Method for selectively opening at least one access of vehicle

Abstract

The invention relates to a method for selectively opening at least one entrance (2) of a vehicle (1) by means of an ID transmitter (3) having an authorized ID for the entrance of the vehicle. Simplified and more accurate selective opening is achieved by defining an associated trigger zone (100) on the vehicle (1) for at least one of the at least one entrance (2) of the vehicle, in which the entrance (2) is opened when a straight line (102) extending the vector (101) strikes the trigger zone (100) associated with the entrance (2). The invention also relates to a computer program product designed to carry out the method.

Description

Technical Field

[0001] The invention relates to a method for selectively opening at least one entrance to a vehicle by means of an ID transmitter and also to a computer program product for carrying out the method. Background Art

[0002] Vehicles usually have two or more entrances, such as doors, tailgates, trunk lids, etc., which allow access to the interior of the vehicle. In order to prevent unauthorized and / or unwanted access to the vehicle, such entrances are usually locked. Therefore, in order to allow authorized users to access the vehicle, the corresponding entrances need to be unlocked and opened.

[0003] In order to enable the user to unlock the entrance in a contactless manner, it is known that the user carries an ID transmitter with him. The ID transmitter includes an authorized ID for vehicle entrance. In this case, the vehicle is unlocked when the distance from the ID transmitter to the vehicle decreases below a threshold.

[0004] A corresponding method is known from DE 103 41 286 A1. DE 103 41 286 A1 describes an access control system for vehicles based on radio operation. In this case, the vehicle is unlocked if the vehicle and a transmitter operated by the user are able to communicate with each other via radio.

[0005] From JP-2018 178 506A it is known to determine the direction of movement of an ID transmitter relative to a vehicle and to open an entrance of the vehicle when the direction of movement approaches an entrance having a component.

[0006] Further methods with movement-dependent activation of functions are known from DE 10 2016 206 067 A1, DE 10 2013 220 240 A1, US 2016 / 0001742 A1, DE 10 2019 135 130 B3, DE 10 2019 114 917 A1 and DE 10 2010 010 057 A1.

[0007] US2020 / 0314651 A1 describes a system for accessing different doors in a building. In this case, a user carries an ID transmitter, wherein each door is assigned a reading unit for communicating with the ID transmitter. If a user passes a reading unit associated with a door with an ID transmitter, it is recognized that the user does not wish to enter the associated door, and it is assumed that the user wishes to open another door. Then, preparations are made to unlock the other door. Summary of the invention

[0008] The invention relates to a method for selectively opening at least one entrance of a vehicle, and a computer program product for carrying out the method, which in particular eliminate the disadvantages of the prior art. In particular, the invention relates to the task of specifying improved or at least other embodiments for the method and the computer program product, which are characterized by increased simplicity and reliability.

[0009] According to the invention, this object is achieved by the subject matter of the independent claim. Advantageous embodiments are the subject matter of the dependent claims.

[0010] The invention is therefore based on reproducing the direction of movement of the authorized user by means of a vector and predicting, by extension of the vector, whether the user is moving in the direction of a vehicle entrance and, in this case, opening this entrance. By using vectors, a complex and time-consuming determination of the entire movement trajectory of the user is no longer necessary, so that the method can be performed in a simplified manner. Furthermore, the use of vectors leads to the automatic and intrinsic consideration of naturally occurring deviations of the user's movement to the destination, i.e. in this case to the corresponding entrance, so that the method and, therefore, the opening of the corresponding entrance can be performed reliably. The latter also increases the comfort of the user.

[0011] According to the idea of ​​the invention, the method provides that the user carries an ID transmitter with him. The ID transmitter has an authorized ID for the vehicle entrance. The vehicle has at least one entrance. In this case, an associated trigger zone on the vehicle is predetermined for at least one of the at least one entrance of the vehicle. In addition, a vector representing the movement direction of the ID transmitter is determined for the ID transmitter. The vector is extended with a straight line. If the line intersects one of the at least one trigger zone, the entrance associated with the trigger zone is selectively opened.

[0012] This vector is rectilinear and can therefore also be referred to as a direction vector. The rectilinear course of the vector improves the simplified and reliable opening of the correspondingly associated access openings mentioned above.

[0013] If the vehicle has two or more entrances and an associated triggering zone is predetermined for at least two entrances respectively, the triggering zones of the two entrances can overlap in the overlapping area. This is usually the case for consecutive and / or directly adjacent entrances. In this case, if the line intersects the overlapping area, both entrances belonging to the overlapping area are preferably opened. Thus, when the line intersects at least one of the at least one triggering zone, the entrance associated with the at least one triggering zone is opened. This increases the comfort for the user.

[0014] In this case, “selective” opening is to be understood in particular to mean that, depending on the intersection of the lines, only at least one associated inlet is opened, while the other inlets (if present) remain closed.

[0015] In this case, the "opening" or "being opened" of the entrance is understood as unlocking the entrance. It is also conceivable that the opening of the entrance also includes a mechanical opening of the entrance, for example by a motor or an actuator.

[0016] In this case, "closing" or "being closed" of the entrance should be understood as locking of the entrance. It is conceivable that closing also includes mechanical closing of the entrance, for example by a motor or an actuator.

[0017] The corresponding entrance of the vehicle allows access and / or entry into the interior of the vehicle. Thus, the corresponding entrance can be a door or a trunk lid, in particular a so-called "front trunk (Frunk)".

[0018] The ID transmitter is usually an item that the user carries with him. Therefore, the ID transmitter can be a vehicle key, a mobile phone, a card, etc.

[0019] In a preferred embodiment, it is recognized based on the vector whether the ID transmitter is approaching the vehicle, and the extension of the line is performed only when the ID transmitter is approaching the vehicle. Consideration is given to the fact that the user intends to approach the vehicle only when the user and therefore the ID transmitter carried by him is approaching the vehicle. In this way, the reliability of the method is increased. At the same time, unnecessary determination of the line is avoided, thereby simplifying the method and carrying out it in a resource-saving manner.

[0020] In principle, proximity can be identified based on the vector in any desired way.

[0021] In order to detect the approach by means of a vector, the angle of the vector relative to a direction extending transversely to the vehicle's Z axis is advantageously determined and based on this angle it is detected whether the ID transmitter is approaching the vehicle. Thus, in combination with the vector, the approach can be detected simply and reliably. Preferably, the angle of the vector relative to the vehicle's X axis is determined.

[0022] For detecting the approach, in addition to determining the angle, preferably also the position and / or orientation of the vector relative to the vehicle, preferably relative to the respective entrance, is detected and taken into account. Thus, the accuracy of detecting the approach is increased.

[0023] Proximity detection advantageously comprises distinguishing whether the ID transmitter, and thus the user, is approaching the vehicle or moving away from the vehicle.

[0024] Preferably, the identification of the approach also includes the identification of the course of a vector parallel to the respective entrance, in particular the X-axis. In the case of such a parallel route, preferably the absence of any approach is detected. In this case, use is made of the knowledge that such a parallel route usually exists when the respective user only moves past the vehicle and not to the entrance. Thus, the simplicity and reliability of the method are increased.

[0025] In this context, the "axes" of the vehicle refer to the axes in the vehicle's coordinate system.

[0026] Advantageously, it is recognized based on the vector whether the ID transmitter is moving away from the vehicle, in particular at least one entrance, and when the ID transmitter is moving away from the vehicle or the entrance, at least one of the at least one entrance is closed. Preferably, it is recognized whether the ID transmitter moves away from the corresponding entrance, and if there is such movement away, the corresponding entrance is closed. Thus, the reliability and comfort of the method are increased.

[0027] The determination of the vector can in principle be carried out in any desired manner.

[0028] In order to determine the vector, the relative position of the ID transmitter relative to the vehicle is regularly determined, and an embodiment in which the vector is determined from the last relative position has proven to be advantageous. These are the last relative positions in chronological order. This leads to a simplified determination of the vector and thus simplifies the implementation of the method. In addition, in this way, the situation in which the ID transmitter initially moves in the direction of the vehicle and then deviates from this direction and moves away from the vehicle or parallel to the vehicle is more simply and promptly recognized. Therefore, the reliability of the method is increased.

[0029] The vector may be determined from the last determined relative position in any desired manner.

[0030] It is conceivable to determine the vector by interpolation of the determined last relative positions. In particular, it is conceivable to determine the vector by linear interpolation of the relative positions and / or by interpolation using the least squares method. This leads to a simple, accurate and reliable determination of the vector, thereby correspondingly increasing the simplicity and reliability of the method.

[0031] It is conceivable to use the last determined relative position of the ID transmitter as the tip of the determined vector.

[0032] The determination of the vector, preferably the determination of the relative position of the ID transmitter with respect to the vehicle, is conveniently performed in a contactless manner.

[0033] The vector and the relative position of the ID transmitter relative to the vehicle are advantageously determined by electromagnetic waves, in particular by radio.

[0034] In a preferred embodiment, the respective relative position of the ID transmitter relative to the vehicle is determined by means of an ultra-wideband, thereby determining the vector. This results in an increased accuracy in determining the relative position and thereby the vector. Furthermore, an ultra-wideband module is usually present in the vehicle, so that no further signal transmission is required to perform the method. Thus, the method is simplified.

[0035] For this purpose, the vehicle has at least one radio module, in particular an ultra-wideband module, which interacts, in particular communicates, with the ID transmitter in such a way that the relative position of the ID transmitter with respect to the vehicle is identified and determined.

[0036] Determining the vector or the relative position of an ID transmitter by means of electromagnetic waves, in particular by means of ultra-wideband, depends on the range of the corresponding wave. Thus, the vector is only determined when there is a sufficiently high interaction with the corresponding wave. Advantageously, the method is only performed when the range of the wave and / or the signal strength exceeds a predetermined value. Thus, the reliability of the method is increased.

[0037] The determination of the relative position and / or the determination of the intersection of the lines may be performed in any desired manner.

[0038] The intersection is advantageously determined by triangulation. For this purpose, for example, vectors and angles can be used for triangulation.

[0039] Advantageously, the respective relative position of the ID transmitter relative to the vehicle is determined by triangulation. For this purpose, the vehicle preferably has at least two radio modules.

[0040] It is conceivable that when a line intersects an associated trigger zone, the corresponding portal is immediately opened.

[0041] In a preferred embodiment, at least one entrance, preferably the corresponding entrance, is opened only when the distance of the tip of the vector to the vehicle, preferably in the region of the associated trigger zone, falls below a predetermined threshold. This means that at least one entrance, preferably the corresponding entrance, is opened when the line intersects the trigger zone and the distance is below the threshold. This prevents the entrance from opening too early in particular. In this way, it is also prevented that the entrance is opened in vain above the threshold when the ID transmitter leaves the entrance. Thus, the accuracy of the method is increased.

[0042] Preferably, at least the associated entrance is closed when a threshold value is exceeded, ie when the tip of the vector or the ID transmitter is at a distance from the vehicle in the entrance area that exceeds a threshold value.

[0043] The threshold value is advantageously defined relative to the shell of the vehicle. Thus, the distance relative to the shell of the vehicle is also defined.

[0044] In a preferred embodiment, the threshold value corresponds to a radius starting from a center point arranged on the vehicle housing. The center point is conveniently arranged in the region of the associated triggering zone, in particular in the triggering zone. This simplifies the implementation of the method and increases the accuracy.

[0045] In principle, it is conceivable to determine distances in three-dimensional space in order to determine thresholds, vectors and relative positions.

[0046] The method is simplified by predefining and determining at least one triggering zone, vector and line only two-dimensionally in a plane extending transversely or obliquely to the vehicle Z axis. In addition to simplifying the method, this also results in resource-saving execution.

[0047] Preferably, the vector, the line and the at least one triggering zone are predetermined or determined in a plane extending transversely to the Z axis of the vehicle, preferably in a plane defined by the Y axis and the X axis. This means that the at least one triggering zone, the vector and the line are predetermined or determined only in a plan view of the vehicle. This leads to a further simplification of the method and an increase in accuracy.

[0048] It should be understood that for the same vehicle, different ID transmitters may exist, and the corresponding ID transmitters may have authorization IDs for predetermined entrances or only for single entrances. In this case, opening will only be performed when the corresponding authorization ID is available.

[0049] The method according to the invention is preferably carried out by means of a correspondingly configured computer program product.

[0050] The computer program product advantageously contains instructions readable by a computer system such that the computer system performs the method when executing the computer program product.

[0051] The computer program product is advantageously stored on a memory system having at least one non-volatile memory.

[0052] It should be understood that computer program products also fall within the scope of the present invention.

[0053] The method, in particular the computer program product, is advantageously at least partially executed in a vehicle. For this purpose, the vehicle is designed accordingly. For example, the vehicle may at least partially have a computer system. BRIEF DESCRIPTION OF THE DRAWINGS

[0054] Further important features and advantages of the invention emerge from the dependent claims, the drawings and the description of the associated figures based on the drawings.

[0055] It is to be understood that the features mentioned above and those yet to be explained below can be used not only in the respectively specified combination but also in other combinations or alone, without departing from the scope of the present invention.

[0056] Preferred exemplary embodiments of the invention are shown in the drawings and are explained in more detail in the following description, wherein the same reference numerals refer to identical or similar or functionally identical components.

[0057] Here,

[0058] Figure 1 A simplified top view of a vehicle with a trigger zone is shown;

[0059] Figure 2 Shows Figure 1 A partial view of a portion of the vehicle having a vector when approaching an ID transmitter;

[0060] Figure 3 shows that as the ID transmitter approaches further Figure 2 's view;

[0061] Figure 4 shows another approach of the ID transmitter Figure 3 's view;

[0062] Figures 5 to 10 A simplified view of vectors with different orientations is shown in each case. DETAILED DESCRIPTION

[0063] like Figures 1 to 4 As shown, the vehicle 1 has at least one entrance 2. In the embodiment shown, purely by way of example, the vehicle 1 has a total of six such entrances 2. Four of these entrances 2 are doors 4 of the vehicle 1. Two of the entrances 2 are trunk lids 5 of the vehicle 1. The trunk lids 5 are arranged opposite each other along an X-axis AX of the vehicle 1. In each case, two doors 4 are arranged opposite each other along a Y-axis AY of the vehicle 1 and are arranged adjacently along the X-axis AX. In each case, Figures 2 to 4 Shows Figure 1 , in which only two of the doors 4 that are adjacent along the X-axis AX are seen, wherein, purely by way of example, it is assumed that the front door 4 along the X-axis is the driver's door 4 , 4 a of the vehicle 1 .

[0064] Access to the interior of the vehicle 1 via the entrance 2 is provided via the ID transmitter 2, which is only Figure 1 In this case, the ID transmitter 2 has an authorization ID for vehicle entry.

[0065] from Figure 1 It can be seen in particular that an associated triggering zone 100 is predetermined for at least one entrance 2 on the vehicle 1. In the embodiment shown, an associated triggering zone 100 is predetermined for the respective entrance 2 merely as an example. In the embodiment shown, the respective triggering zone 100 is predetermined in the handle region (not further shown) of the respective entrance 2 and on the housing 6 of the vehicle 1. In the embodiment shown of the respective entrance 2, the triggering zone 100 enables a selective opening of the at least one entrance 2. This will be described below with reference to Figures 2 to 10 To explain.

[0066] from Figures 2 to 4 It can be seen that in order to selectively open the entrance 2, it is necessary to determine the Figures 2 to 10The vector 101 of the movement direction of the ID transmitter 3 (not shown) is obtained. In the embodiment shown, this is achieved by regularly determining the relative position 104 of the ID transmitter 3 relative to the vehicle 1. The relative position 104 is Figures 2 to 4 In the embodiment shown, the relative position 104 of the ID transmitter 3 relative to the vehicle 1 is determined with the aid of an ultra-wideband. The vector 101 is determined from the last relative position 104 in chronological order, for example by interpolating the last determined relative position 104. The vector 101 thus determined extends in a straight line and has a direction, and can therefore also be referred to as a direction vector 101. The vector 101 is in Figures 2 to 4 1. The straight line 102 shown in dashed lines in FIG. 1 extends from the vehicle 1. If the line intersects one of the triggering zones 100, the entrance 2 belonging to the triggering zone 100 is selectively opened. In the embodiment shown, an impact area 103 of the extended line 102 on the vehicle 1 is determined. If the impact area 103 intersects one of the triggering zones 100, the associated entrance 2 is opened. The intersection or impact area 103 can be determined by triangulation.

[0067] exist Figure 2 and Figure 3 In the embodiment of FIG. 1 , the line 102 intersects the triggering area 100 belonging to the driver's door 4 , 4 a. Therefore, the driver's door 4 , 4 a is opened. Figure 2 and Figure 3 As shown in the comparison of FIG. 1 and FIG. 2 , in the embodiment shown, in order to open the corresponding entrance 2, a further prerequisite must be met, namely a drop below a predetermined distance 106 of the tip 105 of the vector 101 to the vehicle 1. This means that the corresponding entrance 2 is only opened when the line 102 intersects the associated triggering zone 100 of the entrance 2 and, in addition, the distance 106 of the tip 105 of the vector 101 to the vehicle 1 drops below a predetermined threshold value 107. In the embodiment shown, as Figures 2 to 4 As shown, the threshold value 107 corresponds to a radius 108 starting from a center point (not shown) arranged on the housing 6 of the vehicle 1. It can also be seen from the figure that the center point (not shown) is arranged in an area in the associated triggering zone 100. As shown by the red semicircle, Figure 2 The distance 106 of the vector 101 shown is greater than a threshold value 107 or a radius 108, so that at this distance 106 the entrance 2, ie in this example the driver's door 4, 4a, is not yet open. Figure 3 At the distance 106 shown, the distance 106 corresponds to the threshold 107, which can also be seen from the red semicircle. Figure 3The line 102 in the figure intersects the triggering zone 100 of the driver door 4, 4a, from which distance 106 the driver door 4, 4a is opened and thus below the threshold value 107. The opening of the respective entrance 2 comprises an unlocking of the entrance 2. Furthermore, the opening may comprise a mechanical opening of the entrance 2, for example using a motor not shown.

[0068] like Figure 4 As shown in the example of FIG. 1 , the triggering areas 100 of two inlets 2 may overlap in an overlap area 109. If the line 102 intersects the overlap area 109, then in the embodiment shown, both inlets 2 are open.

[0069] exist Figures 2 to 4 In the example shown, the ID transmitter 3 and therefore the user (not shown) carrying the ID transmitter 3 approaches the vehicle 1, so that the above-mentioned opening of the at least one entrance 2 occurs. This approach is recognized using the vector 101. Here, the determination of the intersection of the line 102 with the at least one triggering zone 100 is performed only when the ID transmitter 3 approaches the vehicle 1. To this end, in the embodiment shown, the angle α of the vector 101 relative to the direction extending transversely to the Z axis AZ of the vehicle 1 (in the embodiment shown relative to the X axis AX of the vehicle 1) is determined, and based on the angle α it is recognized whether the ID transmitter 3 is approaching the vehicle 1. Figures 5 to 10 The vector 101 is shown at different angles α in the clockwise direction relative to the X-axis AX. Thus, for the driver's door 4, 4a, Figure 5 and Figure 6 The angle α shown indicates close proximity, while Figure 7 and Figure 8 The angle α shown represents the parallel movement of the ID transmitter 3 relative to the driver's door 4 , 4 a. Fig. 9 and Fig.10 The angle α shown represents a movement away from the driver's door 4, 4a. Figure 5 and 6 In , the position of vector 101 or its orientation relative to vehicle 1 must also be taken into account.

[0070] In the embodiment shown, if it is known by means of the vector 101 that the ID transmitter 3 moves away from the corresponding entrance 2, the entrance 2 is closed. Furthermore, in the embodiment shown, the entrance 2 is closed when the distance 106 exceeds the threshold 107. In this case, the closing of the corresponding entrance 2 includes the locking of the entrance 2. Furthermore, the closing of the corresponding entrance 2 may also include a mechanical closing, for example by means of a motor not shown.

[0071] from Figures 1 to 10It can be seen that in the exemplary embodiment shown, the pre-determination of at least one triggering zone 100 , the determination of vector 101 and line 102 , the determination of the intersection and the determination of angle α are performed only in a plane normal to the Z axis AZ, thus two-dimensionally in top view.

[0072] The method according to the invention results in a simplified design of the selective opening of the inlet 2 , with increased reliability.

[0073] In the exemplary embodiment shown, the method is performed with the aid of a correspondingly configured computer program product. In this case, the computer program product can be at least partially stored in the vehicle 1 and / or executed.

Claims

1. A method for selectively opening at least one entrance (2) of a vehicle (1) by means of an ID transmitter (3) having an authorized ID for the vehicle entrance, -in, For at least one of the at least one inlet (2) of the vehicle (1), an associated triggering zone (100) is predefined in the area of ​​a handle of the inlet (2) on the housing (6) of the vehicle (1), - wherein a vector (101) representing the direction of movement of the ID transmitter (3) is determined, - wherein the vector (101) extends through a straight line (102), - wherein an impact area (103) of the extended line (102) on the vehicle (1) is determined, - wherein, in the event that the impact area (103) intersects at least one of the at least one triggering zones (100), the inlet (2) associated with the at least one triggering zone (100) is opened.

2. The method according to claim 1, It is characterized in that The vector (101) is used to identify whether the ID transmitter (3) is approaching the vehicle (1), and the line (102) is determined only when the ID transmitter (3) is approaching the vehicle (1).

3. The method according to claim 2, It is characterized in that The method comprises determining the direction in which the vector (101) extends relative to a Z-axis (AZ) transverse to the vehicle (1), in particular an angle (α) relative to an X-axis (AX) of the vehicle (1), and identifying whether the ID transmitter (3) is approaching the vehicle (1) based on the angle (α).

4. The method according to claim 2 or 3, It is characterized in that The vector (101) is used to identify whether the ID transmitter (3) is moving away from the at least one entrance (2), and when the ID transmitter (3) is moving away from the at least one entrance (2), at least one of the at least one entrance (2) is closed.

5. The method according to any one of claims 1 to 4, It is characterized in that - regularly determining the relative position (104) of the ID transmitter (3) relative to the vehicle (1), - Determine said vector (101) from the final relative position (104).

6. The method according to claim 5, It is characterized in that The vector (101) is determined by interpolating the last determined relative position (104).

7. The method according to claim 5 or 6, It is characterized in that The relative position (104) of the ID transmitter (3) relative to the vehicle (1) is determined by means of ultra-wideband.

8. The method according to any one of claims 1 to 7, It is characterized in that The intersection is determined by triangulation.

9. The method according to any one of claims 1 to 8, It is characterized in that If in addition the distance (106) of the tip (105) of the vector (101) to the associated triggering zone (100) falls below a predetermined threshold (107), at least one of the at least one inlet (2) is opened.

10. The method according to claim 9, It is characterized in that The threshold value (107) corresponds to a radius (108) starting from a center point arranged on the housing (6) of the vehicle (1).

11. The method according to any one of claims 1 to 10, It is characterized in that - the triggering zones (100) of the two inlets (2) overlap in an overlapping region (109), - When the line (102) intersects the overlap area (109), both inlets (2) are open.

12. The method according to any one of claims 1 to 11, It is characterized in that The at least one triggering zone (100), the vector (101) and the line (102) are predefined and determined two-dimensionally only in a plane transversely or obliquely to the Z axis (AZ) of the vehicle (1), preferably transversely to the Z axis (AZ).

13. A computer program product designed to perform the method according to any one of claims 1 to 12.

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