EP1467322A2 - Kraftfahrzeug-Türschliesssystem - Google Patents

Kraftfahrzeug-Türschliesssystem Download PDF

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Publication number
EP1467322A2
EP1467322A2 EP04005393A EP04005393A EP1467322A2 EP 1467322 A2 EP1467322 A2 EP 1467322A2 EP 04005393 A EP04005393 A EP 04005393A EP 04005393 A EP04005393 A EP 04005393A EP 1467322 A2 EP1467322 A2 EP 1467322A2
Authority
EP
European Patent Office
Prior art keywords
motor vehicle
bluetooth
handset
controller
door locking
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.)
Withdrawn
Application number
EP04005393A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1467322A3 (de
Inventor
Ingmar Hentsch
Frank Jarzyk
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.)
Brose Schliesssysteme GmbH and Co KG
Original Assignee
Brose Schliesssysteme GmbH and Co KG
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
Priority claimed from DE2003116306 external-priority patent/DE10316306A1/de
Priority claimed from DE2003116307 external-priority patent/DE10316307A1/de
Application filed by Brose Schliesssysteme GmbH and Co KG filed Critical Brose Schliesssysteme GmbH and Co KG
Publication of EP1467322A2 publication Critical patent/EP1467322A2/de
Publication of EP1467322A3 publication Critical patent/EP1467322A3/de
Withdrawn legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C9/00—Individual registration on entry or exit
    • G07C9/00174—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
    • G07C9/00309—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated with bidirectional data transmission between data carrier and locks
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C9/00—Individual registration on entry or exit
    • G07C9/00174—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
    • G07C2009/00753—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated by active electrical keys
    • G07C2009/00769—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated by active electrical keys with data transmission performed by wireless means
    • G07C2009/00793—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated by active electrical keys with data transmission performed by wireless means by Hertzian waves

Definitions

  • the present invention relates to a motor vehicle door locking system with the Features of the preamble of claim 1.
  • Modern motor vehicle door locking systems increasingly offer the possibility of system functions trigger from a distance.
  • Typical system functions are in this context for example the actuation of a central locking device or the motorized opening of a tailgate.
  • To trigger these system functions the operator carries a handset with him.
  • Electromechanical motor vehicle door locking systems with a are known Handset designed for radio remote control. By pressing a push button on the radio remote control, a motor vehicle control can be activated implements the desired system function after an authorization check interval.
  • the motor vehicle door locking system (DE 100 07 500 A1), from which the present invention is based, is a bidirectional radio link between the vehicle control system and the handset, which is designed as a data carrier, is provided.
  • the startup interval is started when the operator's hand approaches the outside door handle of the motor vehicle.
  • a proximity sensor is provided, which in one embodiment is based on the radar principle rests, d. H. it can reflect waves by means of an antenna and a corresponding evaluation electronics can be detected.
  • the motor vehicle door locking system is, so to speak, a signal from the proximity sensor - trigger signal - woken up.
  • both the motor vehicle control and the operator side Data carriers each have a UHF transmitter and a UHF receiver.
  • the radio link from the motor vehicle control to Operator-side data carrier is designed as an LF radio link, which is then for a Transmission length of less than 2 m is designed. The reason for this short Transmission length is that this gives unauthorized access to the motor vehicle from a large - and therefore safe for the unauthorized - distance should be avoided.
  • a handset which has special communication electronics for the Communication between the handset and the vehicle control system having.
  • the handset In order to be able to transmit the respective access data to the control, points the handset has its own power supply.
  • the handset integrated into a key fob, a motor vehicle key or into a card due to the limited space, this leads to special problems in development.
  • the invention is based on the problem, the known motor vehicle door locking system to design and develop such that the realization of the Radio link is better matched to the given conditions.
  • the Bluetooth industry standard provides a specification for that Communication between Bluetooth enabled devices that are spaced from each other of maximum 10 m.
  • the original goal of this industry standard was therein, cable connections for data transmission between individual devices to be replaced by Bluetooth radio links (see website www.bluetooth.com).
  • the achievable data transfer rate for a Bluetooth radio link is 1 Mbit / S a transmission power of 1 mW in the license-free 2.4 GHz band (ISM band).
  • An essential one The advantage of the low transmission power is the resulting low one Power consumption from Bluetooth devices.
  • the Bluetooth industry standard offers a high level of protection against the unauthorized Access to a Bluetooth device. This is ensured by the complex communication protocol when establishing a connection, the encryption of data during transmission as well as the transmission in a special frequency hopping procedure. Furthermore, it is basically possible that Bluetooth devices “negotiate” the transmission power with each other, so that communication in "whisper mode” is possible and thereby Eavesdropping from a distance is difficult.
  • Bluetooth industry standard is increasing portable electronic devices such as cell phones or PDAs interspersed so that you can here with regard to both the hardware and the software a mass article with the corresponding advantages in terms of price and availability has to do.
  • Bluetooth devices can connect to each other be able to record.
  • a Bluetooth device in the so-called “Sniff mode” works. In this mode, the Bluetooth device hears periodically Intervals the Bluetooth transmission frequencies and answers another Device, if this is a so-called “Inquiry Message” on one of the Bluetooth transmission frequencies sends. It is possible for two Bluetooth devices automatically “discover” each other as soon as the two Bluetooth devices face each other Have approached 10 m.
  • the Bluetooth radio link is limited to 10 m, which represents the usual radius within which a triggering of system functions a motor vehicle door locking system should be possible in any case.
  • the low power consumption is particularly advantageous when it is designed of the handset depends on the smallest possible size and thus the use of batteries or accumulator systems leads to problems, for example with the Integration of the handset in a motor vehicle key.
  • Bluetooth industry standard already described Provides security mechanisms for access to a motor vehicle by are of particular importance.
  • a special simplification for the implementation of the motor vehicle door locking system brings the application of the Bluetooth industry standard for a motor vehicle door locking system with passive entry function.
  • Bluetooth mode or a similar service of the Bluetooth industry standard be used to recognize the approach of the operator to the motor vehicle and establish the Bluetooth connection (start-up interval).
  • the transmission power is straight sufficient to cover the radio link between the handset and the motor vehicle side To maintain control. This makes the transmission more relevant to security Data is limited to the minimum necessary distance, so that the risk of eavesdropping is reduced (Whisper mode).
  • Fig. 1 shows a motor vehicle 1 with a proposed Motor vehicle door locking system.
  • the motor vehicle door locking system has in particular several motor vehicle locks 2, 3, in particular for motor vehicle doors, one Motor vehicle tailgate o. The like., And a hood lock 4, the installation positions are indicated schematically in Fig. 1.
  • the motor vehicle locks 2, 3 are in the Can be unlocked or locked by means of a central locking system.
  • each motor vehicle lock 2, 3 additionally has the Possibility of a motorized opening, i.e. the lifting of a not shown Pawl on an opening drive, not shown.
  • an operator-side handset 6 is provided.
  • the handset 6 as a radio remote control is designed.
  • the handset 6 can also be designed as a data carrier be that does not provide an operating option for the operator. This is common in motor vehicle door locking systems with a passive entry function, as already was shown.
  • the triggerability of system functions by the handset 6 means that in the case of the design of the handset 6 as a radio remote control a system function by manually operating the radio remote control can be triggered and that in the case of the design of the handset 6 as a data carrier a system function by the approach of the operator - and thus the Data carrier - can be triggered on the motor vehicle 1.
  • the controller 5 and the handset 6 each have communication electronics 5 ', 6', via which a bidirectional Radio link between the controller 5 on the one hand and the handset 6 on the other is buildable (Fig. 2). It may be that communication electronics 5 ', 6' is coupled to a further component 7 in order to be able to set up the radio link. This is explained in more detail below. At least over the radio link a system function of the motor vehicle door locking system can be triggered by the mobile part 6.
  • the radio link between the controller 5 and the handset 6 is a radio link according to the Bluetooth industry standard.
  • This radio link will hereinafter referred to as the Bluetooth radio link.
  • Those connected to the Bluetooth radio link Advantages have already been explained in the general part of the description. This may be referred to.
  • the communication electronics 5 ′ have the controller 5 and the communication electronics 6 'of the handset 6 each have a Bluetooth interface 7, 8 on.
  • a Bluetooth interface on the motor vehicle side 7 already available, for example to control a headset or to Sensor signals from a parking guidance system or a system for tire pressure measurement receive.
  • the communication electronics the controller 5 with the one already present in the motor vehicle 1 Bluetooth interface 7 is coupled.
  • Fig. 2 shows such a structure, the Bluetooth interface 7 with further control components of the Motor vehicle 1 is coupled.
  • the hardware of a Bluetooth interface 7, 8 is now a mass article available.
  • the dimensions of the hardware of a Bluetooth interface 7, 8 are comparatively are small.
  • the small dimensions of the hardware of the Bluetooth interface enables this hardware to be integrated into small objects.
  • the handset 6 can be used here as a card, as a key fob or as a component a key. There are numerous other options here to which reference may be made.
  • the mobile part 6 is a mobile electronic device, preferably a mobile phone or a PDA with an integrated Bluetooth interface.
  • a mobile electronic device preferably a mobile phone or a PDA with an integrated Bluetooth interface.
  • certain system functions of the motor vehicle door locking system trigger as will be explained below.
  • the motor vehicle-side Bluetooth interface 7 it is only necessary to use the motor vehicle-side Bluetooth interface 7 once the Bluetooth device address of the electronic organizer and in both devices enter a secret code word or save it there. Everything else takes over the Bluetooth communication control then automatically.
  • Fig. 2 shows that a number of handsets 6 are provided here all communicate with the controller 5 via the Bluetooth radio link.
  • Users on the motor vehicle 1 or on the handset 6 have a simple user interface to provide new Bluetooth devices (mobile phones, PDAs, etc.) as described above in the controller 5.
  • a major advantage when using an electronic device such as a cell phone or a PDA as a handset 6 is that these devices usually with a powerful Power supply are equipped. The problem of Equipping the handset 6 with a corresponding power supply is thus relativized.
  • Bluetooth interface 7, 8 in the so-called “sniff mode” or in a comparable mode can be brought and then cyclically to a so-called “Inquiry Message” each another Bluetooth interface 7, 8 is waiting.
  • the Bluetooth interface 7 of the controller 5 or with the communication electronics 5 'of the controller 5 coupled Bluetooth interface 7 in the "Sniff mode” is switched and on an "Inquiry message” of the Bluetooth interface 8 of the handset 6 waits.
  • the reverse can also be used Constellation make sense.
  • the handset 6 must be taken into account.
  • the Bluetooth interface 7 is the Controller 5 and the Bluetooth interface 8 of the handset 6 automatically "discover" and start a Bluetooth connection. This process corresponds to that previously explained startup interval, as provided for in the passive entry function is.
  • the automatic Bluetooth connection establishment is followed by the Bluetooth authorization query, the process of which is also defined in the Bluetooth industry standard. Especially In a preferred embodiment, this Bluetooth authorization query is called Authorization check interval used for the passive entry function.
  • Bluetooth service consists, for example, of the reception level at a Bluetooth interface measured using the RSSI value (Receiver Strength Signal Indicator).
  • the one described above can be used Use Bluetooth service measuring the respective reception level to trigger block certain system functions when the handset 6, that is Operator is too far from the motor vehicle 1.
  • the motor vehicle door locking systems with a passive entry function can do so be disadvantageous after use if the unlocking of the motor vehicle lock 2, 3 takes place immediately when the distance between the handset 6 and Motor vehicle 1 falls below the 10 m limit.
  • 3 takes place immediately when the distance between the handset 6 and Motor vehicle 1 falls below the 10 m limit.
  • an urban Unlocking from this comparatively large distance can be undesirable in the environment his.
  • the controller 5 from the measured Receiving level determines the distance of the handset 6 from the motor vehicle 1 and that the controller 5 then depending on the determined distance enables or blocks the triggering of a system function.
  • An example of this is the Release of the automatic unlocking of the motor vehicle lock 2, 3 only then, if the handset 6, i.e. the operator, is at a distance of less than 3 m from the motor vehicle.
  • the automatic Bluetooth connection is established as well as the Bluetooth authorization query already at The operator enters the 10 m limit. The interval of action in which the unlocking of the motor vehicle lock 2, 3 is carried out by the controller 5 blocked until the determined distance reaches the 3 m limit.
  • the described distance-dependent release can be used for all system functions of the Motor vehicle door locking system can be provided. It can even detect indoor areas be provided so that starting the engine at the push of a button is then possible if the operator is using the mobile part 6 in the motor vehicle (Passive-Go).
  • the system function of unlocking a motor vehicle lock 2, 3 or a plurality of motor vehicle locks 2, 3 is assigned a predetermined distance range around the motor vehicle 1. This distance range is defined in FIG. 3 by the dashed line 9 and is designated A 1 .
  • the controller 5 releases the release of the above-mentioned unlocking by the mobile part 6 when the mobile part 6 is within the distance range A 1 assigned to this system function.
  • the controller 5 specifies at least two distance ranges A 1 , A 2 , the system functions being assigned to the different distance ranges A 1 , A 2 .
  • the distance range A 2 shown in FIG. 3 is defined by the dashed line 9 '.
  • the different distance ranges are stored in the controller 5.
  • 5 logic links are stored in the controller, which represent the assignment of a system function to a distance area A 1 , A 2 or more distance areas A 1 , A 2 in terms of control technology.
  • a distance range A 1 , A 2 by parameters and storing the parameters in the controller 5 as described above.
  • a distance area A 1 , A 2 can be circular, so that the parameter to be stored is the radius of the circle.
  • a range A 1 , A 2 is elliptical, so that the parameters to be stored here are the two semiaxes of the ellipse. 3, the elliptical shape is particularly advantageous due to the generally elongated design of the motor vehicle 1. In principle, however, it can also be provided that only parts or angular areas of a circle or an ellipse are defined as the distance area.
  • the controller 5 Based on the above assignment of the system functions to the various distance areas A 1 , A 2 , the controller 5 only releases the triggering of a system function if the handset 6 is within the distance range A 1 , A 2 assigned to the system function concerned.
  • the handset 6 is designed as a radio remote control, this has the advantageous effect, as already explained, that the undesired triggering of certain system functions from a great distance is avoided.
  • the part of the controller 5 determines in which distance range A 1 , A 2 the handset 6 is located.
  • a preferred possibility is that the motor vehicle or operator-side reception level of the radio link can preferably be measured by the controller 5 and that the distance of the mobile part 6 from the motor vehicle 1 can be determined by the controller 5 from the measured reception level. The corresponding distance range A 1 , A 2 can then again be determined from the distance determined in this way.
  • the Bluetooth industry standard provides a Bluetooth service that the Receive level at a Bluetooth interface via the RSSI value (receiver Strength Signal Indicator) can be measured.
  • RSSI value Receiveiver Strength Signal Indicator
  • the respective transmission power kept at a certain value, which is the reference for the evaluation of the measured RSSI value.
  • the respective transmitting part the value of the current transmission power to the recipient, who then forms the above reference.
  • a system function which can be triggered by the mobile part 6 is preferably in addition to the one explained Unlocking a comfort function like activating the apron light, the turn signal or the interior lighting or as the operator-specific Adjustment of the vehicle seat or the vehicle mirror.
  • the motor vehicle 1 is a motor unlockable motor vehicle lock 2, 3 and that one of the by Handset 6 triggerable system functions the motorized unlocking of the motor vehicle lock 2, 3 is.
  • the Motor vehicle has a motor vehicle lock 3 and that a the system functions that can be triggered by the handset 6 are the motorized opening of the Motor vehicle lock 3 is.
  • Another system function that usually has a particularly large distance range Activation is associated with motor vehicle 1 an authorization check interval. Since such an authorization check interval can take a certain amount of time according to the configuration, it can be advantageous be when the handset is already out when the operator approaches farther away the authorization check interval is activated without necessarily some other function, such as a comfort function, is activated. This is then the possibly tedious one for the authorization check interval necessary communication already done when a system function such as unlocking a motor vehicle lock 2, 3 shall be.
  • the proposed solution is associated with special advantages if one of the control 5 released system function by a manual operation on Handset 6, ie when the handset 6 is designed as a radio remote control, can be triggered is. This has already been explained in the general part of the description.
  • the proposed solution for the configuration with a shows particular advantages Function in the manner of a passive entry system. Then it is the case that the movement of the handset 6 in a system function - preferably unlocking one Motor vehicle lock 2, 3 - assigned range automatically Triggers the affected system function. When the operator approaches with the handset 6 it is then, for example, in a preferred embodiment so that at a distance of about 20 m the turn signals and the Apron light activated that the interior lighting at a distance of about 10 m is activated and the operator-specific setting of the vehicle seat and the vehicle mirror is made and that at a distance from about 2 m the unlocking of the driver's motor vehicle lock 2 or all Motor vehicle locks 2, 3 is carried out. Of course, depending on Other distance ranges are also conceivable.
  • the handset 6 on the one hand as a data carrier in the sense a passive entry system and on the other hand is designed as a radio remote control. This leads to maximum comfort with maximum flexibility.
  • a further increase in user-friendliness can be achieved in that the motor of the motor vehicle 1 can be started via an actuation arrangement in the interior of the motor vehicle 1, preferably via a pushbutton or the like, and in that the controller 5 enables the motor to be started when that Handset 6 is located in the interior of motor vehicle 1.
  • An authorization check interval was then preferably carried out from a further distance, as explained above.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Lock And Its Accessories (AREA)
EP04005393A 2003-04-08 2004-03-06 Kraftfahrzeug-Türschliesssystem Withdrawn EP1467322A3 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE2003116306 DE10316306A1 (de) 2003-04-08 2003-04-08 Kraftfahrzeug-Steuersystem
DE2003116307 DE10316307A1 (de) 2003-04-08 2003-04-08 Kraftfahrzeug-Türschließsystem
DE10316307 2003-04-08
DE10316306 2003-04-08

Publications (2)

Publication Number Publication Date
EP1467322A2 true EP1467322A2 (de) 2004-10-13
EP1467322A3 EP1467322A3 (de) 2005-10-12

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP04005393A Withdrawn EP1467322A3 (de) 2003-04-08 2004-03-06 Kraftfahrzeug-Türschliesssystem

Country Status (2)

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US (1) US20040201277A1 (es)
EP (1) EP1467322A3 (es)

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US7518326B2 (en) 2006-01-20 2009-04-14 Albany International Corp. Wireless communication system for a roll-up door
DE102009038580A1 (de) 2009-08-22 2011-02-24 Volkswagen Ag Verfahren und Vorrichtung zur Erfassung eines im Fahrzeug zurückgelassenen Mobilgeräts
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DE102021002073A1 (de) 2021-04-20 2022-10-20 Mercedes-Benz Group AG Vorrichtung und Verfahren zur Authentifizierung einer Berechtigung einer Person zur Nutzung eines Fahrzeugs

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