Method and device for automatically opening and closing at least one window pane of a motor vehicle

Abstract

Device for automatically opening and closing at least one window pane (40) of a motor vehicle, wherein the device comprises: at least one camera (10) configured to provide camera data that includes images of the motor vehicle's surroundings; at least one sensor unit (20, 21) configured to provide data for determining the position of the motor vehicle and / or the speed of the motor vehicle; and a control unit (30) that is configured to process the data from at least one camera (10) and at least one sensor unit (20, 21) and thereby • to recognize whether the motor vehicle is approaching a parking garage, or • to recognize whether the motor vehicle is approaching a toll plaza, or • to recognize whether the vehicle is approaching a car wash, or • to recognize whether the vehicle is approaching a ticket booth, or • to recognize whether the vehicle is approaching a drive-through restaurant, and depending on whether it has been detected that the motor vehicle is approaching a parking garage, toll plaza, car wash, ticket booth or drive-through restaurant, to decide whether to open at least one window pane (40), wherein the control unit (30) is further configured based on the decision to open at least one window pane (40).

Description

[0001] The present invention relates generally to a method and a device for automatically opening and closing at least one window pane of a motor vehicle, in particular to the automatic opening and closing of at least one window pane of a motor vehicle using camera data in conjunction with sensor data.

[0002] Document EP 1 526 242 B1 discloses a method for controlling the movement of a window pane of a side door of a motor vehicle. In particular, the document describes a method in which a window pane is automatically moved into an intermediate position depending on the movement of the side door. The intermediate position is characterized by the side window being located, at least in part, with its upper edge in a sealing gap located on the side door sill. This is intended to reduce rattling noises when the door is closed.

[0003] Document DE 42 03 512 C1 relates to a device for lowering and raising a window pane of a motor vehicle door, comprising a window lift device with a drive motor and a control device that can be actuated via at least one operating switch in the vehicle interior. The control device can also be actuated from the outside of the vehicle using an external handle button of the door lock in such a way that, after unlocking the vehicle door and actuating the handle button for longer than a predetermined waiting time of approximately 1 second, the window pane is lowered to its lower position. This is intended to make it possible to enter the vehicle with the window pane lowered, which is intended to facilitate entry, particularly in tight parking spaces and with frameless windows.

[0004] The document DE 10 2014 017 748 A1 relates to a protective device for a motor vehicle with at least one opening through which the interior of the motor vehicle is connected to its surroundings, and with a closing device with a closing element that can be automatically adjusted by means of an adjusting device, e.g. a window element that can be adjusted between a closed position closing the opening and an open position at least partially releasing the opening. The protective device is connected to the adjusting device of the automatically adjustable closing element and has a sensor device for detecting travel by the motor vehicle along a route with a structure that at least partially covers the route, in particular travel by the motor vehicle through a tunnel, in response to which the closing element can be adjusted.

[0005] Document DE 10 2013 020 413 A1 relates to a driver assistance device for a vehicle with a position detection unit for detecting a vehicle position. The position detection unit is coupled to at least one control unit for controlling at least one vehicle function, e.g., an opening that can be opened by means of a movable vehicle window. The at least one control unit is coupled to at least one input unit, with which it is possible to manually specify which vehicle function(s) is / are to be executed automatically at a given vehicle position.

[0006] The document DE 196 19 643 C1 relates to a navigation system for a vehicle in which, among other things, data on upwardly covered road network areas, i.e. in particular data on their exact location and length, are stored. In conjunction with the ongoing vehicle position determination, the navigation system can thus recognize when such an upwardly covered road network area is about to be entered. As soon as this is the case during a journey, the navigation system sends a corresponding message to a control unit, which then automatically controls certain vehicle components in a tunnel driving function in order to switch on the vehicle lights, close the vehicle openings, switch the air conditioning system to recirculation mode and / or switch the audio system to sound recording mode. The vehicle thus automatically assumes the appropriate operating state for driving in the upwardly covered road network area, e.g.a tunnel, an underpass, a parking garage, or an underground car park, without the driver having to pay attention to whether the tunnel driving function is activated. This is intended to achieve a particularly high level of operating comfort for vehicles with navigation systems and tunnel driving functions when driving through such road network sections.

[0007] Document DE 10 2015 000 541 A1 relates to an assistance device for a vehicle occupant of a vehicle, which has at least one identification device designed to identify at least one vehicle occupant and / or at least one object arranged within the vehicle. Furthermore, the identification device comprises at least one optical detection device for detecting the at least one vehicle occupant and / or the at least one object and is coupled to a control unit designed to control vehicle functions of the vehicle in such a way that at least one vehicle function can be controlled depending on the at least one identified vehicle occupant and / or depending on a number of vehicle occupants and / or depending on the identified object.

[0008] Document DE 20 2007 014 541 U1 describes a window pane with a window drive that is connected or connectable to an operating device of a vehicle. The operating device monitors the vehicle's driving state or its surroundings and, in the event of a detected hazard, automatically actuates an electric motor to preventively close or, under certain circumstances, open the window. The operating device is connected to a detector device that detects critical driving states or objects in the surroundings. Radar or laser devices, cameras operating in the visual range, or UV or IR cameras can be used, in particular, to detect objects in the vehicle's surroundings. Document DE 10 2014 003 909 A1 discloses a motor vehicle with at least one door with a frameless window pane that can be automatically and reversibly lowered from a raised, closed position into the door via a drive, as well as a detection device for detecting any obstacle in the vicinity of the motor vehicle. The window pane can be automatically lowered upon detection of an obstacle in the opening range of the door during a door opening process. Obstacle detection can be performed by evaluating images captured by a camera.

[0009] Document DE 10 2004 005 688 A1 relates to an anti-pinch system for a window lift system in a motor vehicle, comprising a controller that can control a drive motor for a window pane and a detection unit that provides the controller with an image from which an obstacle in the path of the window pane can be detected. The detection unit, which can be a camera, for example, is part of an environmental detection system that can detect, for example, an unfamiliar vehicle in the blind spot of the driver's own vehicle.

[0010] The object underlying the present invention is to provide a method and a device that eliminates the problems of known systems, e.g., to increase the reliability of the automatic opening and closing of a window in a motor vehicle and / or to increase the safety and efficiency of the system. This object is achieved with the features of the independent patent claims. The dependent patent claims relate to further aspects of the invention.

[0011] According to one aspect of the present invention, a device for automatically opening and closing at least one window pane of a motor vehicle is provided, wherein the device comprises at least one camera configured to provide camera data, in particular to create images of the surroundings of the vehicle, at least one sensor unit configured to provide data for determining a position of the vehicle and / or for determining a vehicle speed, and a control unit configured to process the data of the at least one camera and the at least one sensor unit and in the process • to recognize whether the vehicle is in a parking garage or • to detect whether the motor vehicle is approaching a toll station, or • to detect whether the vehicle is approaching a car wash, or • to detect whether the motor vehicle is approaching a ticket booth, or • to detect whether the motor vehicle is approaching a drive-through restaurant, and depending on whether it has been detected that the motor vehicle is approaching a parking garage, a toll station, a car wash, a ticket booth or a drive-through restaurant, to decide whether the at least one window pane should be opened, wherein the control unit is further configured to open the at least one window pane based on the decision.

[0012] The at least one sensor unit has a receiver for, in particular, electromagnetic signals and / or optical and / or acoustic signals. For example, a receiver has an ultrasonic sensor, an infrared sensor, a distance sensor, a position sensor, a GPS sensor, a speed sensor, or a microphone. A microphone is preferably suitable for responding to the driver's commands or for recording external noises, in particular announcements at parking garage barriers or the like. It is particularly advantageous if the at least one sensor unit has a speed sensor and / or a GPS sensor. In other words, it is particularly advantageous to evaluate the camera data together with data from a speed sensor and / or a GPS sensor.This allows the control unit's output to be improved, and the event detected using the camera data and the data from the speed sensor and / or GPS sensor can be verified for accuracy. Within the context of the present invention, a speed sensor is understood as a unit capable of determining the speed of the vehicle. This is preferably done using a tachometer, which determines the vehicle's speed based on the wheel speed. In other words, a speed sensor preferably comprises a tachometer and a computing unit for determining the speed.

[0013] Preferably, the sensor unit is a unit already present in the motor vehicle, in particular a navigation unit, a speedometer, a tachometer, etc. In other words, it is preferable to use the existing sensors / electronics / map material and thus avoid installing or using additional control units. However, the present invention is not limited to this. The sensor unit can also receive data from an external unit (not part of the motor vehicle).

[0014] The device described above can further comprise a storage unit for storing predetermined camera data, in particular images of vehicle surroundings, and / or data from the sensor unit. The storage unit is preferably also suitable for storing relationships between the data and conditions associated with the opening or closing of the at least one window pane. The control unit is preferably configured to decide whether the at least one window pane should be opened based on the association of data stored in the storage unit.

[0015] Images of vehicle surroundings are preferably images of objects such as information signs, road signs, barriers, outlines of vehicles, road markings, toll booths, parking garage exits, parking garage entrances, etc.

[0016] The device preferably has a notification unit. The notification unit can be configured to inform a driver of the motor vehicle that the control unit has decided to open the at least one window. The control unit is preferably configured to open the window only after confirmation by the driver. This allows the driver to be informed when the at least one window is about to be opened. The driver is thus informed that an action on his part, e.g., in the case of opening a window in a parking garage, is imminent. Secondly, for safety reasons, the driver can be protected from an uncontrolled opening of the at least one window.

[0017] According to a further aspect of the present invention, a method for automatically opening and closing at least one window pane of a motor vehicle is provided, the method comprising the following steps: providing image data comprising images of the surroundings of the motor vehicle using at least one camera; providing sensor data using at least one sensor unit; processing the image data and the sensor data using a control unit • to detect whether the motor vehicle is approaching a parking garage, or • to detect whether the motor vehicle is approaching a toll station, or • to detect whether the vehicle is approaching a car wash, or • to detect whether the motor vehicle is approaching a ticket booth, or • to detect whether the motor vehicle is approaching a drive-through restaurant;

[0018] Deciding whether to open or close the at least one window depending on whether it has been detected that the motor vehicle is approaching a parking garage, toll booth, car wash, ticket booth or drive-through restaurant; and opening the at least one window in accordance with the decision made.

[0019] Providing and processing the sensor data may include using at least one of the following sensor data: ultrasound data, infrared data, distance data, position data, GPS data, speed data, and audio data. Particularly preferred is receiving and processing the sensor data from speed data and / or position data, preferably GPS data.

[0020] The method may further comprise a step of associating predetermined camera data and sensor data with the opening of the at least one window pane using a storage unit, wherein the decision is preferably based on the associated data.

[0021] It is also advantageous that the method further comprises a step for notifying a driver of the motor vehicle that the control unit has decided to open the at least one window pane. Preferably, the at least one window pane is opened only after an additional step for the driver to confirm the opening.

[0022] In other words, according to the invention, the vehicle detects in advance, via the vehicle's sensors (including cameras, ultrasonic sensors, distance sensors, etc.) and / or highly accurate navigation data, which are also required for autonomous driving, when it is approaching a parking garage / toll station, etc. This preferably occurs several kilometers in advance using existing sign recognition. To ensure this, the vehicle's speed is preferably also taken into account. If this falls below a threshold of, for example, 15 km / h and the sensor or map data registers a corresponding payment station, the driver's window is automatically lowered without the driver having to remove a hand from the steering wheel. When the vehicle is stationary, the parking ticket, toll fee, etc. can then be safely transferred. Only when starting up, when the opening barrier is detected, and when the sensor data is positive (e.g.As soon as your hand is no longer in the window, the window automatically moves back up. Alternatively, this can also be done using appropriate gesture control or specific voice commands.

[0023] The present invention enables universal applicability to situations in which the driver must perform an action outside the vehicle without leaving the vehicle, such as purchasing a ticket in a parking garage (entrance to a parking garage, parking space with a barrier), inserting a parking ticket into a machine (exiting a parking garage / parking space), paying or taking a ticket at a toll booth, paying, ordering, or receiving food at a drive-through restaurant, or ordering or paying for a program at a car wash. By combining various sensor data, the present invention can make an efficient and safe decision about opening or closing the windows.The present invention ensures that a driver does not have to remove his hand from the steering wheel to operate a window lifter and is therefore not distracted, which can increase safety and comfort.

[0024] In other words, the present invention increases, among other things, safety and comfort, as the driver can keep both hands on the steering wheel until the vehicle comes to a complete stop.

[0025] The present invention is explained in more detail below using exemplary embodiments and the figures.

[0026] They show: Fig. 1 a schematic representation of a device according to an embodiment of the invention, Fig. 2 a schematic flow diagram according to an embodiment of the method according to the invention and Fig. 3 a schematic flow diagram according to a further embodiment of the method according to the invention.

[0027] Fig. 1 shows the schematic structure of an embodiment of the present invention with a camera 10, a speed sensor 20 and a GPS sensor 21, a control unit 30 and a window 40.

[0028] Fig. 2 shows a corresponding schematic flow diagram of the exemplary embodiment according to Fig. 1.

[0029] The camera 10 is suitable for recording images of the surroundings continuously or at predetermined intervals and for analyzing these images using image processing software for possible objects such as information signs. Relevant information signs within the meaning of the present invention can be, for example, street signs, signs for announced toll stations, parking garage signs or parking guidance system signs, etc. The acquisition of the camera data is intended to enable the detection of an impending event (e.g. opening of the window) as early as possible. The at least one window to be opened is preferably the window on the driver's side, so that the driver can perform an action outside the vehicle through the open window without leaving the car.

[0030] The evaluation of the data is advantageously carried out in the control unit 30. For this purpose, the data from the camera 10 is transferred (transmitted) to the control unit. This step of receiving and transmitting the camera data is described in Fig. 2 is designated S1. The control unit 30 then takes over the evaluation of the transmitted camera data (step S2 in Fig. 2). Preferably using image processing, such as image pattern analysis or image pattern matching.

[0031] The camera provides images of the surroundings, preferably the front of the vehicle. Significant sections are then identified and processed.

[0032] For signs, for example, so-called OCR (optical character recognition) with database comparison is conceivable; the same applies to barriers. Preferably, recognition is supported by a comparison with navigation data. The evaluation is then carried out, depending on the situation, by comparing the data with a database in which signs are stored and can be compared with the recognized text.

[0033] Other vehicles, ticket booths, etc. can be identified using various image classification methods known to those skilled in the art, i.e., image preprocessing, segmentation and feature extraction (various methods), and finally classification (e.g., using regression, neural networks, Gaussian methods, and many more). The methods are preferably used depending on the situation, i.e., text recognition is used for signs with text and a classification method for signs without text. The methods are preferably executed in parallel to obtain fast results depending on the situation. However, it is also possible to execute one method preferentially and only execute the other method(s) after the first method fails, in order to save computing power.

[0034] In the exemplary embodiment according to Fig. 1, a speed sensor 20 and a GPS sensor 21 are provided. The speed sensor 20 is suitable for measuring the speed of the motor vehicle and the GPS sensor 21 is suitable for receiving or determining the position of the motor vehicle (step S3 in Fig. 2). The data from the speed sensor 20 and the GPS sensor 21 are also transferred to the control unit 30. The control unit 30 then takes over the evaluation of the transferred sensor data (step S4 in Fig. 2).

[0035] The transmission or evaluation of the various data to or by the control unit 30 is preferably carried out in parallel, but can also take place one after the other, e.g. at predetermined times.

[0036] In a preferred embodiment of the present invention, the camera data is continuously evaluated. As soon as the control unit 30 has detected an object, such as a relevant sign, the control unit evaluates the data from the speed sensor 20 and / or the GPS sensor 21. If the control unit 30 determines, based on the speed data and / or the GPS data, that the motor vehicle is approaching, for example, a toll station or a parking garage, the control unit 30 will initiate the opening of at least one window 40, preferably the window 40 located on the driver's side (step S5 in Fig. 2).

[0037] By using multiple data sets (here, camera data, speed data, and GPS data), the opening of window 40 can be reliably controlled. The early detection of an object, such as a sign, based on the camera data means that control unit 30 does not have to continuously evaluate the data from speed sensor 20 and GPS sensor 21. This saves, for example, computing capacity and energy. It is preferred that control unit 30 evaluates the speed data and GPS data only after camera 10 has detected an object, such as a sign.

[0038] The order in which the data sets are evaluated is merely exemplary and not exhaustive. According to an exemplary embodiment, after successfully detecting an object, such as a sign, the position of the vehicle could first be determined using the GPS data and available map material, on which, for example, parking garages and / or toll booths are registered. This enables the control unit 30 to decide whether the window 40 should be opened. Preferably, the control unit 30 will only initiate the opening of the window 40 when the motor vehicle approaches the parking garage or toll booth.

[0039] In addition to or alternatively to the GPS data, the control unit 30 can use the data from the speed sensor 20 to decide whether to open the window 40. Preferably, the decision to open the window is tied to the condition of the motor vehicle being completely stationary (speed = 0 km / h).

[0040] Whether and which data are used to determine the opening of window 40 is preferably determined depending on the situation. When the motor vehicle approaches a toll station, it is advantageous to initially use only the GPS data, since traffic jams often occur at toll stations and the speed sensor could indicate a standstill, even though the toll station has not yet been reached. The speed sensor 20 is only evaluated once the camera data determines that the vehicle has reached the toll station.

[0041] On the other hand, in situations where GPS data cannot be determined or can only be determined very imprecisely, it could be advantageous to only evaluate the speed data. To increase accuracy, the speed data and the GPS data are preferably combined. The control unit 30 can have both situation-specific presets and a generally valid preset. For example, to detect a parking garage, the control unit 30 can use the camera data for early detection and then evaluate the speed data and the GPS data to determine that the window 40 should be opened. This can be advantageous because a motor vehicle often drives directly past parking garages without the driver actually heading for it. As a result, the determination by using only one sensor in addition to the camera data can possibly lead to the window 40 being opened incorrectly. The situation is different, for example, with a toll station.A different presetting might be possible here, as it is rather unlikely that a driver who comes into the immediate vicinity of a toll station will not want to pass it. Thus, it might be sufficient to evaluate, for example, GPS data in addition to early detection using camera data to decide whether the window should be opened. A uniform presetting of the control unit 30 is also preferred, i.e., the same conditions for opening the window 40 for the various situations. Preferably, a combination of camera data and sensor data is used here that leads to a satisfactory result in all situations, e.g., by evaluating the camera data, position data, and speed data.

[0042] Preferably, after the window 40 has been automatically opened, the window 40 is automatically closed. Preferably, after the window 40 has been opened, the control unit 30 evaluates the received data to determine whether the window should be closed. In order to save computing power, such an evaluation is only performed after the window 40 has been previously opened by the control unit due to an object detected according to the invention. For this purpose, the data from the speed sensor 20, the GPS sensor 21 and / or the camera 10 are received, evaluated and used (step S6 in Fig. 2).

[0043] Preferably, the speed data of the speed sensor 20 are evaluated by the control unit 30 after the automatic opening of the window 40 in order to register a start of the motor vehicle and then to automatically close the window 40 (step S7 in Fig. 2). It is also possible to evaluate the camera data or GPS data in the control unit 30 to trigger the automatic closing of the window 40 by the control unit 30. For example, the camera data could be used to determine whether a toll station has been passed.

[0044] Preferably, after the window 40 has been successfully closed, the control unit 30 will proceed to evaluate the camera data for the detection of another information sign in order to execute steps S1 to S7 again if necessary.

[0045] Fig. 3 shows another exemplary embodiment of the present invention. As in Fig. 3, in a first step S10, early detection of road signs is achieved, preferably by evaluating camera data.

[0046] In a further step S11, the detection of locations is carried out via the sensors used, e.g. speed sensor and / or position sensor, preferably in agreement with each other, in order to determine whether the situation previously detected in S10 has been reached.

[0047] If it is detected in S11 that the location has been reached, the window is opened and the driver has the option of performing an action through the open window, e.g. purchasing a parking ticket (S12).

[0048] In a further step S13, it is determined whether the window should be closed again. For this purpose, the camera data and / or the sensor data are preferably evaluated. The camera data can be used, for example, to determine whether a barrier has been opened. The sensor data can be used, for example, to determine whether a body part is still within the window area (e.g., using an infrared sensor) or whether the vehicle is moving (e.g., using a speed sensor and / or position sensor).

[0049] If it has been determined in S13 that one or more conditions for closing the window pane are met, the window is closed in a step S14. Preferably, the method begins again from the beginning after S14, ie, it starts again at S10.

[0050] In the exemplary embodiment of the present invention described above, the camera data was evaluated first. Alternatively or additionally, it is possible to evaluate the data from one sensor, e.g., GPS sensor 21, continuously and first. If the control unit 30 determines that the motor vehicle is approaching a parking garage or toll station, other sensor data, e.g., from the speed sensor 20 and / or from the camera 10, can be evaluated to determine the opening or closing of the window 40. The camera data could, for example, be used to determine whether the motor vehicle is behind another motor vehicle or whether it has reached the payment point of the parking garage or toll station. Alternatively, the speed data, as already described above, can be used to determine the opening or closing of the window.

[0051] The present invention is not limited to the use of specific sensors, here speed sensor 20 and GPS sensor 21. Rather, a variety of sensors can be used that are suitable for determining the opening or closing of the window 40. Also, it is not necessarily necessary to evaluate two sensors in addition to the camera data; it is possible to use just a single additional sensor to clearly determine the opening or closing of the window 40. For example, it can be advantageous to evaluate a further sensor, e.g. an infrared sensor, for closing the window pane, which is suitable for determining whether a body part, in particular an arm or a hand, is in the area of ​​the window to be closed. This can further increase safety.

Claims

[1] Device for automatically opening and closing at least one window pane (40) of a motor vehicle, the device comprising: at least one camera (10) configured to provide camera data comprising images of an environment of the motor vehicle; at least one sensor unit (20, 21) configured to provide data for determining a position of the motor vehicle and / or for determining a speed of the motor vehicle; and a control unit (30) which is configured to process the data of the at least one camera (10) and the at least one sensor unit (20, 21) and thereby • to detect whether the vehicle is approaching a parking garage, or • to detect whether the motor vehicle is approaching a toll station, or • to detect whether the vehicle is approaching a car wash, or • to detect whether the motor vehicle is approaching a ticket booth, or • to detect whether the motor vehicle is approaching a drive-through restaurant, and depending on whether it has been detected that the motor vehicle is approaching a parking garage, a toll station, a car wash, a ticket booth or a drive-through restaurant, to decide whether the at least one window pane (40) should be opened, wherein the control unit (30) is further configured to open the at least one window pane (40) based on the decision. [2] Device according to claim 1, wherein the at least one sensor unit (20, 21) comprises a receiver for electromagnetic signals and / or optical and / or acoustic signals. [3] Device according to claim 1 or 2, wherein the at least one sensor unit (20, 21) comprises a speed sensor (20) and / or a position sensor (21). [4] Device according to one of claims 1 to 3, wherein the device further comprises a storage unit for storing predetermined camera data and data of the sensor unit and for storing relations of the data to one another and conditions associated with the opening of the at least one window pane (40), wherein the control unit (30) is configured to decide, on the basis of the association of data stored in the storage unit, whether the at least one window pane (40) should be opened. [5] Device according to one of claims 1 to 4, wherein the device further comprises a notification unit, wherein the notification unit is configured to inform a driver of the motor vehicle that the control unit (30) has decided to open the at least one window pane (40) and / or wherein the control unit (30) is configured to open the window pane (40) only after confirmation by the driver. [6] Method for automatically opening and closing at least one window pane (40) of a motor vehicle, the method comprising the following steps: Providing image data comprising images of an environment of the motor vehicle using at least one camera (10); Providing sensor data for determining a position of the motor vehicle and / or for determining a speed of the motor vehicle using at least one sensor unit (20, 21); Processing the image data and the sensor data using a control unit (30) • to detect whether the motor vehicle is approaching a parking garage, or • to detect whether the motor vehicle is approaching a toll station, or • to detect whether the vehicle is approaching a car wash, or • to detect whether the motor vehicle is approaching a ticket booth, or • to detect whether the motor vehicle is approaching a drive-through restaurant; Deciding whether the at least one window pane (40) should be opened depending on whether it has been detected that the motor vehicle is approaching a parking garage, a toll booth, a car wash, a ticket booth or a drive-through restaurant; and Opening the at least one window pane (40) according to the decision made. [7] The method of claim 6, wherein providing and processing the sensor data comprises using at least one of the following sensor data: ultrasonic data, infrared data, distance data, position data, GPS data, speed data, or audio data. [8] Method according to one of claims 6 or 7, wherein the method comprises a step of associating predetermined camera data and sensor data with the opening of the at least one window pane (40) using a storage unit, wherein the decision is based on the associated data. [9] Method according to one of claims 6 to 8, wherein the method further comprises a step of notifying a driver of the motor vehicle that the control unit (30) has decided to open the at least one window pane (40) and / or wherein the opening of the at least one window pane (40) only takes place after an additional step of confirming the opening by the driver.

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