DE60207922T2 - Control system for a motor vehicle door lock - Google Patents

Description

The The present invention relates to a control system for a motor vehicle door lock according to the preamble of Patent claim 1.

One Such a system is described in document EP-A-1083284.

medium for identification of a user are provided in particular in a "free-hand" system, especially to manage access to a motor vehicle. One such system includes in general, to be worn by the user to be identified Organ (the organ to be identified is usually to a chip card), which over electromagnetic waves (radio waves or infrared rays) with communicating means arranged on the vehicle for identification. The electronic communicating with the means of identification Control means issue a clearance to open the vehicle door when a corresponding user is identified.

traditionally, is a lock module the Motor vehicle door arranged in a cassette forming the inner region of the door. With the door closed can the lock with Help different agents are opened or locked, the from the outside or Interior of the vehicle accessible are.

One lock module the front door usually contains two actuators for opening the Door from Outside and inside, connected with two door handles which are corresponding to the exterior and Interior of the vehicle accessible are, and two organs to lock the door from the outside and inside, with one Castle and a locking button are connected, each of the exterior and Interior of the vehicle accessible are.

In a lock module the rear door is the outer locking member generally connected to a "child safety" button on the narrow side of the door is arranged.

One Control system for a motor vehicle lock is able to perform different functions, especially from the Type of lock module dependent are. In certain types of lock modules allows the activity of the inner door handle at the same time unlocking and opening the door. This feature is usually as "over ride ".

It also exist control systems for a lock, which make it possible an anti-theft device of the doors to realize. The activation of means for theft prevention make any action ineffective, of course, on the inner and outer door handles as well as the locking button, if available. A Theft-proof door consequently, neither of the exterior nor opened from the interior of the vehicle become.

Of the Invention has for its object to propose a control system for a castle, which provided with means to ensure a "free-hand" function, in a simple way to a conventional one lock module is adaptable, this control system also allows additional functions, such as a child safety device or an anti-theft device with which the conventional lock module is equipped.

To For this purpose, the invention has a control system for a motor vehicle door lock according to claim 1 to the object.

• – umfaßt das System einen am Ende des Totganges angeordneten versenkbaren Anschlag, der mit dem äußeren Türgriff zusammenwirkt und durch ein externes Schloß der zu öffnenden Einrichtung und durch zweite elektrische Betätigungsmittel betätigbar ist, welche durch die Zentraleinheit steuerbar sind;
• – ist der am Ende des Totganges angeordnete Anschlag ebenfalls durch einen inneren Verriegelungsknopf der zu öffnenden Einrichtung betätigbar;
• – ist der am Ende des Totganges angeordnete Anschlag mit dem inneren Verriegelungsknopf über entkuppelbare Koppelmittel verbunden, die durch dritte elektrische Betätigungsmittel betätigbar sind, welche durch die Zentraleinheit steuerbar sind;
• – umfaßt das System außerdem erste und zweite Abstützorgane, die jeweils mit dem Innenbetätigungshebel zum Öffnen und dem inneren Türgriff verbunden sind und sich gegenseitig abstützend miteinander zusammenwirken, um den Innenbetätigungshebel zum Öffnen und den inneren Türgriff zu koppeln, wenn der innere Türgriff von seiner Ruheposition in Richtung auf seine Öffnungsposition verlagert wird;
• – umfaßt das System erste versenkbare Mittel des ersten Abstützorganes, die, wenn sie aktiviert sind, die Kopplung des ersten und zweiten Abstützorganes bei der Verlagerung des internen Türgriffes von seiner Ruheposition in seine die zu öffnende Einrichtung öffnende Position verhindern, wobei diese ersten versenkbaren Mittel vorzugsweise Mittel zur Diebstahlsicherung oder zur Kindersicherung der zu öffnenden Einrichtung bilden;
• – sind die ersten versenkbaren Mittel durch vierte elektrische Betätigungsmittel betätigbar, welche durch die Zentraleinheit steuerbar sind;
• – sind die ersten versenkbaren Mittel durch mechanische Mittel betätigbar, die mit einem an der Schmalseite der zu öffnenden Einrichtung angeordneten Organ zur Betätigung der Kindersicherung verbunden ist;
• – sind die ersten versenkbaren Mittel durch mit dem äußeren Schloß verbundene mechanischen Mittel betätigbar;
• – umfaßt das System zweite versenkbare Mittel des zweiten Abstützorganes, die, wenn sie aktiviert sind, die Kopplung des ersten und zweiten Abstützorganes bei der Verlagerung des inneren Türgriffes von seiner Ruheposition in Richtung auf seine die zu öffnende Einrichtung öffnende Position verhindern, wobei diese zweiten versenkbaren Mittel vorzugsweise Mittel zum Verriegeln der zu öffnenden Einrichtung bilden;
• – sind die zweiten versenkbaren Mittel durch fünfte elektrische Betätigungsmittel betätigbar, welche durch die Zentraleinheit und den inneren Verriegelungsknopf steuerbar sind.

According to further features of this system:

• The system comprises a retractable stop arranged at the end of the lost motion cooperating with the outer door handle and operable by an external lock of the means to be opened and by second electrical actuation means controllable by the central unit;
• - The arranged at the end of the backlash stop is also actuated by an inner locking knob of the openable device;
• - The arranged at the end of the backlash stop is connected to the inner lock button via uncoupled coupling means which are actuated by third electrical actuating means which are controllable by the central unit;
• The system further comprises first and second support members respectively associated with the inner opening and inner door handle operatively cooperating with each other to couple the inner operating lever for opening and the inner door handle when the inner door handle is in its rest position Direction is shifted to its opening position;
• The system comprises first retractable means of the first support member which, when activated, prevent the coupling of the first and second support members in displacing the internal door handle from its rest position to its opening position, preferably the first retractable means Form the means for theft or parental control of the openable device;
• - The first retractable means are actuated by fourth electrical actuating means which are controllable by the central unit;
• - The first retractable means are actuated by mechanical means which is connected to a arranged on the narrow side of the openable device for actuating the child safety device;
• - The first retractable means are actuated by connected to the outer lock mechanical means;
• The system comprises second retractable means of the second support member which, when activated, prevent the coupling of the first and second support members in displacing the inner door handle from its rest position towards its opening position, the latter being retractable Means preferably forming means for locking the device to be opened;
• - The second retractable means are actuated by fifth electrical actuating means which are controllable by the central unit and the inner lock button.

The Invention will be better understood while reading the following, merely embodiments reproducing Description relating to the attached drawings. It demonstrate:

the 1 and 2 schematic views of a control system for a motor vehicle door lock according to three corresponding inventive embodiments;

3 Fig. 12 is a schematic view of a control system for a motor vehicle door lock which does not form part of the claimed invention;

4 a section of the means for a child safety, which can be used in at least one embodiment of the control system shown in the preceding figures.

In 1 is a first embodiment of a control system according to the invention 10 illustrated for a motor vehicle door lock.

at the different compounds described below Actuators is an organ called "near" when it is located near the end of the user operable timing chain and as "removed" if it is from located at this end.

In 1 is a conventional lock module 12 arranged in a conventional manner in a cassette forming part of the door. In the example shown, the lock module 12 designed to equip a front door and includes four levers 14 . 16 . 18 . 20 forming organs operable from a distance and carried by a common support of the module. The four levers each form two distant organs 14 . 16 for opening operation of the outside and inside of the door and two remote organs 18 . 20 for locking / unlocking operation from the outside and inside of the door.

The control system 10 also includes two pivotally mounted on the door handles 22 . 24 , which are accessible from the exterior and interior of the vehicle, a crank 26 non-rotatably connected to a rotor of the conventional lock (not shown) and fixed to the door so as to be accessible from the exterior of the vehicle, and a lock button fixed to the door in such a manner 28 which is accessible from the interior of the vehicle. The outer and inner door handle 22 and 24 each form two close organs for opening operation of the outside and inside. The crank 26 of the lock and the lock button each form two close organs for locking / unlocking the door from the outside and inside.

In certain control configurations, the external and internal door handles 22 and 24 each with external and internal operating levers 14 . 16 for opening by means of means which will be described below coupled. The crank 26 of the lock and the lock button 28 are each over conventional linkage 30 . 32 with external and internal levers 18 . 20 connected for locking / unlocking.

The control system 10 is controllable by electronic means, in particular a central unit arranged in the vehicle 34 Comprising an internal conventional electronic circuit of a lock module 12 via a connecting part 36 connected is.

The central unit 34 is by conventional means 37 for identifying a user, by means of electromagnetic waves (radio waves or infrared rays) with an organ to be identified 38 communicate, which is intended to be worn by this user. According to a conventional function, the means for identification issue 37 a release to open the door when a user has been identified accordingly.

The outer door handle 22 is displaceable from a rest position to an open position of the door, following a path which successively includes a first path C1 designated as backlash, in the course of which the outer door handle 22 from the outside operating lever 14 is decoupled for opening, and includes a second path C2, in the course of which the external door handle 22 with the outside operating lever 14 to open with the help of a conventional Ge stänges 39 connected is. One removes the 1 in that the door handle 22 in the rest position with a solid line and in the two consecutive positions at the end of the routes C1 and C2 shown in broken lines The means of identification 37 are activated in the course of the backlash C1, for example by a conventional electrical switch 40 , caused by the displacement of the outer door handle 22 is pressed.

The displaceable between the rest position and the open position of the door inner door handle 24 is with the inside operating lever 16 for opening by the cooperating first and second organs 42 . 44 , which are supported against each other, connected. Consequently, if the inner door handle 24 moved from its rest position to its open position, the first acts, a conventional linkage 46 with the inside operating lever 16 connected support member 42 with the second, with the inner door handle 24 connected support member 44 together, to the latter with the inside lever 16 to open for coupling.

A first electrical actuator 48 is with the first support member 42 connected. This first, the electric drive means of the inside actuating lever 16 for opening forming actuator 48 is through the central unit 34 controlled. When a release to open the device to be opened by the means 37 for identification, the actuator becomes 48 through the central unit 34 energized to the inside operating lever 16 to shift so that the two support organs 42 . 44 be separated from each other.

To limit the lost motion C1, the control system includes 10 for example, a slider that makes a stop 50 forms at the end of the backlash.

This stop 50 is displaceable between a position of cooperation with the outer door handle 22 like this with a full stroke in 1 is shown, and a shifted position for release of the second path C2, as this in dotted lines in 1 is shown.

The crank 26 of the lock and a second electric actuator 52 are with the stop 50 via conventional means 54 . 56 connected. The crank 26 forms the mechanical means for actuating the stop 50 while the second actuator 52 the electrical means for controlling this by the central unit 34 controllable stop 50 forms.

The two actuators 48 . 50 are with the central unit 34 for example via the connecting part 36 and the internal electronic circuit of the lock module 12 connected.

Below are the basic aspects of the operation of the control system 10 for a first embodiment of the invention described. In this first embodiment, the lock module 12 provided with an "over ride" function, ie, that the operation of the inner door handle 24 simultaneously unlocking and opening the door allows.

Under normal conditions, the function of the control system 10 from the central unit 34 managed in accordance with a "free-hand" system 34 executes the per se known instruction for locking or unlocking the door as a function of the information provided by the means 37 for identification of the user or, likewise, by a remote control carried by the user.

Normal business. Business as usual

The central unit controls to execute an instruction to lock the door 34 on the one hand an electric actuator for locking / unlocking (not shown), which conventionally in the lock module 12 is disposed so as to be on the inside operating lever 20 acts to lock in the sense of a lock, and controls on the other hand, the second actuator 52 such that the stop 50 in his the way of the outer door handle 22 limiting position of the first lost motion C1 is moved. The operation of this handle 22 by an unauthorized individual is therefore without effect on the outside operating lever 14 to open. The door is therefore locked.

To execute an instruction for unlocking the door, the central unit on the one hand controls the in the lock module 12 arranged electrical actuator for locking / unlocking, which on the inside operating lever 20 for locking / unlocking acts in the sense of unlocking, and controls on the other hand, the second actuator 52 such that the stop 50 in his the second way C2 of the outer door handle 22 releasing position is inserted. The operation of this handle 22 by a user until the end of the second path C2 causes a coupling of the handle 22 with the outside operating lever 14 to open and consequently the opening of the door.

Under normal operating conditions of the control system 10 the door is opened from the outside of the vehicle in the following manner.

Considering the usual case of an initially locked door. The stop 50 is thus in his the way of the outer door handle 22 limiting position in the backlash C1. The one organ to be identified 38 Carrying user takes this grip 22 and actuates it from its rest position towards its open position such that it passes through the path C1. This has the effect that the switch 40 operated and the means of identification 37 to be activated. As soon as a release for opening is detected, the central unit controls 34 the first actuator 48 for actuating the inside operating lever 16 to open. The unlocking and the opening of the door are then carried out by the "over ride" function It should be noted that the opening of the door without displacement of the stop 50 is effected.

Under normal operating conditions, generally none of the phases for identifying the user and for unlocking (operation of the lever 16 for opening from inside) 55 ms, so that in general the duration between the original gripping the outer door handle 22 by the user and unlocking the door 110 ms does not exceed. Consequently, in the majority of cases one avoids the handle 22 gripping users firmly tighten the latter at the end of backlash C1 before unlocking the door (the handle 22 against the attack 50 presses), which lets the user suspect its actuation of the handle 22 is ineffective.

auxiliary operation

In case of a malfunction (malfunction of the battery, vehicle accident, etc.), the central unit performs 34 an instruction to unlock the door when it is locked. The user can then unlock the door from the outside of the vehicle by holding the crank 26 of the lock operated by means of a key. This causes on the one hand the operation of the external operating lever 18 for locking / unlocking and on the other hand, the displacement of the stop 50 in its retracted position at which the second path C2 is released. The door is unlocked. The user can also unlock the door from inside the vehicle by pressing the lock button 28 or the inner door handle 24 actuated, wherein the unlocking of the door in the latter case by the "over ride" function is effected.

When the door is unlocked, it will open from the outside of the vehicle by operating the outer door handle 22 effected until the end of the second path C2.

In the 2 and 3 are each a second and third embodiment of a control system according to the invention 10 illustrated for a motor vehicle door lock.

In these figures are the the 1 corresponding analogous elements provided with identical reference numerals.

The control system 10 according to the second embodiment of the invention ( 2 ) comprises first retractable means 58 of the first supporting organ 42 which, when activated, couple the first and second support members 42 . 44 to prevent it from its rest position into its open position of the door upon actuation of the inner door handle.

The first retractable means 58 are actuated by third electrical means, preferably a third electric actuator 60 include. The latter is for example via the connecting part 36 and the electronic circuit inside the lock module 12 with the central unit 34 connected and through this central unit 34 remote controlled.

The first retractable means 58 are also through the crank 26 the lock operated by conventional mechanical means, such as a Bowden cable 62 , are connected.

Advantageously, the first retractable means 58 the implementation of one of the central unit 34 effected instruction for theft prevention of the door.

• – den in dem Schloßmodul 12 angeordneten elektrischen Aktuator zur Verriegelung/Entriegelung derart, daß er auf den Innenbetätigungshebel 20 zur Verriegelung im Sinne einer Verriegelung einwirkt,
• – den zweiten Aktuator 52 derart, daß er den Anschlag 50 in seine Position verschiebt, bei der dieser den Weg des äußeren Türgriffes 22 auf den Totgang C1 begrenzt, und
• – den dritten Aktuator 60 derart, daß er die ersten versenkbaren Mittel 58 aktiviert.

To do this, the central unit operates 34 :

• - in the lock module 12 arranged electrical actuator for locking / unlocking such that it on the inside operating lever 20 acts to lock in the sense of a lock,
• - the second actuator 52 such that it stops 50 in his position, in which this the way the outer door handle 22 limited to the backlash C1, and
• - the third actuator 60 such that it is the first retractable means 58 activated.

The operation of the outer and inner door handles 22 . 24 by an unauthorized individual has no effect on the external and internal operating levers connectable to the outer and inner door handles 14 . 16 to open. In addition, occurs upon actuation of the lock button 28 no change in this situation. The door is therefore secured against theft.

In case of a malfunction (malfunction of the battery, vehicle accident, etc.), the central unit performs 34 an instruction to unlock the anti-theft device of the door, if it was secured against theft. The user can remove the anti-theft device of the door from the outside of the vehicle, when he crank 26 of the lock operated by means of a key.

• – Betätigung des Außenbetätigungshebels 18 zum Verriegeln/Entriegeln,
• – Verschiebung des Anschlags 50 in seine eingeschobene Position zur Freigabe des zweiten Weges C2 und
• – Deaktivierung der ersten versenkbaren Mittel 58 des ersten Abstützorganes 42.

This has the effect:

• - Operation of the external operating lever 18 for locking / unlocking,
• - Shift of the stop 50 in its retracted position to release the second path C2 and
• - Deactivation of the first submersible funds 58 of the first supporting organ 42 ,

The Door is then no longer theft-proof.

The control system 10 according to the second embodiment of the invention is easily adaptable to a rear door, for which there is generally no externally operable lock is provided. In this case, although the crank of the castle can be omitted in the 1 and 2 illustrated lock module 12 but used. The outer control lever 18 for locking / unlocking is shut down. The first retractable means 58 can then form the parental control, by the third actuator 60 and / or, for elimination and / or escape in the event of a malfunction of the central processing unit 34 by conventional mechanical means 64 is operated, which in a conventional manner by a arranged on the narrow side of the door button 66 (see 4 ) to be controlled.

The control system 10 according to the third example ( 3 ), which does not form part of the claimed invention, assumes the functions that are consistent with the second embodiment. However, in the third embodiment, the lock module 12 without the "over ride" function, and the exterior and interior levers 18 . 20 for locking / unlocking are shut down.

The locking function of the door is therefore through the lock module 12 not realized, but by second retractable means 68 of the second support member 44 , These second retractable means 68 when activated, prevent the coupling of the first and second abutment members 42 . 44 in the displacement of the inner door handle 24 from its rest position to its door opening position.

The second catchment 68 are by fourth electrical means, preferably a fourth electric actuator 70 include, actuated. The latter is for example via the connecting part 36 and those inside the lock module 12 located electronic circuit with the central unit 34 connected and through this central unit 34 controlled.

The second catchment 68 are also by the lock button 28 operable with which they are transmitted via conventional mechanical means 72 are connected.

The lock button 28 also actuates the stop provided at the end of the backlash 50 , The latter is namely with the lock button 28 via disengageable coupling agent 74 remotely controllable by fifth electrical control means, preferably a fifth actuator 76 contain. The latter is for example via the connecting part 36 and those inside the lock module 12 located electronic circuit and is connected by this central unit 34 controlled.

Normal business. Business as usual

To execute an instruction to lock the door, the central unit operates 34 on the one hand the fourth actuator 70 to the second submersible agent 68 to activate, which in particular has a displacement of the locking knob in a locking position to the effect, and on the other hand, the second actuator 52 to the stop 50 in his the way of the outer door handle 22 to place within the backlash C1 limiting position. The operation of this door handle 22 by an unauthorized individual is without effect on the outside operating lever 14 to open. The door is then locked.

To execute an instruction for unlocking the door, the central unit operates 34 on the one hand the fourth actuator 70 to the second submersible agent 68 to deactivate, which in particular has a displacement of the locking button in a Entriegelungspositi on effect, and on the other hand, the second actuator 52 to the stop 50 in his the second way C2 of the outer door handle 22 to shift the releasing position. The operation of this door handle 22 by a user until the end of the second path C2 causes the coupling of the door handle 22 with the outside operating lever 14 to open and consequently the opening of the door.

• – den fünften Aktuator 76 an, so daß die Mittel 74 zur Kopplung des Verriegelungsknopfes 28 mit dem am Ende des Totganges vorgesehenen Anschlag 50 ausgekuppelt sind;
• – den zweiten Aktuator 52 an, so daß der Anschlag 50 sich in seiner den äußeren Türgriff 22 am Ende des Totganges C1 begrenzenden Position befindet,
• – den dritten Aktuator 60 an, so daß die ersten versenkbaren Mittel 58 aktiviert werden, und
• – den vierten Aktuator 70 an, so daß die zweiten versenkbaren Mittel 68 deaktiviert werden, was insbesondere eine Verlagerung des Verriegelungsknopfes in eine Entriegelungsstellung zur Wirkung hat.

In order to carry out an instruction concerning the theft prevention of the door, the central unit controls:

• - the fifth actuator 76 so that the funds 74 for coupling the locking button 28 with the stop provided at the end of the backlash 50 are disengaged;
• - the second actuator 52 on, so that the attack 50 himself in his the outer door handle 22 located at the end of the backlash C1 limiting position,
• - the third actuator 60 so that the first retractable means 58 be activated, and
• - the fourth actuator 70 so that the second retractable means 68 be deactivated, which in particular has a displacement of the locking knob in an unlocked position to the effect.

The operation of the outer door handle 22 and the inner door handle 24 by an unauthorized individual has no effect on the outside and inside operating levers 14 . 16 to open. In addition, all lead to the lock button 28 actions taken do not change this situation. The door is therefore in its secured against theft position.

Under normal operating conditions of the control system 10 the opening of the door from the interior of the vehicle takes place, with possible modifications, similar to what has been described in the first embodiment of the invention. The central unit 34 also controls the third, fourth and / or fifth actuator 60 . 70 . 78 to unlock the door or to release the anti-theft device when authorized opening by the means for identification 37 is released.

auxiliary operation

This corresponds to that in connection with the first embodiment of the invention described auxiliary operation.

As It will be noted, an advantage of the invention is that the control system according to the invention of the castle contains means, which ensure a "free-hand" operation, which are easily adapted to a conventional lock module can. Furthermore This control system also ensures additional functions, such as Parental control or anti-theft device, with which a conventional lock module is equipable.

Claims (11)

Control system for a motor vehicle door lock with - a lock module ( 12 ), which can be opened with external and internal operating levers ( 14 . 16 ), - an outer door handle ( 22 ) which is displaceable between a rest position and an open position of the device to be opened, and an inner door handle ( 24 ) which is displaceable between a rest position and an open position of the device to be opened, wherein the inner door handle ( 24 ) with the inside operating lever for opening ( 16 ), - electronic control means comprising a central processing unit ( 34 ) containing funds ( 37 ) is connected to identify a user who causes an open to release when a corresponding user has been identified, wherein according to a first opening mode the outer door handle ( 22 ) is displaceable from its rest position in the direction of its opening position along a path which successively has a first path (C1) designated as a backlash, in the course of which the door handle ( 22 ) and the external operating lever for opening ( 14 ) and the means of identification ( 37 ) are activated, and a second path (C2), in the course of which, the door handle ( 22 ) and the external operating lever for opening ( 14 ), characterized in that the control system further comprises first electrical means ( 48 ) for actuating the internal operating lever for opening ( 16 ) provided by the central unit ( 34 ) are controllable such that they are activated when, according to a second opening mode, a release for opening the device to be opened by the means ( 37 ) is issued for identification. System according to claim 1, characterized in that the system has a retractable stop (11) arranged at the end of the backlash ( 50 ) connected to the outer door handle ( 22 ) and by an external lock ( 26 ) of the device to be opened and by second electrical actuation means ( 52 ) actuated by the central unit ( 34 ) are controllable. System according to Claim 2, characterized in that the stop () arranged at the end of the lost motion ( 50 ) also by an inner locking button ( 28 ) of the device to be opened can be actuated. System according to Claim 3, characterized in that the stop () arranged at the end of the backlash ( 50 ) with the inner locking button ( 28 ) via decoupled coupling agents ( 74 ) connected by third electrical actuation means ( 76 ) actuated by the central unit ( 34 ) are controllable. System according to one of claims 1 to 4, characterized in that the system also comprises first and second supporting members ( 42 . 44 ), each with the internal operating lever for opening ( 16 ) and the inner door handle ( 24 ) and mutually cooperatively cooperating with each other to open the inner operating lever ( 16 ) and the inner door handle ( 24 ) when the inner door handle ( 24 ) is displaced from its rest position towards its open position. System according to claim 5, characterized in that the system comprises first retractable means ( 58 ) of the first support member ( 42 ), which, when activated, the coupling of the first and second supporting organ ( 42 . 44 ) during the relocation of the internal door handle ( 24 ) from its rest position into its position to open the device to be opened, these first retractable means ( 58 ) preferably constitute means for theft protection or child safety of the device to be opened. System according to claim 6, characterized in that the first retractable means ( 58 ) by fourth electrical actuation means ( 60 ) actuated by the central unit ( 34 ) are controllable. System according to claim 6 or 7, characterized in that the first retractable means ( 58 ) by mechanical means ( 64 ) which can be actuated with an organ arranged on the narrow side of the device to be opened ( 66 ) is connected to operate the child safety device. System according to claim 2 in conjunction with claim 6 or 7, characterized in that the first retractable means ( 58 ) by mechanical means connected to the outer lock ( 62 ) are operable. System according to one of Claims 5 to 9, characterized in that the system comprises second retractable means ( 68 ) of the second support member ( 44 ), which when activated, the coupling of the first and second support members ( 42 . 44 ) during the displacement of the inner door handle ( 24 ) from its rest position towards its position opening the device to be opened, these second retractable means ( 68 ) preferably form means for locking the device to be opened. System according to claim 3 or 4 in conjunction with claim 10, characterized in that the second retractable means ( 68 ) by fifth electrical actuation means ( 70 ) actuated by the central unit ( 34 ) and the inner lock button ( 28 ) are controllable.