METHOD FOR CONTROLLING A MOBILE IDENTIFIER

Description

[0001] The present invention relates to a method for controlling a mobile identification transmitter according to the independent method claim. Furthermore, the invention relates to a corresponding system comprising a mobile identification transmitter and a vehicle safety system according to the independent system claim. Finally, the invention relates to a corresponding mobile identification transmitter according to the independent apparatus claim.

[0002] Mobile identification transmitters (ID transmitters) are used as electronic keys to enable contactless unlocking of a vehicle's security system, providing an alternative to mechanical keys. Furthermore, ID transmitters can be used for numerous other tasks in vehicles to enhance user convenience and safety. Low-frequency radio systems are typically used for communication between the ID transmitter and the vehicle (or its security system). This allows authentication data to be transmitted wirelessly, enabling the unlocking of the security system and / or the starting of the vehicle's engine upon successful authentication.

[0003] From a greater distance, authentication can be initiated by a vehicle user, for example, by pressing a button. This active activation of the identification transmitter by the user sends the signal containing the authentication data, such as an ID code, to the vehicle's electronics within the security system. This functionality is also referred to as active keyless entry (when, for example, a button must be actively pressed). In addition to or instead of active keyless entry, security systems with so-called passive keyless entry or passive keyless go functionality are increasingly being used. Unlike a conventional remote control, passive keyless entry does not require the user to actively operate the identification transmitter (meaning without actively pressing a button). For example...When the user approaches or a door handle is operated, a wake-up signal can be transmitted from the vehicle to the identification transmitter via a radio link, specifically an LF radio link (LF stands for Low Frequency). Along with the wake-up signal, or after the identification transmitter responds to the wake-up signal, an ID query signal is sent from the vehicle to the identification transmitter. The identification transmitter then sends a radio signal containing the authentication code to the vehicle's security system. Furthermore, the identification transmitter can also enable an additional function inside the vehicle: releasing an immobilizer to allow the engine to be started.

[0004] Such systems (especially passive ones) require security mechanisms to protect the vehicle, and in particular its security systems, from tampering and theft. For example, precautions must be taken to prevent unauthorized activation of vehicle security functions, such as unlocking and / or starting the engine, via a so-called "relay station attack".

[0005] For this purpose, ID transmitters can be equipped with a motion sensor for automatic deactivation, which disables the communication interface of the ID transmitter if no movement is detected for a certain period of time. This prevents the ID transmitter from being used to unauthorizedly open the vehicle when not in use and also saves energy.

[0006] However, this presents the problem that the ID transmitter inside the vehicle may be switched off after a certain period of time and therefore can no longer be recognized by the vehicle. For example, the motion sensor switches off the LF communication of the ID transmitter, and consequently, it can no longer be detected or located (position determination of the ID transmitter in the car) via LF interfaces inside the vehicle. This disrupts the functionality of the ID transmitter inside the vehicle, e.g., for starting an engine. DE 10 2015 223342 A1 discloses a method for operating an authorization device for a vehicle.

[0007] It is therefore an object of the present invention to overcome at least some of the disadvantages described above. In particular, it is an object of the present invention to enable improved, safer and / or more reliable communication between the ID transmitter and a vehicle's security system. Specifically, the functionality of the ID transmitter inside the vehicle is to be ensured.

[0008] The foregoing problem is solved by a method with the features of the independent method claim, a system with the features of the independent system claim, and a mobile identification transmitter with the features of the independent device claim. Further advantages and details of the invention will become apparent from the respective dependent claims, the description, and the drawings. Preferred embodiments of the invention are listed in the dependent claims. Features disclosed with respect to the individual aspects of the invention can be combined in such a way that the disclosures relating to the aspects of the invention always refer to each other.

[0009] The problem is solved in particular by a method for controlling a mobile identification transmitter (hereinafter referred to as ID transmitter or key) for a vehicle security system, wherein the mobile identification transmitter has the following elements: at least one communication unit to establish at least one data communication with the security system, and a motion sensor to detect movement of the mobile identification transmitter, wherein the motion sensor serves to control the at least one communication unit depending on the movement of the mobile identification transmitter, in particular to switch it off when the motion sensor does not detect any movement of the mobile identification transmitter.Within the scope of the invention, a check of at least one location position of the mobile identification transmitter in relation to the vehicle is carried out, wherein at least one function of the mobile identification transmitter is activated depending on the at least one location position of the mobile identification transmitter in relation to the vehicle.

[0010] Within the scope of the invention, it is conceivable that the communication unit can provide two different functionalities of the identification transmitter in relation to the vehicle, namely outside the vehicle and inside the vehicle. Outside the vehicle, the communication unit can be used to actuate, for example, unlocking and / or locking, the vehicle's security system. Inside the vehicle, the communication unit can verify an engine start and / or transmit personal data, for example, settings for the vehicle accessories. For this purpose, the communication unit can have two different interfaces (or different transmitting and / or receiving units) or a common interface (or a common transmitting and / or receiving unit) for different functionalities.

[0011] It is also conceivable that the mobile identifier's position relative to the vehicle could be verified using the communication unit or a (possibly additional) interface of the communication unit. Furthermore, a separate detection unit with its own interface could be used to verify the mobile identifier's position relative to the vehicle. NFC technology is the preferred method for verifying the mobile identifier's position relative to the vehicle.

[0012] The solution according to the invention provides that, depending on the mobile identification transmitter's position relative to the vehicle, particularly inside the vehicle, certain functions are activated. These positions can be located inside the vehicle or outside the vehicle. The functions of the mobile identification transmitter inside the vehicle can, in particular, ensure that the vehicle reliably identifies the transmitter and enables it to operate reliably inside the vehicle, for example, to start the engine and / or transmit personal data. In other words, these functions prevent the motion sensor from completely deactivating the ID transmitter inside the vehicle while still allowing for energy savings.This also avoids the need for the vehicle to switch off the motion sensor, at least permanently, so that the identification transmitter can still be reliably protected against a "relay station attack", especially when moving from inside to outside.

[0013] As an example of such a function, a reduction in the sensitivity of the ID sensor's communication unit (e.g., the ID sensor's interface for in-vehicle functionality) could be implemented (compared to normal mode, in which the ID sensor's communication unit has its normal sensitivity to enable data exchange with the vehicle, among other things). This would also result in lower energy consumption. Since the ID sensor is located inside the vehicle in close proximity to the vehicle, only a low sensitivity of the communication unit for LF communication (compared to normal mode) is necessary for detection by the vehicle. Furthermore, it is conceivable that such a function could include deactivating the ID sensor's interface for functionality outside the vehicle when the motion sensor does not detect any movement of the ID sensor.This prevents the motion sensor from being switched off entirely. As an additional function, a timer can be set on the ID transmitter, which only executes the functions for a specific duration, e.g., reducing the sensitivity and, if necessary, deactivating the motion sensor. As long as the ID transmitter is in the vehicle, a timer can be triggered at regular intervals to continuously prevent the motion sensor from reducing the sensitivity and potentially deactivating the communication unit. It is conceivable that the functions could be activated either by the ID transmitter itself (in which case the ID transmitter could inform the vehicle accordingly) or by the vehicle.

[0014] The terms "sensitivity" (radio sensitivity) of the ID transmitter's communication unit correlate with the electrical energy required for the ID transmitter's radio communication. In normal mode, the communication unit of the ID transmitter therefore requires more electrical energy than in a reduced state, i.e., when the sensitivity of the communication unit of the ID transmitter is reduced.

[0015] Furthermore, in a method for controlling a mobile identification transmitter for a vehicle's security system, the invention provides that the at least one position of the mobile identification transmitter relative to the vehicle is only checked when the motion sensor detects no movement of the mobile identification transmitter. This reduces the effort and computing power required to execute the method. The method only needs to check the at least one position of the mobile identification transmitter relative to the vehicle and activate certain functions when the motion sensor is about to switch off the ID transmitter or the communication unit.

[0016] Furthermore, the invention, in a method for controlling a mobile identification transmitter for a vehicle's security system, provides that the at least one location position of the mobile identification transmitter relative to the vehicle comprises a first location position inside the vehicle and / or a second location position outside the vehicle. This allows for a reliable distinction between different functionalities of the identification transmitter relative to the vehicle, namely those outside and inside the vehicle. Outside the vehicle, the function involves unlocking and / or locking the vehicle's security system. Inside the vehicle, the function involves verifying an engine start and / or transmitting personal data, such as settings for vehicle accessories.Inside the vehicle, the position-dependent functions of the ID transmitter ensure that the ID transmitter can perform its functionality, even in an energy-saving manner, without completely or at least permanently preventing the motion function of the motion sensor during the transition from inside to outside.

[0017] Furthermore, within the scope of the invention, in a method for controlling a mobile identification transmitter for a vehicle's safety system, it is conceivable that the at least one function is activated when a first position of the mobile identification transmitter inside the vehicle is detected. Thus, the problem according to the invention is specifically addressed inside the vehicle, preferably without impairing the functionality of the identification transmitter outside the vehicle.

[0018] Furthermore, in a method for controlling a mobile identification transmitter for a vehicle's security system, the invention may provide that the at least one function includes putting the mobile identification transmitter into a sleep mode, particularly for a specific period of time. Sleep mode can mean that the ID transmitter, especially the at least one communication unit, has reduced sensitivity but is not completely switched off. This ensures that the vehicle can always reliably recognize the (authorized) ID transmitter inside the vehicle.

[0019] Furthermore, in a method for controlling a mobile identification transmitter for a vehicle's security system, the invention may provide that the at least one function includes the following functions: a first function to control, in particular to reduce, the sensitivity of the at least one communication unit and / or to deactivate the motion sensor, and / or a second function to start a timer, in particular for a specific period of time, wherein the timer serves, in particular, to reduce the sensitivity of the at least one communication unit for a specific period of time and / or to deactivate the motion sensor for a specific period of time. Reduced sensitivity ensures the functionality of the ID transmitter inside the vehicle.Setting a timer allows for a time limit to be set for the functions, which can be particularly advantageous when changing the location and thus the functionalities of the identification transmitter in relation to the vehicle, in order not to impair the motion function of the motion sensor outside the vehicle.

[0020] Furthermore, in a method for controlling a mobile identification transmitter for a vehicle's security system, the invention can provide that the at least one function includes a second function to start a timer, in particular for a specific period of time. After the timer expires, a check of at least one position of the mobile identification transmitter relative to the vehicle is performed, and the timer is restarted, in particular triggered, when a first position of the mobile identification transmitter inside the vehicle is detected after the timer has expired. This ensures that the functionality of the identification transmitter is maintained as long as it is inside the vehicle. The trigger function can also reduce the timer duration to allow for a faster change in the functionality of the identification transmitter relative to the vehicle from inside to outside.

[0021] Furthermore, the invention, in a method for controlling a mobile identification transmitter for a vehicle's security system, provides that data communication is carried out via a radio link, in particular a low-frequency radio link. The low-frequency radio link enables data communication between the ID transmitter and the security system over a limited range, optionally with distance detection between the ID transmitter and the vehicle. Thus, the passive keyless entry functionality of the ID transmitter can be ensured with increased security.

[0022] Furthermore, the invention, in a method for controlling a mobile identification transmitter for a vehicle's security system, provides that data communication is carried out with a range of up to 2 m, preferably 1 m. This prevents unintentional and / or unauthorized remote activation of the data communication.

[0023] Furthermore, in a method for controlling a mobile identification transmitter for a vehicle's security system, the invention may provide that the data communication serves to transmit an identification code from the mobile identification transmitter to the vehicle's security system. Using this identification code, the user's access authorization can be verified (functionality outside the vehicle) and / or the engine start can be enabled (functionality inside the vehicle).

[0024] Furthermore, the invention can provide, in a method for controlling a mobile identification transmitter for a vehicle's security system, that a tilt switch, a position sensor, and / or an acceleration sensor is used as the motion sensor. Simple electromechanical or sensitive electronic tilt switches are conceivable as tilt switches. Position sensors use simple mechanical elements to infer movement from a change in position. Acceleration sensors can be implemented simply and cost-effectively.

[0025] Furthermore, the invention, in a method for controlling a mobile identification transmitter for a vehicle's security system, can provide that data communication is carried out at regular intervals. Thus, the vehicle's security system can essentially scan the environment for an authorized ID transmitter.

[0026] Furthermore, it is conceivable that the vehicle's security system could initiate data communication, preferably at regular intervals. In this way, the vehicle's security system could scan the surroundings for an authorized ID transmitter and passively initiate data communication from the ID transmitter's perspective (without pressing a button on the ID transmitter) when an ID transmitter is detected in the vehicle's vicinity.

[0027] Furthermore, it is conceivable that the vehicle's security system could send a wake-up signal and / or an ID query signal, preferably at regular intervals. On the one hand, it is conceivable that the vehicle's security system could first send a short signal simply to wake the ID transmitter and then, on the other hand, perform an ID query. Alternatively, it is conceivable that the vehicle's security system could simultaneously send a slightly longer signal to both wake and verify the ID transmitter.

[0028] Furthermore, the invention provides for a method for controlling a mobile identification transmitter for a vehicle's security system in that the verification of the mobile identification transmitter's position relative to the vehicle is carried out at a safety distance, wherein the safety distance is smaller, preferably at least 10 times smaller, than the data communication range, and preferably the safety distance is a maximum of 10 cm. Thus, the position verification can be carried out with increased security against unauthorized access and / or incorrect activation.

[0029] Furthermore, it is conceivable that Bluetooth and / or NFC technology could be used to verify the initial location of the mobile identification device within the vehicle. This would allow for location verification while maintaining a safe distance. NFC technology utilizes magnetic fields for inductive or near-field coupling (NFC). Data transmission and power supply are achieved via the magnetic near-field of coils in a reader (e.g., on the vehicle side) and a tag (e.g., on the ID transmitter side).

[0030] Furthermore, the problem according to the invention is solved by a system with a mobile identification transmitter and a vehicle security system, wherein the mobile identification transmitter has the following elements: at least one communication unit for establishing at least one data communication with the security system, and a motion sensor for detecting movement of the mobile identification transmitter, wherein the motion sensor is configured to control the at least one communication unit depending on the movement of the mobile identification transmitter, in particular to switch it off when the motion sensor does not detect movement of the mobile identification transmitter, wherein a detection unit is provided for determining at least one location position of the mobile identification transmitter relative to the vehicle, and wherein the detection unit is configured toThe system according to the invention achieves at least one function in the mobile identification transmitter depending on the at least one location of the mobile identification transmitter relative to the vehicle. The same advantages are achieved with the system according to the invention as described above in connection with the method according to the invention. These advantages are fully referenced herein.

[0031] The data acquisition unit can be implemented at least partially within the communication unit on the ID transmitter side and / or at least partially within the vehicle's security system. Furthermore, it is conceivable that the data acquisition unit can be implemented independently of the communication unit in the ID transmitter, both on the ID transmitter side and on the vehicle's security system side.

[0032] Furthermore, the invention can provide a system with a control unit designed to carry out a process that can proceed as described above. Thus, the advantages of the inventive method can be achieved using the inventive system. With the aid of such a control unit, even known systems can be upgraded with the functionality of the invention.

[0033] Furthermore, the invention can provide that the control unit is located within the mobile identification transmitter and / or within the vehicle's security system, and / or that the control unit comprises control electronics within the mobile identification transmitter and / or control electronics within the vehicle's security system. Thus, the functionality according to the invention can be flexibly implemented by the ID transmitter and / or the vehicle's security system.

[0034] Furthermore, the invention can provide that the detection unit is located within the mobile identification transmitter and / or within the vehicle's security system, and / or that the detection unit has a detection element within the mobile identification transmitter and / or a detection element within the vehicle's security system. This allows the location-dependent functions to be implemented flexibly by the ID transmitter and / or the vehicle's security system.

[0035] Furthermore, the problem according to the invention is solved by a mobile identification transmitter with a control unit designed to control the mobile identification transmitter according to a method that can proceed as described above. The mobile identification transmitter according to the invention achieves the same advantages described above in connection with the method and / or system according to the invention. These advantages are fully referenced herein.

[0036] Further advantages, features, and details of the invention will become apparent from the following description, in which exemplary embodiments of the invention are described in detail with reference to the drawing. The features mentioned in the claims and in the description can each be essential to the invention individually or in any combination. The drawing shows: Figure 1 shows a schematic side view of a vehicle with a system according to the invention.

[0037] In the figure description, identical reference symbols are used for the same technical features even for different embodiments.

[0038] The Figure 1 This is intended to serve as an explanation of a method according to the invention. The method according to the invention serves to control a mobile identification transmitter 10, which is located outside (below in Figure 1 ) or within (above in the Figure 1 ) of a vehicle 100 can be located, as is described in the Figure 1 As indicated, the mobile identification transmitter 10 can also be referred to as an ID transmitter or simply as a key. The mobile identification transmitter 10 is intended for data communication (ID) with a security system 101 of the vehicle 100.

[0039] The mobile identification transmitter 10 comprises the following elements: at least one communication unit 11 to establish at least one data communication ID with the security system 101, and a motion sensor 12 to detect movement of the mobile identification transmitter 10. The motion sensor 12 serves to control the at least one communication unit 11 depending on the movement of the mobile identification transmitter 10, in particular to switch it off when the motion sensor 12 does not detect any movement of the mobile identification transmitter 10. The motion sensor 12 serves to protect the ID transmitter against a so-called "relay station attack". If the motion sensor 12 does not detect any movement for a certain period of time, the communication unit 11 of the ID transmitter is deactivated to prevent the ID transmitter from being used for unauthorized opening of the vehicle 100 when not in use and also to save energy.

[0040] Within the scope of the invention, a check of at least one location position I, A of the mobile identification transmitter 10 in relation to the vehicle 100 is carried out, wherein at least one function F1, F2 of the mobile identification transmitter 10 is activated depending on the at least one location position I, A of the mobile identification transmitter 10 in relation to the vehicle 100.

[0041] In principle, it is conceivable that the communication unit 11 can provide two different functionalities of the mobile identification transmitter 10 in relation to the vehicle 100, namely outside the vehicle 100 and inside the vehicle 100. Outside the vehicle 100, the communication unit 11 can be used to unlock the vehicle 100. Inside the vehicle 100, the communication unit 11 can verify an engine start and / or deactivate an immobilizer. Furthermore, the communication unit 11 can perform additional functions inside the vehicle 100 to increase user convenience and safety. For the two different functionalities of the mobile identification transmitter 10 outside and inside the vehicle 100, the communication unit 11 can have two separate interfaces or a common interface, e.g., in the form of a transmitter and / or receiver unit(s).

[0042] The verification of the location position I, A of the mobile identification transmitter 10 in relation to the vehicle 100 can be carried out using the communication unit 11 or, if necessary, a further interface of the communication unit 11. It is also conceivable that a separate recording unit 20 with its own interface could be provided for verifying the location position I, A of the mobile identification transmitter 10 in relation to the vehicle 100.

[0043] The invention also provides that the verification of the location position I, A of the mobile identification transmitter 10 relative to the vehicle can be carried out at a safety distance RA, wherein the safety distance RA is smaller, preferably at least 10 times smaller, than the range of the data communication ID, and preferably the safety distance RA is a maximum of 10 cm. Bluetooth and / or NFC technology can be used for this purpose.

[0044] Within the scope of the invention, it is possible for the detection unit 20 to be implemented within the mobile identification transmitter 10 and / or within the security system 101 of the vehicle 100. Furthermore, it is conceivable that the detection unit 20 can have a detection element 21 within the mobile identification transmitter 10 and / or a detection element 22 within the security system 101 of the vehicle 100. The detection elements 21 and 22 can communicate with each other.

[0045] The inventive concept lies in the fact that, depending on the at least one location position I, A of the mobile identification transmitter 10 relative to the vehicle 100, at least one, preferably several, function(s) F1, F2 is / are activated in the mobile identification transmitter 10. As mentioned above, the location positions I, A can comprise a location position I inside the vehicle 100 and a location position A outside the vehicle 100.

[0046] Within the framework of the inventive method, it is further conceivable that the at least one location position I, A of the mobile identification transmitter in relation to the vehicle 100 is only checked when the motion sensor 12 does not detect any movement of the mobile identification transmitter 10.

[0047] Within the framework of the inventive method, it is further conceivable that the at least one function F1, F2 is activated when a first location position I of the mobile identification transmitter 10 within the vehicle 100 has been detected.

[0048] The at least one function F1, F2 is intended to ensure that the mobile identification transmitter 10 can always be identified by the vehicle 100, particularly inside the vehicle 100, and reliably used to start an engine and / or transmit personal data, despite the motion function of the motion sensor 12. In other words, the at least one function F1, F2 serves to prevent the complete deactivation of the ID transmitter by the motion sensor 12 inside the vehicle 100, while still potentially saving energy. Advantageously, the motion sensor 12 can also remain switched on inside the vehicle 100 or be deactivated only for a specific time t.

[0049] The at least one function F1, F2 can, for example, include a first function F1 to reduce the sensitivity of the communication unit 11 of the ID transmitter inside the vehicle 100, which also leads to lower energy consumption, and / or to deactivate the motion sensor 12. In other words, the first function F1 can serve to put the mobile identification transmitter 10 into a sleep mode, particularly for a specific time t. Inside the vehicle 100, even a low sensitivity of the communication unit 11 for data communication ID with the security system 101, e.g., via LF communication, is sufficient for the ID transmitter to be detected by the vehicle 100.

[0050] Furthermore, it is conceivable that the first function F1 could include deactivating the interface of the ID transmitter for functionality outside the vehicle 100 if the motion sensor 12 does not detect any movement of the ID transmitter. Thus, deactivating the motion sensor 12 within the scope of the first function F1 could even be avoided, in order to maintain the motion function of the motion sensor 12 outside the vehicle 100. This can be particularly advantageous when moving from inside the vehicle 100 to the outside.

[0051] A second function, F2, allows a timer to be set on the ID transmitter, which executes the first function, F1, only for a specific duration t. This function might, for example, reduce the sensitivity of the communication unit 11 and, if necessary, deactivate the motion sensor 12. As long as the ID transmitter is located in the vehicle 100, the timer T can be renewed or triggered at regular intervals after the location I, A of the mobile identification transmitter 10 has been checked in relation to the vehicle 100.

[0052] Within the scope of the invention, it is conceivable that the functions F1 and F2 are activated by the ID transmitter itself (in which case the ID transmitter can inform the vehicle 100 accordingly) or by the vehicle 100. For this purpose, a control unit 30 can be provided, which can be implemented within the mobile identification transmitter 10 and / or within the security system 101 of the vehicle 100. Furthermore, it is conceivable that the control unit 30 can include control electronics 31 within the mobile identification transmitter 10 and / or control electronics 32 within the security system 101 of the vehicle 100.

[0053] The ID data communication can be carried out via a radio connection, in particular a low-frequency radio connection. The ID data communication can preferably be provided with a range of up to 2 m, preferably 1 m, to prevent unintentional remote activation of the ID data communication. The ID data communication can be used to transmit an identification code from the mobile identification transmitter 10 to the vehicle's security system 101. Using the identification code, the user's access authorization can be verified (first functionality of the ID transmitter outside the vehicle 100) and / or the engine start can be authorized (second functionality of the ID transmitter inside the vehicle 100).

[0054] A tilt switch, a position sensor and / or an acceleration sensor can be used as motion sensor 12.

[0055] To establish the first functionality of the ID transmitter outside the vehicle 100 and / or the second functionality of the ID transmitter inside the vehicle 100, the ID data communication can be carried out at regular intervals.

[0056] As part of the first functionality of the ID transmitter outside the vehicle 100, the security system 101 of the vehicle 100 can scan the surroundings for an authorized ID transmitter. For this purpose, the security system 101 of the vehicle 100 can initiate the ID data communication, preferably at regular intervals. To activate, and in particular to unlock, the security system 101, the security system 101 can send a wake-up signal and / or an ID query signal, preferably at regular intervals.

[0057] A corresponding system 110 with a mobile identification transmitter 10 and a security system 101 of a vehicle 100 also represents an aspect of the invention, wherein the mobile identification transmitter 10 has at least one communication unit 11 for establishing at least one data communication ID with the security system 101, and a motion sensor 12 for detecting movement of the mobile identification transmitter 10. The motion sensor 12 is designed to control the at least one communication unit 11 depending on the movement of the mobile identification transmitter 10, in particular to switch it off when the motion sensor 12 does not detect any movement of the mobile identification transmitter 10.

[0058] Within the framework of system 110, a detection unit 20 is provided, which can be designed as described above, to determine at least one location position I, A of the mobile identification transmitter 10 in relation to the vehicle 100, and wherein the detection unit 20 is designed to activate at least one function F1, F2 at the mobile identification transmitter 10 depending on the at least one location position I, A of the mobile identification transmitter 10 in relation to the vehicle 100.

[0059] Furthermore, within the framework of system 110 a control unit 30 may be provided, which may be designed as described above and which is designed to carry out a procedure which may proceed as described above.

[0060] Finally, a corresponding mobile identification transmitter 10 with a control unit 30 represents a further aspect of the invention, wherein the control unit 30 is designed to control the mobile identification transmitter 10 according to a method which can proceed as described above.

[0061] The preceding explanation of the embodiments describes the present invention exclusively by way of examples. Reference symbol list

[0062] 10 Mobile identification transmitter 11 Communication unit 12 Motion sensor 20 Recording unit 21 Recording element 22 Recording element 30 Control unit 31 Control electronics 32 Control electronics 100 Vehicle 101 Safety system 110System ALocation position, second location position of the mobile identification device outside the vehicle; ILocation position, first location position of the mobile identification device inside the vehicle ID data communication F1 function, first function; F2 function, second function RA safety distance, S sensitivity of the communication unit

Claims

1. Method for controlling a mobile identification transmitter (10) for a safety system (101) of a vehicle (100), wherein the mobile identification transmitter (10) has the following elements: at least one communication unit (11) for establishing at least one data communication (ID) with the security system (101), and a motion sensor (12) to detect movement of the mobile identification transmitter (10), wherein the motion sensor (12) serves to actuate the at least one communication unit (11) as a function of the movement of the mobile identification transmitter (10), in particular to switch it off if the motion sensor (12) does not detect any movement of the mobile identification transmitter (10), wherein a check (RA) of at least one local position (I, A) of the mobile identification transmitter (10) in relation to the vehicle (100) is performed, wherein at least one function (F1, F2) is activated in the mobile identification transmitter (10) as a function of the at least one local position (I, A) of the mobile identification transmitter (10) in relation to the vehicle (100), wherein the check (RA) of the local position (I, A) of the mobile identification transmitter (10) in relation to the vehicle (100) is carried out at a safety distance (RA), and wherein the safety distance (RA) is smaller than the range of data communication (ID).

2. Method according to claim 1, characterized in that the at least one local position (I, A) of the mobile identification transmitter (10) in relation to the vehicle (100) is only checked when the motion sensor (12) does not detect any movement of the mobile identification transmitter (10), and / or that the at least one local position (I, A) of the mobile identification transmitter (10) in relation to the vehicle (100) provides a first local position (I) inside the vehicle (100) and / or a second local position (A) outside the vehicle (100).

3. A method according to any one of the preceding claims, characterized in that the at least one function (F1, F2) is activated when a first local position (I) of the mobile identification transmitter (10) within the vehicle (100) is detected, and / or that the at least one function (F1, F2) provides that the mobile identification transmitter (10) is transferred to a sleep mode, in particular for a specific time (t).

4. A method according to any one of the preceding claims, characterized in that the at least one function (F1, F2) provides the following functions (F1, F2): a first function (F1) for controlling, in particular reducing, the sensitivity (S) of the at least one communication unit (11) and / or deactivating the motion sensor (12), and / or a second function (F2) to start a timer (T), in particular for a specific time (t), wherein, in particular, the timer (T) serves to reduce the sensitivity (S) of the at least one communication unit (11) for a specific time (t) and / or to deactivate the motion sensor (12) for a specific time (t).

5. A method according to any one of the preceding claims, characterized in that the at least one function (F1, F2) provides a second function (F2) in order to start a timer (T), in particular for a specific time (t), wherein a check (RA) of at least one position (I, A) of the mobile identification transmitter (10) with respect to the vehicle (100) is carried out after the timer (T) has elapsed, and wherein the timer (T) is restarted, in particular triggered, when a first position (I) of the mobile identification transmitter (10) within the vehicle (100) is detected after the timer (T) has elapsed.

6. A method according to any one of the preceding claims, characterized in that the data communication (ID) is carried out via a radio link, in particular via a low-frequency (LF) radio link, and / or that the data communication (ID) is carried out with a range of up to 2 m, preferably 1 m, and / or that the data communication (ID) is used to transmit an identification code from the mobile identification transmitter (10) to the security system (101) of the vehicle (100).

7. A method according to any one of the preceding claims, characterized in that a tilt switch, a position sensor and / or an acceleration sensor is / are used as the motion sensor (12).

8. A method according to any one of the preceding claims, characterized in that data communication (ID) is carried out at regular intervals, and / or that the security system (101) of the vehicle (100) starts the data communication (ID), preferably at regular intervals, and / or that the security system (101) of the vehicle (100) transmits a wake-up signal and / or an ID request signal, preferably at regular intervals.

9. A method according to any one of the preceding claims, characterized in that the safety distance (RA) is at least 10 times smaller than the range of data communication (ID), whereby the safety distance (RA) is preferably a maximum of 10 cm.

10. A method according to any one of the preceding claims, characterized in that a Bluetooth and / or NFC technology is used to check a first local position (I) of the mobile identification transmitter (10) within the vehicle (100).

11. System (110) with a mobile identification transmitter (10) and a security system (101) of a vehicle (100), wherein the mobile identification transmitter (10) has the following elements: at least one communication unit (11) for establishing at least one data communication (ID) with the security system (101), and a motion sensor (12) to detect movement of the mobile identification transmitter (10), wherein the motion sensor (12) is arranged to actuate the at least one communication unit (11) as a function of the movement of the mobile identification transmitter (10), in particular to switch it off if the motion sensor (12) does not detect any movement of the mobile identification transmitter (10), wherein a detection unit (20) is provided in order to determine at least one local position (I, A) of the mobile identification transmitter (10) in relation to the vehicle (100), and wherein the detection unit (20) is arranged to activate at least one function (F1, F2) at the mobile identification transmitter (10) as a function of the at least one local position (I, A) of the mobile identification transmitter (10) in relation to the vehicle (100), and wherein a control unit (30) is provided which is adapted to carry out a method according to one of the preceding claims.

12. System (110) according to the preceding claim, characterized in that the control unit (30) is provided within the mobile identification transmitter (10) and / or within the security system (101) of the vehicle (100), and / or that the control unit (30) has control electronics (31) within the mobile identification transmitter (10) and / or control electronics (32) within the safety system (101) of the vehicle (100).

13. System (110) according to one of the preceding claims, characterized in that the detection unit (20) is provided within the mobile identification transmitter (10) and / or within the security system (101) of the vehicle (100), and / or in that the detection unit (20) has a detection element (21) within the mobile identification transmitter (10) and / or a detection element (22) within the security system (101) of the vehicle (100).

14. Mobile identification transmitter (10) with a control unit (30), which is designed to control the mobile identification transmitter (10) according to a method according to one of the preceding claims.