DE9307176U1 - Electronic anti-theft device for passenger cars - Google Patents
Electronic anti-theft device for passenger carsInfo
- Publication number
- DE9307176U1 DE9307176U1 DE9307176U DE9307176U DE9307176U1 DE 9307176 U1 DE9307176 U1 DE 9307176U1 DE 9307176 U DE9307176 U DE 9307176U DE 9307176 U DE9307176 U DE 9307176U DE 9307176 U1 DE9307176 U1 DE 9307176U1
- Authority
- DE
- Germany
- Prior art keywords
- key
- code
- control
- vehicle
- control system
- 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.)
- Expired - Lifetime
Links
- 238000000034 method Methods 0.000 claims description 3
- 238000004870 electrical engineering Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 230000008571 general function Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R25/00—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles
- B60R25/01—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles operating on vehicle systems or fittings, e.g. on doors, seats or windscreens
- B60R25/04—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles operating on vehicle systems or fittings, e.g. on doors, seats or windscreens operating on the propulsion system, e.g. engine or drive motor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R25/00—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles
- B60R25/10—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles actuating a signalling device
- B60R25/1003—Alarm systems characterised by arm or disarm features
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lock And Its Accessories (AREA)
Description
Dipl.-Ing . W . Knarr, F . Hartmann -- Äut*odl&BatahläJ»ch©rungDipl.-Ing. W. Knarr, F. Hartmann -- Äut*odl&BatahläJ»ch©rung
BeschreibungDescription
Syatem zur Verhinderung von Autodiebstählen durch einen im ZUndachlUaael eingebrachten elektronischen Code.System for preventing car theft by means of an electronic code installed in the roof.
übliche Zündschlösser haben nur eine mechanische Schlüsselcodierung und geben nach einschieben und herumdrehen des Zündschlüssels einen oder mehrere Kontakte frei. Die gleiche Funktion läßt sich durch Kurzschließen der Kabel am Zündschloß erreichen. Auf diese Weise werden zur Zeit die meisten Fahrzeuge gestohlen.Conventional ignition locks only have a mechanical key code and release one or more contacts after inserting and turning the ignition key. The same function can be achieved by short-circuiting the cables on the ignition lock. This is how most vehicles are currently stolen.
Die im Schutzanspruch 1 angegebene Erfindung verhindert diese Diebstahlmethode wirkungsvoll, da bei Ihr eine Datenübertragung zwischen Zündschlüssel und Steuerung erfolgen muß. Da die Auswertung in der Steuerung, die irgendwo an schwer zugänglicher Stelle im Fahrzeug installiert werden kann, erfolgt, besteht die Möglichkeit des Kurzschließens des Fahrzeuges praktisch nicht mehr.The invention specified in claim 1 effectively prevents this method of theft because it requires data transmission between the ignition key and the control unit. Since the evaluation takes place in the control unit, which can be installed somewhere in the vehicle that is difficult to access, the possibility of short-circuiting the vehicle is practically eliminated.
Durch die Integration des Mikrochips in den Fahrzeugschlüssel ergeben sich für den Fahrzeugführer keine merklichen Unterschiede zum jetzigen System. Er kann sein Fahrzeug nach wie vor nur mit dem Zündschlüssel, ohne Merken eines Geheimcodes oder zusätzliches Einschieben von Codekarten, starten.By integrating the microchip into the vehicle key, there are no noticeable differences for the driver compared to the current system. He can still start his vehicle using just the ignition key, without having to remember a secret code or insert additional code cards.
Die im Schutzanspruch 2 angegebene Erweiterung erhöht die Sicherheit des Systems bei Schlüsselabgabe < z.B. in der Werkstatt oder an verschiedene Mitarbeiter), da eine eventuell angefertigte Kopie bereits nach einem Fahrzeugstart mit dem Originalschlüsael unbrauchbar ist.The extension specified in claim 2 increases the security of the system when keys are handed over (e.g. in the workshop or to various employees), since any copy made is unusable after the vehicle is started with the original key.
Dipl.-Ing.W.Knarr, F.Hartmann -- AutodiebstahlaicharungDipl.-Ing.W.Knarr, F.Hartmann -- Car theft prevention
Ein Auaführungabeiapiel der Erfindung wird anhand der beigefügten Zeichnungen Autodiebstahlsicherung Zeichnung 1-4 erläutert.An example of an embodiment of the invention is explained using the attached drawings: Car anti-theft device drawings 1-4.
Aua Zeichnung 1 iat die generelle Funktion dea Systems ersichtlich: The general function of the system is evident from drawing 1:
Der Zündschlüssel (2) wird in daa Zündschloß (D eingeschoben. Dabei wird über zwei im Zündschloß angebrachte, federnde Kontakte (5) und die leicht hervorstehenden Schlüsselkontakte (6) zum einen die Stromversorgung an den im Schlüssel befindlichen Mikrocomputer angelegt, zum anderen die Datenverbindung mit der Steuerung (3) hergestellt. Der im ZUndachloß enthaltene Schutzwiderstand (4) verhindert das Durchbrennen einer Sicherung oder Leitung bei veraehentlichen Kurzachließen des Stromversorgungskontaktes mit der Fahrzeugmasse. Die Zeichnung 4 zeigt den Aufbau dea Schlüssels und der Kontakte im Zündschloß nochmals detail-1ierter. The ignition key (2) is inserted into the ignition lock (D). The power supply is applied to the microcomputer in the key via two spring-loaded contacts (5) installed in the ignition lock and the slightly protruding key contacts (6), and the data connection is established with the control system (3). The protective resistor (4) contained in the ignition lock prevents a fuse or cable from blowing if the power supply contact is accidentally short-circuited with the vehicle ground. Drawing 4 shows the structure of the key and the contacts in the ignition lock in more detail.
Wird nun der Zündschlüssel in Stellung 'Fahrt' gebracht, so fragt die Steuerung den Schlüsselcode ab und vergleicht den gefundenen Code mit dem in ihr abgespeicherten. Bei Übereinstimmung erfolgt die Freigabe der geschützten Stromkreise und der Startvorgang kann normal fortgesetzt werden. Die Freigabe bleibt bia zum Abschalten der Zündung erhalten.If the ignition key is now turned to the 'drive' position, the control system queries the key code and compares the code found with the one stored in it. If they match, the protected circuits are released and the start-up process can continue as normal. The release remains until the ignition is switched off.
Wird ein falacher Code erkannt, so erfolgt keine Freigabe derIf an incorrect code is detected, the
Stromkreise und die Steuerung bleibt für eine bestimmte ZeitCircuits and the control remains for a certain time
(z.B. 5 Minuten) gesperrt, um ein schnelles Durchprobieren verschiedener Codes zu verhindern.(e.g. 5 minutes) to prevent people from quickly trying out different codes.
Dipl.-Ing . W . Knarr, F.Hartmann -- Äu±!odlebaiahla-icharungDipl.-Ing . W . Knarr, F.Hartmann -- Äu±!odlebaiahla-icharung
Die Zeichnungen 3 (Steuerung) und 4 (Schlüaael) zeigen in Form von Blockachaltbildern die für eine Funktion notwendigen Elemente auf, hier für Schutzanspruch 2. Auf die Beifügung einea detaillierten Schaltplanes wurde verzichtet, da der Aufbau einea Mikroprozeasorayatems heute zum Standardwiaaen eina Ingenieurs gehört.Drawings 3 (control) and 4 (key) show the elements required for a function in the form of block diagrams, here for protection claim 2. A detailed circuit diagram has not been included, since the structure of a microprocessor system is now standard practice for an engineer.
Der aicherheitatechniache Wert dieaes Syatema steigt dadurch, daß der den Code lesende und danach stromfreigebende Rechner so im Fahrzeug integriert ist, daß ein Dieb nicht, oder nur unter größtmöglichem Zeitaufwand an diesen herankommt.The security value of this system increases because the computer that reads the code and then releases the power is integrated into the vehicle in such a way that a thief cannot get to it, or can only do so with the greatest possible expenditure of time.
Ferner sollten alle Stromkreise die nicht für das ruhende Fahrzeug benötigt werden über die Steuerung geschaltet werden, so daß ein potentieller Dieb, selbst wenn er an die Kabelzufuhr der Steuerung herankommt einen enormen Zeitaufwand in Kauf nehmen muß, um eine komplette Neuverkabelung vorzunehmen.Furthermore, all circuits that are not required for the stationary vehicle should be switched via the control unit, so that a potential thief, even if he gets to the cable supply of the control unit, has to spend an enormous amount of time doing a complete rewiring.
SelbatveratMndlich bleibt ea dem Einbauer (KFZ-Herateller) vorbehalten, an welcher Stelle er die Steuerung anbringt. Je raffinierter, deato größer ist der Schutz.It is up to the installer (vehicle manufacturer) to decide where to install the control. The more sophisticated, the greater the protection.
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE9307176U DE9307176U1 (en) | 1993-05-07 | 1993-05-07 | Electronic anti-theft device for passenger cars |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE9307176U DE9307176U1 (en) | 1993-05-07 | 1993-05-07 | Electronic anti-theft device for passenger cars |
Publications (1)
Publication Number | Publication Date |
---|---|
DE9307176U1 true DE9307176U1 (en) | 1993-07-22 |
Family
ID=6893164
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE9307176U Expired - Lifetime DE9307176U1 (en) | 1993-05-07 | 1993-05-07 | Electronic anti-theft device for passenger cars |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE9307176U1 (en) |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1994026565A1 (en) * | 1993-05-11 | 1994-11-24 | Carton, Angela | Security system |
DE4330733A1 (en) * | 1993-06-16 | 1994-12-22 | Vdo Schindling | Device for protecting a motor vehicle against theft |
DE4331150A1 (en) * | 1993-09-14 | 1995-03-16 | Roland Schubert | Electronic immobiliser |
WO1995009747A2 (en) * | 1993-10-01 | 1995-04-13 | Marquardt Gmbh | Electronic door locking system for motor vehicles |
WO1995009746A1 (en) * | 1993-10-01 | 1995-04-13 | Marquardt Gmbh | Locking system, in particular for motor vehicles |
DE4338106A1 (en) * | 1993-11-08 | 1995-05-11 | Wallinger Josef M Dr Ing | Security device for motor vehicles |
DE4411435A1 (en) * | 1994-03-31 | 1995-10-05 | Bayerische Motoren Werke Ag | Method for controlling the use of a motor vehicle using a two-part code signal |
EP0704353A1 (en) * | 1994-08-29 | 1996-04-03 | Ford Motor Company | Method and apparatus for enhanced vehicle protection |
FR2727072A1 (en) * | 1994-11-22 | 1996-05-24 | Thouvenot Raymond | Anti-theft mechanism for motor vehicle |
FR2738787A1 (en) * | 1995-09-20 | 1997-03-21 | Peugeot | ANTI-THEFT DEVICE, PARTICULARLY FOR VEHICLES |
DE19545830A1 (en) * | 1995-12-08 | 1997-06-12 | Bayerische Motoren Werke Ag | Vehicle anti-theft protection as transponder and key and readable identification memory |
-
1993
- 1993-05-07 DE DE9307176U patent/DE9307176U1/en not_active Expired - Lifetime
Cited By (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1994026565A1 (en) * | 1993-05-11 | 1994-11-24 | Carton, Angela | Security system |
DE4330733A1 (en) * | 1993-06-16 | 1994-12-22 | Vdo Schindling | Device for protecting a motor vehicle against theft |
DE4331150A1 (en) * | 1993-09-14 | 1995-03-16 | Roland Schubert | Electronic immobiliser |
WO1995009747A3 (en) * | 1993-10-01 | 1995-06-29 | Marquardt Gmbh | Electronic door locking system for motor vehicles |
WO1995009746A1 (en) * | 1993-10-01 | 1995-04-13 | Marquardt Gmbh | Locking system, in particular for motor vehicles |
WO1995009747A2 (en) * | 1993-10-01 | 1995-04-13 | Marquardt Gmbh | Electronic door locking system for motor vehicles |
US5841363A (en) * | 1993-10-01 | 1998-11-24 | Marquardt Gmbh | Locking system especially for automobiles |
DE4338106A1 (en) * | 1993-11-08 | 1995-05-11 | Wallinger Josef M Dr Ing | Security device for motor vehicles |
DE4411435A1 (en) * | 1994-03-31 | 1995-10-05 | Bayerische Motoren Werke Ag | Method for controlling the use of a motor vehicle using a two-part code signal |
EP0704353A1 (en) * | 1994-08-29 | 1996-04-03 | Ford Motor Company | Method and apparatus for enhanced vehicle protection |
FR2727072A1 (en) * | 1994-11-22 | 1996-05-24 | Thouvenot Raymond | Anti-theft mechanism for motor vehicle |
FR2738787A1 (en) * | 1995-09-20 | 1997-03-21 | Peugeot | ANTI-THEFT DEVICE, PARTICULARLY FOR VEHICLES |
EP0764564A1 (en) * | 1995-09-20 | 1997-03-26 | Automobiles Peugeot | Vehicle anti-theft device |
DE19545830A1 (en) * | 1995-12-08 | 1997-06-12 | Bayerische Motoren Werke Ag | Vehicle anti-theft protection as transponder and key and readable identification memory |
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