Method for reliably identifying a locked position of a movable component of a vehicle

Abstract

The invention relates to a method for identifying a locked position of a movable component (110) of a vehicle (100), in particular of an automatically operable vehicle, comprising the following steps: receiving, by a control unit (20), a first position signal as a first locking criterion from a first signal source, the first locking criterion comprising at least one locked position of a vehicle lock (11) for the movable component (110); supplementing, by the control unit (20), the received first position signal with a conditional check instruction, wherein the conditional check instruction comprises checking at least one second position signal as a second locking criterion after identifying the first position signal, wherein the first locking criterion is still fulfilled; receiving, by the control unit (20), the second position signal as the second locking criterion from a second signal source, wherein the second signal source is different from the first signal source and the second position signal is associable with the movable component; outputting, by the control unit (20), a confirmation signal in the event of the fulfillment of both locking criteria.

Description

Technical Field

[0001] This invention relates to the field of vehicle locking systems, and to a method for identifying the locking position of a movable part of a vehicle according to an independent method claim, a computer program product according to another independent claim, and a vehicle locking system according to an independent system claim. Background Technology

[0002] Vehicle locking systems are typically used to reliably lock and correspondingly unlock movable parts of a vehicle. Therefore, this vehicle locking system is a vehicle safety system, and it must operate reliably to protect vehicle occupants. According to existing technology, the proper locking and / or unlocking of movable parts of the vehicle is typically checked via door contact switches. Here, the signal from the door contact switch is converted, for example, into a visual and / or auditory cue, thereby recognizing that the door is open and / or unlocked. Furthermore, it is known that, as an alternative to door contact switches, switches are integrated into corresponding locks of multiple movable parts. These switches check the position of the locking mechanism and subsequently provide signals similar to those of the door contact switches.

[0003] A method is known from DE 10 2010 052 582 A1, in which the open position of a vehicle door is identified by means of a door contact switch. If an occupant activates an electrically driven vehicle lock in order to open the door, the door contact switch is checked to identify whether the door is already open.

[0004] A method for identifying a locked state is known from DE 10 2016 202 975 A1, which outputs a visual alarm when a vehicle door is not properly locked, wherein a corresponding signal is provided by a door contact switch on the B-pillar or on the door hinge.

[0005] A drawback of existing technology is that known systems can be manipulated through the simplest means. For example, it is possible to intentionally or unintentionally actuate the door lock switch from the outside, even if the door is not properly locked. Furthermore, even if the door is not engaged in the locking mechanism, the locking mechanism of the door lock can still be moved to the locked state from the outside. This could create the illusion that the vehicle doors are locked, when in reality the doors are not locked at all.

[0006] This issue becomes particularly important in vehicles that can operate autonomously, especially in vehicles without a driver. Summary of the Invention

[0007] The object of this invention is to overcome, at least in part, the known disadvantages of the prior art. In particular, the object of this invention is to achieve more reliable identification of door locking, which provides better protection against manipulation.

[0008] The above objective is achieved by a method having the features described in the independent method claims, a computer program product according to the corresponding independent claims, and a system having the features described in the independent system claims.

[0009] In particular, other advantageous design solutions are given in the dependent claims and the specification. It should be noted that the features listed in the claims can be combined with each other in any technically reasonable manner, and other design solutions of the invention are elucidated. The features and details described in conjunction with the method according to the invention also apply to the descriptions in conjunction with the vehicle locking system according to the invention and / or the computer program product according to the invention, and vice versa, so that the disclosure of individual aspects of the invention can always be cross-referenced.

[0010] According to the present invention, a method for identifying the locked position of movable parts of a vehicle, particularly an automatically operating vehicle, is provided, wherein the method includes the following steps:

[0011] - The control unit receives a first position signal from a first signal source as a first locking criterion, the first locking criterion including at least one locked position for the vehicle lock of the movable part;

[0012] - The control unit supplements the received first position signal with a conditional verification instruction, wherein the conditional verification instruction includes verifying at least one second position signal as a second locking criterion after identifying the first position signal, wherein the first locking criterion is still satisfied.

[0013] - The control unit receives a second position signal from a second signal source as a second locking criterion, wherein the second signal source is different from the first signal source, and the second position signal can be associated with the movable part;

[0014] - If both locking criteria are met, a confirmation signal is output through the control unit.

[0015] The methods, steps, processes, and procedures described herein should not be construed as requiring them to be performed in a specific order as discussed or shown, unless otherwise specified. Method steps may be performed at least partially simultaneously or sequentially in time, wherein the order of method steps is not limited to the order defined by numbering, allowing individual steps to be performed in different orders. It should also be understood that additional or alternative steps may be applied.

[0016] Therefore, the present invention mainly uses multiple factors, especially two-factor inspection of position signals that are different from each other, wherein these position signals come from different signal sources.

[0017] In the first step, a control unit receives a first position signal from a first signal source as a first locking criterion, which includes at least one locked position of the vehicle lock for the movable part. The locking position of the movable part, or the vehicle lock for the movable part, is obtained in the form of a position signal from the first signal source and presented as the first locking criterion for the movable part. According to the invention, the control unit may be a (higher-level) control unit of the vehicle, a lock control unit, or a server. In any case, the control unit is signal-connected to the first signal source (wired and / or wireless).

[0018] In another step, the control unit supplements the received first position signal with a conditional verification instruction, wherein the conditional verification instruction includes verifying at least one second position signal, which serves as a second locking criterion, after identifying the first position signal, wherein the first locking criterion is still satisfied. Thus, the conditional verification instruction is used to precondition at least one other locking criterion, whereby the first locking criterion must still be satisfied, only when the first locking criterion is satisfied, i.e., when the locked position of the lock has been identified. Therefore, the relationship between the two signals is not "OR" but "AND". At this time, when checking / verifying the second locking criterion, the first locking criterion must still be satisfied. This prevents checking the signal source in an alternative manner, thus making it impossible, for example, to output a confirmation signal with only a single position signal. Accordingly, identifying the locked position in which the lock locks the movable part is always a first necessary condition for outputting a confirmation signal.

[0019] In another step, a second position signal is received from a second signal source as a second locking criterion by the control unit. This second signal source differs from the first signal source, and the second position signal can be associated with the position of the movable part, particularly the locked position. Thus, the second signal source is different from the first signal source. Therefore, it is at least difficult to manipulate the signal. Even if the first signal element provides a position signal confirming the lock's locked position, verifying the first locking criterion by means of the second signal source requires another signal from a different signal source. Therefore, the second position signal can, for example, be independent of the lock's locked position. Importantly according to the invention, the second position signal can also be associated with the movable part, particularly the locked position. Therefore, the second position signal must be correlated with the position of the movable part, particularly the locked position, so that the locked position of the movable part can be inferred. The second position signal can, for example, be the position of the movable part relative to the vehicle body.

[0020] A confirmation signal is generated / output by the control unit only when the second position signal is also received by the control unit and the second locking criterion is met, thereby confirming the completion of the conditional verification command. Therefore, both locking criteria must be met in order to output the confirmation signal. According to the invention, the confirmation signal indicates that the movable parts of the vehicle are in the locked position. Here, the confirmation signal can be an output signal, particularly an auditory, visual, and / or tactile signal (vibration). This output signal can be used to disable or restrict other vehicle functions. For example, it can affect engine starting, acceleration, or trigger other restrictions to stop or brake vehicle movement.

[0021] Therefore, an advantage of this invention is that it can reliably identify the locked state of movable parts of a vehicle. Additionally, it can detect the failure or interference of at least one of the signal sources.

[0022] Within the scope of this invention, movable parts may be side doors, sliding doors, wing doors, hatches, refueling caps, charging plug caps, rear hatches, and / or engine hoods / front covers.

[0023] The control unit may have: at least one computing unit for processing signals or data; at least one storage unit for storing signals or data; at least one interface to a signal source and / or output unit for reading position signals from the signal source or for outputting data or control signals to the output unit; and / or at least one communication interface for reading or outputting data, which is programmed into a communication protocol. The computing unit may be, for example, a signal processor, a microcontroller, etc., and the storage unit may be flash memory, EEPROM, or magnetic storage. The communication interface may be designed to read or output data wirelessly and / or via wired means, wherein a communication interface capable of reading or outputting wired data may, for example, electrically or optically read such data from or output such data to a corresponding data transmission line. It is particularly conceivable that the control unit and / or computing unit be located outside the vehicle. The use of IT infrastructure in the form of cloud computing or similar network-based computer systems is recommended. This solution can be particularly advantageous in autonomous vehicles because it enables remote maintenance or remote operation and monitoring. This reduces the risks associated with operation at or within the vehicle.

[0024] The control unit can be designed to run diagnostic programs. This enables the verification of whether the one or more signal sources are in a usable state or whether there is a potential functional failure. According to the diagnostic program, maintenance can be achieved by recalibrating the system, resetting system parameters, or displaying possible faults if necessary. Therefore, it is conceivable that storing preset positions, preferably slave measurements of the master lock, and comparing them with each other can detect deviations and infer possible functional failures. Thus, changes, particularly those caused by wear or external environmental influences, can be identified during the product lifecycle and taken into account in position determination. This improves the reliability of position identification.

[0025] Advantageously, the control unit outputs an error signal if the first and / or second locking criteria are not met. If the first and / or second signal sources do not send a position signal, or if the control unit does not receive such a signal, the error signal can identify that the movable part is not in the locked position, meaning the locked position cannot be verified / secured. Accordingly, it can reliably determine not only that the movable part is in the locked position, but also reliably determine that the movable part is not in the locked position. Furthermore, it is conceivable that the error signal can be used to identify existing sources of failure, i.e., which signal source is not providing a position signal. This allows, for example, the identification of possible manipulations or the identification of the effects of unexpected interference, thereby further improving reliability.

[0026] Within the scope of this invention, the control unit can determine the time interval between the first position signal and the second position signal as a first time standard, and compare it with a fixed second time standard, preferably stored in the control unit. If the first time standard does not conform to the second time standard (there is a deviation), the control unit outputs a corresponding error signal. Therefore, reliability can be further improved. Here, the time-related verification can be part of the conditional verification instruction. This means that within the conditional verification instruction, it is verified whether the time standard is met. A deviation, especially an excessively long, time interval between the two position signals can indicate manipulation or malfunction.

[0027] According to the present invention, the first signal source is conceivable to be a locking mechanism sensor of the vehicle lock, particularly a locking claw sensor, wherein preferably, it identifies a locking position in which the locking claw locks the rotating fork of the vehicle lock. The locking mechanism sensor according to the present invention can be, for example, an inductive, capacitive, magnetic, or optically operating sensor. Furthermore, microswitches or Hall effect sensors can be used, in particular, to detect the position of the locking mechanism, particularly the locking position. Preferably, the locking position can be a pre-lock and / or main lock position of the locking mechanism. Occupying the locking position, particularly the pre-lock and / or main lock position, enables the determination of whether the locking retainer of the movable part engages with the locking mechanism of the vehicle lock, thereby describing a first locking criterion through the pre-lock or main lock position.

[0028] Furthermore, it is conceivable that the second signal source is a contact switch of the movable part, particularly a contact switch that cannot be accessed from the outside. Preferably, the contact switch is a door contact switch, wherein the door contact switch obtains the locked position of the door. This type of contact switch is typically arranged in the area of ​​the support or suspension of the movable part, or on the side opposite the support where the lock is usually located. It is particularly advantageous according to the invention that the contact switch cannot be accessed by a person, thereby making it at least more difficult or preventing manipulation. For this purpose, the contact switch according to the invention can, for example, be arranged in the area of ​​the door support / door suspension, and at least partially covered by parts of the vehicle body. Particularly preferably, multiple contact switches can be arranged at different locations on the movable part, thereby making it at least more difficult to misoperate or intentionally maliciously manipulate.

[0029] Advantageously, the first or second signal source may be a locking assist device for the vehicle lock and / or a drive device for the movable part. The locking assist device according to the invention is used to transfer the locking mechanism of the vehicle lock from a pre-locked position to a master lock position. For this purpose, the locking assist device can be specifically connected to or work in conjunction with a rotating lock fork, thereby causing the rotating lock fork to rotate about its axis of rotation toward the master lock. However, the drive device for the movable part according to the invention can be designed not only as a door and / or hatch drive device but also to transfer the movable part, preferably a door, from an open state to a locked state or vice versa. Furthermore, the drive device for the movable part can also be understood as an opening device for the movable part, wherein the opening device can move the movable part at least from a locked state to a partially open state and / or vice versa. The drive device according to the invention and / or the opening device according to the invention typically have a position sensing mechanism capable of inferring the position of the movable part.

[0030] Within the scope of this invention, the second signal source can be a lock-holding sensor. The lock-holding sensor according to the invention identifies whether the movable part is in a locked position, particularly a locked position, and thereby generates a reliable second position signal. Particularly preferred is that the lock-holding sensor is arranged at the movable part or vehicle in a manner that prevents external human access or interference. This further reduces intentional or unintentional manipulation, thereby further improving reliability and, consequently, security.

[0031] According to the invention, the second signal source is conceivable as a force sensor for identifying the sealing pressure of the movable part. Here, the force sensor identifies the pressure acting on the seal, particularly in the form of door sealing pressure, which is generated by the locking state of the movable part. Here, the seal can be located at the movable part or the vehicle. Here, the force sensor is located at the seal and / or at least partially within the seal. Furthermore, the force sensor can be arranged point-by-point or comprehensively at / within the seal. Thus, the force sensor can acquire the locking position of the movable part and thereby provide a second position signal that can be reliably used as a second locking criterion. It is particularly advantageous here to protect the force sensor substantially from interfering environmental influences, thereby improving reliability and reducing the probability of failure.

[0032] It is conceivable that the second signal source is an image acquisition unit of the vehicle, wherein the image acquisition unit acquires the position of the movable part. Here, the image acquisition unit may be arranged in and / or within the vehicle, for example, at the rear hatch or rearview mirror. In particular, the image acquisition unit may be integrated into the rearview mirror. For example, the image acquisition unit may be designed as a camera and detects the movable part at least locally, thereby identifying at least one locked position of the movable part. It is particularly advantageous here that the locked position cannot be obtained by externally manipulating the image acquisition unit. A correspondingly reliable second signal source is provided for acquiring the locked position of the movable part.

[0033] Advantageously, the second signal source can be a displacement sensor of the movable part, which measures the distance of the movable part relative to the vehicle. Here, the displacement sensor can be arranged, for example, in the hinge of the movable part or within the movable part itself. The sensor measures the distance of the movable part relative to the vehicle, particularly measuring the position or displacement of the movable part after its movement. From this, the position of the movable part, particularly the locked position, can be deduced, thus providing a reliable second locking criterion.

[0034] Within the scope of this invention, a protected transmission channel with end-to-end encryption can be constructed / existed between the control unit and at least the first signal source and / or the second signal source. A protected transmission channel with end-to-end encryption enables reduced manipulation, thereby improving reliability.

[0035] According to another aspect of the invention, protection is claimed for a computer program product. The computer program product according to the invention comprises executable program code, which, when executed by a data processing apparatus, performs the method according to the invention. The program code is preferably stored on a machine-readable medium or a storage medium such as a semiconductor memory, hard disk memory, or optical memory, and is used to perform, implement, and / or manipulate the steps of the method according to the invention, particularly running the program product or computer program on a computer or apparatus such as a control unit.

[0036] According to another aspect of the invention, protection is claimed for a machine-readable medium on which a computer program product to be protected is stored.

[0037] Another aspect of the present invention claims protection for a vehicle locking system for identifying the locking position of a movable part of a vehicle, the vehicle locking system comprising: a vehicle lock for locking the movable part to the vehicle, wherein the vehicle lock may be mounted at the movable part or at the vehicle, the vehicle lock having at least one locking mechanism sensor as a first signal source for acquiring at least one first position signal, particularly in the form of the locking position of the locking mechanism.

[0038] A second signal source, which is different from the first signal source, acquires a second position signal that can be associated with the movable part;

[0039] The vehicle locking system also includes, in particular, a data processing device in the form of a control unit, having a permanent, computer-readable storage medium on which a computer program product according to the invention is stored, wherein the data processing device is at least designed to execute the program code of the computer program product.

[0040] Preferably, the second signal source is constructed as claimed and / or as described in at least one of the dependent claims of the method according to the invention. Attached Figure Description

[0041] Further improvements to the invention will be derived from the following description of several embodiments of the invention schematically illustrated in the accompanying drawings. All features and / or advantages derived from the claims, description, and drawings, including structural details, spatial arrangements, and method steps, can be integral to the invention not only on their own but also in various different combinations. It should be noted that the drawings are illustrative only and should not be construed as limiting the invention in any way.

[0042] The diagram shows:

[0043] Figure 1 A vehicle with a vehicle locking system according to an embodiment of the present invention is schematically shown, and...

[0044] Figure 2 A possible embodiment of the vehicle locking system according to the present invention is shown. Detailed Implementation

[0045] Figure 1 A vehicle is shown having a vehicle locking system according to the invention, with a movable part 110 for vehicle 100. Figure 1 In this illustration, movable parts 110 of the vehicle 100 are schematically depicted as the rear hatch 110, engine hood 110, and side door 110. Each of these movable parts 110 can be associated with a vehicle locking system 10 according to the invention. For this purpose, the movable part 110 may have a lock 11 for locking the movable part 110 to the vehicle 100. Accordingly, the lock 11 within the scope of the invention can be designed as a side door lock, a rear hatch lock, and / or an engine hood lock. Thus, Figure 1 The side door has a lock 11, which is signal-connected to a control unit 20 and a tensioning assist device 30. According to the invention, the tensioning assist device 30 is specifically used to transfer the locking mechanism of the lock 11 from a pre-lock position to a master lock position. According to the invention, the tensioning assist device 30 can be configured as a second signal source. Here, a second position signal can be acquired by the tensioning assist device 30, which generates the second position signal upon reaching the master lock position. This second position signal indicates the locked and subsequently closed position of the movable part 110, i.e., the side door. In addition to the locking mechanism sensor of the lock 11, the second position signal provided by the tensioning assist device 30, together with the first position signal from the locking mechanism sensor of the lock 11, can be used to infer the closed position of the movable part, i.e., the side door 110. Here, the control unit 20 is arranged, for example, in the side door 110. However, according to the invention, the control unit 20 can be arranged anywhere in the vehicle. Here, the control unit can also be the control unit of the motor vehicle lock 11 or the control unit of the vehicle's superior.

[0046] also, Figure 1 A drive mechanism 40 for opening and / or locking the movable part 110 is shown. This type of door drive mechanism 40 is well known from the prior art. Here, the drive mechanism 40 can move the movable part to at least an open or locked position. At the same time, the position of the movable part can be determined by the drive mechanism 40. For this purpose, a position sensor can be provided within the drive mechanism 40. The drive mechanism 40 for opening and / or locking the movable part 110 is also signal-connected to the control unit 20.

[0047] For example, in Figure 1 The diagram also shows contact switches 50 at the two side doors 110 of the vehicle 100. The contact switches 50 according to the invention can be used as a second position signal source, wherein the contact switches 50 are contacted by the movable part 110 in the locked position of the movable part, thereby ensuring the locked position of the movable part 110, i.e., the side door. Advantageously, according to the invention, the contact switches 50 are arranged at the movable part 110 or the body of the vehicle 100 in such a way that they are difficult to operate from the outside. For this purpose, the contact switches 50 are preferably arranged outside the user's range of intervention. At the same time, the contact switches 50 are designed to be actuated preferably only in the locked position of the movable part. This ensures that the second position signal is generated by the contact switches 50 only when the door 110 is locked.

[0048] According to the present invention, the contact switch 50 is also signal-connected to the control unit 20, which is indicated by the dashed line.

[0049] In addition, Figure 1 The image acquisition unit 80 is shown, which can acquire a second position signal, wherein the image acquisition unit 80 can acquire the position of the movable part 110. Specifically, the image acquisition unit 80 is designed to determine at least one locked position of the movable part 110. Thus, the locked position of the movable part 110 can be generated by means of the image acquisition unit 80 as a second position signal for verifying the locked position of the movable part 110. According to the present invention, the image acquisition unit 80 is also signal-connected to the control unit 20, thereby enabling the transmission of the second position signal from the image acquisition unit 80 to the control unit 20.

[0050] Figure 2An embodiment of the vehicle locking system 10 according to the invention is shown. Here, the vehicle locking system comprises a vehicle lock 11, wherein the vehicle lock 11 has a locking mechanism 13, wherein the locking mechanism 13 comprises at least a rotating locking fork and at least one locking pawl. A locking mechanism sensor 12 is provided for the locking mechanism 13, wherein the locked position of the locking mechanism 13 can be detected, in particular, by means of the locking mechanism sensor 12. The locking mechanism 13 is used to lock movable parts of the vehicle, particularly side doors, rear doors, or hoods or sliding doors, to the vehicle / body. Thus, the locked state corresponds to the locked position of the movable parts, wherein the locking mechanism additionally ensures the locked position of the movable parts. For this purpose, the locking mechanism, particularly the rotating locking fork of the locking mechanism, remains engaged with a lock retainer, wherein the lock retainer is preferably arranged at the vehicle body. However, it is also conceivable that the vehicle lock 11 is arranged in the vehicle or body, and the lock retainer is correspondingly located at the movable parts. This is achieved, for example, in a hood lock.

[0051] The vehicle lock 11 is connected to the control unit 20 via signal, where the data connection is shown as a dashed line. Furthermore, in Figure 2 In this embodiment, a lock retainer sensor is provided for the vehicle lock 11. According to the invention, the lock retainer sensor is arranged at the vehicle lock 11 such that the position of the lock retainer within the vehicle lock 11 can be detected. Specifically, the lock retainer sensor 60 can detect a position of the lock retainer corresponding to the locked position of the lock retainer with the locking mechanism 13. Accordingly, the lock retainer sensor 60 and the locking mechanism sensor 12 provide two position signals, which are sent to a data processing device.

[0052] also, Figure 2 A tensioning assist device 30 is shown, which is operatively connected to the vehicle lock 11, particularly the locking mechanism 13. Thus, the tensioning assist device 30 can be used to transfer the locking mechanism from a pre-lock position to a master lock position. Furthermore, it is conceivable that the tensioning assist device 30 uses a third position signal to verify the locking position of the movable part. Correspondingly, the control unit 20 can use at least three position signals to verify the locking position of the movable part.

[0053] List of reference numerals in the attached diagram:

[0054] 10 Vehicle locking system

[0055] 11 Car locks

[0056] 12 Locking Mechanism Sensor

[0057] 13 Locking mechanisms

[0058] 20 Control Unit / Data Processing Device

[0059] 30 Tensioning auxiliary device

[0060] 40 Drive unit

[0061] 50 contact switch

[0062] 60 Locking Retainer Sensor

[0063] 70 Force Sensor

[0064] 80 Image Acquisition Units

[0065] 90 Displacement Sensor

[0066] 100 vehicles

[0067] 110 Movable parts

Claims

1. A method for identifying the locked position of a movable part (110) of a vehicle (100), the method comprising the steps of: - The control unit (20) receives a first position signal from a first signal source as a first locking criterion, the first locking criterion including at least one locked position of the vehicle lock (11) for the movable part (110); - The control unit (20) supplements the received first position signal with a conditional verification instruction, wherein the conditional verification instruction includes verifying at least one second position signal as a second locking criterion after the first position signal is identified, wherein the first locking criterion is still satisfied. - The control unit (20) receives a second position signal from a second signal source as a second locking criterion, wherein the second signal source is different from the first signal source and the second position signal can be associated with the movable part; - If both locking criteria are met, a confirmation signal is output via the control unit (20). - The control unit (20) determines the time interval between the first position signal and the second position signal as the first time standard, and compares the time interval with the fixed second time standard in the control unit (20). If the first time standard does not meet the second time standard, the control unit (20) outputs an error signal.

2. The method according to claim 1, characterized in that, If the first and / or second locking criteria are not met, the control unit (20) outputs an error signal.

3. The method according to claim 1 or 2, characterized in that, The first signal source is the locking mechanism sensor (12) of the vehicle lock (11), which identifies the locking position in which the locking claw locks the rotating locking fork of the vehicle lock (11).

4. The method according to claim 1 or 2, characterized in that, The second signal source is the contact switch (50) of the movable part (110).

5. The method according to claim 1 or 2, characterized in that, The first or second signal source is a tightening auxiliary device (30) for the lock (11) and / or a drive device (40) for the movable part (110).

6. The method according to claim 1 or 2, characterized in that, The second signal source is the lock retainer sensor (60).

7. The method according to claim 1 or 2, characterized in that, The second signal source is a force sensor (70) used to identify the sealing pressure of the movable part (110).

8. The method according to claim 1 or 2, characterized in that, The second signal source is the image acquisition unit (80) of the vehicle (100), wherein the image acquisition unit (80) acquires the position of the movable part (110).

9. The method according to claim 1 or 2, characterized in that, The first signal source and / or the second signal source is a displacement sensor (90) of the movable part (110), wherein the displacement sensor (90) measures the distance of the movable part (110) relative to the vehicle (100).

10. The method according to claim 1 or 2, characterized in that, At least one protected transmission channel with end-to-end encryption is constructed between the control unit (20) and the first signal source or the second signal source.

11. The method according to claim 1 or 2, characterized in that, The vehicle (100) is an automatically operating vehicle, and the first signal source is the locking claw sensor of the vehicle lock (11).

12. A computer program product comprising executable program code, wherein, When executed by a data processing device, the program code executes the method according to any one of claims 1 to 10 via a control unit (20).

13. A vehicle locking system (10) for identifying the locked position of a movable part (110) of a vehicle (100), the vehicle locking system (10) comprising: A vehicle lock (11) for locking a movable part (110) to a vehicle (100), wherein the vehicle lock (11) can be fitted at the movable part (110) or the vehicle (100), and the vehicle lock (11) has at least one locking mechanism sensor (12) as a first signal source for acquiring at least one first position signal; A second signal source, which is different from the first signal source, acquires a second position signal that can be associated with the movable part (110); The vehicle locking system further includes a data processing device having a permanent computer-readable storage medium on which the computer program product of claim 12 is stored, wherein the data processing device is at least designed to execute the program code of the computer program product.

14. The vehicle locking system (10) according to claim 13, characterized in that, The locking mechanism sensor (12) is designed as a locking claw sensor.

15. The vehicle locking system (10) according to claim 13 or 14, characterized in that, The second signal source is located in or on the vehicle lock (11).

16. The vehicle locking system (10) according to claim 13 or 14, characterized in that, The second signal source is designed as a tensioning auxiliary device (30) for the vehicle lock (11) and / or a drive device (40) for the movable part (110).

17. The vehicle locking system (10) according to claim 13 or 14, characterized in that, The second signal source is designed as a contact switch (50) of the movable part.

18. The vehicle locking system (10) according to claim 13 or 14, characterized in that, The second signal source is designed as a lock retainer sensor (60).

19. The vehicle locking system according to claim 13 or 14, characterized in that, The second signal source is designed as a force sensor (70) for identifying the sealing pressure of the movable part (110).

20. The vehicle locking system (10) according to claim 13 or 14, characterized in that, The second signal source is designed as an image acquisition unit (80) of the vehicle (100), wherein at least one position of the movable part (110) can be acquired by means of the image acquisition unit (80).

21. The vehicle locking system (10) according to claim 13 or 14, characterized in that, The second signal source is designed as a displacement sensor (90) of the movable part (110), wherein the distance of the movable part (110) relative to the vehicle (100) can be measured by means of the displacement sensor (90).

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