EP4139548B1 - Verfahren zur sicheren erkennung einer schliessposition eines beweglichen teils von einem fahrzeug - Google Patents

Verfahren zur sicheren erkennung einer schliessposition eines beweglichen teils von einem fahrzeug Download PDF

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Publication number
EP4139548B1
EP4139548B1 EP21725015.8A EP21725015A EP4139548B1 EP 4139548 B1 EP4139548 B1 EP 4139548B1 EP 21725015 A EP21725015 A EP 21725015A EP 4139548 B1 EP4139548 B1 EP 4139548B1
Authority
EP
European Patent Office
Prior art keywords
vehicle
movable part
signal source
signal
control unit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP21725015.8A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP4139548A1 (de
Inventor
Holger Schiffer
Andreas Ziganki
Thorsten Bendel
Ömer INAN
Manuel REUSCH
Stefan Ebersohn
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kiekert AG
Original Assignee
Kiekert AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kiekert AG filed Critical Kiekert AG
Publication of EP4139548A1 publication Critical patent/EP4139548A1/de
Application granted granted Critical
Publication of EP4139548B1 publication Critical patent/EP4139548B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B81/00—Power-actuated vehicle locks
    • E05B81/54—Electrical circuits
    • E05B81/64—Monitoring or sensing, e.g. by using switches or sensors
    • E05B81/72—Monitoring or sensing, e.g. by using switches or sensors the lock status, i.e. locked or unlocked condition
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B81/00—Power-actuated vehicle locks
    • E05B81/54—Electrical circuits
    • E05B81/64—Monitoring or sensing, e.g. by using switches or sensors
    • E05B81/66—Monitoring or sensing, e.g. by using switches or sensors the bolt position, i.e. the latching status
    • E05B81/68—Monitoring or sensing, e.g. by using switches or sensors the bolt position, i.e. the latching status by sensing the position of the detent
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B81/00—Power-actuated vehicle locks
    • E05B81/54—Electrical circuits
    • E05B81/64—Monitoring or sensing, e.g. by using switches or sensors
    • E05B81/66—Monitoring or sensing, e.g. by using switches or sensors the bolt position, i.e. the latching status
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B81/00—Power-actuated vehicle locks
    • E05B81/54—Electrical circuits
    • E05B81/56—Control of actuators
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B81/00—Power-actuated vehicle locks
    • E05B81/54—Electrical circuits
    • E05B81/64—Monitoring or sensing, e.g. by using switches or sensors
    • E05B81/70—Monitoring or sensing, e.g. by using switches or sensors the wing position

Definitions

  • the present invention relates to the field of vehicle locking systems and relates to a method for detecting a closed position of a movable part of a vehicle according to the independent method claim, a computer program product according to the further independent claim and a vehicle locking system according to the independent system claim.
  • Vehicle locking systems are generally used to securely lock and unlock a moving part of a vehicle. These are safety systems of a vehicle that must function reliably to protect the vehicle's occupants. According to the prior art, whether a moving part of the vehicle is properly locked and/or closed is usually queried via door contact switches.
  • the signals from the door contact switches are z. B. converted into visual and/or acoustic cues so that an open and/or unlocked door can be identified.
  • switches can be integrated into corresponding vehicle locks of the moving parts. These query the position of the lock and then deliver a signal analogous to a door contact switch.
  • a method for detecting a closed state that issues a visual warning message when the door of a vehicle is not locked, with a door contact switch on the B-pillar or on the door hinge providing a corresponding signal.
  • the disadvantage of the prior art is that the known systems can be manipulated using the simplest means. For example, it is possible to intentionally or unintentionally operate door contact switches from the outside even though the door is not locked. Furthermore, the locking mechanism of a vehicle lock can be transferred to the locked state from the outside, even though the door has not fallen into the lock holder. This would simulate a locked door in the vehicle, which in reality is not locked at all.
  • the problem is particularly important in vehicles that can be operated automatically, especially in driverless vehicles.
  • the object of the invention is to at least partially eliminate the disadvantages known from the prior art.
  • it is the object of the present invention to enable reliable detection of a closed door, which offers improved protection against manipulation.
  • the above task is solved by a method with the features of the independent method claim, a computer program product according to the corresponding independent claim and a system with the features of the independent system claim.
  • the invention therefore essentially makes use of a multi-factor, in particular two-factor, query that differs from one another Position signals, whereby the signals come from signal sources that differ from one another.
  • a first position signal from a first signal source is received by a control unit as a first closing criterion, which includes at least a locking position of a vehicle lock for the movable part.
  • the locking position of the vehicle lock of or for the movable part is detected by a first signal source in the form of a position signal and interpreted as a first closing criterion for the movable part.
  • the control unit can be a (superordinate) 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 (wireless and/or wired).
  • the control unit adds a conditional test instruction to the received first position signal, the conditional test instruction comprising, after detecting the first position signal, checking for at least a second position signal as a second closing criterion, the first closing criterion still being fulfilled.
  • the conditional test instruction therefore serves to require at least one further closing criterion only when the first closing criterion is fulfilled, i.e. the locking position of the vehicle lock has been recognized, whereby the first closing criterion must still be fulfilled. It is therefore not an OR connection between two signals but rather an AND connection. However, the first closing criterion must still be met when the second closing criterion is queried/checked.
  • a second position signal from a second signal source is received by the control unit as a second closing criterion, wherein the second signal source differs from the first signal source and the second position signal can be assigned to the position, in particular closing position, of the movable part.
  • the second signal source is therefore a source that differs from the first signal source. This at least makes it more difficult to manipulate the signals. Even if the first signal source supplies a position signal that confirms the locking position of the lock, the first closing criterion is verified by means of the second signal source, in which a further signal from another signal source is necessary. For example, the second position signal could be independent of the locking position of the vehicle lock.
  • the second position signal can also be assigned to the movable part, in particular to the closed position of the movable part. It must therefore be possible to bring it into relation to a position, in particular a closing position, of the movable part, so that a closing position of the movable part can be concluded.
  • This can be, for example, the position of the moving part in relation to the body of the vehicle.
  • the confirmation signal signals that the movable part of the vehicle is in the closed position.
  • the confirmation signal can be an output signal, in particular an acoustic, optical and/or haptic signal (vibration).
  • the output signal can be used to prevent or restrict further vehicle functions. For example, starting the engine, driving off or accelerating can be influenced or trigger further restrictions that prevent or slow down the vehicle from driving.
  • the invention therefore has the advantage that a closed state of a movable part of the vehicle can be reliably detected. In addition, a failure or disruption of at least one of the signal sources can be detected.
  • a movable part can be a side door, sliding door, wing door, flap, fuel tank flap, charging plug flap, tailgate and/or a hood/front flap.
  • the control unit can 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 an output unit for reading in position signals from the signal source or for outputting data or control signals have the output unit and/or at least one communication interface for reading in or outputting data that is embedded in a communication protocol.
  • the computing unit can be, for example, a signal processor, a microcontroller or the like, whereby the storage unit can be a flash memory, an EEPROM or a magnetic storage unit.
  • the communication interface can be designed to read or output data wirelessly and/or by wire, wherein a communication interface that can read or output wired data can, for example, read this data electrically or optically from a corresponding data transmission line or output it into a corresponding data transmission line.
  • the control unit and/or computing unit is arranged outside the vehicle. It is advisable to use an IT infrastructure in the form of cloud computing or a similar network-based computer system. Such a solution can be particularly advantageous for automated vehicles, as remote maintenance or remote control and monitoring is possible. The risk of manipulation on/in the vehicle can be reduced.
  • the control unit can be designed to carry out a diagnostic routine. This makes it possible to check whether the signal source(s) is in an operational state or whether there are malfunctions. Depending on a diagnostic routine, it is possible to recalibrate the system if necessary, reset system parameters or display possible errors so that maintenance is possible. It is therefore conceivable that the associated measured values of a given position, preferably the main rest, are stored and compared with one another, so that Deviations can be detected and conclusions can be drawn about possible malfunctions. During the product life cycle, changes, particularly caused by wear or external environmental influences, can be detected and included in the position determination. This increases the reliability of position detection.
  • the control unit can output an error signal if the first and/or second closing criteria are violated. If the first and/or second signal source does not send a position signal or if the control unit does not receive such a signal, the error signal indicates that the closed position of the movable part is not present, i.e. H. could be verified/ensured. Accordingly, not only can it be reliably determined that the movable part is in the closed position, but also it can be reliably determined that the movable part is not in the closed position. Furthermore, it is conceivable that the error signal makes it possible to determine the existing error source, i.e. which signal source does not deliver a position signal. Possible manipulations can therefore be detected, for example, or unintentional disruptive influences can be recognized, which further increases reliability.
  • the control unit is intended to determine a time interval between the first position signal and the second position signal as a first time criterion and compare it with a specified second time criterion, preferably stored in the control unit, and if the second time criterion is violated (deviates from) the first time criterion, the control unit switches on output the corresponding error signal. Consequently, the reliability can also be further increased.
  • the time check can be part of the conditional test instructions. This means that the time criteria are checked for fulfillment within the conditional test instruction. A different, especially too long, time interval between the two position signals can indicate manipulation or an error.
  • the first signal source is a locking sensor, in particular a pawl sensor, of the vehicle lock, which is preferred a locking position is detected and in the locking position the pawl locks a rotary latch of the vehicle lock.
  • a locking sensor according to the invention can, for example, be inductive, capacitive, magnetic or optical sensors.
  • microswitches or Hall sensors in particular can be used to detect the position of the locking mechanism, in particular a locking position.
  • the locking position can preferably be a pre-locking and/or main locking position of the locking mechanism.
  • Taking a locking position in particular the pre-locking and/or main locking position, makes it possible to determine whether a lock holder of the movable part has come into engagement with the locking mechanism of the vehicle lock, so that a first closing criterion is represented by the pre-locking or main locking position.
  • the second signal source is a contact switch, in particular a contact switch that is not accessible from the outside, of the movable part.
  • the contact switch is preferably a door contact switch, wherein the door contact switch detects a closed position of the door.
  • Such contact switches are regularly arranged in the area of storage or suspension of the movable part or on the side opposite the storage, on which the vehicle lock is regularly located.
  • a contact switch according to the invention can be arranged, for example, in the area of the door bearing/door suspension and at least partially covered by parts of the body.
  • several contact switches can be arranged at different locations on the movable part, so that incorrect operation or intentional manipulative operation is at least made more difficult.
  • the first or second signal source is a closing aid for the vehicle lock and/or a drive for the movable part.
  • a closing aid according to the invention serves to ensure that the locking mechanism of the vehicle lock can be transferred from the pre-locking position to the main locking position.
  • the closing aid can in particular be in operative connection with a rotary latch or cooperate with it so that it is rotated about its axis of rotation in the direction of the main catch can be.
  • a drive according to the invention for the movable part can, for example, but not exclusively, be designed as a door and/or tailgate drive and can transfer the movable part, preferably a door, from an open position to a closed position or vice versa.
  • a drive for the movable part can also be understood as a stand for the movable part, wherein the stand can move the movable part at least from a closed position to a partially open position and/or vice versa.
  • a drive according to the invention and/or a stand according to the invention regularly have a position sensor system which makes it possible to draw conclusions about the position of the movable part.
  • the second signal source can be a lock holder sensor.
  • a lock holder sensor according to the invention detects whether the movable part is in the closed position, in particular in the locked position, and thus forms a reliable second position signal. It is particularly preferred if the lock holder sensor is arranged on the movable part or the vehicle so that it is inaccessible from the outside to people or disruptive environmental influences. In this way, intentional or unintentional manipulation can be further reduced, which can further increase reliability and thus security.
  • the second signal source is a force sensor for detecting a sealing pressure of the movable part.
  • the force sensor detects the pressure on the seal, in particular in the form of a door seal pressure, the pressure being generated by a closed state of the movable part.
  • the seal can be arranged on the movable part or the vehicle.
  • the force sensor is arranged on and/or at least partially in the seal.
  • the force sensor can only be arranged at certain points or over its entire circumference on/in the seal.
  • the force sensor can thus detect the closed position of the movable part and thus deliver a second position signal that can be reliably used as a second closing criterion.
  • the force sensor is essentially protected from disruptive environmental influences, which can increase reliability and reduce the probability of failure.
  • the second signal source is an image capture unit of the vehicle, with the image capture unit detecting a position of the movable part.
  • the image capture unit can be arranged on and/or in the vehicle, for example on a tailgate or a rear-view mirror. In particular, the image capture unit can form part of the rearview mirror.
  • the image capture unit can, for example, be designed as a camera and capture the movable part at least in sections, so that at least one closed position of the movable part can be recognized. It is particularly advantageous that a closed position is not possible by manipulating the image capture unit from the outside.
  • a correspondingly reliable second signal source is provided, by means of which the closed position of the movable part can be detected.
  • the second signal source is a displacement sensor of the movable part, the displacement sensor measuring a distance of the movable part to the vehicle.
  • the displacement sensor can z. B. be arranged in a hinge of the movable part or in the movable part itself.
  • the sensor measures a distance between the movable part and the vehicle, in particular a position or a distance traveled after a movement of the movable part.
  • the position, in particular the closing position, of the movable part can thus be inferred, so that a reliable second closing criterion is provided.
  • a secure transmission channel with end-to-end encryption can be set up/exist between the control unit and at least the first signal source and/or the second signal source.
  • a secured transmission channel with end-to-end encryption reduces tampering and increases reliability.
  • a computer program product comprises executable program code, the program code being executed by a Data processing device carries out the method according to the invention.
  • the program code is preferably stored on a machine-readable medium or storage medium such as a semiconductor memory, a hard drive memory or on the optical memory and is used to carry out, implement and / or control the steps of the method according to the invention, the program product or computer program being executed on a control unit .
  • a machine-readable medium is claimed on which the computer program product is stored in the claimed form.
  • a further aspect of the invention claims a vehicle locking system for detecting a closed position of a movable part of a vehicle, comprising a vehicle lock for locking the movable part to the vehicle, the vehicle lock being mountable on the movable part or on the vehicle, and the vehicle lock having at least one Has a locking sensor as a first signal source for detecting at least a first position signal, in particular in the form of a locking position of the locking mechanism; a second signal source, which is different from the first signal source and detects a second position signal assignable to the movable part; further comprising a control unit, with a non-volatile computer-readable storage medium on which the computer program product according to the invention is stored, the data processing device being at least designed to execute the program code of the computer program product.
  • the second signal source is preferably designed in such a way as is claimed and/or described in at least one of the dependent claims of the method according to the invention.
  • the Figure 1 shows a vehicle with a vehicle locking system according to the invention for moving parts 110 of the vehicle. 100.
  • the moving parts 110 of the vehicle. 100 are in Figure 1 shown schematically as a tailgate, 110, a hood 110 and side doors 110.
  • Each of these moving parts 110 can be assigned a vehicle locking system 10 according to the invention.
  • the movable part 110 can have a vehicle lock 11, which serves to lock the movable part 110 on the vehicle 100.
  • a vehicle lock 11 within the scope of the invention can be designed as a side door lock, a tailgate lock and/or as a hood lock.
  • the side door therefore points to the Figure 1 a vehicle lock 11, the vehicle lock 11 being in signal connection with a control unit 20 and a closing aid 30.
  • the closing aid 30 serves in particular to transfer the locking mechanism of the vehicle lock 11 from a pre-locking position to a main locking position.
  • the closing aid 30 can be provided according to the invention as a second signal source.
  • a second position signal can be detected via the closing aid 30, with a second position signal being generated when the main locking position is reached by the closing aid 30, which indicates the locked and thus represents the closed position of the movable part 110, here the side door.
  • the second position signal supplied by the closing aid 30 can be closed with the first position signal of the locking sensor of the vehicle lock 11 to a closed position of the movable part, here the side door 110.
  • the control unit 20 is arranged here, for example, in the side door 110. According to the invention, however, the control unit 20 can be arranged at any location in the vehicle. This can be a control unit of the motor vehicle lock 11 or a control unit superordinate to the vehicle.
  • a drive 40 for opening and/or closing the movable part 110 Such a door drive 40 is already well known from the prior art.
  • the drive 40 can move the movable part at least into an opening or closing position.
  • a position of the movable part can be determined via the drive 40.
  • a position sensor can be provided within the drive 40.
  • the drive 40 for opening and/or closing the movable part 110 is also in signal connection with the control unit 20.
  • a contact switch 50 is also shown on the two side doors 110 of the vehicle 100.
  • Contact switches 50 according to the invention can be used as a second position signal source, with a contact switch 50 being contacted in its closed position by the movable part 110, so that a closed position of the movable part 110, in this case the side door, can be ensured.
  • the contact switch 50 is advantageously located on the movable part 110 or the vehicle body of the vehicle. 100 arranged that manipulation from the outside is at least more difficult.
  • the contact switch 50 is preferably arranged outside of a user's area of intervention.
  • the contact switch 50 is designed such that an actuation is preferably only triggered in a closed position of the movable part. This ensures that the second position signal is only generated by the contact switch 50 when the vehicle door 110 is closed.
  • the contact switch 50 is also in signal connection with the control unit 20, which is indicated here by the dashed line.
  • an image capture unit 80 is shown, through which a second position signal can be detected, wherein the image capture unit 80 can detect a position of the movable part 110.
  • the image capture unit 80 is designed such that at least one closed position of the movable part 110 can be determined by the image capture unit 80. A closed position of the movable part 110 can thus be generated as a second position signal for verifying the closed position of the movable part 110 by means of the image capture unit 80.
  • the image capture unit 80 is also in signal connection with the control unit 20, so that a second position signal can be transmitted from the image capture unit 80 to the control unit 20.
  • FIG. 2 shows an embodiment of a vehicle locking system 10 according to the invention.
  • the vehicle locking system consists of a vehicle lock 11, the vehicle lock 11 having a locking mechanism 13 and the locking mechanism 13 consisting of at least one rotary latch and at least one pawl.
  • a locking sensor 12 is assigned to the locking mechanism 13, and in particular a locking position of the locking mechanism 13 can be detected by means of the locking sensor 12.
  • the locking mechanism 13 serves to lock a movable part of the vehicle, in particular a side door, a rear door or a hood or sliding door, to the vehicle/vehicle body.
  • a locking state therefore corresponds to a closed position of the movable part, with the locking mechanism additionally securing the closed position of the movable part.
  • the locking mechanism in particular the rotary latch of the locking mechanism, is in holding engagement with a lock holder, the lock holder preferably being arranged on the body of the vehicle.
  • a vehicle lock 11 is arranged in the vehicle or the vehicle body and the lock holder is located on the movable part. This is implemented, for example, in a hood lock.
  • the vehicle lock 11 is in signal connection with the control unit 20, the data connections being shown with dashed lines. Furthermore, the vehicle lock is 11 in Figure 2 a lock holder sensor is assigned, wherein a lock holder sensor according to the invention is arranged on the vehicle lock eleven in such a way that a position of the lock holder in the vehicle lock eleven can be detected. In particular, a position of the lock holder can be detected by the lock holder sensor 60, which corresponds to a locking position of the lock holder with the locking mechanism 13. Accordingly, the lock holder sensor 60 and the locking sensor 12 provide the two position signals, which are sent to the data processing device.
  • FIG. 2 shows Figure 2 a closing aid 30, which is in operative connection with the vehicle lock 11, in particular the locking mechanism 13.
  • the closing aid 30 can thus be used to transfer the locking mechanism from a pre-locking position to a main locking position. It is also conceivable that the closing aid 30 uses a third position signal to verify the closed position of the movable part. Accordingly, at least three position signals can be used by the control unit 20 to verify a closed position of a movable part.

Landscapes

  • Lock And Its Accessories (AREA)
  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
EP21725015.8A 2020-04-21 2021-04-01 Verfahren zur sicheren erkennung einer schliessposition eines beweglichen teils von einem fahrzeug Active EP4139548B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102020110769.2A DE102020110769A1 (de) 2020-04-21 2020-04-21 Verfahren zur sicheren Erkennung einer Schließposition eines beweglichen Teils von einem Fahrzeug
PCT/DE2021/100319 WO2021213584A1 (de) 2020-04-21 2021-04-01 VERFAHREN ZUR SICHEREN ERKENNUNG EINER SCHLIEßPOSITION EINES BEWEGLICHEN TEILS VON EINEM FAHRZEUG

Publications (2)

Publication Number Publication Date
EP4139548A1 EP4139548A1 (de) 2023-03-01
EP4139548B1 true EP4139548B1 (de) 2024-03-20

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP21725015.8A Active EP4139548B1 (de) 2020-04-21 2021-04-01 Verfahren zur sicheren erkennung einer schliessposition eines beweglichen teils von einem fahrzeug

Country Status (7)

Country Link
US (1) US20230228131A1 (zh)
EP (1) EP4139548B1 (zh)
JP (1) JP2023522239A (zh)
KR (1) KR20230002882A (zh)
CN (1) CN115427651A (zh)
DE (1) DE102020110769A1 (zh)
WO (1) WO2021213584A1 (zh)

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Publication number Priority date Publication date Assignee Title
DE102021127552A1 (de) 2021-10-22 2023-04-27 Bayerische Motoren Werke Aktiengesellschaft Fortbewegungsmittel, Vorrichtung und Verfahren zum Erkennen einer Fehlfunktion eines Türsensors eines Fortbewegungsmittels

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Publication number Publication date
KR20230002882A (ko) 2023-01-05
CN115427651A (zh) 2022-12-02
WO2021213584A1 (de) 2021-10-28
DE102020110769A1 (de) 2021-10-21
EP4139548A1 (de) 2023-03-01
US20230228131A1 (en) 2023-07-20
JP2023522239A (ja) 2023-05-29

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