally, it is the case that the operator movement assigned to the pre-activation gesture 17 likewise comprises a plurality of sequential movement sections, which are each represented by a pre-activation criterion 20a-c. The activation and preactivation criteria 19a-i, 20a-c thus each represent a section of an operator movement. These can be specific position information. In a particularly preferred embodiment, however, the criteria are an abstract description of a part of the relevant gesture.

With the proposed solution, a visualization of an activation gesture-specific information 14 can be generated with simple control technology and at the same time energy-saving means if this is required by the operator. In addition, the definition of preactivation criteria 20a-c avoids accidental visualization, for example by passing passers-by or the like.

In order additionally to prevent misuse of the visualization arrangement 13, in particular a deliberate, repeated activation of the visualization arrangement 13, the realization of a false activation routine is also preferably proposed. For this purpose, a false activation criterion is defined, which represents a criterion for abusive activation of the visualization arrangement. Upon detection of the occurrence of a Fehlaktiviererkriteriums by the controller 4, the Fehlaktivierungsroutine is run, in which a control of the visualization device 13 is preferably locked for a predetermined absence of time. In particularly preferred embodiments It is provided that the control of the visualization arrangement 13 is released again after the expiry of the absence time. This procedure is appropriate since the function of the visualization arrangement 13 is merely a comfort function whose locking does not cause immediate damage. The monitoring of the operator movement for the occurrence of an activation gesture 9 is preferably not affected by the blocking of the visualization arrangement 13.

Different variants are conceivable for the definition of the false activation criterion. Here and preferably, the incorrect activation criterion is defined by the fact that at least one preactivation gesture 17, preferably a predetermined number of preactivation gestures 17, has been or has been detected without an activation gesture 9 having been detected or without the authentication of the operator 7 was confirmed. In both cases, the activation of the visualization device 13 is likely to be an abusive activation. Other ways of defining the Fehlaktivierungskriteriums are conceivable.

The above definition of a false activation criterion can also be used to optimize the detection of an activation gesture. For example, provision may be made for activation-gesture-specific information to be visualized in the form of a flashing message when a predetermined repetition of the occurrence of the false activation criterion in the false activation routine is detected. A visualization can then be, for example, a natural language term o. The like visualized on the ground 15. Alternatively or additionally, when a predetermined repetition of the occurrence of the false activation criterion is detected, the definition of the activation gesture is modified. The thus modified activation gesture is then adjusted to the gestures made by the operator that led to the detection of the false activation criterion.

In the embodiments of the proposed method illustrated in FIG. 2, the activation gesture-specific information 14 is projected onto the ground 15 in each case by means of the visualization arrangement 13. In the representation according to FIG. 2 a), the activation gesture-specific information 14 is a geometric extension 21 of the activation tivierungsgeste 9 associated operator movement. The operator 7 is thus indicated in which surface area above the ground 15 the activation gesture 9 is to be executed. Alternatively or additionally, the activation gesture-specific information 14 may be the detection area or a part of the detection area of the capacitive distance sensor 5. As an alternative or in addition, the activation-item-specific information 14 may be a direction of the operator movement assigned to the activation gesture 9. This is indicated in Fig. 2b) by a series of projected arrows 22.

Other modifications or alternatives for the visualization of the activation gesture-specific information 14 are conceivable. For example, provision may be made for the activation gesture-specific information 14 to be displayed in different colors as a function of the respectively detected gesture by means of the visualization arrangement 13. Preferably, the progress of completion of the activation gesture 9 can be indicated by the visualization in different colors.

From the above, there are various possibilities for triggering the authentication routine 10. H it and preferably it is such that the detection of the pre-activation gesture 17 by means of the controller 4, the authentication routine 10 is passed. This means that the pre-activation routine 16 is the sufficient condition for the authentication routine 10 to run. As shown in FIG. 3, the confirmation of the authentication of the operator 7 from the authentication routine 10 is a necessary condition for the activation routine 8 to proceed. This can be seen very schematically from the representation according to FIG. 3, in which the preactivation routine 16, the activation routine 8 and the authentication routine 10 are each represented as "If-Then-Else query" in the sense of a shortened representation.

The sequence according to FIG. 3 is only one exemplary sequence of the routines of the proposed method. If, as part of the pre-activation routine 16, an operator movement is qualified as a preactivation gesture 17, the activation 23 of the visualization arrangement 13, in this case a projection of the activation gesture-specific information 14 onto the ground 15, occurs. As long as this detection is not present, the pre-activation routine 16 is run through again.

Following the activation 23 of the visualization device 13, the authentication routine 10 is run through. As long as the authentication of the operator 7 is denied, a return to the pre-activation routine 16 is provided. If the authentication of the operator 7 is confirmed in the authentication routine 10, then the activation routine 8 is run, which leads to a control 24 only when the activation gesture 9 is detected and otherwise generates a return to the preactivation routine 16.

It can be seen from the exemplary illustration according to FIG. 3 that the pre-activation routine 16, which can be easily implemented in terms of control engineering and energy-saving, can be used to trigger the authentication routine 10. In principle, however, it is also conceivable that the authentication routine 10 is triggered independently of the preactivation routine 16.

It should also be pointed out that the visualization arrangement 13 can be used not only as support for the operator 7 during the execution of the activation gesture 9, but also as feedback for the operator 7 regarding a successful or unsuccessful detection of the activation gesture 9. In that regard, the visualization device 13 can also be used in the sense of "learning" the operator 7. According to another teaching, which has independent significance, a motor-driven flap arrangement 1 of a motor vehicle described above is claimed as such. The flap arrangement 1 has a controller 4 and a capacitive distance sensor 5 coupled to the controller 4, wherein by means of the distance sensor 5 operator movements of a body part 6 of an operator 7 can be detected.

Essential for the further teaching is the fact that the controller 4 is set up to carry out a proposed method explained above. This means, preferably, that the controller 4 is programmed with corresponding software which is dependent on the execution of a designed according to the method. In that regard, reference may be made to all comments on the proposed procedure.

Claims

claims

1. A method for controlling a motorized flap arrangement (1) of a motor vehicle, wherein a controller (4) and one with the controller (4) coupled, capacitive distance sensor (5) are provided, wherein by means of the capacitive distance sensor (5) operator movements of a body part ( 6) of an operator (7) are detected,

wherein in an activation routine (8) the capacitive distance sensor (5) is monitored by the controller (4) for the presence of a predefined activation gesture (9) and the flap arrangement (1) is actuated upon detection of an activation gesture (9),

wherein in an authentication routine (10) the authentication of the operator (7) is confirmed or denied by means of the controller (4) and wherein the presence of the confirmation from the authentication routine (10) is a necessary condition for the activation of the flap assembly (1) .

wherein an activation gesture-specific information (14), in particular on the ground (15), is visualized by means of a visualization arrangement (13) coupled to the control (4),

characterized,

in a preactivation routine (16), the capacitive distance sensor (5) is monitored for the presence of a predefined preactivation gesture (17) which is at least partially different from the activation gesture (9) by means of the control (4) and the visualization arrangement (13) is monitored on detection of a Pre-activation gesture (17) is controlled and that the pre-activation routine (16) is run regardless of whether previously the authentication routine (10) has been passed.

2. The method according to claim 1, characterized in that the Voraktivierungsroutine (16) in a predefined operating condition of the motor vehicle constantly runs, or that the Voraktivierungsroutine (16) by the detection of a first approach of the operator (7) to the capacitive distance sensor (5 ) expires.

3. The method according to claim 1 or 2, characterized in that the activating gesture (9) associated with the operator movement is a leg movement o- an arm movement of the operator (7), preferably that of the actuator vierungsgeste (9) associated operator movement is a kick movement of a leg (18) of an operator (7).

4. Method according to one of the preceding claims, characterized in that the preactivation gesture (17) is a component of the activation gesture (9), preferably in that the preactivation gesture (17) defines as a first section the operator movement associated with the activation gesture (9) is.

A method according to any one of the preceding claims, characterized in that the activation gesture (9) is defined by a number of activation criteria (19a-i), and / or the pre-activation gesture (17) is defined by a number of pre-activation criteria (20a-c ) is defined.

A method according to claim 5, characterized in that the pre-activation criteria (20a-c) provide a subset of the activation criteria (19a-i).

7. The method according to claim 5 or 6, characterized in that the activating gesture (9) associated with operator movement comprises a plurality of sequential movement sections, each of which is represented by an activation criterion (19a-i), and / or that of the Voraktivierungsgeste (17) associated operator movement comprises a plurality of sequential movement sections, which are each represented by a pre-activation criterion (20a-c).

8. The method according to claim 1, wherein a false activation criterion is defined, and in that a false activation routine is run when the false activation criterion occurs, preferably that activation of the visualization arrangement (13) for a predetermined absence is blocked in the false activation routine Expiration of the absence time the control of the visualization device (13) is released again.

9. The method according to claim 8, that the false activation criterion is defined by the fact that at least one pre-activation gesture (17), in particular a a predetermined number of pre-activation gestures (17) were detected without an activation gesture (9) being detected or without the authentication of the operator (7) having been confirmed.

10. The method according to claim 8 or 9, characterized in that in the

Detection of a predetermined repetition of the occurrence of the false activation criterion in the false activation routine, an activation gesture-specific information is visualized in the form of an information message, and / or that the definition of the activation gesture (9) is modified when a predetermined repetition of the occurrence of the false activation criterion is detected.

11. The method according to any one of the preceding claims, characterized in that the activation gesture-specific information (14) by means of the visualization device (13) is projected onto the ground (15).

12. The method according to any one of the preceding claims, characterized in that the activation gesture-specific information (14) is a geo metric extent (21) and / or direction (22) of the activation gesture (9) associated with the operator movement.

13. The method according to any one of the preceding claims, characterized in that by means of the visualization device (13) the activation gesture-specific information (14) in dependence on the respective detected Ges te displayed in different colors.

14. The method according to any one of the preceding claims, that upon the detection of the pre-activation gesture (17) by means of the controller (4) the authentication routine (10) is executed.

15. Motor-type flap arrangement of a motor vehicle, wherein the flap arrangement (1) comprises a controller (4) and a controller (4) coupled, capacitive distance sensor (5), wherein by means of the capacitive distance sensor (5) operator movements of a body part (6) of a Operator (7) are detectable,

characterized, in that the controller (4) is set up to carry out a method according to one of the preceding claims.