EP0460986A1 - Central locking device for car doors - Google Patents

Central locking device for car doors Download PDF

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Publication number
EP0460986A1
EP0460986A1 EP91401288A EP91401288A EP0460986A1 EP 0460986 A1 EP0460986 A1 EP 0460986A1 EP 91401288 A EP91401288 A EP 91401288A EP 91401288 A EP91401288 A EP 91401288A EP 0460986 A1 EP0460986 A1 EP 0460986A1
Authority
EP
European Patent Office
Prior art keywords
conductors
control device
key
openings
control unit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP91401288A
Other languages
German (de)
French (fr)
Other versions
EP0460986B1 (en
Inventor
Pierre Periou
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.)
Inteva Products France SAS
Original Assignee
Rockwell Automotive Body Systems France SA
Rockwell Body and Chassis Systems France
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 Rockwell Automotive Body Systems France SA, Rockwell Body and Chassis Systems France filed Critical Rockwell Automotive Body Systems France SA
Publication of EP0460986A1 publication Critical patent/EP0460986A1/en
Application granted granted Critical
Publication of EP0460986B1 publication Critical patent/EP0460986B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • E05B77/22—Functions related to actuation of locks from the passenger compartment of the vehicle
    • E05B77/24—Functions related to actuation of locks from the passenger compartment of the vehicle preventing use of an inner door handle, sill button, lock knob or the like
    • E05B77/28—Functions related to actuation of locks from the passenger compartment of the vehicle preventing use of an inner door handle, sill button, lock knob or the like for anti-theft purposes, e.g. double-locking or super-locking
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B81/00—Power-actuated vehicle locks
    • E05B81/54—Electrical circuits
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B81/00—Power-actuated vehicle locks
    • E05B81/02—Power-actuated vehicle locks characterised by the type of actuators used
    • E05B81/04—Electrical
    • E05B81/06—Electrical using rotary motors
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T70/00—Locks
    • Y10T70/50—Special application
    • Y10T70/5889—For automotive vehicles
    • Y10T70/5973—Remote control
    • Y10T70/5978—With switch
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T70/00—Locks
    • Y10T70/60—Systems
    • Y10T70/625—Operation and control
    • Y10T70/65—Central control

Definitions

  • the present invention relates to a centralized control device for the openings of a motor vehicle. It is used to control door locks, the trunk and other protected access devices such as the fuel filler flap, the glove compartment, etc.
  • the locking or unlocking command for these various openings or access is centralized, that is to say it can be controlled by actuating the key by the lock of one of the front doors or of the boot, by a remote control, or by an anti-aggression button.
  • Door locks have two locking states, a first "locking" state in which the door is locked and a second "deadlock” state which corresponds to a locking mode in which the lock is hookable and can only be unlocked electrically.
  • This central control unit can also receive a “condemnation” or “unlocking” signal transmitted by a remote control made from outside the vehicle, or by an anti-aggression button.
  • an alarm device warning the driver that one of the protected accesses is poorly closed and visually designating the access that is poorly closed.
  • the indication of bad closing is provided by a contactor which is most often in the lock, called CPO contactor door open.
  • the invention therefore aims to create a centralized control device for the openings of a motor vehicle which significantly reduces the number of conductors necessary for the connection between the openings and the central control unit.
  • the subject of the invention is a device for centralized control of the openings of a motor vehicle, in which the openings comprise an electric actuator with double or triple effect, comprising at least one electric motor, and certain openings include a mechanical control device.
  • a lock key supplying orders to a central control unit also receiving orders originating in particular from the ignition key and / or a remote control device, and / or from an anti-aggression button, characterized in that the central control unit is connected to each of the opening elements by a single line with three conductors used sometimes for power transfer, sometimes for information transfer, in that in each opening, the actuator is permanently connected between two or three conductors of said line and in that the central control unit includes means for applying selectively to each of said conductors the tensions necessary for the execution of a sequence.
  • a series of passive electronic components for fixing the voltage level have connected between two contactless conductors in the rest position.
  • Any command to "lock” or “unlock” by the key defines a position of said key which closes the circuit by means of one or more of the aforementioned components and the two conductors, one polarized at the positive voltage of the source via a resistor, the other connected to ground.
  • the central unit comprises a voltage level detector taken at the terminal of the resistor adjoining the components; this detector supplies control signals to the means for applying the polarities corresponding to the demand to the three conductors.
  • the two front doors 2 are equipped with a key lock 7 which is equipped with electrical contacts supplying electrical signals to the central control unit 1 with a view to "unlocking", “locking” or “locking” "openings.
  • Figure 2 is the electrical diagram of the circuit contained in an opening such as a front door.
  • This circuit essentially comprises three conductors 11, 12, 13 each connected to one of the conductors of line 8 (control by the key can take place between 11 and 12 for example).
  • Each opening comprises an electric actuator with triple effect, for example two DC motors M1 and M2; the motor M1 controls the “locking” or the “unlocking” of the opening and the motor M2 controls the “super locking” or the “unlocking” of the lock.
  • the door In the "deadlocking" position, the door cannot be opened using the mechanical control elements of the door, lever or pushbutton, but only by an electric control provided by the introduction of a coded key in the lock 7 or by a remote command received by the detector 6.
  • the motors M1 and M2 are permanently connected between the three conductors 11, 12 and 13.
  • the motor M1 is connected between the conductor 13 and the conductor 12.
  • the second motor M2 is also connected between the conductors 13 and 12.
  • a diode D1 separates the terminals arriving from the motors M1 and M2, the cathode of D1 is connected to M2.
  • the terminal of M2 which is connected to the conductor 12 is extended on the conductor 11 by a diode D2, the cathode of which is connected to this conductor 11.
  • the control is carried out between the conductors 11 and 12. From the conductor 11 a set of three electronic components has been connected, Zener diodes 14 connected in series in the example shown. From the anodes of these Zener, we define three terminals for a switch.
  • the other conductor 12 is connected to the common terminal of a three-position switch 15 by means of a diode 16, the cathode of which is connected to the conductor 12.
  • the role of the diode 16 is to avoid the passage of 'a power current through the Zener diodes if a key request occurs during a power transfer for a "deadlock".
  • This three-position switch is in fact constituted by the coded key introduced into the latch 7; the three possible positions of the lock key 15 correspond to the aforementioned three states, "unlocking", “locking” and “deadlocking". This switch closes a circuit through one or more Zener diodes as required.
  • a resonant circuit consisting of a coil 17 and a capacitor 18 is connected between the two conductors 11 and 12 with the interposition of a contact 19 corresponding to the open door contactor CPO and which is closed when the door is opened or not closed properly.
  • the electrical circuit integrated in the other openings such as the rear doors or the tailgate does not include the elements 14 to 16 corresponding to the key lock 7.
  • Figure 3 shows in a simplified way the circuit of the central control unit.
  • Line 8 is connected to three inputs 21, 22 and 23 which correspond respectively to conductors 11, 12 and 13 of each of the openings. Each of these inputs is connected to the contact of a control relay respectively B1, B2 and B3 which are shown in the idle state.
  • the coils of relays B1, B2 and B3 are controlled by a microprocessor 20 as will be described in detail below.
  • the terminal 23 which corresponds to the conductor 33 of the line 8 and the terminal 22 which corresponds to the conductor 32 of the line 8 are connected to the negative terminal 24 of the supply battery of the vehicle.
  • the relays B2 and B3 are activated, in the working position, the terminals 22 and 23 are connected to the positive terminal 25 of the vehicle battery.
  • the terminal 21 which corresponds to the conductor 31 of the line 8 is connected to the negative terminal 24 of the battery. In the rest position, the terminal 21 is connected to a measurement detector 26 which supplies information to the microprocessor 20. This terminal 21 is biased at the positive voltage by a resistor 10 which is connected to the conductor 21 via the rest contact 27 of relay B1 and the working contact of a switch 30 controlled by actuation of the ignition key.
  • the rest contact 27 of the relay B1 can also be connected to an alternating current generator 28 either by means of plug cicuits connected in series or by means of a resistor in which case the string of plug circuits can be placed in parallel between 12 and 13, or deleted.
  • Each of these plug circuits is tuned to the resonant frequency of the resonant circuit 17, 18 of one of the openings.
  • An alarm device, such as a warning light 29, is connected in parallel to each of the resonant circuits.
  • This indicator can for example be constituted by a light-emitting diode.
  • the activation of the generator 28 is controlled by a signal from the closing of a contact 30 which is closed by the vehicle ignition key and which corresponds to the circuit 5 of FIG. 1.
  • the microprocessor 20 also receives information from the contact 30 on the insertion of the vehicle ignition key. It also receives information via an anti-aggression contact 34 which can be closed by the user when the latter is in the vehicle. Finally, the microprocessor 20 receives an order of "condemnation", “super-lock” or “unlocking” supplied by means of a contact 35 associated with the remote control detector 6.
  • FIG. 4 is a detailed diagram representing the detector circuit 26.
  • the signal from the measurement conductor 31 is sent to three operational amplifiers 41, 42 and 43 which, on the other hand, each receive a reference value adapted to the voltages of the Zener diodes. 14.
  • these reference signals are respectively equal to 2, 4 and 6 Volts.
  • the signal provided by the first operational amplifier 41 is sent to an AND gate 44 with three inputs, the other two inputs of which receive a voltage. positive corresponding to logic state 1.
  • the output of the AND logic gate 44 is sent to a monostable flip-flop 45, the output of which provides a first command signal.
  • the output of the second operational amplifier is sent on an AND logic circuit 46 with three inputs; the second input of this circuit receives the output signal from the operational amplifier 43 and the third input of this circuit receives the inverted output signal from the comparator 41, the inversion being produced by an inverting gate 47.
  • the output of this circuit AND logic 46 controls a second monostable flip-flop 48 whose output also provides an order signal.
  • the output of the operational amplifier 43 is sent on an AND logic circuit 49 with three inputs, the other two inputs of which receive respectively the inverted output signal from the operational amplifier 41 and the inverted output signal from the operational amplifier 42 by through an inverting gate 51.
  • the output of the AND logic circuit 49 controls a third monostable flip-flop 52, the output of which also provides an order signal.
  • FIG. 5 is a diagram showing the detail of the generator 28. It essentially consists of four flip-flops 61, 62, 63 and 64 which are connected in series so as to constitute a ring counter;
  • FIG. 6 is a timing diagram representing respectively the clock signal sent on each of the flip-flops and their output Q.
  • the output signal Q of each of the flip-flops controls a transistor 65 which constitutes a switch arranged between the source of DC voltage and the supply wire of each generator of periodic signals 71, 72, 73 and 74.
  • the output of each of these generators is sent to the conductor 36 of Figure 3 upstream of the plug circuits.
  • the frequencies of the signals supplied by the generators 71 to 74 correspond respectively to the resonance frequencies of each of the resonant circuit assemblies 17, 18 of the door circuit and of the corresponding plug circuit of the central control unit.
  • the voltage read by the detector 26 is the voltage of the battery which is sent from the terminal 25 through the resistor 10.
  • the door key is actuated to obtain the "locking", it is the position corresponding to two diodes 14 in series which is obtained and the two comparators 42 and 43 pass to the logic state "1"; the inverter 51 blocks the AND gate 49 and only the gate 46 passes to the logic state "1", which activates the flip-flop 48 which controls the supply of the coil of the relay B3. It follows that the motor M1 is supplied in the opposite direction to that of the "unlocking". The motor M2 is not activated taking into account the fact that the two terminals are connected to the same positive potential of the supply and that D1 opposes the passage of current, towards 32.
  • the diodes D1 and D2 make it possible to isolate or select M2 according to the polarities applied to the three conductors, this authorizing it to be put to rest during a simple "condemnation" request where M1 alone is activated.
  • the lowest Zener voltage has priority, which determines a priority in the case of two different simultaneous key requests.
  • it is the request for "deadlock” corresponding to the lowest Zener voltage which has priority over the other orders. It is the same for the command of "condemnation” which has priority before a command of "unlocking". This is a choice that can be changed at will. One frees oneself in this way, as well as by protections on the monostable rockers of the emission of two different simultaneous orders.
  • the Zener diodes 14 can be replaced by other electronic components dividing a voltage applied across the two conductors.
  • the microprocessor 20 can also be controlled by the remote control shown diagrammatically by the contact 35 which provides "unlocking” or "condemnation” information to the microprocessor 20.
  • the device according to the invention also comprises an anti-aggression device shown diagrammatically by the contact 34 which is actuated by the occupant of the vehicle when he is inside it and which also transmits order information. "condemnation" to the microprocessor 20.
  • the microprocessor 20 also receives information relating to the vehicle ignition key (contact 30).
  • the information provided by actuation of the vehicle ignition key authorizes actuation of the anti-aggression device and inhibits the remote control.
  • actuation of the vehicle ignition key controls the procedure for monitoring the door contacts by activating the generator 28 quine therefore only works when the ignition key is in the active position. In this position, the positive DC voltage applied to the control conductor 21 which is then subjected to the periodic signals supplied by the generator 28 is eliminated.
  • monitoring is interrupted for a short time by the microprocessor 20 so as to honor the order.
  • the door closing status is monitored using only two conductors, namely conductors 31-32.
  • the generator supplies a series of pulses of different frequencies which correspond respectively to the resonant frequencies of the pairs of resonant circuit-plug circuit of the central control unit and of each door.
  • the current flows through the two conductors 11 and 12, there is a drop in impedance of the resonant circuit at the resonance frequency of the door considered, and it follows that the voltage across the corresponding plug circuit of the central control unit takes a high value, which activates the alarm constituted for example by the light 29 which flashes according to the cyclic frequency of the generator 28.
  • the generator 28 supplies a complex voltage of several equal voltages whose frequencies correspond to the frequencies of the resonant circuits.
  • a summing circuit to send the set of frequencies to the conductor 11.
  • the four signal generators are continuously supplied, the ring counter is no longer used.
  • only a generator with a single frequency is provided in the central control unit and, in each door, the series resonant circuit is replaced by a vibrator operating at the frequency supplied by the generator of the central control unit.
  • This variant makes it possible to limit the size of the dashboard by numerous indicators. It is however possible to provide a single indicator constituting a permanent alarm while the operation of the buzzer is delayed and the audible signal stops after a certain time.
  • a capacitor can be arranged in series with each of the vibrators. As the door is not closed properly, the door occupant's attention is drawn much faster, especially when it comes to rear doors.
  • the plug circuits are eliminated, and the generator 28 permanently sends cyclic trains of periodic waves of different frequencies.
  • These signals pass through a resistor located in series with the generator 28 in the central unit. With the impedance presented by the resonant circuits, this resistor acts as a voltage divider bridge: at its terminal adjoining the conductor 21, we look at the amplitude of each of the signals passing through it. In the absence of a door which is not closed properly, the amplitude of the signal at the cited terminal is that of the signal emitted by the generator 28. As soon as a door contact 19 closes, this amplitude falls like a voltage divider bridge for the signal at the resonant frequency of the door not closed properly.
  • the series of plug circuits in parallel between the two conductors 21 and 22 in the central unit, that is to say between the output 36 of the generator connected to the conductor 21, and the minus polarity of the battery connected to conductor 22.
  • the generator 28 permanently sends cyclically the periodic wave trains at the different frequencies, through a resistor.
  • each plug circuit On reception of its own frequency each plug circuit has a high impedance. As soon as the door contact 19 of the corresponding resonant circuit is closed, the impedance across the terminals of said plug circuit drops, the same goes for the voltage across its terminals. An alarm is triggered as soon as this voltage drop is detected.
  • the invention makes it possible, by using only three connecting conductors forming a bus between the central control unit and each of the opening elements, to centrally control the opening, "locking" and even a “deadlocking" of the doors. and send from each of the doors, the necessary orders supplied by the door key.
  • Another advantage of the invention lies in the fact that only passive elements are housed in the doors, which is important from the point of view of cost and reliability.
  • the invention also applies to opening elements comprising a double-acting actuator such as opening elements without “deadlocking” (luggage compartment, petrol door, etc.).
  • the actuator is a reversible motor, it will be permanently connected between two conductors.

Abstract

L'invention concerne un dispositif de commande centralisée des ouvrants d'un véhicule automobile, dans lequel les ouvrants comportent un actionneur électrique à triple effet, dont deux états de verrouillage, comportant au moins un moteur électrique, et certains ouvrants comportent un dispositif de commande mécanique à clé de serrure fournissant des ordres à une unité centrale de commande recevant par ailleurs des ordres provenant en particulier de la clé de contact et/ou d'un appareil de commande à distance, ainsi que d'un bouton anti-agression.Le dispositif selon l'invention est caractérisé en ce que l'unité centrale de commande est reliée à chacun des ouvrants par une ligne unique (8) à trois conducteurs (31, 32, 33) qui seront utilisés tantôt en transfert de puissance, tantôt en transfert d'informations, en ce que dans chaque ouvrant, l'actionneur est branché en permanence entre les trois conducteurs de ladite ligne (8) et en ce que l'unité centrale de commande comporte des moyens (20, 26) pour appliquer sélectivement sur chacun desdits conducteurs (31, 32, 33) les tensions nécessaires à l'exécution d'une séquence.The invention relates to a device for centralized control of the openings of a motor vehicle, in which the openings comprise a triple-effect electric actuator, including two locking states, comprising at least one electric motor, and certain openings comprise a control device mechanical lock key supplying orders to a central control unit which also receives orders coming in particular from the ignition key and/or from a remote control device, as well as from an anti-aggression button. device according to the invention is characterized in that the central control unit is connected to each of the openings by a single line (8) with three conductors (31, 32, 33) which will be used sometimes in power transfer, sometimes in transfer of information, in that in each opening, the actuator is permanently connected between the three conductors of said line (8) and in that the central control unit comprises means ( 20, 26) to selectively apply to each of said conductors (31, 32, 33) the voltages necessary for the execution of a sequence.

Description

La présente invention concerne un dispositif de commande centralisée des ouvrants d'un véhicule automobile. Il est destiné à commander les serrures de portes, le coffre et d'autres dispositifs à accès protégés tels que la trappe à essence, la boîte à gants etc.The present invention relates to a centralized control device for the openings of a motor vehicle. It is used to control door locks, the trunk and other protected access devices such as the fuel filler flap, the glove compartment, etc.

La commande du verrouillage ou du déverrouillage de ces différents ouvrants ou accès est centralisée, c'est-à-dire qu'elle peut être commandée par l'actionnement de la clé par la serrure d'une des portes avant ou du coffre, par une commande à distance, ou par un bouton anti-agression.The locking or unlocking command for these various openings or access is centralized, that is to say it can be controlled by actuating the key by the lock of one of the front doors or of the boot, by a remote control, or by an anti-aggression button.

Les serrures de porte présentent deux états de verrouillage, un premier état de "condamnation" dans lequel la porte est verrouillée et un deuxième état de "supercondamnation" qui correspond à un mode de verrouillage dans lequel la serrure est incrochetable et ne peut être déverrouillée que par voie électrique.Door locks have two locking states, a first "locking" state in which the door is locked and a second "deadlock" state which corresponds to a locking mode in which the lock is hookable and can only be unlocked electrically.

Dans les systèmes à commande centralisée, l'action de la clef dans la serrure d'une des portes avant crée des signaux électriques qui sont transmis à une unité centrale de commande qui envoie un ordre de "condamnation" ou de "décondamnation" à tous les ouvrants ou accès protégés.In systems with centralized control, the action of the key in the lock of one of the front doors creates electrical signals which are transmitted to a central control unit which sends an order of "condemnation" or "unlocking" to all opening or protected access.

Cette unité centrale de commande peut également recevoir un signal de "condamnation" ou de "décondamnation" transmis par une commande à distance faite de l'extérieur du véhicule, ou par un bouton anti-agression.This central control unit can also receive a “condemnation” or “unlocking” signal transmitted by a remote control made from outside the vehicle, or by an anti-aggression button.

Par ailleurs, on prévoit généralement dans les véhicules automobiles un dispositif d'alarme prévenant le conducteur qu'un des accès protégés est mal fermé et désignant de manière visuelle l'accès qui est mal fermé. L'indication de mauvaise fermeture est fournie par un contacteur qui est le plus souvent dans la serrure, appelé C.P.O contacteur porte ouverte.Furthermore, there is generally provided in motor vehicles an alarm device warning the driver that one of the protected accesses is poorly closed and visually designating the access that is poorly closed. The indication of bad closing is provided by a contactor which is most often in the lock, called CPO contactor door open.

Il en résulte que, pour réaliser toutes ces fonctions, il est nécessaire de connecter un nombre important de conducteurs à chaque accès protégé ; ce nombre peut s'élever à huit dans le cas d'une porte avant présentant un système de "supercondamnation". Or l'opération de câblage électrique d'un ouvrant de véhicule automobile est peu aisée et demeure chère.As a result, to achieve all these functions, it is necessary to connect a large number of conductors to each protected access; this number can rise to eight in the case of a front door with a “deadlock” system. However, the electrical wiring operation of a motor vehicle opening is not very easy and remains expensive.

L'invention vise donc à créer un dispositif de commande centralisée des ouvrants d'un véhicule automobile qui permet de réduire notablement le nombre de conducteurs nécessaires pour la liaison entre les ouvrants et l'unité centrale de commande.The invention therefore aims to create a centralized control device for the openings of a motor vehicle which significantly reduces the number of conductors necessary for the connection between the openings and the central control unit.

L'invention a pour objet un dispositif de commande centralisée des ouvrants d'un véhicule automobile, dans lequel les ouvrants comportent un actionneur électrique à double ou à triple effet, comportant au moins un moteur électrique, et certains ouvrants comportent un dispositif de commande mécanique à clé de serrure fournissant des ordres à une unité centrale de commande recevant par ailleurs des ordres provenant en particulier de la clé de contact et/ou d'un appareil de commande à distance, et/ou d'un bouton anti-agression, caractérisé en ce que l'unité centrale de commande est reliée à chacun des ouvrants par une ligne unique à trois conducteurs utilisés tantôt en transfert de puissance, tantôt en transfert d'informations, en ce que dans chaque ouvrant, l'actionneur est branché en permanence entre deux ou trois conducteurs de ladite ligne et en ce que l'unité centrale de commande comporte des moyens pour appliquer sélectivement sur chacun desdits conducteurs les tensions nécessaires à l'exécution d'une séquence.The subject of the invention is a device for centralized control of the openings of a motor vehicle, in which the openings comprise an electric actuator with double or triple effect, comprising at least one electric motor, and certain openings include a mechanical control device. with a lock key supplying orders to a central control unit also receiving orders originating in particular from the ignition key and / or a remote control device, and / or from an anti-aggression button, characterized in that the central control unit is connected to each of the opening elements by a single line with three conductors used sometimes for power transfer, sometimes for information transfer, in that in each opening, the actuator is permanently connected between two or three conductors of said line and in that the central control unit includes means for applying selectively to each of said conductors the tensions necessary for the execution of a sequence.

Selon une autre caractéristique de l'invention, dans les ouvrants comportant une commande mécanique à clé de serrure, une série de composants électroniques passifs de fixation de niveau de tension eut branchée entre deux conducteurs sans contact en position de repos.According to another characteristic of the invention, in the openings comprising a mechanical control with a key lock, a series of passive electronic components for fixing the voltage level have connected between two contactless conductors in the rest position.

Toute commande de "condamnation" ou de "décondamnation" par la clé définit une position de ladite clé qui referme le circuit par l'intermédiaire d'un ou plusieurs des composants précités et les deux conducteurs, l'un polarisé à la tension positive de la source par l'intermédiaire d'une résistance, l'autre relié à la masse. L'unité centrale comporte un détecteur de niveau de tension prise à la borne de la résistance attenante aux composants ; ce détecteur fournit des signaux de commande aux moyens pour appliquer aux trois conducteurs les polarités correspondant à la demande.Any command to "lock" or "unlock" by the key defines a position of said key which closes the circuit by means of one or more of the aforementioned components and the two conductors, one polarized at the positive voltage of the source via a resistor, the other connected to ground. The central unit comprises a voltage level detector taken at the terminal of the resistor adjoining the components; this detector supplies control signals to the means for applying the polarities corresponding to the demand to the three conductors.

L'invention sera mieux comprise à l'aide de la deucription qui va suivre, donnée uniquement à titre d'exemple et faite en se référant aux dessins annexés sur lesquels :

  • la figure 1 est un schéma synoptique d'un mode de réalisation de l'invention ;
  • la figure 2 est le schéma du circuit se trouvant dans un ouvrant avant ;
  • la figure 3 est le schéma synoptique de l'unité centrale de commande ;
  • les figures 4 et 5 sont des schémas de détail de l'unité centrale de commande ;
  • la figure 6 est un diagramme explicatif de la figure 5.
  • la figure 1 est un schéma synoptique général d'un dispositif selon l'invention qui comprend essentiellement une unité centrale de commande 1 qui est destinée à commander la "décondamnation", la "condamnation" ou la "supercondamnation" d'ouvrants tels que des portes avant 2, des portes arrière 3 et un hayon 4. L'unité centrale de commande peut recevoir des ordres fournis par le mécanisme de la clé de contact 5, un récepteur de télécommande 6, ou par un bouton anti-agression.
The invention will be better understood with the aid of the following description, given solely by way of example and made with reference to the appended drawings in which:
  • Figure 1 is a block diagram of an embodiment of the invention;
  • Figure 2 is the circuit diagram located in a front opening;
  • Figure 3 is the block diagram of the central control unit;
  • Figures 4 and 5 are detail diagrams of the central control unit;
  • Figure 6 is an explanatory diagram of Figure 5.
  • FIG. 1 is a general block diagram of a device according to the invention which essentially comprises a central control unit 1 which is intended to control the "unlocking", the "locking" or the "deadlocking" of opening elements such as front doors 2, rear doors 3 and a tailgate 4. The central control unit can receive orders supplied by the ignition key mechanism 5, a remote control receiver 6, or by an anti-aggression button.

Les deux portes avant 2 sont équipées d'un verrou à clé 7 qui est équipé de contacts électriques fournissant des signaux électriques à l'unité centrale de commande 1 en vue de la "décondamnation", de la "condamnation" ou de la "supercondamnation" des ouvrants.The two front doors 2 are equipped with a key lock 7 which is equipped with electrical contacts supplying electrical signals to the central control unit 1 with a view to "unlocking", "locking" or "locking" "openings.

La structure des différents éléments de ce schéma est telle que la connexion entre l'unité centrale 1 et les différents ouvrants est réalisée simplement par une ligne 8 à trois conducteurs 31, 32, 33 qui constitue une sorte de liaison omnibus contre l'unité centrale de commande 1 et les ouvrants, chacun de ceux-ci étant branché en parallèle sur la ligne 8.The structure of the various elements of this diagram is such that the connection between the central unit 1 and the various openings is simply carried out by a line 8 with three conductors 31, 32, 33 which constitutes a sort of omnibus connection against the central unit 1 and the openings, each of these being connected in parallel on line 8.

La figure 2 est le schéma électrique du circuit contenu dans un ouvrant tel qu'une porte avant. Ce circuit comprend essentiellement trois conducteurs 11, 12, 13 reliés chacun à un des conducteurs de la ligne 8 (la commande par la clé peut s'opérer entre 11 et 12 par exemple).Figure 2 is the electrical diagram of the circuit contained in an opening such as a front door. This circuit essentially comprises three conductors 11, 12, 13 each connected to one of the conductors of line 8 (control by the key can take place between 11 and 12 for example).

Chaque ouvrant comporte un actionneur électriques à triple effet, par exemple deux moteurs à courant continu M1 et M2 ; le moteur M1 commande la "condamnation" ou la "décondamnation" de l'ouvrant et le moteur M2 commande la "supercondamnation" ou la "décondamnation" de la serrure. Dans la position de "supercondamnation", la porte ne peut être ouverte en utilisant les éléments mécaniques de commande de la porte, levier ou poussoir, mais seulement par une commande électrique fournie par l'introduction d'une clé codée dans le verrou 7 ou par une commande à distance reçue par le détecteur 6.Each opening comprises an electric actuator with triple effect, for example two DC motors M1 and M2; the motor M1 controls the "locking" or the "unlocking" of the opening and the motor M2 controls the "super locking" or the "unlocking" of the lock. In the "deadlocking" position, the door cannot be opened using the mechanical control elements of the door, lever or pushbutton, but only by an electric control provided by the introduction of a coded key in the lock 7 or by a remote command received by the detector 6.

Selon l'invention, pour chaque actionneur, les moteurs M1 et M2, sont branchés en permanence entre les trois conducteurs 11, 12 et 13. Dans l'exemple représenté, le moteur M1 est branché entre le conducteur 13 et le conducteur 12. Le deuxième moteur M2 est également branché entre les conducteurs 13 et 12. Sur ce conducteur 12 une diode D1 sépare les bornes arrivant des moteurs M1 et M2, la cathode de D1 est reliée à M2. Par ailleurs, la borne de M2 qui se rattache au conducteur 12 est prolongée sur le conducteur 11 par une diode D2, dont la cathode est connectée à ce conducteur 11. La commande s'effectue entre les conducteurs 11 et 12. A partir du conducteur 11 on a branché un ensemble de trois composants électroniques, des diodes Zener 14 branchées en série dans l'exemple représenté. A partir des anodes de ces Zener, on définit trois bornes pour un commutateur.According to the invention, for each actuator, the motors M1 and M2 are permanently connected between the three conductors 11, 12 and 13. In the example shown, the motor M1 is connected between the conductor 13 and the conductor 12. The second motor M2 is also connected between the conductors 13 and 12. On this conductor 12 a diode D1 separates the terminals arriving from the motors M1 and M2, the cathode of D1 is connected to M2. Furthermore, the terminal of M2 which is connected to the conductor 12 is extended on the conductor 11 by a diode D2, the cathode of which is connected to this conductor 11. The control is carried out between the conductors 11 and 12. From the conductor 11 a set of three electronic components has been connected, Zener diodes 14 connected in series in the example shown. From the anodes of these Zener, we define three terminals for a switch.

L'autre conducteur 12 est relié à la borne commune d'un commutateur 15 à trois positions par l'intermédiaire d'une diode 16 dont la cathode est reliée au conducteur 12. Le rôle de la diode 16 est d'éviter le passage d'un courant de puissance par les diodes Zener si une demande de clé se produit durant un transfert de puissance pour une "supercondamnation". Ce commutateur à trois positions est en fait constitué par la clé codée introduite dans le verrou 7 ; les trois positions possibles de la clé de verrou 15 correspondent aux trois états précités, "décondamnation", "condamnation" et "supercondamnation". Ce commutateur ferme un circuit à travers une ou plusieurs diodes Zener selon la demande.The other conductor 12 is connected to the common terminal of a three-position switch 15 by means of a diode 16, the cathode of which is connected to the conductor 12. The role of the diode 16 is to avoid the passage of 'a power current through the Zener diodes if a key request occurs during a power transfer for a "deadlock". This three-position switch is in fact constituted by the coded key introduced into the latch 7; the three possible positions of the lock key 15 correspond to the aforementioned three states, "unlocking", "locking" and "deadlocking". This switch closes a circuit through one or more Zener diodes as required.

Enfin, un circuit résonant constitué d'une bobine 17 et d'un condensateur 18 est branché entre les deux conducteurs 11 et 12 avec interposition d'un contact 19 correspondant au contacteur de porte ouverte C.P.O et qui est fermé lorsque la porte est ouverte ou mal fermée.Finally, a resonant circuit consisting of a coil 17 and a capacitor 18 is connected between the two conductors 11 and 12 with the interposition of a contact 19 corresponding to the open door contactor CPO and which is closed when the door is opened or not closed properly.

Le circuit électrique intégré dans les autres ouvrants tels que les portes arrière ou le hayon ne comprennent pas les éléments 14 à 16 correspondant au verrou à clé 7.The electrical circuit integrated in the other openings such as the rear doors or the tailgate does not include the elements 14 to 16 corresponding to the key lock 7.

La figure 3 représente de manière simplifiée le circuit de l'unité centrale de commande. La ligne 8 est reliée à trois entrées 21, 22 et 23 qui correspondent respectivement aux conducteurs 11, 12 et 13 de chacun des ouvrants. Chacune de ces entrées est reliée au contact d'un relais de commande respectivement B1, B2 et B3 qui sont représentés à l'état de repos. Les bobines des relais B1, B2 et B3 sont commandées par un microprocesseur 20 comme cela sera décrit en détail plus loin. A l'état de repos correspondant au véhicule abandonné, la borne 23 qui correspond au conducteur 33 de la ligne 8 et la borne 22 qui correspond au conducteur 32 de la ligne 8 sont reliées à la borne négative 24 de la batterie d'alimentation du véhicule. Lorsque les relais B2 et B3 sont activés, en position de travail, les bornes 22 et 23 sont reliées à la borne positive 25 de la batterie du véhicule.Figure 3 shows in a simplified way the circuit of the central control unit. Line 8 is connected to three inputs 21, 22 and 23 which correspond respectively to conductors 11, 12 and 13 of each of the openings. Each of these inputs is connected to the contact of a control relay respectively B1, B2 and B3 which are shown in the idle state. The coils of relays B1, B2 and B3 are controlled by a microprocessor 20 as will be described in detail below. In the rest state corresponding to the abandoned vehicle, the terminal 23 which corresponds to the conductor 33 of the line 8 and the terminal 22 which corresponds to the conductor 32 of the line 8 are connected to the negative terminal 24 of the supply battery of the vehicle. When the relays B2 and B3 are activated, in the working position, the terminals 22 and 23 are connected to the positive terminal 25 of the vehicle battery.

Lorsque le relais B1 est activé, la borne 21 qui correspond au conducteur 31 de la ligne 8 est reliée à la borne négative 24 de la batterie. En position de repos, la borne 21 est reliée à un détecteur de mesure 26 qui fournit des informations au microprocesseur 20. Cette borne 21 est polarisée à la tension positive par une résistance 10 qui est reliée au conducteur 21 par l'intermédiaire du contact repos 27 du relais B1 et du contact travail d'un interrupteur 30 commandé par l'actionnement de la clé de contact.When the relay B1 is activated, the terminal 21 which corresponds to the conductor 31 of the line 8 is connected to the negative terminal 24 of the battery. In the rest position, the terminal 21 is connected to a measurement detector 26 which supplies information to the microprocessor 20. This terminal 21 is biased at the positive voltage by a resistor 10 which is connected to the conductor 21 via the rest contact 27 of relay B1 and the working contact of a switch 30 controlled by actuation of the ignition key.

Par ailleurs, quand le véhicule est utilisé, la clé de contact étant mise, le contact repos 27 du relais B1 peut aussi être relié à un générateur 28 de courant alternatif soit par l'intermédiaire de cicuits bouchons branchés en série soit par l'intermédiaire d'une résistance auquel cas le chapelet de circuits bouchons peut être mis en parallèle entre 12 et 13, ou supprimé. Chacun de ces circuits bouchons est accordé sur la fréquence de résonance du circuit résonant 17, 18 d'un des ouvrants. Un dispositif d'alarme, tel qu'un voyant 29, est branché en parallèle sur chacun des circuits résonants. Ce voyant peut par exemple être constitué par une diode électroluminescente.Furthermore, when the vehicle is used, the ignition key being put on, the rest contact 27 of the relay B1 can also be connected to an alternating current generator 28 either by means of plug cicuits connected in series or by means of a resistor in which case the string of plug circuits can be placed in parallel between 12 and 13, or deleted. Each of these plug circuits is tuned to the resonant frequency of the resonant circuit 17, 18 of one of the openings. An alarm device, such as a warning light 29, is connected in parallel to each of the resonant circuits. This indicator can for example be constituted by a light-emitting diode.

La mise en fonctionnement du générateur 28 est commandée par un signal provenant de la fermeture d'un contact 30 qui est fermé par la clé de contact du véhicule et qui correspond au circuit 5 de la figure 1.The activation of the generator 28 is controlled by a signal from the closing of a contact 30 which is closed by the vehicle ignition key and which corresponds to the circuit 5 of FIG. 1.

Le microprocesseur 20 reçoit également une information du contact 30 sur l'insertion de la clé de contact du véhicule. Il reçoit également une information par l'intermédiaire d'un contact anti-agression 34 qui peut être fermé par l'usager lorsque celui-ci se trouve dans le véhicule. Enfin, le microprocesseur 20 reçoit un ordre de "condamnation", de "supercondamnation" ou de "décondamnation" fourni par l'intermédiaire d'un contact 35 associé au détecteur de commande à distance 6.The microprocessor 20 also receives information from the contact 30 on the insertion of the vehicle ignition key. It also receives information via an anti-aggression contact 34 which can be closed by the user when the latter is in the vehicle. Finally, the microprocessor 20 receives an order of "condemnation", "super-lock" or "unlocking" supplied by means of a contact 35 associated with the remote control detector 6.

La figure 4 est un schéma de détail représentant le circuit détecteur 26. Le signal provenant du conducteur de mesure 31 est envoyé sur trois amplificateurs opérationnels 41, 42 et 43 qui reçoivent d'autre part chacun une valeur de consigne adaptée aux tensions des diodes Zener 14.FIG. 4 is a detailed diagram representing the detector circuit 26. The signal from the measurement conductor 31 is sent to three operational amplifiers 41, 42 and 43 which, on the other hand, each receive a reference value adapted to the voltages of the Zener diodes. 14.

Dans l'exemple représenté, ces signaux de référence sont respectivement égaux à 2, 4 et 6 Volts. Le signal fourni par le premier amplificateur opérationnel 41 est envoyé sur une porte ET 44 à trois entrées dont les deux autres entrées reçoivent une tension positive correspondant à l'état logique 1. La sortie de la porte logique ET 44 est envoyée sur une bascule monostable 45 dont la sortie fournit un premier signal d'ordre.In the example shown, these reference signals are respectively equal to 2, 4 and 6 Volts. The signal provided by the first operational amplifier 41 is sent to an AND gate 44 with three inputs, the other two inputs of which receive a voltage. positive corresponding to logic state 1. The output of the AND logic gate 44 is sent to a monostable flip-flop 45, the output of which provides a first command signal.

La sortie du deuxième amplificateur opérationnel est envoyée sur un circuit logique ET 46 à trois entrées ; la deuxième entrée de ce circuit reçoit le signal de sortie de l'amplificateur opérationnel 43 et la troisième entrée de ce circuit reçoit le signal de sortie inversé du comparateur 41, l'inversion étant réalisée par une porte inverseuse 47. La sortie de ce circuit logique ET 46 commande une deuxième bascule monostable 48 dont la sortie fournit également un signal d'ordre.The output of the second operational amplifier is sent on an AND logic circuit 46 with three inputs; the second input of this circuit receives the output signal from the operational amplifier 43 and the third input of this circuit receives the inverted output signal from the comparator 41, the inversion being produced by an inverting gate 47. The output of this circuit AND logic 46 controls a second monostable flip-flop 48 whose output also provides an order signal.

La sortie de l'amplificateur opérationnel 43 est envoyée sur un circuit logique ET 49 à trois entrées dont les deux autres entrées reçoivent respectivement le signal inversé de sortie de l'amplificateur opérationnel 41 et le signal de sortie inversé de l'amplificateur opérationnel 42 par l'intermédiaire d'une porte inverseuse 51. La sortie du circuit logique ET 49 commande une troisième bascule monostable 52 dont la sortie fournit également un signal d'ordre.The output of the operational amplifier 43 is sent on an AND logic circuit 49 with three inputs, the other two inputs of which receive respectively the inverted output signal from the operational amplifier 41 and the inverted output signal from the operational amplifier 42 by through an inverting gate 51. The output of the AND logic circuit 49 controls a third monostable flip-flop 52, the output of which also provides an order signal.

La figure 5 est un schéma montrant le détail du générateur 28. Il est essentiellement constitué de quatre bascules 61, 62, 63 et 64 qui sont branchées en série de manière à constituer un compteur en anneau ; la figure 6 est un chronogramme représentant respectivement le signal d'horloge envoyé sur chacune des bascules et leur sortie Q.FIG. 5 is a diagram showing the detail of the generator 28. It essentially consists of four flip-flops 61, 62, 63 and 64 which are connected in series so as to constitute a ring counter; FIG. 6 is a timing diagram representing respectively the clock signal sent on each of the flip-flops and their output Q.

Le signal de sortie Q de chacune des bascules commande un transistor 65 qui constitue un interrupteur disposé entre la source de,tension continue et le fil d'alimentation de chaque générateur de signaux périodiques 71, 72, 73 et 74. La sortie de chacun de ces générateurs est envoyée sur le conducteur 36 de la figure 3 en amont des circuits bouchons.The output signal Q of each of the flip-flops controls a transistor 65 which constitutes a switch arranged between the source of DC voltage and the supply wire of each generator of periodic signals 71, 72, 73 and 74. The output of each of these generators is sent to the conductor 36 of Figure 3 upstream of the plug circuits.

Les fréquences des signaux fournis par les générateurs 71 à 74 correspondent respectivement aux fréquences de résonance de chacun des ensembles de circuit résonant 17, 18 du circuit de porte et de circuit bouchon correspondant de l'unité centrale de commande.The frequencies of the signals supplied by the generators 71 to 74 correspond respectively to the resonance frequencies of each of the resonant circuit assemblies 17, 18 of the door circuit and of the corresponding plug circuit of the central control unit.

Le fonctionnement du dipositif qui vient d'être décrit est le suivant. Lorsque l'on introduit la clé de porte dans le verrou 7, cette clé peut prendre les trois positions du commutateur 15. La tension des diodes Zener 14 est choisie de manière à être légèrement inférieure au seuil de basculement des comparateurs 41 à 43 ; ainsi si on choisit une tension Zener légèrement inférieure à 2 Volts, on obtiendra le basculement des comparateurs 41, 42 et 43 lorsqu'une seule des diodes Zener 14 sera connectée par le commutateur 15, le basculement des comparateurs 42 et 43 lorsque deux diodes seront connectées et le basculement du comparateur 43 lorsque les trois diodes Zener 14 seront connectées par le commutateur 15.The operation of the device which has just been described is as follows. When the door key is introduced into the lock 7, this key can take the three positions of the switch 15. The voltage of the Zener diodes 14 is chosen so as to be slightly lower than the switching threshold of the comparators 41 to 43; so if we choose a Zener voltage slightly less than 2 Volts, we will obtain the switching of comparators 41, 42 and 43 when only one of the Zener diodes 14 is connected by the switch 15, the switching of comparators 42 and 43 when two diodes are connected and the switching of comparator 43 when the three Zener diodes 14 are connected by switch 15.

En l'absence de demande par la clé dans la serrure 7, la tension lue par le détecteur 26 est la tension de la batterie qui est envoyée depuis la borne 25 à travers la résistance 10.In the absence of a request by the key in the lock 7, the voltage read by the detector 26 is the voltage of the battery which is sent from the terminal 25 through the resistor 10.

Cette tension étant supérieure au seuil maximal de 6 V, aucun des comparateurs 41 à 43 ne passe de la valeur logique "0" à la valeur logique "1". Aucun ordre n'est envoyé sur les bobines des relais B1, B2 et B3. Si la clé est introduite dans le verrou 7, et qu'on l'actionne dans le sens de "décondamnation", le contact correspond à la mise en série des trois diodes Zener 14 et seul le comparateur 43 fournit un "1" logique à sa sortie, ce qui débloque la porte logique ET 49 qui passe à 1 et qui alerte la bascule 52 qui fournit un ordre d'activation de la bobine du relais B2. Ceci a pour effet d'appliquer la tension positive d'alimentation sur le conducteur 32 du faisceau 8 et, par suite, sur la ligne de commande 12. Le moteur M1 et le moteur M2 par l'intermédiaire de la diode D1 sont alors alimentés dans le sens de la "décondamnation" dans chacune des portes commandées par l'unité centrale de commande.This voltage being higher than the maximum threshold of 6 V, none of the comparators 41 to 43 pass from the logic value "0" to the logic value "1". No order is sent to the coils of relays B1, B2 and B3. If the key is inserted in the lock 7, and that it is actuated in the direction of "unlocking", the contact corresponds to the placing in series of the three Zener diodes 14 and only the comparator 43 provides a logic "1" to its output, which unlocks the logic gate ET 49 which passes at 1 and which alerts the flip-flop 52 which provides an activation order for the coil of relay B2. This has the effect of applying the positive supply voltage to the conductor 32 of the bundle 8 and, consequently, to the control line 12. The motor M1 and the motor M2 via the diode D1 are then supplied in the direction of "unlocking" in each of the doors controlled by the central control unit.

Si l'on actionne la clé de portière dans le sens de la "condamnation", il existe deux positions, la première correspondant à la "condamnation" normale des portes et la deuxième à la "supercondamnation". Ces deux positions peuvent être deux positions successives de la clé ou bien la deuxième position peut correspondre au maintien de la clé dans la position de "condamnation" un temps donné.If the door key is operated in the direction of "locking", there are two positions, the first corresponding to the normal "locking" of the doors and the second to "deadlocking". These two positions can be two successive positions of the key or the second position can correspond to keeping the key in the "locking" position for a given time.

Si l'on actionne la clé de porte pour obtenir la "condamnation", c'est la position correspondant à deux diodes 14 en série qui est obtenue et les deux comparateurs 42 et 43 passent à l'état logique "1" ; l'inverseur 51 bloque la porte ET 49 et seule la porte 46 passe à l'état logique "1", ce qui active la bascule 48 qui commande l'alimentation de la bobine du relais B3. Il en résulte que le moteur M1 est alimenté dans le sens inverse à celui de la "décondamnation". Le moteur M2 n'est pas actionné compte tenu du fait que les deux bornes sont reliées au même potentiel positif de l'alimentation et que D1 s'oppose au passage du courant, vers 32.If the door key is actuated to obtain the "locking", it is the position corresponding to two diodes 14 in series which is obtained and the two comparators 42 and 43 pass to the logic state "1"; the inverter 51 blocks the AND gate 49 and only the gate 46 passes to the logic state "1", which activates the flip-flop 48 which controls the supply of the coil of the relay B3. It follows that the motor M1 is supplied in the opposite direction to that of the "unlocking". The motor M2 is not activated taking into account the fact that the two terminals are connected to the same positive potential of the supply and that D1 opposes the passage of current, towards 32.

Enfin, si la clé passe en position de "supercondamnation", seule la première diode Zener 14 est mise dans le circuit de mesure et les comparateurs 41, 42, 43 passent à l'état logique "1". La sortie du comparateur 41 bloque les portes 46 et 49 par l'intermédiaire des circuits inverseurs 47 et 51. Il en résulte que seule la porte 44 est débloquée ce qui actionne la bascule 45 qui commande l'alimentation de la bobine des relais B1 et B3. Dans ce cas, la tension positive est appliquée sur le conducteur 13, les autres conducteurs étant reliés à la borne négative ; le moteur M1 est actionné dans le sens de la "condamnation" et le moteur M2 est également actionné dans le sens de la "condamnation", l'ensemble formant la "supercondamnation".Finally, if the key goes to the "deadlock" position, only the first Zener diode 14 is put in the measurement circuit and the comparators 41, 42, 43 go to the logic state "1". The output of the comparator 41 blocks the doors 46 and 49 by means of the reversing circuits 47 and 51. This results that only the door 44 is unlocked which actuates the rocker 45 which controls the supply of the coil of the relays B1 and B3. In this case, the positive voltage is applied to the conductor 13, the other conductors being connected to the negative terminal; the motor M1 is actuated in the direction of the "condemnation" and the motor M2 is also actuated in the direction of the "condemnation", the assembly forming the "deadlocking".

Les diodes D1 et D2 permettent d'isoler ou de sélectionner M2 selon les polarités appliquées sur les trois conducteurs, ceci autorisant sa mise au repos lors d'une demande de "condamnation" simple où M1 seul est activé.The diodes D1 and D2 make it possible to isolate or select M2 according to the polarities applied to the three conductors, this authorizing it to be put to rest during a simple "condemnation" request where M1 alone is activated.

Dans le cas de deux demandes de clés simultanées, la tension Zener la plus faible est prioritaire, ce qui détermine une priorité dans le cas de deux demandes de clé différentes simultanées. Dans l'exemple donné, c'est la demande de "supercondamnation" correspondant à la plus faible tension Zener qui est prioritaire sur les autres ordres. Il en est de même pour la commande de "condamnation" qui est prioritaire devant une commande de "décondamnation". Ceci est un choix qui peut être changé à volonté. On s'affranchit de cette manière, ainsi que par des protections sur les bascules monostables de l'émission de deux ordres simultanés différents.In the case of two simultaneous key requests, the lowest Zener voltage has priority, which determines a priority in the case of two different simultaneous key requests. In the example given, it is the request for "deadlock" corresponding to the lowest Zener voltage which has priority over the other orders. It is the same for the command of "condemnation" which has priority before a command of "unlocking". This is a choice that can be changed at will. One frees oneself in this way, as well as by protections on the monostable rockers of the emission of two different simultaneous orders.

Les diodes Zener 14 peuvent être remplacées par d'autres composants électroniques divisant une tension appliquée aux bornes des deux conducteurs. On pourrait par exemple utiliser trois résistances de valeurs différentes branchées en parallèle entre le conducteur 11 et le contact mobile du commutateur 15, chaque résistance formant un pont diviseur de tension avec la résistance 10, les extrémités libres des résistances constituant trois plots de contact du commutateur.The Zener diodes 14 can be replaced by other electronic components dividing a voltage applied across the two conductors. One could for example use three resistors of different values connected in parallel between the conductor 11 and the movable contact of the switch 15, each resistor forming a voltage divider bridge with the resistor 10, the free ends of the resistors constituting three contact pads of the switch .

Le microprocesseur 20 peut également être commandé par la télécommande schématisée par le contact 35 qui fournit une information de "décondamnation" ou de "condamnation" au microprocesseur 20.The microprocessor 20 can also be controlled by the remote control shown diagrammatically by the contact 35 which provides "unlocking" or "condemnation" information to the microprocessor 20.

Le dispositif selon l'invention comprend aussi un dispositif anti-agression schématisé par le contact 34 qui est actionné par l'occupant du véhicule lorsqu'il se trouve à l'intérieur de celui-ci et qui transmet également une information d'ordre de "condamnation" au microprocesseur 20.The device according to the invention also comprises an anti-aggression device shown diagrammatically by the contact 34 which is actuated by the occupant of the vehicle when he is inside it and which also transmits order information. "condemnation" to the microprocessor 20.

Le microprocesseur 20 reçoit également une information relative à la clé de contact du véhicule (contact 30). L'information fournie par l'actionnement de la clé de contact du véhicule autorise l'actionnement du dispositif anti-agression et inhibe la télécommande. Par ailleurs, l'actionnement de la clé de contact du véhicule commande la procédure de surveillance des contacts de portières en activant le générateur 28 quine fonctionne donc que lorsque la clé de contact est en position active. Dans cette position, on supprime la tension continue positive appliquée sur le conducteur de commande 21 qui est soumis alors aux signaux périodiques fournis par le générateur 28.The microprocessor 20 also receives information relating to the vehicle ignition key (contact 30). The information provided by actuation of the vehicle ignition key authorizes actuation of the anti-aggression device and inhibits the remote control. Furthermore, actuation of the vehicle ignition key controls the procedure for monitoring the door contacts by activating the generator 28 quine therefore only works when the ignition key is in the active position. In this position, the positive DC voltage applied to the control conductor 21 which is then subjected to the periodic signals supplied by the generator 28 is eliminated.

Dans le cas où un ordre de "condamnation" ou de "décondamnation" des portières est émis pendant cette surveillance, par actionnement du dispositif anti-agression, la surveillance est interrompue pendant un court instant par le microprocesseur 20 de manière à honorer la commande.In the case where an order to "lock" or "unlock" the doors is issued during this monitoring, by actuation of the anti-aggression device, monitoring is interrupted for a short time by the microprocessor 20 so as to honor the order.

La surveillance de l'état de fermeture des portières s'effectue en utilisant deux conducteurs seulement, à savoir les conducteurs 31-32.The door closing status is monitored using only two conductors, namely conductors 31-32.

Comme on peut le voir en se référant aux figures 5 et 6, le générateur fournit une série d'impulsions de fréquences différentes qui correspondent respectivement aux fréquences de résonance des paires de circuit résonant-circuit bouchon de l'unité centrale de commande et de chaque portière.As can be seen with reference to FIGS. 5 and 6, the generator supplies a series of pulses of different frequencies which correspond respectively to the resonant frequencies of the pairs of resonant circuit-plug circuit of the central control unit and of each door.

Si l'un des contacts de portière 19 est fermé, le courant circule par les deux conducteurs 11 et 12, il y a une baisse d'impédance du circuit résonant à la fréquence de résonance de la porte considérée, et il en résulte que la tension aux bornes du circuit bouchon correspondant de l'unité centrale de commande prend une valeur élevée, ce qui actionne l'alarme constituée par exemple par le voyant 29 qui clignote selon la fréquence cyclique du générateur 28.If one of the door contacts 19 is closed, the current flows through the two conductors 11 and 12, there is a drop in impedance of the resonant circuit at the resonance frequency of the door considered, and it follows that the voltage across the corresponding plug circuit of the central control unit takes a high value, which activates the alarm constituted for example by the light 29 which flashes according to the cyclic frequency of the generator 28.

Selon une variante de l'invention, le générateur 28 fournit une tension complexe de plusieurs tensions égales dont les fréquences correspondent aux fréquences des circuits résonants. On peut dans ce cas utiliser un circuit sommateur pour envoyer l'ensemble des fréquences sur le conducteur 11. Dans ce cas les quatre générateurs de signaux sont continuellement alimentés, on n'utilise plus le compteur en anneau.According to a variant of the invention, the generator 28 supplies a complex voltage of several equal voltages whose frequencies correspond to the frequencies of the resonant circuits. In this case, it is possible to use a summing circuit to send the set of frequencies to the conductor 11. In this case the four signal generators are continuously supplied, the ring counter is no longer used.

On peut constater que lorsque le véhicule est à l'arrêt (contact non mis), une tension positive est appliquée sur le conducteur de commande 11, 21, 31 et que même si une portière est mal fermée, un contact 19 fermé, il ne circulera aucun courant dans les deux conducteurs de commande 11 et 12 car le condensateur du circuit résonant de la portière mal fermée constitue un interrupteur en courant continu.It can be seen that when the vehicle is stopped (contact not put), a positive voltage is applied to the control conductor 11, 21, 31 and that even if a door is not closed properly, a contact 19 closed, it does not no current will flow in the two control conductors 11 and 12 because the capacitor of the resonant circuit of the improperly closed door constitutes a dc switch.

Selon une autre variante de l'invention, on prévoit seulement dans l'unité centrale de commande un générateur à une seule fréquence et, dans chaque porte, le circuit résonant série est remplacé par un vibreur fonctionnant à la fréquence fournie par le générateur de l'unité centrale de commande.According to another variant of the invention, only a generator with a single frequency is provided in the central control unit and, in each door, the series resonant circuit is replaced by a vibrator operating at the frequency supplied by the generator of the central control unit.

Cette variante permet de limiter l'encombrement du tableau de bord par de nombreux voyants. On peut cependant prévoir un seul voyant constituant une alarme permanente alors que le fonctionnement du vibreur est temporisé et que le signal sonore s'arrête après un certain temps.This variant makes it possible to limit the size of the dashboard by numerous indicators. It is however possible to provide a single indicator constituting a permanent alarm while the operation of the buzzer is delayed and the audible signal stops after a certain time.

Pour éviter la consommation de courant lorsque le contact n'est pas mis et que l'on envoie une tension continue positive sur le premier conducteur de commande 11, on peut disposer un condensateur en série avec chacun des vibreurs. L'indicateur de porte mal fermée étant dans la porte elle même, l'attention des occupants est attirée beaucoup plus vite surtout lorsqu'il s'agit de portes arrière.To avoid current consumption when the ignition is not on and a positive DC voltage is sent to the first control conductor 11, a capacitor can be arranged in series with each of the vibrators. As the door is not closed properly, the door occupant's attention is drawn much faster, especially when it comes to rear doors.

Selon une autre variante de l'invention, on supprime les circuits bouchons, et le générateur 28 envoie en permanence de manière cyclique des trains d'ondes périodiques de fréquences différentes. Ces signaux traversent une résistance située en série avec le générateur 28 dans l'unité centrale. Avec l'impédance que présentent les circuits résonants, cette résistance joue un rôle de pont diviseur de tension : à sa borne attenante au conducteur 21, on regarde l'amplitude de chacun des signaux la traversant. En l'absence de portière mal fermée, l'amplitude du signal à la borne citée est celle du signal émis par le générateur 28. Dès lors qu'un contact de portière 19 se ferme, cette amplitude tombe comme un pont diviseur de tension pour le signal à la fréquence de résonance de la porte mal fermée. Une alarme est déclenchée dès lors qu'on décèle cette variation d'amplitude en tension. Puisque tout signal à une fréquence donnée est émis périodiquement pendant 1/4 de période du fait de l'alimentation du système par le compteur en anneau (voir fig.5), on sait sait précisément en cas de chute de tension de quelle porte il s'agit puisqu'une porte est sensible à sa fréquence propre et non aux autres fréquences émises pour les autres portes durant les 3/4 de période restant. La période test divisée en autant de portions qu'il y a de portes à surveiller (ici 4 dans l'exemple donné).According to another variant of the invention, the plug circuits are eliminated, and the generator 28 permanently sends cyclic trains of periodic waves of different frequencies. These signals pass through a resistor located in series with the generator 28 in the central unit. With the impedance presented by the resonant circuits, this resistor acts as a voltage divider bridge: at its terminal adjoining the conductor 21, we look at the amplitude of each of the signals passing through it. In the absence of a door which is not closed properly, the amplitude of the signal at the cited terminal is that of the signal emitted by the generator 28. As soon as a door contact 19 closes, this amplitude falls like a voltage divider bridge for the signal at the resonant frequency of the door not closed properly. An alarm is triggered as soon as this variation in voltage amplitude is detected. Since any signal at a given frequency is emitted periodically for 1/4 of a period due to the supply of the system by the ring counter (see fig. 5), we know precisely in the event of a voltage drop which door is involved since a door is sensitive to its natural frequency and not to the other frequencies emitted for the other doors during the 3 / 4 of the remaining period. The test period divided into as many portions as there are doors to monitor (here 4 in the example given).

Selon une autre variante de l'invention, il est également possible de disposer la série de circuits bouchons en parallèle entre les deux conducteurs 21 et 22 dans l'unité centrale, c'est-à-dire entre la sortie 36 du générateur relié au conducteur 21, et la polarité moins de la batterie reliée au conducteur 22. Le générateur 28 envoie en permanence de manière cyclique les trains d'ondes périodiques aux différentes fréquences, à travers une résistance. A réception de sa fréquence propre chaque circuit bouchon présente une impédance élevée. Dès lors que le contact de portière 19 du circuit résonant correspondant est fermé, l'impédance aux bornes dudit circuit bouchon chute, il en va de même pour la tension à ses bornes. Une alarme est déclenchée dès lors qu'on décèle cette chute de tension.According to another variant of the invention, it is also possible to arrange the series of plug circuits in parallel between the two conductors 21 and 22 in the central unit, that is to say between the output 36 of the generator connected to the conductor 21, and the minus polarity of the battery connected to conductor 22. The generator 28 permanently sends cyclically the periodic wave trains at the different frequencies, through a resistor. On reception of its own frequency each plug circuit has a high impedance. As soon as the door contact 19 of the corresponding resonant circuit is closed, the impedance across the terminals of said plug circuit drops, the same goes for the voltage across its terminals. An alarm is triggered as soon as this voltage drop is detected.

On voit que l'invention permet, en utilisant seulement trois conducteurs de liaison faisant bus entre l'unité centrale de commande et chacun des ouvrants, de commander de manière centralisée l'ouverture, la "condamnation" et même une "supercondamnation" des portes et d'envoyer à partir de chacune des portes, les ordres nécessaires fournis par la clé de porte.It can be seen that the invention makes it possible, by using only three connecting conductors forming a bus between the central control unit and each of the opening elements, to centrally control the opening, "locking" and even a "deadlocking" of the doors. and send from each of the doors, the necessary orders supplied by the door key.

Un autre avantage de l'invention réside dans le fait que seuls des éléments passifs sont logés dans les portes ce qui est important du point de vue du coût et de la fiabilité.Another advantage of the invention lies in the fact that only passive elements are housed in the doors, which is important from the point of view of cost and reliability.

Par ailleurs, deux de ces conducteurs suffisent pour effectuer la surveillance de l'état de fermeture de tous les ouvrants avec indication à chaque fois de la porte mal fermée.In addition, two of these conductors are sufficient to carry out monitoring of the closing state of all the opening elements, with indication each time. from the door that was not closed properly.

L'invention s'applique également aux ouvrants comportant un actionneur à double effet tels que des ouvrants sans "supercondamnation" (coffre à bagages, trappe à essence,...). Dans ce cas, si l'actionneur est un moteur réversible, il sera branché en permanence entre deux conducteurs.The invention also applies to opening elements comprising a double-acting actuator such as opening elements without "deadlocking" (luggage compartment, petrol door, etc.). In this case, if the actuator is a reversible motor, it will be permanently connected between two conductors.

Claims (9)

Dispositif de commande centralisée des ouvrants (2, 3, 4) d'un véhicule automobile, dans lequel les ouvrants comportent un actionneur électrique à triple effet (M1, M2), comportant au moins un moteur électrique, et certains ouvrants comportent un dispositif de commande mécanique à clé de serrure (7) fournissant des ordres à une unité centrale de commande (1) recevant par ailleurs des ordres provenant en particulier de la clé de contact (5) et/ou d'un appareil de commande à distance (6), et/ou d'un bouton anti-agression caractérisé en ce que l'unité centrale de commande (1) est reliée à chacun des ouvrants (2, 3, 4) par une ligne unique (8) à trois conducteurs (31, 32, 33) utilisés tantôt en transfert de puissance, tantôt, pour au moins deux d'entre eux, en transfert d'informations, en ce que dans chaque ouvrant (2, 3, 4), l'actionneur (M1, M2) est branché en permanence entre les trois conducteurs de ladite ligne (8) et en ce que l'unité centrale de commande (1) comporte des moyens (20, 26, B1, B2, B3) pour appliquer sélectivement sur chacun desdits conducteurs (31, 32, 33) les tensions nécessaires à l'exécution d'une séquence.Centralized control device for the openings (2, 3, 4) of a motor vehicle, in which the openings comprise an electric actuator with triple effect (M1, M2), comprising at least one electric motor, and certain openings include a device for mechanical control with a lock key (7) supplying orders to a central control unit (1) also receiving orders originating in particular from the ignition key (5) and / or from a remote control device (6 ), and / or an anti-aggression button characterized in that the central control unit (1) is connected to each of the openings (2, 3, 4) by a single line (8) with three conductors (31 , 32, 33) sometimes used for power transfer, sometimes for at least two of them, for information transfer, in that in each opening (2, 3, 4), the actuator (M1, M2 ) is permanently connected between the three conductors of said line (8) and in that the central control unit (1) c includes means (20, 26, B1, B2, B3) for selectively applying to each of said conductors (31, 32, 33) the voltages necessary for the execution of a sequence. Dispositif de commande centralisée selon la revendication 1, caractérisé en ce que dans les ouvrants (2) comportant une commande mécanique à clé de serrure (7), une série de composants électroniques passifs (14) de fixation de niveau de tension est branchée sur un premier conducteur (11), en ce que, pour chaque position de ladite clé, un contact est établi entre un deuxième conducteur (12) et un des composants précités (14), en ce qu'une tension continue est appliquée entre les deux conducteurs (11, 12) par l'intermédiaire d'une résistance (10) et en ce que l'unité centrale comporte un détecteur de niveau de tension (26) qui fournit des signaux de commande aux moyens (B1, B2, B3) pour appliquer une polarité sur les conducteurs (31, 32, 33).Centralized control device according to claim 1, characterized in that in the openings (2) comprising a mechanical control with key lock (7), a series of passive electronic components (14) for fixing the voltage level is connected to a first conductor (11), in that, for each position of said key, contact is established between a second conductor (12) and one of the aforementioned components (14), in that a direct voltage is applied between the two conductors (11, 12) via a resistor (10) and in that the central unit comprises a voltage level detector (26) which supplies control signals to the means (B1, B2, B3) for apply polarity on the conductors (31, 32, 33). Dispositif de commande centralisée selon la revendication 2, caractérisé en ce que l'actionneur comporte un premier moteur (M1) branché entre deux conducteurs (12, 13) de la ligne (8) et un second moteur (M2) branché directement sur l'un desdits deux conducteurs (13) et branché sur l'autre de ces conducteurs (12), en ce qu-une première diode (D1) dont la cathode est branchée directement sur ledit second moteur sépare les bornes arrivantes des deux moteurs sur ledit autre conducteur (12) et en ce qu'une deuxième diode (D2) est branchée entre la borne du second moteur (M2) reliée audit autre conducteur (13) et le troisième conducteur (11) de la ligne (8), l'anode de cette deuxième diode étant reliée au second moteur (M2).Centralized control device according to claim 2, characterized in that the actuator comprises a first motor (M1) connected between two conductors (12, 13) of the line (8) and a second motor (M2) connected directly to the one of said two conductors (13) and connected to the other of these conductors (12), in that a first diode (D1) whose cathode is connected directly to said second motor separates the incoming terminals of the two motors on said other conductor (12) and in that a second diode (D2) is connected between the terminal of the second motor (M2) connected to said other conductor (13) and the third conductor (11) of the line (8), the anode of this second diode being connected to the second motor (M2). Dispositif de commande centralisée selon l'une quelconque des revendications 1 à 3, caractérisé en ce que, dans l'unité de commande centralisée (1), les moyens pour appliquer une polarité sur les trois conducteurs sont constitués par des relais (B1, B2, B3) dont la position de repos correspond à une polarité positive sur l'un des conducteurs (11) et à une polarité négative sur les deux autres conducteurs (12, 13).Centralized control device according to any one of claims 1 to 3, characterized in that, in the centralized control unit (1), the means for applying polarity to the three conductors are constituted by relays (B1, B2 , B3) whose rest position corresponds to a positive polarity on one of the conductors (11) and to a negative polarity on the other two conductors (12, 13). Dispositif de commande centralisée selon l'une quelconque des revendications 2 à 4, caractérisé en ce que le signal fourni par le détecteur (26) est envoyé sur un microprocesseur (20) qui commande les moyens (B1, B2, B3) d'application d'une polarité et qui reçoit un signal de la clé de contact (5,30), de l'appareil de commande à distance (6,35) ou d'une commande "anti-agression" (34).Centralized control device according to any one of Claims 2 to 4, characterized in that the signal supplied by the detector (26) is sent to a microprocessor (20) which controls the means (B1, B2, B3) of application polarity and which receives a signal from the ignition key (5.30), the remote control device (6.35) or an "anti-aggression" command (34). Dispositif de commande centralisée selon l'une quelconque des revendications 2 à 5, caractérisé en ce que les composants électriques de fixation de niveau de tension sont des diodes Zener (14) branchées en série.Centralized control device according to any one of claims 2 to 5, characterized in that the electrical components for fixing voltage level are Zener diodes (14) connected in series. Dispositif de commande centralisée selon l'une quelconque des revendications 2 à 6, caractérisé en ce que l'unité centrale de commande (1) comporte des comparateurs (41-43) recevant, d'une part, la tension fournie par l'actionnement de la clé de serrure (7) et, d'autre part, une tension de référence, la sortie de chaque comparateur (41-43) est envoyée sur un circuit de logique qui interprète la demande de clé commandant une bascule monostable (45, 48, 52) d'actionnement des moyens (B1, B2, B3) d'application de polarité aux trois conducteurs (31, 32, 33).Centralized control device according to any one of claims 2 to 6, characterized in that the central control unit (1) comprises comparators (41-43) receiving, on the one hand, the voltage supplied by the actuation of the lock key (7) and, on the other hand, a reference voltage, the output of each comparator (41-43) is sent to a logic circuit which interprets the request for the key controlling a monostable flip-flop (45, 48, 52) for actuating the means (B1, B2, B3) for applying polarity to the three conductors (31, 32, 33). Dispositif de commande centralisée selon la revendication 7, caractérisé en ce que l'on prévoit un circuit de priorité (44, 45, 46, 47, 51, 48, 49, 52) permettant de déterminer une priorité entre les différents ordres de commande des ouvrants (2-4).Centralized control device according to claim 7, characterized in that a priority circuit (44, 45, 46, 47, 51, 48, 49, 52) is provided for determining a priority between the different control commands of the opening (2-4). Dispositif de commande centralisée selon la revendication 8, caractérisé en ce que ledit circuit est constitué par des circuits logiques ET (44, 46, 49) et des inverseurs (47, 51) branchés entre les comparateurs (41-43) et les bascules (45, 48, 52).Centralized control device according to claim 8, characterized in that said circuit is constituted by AND logic circuits (44, 46, 49) and inverters (47, 51) connected between the comparators (41-43) and the flip-flops ( 45, 48, 52).
EP91401288A 1990-06-05 1991-05-17 Central locking device for car doors Expired - Lifetime EP0460986B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9006935A FR2662736B1 (en) 1990-06-05 1990-06-05 DEVICE FOR CENTRALIZED CONTROL OF OPENING ELEMENTS OF A MOTOR VEHICLE.
FR9006935 1990-06-05

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EP0460986A1 true EP0460986A1 (en) 1991-12-11
EP0460986B1 EP0460986B1 (en) 1994-08-24

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EP (1) EP0460986B1 (en)
JP (1) JPH04231574A (en)
BR (1) BR9102242A (en)
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DE (1) DE69103580T2 (en)
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FR (1) FR2662736B1 (en)

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FR2715184A1 (en) * 1994-01-14 1995-07-21 Bru Henri Pierre Gaetan Child safety lock device applied to individual doors on motor vehicle
FR2718182A1 (en) * 1994-03-31 1995-10-06 Rockwell Bcs France Motor vehicle front door lock and set of locks for the front and rear doors and their electronic centralized control system.
FR2723129A1 (en) * 1994-07-30 1996-02-02 Kiekert Ag Central locking system for car
WO1997028338A1 (en) * 1996-01-29 1997-08-07 John Phillip Chevalier Electronic central locking system
EP2570573A3 (en) * 2011-09-19 2016-03-16 Brose Schliesssysteme GmbH & Co. KG Motor vehicle lock

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Publication number Priority date Publication date Assignee Title
DE4205271C1 (en) * 1992-02-21 1993-01-14 Mercedes-Benz Aktiengesellschaft, 7000 Stuttgart, De Control circuit for central locking installation - uses switch to change potential to change state of control switch for remote operation of motor vehicle doors or boot
WO1994019218A1 (en) * 1993-02-16 1994-09-01 Jan Zikl Circuit arrangement of a safety system
FR2715184A1 (en) * 1994-01-14 1995-07-21 Bru Henri Pierre Gaetan Child safety lock device applied to individual doors on motor vehicle
FR2718182A1 (en) * 1994-03-31 1995-10-06 Rockwell Bcs France Motor vehicle front door lock and set of locks for the front and rear doors and their electronic centralized control system.
FR2723129A1 (en) * 1994-07-30 1996-02-02 Kiekert Ag Central locking system for car
WO1997028338A1 (en) * 1996-01-29 1997-08-07 John Phillip Chevalier Electronic central locking system
EP2570573A3 (en) * 2011-09-19 2016-03-16 Brose Schliesssysteme GmbH & Co. KG Motor vehicle lock
EP2570573B1 (en) 2011-09-19 2017-08-23 Brose Schliesssysteme GmbH & Co. KG Motor vehicle lock

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CA2043432A1 (en) 1991-12-06
BR9102242A (en) 1992-01-07
US5248898A (en) 1993-09-28
ES2063459T3 (en) 1995-01-01
DE69103580T2 (en) 1994-12-22
DE69103580D1 (en) 1994-09-29
EP0460986B1 (en) 1994-08-24
FR2662736A1 (en) 1991-12-06
JPH04231574A (en) 1992-08-20
FR2662736B1 (en) 1992-10-30

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