EP0644975B1 - Systeme de verrouillage central pour vehicules automobiles - Google Patents
Systeme de verrouillage central pour vehicules automobiles Download PDFInfo
- Publication number
- EP0644975B1 EP0644975B1 EP93909868A EP93909868A EP0644975B1 EP 0644975 B1 EP0644975 B1 EP 0644975B1 EP 93909868 A EP93909868 A EP 93909868A EP 93909868 A EP93909868 A EP 93909868A EP 0644975 B1 EP0644975 B1 EP 0644975B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- central locking
- locking system
- actuator
- actuators
- bit
- 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
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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
Definitions
- Such a central locking system is known from DE-OS 36 28 706 and WO-A-9 117 069.
- Each actuator of the central locking system is connected via a bus system to a central processor which evaluates the state parameters of the doors of the motor vehicle which are registered by the signal transmitter units of the individual actuators.
- the data signals supplied by the signal transmitters are then converted into control signals for the control elements of the central locking system in accordance with a program stored in the central processor. This will then be supplied to the control elements via the bus system.
- a disadvantage of the known central locking system is the extremely complex signal flow: the signals must first be routed from each actuator to the central processor and the control signals calculated therein must then in turn be routed to the control elements of the central locking system. This bidirectional signal flow between actuators or control elements and the central processor disadvantageously requires complex bus management.
- the first exemplary embodiment of a central locking system for a motor vehicle shown schematically in FIG. 1, has four actuators 1-4.
- the actuator 1 or 2 serves to lock and secure theft of a right or left front door and the actuator 3 or 4 serves the same purpose for a rear door of a four-door motor vehicle.
- Each actuator 1-4 is connected to a voltage supply via a pair of supply lines 10a, 10b 11 of the motor vehicle connected.
- the number of four actuators shown in FIG. 1 was chosen only as an example. It is readily apparent to the person skilled in the art from the following explanations how he can adapt the arrangement described for a central locking system containing more than four actuators.
- Each actuator 1-4 has a signal transmitter unit 12a-12d consisting of at least one signal transmitter.
- a first signal transmitter 13a of the signal transmitter unit sends a data signal which indicates whether the door to be monitored is open or has been latched or closed.
- a second signal generator 13b indicates that the door is completely closed.
- the third to fifth signal transmitters 13c-13e are used to control the central locking system by the user of the motor vehicle: the third signal transmitter 13c registers via an external input signal, for example a specific position of the car key in the door lock, that the user wants to activate an anti-theft device cooperating with the central locking.
- the fourth and fifth signal transmitters 13d and 13e register that the user is driving the motor vehicle.
- the actuators 3, 4 assigned to these doors - as can be seen from FIG. 1 - have no third to fifth signal transmitters 13c-13e.
- the sixth and seventh signal transmitters 13f-13g serve for monitoring the position or the function of the control elements of the anti-theft device and the central locking system or of functional parts thereof.
- a first message bit indicates the position of the door assigned to the respective actuator: the value "1" of the first message bit means that this door is completely closed.
- the first message bit is followed by a second message bit, which is used for switching on an interior light 5 of the motor vehicle: the value "1" or "0" of the second message bit indicates that this door is closed or pre-latched or opened.
- the second message bit is followed by a bit group consisting of the third and fourth message bits, which in coded form contain the external command signals registered by the third to fifth signal transmitters 13c-13e of an actuator (e.g. actuator 1): the two message bits of this bit group have the value at the same time "0" on, the remaining actuators 2-4 of the central locking system are informed that the user of the motor vehicle wants to unlock the central locking and turn off the anti-theft device.
- the value pair "0, 1" or "1, 0" of this bit group means that the vehicle is locked or the anti-theft device is to be armed.
- Assign the third and fourth message bit both have the value "1", this means that no action should be taken.
- the decentralized control of the central locking system described here has the advantage over conventional systems with a central control that it enables a drastic reduction in the signal information to be transmitted: in conventional central locking systems, all information from each signal generator of each actuator must be transferred to the central electronics and from the central electronics calculated control signals are brought back to the control elements of the central locking and the anti-theft device arranged on the doors of the motor vehicle and interacting with the respective actuator.
- a transmission of control signals for the movement of the actuating elements of each actuator is not relevant for the other actuators, since each actuator 1-4 independently determines these for the actuating elements assigned to it: such a signal transmission between the individual actuators can therefore be omitted completely in a particularly advantageous manner.
- the signal flow required for the functioning of the central locking system is therefore drastically reduced.
- the decentralized control of the central locking system makes it particularly easy to integrate the so-called comfort functions of a central locking system - such as an individual locking and unlocking of a specific door of the motor vehicle.
- the decentralized control used in the described central locking system requires that - since a central processor is not provided - the control units 20a-20d of each actuator 1-4 generate the system clock required for their data processing themselves.
- the signals on the bus system 30 are then sampled with the system clock specific to the respective control unit 20a-20d.
- For a correct data transmission via the bus system 30 it is therefore necessary that there is a correlation between the system clocks of the individual actuators 1-4.
- this can be done in a known manner in that each actuator 1-4 has a highly precise oscillating quartz, so that the individual system clocks coincide with one another with sufficient accuracy in period.
- the synchronization of the individual actuator cycles can also take place in that an actuator is designed as a clock master.
- the distribution then takes place on the bus in message format. It is also particularly advantageous to proceed as follows:
- start bit and the first message bit of each bit block of a message Start bit end bit inserted which has a value complementary to the value of the start bit.
- the receiving actuators of the central locking system are able to determine the system clock of the actuator emitting this message block to recognize: while the start bit is being transmitted on the bus system 30, a reference counter runs in the control unit 20a-20d of each of the receiving actuators, which determines the number of its own system clocks that run during the duration of the start bit.
- the receiving actuator thus knows the length of a bit of the sending actuator in units of its own system clock and can therefore resolve the incoming signal data in time accordingly.
- This particularly simple solution to the synchronism problem that occurs in a central locking system with decentralized control allows a less precise and therefore cheaper oscillator - such as an RC oscillator - to be used to generate the system clock, thereby reducing the manufacturing costs of the control unit of each actuator. It is also advantageous that such a correlation determination has a high error tolerance with regard to deviations in the different system clocks of the actuators, which can then be in a range of 30-200%.
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- Lock And Its Accessories (AREA)
Abstract
Claims (13)
- Système de verrouillage central pour véhicules automobiles, comportant un nombre d'actionneurs (1 à 4) comprenant chacun une unité de signalisateurs (12a à 12d) qui, en fonction des paramètres d'état momentanés d'une ouverture et/ou d'un élément de commande du véhicule surveillés par cette unité, ou en fonction de signaux d'ordre externes, transmet des signaux de données à une unité de commande, qui génère, à partir de ces signaux de données, des signaux de commande à l'aide desquels on commande les éléments de réglage final (22, 23) du système de verrouillage central, qui effectuent le verrouillage et le déverrouillage des ouvertures du véhicule automobile,
caractérisé en ce que chaque actionneur (1 à 4) du système de verrouillage central comporte sa propre unité de commande (processeur) (20a à 20d), vers laquelle sont acheminés les signaux de données de l'unité de signalisateurs (12a; 12b; 12c; 12d) de son actionneur (1; 2; 3; 4), ainsi que des signaux de données sélectionnés venant des unités de signalisateurs (12b à 12d; 12a, 12c, 12d; 12a, 12b, 12d; 12b à l2d) des autres actionneurs (2 à 4; 1, 3, 4; 2 à 4) du système de verrouillage central. - Système de verrouillage central selon la revendication 1, caractérisé en ce que la transmission des données entre les actionneurs (1 à 4) du système de verrouillage central s'effectue par multiplexage temporel par l'intermédiaire d'un système de bus (30) réalisé sous forme d'un système multi-master (multi-maître).
- Système de verrouillage central selon la revendication 1, caractérisé en ce que la transmission des données entre les actionneurs (1 à 4) du système de verrouillage central s'effectue par l'intermédiaire de conducteurs parallèles (30a à 30d), le nombre de conducteurs (30a à 30d) correspondant au nombre de bits à transmettre dans le cadre d'un message d'état du système de verrouillage central.
- Système de verrouillage central selon la revendication 2 ou 3, caractérisé en ce que les actionneurs (1 à 4) du système de verrouillage central comportent chacun une interface logique, qui établit la liaison entre l'unité de commande (20a à 20d) de chaque actionneur (1 à 4) et le système de bus (30).
- Système de verrouillage central selon la revendication 4, caractérisé en ce que l'interface logique de chaque actionneur (1 à 4) est reliée au système de bus (30) par l'intermédiaire d'une sortie, en particulier une sortie open-collecter (à collecteur ouvert), qui génère sur le bus un niveau dominant.
- Système de verrouillage central selon l'une des revendications 1 à 5, caractérisé en ce que chaque message d'état transmis par l'unité de commande (20a à 20d) de l'actionneur (1 à 4) sur le système de bus (30), par l'intermédiaire de l'interface logique, est construit selon une structure standardisée, de façon que chaque message d'état soit transmis sous forme d'un bloc binaire de longueur définie au système de bus (30), et que chaque bloc binaire se compose d'un bit de démarrage suivi par un ou plusieurs bits de message.
- Système de verrouillage central selon la revendication 6, caractérisé en ce que chaque bloc binaire comporte un bit de fin du bit de démarrage, qui est transmis à la suite du bit de démarrage et avant le premier bit de message, le bit de démarrage et le bit de fin de démarrage ayant des valeurs complémentaires.
- Système de verrouillage central selon l'une des revendications 1 à 6 ou 7, caractérisé en ce que les bits de message représentent des bits de parité ou des bits de contrôle ou des signaux de données produits par des capteurs (13a à 13g; 13a' à 13g') des unités de signalisateurs (12a à 12d).
- Système de verrouillage central selon la revendication 8, caractérisé en ce qu'au moins un signalisateur (13c; 13c') d'une unité de signalisateurs (12a, 12b) d'au moins un actionneur (1 à 4) du système de verrouillage central réagit à un signal d'entrée externe, qui est émis par l'utilisateur du véhicule automobile afin d'activer ou de désactiver une protection antivol coopérant avec le verrouillage central.
- Système de verrouillage central selon la revendication 8, caractérisé en ce qu'au moins un signalisateur (13d, 13e; 13d' 13e') d'une unité de signalisateurs (12a, 12b) d'au moins un actionneur (1 à 4) du système de verrouillage central réagit à un signal d'entrée externe, qui est émis par l'utilisateur du véhicule automobile afin d'activer ou de désactiver un verrouillage central.
- Système de verrouillage central selon l'une des revendications précédentes, caractérisé en ce que les capteurs des unités de signalisateurs (12a à 12d) sont réalisés sous forme de détecteurs Hall (13a à 13g) et/ou sous forme de commutateurs conventionnels (13a' à 13g').
- Système de verrouillage central selon l'une des revendications précédentes, caractérisé en ce qu'un seul actionneur (2) parmi les actionneurs du système de verrouillage central sert à commander des composantes de fonctions (5) du véhicule, dont l'activation dépend des paramètres d'état des ouvertures à surveiller, et qui remplissent des fonctions indépendantes de celles de verrouillage central et/ou de protection antivol proprement dites.
- Système de verrouillage central selon l'une des revendications précédentes, caractérisé en ce que chaque actionneur (1 à 4) du système de verrouillage central comporte au moins un pilote (22, 23), qui génère les signaux de réglage pour les éléments de réglage final du verrouillage central et/ou de la protection antivol.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4219212A DE4219212A1 (de) | 1992-06-12 | 1992-06-12 | Zentralverriegelungssystem für Kraftfahrzeuge |
DE4219212 | 1992-06-12 | ||
PCT/EP1993/001049 WO1993025786A1 (fr) | 1992-06-12 | 1993-04-30 | Systeme de verrouillage central pour vehicules automobiles |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0644975A1 EP0644975A1 (fr) | 1995-03-29 |
EP0644975B1 true EP0644975B1 (fr) | 1996-07-17 |
Family
ID=6460843
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP93909868A Expired - Lifetime EP0644975B1 (fr) | 1992-06-12 | 1993-04-30 | Systeme de verrouillage central pour vehicules automobiles |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0644975B1 (fr) |
JP (1) | JPH08501357A (fr) |
DE (2) | DE4219212A1 (fr) |
ES (1) | ES2089818T3 (fr) |
WO (1) | WO1993025786A1 (fr) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19518306B4 (de) * | 1994-05-27 | 2007-04-19 | Volkswagen Ag | Vorrichtung zur Steuerung einer Anzahl von untereinander kommunizierenden Aktuatoren eines Systems |
FR2723127B1 (fr) * | 1994-07-27 | 1996-09-27 | Ymos France Sa | Ensemble constitue d'une serrure electrique de portiere de vehicule automobile associee a ses moyens de commande et d'alimentation |
FR2723129B1 (fr) * | 1994-07-30 | 1997-07-18 | Kiekert Ag | Systeme de fermeture pour vehicule automobile |
DE19613590C2 (de) * | 1996-04-04 | 2001-07-26 | Volkswagen Ag | Verfahren und Vorrichtung zur Steuerung einer Anzahl von untereinander kommunizierenden Aktuatoren |
DE19745689A1 (de) * | 1997-10-16 | 1999-04-22 | Bayerische Motoren Werke Ag | Vorrichtung in Fahrzeugen |
DE10001415C1 (de) * | 2000-01-15 | 2001-06-21 | Bosch Gmbh Robert | Kraftfahrzeug-Türschloß, Kraftfahrzeug-Türschließsystem und Verfahren zur Steuerung eines Kraftfahrzeug-Türschlosses |
DE10101493B9 (de) * | 2001-01-12 | 2007-07-12 | BROSE SCHLIEßSYSTEME GMBH & CO. KG | Kraftfahrzeug-Türschloß, Kraftfahrzeug-Türschließystem und Verfahren zur Steuerung eines Kraftfahrzeug-Türschlosses |
FR2873144B1 (fr) * | 2004-07-13 | 2013-03-22 | Arvinmeritor Light Vehicle Sys | Serrure de vehicule automobile |
DE102007028957A1 (de) | 2007-06-23 | 2008-12-24 | Kiekert Ag | Aktuator für insbesondere Kraftfahrzeugtürschlösser |
DE102012022877B4 (de) | 2012-11-22 | 2023-12-07 | Audi Ag | Verfahren zum Entriegeln und Verriegeln eines Schlosses |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3001331A1 (de) * | 1980-01-16 | 1981-07-23 | Robert Bosch Gmbh, 7000 Stuttgart | Einrichtung zum seriellen uebertragenvon daten in und/oder aus einem kraftfahrzeug |
DE3541995C2 (de) * | 1985-11-28 | 1994-09-01 | Teves Gmbh Alfred | Schaltanordnung für elektromotorische Stellantriebe |
DE3789728T2 (de) * | 1986-05-22 | 1994-12-15 | Chrysler Corp | Serieller Datenbus für verschiedene Betriebsarten (SCI, SPI und gepufferte SPI) und Verfahren für serielle Peripherieschnittstelle in einem seriellen Datenbus. |
DE3628706A1 (de) * | 1986-08-23 | 1988-02-25 | Vdo Schindling | Zentralverriegelungsanlage fuer ein kraftfahrzeug |
DE4006122A1 (de) * | 1990-02-27 | 1991-08-29 | Daimler Benz Ag | Verfahren zur steuerung einer zentralverriegelungsanlage und einer sicherungsvorrichtung fuer kraftfahrzeuge sowie zentralverriegelungsanlage u. sicherungsvorrichtung |
DE4014561A1 (de) * | 1990-05-04 | 1991-11-07 | Teves Gmbh Alfred | Regelsystem fuer kraftfahrzeuge |
-
1992
- 1992-06-12 DE DE4219212A patent/DE4219212A1/de not_active Withdrawn
-
1993
- 1993-04-30 JP JP6501052A patent/JPH08501357A/ja active Pending
- 1993-04-30 EP EP93909868A patent/EP0644975B1/fr not_active Expired - Lifetime
- 1993-04-30 ES ES93909868T patent/ES2089818T3/es not_active Expired - Lifetime
- 1993-04-30 DE DE59303270T patent/DE59303270D1/de not_active Expired - Fee Related
- 1993-04-30 WO PCT/EP1993/001049 patent/WO1993025786A1/fr active IP Right Grant
Also Published As
Publication number | Publication date |
---|---|
ES2089818T3 (es) | 1996-10-01 |
JPH08501357A (ja) | 1996-02-13 |
EP0644975A1 (fr) | 1995-03-29 |
DE4219212A1 (de) | 1993-12-16 |
WO1993025786A1 (fr) | 1993-12-23 |
DE59303270D1 (de) | 1996-08-22 |
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