WO1998013566A1 - Closure device - Google Patents

Closure device Download PDF

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Publication number
WO1998013566A1
WO1998013566A1 PCT/DE1997/001937 DE9701937W WO9813566A1 WO 1998013566 A1 WO1998013566 A1 WO 1998013566A1 DE 9701937 W DE9701937 W DE 9701937W WO 9813566 A1 WO9813566 A1 WO 9813566A1
Authority
WO
WIPO (PCT)
Prior art keywords
electronics
lock
antenna
transponder
locking device
Prior art date
Application number
PCT/DE1997/001937
Other languages
German (de)
French (fr)
Inventor
Peter Hauler
Dieter Schramm
Stephan Schmitz
Original Assignee
Robert Bosch Gmbh
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 Robert Bosch Gmbh filed Critical Robert Bosch Gmbh
Priority to EP97941864A priority Critical patent/EP0929727B1/en
Priority to DE59707742T priority patent/DE59707742D1/en
Priority to AU43760/97A priority patent/AU4376097A/en
Publication of WO1998013566A1 publication Critical patent/WO1998013566A1/en

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B77/00—Vehicle locks characterised by special functions or purposes
    • E05B77/46—Locking several wings simultaneously
    • E05B77/48—Locking several wings simultaneously by electrical means
    • 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
    • G07C9/00944—Details of construction or manufacture
    • 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
    • G07C2009/00507—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 keyless data carrier having more than one function
    • G07C2009/00523—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 keyless data carrier having more than one function opening of different locks separately
    • 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 invention relates to a locking device for a motor vehicle. From DE-OS 44 22 906 a method for operating a locking system for lockable objects is known which describes the data exchange between a key module and a lock module.
  • the lock module consists of a receiving unit that detects the signals of the key module, an evaluation unit and a control unit that performs the opening or closing process of the vehicle door.
  • the receiving unit and control unit are housed spatially separated from one another.
  • the invention has for its object to optimize a lock module for locking or unlocking a motor vehicle door in terms of safety and manufacturing technology.
  • the object is achieved by the features specified in the independent claims.
  • a control device communicates with a lock module via a bus system.
  • Broadcast and Receiver electronics of an antenna and a lock electronics access common bus electronics. These components are structurally integrated in a housing for the lock module. If the lock module is housed in a motor vehicle door, its components are extreme
  • the housing offers the sensitive electronic components adequate protection against adverse environmental influences as well as against hostile attacks. Since bus electronics are responsible for both the antenna electronics and the lock electronics, the wiring effort can be reduced. Thanks to the high level of integration of the components, connectors can also be saved. Corresponding signals of the bus system trigger a control of the lock mechanism for locking or unlocking, in particular a motor vehicle door, through the lock module. This makes targeted manipulation from the outside difficult, since an encrypted bus protocol has to be simulated and the application of the supply voltage alone is not sufficient to open or close the
  • the structural integration of the components in a lock module allows for quick assembly. Operating states of the individual electronic components can be recorded and evaluated with the help of the bus system without additional wiring.
  • the lock module can be designed for several vehicle types, which is why increasing numbers result in cost reductions.
  • the lock module is electrically connected to an antenna via an antenna connection.
  • the antenna can be individually adapted to the vehicle type.
  • a lock module is accommodated in each door of the motor vehicle, all lock modules being networked by the bus system.
  • An identical lock module for all doors of the motor vehicle reduces the number of parts.
  • this variant allows the receiving electronics to determine the relative position of the user to the respective door.
  • the networking of the lock modules through the bus system makes it possible to specifically unlock or lock several doors.
  • a signal state of a switch is supplied to the lock module.
  • this signal state can be passed on to the control device via the bus system, which initiates an opening or closing process, for example, depending on the signal state.
  • the adjustment drive is controlled in an encrypted manner.
  • Theft protection can be increased by this measure, since the application of the supply voltage to the adjustment drive alone does not lead to the locking mechanism being opened.
  • a method for opening a locking device provides that in a first step a signal to initiate an opening process is generated, that in a second step, depending on the signal, an antenna is driven which sends a command to a transponder, that in a third step the transponder generates a response and sends it to the antenna, and that in a fourth step, the lock mechanism is controlled depending on the answer.
  • An unlocking process is possible without using a key.
  • the data exchange between the transponder and antenna prevents unauthorized opening, since the lock mechanism is only activated if the response of the transponder matches the expected one.
  • the opening process is initiated mechanically.
  • Triggering the opening process when a door handle is actuated increases the ease of use, since the conventional unlocking of the lock can be omitted.
  • FIG. 1 shows a basic arrangement option in a motor vehicle
  • FIG. 2 shows a block diagram of an exemplary embodiment
  • FIG. 3 shows a flow chart as an exemplary embodiment of a method according to the invention.
  • Lock modules 19a to 19e are accommodated in a motor vehicle 10 and are connected to each other and to a control unit 11 by a bus system 12. Located outside of the motor vehicle 10 a transponder 13 that exchanges data with the lock module 19. The lock module 19 is through a bus connection
  • Signal state 33 of a switch 32 is the bus electronics
  • the lock electronics 26 emits a signal to an adjustment drive 30, which actuates a lock mechanism 31 for locking or unlocking a lock.
  • a CAN bus for example, is used in a motor vehicle as the lock modules 19a to 19e and the bus system 12 which networks the control device 11.
  • the lock modules 19a to 19e are used in a motor vehicle as the lock modules 19a to 19e and the bus system 12 which networks the control device 11.
  • the transponder 13 exchanges signals with the antenna 28. These can be electromagnetic waves in the high-frequency range or infrared signals. An example designed as a plug connection
  • Antenna connection 27 establishes an electrically conductive connection between antenna 28 and antenna electronics 23 through housing 20. If the bus system 12 transmits a transmission command to the transmission electronics 24 via the bus electronics 22, the transmission electronics 24 controls the antenna 28 accordingly. On the other hand, if the antenna 28 receives a signal, the receiving electronics 25 converts it into a data format which, for example, the control unit 11 can evaluate after the data transmission.
  • the adjustment mechanism 30, which actuates the lock mechanism 31 for the purpose of locking and unlocking, in particular a door, can be designed as an electric drive.
  • the lock electronics 26 supplies the adjustment drive 30 with the desired energy over a certain period of time. Encrypted control of the adjusting drive 30 is also possible.
  • the control unit 11 generates the encrypted adjustment command, which is decrypted by special electronics integrated in the adjustment drive 30.
  • the lock electronics 26 can be different
  • the exemplary embodiment is not limited to electrical adjusting drives 30, and a pneumatic influencing of the lock mechanism 31 is also possible.
  • the switch 32 can be operated, for example, via a door handle.
  • the bus electronics 22 detects the signal state 33 and communicates it to the control unit 11.
  • FIG. 3 describes a possible opening process.
  • a "initiate opening" signal is to be generated, step 101.
  • a driver who wants to open or unlock the motor vehicle 10 actuates the switch 32 via a door handle.
  • the bus electronics 22 detects the change in the signal state 33 and shares it it via the bus system 12 to the control unit 11.
  • the change in the signal state 33 triggers a command procedure in the control unit 11 to initiate the opening process described below.
  • a further possibility of generating a signal in accordance with step 101 is that the transponder 13 sends a signal to the antenna 28.
  • the receiving electronics 25 evaluates this and informs the control unit 11 that a signal of the transponder 13 has been received, if the transmitted transponder signal matches the signal expected by the control unit 11, starts the opening process.
  • a command is sent to the transponder 13.
  • Different strategies can be used as to which antenna 28 of the lock modules 19a to 19e should send the command to the transponder 13.
  • a first variant provides that the antenna 28 of the lock module 19 transmits to which the signal "initiate opening" is assigned.
  • the control unit 11 makes a decision based on an algorithm stored there, which lock module 19 with a send command
  • a further alternative is that all antennas 28 of the lock modules 19a to 19e send the command to the transponder 13.
  • the transponder 13 receives the command which triggers a procedure to send a response, step 103.
  • the transponder 13 provides the response depending on the command sent, on the response generation procedure stored in the transponder 13 and possibly on a vehicle-specific key word is ready and sent, the antenna 28 of the lock module 19 receives the response, which is evaluated by the receiving electronics 25 and sent to the bus system 12 is given.
  • the lock mechanism 31 is activated depending on the answer, step 104.
  • An additional security question checks the answer whether it matches the expected one. If this is not the case, the opening process is prevented. If the answer is admissible, the control unit 11 decides which lock modules 19 the opening command is transmitted to.
  • Several options are possible. In a first variant, only the lock module 19 of the driver's door receives the opening command, while in a second variant it is sent to all lock modules 19a to l9e.
  • the bus system 12 transmits the opening command from the control unit 11 to the bus electronics 22, which sends this to the lock electronics 26 passes on.
  • the lock electronics 26 converts the command into corresponding control signals for the adjustment drive 30, which then actuates the lock mechanism 31 in the sense of an opening process.
  • a third variant it is provided that only the lock module 19 in the sense of a
  • Opening is controlled, which has received the response of the transponder 13.
  • the method is particularly suitable for operating the locking device described at the beginning.

Abstract

The invention concerns a motor vehicle closure device (10), with a lock mechanism (31) which can be actuated by an actuating motor (30) with which lock electronics (26) are associated. The closure device further comprises an antenna (28) which can be controlled by transmission electronics (24) and/or reception electronics (25), a transponder (13) which exchanges data with the antenna (28), and a control device (11) which is connected by a bus system (12) via bus electronics (22) to the transmission electronics (24) and/or to the reception electronics (25) and/or to the lock electronics (26). The bus electronics (22), transmission electronics (24) and/or reception electronics (25) and/or lock electronics (26) are structurally incorporated in a housing (20) to form a lock module (19) which comprises a connection (21) for the bus system (12).

Description

schließvorricht nglocking device ng
Stand der TechnikState of the art
Die Erfindung geht aus von einer Schließvorrichtung für ein Kraftfahrzeug. Aus der DE-OS 44 22 906 ist ein Verfahren zum Betrieb eines Schließsystems für verschließbare Gegenstände bekannt, das den Datenaustausch zwischen einem Schlüsselmodul und einem Schloßmodul beschreibt. Das Schloßmodul besteht aus einer Empfangseinheit, die die Signale des Schlüsselmoduls detektiert, einer Auswerteeinheit sowie einer Steuereinheit, die den Öffnungs- bzw. Schließvorgang der Fahrzeugtür durchführt. Empfangseinheit und Steuereinheit sind hierbei räumlich getrennt voneinander untergebracht.The invention relates to a locking device for a motor vehicle. From DE-OS 44 22 906 a method for operating a locking system for lockable objects is known which describes the data exchange between a key module and a lock module. The lock module consists of a receiving unit that detects the signals of the key module, an evaluation unit and a control unit that performs the opening or closing process of the vehicle door. The receiving unit and control unit are housed spatially separated from one another.
Der Erfindung liegt die Aufgabe zugrunde, ein Schloßmodul zur Verriegelung oder Entriegelung einer Kraftfahrzeugtür in sicherheits- und fertigungstechnischer Hinsicht zu optimieren. Die Aufgabe wird durch die in den unabhängigen Ansprüchen angegebenen Merkmale gelöst .The invention has for its object to optimize a lock module for locking or unlocking a motor vehicle door in terms of safety and manufacturing technology. The object is achieved by the features specified in the independent claims.
Vorteile der ErfindungAdvantages of the invention
In einer ersten Ausführung der erfindungsgemäßen Vorrichtung ist vorgesehen, daß ein Steuergerät über ein Bussystem mit einem Schloßmodul kommuniziert. Sende- und Empfangselektronik einer Antenne sowie eine Schloßelektronik greifen auf eine gemeinsame Buselektronik zu. Diese Komponenten sind baulich in einem Gehäuse zu dem Schloßmodul integriert. Ist das Schloßmodul in einer Kraftfahrzeugtür untergebracht, so sind dessen Komponenten extremenIn a first embodiment of the device according to the invention it is provided that a control device communicates with a lock module via a bus system. Broadcast and Receiver electronics of an antenna and a lock electronics access common bus electronics. These components are structurally integrated in a housing for the lock module. If the lock module is housed in a motor vehicle door, its components are extreme
Temperaturschwankungen und Witterungseinflüssen ausgesetzt. Das Gehäuse bietet den empfindlichen Elektronikkomponenten ausreichenden Schutz sowohl gegen widrige Umwelteinflüsse als auch gegen feindliche Angriffe. Da eine Buselektronik sowohl für die Antennenelektronik als auch für die Schloßelektronik zuständig ist, läßt sich der Verdrahtungsaufwand reduzieren. Durch die hohe Integration der Bauelemente können darüber hinaus Stecker eingespart werden. Entsprechende Signale des Bussystems lösen eine Ansteuerung der Schloßmechanik zur Ver- oder Entriegelung insbesondere einer Kraf fahrzeugtür durch das Schloßmσdul aus. Dadurch ist eine gezielte Manipulation von außen erschwert, da ein verschlüsseltes Busprotokoll simuliert werden muß und das Anlegen der Versorgungsspannung allein nicht ausreicht, einen Öffnungs- oder Schließvorgang derExposed to temperature fluctuations and weather influences. The housing offers the sensitive electronic components adequate protection against adverse environmental influences as well as against hostile attacks. Since bus electronics are responsible for both the antenna electronics and the lock electronics, the wiring effort can be reduced. Thanks to the high level of integration of the components, connectors can also be saved. Corresponding signals of the bus system trigger a control of the lock mechanism for locking or unlocking, in particular a motor vehicle door, through the lock module. This makes targeted manipulation from the outside difficult, since an encrypted bus protocol has to be simulated and the application of the supply voltage alone is not sufficient to open or close the
Schloßmechanik herbeizuführen. Die bauliche Integration der Komponenten in einem Schloßmodul läßt eine rasche Montage zu. Betriebszustände der einzelnen Elektronikkomponenten lassen sich mit Hilfe des Bussystems ohne zusätzlichen Verkabelungsaufwand erfassen und auswerten. Das Schloßmodul kann für mehrere Fahrzeugtypen konzipiert sein, weshalb zunehmende Stückzahlen Kostensenkungen bewirken.To bring about lock mechanics. The structural integration of the components in a lock module allows for quick assembly. Operating states of the individual electronic components can be recorded and evaluated with the help of the bus system without additional wiring. The lock module can be designed for several vehicle types, which is why increasing numbers result in cost reductions.
Durch die in den abhängigen Ansprüchen aufgeführten Maßnahmen sind vorteilhafte Weiterbildungen der erfindungsgemäßen Vorrichtung möglich. Eine Verbesserung sieht vor, daß in dem Gehäuse ein Versteilantrieb untergebracht ist, der die Schloßmechanik betätigt. Dadurch werden Manipulationsversuche von außen erschwert. Die räumliche Integration verringert den Platzbedarf und den Verkabelungsaufwand. Eine gezielte Manipulation des VerStellantriebs setzt eine Zerstörung des Gehäuses voraus.The measures listed in the dependent claims allow advantageous developments of the device according to the invention. An improvement provides that an adjusting drive is housed in the housing, which actuates the lock mechanism. This makes it difficult to manipulate from outside. The spatial integration reduces the space requirement and the Cabling effort. Targeted manipulation of the actuator requires the housing to be destroyed.
Als zweckmäßige Maßnahme ist anzusehen, das Schloßmodul über einen Antennenanschluß mit einer Antenne elektrisch zu verbinden. In Abhängigkeit von den jeweiligen Einbauverhältnissen läßt sich die Antenne individuell an den Fahrzeugtyp anpassen.An expedient measure is to be seen in that the lock module is electrically connected to an antenna via an antenna connection. Depending on the respective installation conditions, the antenna can be individually adapted to the vehicle type.
In einer zweckmäßigen Weiterbildung ist vorgesehen, daß in jeder Tür des Kraftf hrzeugs ein Schloßmodul untergebracht ist, wobei alle Schloßmodule durch das Bussystem vernetzt sind. Ein baulich gleiches Schloßmodul für alle Türen des Kraftfahrzeugs reduziert die Teilevielfalt. Andererseits läßt diese Variante zu, daß die Empfangselektronik die relative Position des Benutzers zu der jeweiligen Türe bestimmt. Die Vernetzung der Schloßmodule durch das Bussystem ermöglicht es, mehrere Türen gezielt zu entriegeln oder zu verriegeln.In an expedient development, it is provided that a lock module is accommodated in each door of the motor vehicle, all lock modules being networked by the bus system. An identical lock module for all doors of the motor vehicle reduces the number of parts. On the other hand, this variant allows the receiving electronics to determine the relative position of the user to the respective door. The networking of the lock modules through the bus system makes it possible to specifically unlock or lock several doors.
In einer Verbesserung ist dem Schloßmodul ein Signalzustand eines Schalters zugeführt. Dadurch läßt sich dieser Signalzustand über das Bussystem an das Steuergerät weitergeben, welches beispielsweise in Abhängigkeit des Signalzustands einen Öffnungs- oder Schließvorgang einleitet .In an improvement, a signal state of a switch is supplied to the lock module. As a result, this signal state can be passed on to the control device via the bus system, which initiates an opening or closing process, for example, depending on the signal state.
In einer erfindungsgemäßen Weiterbildung ist der Verstellantrieb verschlüsselt angesteuert. Der Diebstahlschutz kann durch diese Maßnahme erhöht werden, da das Anlegen der VersorgungsSpannung an den Verstellantrieb allein nicht zu einem Öffnen der Schließmechanik führt.In a further development according to the invention, the adjustment drive is controlled in an encrypted manner. Theft protection can be increased by this measure, since the application of the supply voltage to the adjustment drive alone does not lead to the locking mechanism being opened.
Ein erfindungsgemäßes Verfahren zum Öffnen einer Schließvorrichtung sieht vor, daß in einem ersten Schritt ein Signal zur Einleitung eines ÖffungsVorgangs erzeugt wird, daß in einem zweiten Schritt in Abhängigkeit von dem Signal eine Antenne angesteuert wird, die einen Befehl an einen Transponder sendet, daß in einem dritten Schritt der Transponder eine Antwort erzeugt und diese an die Antenne sendet und daß in einem vierten Schritt in Abhängigkeit von der Antwort die Schloßmechanik angesteuert wird. Ein Entriegelungsvorgang ist ohne Benutzung eines Schlüssels möglich. Der Datenaustausch zwischen Transponder und Antenne verhindert unberechtigtes Öffnen, da die Schloßmechanik nur dann angesteuert wird, wenn die Antwort des Transponders mit der erwarteten übereinstimmt.A method according to the invention for opening a locking device provides that in a first step a signal to initiate an opening process is generated, that in a second step, depending on the signal, an antenna is driven which sends a command to a transponder, that in a third step the transponder generates a response and sends it to the antenna, and that in a fourth step, the lock mechanism is controlled depending on the answer. An unlocking process is possible without using a key. The data exchange between the transponder and antenna prevents unauthorized opening, since the lock mechanism is only activated if the response of the transponder matches the expected one.
In einer vorteilhaften Weiterbildung ist vorgesehen, daß die Einleitung des Öffnungsvorgangs mechanisch erfolgt. EinIn an advantageous development, it is provided that the opening process is initiated mechanically. On
Auslösen des Öffnungεvorganges bei Betätigen eines Türgriffs erhöht den Bedienkomfort, da das herkömmliche Aufsperren des Schlosses entfallen kann.Triggering the opening process when a door handle is actuated increases the ease of use, since the conventional unlocking of the lock can be omitted.
Weitere zweckmäßige Weiterbildungen aus weiteren abhängigen Ansprüchen ergeben sich aus der Beschreibung.Further expedient further developments from further dependent claims result from the description.
Zeichnungdrawing
Es zeigen Figur 1 eine prinzipielle Anordungsmöglichkeit in einem Kraftfahrzeug, Figur 2 ein Blockschaltbild eines Ausführungsbeispiels sowie Figur 3 einen Ablaufplan als Ausführungsbeispiel eines erfindungsgemäßen Verfahrens.FIG. 1 shows a basic arrangement option in a motor vehicle, FIG. 2 shows a block diagram of an exemplary embodiment and FIG. 3 shows a flow chart as an exemplary embodiment of a method according to the invention.
Beschreibung der AusführungsbeispieleDescription of the embodiments
In einem Kraftfahrzeug 10 sind Schloßmodule 19a bis 19e untergebracht, die durch ein Bussystem 12 sowohl untereinander als auch mit einem Steuergerät 11 in Verbindung stehen. Außerhalb des Kraftfahrzeugs 10 befindet sich ein Transponder 13, der mit dem Schloßmodul 19 Daten austauscht. Das Schloßmodul 19 ist durch einen BusanschlußLock modules 19a to 19e are accommodated in a motor vehicle 10 and are connected to each other and to a control unit 11 by a bus system 12. Located outside of the motor vehicle 10 a transponder 13 that exchanges data with the lock module 19. The lock module 19 is through a bus connection
21 mit dem Bussystem 12 verbunden. In einem Gehäuse 20 sind eine Buselektronik 22, eine Schloßelektronik 26 und eine Antennenelektronik 23, bestehend aus einer Sendeelektronik 24 und einer Empfangselektronik 25, untergebracht. Schloßelektronik 26 und Antennenelektronik 23 tauschen Daten aus mit der Buselektronik 22, die den Datenverkehr mit dem Bussystem 12 übernimmt. Ein Antennenanschluß 27 verbindet eine Antenne 28 mit der Antennenelektronik 23. Ein21 connected to the bus system 12. Bus electronics 22, lock electronics 26 and antenna electronics 23, consisting of transmitter electronics 24 and receiver electronics 25, are accommodated in a housing 20. Lock electronics 26 and antenna electronics 23 exchange data with the bus electronics 22, which takes over the data traffic with the bus system 12. An antenna connector 27 connects an antenna 28 to the antenna electronics 23
Signalzustand 33 eines Schalters 32 wird der BuselektronikSignal state 33 of a switch 32 is the bus electronics
22 zugeführt. Die Schloßelektronik 26 gibt ein Signal an einen Verstellantrieb 30 ab, der eine Schloßmechanik 31 zur Ver- oder Entriegelung eines Schlosses betätigt.22 fed. The lock electronics 26 emits a signal to an adjustment drive 30, which actuates a lock mechanism 31 for locking or unlocking a lock.
Als die Schloßmodule 19a bis 19e und das Steuergerät 11 vernetzendes Bussystem 12 kommt in einem Kraftfahrzeug beispielsweise ein CAN-Bus zum Einsatz. Dadurch werden sowohl Datenaustausch - gegebenenfalls auch verschlüsselt - zwischen Schloßmodul 19 und Steuergerät 11 als auch dieA CAN bus, for example, is used in a motor vehicle as the lock modules 19a to 19e and the bus system 12 which networks the control device 11. As a result, both data exchange - and possibly also encrypted - between the lock module 19 and the control unit 11 and the
Energieversorgung des VerStellantriebs 30 realisiert. Der Transponder 13 tauscht mit der Antenne 28 Signale aus. Dabei kann es sich um elektromagnetische Wellen im Hochfrequenzbereich oder um Infrarotsignale handeln. Ein beispielsweise als Steckverbindung ausgeführterPower supply of the adjusting drive 30 realized. The transponder 13 exchanges signals with the antenna 28. These can be electromagnetic waves in the high-frequency range or infrared signals. An example designed as a plug connection
Antennenanschluß 27 stellt eine elektrisch leitende Verbindung zwischen Antenne 28 und Antennenelektronik 23 durch das Gehäuse 20 hindurch her. Übermittelt das Bussystem 12 über die Buselektronik 22 der Sendeelektronik 24 einen Sendebefehl, steuert die Sendeelektronik 24 die Antenne 28 entsprechend an. Empfängt die Antenne 28 hingegen ein Signal, so wandelt die Empfangselektronik 25 dieses in ein Datenformat um, das beispielsweise das Steuergerät 11 nach der Datenübertragung auswerten kann. Der die Schloßmechanik 31 zum Zwecke der Ver- und Entriegelung insbesondere einer Tür betätigende Verstellantrieb 30 kann als Elektroantrieb ausgeführt sein. Die Schloßelektronik 26 versorgt den Verstellantrieb 30 über eine bestimmte Dauer hinweg mit der gewünschten Energie. Ebenso ist eine verschlüsselte Ansteuerung des Versteilantriebs 30 möglich. Das Steuergerät 11 generiert den verschlüsselten Verstellbefehl, den eine spezielle, in dem Verstellantrieb 30 integrierte Elektronik entschlüsselt.Antenna connection 27 establishes an electrically conductive connection between antenna 28 and antenna electronics 23 through housing 20. If the bus system 12 transmits a transmission command to the transmission electronics 24 via the bus electronics 22, the transmission electronics 24 controls the antenna 28 accordingly. On the other hand, if the antenna 28 receives a signal, the receiving electronics 25 converts it into a data format which, for example, the control unit 11 can evaluate after the data transmission. The adjustment mechanism 30, which actuates the lock mechanism 31 for the purpose of locking and unlocking, in particular a door, can be designed as an electric drive. The lock electronics 26 supplies the adjustment drive 30 with the desired energy over a certain period of time. Encrypted control of the adjusting drive 30 is also possible. The control unit 11 generates the encrypted adjustment command, which is decrypted by special electronics integrated in the adjustment drive 30.
Die Schloßelektronik 26 kann verschiedeneThe lock electronics 26 can be different
Überwachungsfunktionen realisieren. Das Ausführungsbeispiel ist jedoch nicht auf elektrische Versteilantriebe 30 beschränkt, ebenso ist eine pneumatische Beeinflussung der Schloßmechanik 31 möglich. Der Schalter 32 kann beispielsweise über einen Türgriff betätigt werden. Die Buselektronik 22 erfaßt den Signalzustand 33 und teilt ihn dem Steuergerät 11 mit.Realize monitoring functions. However, the exemplary embodiment is not limited to electrical adjusting drives 30, and a pneumatic influencing of the lock mechanism 31 is also possible. The switch 32 can be operated, for example, via a door handle. The bus electronics 22 detects the signal state 33 and communicates it to the control unit 11.
Figur 3 beschreibt einen möglichen ÖffnungsVorgang. Zu Beginn des Öffungs organges ist ein Signal „Öffnen einleiten" zu erzeugen, Schritt 101. Ein Fahrer, der das Kraftfahrzeug 10 öffnen bzw. entriegeln will, betätigt über einen Türgriff den Schalter 32. Die Buselektronik 22 erfaßt die Änderung des Signalzustands 33 und teilt sie über das Bussystem 12 dem Steuergerät 11 mit. Die Änderung des Signalzustands 33 löst in dem Steuergerät 11 eine Befehlsprozedur aus, den im folgenden beschriebenen ÖffnungsVorgang einzuleiten. Eine weitere Möglichkeit, ein Signal gemäß Schritt 101 zu erzeugen, besteht darin, daß der Transponder 13 an die Antenne 28 ein Signal sendet. Die Empfangselektronik 25 wertet dieses aus und teilt dem Steuergerät 11 mit, daß ein Signal des Transponders 13 empfangen wurde. Stimmt das gesendete Transpondersignal mit dem vom Steuergerät 11 erwarteten Signal überein, startet der ÖffnungsVorgang. Im folgenden Schritt 102 wird ein Befehl an den Transponder 13 gesendet. Es können unterschiedliche Strategien zum Einsatz kommen, welche Antenne 28 der Schloßmodule 19a bis 19e den Befehl an den Transponder 13 senden soll. Eine erste Variante sieht vor, daß die Antenne 28 des Schloßmoduls 19 sendet, der das Signal „Öffnen einleiten" zugeordnet ist. In einer zweiten Variante trifft das Steuergerät 11 zentral in Abhängigkeit von einem dort hinterlegten Algorithmus eine Entscheidung, welche Schloßmodule 19 mit einem Sendebefehl anzusteuern sind. Eine weitere Alternative besteht darin, daß alle Antennen 28 der Schloßmodule 19a bis 19e den Befehl an den Transponder 13 senden. Der Transponder 13 empfängt den Befehl, der eine Prozedur auslöst, eine Antwort zu senden, Schritt 103. Der Transponder 13 stellt die Antwort in Abhängigkeit von dem gesendeten Befehl, von der im Transponder 13 hinterlegten Antworterstellungs-Prozedur und gegebenenfalls von einem fahrzeugspezifischen Schlüsselwort bereit und sendet sie. Die Antenne 28 des Schloßmoduls 19 empfängt die Antwort, die von der Empfangselektronik 25 ausgewertet und auf das Bussystem 12 gegeben wird.Figure 3 describes a possible opening process. At the beginning of the opening process, a "initiate opening" signal is to be generated, step 101. A driver who wants to open or unlock the motor vehicle 10 actuates the switch 32 via a door handle. The bus electronics 22 detects the change in the signal state 33 and shares it it via the bus system 12 to the control unit 11. The change in the signal state 33 triggers a command procedure in the control unit 11 to initiate the opening process described below. A further possibility of generating a signal in accordance with step 101 is that the transponder 13 sends a signal to the antenna 28. The receiving electronics 25 evaluates this and informs the control unit 11 that a signal of the transponder 13 has been received, if the transmitted transponder signal matches the signal expected by the control unit 11, starts the opening process. In the following step 102, a command is sent to the transponder 13. Different strategies can be used as to which antenna 28 of the lock modules 19a to 19e should send the command to the transponder 13. A first variant provides that the antenna 28 of the lock module 19 transmits to which the signal "initiate opening" is assigned. In a second variant, the control unit 11 makes a decision based on an algorithm stored there, which lock module 19 with a send command A further alternative is that all antennas 28 of the lock modules 19a to 19e send the command to the transponder 13. The transponder 13 receives the command which triggers a procedure to send a response, step 103. The transponder 13 provides the response depending on the command sent, on the response generation procedure stored in the transponder 13 and possibly on a vehicle-specific key word is ready and sent, the antenna 28 of the lock module 19 receives the response, which is evaluated by the receiving electronics 25 and sent to the bus system 12 is given.
Die Schloßmechanik 31 wird in Abhängigkeit von der Antwort angesteuert, Schritt 104. Eine zusätzliche Sicherheitsabfrage überprüft die Antwort, ob sie mit der erwarteten übereinstimmt. Sollte dies nicht der Fall sein, wird der ÖffungsVorgang unterbunden. Bei einer zulässigen Antwort entscheidet das Steuergerät 11, welchen Schloßmodulen 19 der Öffnungsbefehl übermittelt wird. Mehrere Möglichkeiten sind denkbar. In einer ersten Variante erhält nur das Schloßmodul 19 der Fahrertür den Öffnungsbefehl, während dieser in einer zweiten Variante an alle Schloßmodule 19a bis l9e ergeht. Das Bussystem 12 übermittelt den Öffnungsbefehl des Steuergeräts 11 der Buselektronik 22, die diesen an die Schloßelektronik 26 weitergibt. Die Schloßelektronik 26 setzt den Befehl in entsprechende Steuersignale für den Verstellantrieb 30 um, der daraufhin die Schloßmechanik 31 im Sinne eines ÖffnungsVorganges betätigt. In einer dritten Variante ist vorgesehen, daß nur das Schloßmodul 19 im Sinne einesThe lock mechanism 31 is activated depending on the answer, step 104. An additional security question checks the answer whether it matches the expected one. If this is not the case, the opening process is prevented. If the answer is admissible, the control unit 11 decides which lock modules 19 the opening command is transmitted to. Several options are possible. In a first variant, only the lock module 19 of the driver's door receives the opening command, while in a second variant it is sent to all lock modules 19a to l9e. The bus system 12 transmits the opening command from the control unit 11 to the bus electronics 22, which sends this to the lock electronics 26 passes on. The lock electronics 26 converts the command into corresponding control signals for the adjustment drive 30, which then actuates the lock mechanism 31 in the sense of an opening process. In a third variant it is provided that only the lock module 19 in the sense of a
Öffnens angesteuert wird, das die Antwort des Transponders 13 empfangen hat.Opening is controlled, which has received the response of the transponder 13.
Das Verfahren eignet sich insbesondere zum Betreiben der eingangs beschriebenen Schließvorrichtung.The method is particularly suitable for operating the locking device described at the beginning.
Um alle Elektronikkomponenten, die bislang räumlich verteilt in einer Tür untergebracht sind, in einem einzigen Modul zu integrieren, vervollständigt die Steuerelektronik eines Fensterheberantriebs das Schloßmodul 19. In order to integrate all electronic components that were previously housed in a door in a single module in a single module, the control electronics of a window lifter drive complete the lock module 19.

Claims

Ansprüche Expectations
1. Schließvorrichtung für ein Kraftfahrzeug (10), mit einer Schloßmechanik (31) , die von einem Verstellantrieb (30) betätigbar ist, dem eine Schloßelektronik (26) zugeordnet ist, mit einer Antenne (28), die mittels einer1. Locking device for a motor vehicle (10), with a lock mechanism (31) which can be actuated by an adjustment drive (30), to which a lock electronics (26) is assigned, with an antenna (28) which by means of a
Sendeelektronik (24) und/oder Empfangselektronik (25) ansteuerbar ist, mit einem Transponder (13), der Daten mit der Antenne (28) austauscht, mit einem Steuergerät (11) , dadurch gekennzeichnet, daß das Steuergerät (11) durch ein Bussystem (12) über eine Buselektronik (22) mit derTransmitting electronics (24) and / or receiving electronics (25) can be controlled, with a transponder (13) that exchanges data with the antenna (28), with a control device (11), characterized in that the control device (11) by a bus system (12) via a bus electronics (22) with the
Sendeelektronik (24) und/oder Empfangselektronik (25) und/oder der Schloßelektronik (26) in Verbindung steht, wobei Buselektronik (22) , Sendeelektronik (24) und/oder Empfangselektronik (25) und/oder Schloßelektronik (26) baulich in einem Gehäuse (20) zu einem Schloßmodul (19) integriert sind und das Schloßmodul (19) einen Anschluß (21) für das Bussystem (12) aufweist.Transmitting electronics (24) and / or receiving electronics (25) and / or the lock electronics (26) is connected, with bus electronics (22), transmitting electronics (24) and / or receiving electronics (25) and / or lock electronics (26) being structurally all in one Housing (20) are integrated into a lock module (19) and the lock module (19) has a connection (21) for the bus system (12).
2. Schließvorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß in dem Gehäuse (20) der Verstellantrieb (30) untergebracht ist.2. Locking device according to claim 1, characterized in that the adjusting drive (30) is housed in the housing (20).
3. Schließvorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß das Schloßmodul (19) über einen Antennenanschluß (27) mit der Antenne (28) elektrisch verbunden ist.3. Locking device according to one of the preceding claims, characterized in that the lock module (19) is electrically connected to the antenna (28) via an antenna connection (27).
4. Schließvorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß ein Schloßmodul (19) in jeder Tür des Kraftfahrzeugs (10) untergebracht ist und alle Schloßmodule (19) durch das Bussystem (12) vernetzt sind.4. Locking device according to one of the preceding claims, characterized in that a lock module (19) is accommodated in each door of the motor vehicle (10) and all lock modules (19) are networked by the bus system (12).
5. Schließvorrichtung nach einem der vorhergehenden5. Locking device according to one of the preceding
Ansprüche, dadurch gekennzeichnet, daß dem Schloßmodul (19) ein Signalzustand (33) eines Schalters (32) zugeführt ist.Claims, characterized in that the lock module (19) is supplied with a signal state (33) of a switch (32).
6. Schließvorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der Verstellantrieb (30) verschlüsselt angesteuert ist.6. Locking device according to one of the preceding claims, characterized in that the adjustment drive (30) is controlled in an encrypted manner.
7. Verfahren zum Öffnen einer Schließvorrichtung, die eine Schloßmechanik (31) und eine Antenne (28) , die mit einem Transponder (28) Daten austauscht, enthält, dadurch gekennzeichnet, daß in einem ersten Schritt (101) ein Signal zur Einleitung eines ÖffnungsVorgangs erzeugt wird, daß in einem zweiten Schritt (102) in Abhängigkeit von dem Signal die Antenne (28) angesteuert wird, die einen Befehl an den Transponder (13) sende , daß in einem dritten Schritt (103) der Transponder (13) eine Antwort erzeugt und diese an die Antenne (22) sendet, daß in einem vierten Schritt (104) die Schloßmechanik (31) in Abhängigkeit von der Antwort angesteuert wird.7. A method for opening a locking device which contains a lock mechanism (31) and an antenna (28) which exchanges data with a transponder (28), characterized in that in a first step (101) a signal to initiate an opening process it is generated that in a second step (102), depending on the signal, the antenna (28) is driven, which sends a command to the transponder (13), that in a third step (103) the transponder (13) has a response generated and sends this to the antenna (22) that in a fourth step (104) the lock mechanism (31) is controlled depending on the answer.
8. Verfahren nach Anspruch 7, dadurch gekennzeichnet, daß der ÖffnungsVorgang mechanisch eingeleitet wird. 8. The method according to claim 7, characterized in that the opening process is initiated mechanically.
9. Verfahren nach einem der Ansprüche 7 oder 8, dadurch gekennzeichnet, daß im zweiten Schritt (102) alle Antennen (28) den Befehl an den Transponder (13) senden.9. The method according to any one of claims 7 or 8, characterized in that in the second step (102) all antennas (28) send the command to the transponder (13).
10. Verfahren nach einem der Ansprüche 7 bis 9, dadurch gekennzeichnet, daß nur die Schloßmechanik (31) angesteuert wird, deren zugeordnete Antenne (28) die Antwort erhalten hat.10. The method according to any one of claims 7 to 9, characterized in that only the lock mechanism (31) is controlled, the associated antenna (28) has received the answer.
n. Verfahren nach einem der Ansprüche 7 bis 10, dadurch gekennzeichnet, daß ein die Schloßmechanik (31) betätigender Verstellantrieb (30) verschlüsselt angesteuert wird. n. Method according to one of claims 7 to 10, characterized in that an adjusting drive (30) actuating the lock mechanism (31) is controlled in an encrypted manner.
PCT/DE1997/001937 1996-09-27 1997-08-27 Closure device WO1998013566A1 (en)

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EP97941864A EP0929727B1 (en) 1996-09-27 1997-08-27 Closure device
DE59707742T DE59707742D1 (en) 1996-09-27 1997-08-27 CLOSING
AU43760/97A AU4376097A (en) 1996-09-27 1997-08-27 Closure device

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DE19639896.7 1996-09-27
DE19639896A DE19639896A1 (en) 1996-09-27 1996-09-27 Locking device

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DE (2) DE19639896A1 (en)
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DE19939063A1 (en) * 1999-08-18 2001-02-22 Volkswagen Ag Actuating opening and closing functions in motor vehicles involves pre-actuating locking system with long range transponder, carrying out only on approaching with short range transponder
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ES2183214T3 (en) 2003-03-16
AU4376097A (en) 1998-04-17
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DE19639896A1 (en) 1998-04-16
EP0929727A1 (en) 1999-07-21
DE59707742D1 (en) 2002-08-22

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