EP0357965B1 - Method for separately unlocking a lock in a central vehicle-locking system, and central-locking system therefor - Google Patents

Method for separately unlocking a lock in a central vehicle-locking system, and central-locking system therefor Download PDF

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Publication number
EP0357965B1
EP0357965B1 EP19890114406 EP89114406A EP0357965B1 EP 0357965 B1 EP0357965 B1 EP 0357965B1 EP 19890114406 EP19890114406 EP 19890114406 EP 89114406 A EP89114406 A EP 89114406A EP 0357965 B1 EP0357965 B1 EP 0357965B1
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EP
European Patent Office
Prior art keywords
locking
switch
central
switch means
pulse counter
Prior art date
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Expired - Lifetime
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EP19890114406
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German (de)
French (fr)
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EP0357965A2 (en
EP0357965A3 (en
Inventor
Tobias Reis
Wolfgang Schneider
Günther Weikert
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Daimler Benz AG
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Daimler Benz AG
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Publication of EP0357965A3 publication Critical patent/EP0357965A3/en
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Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B77/00—Vehicle locks characterised by special functions or purposes
    • E05B77/46—Locking several wings simultaneously
    • E05B77/50—Locking several wings simultaneously by pneumatic or hydraulic means
    • 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 invention relates to a method for separately unlocking a lock in a motor vehicle with a central locking system with the features of the preamble of claim 1.
  • a method with these features can be derived from influencing a central locking system (hereinafter ZVA) according to DE-OS 36 12 306.
  • ZVA central locking system
  • an electrical switch is provided in the passenger compartment of the vehicle, by means of which a solenoid valve inserted in a bidirectional line to a line distributor can be controlled electrically in the reverse direction.
  • the blocking solenoid valve prevents - unlocking - pressurization of control elements which are connected to the line distributor via fluid lines.
  • a - Locking - negative pressure on these control elements, which are assigned to the locks on the front passenger and rear doors, is possible at any time via a check valve connected in parallel to the solenoid valve.
  • the other locks remain locked because the actuating elements assigned to them cannot be pressurized, although a ZVA control signal is generated by a control switch assigned to the driver's door lock. Also with electrical switches arranged in the passenger compartment, according to DE-OS 29 31 136, the function of a ZVA can be canceled either only when unlocking or when unlocking and locking, so that only individual unlocking or locking of all locks is possible.
  • a loss of comfort in both known systems is that the electrical switches, which enable the individual unlocking of one lock each, can only be operated from the interior. Therefore, before leaving his vehicle, the vehicle user must decide whether he wants or needs to unlock all locks or only the driver's door lock the next time he gets in.
  • the invention has the task of developing the generic method so that a choice between central Unlocking all locks and direct unlocking of only one lock from the same locking point must only be taken from the outside when unlocking the vehicle, and to specify at least one central locking system which is suitable for carrying out this method.
  • the invention makes use of the fact that, from locking points generally formed by mechanical locking cylinders, the lock directly associated with them can be mechanically unlocked and locked.
  • the object is achieved in that a ZVA control signal in the unlocking direction is only generated when this locking point is actuated several times, although the switching means provided per se are switched each time the locking point is actuated.
  • the second-mentioned DE-PS also already discloses second switching means assigned to the respective locking point, which are also actuated with a master key each time they are actuated, and which also play an important role in the ZVA according to the present invention. Nevertheless, the second-mentioned DE-PS does not give any indication of a function of the ZVA according to the invention.
  • a ZVA is installed, which essentially consists of a central control circuit 1, control elements 2 and 2F - here designed as pneumatic single-chamber bi-pressure elements - and first switching means 3, 4 and 5.
  • the central control circuit 1 which can be activated via three individual control lines 6, 7 and 8, operates the control elements 2 and 2 F indirectly by means of a bidirectional pump 10 driven reversibly by an electric motor 9.
  • the first switching means 3, 4 and 5 are designed as bistable two-way switches.
  • the movable contact of the changeover switches 3 and 4 is connected to the respective control line 6 and 7.
  • the two fixed contacts the changeover switches 3 and 4 are each connected to the opposite potential of a voltage source 11.
  • the changeover switches are used to directly activate the central control circuit 1, known per se, by means of potential changes on at least one of the control lines 6 or 7.
  • the position of the changeover switches corresponds in each case to the position of an assigned closure, ie "unlocked” or “locked” due to mechanical coupling.
  • the changeover switches can be integrated, for example, into the adjusting elements 2 assigned to the respective closures.
  • the control line 8 connects a logic module 12 to the central control circuit 1.
  • the first switching means 5 also designed as a bistable change-over switch, is assigned to a driver's door locking point 13, which, for the immediate unlocking and locking of a driver's door lock 14, as well as the actuator of the actuating element 2F with a locking lever 15 of the lock 14 mechanically via a linkage 15 'or Like. Is connected.
  • the movable contact of the changeover switch 5 is connected via a partial control line 8 'to the logic module 12. Only one of its fixed contacts is connected to negative potential of voltage source 11, the other fixed contact is potential-free.
  • the closing point 13 is assigned a second switching means 16 in the form of a single-pole closer. While also the bistable changeover switch 5 assumes its position corresponding to the position of the closure 14, the partial control line 8 'either being supplied with negative potential or being potential-free, the make contact 16 leads each time the closing point 13 is actuated - which, as usual, is indicated by a locking cylinder is formed - a pulse counter 17 to the negative potential of the voltage source 11 via a counter input 18.
  • the pulse counter 17 is also connected to the partial control line 8 'with a RESET input 19.
  • An output signal of the pulse counter 17 is supplied to the logic module 12 via a second partial control line 8 ⁇ . Via this second partial control line 8 ⁇ , the logic module 12 can also be supplied with a signal from an interior release button 20 arranged in the passenger compartment of the vehicle.
  • a vehicle user can initially mechanically unlock the driver's door lock 14 with the arrangement according to the invention of the locking point 13 and the switching means 5 and 16 associated with it, by actuating the locking point 13 once in the unlocking direction. He does not need to differentiate between different key swivel angles.
  • the locking lever 15 is pulled over the linkage 15 'in its dashed unlocked position, the changeover switch 5 is switched to its potential-free fixed contact and executed, for example, as a locking cylinder microswitch Normally opener 16 is actuated once - during the back and forth rotation of the locking cylinder.
  • the closer 16 is closed, for example by a cam on the locking cylinder, immediately after its rotation from its neutral key insertion and removal position and remains closed until the locking cylinder almost assumes this position again.
  • a first switching signal of the make contact 16 is then fed to the pulse counter 17 via the counter input 18.
  • the central control circuit 1 is not activated, i.e. the other closures remain locked.
  • the pulse counter 17 If another switching signal of the closer 16 - which is generated by renewed actuation of the closing point 13 in the unlocking direction - reaches the counter input 18 within this period, the pulse counter 17 outputs a signal to the logic module 12 via the second partial control line 8 '. Only this signal from the pulse counter 17 is converted by the logic module 12 into an unlocking control signal, which it outputs via the control line 8 to the central control circuit 1 and which corresponds to the unlocking control signals, which can be generated directly with the changeover switches 3 or 4.
  • the central control circuit 1 for central unlocking of all locks provided with actuating elements 2 can thus be activated by actuating the locking point 13 twice in the unlocking direction or by actuating the internal unlocking button 20 once.
  • the pulse counter 17 is automatically reset when it expires without a resulting output signal, e.g. by a corresponding signal from the timer. If all locks are still to be unlocked centrally from the driver's door locking point after the first time, the corresponding unlocking control signal can be generated indirectly by briefly pressing the locking point 13 in the unlocking direction twice in succession, as explained above.
  • a restart of the time period is also required if a switching signal of the changeover switch 5 - from "potential-free” to "negative potential” - is applied to the RESET input 19 via the partial control line 8 during its duration.
  • this switching signal is converted into a locking control signal on the control line 8 and corresponding activation of the central control circuit 1 for the central locking of all locks provided with control elements 2 and 2F.
  • the pulse counter 17 is reset to its initial state by the same switching signal.
  • FIG. 2 shows that the control principle of the ZVA is not important for the use of the additional function according to the invention.
  • FIG. 2 count upwards from 101 in order on the one hand to make clear distinctions between elements of both figures and on the other hand equivalences between elements of the same function.
  • the central control circuit 1 (FIG. 1) and the central control circuit 101 (FIG. 2), the closing point switching means 5 (FIG. 1) and 105 (FIG. 2), the actuating elements 2 (FIG. 1) and 102 ( Fig.2) etc. functionally.
  • the illustration of mechanical relationships has been omitted in FIG. 2, since electrical functions are essential here.
  • the central control circuit 101 operates reversible electrical actuating elements 102 in the locking or unlocking direction via a power stage 110. For this purpose, it can be activated via at least two control lines 108.1 and 108.2, the first of which is provided for transmitting a locking control signal from a switching means 105.
  • the switching means 105 which is designed as a toggle switch with a neutral central position, is connected with its movable contact to the positive potential of the on-board voltage source 111 and is mechanically connected to a closing point 113 - only indicated by dash-dotted lines. Via this closing point, the movable contact can be switched alternately to the first control line 108.1 or to a partial control line 108.2 '. In the first case, the central control circuit 101 is activated immediately to operate the actuating elements 102 in the locking direction.
  • the pulse counter 117 If a further switching signal comes over the partial control line 108.2 'within this period, the pulse counter 117 outputs an unlocking control signal to the central control circuit 101 via the control line 108.2, which then operates the actuating elements 102 in the unlocking direction and unlocks all locks centrally.
  • the pulse counter is automatically reset.
  • the pulse counter 117 is also reset.

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  • Lock And Its Accessories (AREA)

Description

Die Erfindung bezieht sich auf ein Verfahren zur separaten Entriegelung eines Verschlusses in einem Kraftfahrzeug mit Zentralverriegelungsanlage mit den Merkmalen des Oberbegriffs des Patentanspruchs 1.The invention relates to a method for separately unlocking a lock in a motor vehicle with a central locking system with the features of the preamble of claim 1.

Ein Verfahren mit diesen Merkmalen läßt sich aus der Beeinflussung einer Zentralverriegelungsanlage ( im folgenden ZVA) gemäß DE-OS 36 12 306 ableiten.A method with these features can be derived from influencing a central locking system (hereinafter ZVA) according to DE-OS 36 12 306.

Dort ist ein elektrischer Schalter im Fahrgastraum des Fahrzeugs vorgesehen, mit dem ein in eine Bidruckleitung zu einem Leitungsverteiler eingesetztes Magnetventil elektrisch im Sperrsinn ansteuerbar ist. Das sperrende Magnetventil verhindert eine - entriegelnde - Druckbeaufschlagung von Stellelementen, die über Fluidleitungen an den Leitungsverteiler angeschlossen sind. Eine - verriegelnde - Unterdruckbeaufschlagung dieser Stellelemente, die den Verschlüssen der Beifahrer- und Fondtüren zugeordnet sind, ist jederzeit über ein zum Magnetventil parallelgeschaltetes Rückschlagventil möglich. Bei geschlossenem Magnetventil, d.h. bei geschlossenem elektrischem Schalter und stromführender Magnetwicklung, wird nur der Fahrertürverschluß bei einer entsprechenden Betätigung seines Schließzylinders entriegelt. Die übrigen Verschlüsse bleiben verriegelt, weil die ihnen zugeordneten Stellelemente nicht druckbeaufschlagt werden können, obwohl von einem dem Fahrertürverschluß zugeordneten Steuerschalter ein ZVA-Steuersignal erzeugt wird.
Ebenfalls mit im Fahrgastraum angeordneten elektrischen Schaltern kann gemäß DE-OS 29 31 136 die Funktion einer ZVA entweder nur bei Entriegelung oder bei Entriegelung und Verriegelung aufgehoben werden, so daß nur Einzelentriegelung bzw. -verriegelung aller Verschlüsse möglich ist.There, an electrical switch is provided in the passenger compartment of the vehicle, by means of which a solenoid valve inserted in a bidirectional line to a line distributor can be controlled electrically in the reverse direction. The blocking solenoid valve prevents - unlocking - pressurization of control elements which are connected to the line distributor via fluid lines. A - Locking - negative pressure on these control elements, which are assigned to the locks on the front passenger and rear doors, is possible at any time via a check valve connected in parallel to the solenoid valve. When the solenoid valve is closed, ie when the electrical switch is closed and the magnetic coil is energized, only the driver's door lock is unlocked when the lock cylinder is actuated accordingly. The other locks remain locked because the actuating elements assigned to them cannot be pressurized, although a ZVA control signal is generated by a control switch assigned to the driver's door lock.
Also with electrical switches arranged in the passenger compartment, according to DE-OS 29 31 136, the function of a ZVA can be canceled either only when unlocking or when unlocking and locking, so that only individual unlocking or locking of all locks is possible.

Als Komforteinbuße bei beiden bekannten Anlagen ist anzusehen, daß die elektrischen Schalter, welche die Einzelentriegelung jeweils eines Verschlusses ermöglichen, nur vom Innenraum aus betätigt werden können. Deshalb muß der Fahrzeugbenutzer schon vor dem Verlassen seines Fahrzeuges entscheiden, ob er beim nächsten Einsteigen zentral alle Verschlüsse oder nur den Fahrertürverschluß entriegeln will bzw. muß.A loss of comfort in both known systems is that the electrical switches, which enable the individual unlocking of one lock each, can only be operated from the interior. Therefore, before leaving his vehicle, the vehicle user must decide whether he wants or needs to unlock all locks or only the driver's door lock the next time he gets in.

Die Erfindung hat die Aufgabe, das gattungsgemäße Verfahren so weiterzubilden, daß eine Wahl zwischen zentraler Entriegelung aller Verschlüsse und direkter Entriegelung nur eines Verschlusses von derselben Schließstelle aus jeweils erst beim Entriegeln des Fahrzeuges von außen getroffen werden muß, und wenigstens eine Zentralverriegelungsanlage anzugeben, welche zur Durchführung dieses Verfahrens geeignet ist.The invention has the task of developing the generic method so that a choice between central Unlocking all locks and direct unlocking of only one lock from the same locking point must only be taken from the outside when unlocking the vehicle, and to specify at least one central locking system which is suitable for carrying out this method.

Diese Aufgabe wird bei gattungsgemäßen ZVA mit den kennzeichnenden Merkmalen des Verfahrensanspruchs 1 sowie der (Vorrichtungs-)Ansprüche 5 und 6 erfindungsgemäß gelöst.This object is achieved according to the invention in the generic ZVA with the characterizing features of method claim 1 and (device) claims 5 and 6.

Die Erfindung macht sich zunutze, daß von im allgemeinen durch mechanische Schließzylinder gebildeten Schließstellen aus jedenfalls der diesen unmittelbar zugeordnete Verschluß mechanisch entriegelt und verriegelt werden kann. Die gestellte Aufgabe wird dadurch gelöst, daß ein ZVA-Steuersignal im Entriegelungssinn erst bei mehrmaliger Betätigung dieser Schließstelle erzeugt wird, obwohl die an sich dafür vorgesehenen Schaltmittel bei jeder Betätigung der Schließstelle geschaltet werden.The invention makes use of the fact that, from locking points generally formed by mechanical locking cylinders, the lock directly associated with them can be mechanically unlocked and locked. The object is achieved in that a ZVA control signal in the unlocking direction is only generated when this locking point is actuated several times, although the switching means provided per se are switched each time the locking point is actuated.

Es ist bekannt (DE-PS 31 13 893, DE-OS 31 36 468), eine elektrische Türschloßheizung zur Verhinderung mißbräuchlichen Energieverbrauchs erst bei innerhalb eines vorgegebenen Zeitintervalls erfolgender zweimaliger Betätigung der Türschloßaußenhandhabe (Ziehgriff, Drücker etc.) einzuschalten. Einen Hinweis auf eine erfindungsgemäße Vorgehensweise zur Beeinflussung einer ZVA geben diese Druckschriften nicht.It is known (DE-PS 31 13 893, DE-OS 31 36 468) to switch on an electric door lock heater to prevent improper energy consumption only when the door lock outer handle (pull handle, handle, etc.) is operated twice within a predetermined time interval. These documents do not give an indication of a procedure according to the invention for influencing a ZVA.

Die kennzeichnenden Merkmale der Unteransprüche 2 bis 4 offenbaren vorteilhafte Weiterbildungen und Ausgestaltungen des erfindungsgemäßen Verfahrens, während die beiden nebengeordneten Ansprüche 5 und 6 Zentralverriegelungsanlagen definieren, welche sich beide unter Verwendung unterschiedlicher Steuerprinzipe zur Durchführung des Verfahrens eignen.The characterizing features of subclaims 2 to 4 reveal advantageous developments and refinements of the method according to the invention, while the two independent claims 5 and 6 define central locking systems, both of which are suitable for carrying out the method using different control principles.

Die jeweiligen Steuerprinzipe sind an sich aus der bereits gattungsbildenden DE-OS 36 12 306 einerseits und aus der DE-PS 35 31 349 andererseits bekannt. Rein äußerlich unterscheiden sie sich durch die Anzahl der von den Schaltmitteln in den Schließstellen zur jeweiligen Zentralsteuerschaltung führenden elektrischen Steuerleitungen. Im erstgenannten Fall sind es deren zwei, die je nach Betätigungssinn des Schaltmittels im Wechsel, aber mit gleichbleibendem elektrischem Potential beaufschlagbar und im Ruhezustand potentialfrei sind. Im zweitgenannten Fall führt von jedem Schließstellen-Schaltmittel nur je eine Steuerleitung zur Zentralsteuerschaltung, wobei diese Steuerleitung im Wechsel mit positivem bzw. negativem elektrischen Potential beaufschlagbar ist. Die zweitgenannte DE-PS offenbart auch bereits zweite, der jeweiligen Schließstelle zugeordnete Schaltmittel, die bei deren jeder Betätigung mit einem Hauptschlüssel mitbetätigt werden, und welche auch bei der erfindungsgemäß ausgestalteten ZVA nach Anspruch 5 eine wichtige Rolle spielen. Dennoch ist auch der zweitgenannten DE-PS keinerlei Hinweis auf eine erfindungsgemäße Funktion der ZVA zu entnehmen.The respective tax principles are known per se from the already generic DE-OS 36 12 306 on the one hand and from DE-PS 35 31 349 on the other. Outwardly, they differ in the number of electrical control lines leading from the switching means in the closing points to the respective central control circuit. In the former case, there are two of them which, depending on the sense of actuation of the switching means, can be acted upon alternately but with a constant electrical potential and are potential-free in the idle state. In the second-mentioned case, only one control line leads from each closing point switching means to the central control circuit, this control line alternately being able to be acted upon by positive or negative electrical potential. The second-mentioned DE-PS also already discloses second switching means assigned to the respective locking point, which are also actuated with a master key each time they are actuated, and which also play an important role in the ZVA according to the present invention. Nevertheless, the second-mentioned DE-PS does not give any indication of a function of the ZVA according to the invention.

Außer aus den Merkmalen der auf die ZVA gerichteten Unteransprüche gehen weitere Vorteile und Einzelheiten aus der Zeichnung zweier Ausführungsbeispiele von ZVA und aus deren sich hier anschließender eingehender Beschreibung hervor.

Figur 1
zeigt eine ZVA mit einem ersten Steuerprinzip und
Figur 2
zeigt eine ZVA mit einem davon abweichenden Steuerprinzip,
welche beide zur Durchführung des erfindungsgemäßen Verfahrens ausgestaltet- sind, in stark vereinfachender schematischer Darstellung.
In addition to the features of the dependent claims directed to the ZVA, further advantages and details emerge from the drawing of two exemplary embodiments of ZVA and from the following detailed description thereof.
Figure 1
shows a ZVA with a first tax principle and
Figure 2
shows a ZVA with a different tax principle,
which are both designed to carry out the method according to the invention, in a highly simplified schematic representation.

In einem nicht dargestellten Kraftfahrzeug ist eine ZVA eingebaut, die im wesentlichen aus einer Zentralsteuerschaltung 1, Stellelementen 2 und 2F - hier als pneumatische Einkammer-Bidruckelemente ausgebildet - und ersten Schaltmitteln 3, 4 und 5 aufgebaut ist.In a motor vehicle, not shown, a ZVA is installed, which essentially consists of a central control circuit 1, control elements 2 and 2F - here designed as pneumatic single-chamber bi-pressure elements - and first switching means 3, 4 and 5.

Die über drei einzelne Steuerleitungen 6, 7 und 8 aktivierbare Zentralsteuerschaltung 1 betreibt die Stellelemente 2 und 2 F mittelbar durch eine von einem Elektromotor 9 reversierbar angetriebene Bidruckpumpe 10.The central control circuit 1, which can be activated via three individual control lines 6, 7 and 8, operates the control elements 2 and 2 F indirectly by means of a bidirectional pump 10 driven reversibly by an electric motor 9.

Die ersten Schaltmittel 3, 4 und 5 sind als bistabile Wechselschalter ausgeführt. Der bewegliche Kontakt der Wechselschalter 3 und 4 ist an die jeweilige Steuerleitung 6 und 7 angeschlossen. Die beiden Festkontakte der Wechselschalter 3 und 4 liegen jeweils an gegensätzlichem Potential einer Spannungsquelle 11. Mittels dieser Wechselschalter erfolgt die an sich bekannte unmittelbare Aktivierung der Zentralsteuerschaltung 1 mittels Potentialwechseln auf wenigstens einer der Steuerleitungen 6 oder 7. Die Stellung der Wechselschalter entspricht jeweils der Stellung eines zugeordneten Verschlusses, d.h. "entriegelt" oder "verriegelt", aufgrund mechanischer Kopplung. In bekannter Weise können die Wechselschalter z.B. in die den jeweiligen Verschlüssen zugeordneten Stellelemente 2 integriert sein. Beim Ent- oder Verriegeln der - nicht dargestellten - Verschlüsse an Beifahrertür und Kofferraumdeckel wird die Zentralsteuerschaltung 1 also unmittelbar aktiviert.The first switching means 3, 4 and 5 are designed as bistable two-way switches. The movable contact of the changeover switches 3 and 4 is connected to the respective control line 6 and 7. The two fixed contacts the changeover switches 3 and 4 are each connected to the opposite potential of a voltage source 11. The changeover switches are used to directly activate the central control circuit 1, known per se, by means of potential changes on at least one of the control lines 6 or 7. The position of the changeover switches corresponds in each case to the position of an assigned closure, ie "unlocked" or "locked" due to mechanical coupling. In a known manner, the changeover switches can be integrated, for example, into the adjusting elements 2 assigned to the respective closures. When the locks (not shown) on the passenger door and trunk lid are unlocked or locked, the central control circuit 1 is activated immediately.

Die Steuerleitung 8 verbindet einen Logikbaustein 12 mit der Zentralsteuerschaltung 1.The control line 8 connects a logic module 12 to the central control circuit 1.

Das ebenfalls als bistabiler Wechselschalter ausgebildete erste Schaltmittel 5 ist einer Fahrertür-Schließstelle 13 zugeordnet, welche zur unmittelbaren Ent- und Verriegelung eines Fahrertür-Verschlusses 14 ebenso wie das Stellglied des Stellelementes 2F mit einem Riegelhebel 15 des Verschlusses 14 mechanisch über ein Gestänge 15′ oder dgl. verbunden ist. Der bewegliche Kontakt des Wechselschalters 5 ist über eine Teil-Steuerleitung 8′ an den Logikbaustein 12 angeschlossen. Nur einer seiner Festkontakte ist an negatives Potential der Spannungsquelle 11 angeschlossen, der andere Festkontakt ist potentialfrei.The first switching means 5, also designed as a bistable change-over switch, is assigned to a driver's door locking point 13, which, for the immediate unlocking and locking of a driver's door lock 14, as well as the actuator of the actuating element 2F with a locking lever 15 of the lock 14 mechanically via a linkage 15 'or Like. Is connected. The movable contact of the changeover switch 5 is connected via a partial control line 8 'to the logic module 12. Only one of its fixed contacts is connected to negative potential of voltage source 11, the other fixed contact is potential-free.

Ferner ist der Schließstelle 13 ein zweites Schaltmittel 16 in Gestalt eines einpoligen Schließers zugeordnet. Während auch der bistabile Wechselschalter 5 seine Stellung entsprechend der Stellung des Verschlusses 14 einnimmt, wobei die Teil-Steuerleitung 8′ entweder mit negativem Potential beaufschlagt oder potentialfrei ist, führt der Schließer 16 bei jeder Betätigung der Schließstelle 13 - die wie üblich durch einen angedeuteten Schließzylinder gebildet wird - einem Impulszähler 17 das negative Potential der Spannungsquelle 11 über einen Zählereingang 18 zu. Der Impulszähler 17 ist ferner mit einem RESET-Eingang 19 an die Teil-Steuerleitung 8′ angeschlossen. Ein Ausgangssignal des Impulszählers 17 wird über eine zweite Teil-Steuerleitung 8˝ dem Logikbaustein 12 zugeführt. Über diese zweite Teil-Steuerleitung 8˝ kann dem Logikbaustein 12 ferner noch ein Signal eines im Fahrgastraum des Fahrzeugs angeordneten Innenentriegelungstasters 20 zugeführt werden.Furthermore, the closing point 13 is assigned a second switching means 16 in the form of a single-pole closer. While also the bistable changeover switch 5 assumes its position corresponding to the position of the closure 14, the partial control line 8 'either being supplied with negative potential or being potential-free, the make contact 16 leads each time the closing point 13 is actuated - which, as usual, is indicated by a locking cylinder is formed - a pulse counter 17 to the negative potential of the voltage source 11 via a counter input 18. The pulse counter 17 is also connected to the partial control line 8 'with a RESET input 19. An output signal of the pulse counter 17 is supplied to the logic module 12 via a second partial control line 8˝. Via this second partial control line 8˝, the logic module 12 can also be supplied with a signal from an interior release button 20 arranged in the passenger compartment of the vehicle.

Ausgehend vom dargestellten verriegelten Zustand aller Verschlüsse kann ein Fahrzeugbenutzer mit der erfindungsgemäßen Anordnung der Schließstelle 13 und der dieser zugeordneten Schaltmittel 5 und 16 zunächst in gewohnter Weise den Fahrertürverschluß 14 mechanisch entriegeln, indem er die Schließstelle 13 einmal im Entriegelungssinn betätigt. Er braucht dabei auch nicht zwischen verschiedenen Schlüsselschwenkwinkeln zu unterscheiden. Dabei wird der Riegelhebel 15 über das Gestänge 15′ in seine gestrichelte Entriegelungsstellung gezogen, der Wechselschalter 5 wird auf seinen potentialfreien Festkontakt umgeschaltet und der z.B. als Schließzylinder-Mikroschalter ausgeführte Schließer 16 wird einmal - während der Hin- und Rückdrehung des Schließzylinders - betätigt. Der Schließer 16 wird z.B. durch einen Nocken am Schließzylinder schon gleich nach dessen Verdrehung aus seiner neutralen Schlüsseleinsteck- und -abziehstellung geschlossen und bleibt geschlossen, bis der Schließzylinder diese Stellung wieder nahezu einnimmt. Über den Zählereingang 18 wird dann dem Impulszähler 17 ein erstes Schaltsignal des Schließers 16 zugeführt.Starting from the shown locked state of all locks, a vehicle user can initially mechanically unlock the driver's door lock 14 with the arrangement according to the invention of the locking point 13 and the switching means 5 and 16 associated with it, by actuating the locking point 13 once in the unlocking direction. He does not need to differentiate between different key swivel angles. The locking lever 15 is pulled over the linkage 15 'in its dashed unlocked position, the changeover switch 5 is switched to its potential-free fixed contact and executed, for example, as a locking cylinder microswitch Normally opener 16 is actuated once - during the back and forth rotation of the locking cylinder. The closer 16 is closed, for example by a cam on the locking cylinder, immediately after its rotation from its neutral key insertion and removal position and remains closed until the locking cylinder almost assumes this position again. A first switching signal of the make contact 16 is then fed to the pulse counter 17 via the counter input 18.

Die Zentralsteuerschaltung 1 wird nicht aktiviert, d.h. die übrigen Verschlüsse bleiben verriegelt.The central control circuit 1 is not activated, i.e. the other closures remain locked.

Durch das erste Schaltsignal des Schließers 16, das an dem Zählereingang 18 noch dann anliegt, wenn der RESET-Eingang 19 bereits potentialfrei ist, wird intern in dem mit einem Summen-(Σ) und Zeitkonstanten-(T) Symbol gekennzeichneten Impulszähler 17 eine Zeitschaltung angestoßen, die eine bestimmte Zeitspanne definiert, z.B. 5 Sekunden.The first switching signal of the normally open contact 16, which is still present at the counter input 18 when the RESET input 19 is already potential-free, turns a timer into the pulse counter 17 marked with a sum (Σ) and time constant (T) symbol initiated that defines a certain period of time, e.g. 5 seconds.

Gelangt innerhalb dieser Zeitspanne noch ein weiteres Schaltsignal des Schließers 16 - das durch erneute Betätigung der Schließstelle 13 im Entriegelungssinn erzeugt wird - an den Zählereingang 18, so gibt der Impulszähler 17 über die zweite Teil-Steuerleitung 8′ ein Signal an den Logikbaustein 12 ab. Erst dieses Signal des Impulszählers 17 wird von dem Logikbaustein 12 in ein Entriegelungssteuersignal umgesetzt, welches er über die Steuerleitung 8 an die Zentralsteuerschaltung 1 abgibt und welches den Entriegelungssteuersignalen entspricht, die unmittelbar mit den Wechselschaltern 3 oder 4 erzeugbar sind.If another switching signal of the closer 16 - which is generated by renewed actuation of the closing point 13 in the unlocking direction - reaches the counter input 18 within this period, the pulse counter 17 outputs a signal to the logic module 12 via the second partial control line 8 '. Only this signal from the pulse counter 17 is converted by the logic module 12 into an unlocking control signal, which it outputs via the control line 8 to the central control circuit 1 and which corresponds to the unlocking control signals, which can be generated directly with the changeover switches 3 or 4.

In gleicher Weise wie das Ausgangssignal des Impulszählers 17 wird im Logikbaustein auch ein Schaltsignale des Innenentriegelungstasters 20 verarbeitet. Mit innerhalb der Zeitspanne zweimaliger Betätigung der Schließstelle 13 im Entriegelungssinn oder mit einmaliger Betätigung des Innenentriegelungstasters 20 ist also die Zentralsteuerschaltung 1 zur zentralen Entriegelung aller mit Stellelementen 2 versehenen Verschlüsse aktivierbar.In the same way as the output signal of the pulse counter 17, a switching signal of the interior release button 20 is processed in the logic module. The central control circuit 1 for central unlocking of all locks provided with actuating elements 2 can thus be activated by actuating the locking point 13 twice in the unlocking direction or by actuating the internal unlocking button 20 once.

Wird innerhalb der Zeitspanne kein zweites Schaltsignal des Schließers 16 an den Zählereingang 18 angelegt, so erfolgt mit deren Ablauf ein selbsttätiges Rücksetzen des Impulszählers 17 ohne resultierendes Ausgangssignal, z.B. durch ein entsprechendes Signal der Zeitschaltung. Sollen nach erstmaligem Ablauf der Zeitspanne doch noch alle Verschlüsse von der Fahrertür-Schließstelle aus zentral entriegelt werden, so kann das entsprechende Entriegelungssteuersignal durch diesmal kurz hintereinander folgendes zweimaliges Betätigen der Schließstelle 13 im Entriegelungssinn, wie oben erläutert, mittelbar erzeugt werden.If no second switching signal of the make contact 16 is applied to the counter input 18 within the period of time, the pulse counter 17 is automatically reset when it expires without a resulting output signal, e.g. by a corresponding signal from the timer. If all locks are still to be unlocked centrally from the driver's door locking point after the first time, the corresponding unlocking control signal can be generated indirectly by briefly pressing the locking point 13 in the unlocking direction twice in succession, as explained above.

Ein Neustart der Zeitspanne wird auch dann erforderlich, wenn während deren Dauer an den RESET-Eingang 19 über die Teil-Steuerleitung 8′ ein Schaltsignal des Wechselschalters 5 - von "Potentialfrei" auf "negatives Potential" -angelegt wird.A restart of the time period is also required if a switching signal of the changeover switch 5 - from "potential-free" to "negative potential" - is applied to the RESET input 19 via the partial control line 8 during its duration.

Im Logikbaustein 12 wird dieses Schaltsignal zu einem Verriegelungssteuersignal auf der Steuerleitung 8 und entsprechender Aktivierung der Zentralsteuerschaltung 1 zur zentralen Verriegelung aller mit Stellelementen 2 und 2F versehenen Verschlüsse umgesetzt.In the logic module 12, this switching signal is converted into a locking control signal on the control line 8 and corresponding activation of the central control circuit 1 for the central locking of all locks provided with control elements 2 and 2F.

Der Impulszähler 17 wird durch dasselbe Schaltsignal in seinen Anfangszustand rückgesetzt.The pulse counter 17 is reset to its initial state by the same switching signal.

Es ist klar ersichtlich, daß für die Zusatzfunktion "Separates Entriegeln des Fahrertür-Verschlusses" an der Zentralsteuerschaltung 1 keinerlei Veränderung vorgenommen werden muß, weil deren Eingangssteuersignale - die Potentialwechsel auf den Steuerleitungen 6, 7 und 8 - beibehalten werden können. Auch die Bedienung der ZVA bleibt weitestgehend unverändert und damit benutzerfreundlich. Zur Anleitung bezüglich der Zusatzfunktion bedarf es lediglich eines kurzen Hinweises in der Bedienungsanleitung des Fahrzeuges, weil die Zusatzfunktion an sich leicht nachvollziehbar ist.It is clearly evident that no change has to be made to the central control circuit 1 for the additional function "separate unlocking of the driver's door lock" because its input control signals - the potential changes on the control lines 6, 7 and 8 - can be maintained. The operation of the ZVA remains largely unchanged and therefore user-friendly. The instructions for the additional function only require a brief note in the operating instructions of the vehicle, because the additional function itself is easy to understand.

Natürlich kann die Zusatzfunktion in der dargestellten ZVA mit Mehrstellenbedienung auch an mehreren Schließstellen gleichzeitig eingesetzt werden.Of course, the additional function in the ZVA shown with multi-point operation can also be used at several locking points at the same time.

Figur 2 zeigt, daß es zur Verwendung der Zusatzfunktion gemäß der Erfindung auf das Steuerprinzip der ZVA nicht ankommt.Figure 2 shows that the control principle of the ZVA is not important for the use of the additional function according to the invention.

Die Bezugsziffern zählen in Figur 2 von 101 an aufwärts, um einerseits klare Unterscheidungen zwischen Elementen beider Figuren zu treffen, andererseits Äquivalenzen zwischen Elementen gleicher Funktion anzudeuten. So entsprechen sich die Zentralsteuerschaltung 1 (Fig.1) und die Zentralsteuerschaltung 101 (Fig.2), die Schließstellen-Schaltmittel 5 (Fig.1) und 105 (Fig.2), die Stellelemente 2 (Fig.1) und 102 (Fig.2) etc. funktionsgemäß. Auf die Darstellung mechanischer Zusammenhänge wurde in Fig.2 verzichtet, da es hier im wesentlichen auf elektrische Funktionen ankommt.The reference numbers in FIG. 2 count upwards from 101 in order on the one hand to make clear distinctions between elements of both figures and on the other hand equivalences between elements of the same function. The central control circuit 1 (FIG. 1) and the central control circuit 101 (FIG. 2), the closing point switching means 5 (FIG. 1) and 105 (FIG. 2), the actuating elements 2 (FIG. 1) and 102 ( Fig.2) etc. functionally. The illustration of mechanical relationships has been omitted in FIG. 2, since electrical functions are essential here.

Die Zentralsteuerschaltung 101 betreibt über eine Leistungsstufe 110 reversierbare elektrische Stellelemente 102 im Verriegelungs- oder Entriegelungssinn. Sie ist dazu über mindestens zwei Steuerleitungen 108.1 und 108.2 aktivierbar, deren erste zur Übertragung eines Verriegelungssteuersignals von einem Schaltmittel 105 vorgesehen ist. Das als Wechseltaster mit neutraler Mittellage ausgebildete Schaltmittel 105 ist mit seinem beweglichen Kontakt an positives Potential der Bordspannungsquelle 111 angeschlossen und mechanisch mit einer - nur strichpunktiert angedeuteten - Schließstelle 113 verbunden. Über diese Schließstelle kann der bewegliche Kontakt wechselweise auf die erste Steuerleitung 108.1 oder auf eine Teil-Steuerleitung 108.2′ geschaltet werden.
Im ersten Fall wird die Zentralsteuerschaltung 101 unmittelbar aktiviert, die Stellelemente 102 im Verriegelungssinn zu betreiben.The central control circuit 101 operates reversible electrical actuating elements 102 in the locking or unlocking direction via a power stage 110. For this purpose, it can be activated via at least two control lines 108.1 and 108.2, the first of which is provided for transmitting a locking control signal from a switching means 105. The switching means 105, which is designed as a toggle switch with a neutral central position, is connected with its movable contact to the positive potential of the on-board voltage source 111 and is mechanically connected to a closing point 113 - only indicated by dash-dotted lines. Via this closing point, the movable contact can be switched alternately to the first control line 108.1 or to a partial control line 108.2 '.
In the first case, the central control circuit 101 is activated immediately to operate the actuating elements 102 in the locking direction.

Im zweiten Fall wird - in gleichem Ablauf wie zu Figur 1 bereits beschrieben - bei der mechanischen Entriegelung des der Schließstelle zugeordneten Verschlusses in dem Impulszähler 117 eine Zeitschaltung angestoßen, welche eine bestimmte Zeitspanne definiert.In the second case - in the same sequence as already described for FIG. 1 - when the lock associated with the locking point is mechanically unlocked, a time circuit is triggered in the pulse counter 117, which defines a specific time period.

Kommt innerhalb dieser Zeitspanne ein weiteres Schaltsignal über die Teil-Steuerleitung 108.2′, so gibt der Impulszähler 117 über die Steuerleitung 108.2 ein Entriegelungssteuersignal an die Zentralsteuerschaltung 101 ab, welche daraufhin die Stellelemente 102 im Entriegelungssinn betreibt und alle Verschlüsse zentral entriegelt.If a further switching signal comes over the partial control line 108.2 'within this period, the pulse counter 117 outputs an unlocking control signal to the central control circuit 101 via the control line 108.2, which then operates the actuating elements 102 in the unlocking direction and unlocks all locks centrally.

Kommt während der Zeitspanne kein zweites Schaltsignal, wird der Impulszähler selbsttätig rückgesetzt.If there is no second switching signal during the period, the pulse counter is automatically reset.

Kommt während der Zeitspanne ein Schaltsignal über die Steuerleitung 108.1 und den RESET-Eingang 119, wird der Impulszähler 117 ebenfalls rückgesetzt.If a switching signal comes over the control line 108.1 and the RESET input 119 during the time period, the pulse counter 117 is also reset.

Es ist bei beiden dargestellten ZVA selbstverständlich ohne weiteres möglich, die Schaltelemente - also den Impulszähler und gegebenenfalls den Logikbaustein - , welche die separate Entriegelung eines Verschlusses ermöglichen, in die jeweilige Zentralsteuerschaltung 1 bzw. 101 zu integrieren. Besonders einfach wird dies möglich, wenn die Zentralsteuerschaltung einen programmierbaren Mikroprozessor aufweist.In the two ZVA shown it is of course easily possible to integrate the switching elements - that is the pulse counter and possibly the logic module - which enable the separate unlocking of a lock into the respective central control circuit 1 or 101. This becomes particularly easy if the central control circuit has a programmable microprocessor.

Claims (9)

  1. Process for influencing a central locking system in a motor vehicle with the effect of a separate release of an individual closure, especially the driver-door closure, a central control circuit of the central locking system being activatable, at least from a locking station assigned to the same closure at least for its direct release, for the operation of actuating elements with the effect of the indirect release or locking of further closures, by means of release or locking control signals generated at least indirectly, during the actuation of this locking station in a releasing or a locking direction, by means of at least one electrical switch means coupled to this locking station, characterized in that, when the locking station is actuated once in the releasing direction, only the associated closure is released directly and no release control signal is generated, and in that the central control circuit is activated only when the same locking station is actuated several times, especially twice, within a predetermined time interval in the releasing direction and only when a corresponding number of switch signals of a switch means actuated each time during this actuation of the locking station is generated, by means of a release control signal which can be generated as a function of the number of switch signals.
  2. Process according to Claim 1, characterized in that the start of the predetermined time interval is defined by the first generation of the switch signal.
  3. Process according to Claim 1 or 2, characterized in that the switch signals are detected and counted by a counting device inserted between the switch means generating them and the central control circuit, and in that the counting device, after reaching a predetermined number of switch signals, generates the release control signal at least indirectly.
  4. Process according to Claim 3, characterized in that the counting device is reset to an initial state both after the expiry of the predetermined time interval and upon generation of a locking control signal from a switch means actuated in a locking direction during the actuation of the locking station, during the time interval.
  5. Central locking system with a central control circuit for the operation of closure actuating elements both in a releasing and a locking direction and with electrical switch elements for carrying out the process according to Claim 1, the central control circuit of which is activatable at least indirectly by locking and release control signals by means of at least one locking station assigned to a specific closure at least for its direct release, via a first switch means coupled to this locking station and, as a result of the actuation of the latter in a releasing or locking direction, switchable into corresponding switch positions, and via at least one control line which, in one of the switch positions of the first switch means, can be subjected to an electrical potential and which is intended for operating the closure actuating elements, characterized in that the switch elements are formed by
    - a second switch means (16) coupled to the locking station (13) and switched at least whenever the latter is actuated in a releasing direction,
    - a pulse counter (17) following the second switch means (16), and
    - a logic module (12) following the pulse counter (17) and inserted in the single control line (8', 8) between the first switch means (5) and the central control circuit (1),
    the pulse counter (17) transmitting to the logic module (12) an output signal activating the latter for the transmission of a release control signal to the central control circuit (1) via the control line (8), only in response to a number of switch signals of the second switch means (16) which is generated within a time interval predetermined in the said pulse counter (17) and fed to it, and the logic module (12) transmitting to the central control circuit (1) via the control line (8) a locking control signal with a polarity opposite the polarity of the release control signal, as early as in response to a switch signal of the first switch means (5) generated when the locking station is actuated once in a locking direction.
  6. Central locking system with a central control circuit for the operation of closure actuating elements in both a releasing and a locking direction and with electrical switch elements for carrying out the process according to Claim 1, the central control circuit of which is activatable at least indirectly by locking or release control signals by means of at least one locking station assigned to a specific closure at least for its direct release, via a switch means coupled to this locking station and co-actuated during each actuation of the locking station in both a releasing and a locking direction, and via a respective control line which can be subjected to an electrical potential according to the direction of actuation of the switch means, for the operation of the closure actuating elements, characterized in that the switch elements are formed, on the one hand, by the switch means (105) itself, coupled to the locking station, and, on the other hand, by a pulse counter (117) provided in the control line (108.2') subjected to an electrical potential when the locking station or the switch means (105) is actuated in the releasing direction, the said pulse counter (117) counting switch signals of the switch means (105) occurring in the control line (108.2') and transmitting a release control signal to the central control circuit (101) via the control line (108.2) only in response to a number of switch signals of the switch means (105) generated within a time interval predetermined in the said pulse counter (117) and fed to it.
  7. Central locking system according to Claim 5 or 6, characterized in that in the pulse counter (17; 117) there is a timing circuit which is triggerable by the first switch signal of the switch means (16; 105) connected to the pulse counter (17; 117) via a counting input (18; 118) and which presets the time interval in the pulse counter (17; 117).
  8. Central locking system according to Claim 5 or 6, characterized in that the pulse counter (17; 117) has a reset input (19; 119), and in that connected to the reset input (19; 119) is the switch means (5; 105) switchable by the locking station (13; 113) during the actuation of the latter in the locking direction, so that, when the locking station (13; 113) is actuated in the locking direction, the pulse counter (17; 117) is reset to an initial state.
  9. Central locking system according to Claim 7, characterized in that, after the expiry of the time interval, the timing circuit generates a signal resetting the pulse counter (17; 117) to an initial state.
EP19890114406 1988-09-08 1989-08-04 Method for separately unlocking a lock in a central vehicle-locking system, and central-locking system therefor Expired - Lifetime EP0357965B1 (en)

Applications Claiming Priority (2)

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DE19883830511 DE3830511C1 (en) 1988-09-08 1988-09-08
DE3830511 1988-09-08

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EP0357965A2 EP0357965A2 (en) 1990-03-14
EP0357965A3 EP0357965A3 (en) 1991-01-30
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US (1) US5030949A (en)
EP (1) EP0357965B1 (en)
JP (1) JPH0786292B2 (en)
DE (1) DE3830511C1 (en)
ES (1) ES2037353T3 (en)

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Publication number Publication date
JPH0786292B2 (en) 1995-09-20
ES2037353T3 (en) 1993-06-16
EP0357965A2 (en) 1990-03-14
DE3830511C1 (en) 1989-05-18
US5030949A (en) 1991-07-09
JPH02104881A (en) 1990-04-17
EP0357965A3 (en) 1991-01-30

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