EP2313584A1 - Motor vehicle door lock having a circuit arrangement - Google Patents

Motor vehicle door lock having a circuit arrangement

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Publication number
EP2313584A1
EP2313584A1 EP09776040A EP09776040A EP2313584A1 EP 2313584 A1 EP2313584 A1 EP 2313584A1 EP 09776040 A EP09776040 A EP 09776040A EP 09776040 A EP09776040 A EP 09776040A EP 2313584 A1 EP2313584 A1 EP 2313584A1
Authority
EP
European Patent Office
Prior art keywords
sensor
motor vehicle
door lock
vehicle door
current
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
EP09776040A
Other languages
German (de)
French (fr)
Other versions
EP2313584B1 (en
Inventor
Ulrich Nass
Thorsten Bendel
Mathias Ochtrop
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.)
Kiekert AG
Original Assignee
Kiekert AG
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Publication date
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Application filed by Kiekert AG filed Critical Kiekert AG
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Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B85/00—Details of vehicle locks not provided for in groups E05B77/00 - E05B83/00
    • E05B85/20—Bolts or detents
    • E05B85/24—Bolts rotating about an axis
    • E05B85/26—Cooperation between bolts and detents
    • 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
    • E05B81/64—Monitoring or sensing, e.g. by using switches or sensors
    • E05B81/66—Monitoring or sensing, e.g. by using switches or sensors the bolt position, i.e. the latching status
    • 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
    • Y10T292/00—Closure fasteners
    • Y10T292/08—Bolts
    • Y10T292/1043—Swinging
    • Y10T292/1044—Multiple head
    • Y10T292/1045—Operating means
    • Y10T292/1047—Closure
    • 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
    • Y10T292/00—Closure fasteners
    • Y10T292/08—Bolts
    • Y10T292/1043—Swinging
    • Y10T292/1075—Operating means
    • Y10T292/1082—Motor
    • 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
    • Y10T292/00—Closure fasteners
    • Y10T292/57—Operators with knobs or handles

Definitions

  • the invention relates to a motor vehicle door lock, with a circuit arrangement having at least one sensor and a connected control unit, wherein the sensor has at least two switching states which correspond to varying current at its output and are detected by the control unit.
  • Such a motor vehicle door lock is described by way of example in DE 196 43 947 A1.
  • a so-called Hall sensor chip used, so an electronic module, the output side outputs different levels of current, depending on whether the approach of an associated magnet is detected or not.
  • Hall sensor chips are used in many ways, for example, if the position of a rotary latch in the interior of an associated motor vehicle door lock is to be interrogated.
  • such a motor vehicle door lock is composed of the two essential components motor vehicle door lock and associated locking pin.
  • the catch If the locking bolt enters a locking mechanism of the catch and pawl inside the vehicle door lock when closing an associated vehicle door, the catch is moved: It first enters its prelocking and then in the Hauptsch Stammstellüng.
  • the respective positions can be interrogated with the aid of the Hall sensor chip or several such Hall sensor chips and can be clearly detected in the control unit. This is achieved by assigning the varying current strengths on the output side of the sensor or Hall sensor chips to each queried positions of the rotary latch in the example.
  • Hall sensor chips are associated with certain disadvantages. Thus, they exhibit a transient response, which can be attributed to the fact that the supply voltage of the Hall sensor chip is usually clocked.
  • Hall sensor chips Due to the transient response, the current signal output by the sensor or Hall sensor can only be reliably evaluated by the control unit with a delay. This is disadvantageous in view of the fast reaction times required nowadays.
  • Hall sensor chips are relatively expensive and may have malfunction. These can be attributed, for example, to the fact that the magnetic flux density of the associated magnet decreases due to external influences or due to aging, as a result of mechanical damage, etc., and consequently the at least two switching states to be registered can no longer be perfectly present or can be distinguished from one another.
  • the invention is based on the technical problem of further developing a generic motor vehicle door lock in such a way that, with improved reaction behavior, the constructional and thus financial expense is reduced compared with previous embodiments.
  • the two or at least two switching states of the sensor to different current include paths of a line network and / or different voltage states of an output line.
  • the query of a rotary latch may, for example, be about the positions "pre-closing reached" and "pre-closing not reached". Of course, this is only to be understood as an example.
  • a simple on / off switch or microswitch is advantageously used as the sensor.
  • this on / off switch or microswitch different current paths of a line network are now defined.
  • a supply voltage is connected to the line network.
  • the current intensity detected by the control unit and flowing through the line network changes.
  • the two switching states of the sensor can also belong to different voltage states of an output line.
  • These different voltage states of the output line can be realized by a voltage conversion, which is sensor-operated. So it is conceivable, for example, that the sensor respectively on / off switch on a (DCYDC) voltage converter operates or this and operated as a result thereof again flow through the output line different currents, which detected by the control unit and assigned to the respective switching states become. That is, in this case, only the voltage converter, the sensor and a (single) output line are sufficient.
  • the two switching states of the sensor correspond to different current paths of the line network, which are active depending on the specification of the sensor or on / off switch.
  • the current paths of the line network have different electrical resistances. If an essentially constant supply voltage is used, these different resistances automatically lead to the output side of the line network being subjected to varying current intensities, which in turn experience detection and assignment to the switching states in the control unit.
  • the sensor works in a similar way to the line network, which provides different current paths depending on the switching state of the sensor.
  • the current flows back from one pole of the supply voltage via the line network or the relevant current path through the control unit to the other pole of the supply voltage via these current paths.
  • a supply voltage is usually a DC voltage, in particular low-voltage DC voltage in the range of about 9 volts to 15 volts used, as it is generally present in the vehicle. Basically, however, higher supply voltages up to about 30 volts to 40 volts are conceivable.
  • the line network usually two current paths are realized, between which the sensor switches.
  • the first switching state of the sensor belongs to the first current path, while the second switching state of the sensor predetermines the second current path.
  • the line network has an output line with a first resistor for the first current path, to which a second resistor is connected as a shunt resistor. If the shunt resistor or the second resistor is used, two parallel lines are formed in the line network and make the second current path (consisting of the two lines) available. The sensor ensures that the second resistor or shunt resistor is connected to the output line with the first resistor.
  • the mode of operation or differentiation between the first current path with the first resistor and the second current path with the first and the second resistor has a similar structure and functions in a similar way to a current measuring device in which the individual measuring ranges are preselected via individual shunts.
  • the current flows only through the first resistor (first current path). If, on the other hand, the second resistor is connected as a shunt resistor to form the two parallel lines in the second switching state of the sensor, then the current flows via the first resistor and the second resistor, resulting in a reduction in the total resistance and an increase in the current intensity (with essentially constant supply voltage ) corresponds (second current path).
  • the supply voltage may work as an example with a duty cycle of 0.5 or 50%. This means that the switch-on time and the switch-off time each occupy approximately half of the total period of the supply voltage. It will worked regularly with a square wave voltage, although of course other voltage waveforms are included by the invention.
  • the senor and the line network form a structural unit. That is, the sensor and substantially the two resistors are generally provided as a component, which provides directly at the desired location in the interior of the motor vehicle door lock for the required query the operating conditions and thus the switching states.
  • the two resistors may be conventional carbon film resistors, but of course also those based on semiconductors are encompassed by the invention. Basically it can also be capacitive resistances.
  • the invention takes into account the special field of application within a motor vehicle in that depending on the applied supply voltage of the respective switching state of the sensor belongs to a current range of predetermined extent. That is, the control unit accepts and interprets a particular current range as belonging to a switching state.
  • the design is made such that the respective current intensity ranges belonging to the two switching states do not overlap, but rather are separated from one another by a current-free region.
  • This current-free region may correspond in terms of its extent to the respective current-strength region.
  • a motor vehicle door lock is provided with a special circuit arrangement, which relies on a reliable sensor usually in the form of an on / off switch.
  • the on / off switch is advantageously coupled to a line network which, on the output side, has at least two different currents or two different currents. provides different current ranges. These currents or current ranges can be easily detected by the control unit.
  • the circuit arrangement according to the invention with the sensor or microswitch differs from its input-side and output-side behavior practically not from that which is observed in the case of a Hall sensor chip. That is, the realized within the scope of the invention circuitry may substitute a Hall sensor chip.
  • FIG. 1 shows the motor vehicle door lock according to the invention schematically
  • Fig. 3 shows a temporal sequence of the supply voltage and the associated switching states of the sensor
  • a motor vehicle door lock is shown in its basic features. This is composed of a door lock 1, a catch 2 and a pawl 3 in the door lock 1 together. Furthermore, the basic construction includes a locking pin 4, which is merely indicated. With the help of a sensor 5 can now query different positions of the catch 2.
  • the senor 5 is connected via a line network 6 to a control unit 7.
  • the sensor 5 is presently designed as an on / off switch 5 and has two switching states, namely switch 5 "open” and switch 5 "closed”, as indicated in FIG. 2. These two switching states of the sensor 5 correspond to respectively varying current h, I2 at the output of the sensor 5 and at the output of the line network 6.
  • the control unit 7 can now detect these different currents h, I2 on the output side and assign operating states of the rotary latch 2, for example "Vorsch vinegar- reached "or” pre-closing not reached ".
  • the two switching states of the sensor respectively on / off switch 5 in the exemplary embodiment belong to different current paths 6a; 6a, 6b of the line network 6.
  • the two current paths 6a; 6a, 6b of the wiring network 6 different electrical resistances Ri; Ri + R 2 on. These different resistances Ri; Ri + R 2 cause at a substantially constant supply voltage U each varying and evaluated by the control unit 7 currents l-
  • the supply voltage U is clocked.
  • the supply voltage U has a duty cycle of approximately 0.5 or 50%.
  • the duty cycle gives the quotient of the switched-on time ⁇ n to the period T, ie ton / T.
  • I2 output side of the line network 6 are depending on whether the on / off switch 5 is closed or not, the current waveforms shown in Fig. 3 below over time t.
  • the on / off switch 5 is open and belongs to the lower current H.
  • the right part of the on / off switch 5 is closed and requires the higher current I 2.
  • FIG. 4 shows the time profile of the supply voltage U taking into account a variation of the supply voltage. Due to this variation of the supply voltage U (shown hatched) also results in a current range, as shown in the representation arranged underneath. This (likewise hatched) current range belongs to the respective switching state, on the one hand on / off switch 5 "open” (current h) and on the other hand on / off switch 5 “closed” (current I2). The representation is thus comparable to that in FIG. 3 below with the only difference that due to the varying supply voltage U, a respective current intensity range is now reproduced, which is (as a whole) interpreted by the control unit 7 as belonging to the respective switching state.
  • the supply voltage U may be located in the range between 9 volts and 15 volts.
  • the current intensity associated with the on / off switch 5 in its "closed” state may be between approximately 14 mA and 23 mA. If, by contrast, the on / off switch 5 is "open", then the output side of the

Abstract

The invention relates to a motor vehicle door lock, comprising a circuit arrangement having at least one sensor (5) and a connected control unit (7), wherein the sensor (5) has at least two switching states ("open" and "closed"), which correspond to varying current intensity (I1; I2) at the output of said sensor and are detected by the control unit (7), and the two switching states ("open" and "closed") of the sensor (5) belong to different current paths (6a; 6a, 6b) of a line network (6) and/or to different voltage states of an output line.

Description

Kraftfahrzeugtürverschluss mit einer Schaltungsanordnung Motor vehicle door lock with a circuit arrangement
Beschreibung:Description:
Die Erfindung betrifft einen Kraftfahrzeugtürverschluss, mit einer Schaltungsanordnung mit wenigstens einem Sensor und einer angeschlossenen Steuer- einheit, wobei der Sensor zumindest zwei Schaltzustände aufweist, die zu variierender Stromstärke an seinem Ausgang korrespondieren und von der Steuereinheit erfasst werden.The invention relates to a motor vehicle door lock, with a circuit arrangement having at least one sensor and a connected control unit, wherein the sensor has at least two switching states which correspond to varying current at its output and are detected by the control unit.
Ein solcher Kraftfahrzeugtürverschluss wird beispielhaft in der DE 196 43 947 A1 beschrieben. Hier kommt als Sensor ein sogenannter Hallsensor-Chip zum Einsatz, also ein Elektronikbaustein, der ausgangsseitig unterschiedliche Strompegel abgibt, und zwar je nachdem, ob die Annäherung eines zugehörigen Magneten erkannt wird oder nicht. Solche Hallsensor-Chips kommen vielfältig zum Einsatz, wenn beispielsweise die Stellung einer Drehfalle im Innern eines zugehörigen Kraftfahrzeugtürschlosses abgefragt werden soll. Tatsächlich setzt sich ein solcher Kraftfahrzeugtürverschluss aus den beiden wesentlichen Bestandteilen Kraftfahrzeugtürschloss und zugehörigem Schließbolzen zusammen.Such a motor vehicle door lock is described by way of example in DE 196 43 947 A1. Here comes as a sensor, a so-called Hall sensor chip used, so an electronic module, the output side outputs different levels of current, depending on whether the approach of an associated magnet is detected or not. Such Hall sensor chips are used in many ways, for example, if the position of a rotary latch in the interior of an associated motor vehicle door lock is to be interrogated. In fact, such a motor vehicle door lock is composed of the two essential components motor vehicle door lock and associated locking pin.
Sofern der Schließbolzen in ein Gesperre aus Drehfalle und Sperrklinke im Innern des Kraftfahrzeugtürschlosses beim Schließen einer zugehörigen Kraftfahrzeugtür einfährt, wird die Drehfalle bewegt: Sie gelangt zunächst in ihre Vorschließstellung und dann in die Hauptschließstellüng. Die jeweiligen Positionen können mit Hilfe des Hallsensor-Chips oder mehrerer solcher Hallsensor- Chips abgefragt und eindeutig in der Steuereinheit erfasst werden. Das gelingt durch Zuordnung der variierenden Stromstärken ausgangsseitig des Sensors bzw. Hallsensor-Chips zu den jeweils abzufragenden Stellungen der Drehfalle im Beispielfall. Derartige Hallsensor-Chips sind mit gewissen Nachteilen verbunden. So weisen sie ein Einschwingverhalten auf, welches sich darauf zurückführen lässt, dass die Versorgungsspannung des Hallsensor-Chips in der Regel getaktet wird. Durch das Einschwingverhalten kann das vom Sensor bzw. Hallsensor abge- gebene Stromsignal erst mit Verzögerung von der Steuereinheit zuverlässig ausgewertet werden. Das ist in Anbetracht der heutzutage geforderten schnellen Reaktionszeiten nachteilig. Hinzu kommt, dass Hallsensor-Chips relativ kostenaufwendig sind und Funktionsstörungen aufweisen können. Diese lassen sich beispielhaft darauf zurückführen, dass die magnetische Flussdichte des zugehörigen Magneten durch äußere Einflüsse oder alterungsbedingt, in Folge von mechanischer Beschädigung etc. abnimmt und folglich die wenigstens zwei zu registrierenden Schaltzustände nicht mehr einwandfrei vorliegen oder voneinander unterschieden werden können.If the locking bolt enters a locking mechanism of the catch and pawl inside the vehicle door lock when closing an associated vehicle door, the catch is moved: It first enters its prelocking and then in the Hauptschließstellüng. The respective positions can be interrogated with the aid of the Hall sensor chip or several such Hall sensor chips and can be clearly detected in the control unit. This is achieved by assigning the varying current strengths on the output side of the sensor or Hall sensor chips to each queried positions of the rotary latch in the example. Such Hall sensor chips are associated with certain disadvantages. Thus, they exhibit a transient response, which can be attributed to the fact that the supply voltage of the Hall sensor chip is usually clocked. Due to the transient response, the current signal output by the sensor or Hall sensor can only be reliably evaluated by the control unit with a delay. This is disadvantageous in view of the fast reaction times required nowadays. In addition, Hall sensor chips are relatively expensive and may have malfunction. These can be attributed, for example, to the fact that the magnetic flux density of the associated magnet decreases due to external influences or due to aging, as a result of mechanical damage, etc., and consequently the at least two switching states to be registered can no longer be perfectly present or can be distinguished from one another.
Zwar gibt es im Stand der Technik und aus anderem Zusammenhang vielfältige Ansätze dahingehend, mit Schaltern und Widerständen bei einer Verriegelungseinrichtung zu arbeiten (vgl. GB 2 309 481 ). Darüber hinaus ist es durch die JP 2001049952 bekannt, eine Antriebskontrolle für einen Motor zum Öffnen oder Schließen einer Kraftfahrzeugtür mit Schaltern und Widerständen zu ar- beiten. Überzeugende Vorschläge zur Lösung der vorgenannten Probleme ergeben sich hieraus aber nicht.While there are many approaches in the art and other contexts to operate with switches and resistors on a latch (see GB 2 309 481). Moreover, it is known from JP 2001049952 to operate a drive control for a motor for opening or closing a motor vehicle door with switches and resistors. However, convincing proposals for solving the aforementioned problems do not arise from this.
Der Erfindung liegt das technische Problem zugrunde, einen gattungsgemäßen Kraftfahrzeugtürverschluss so weiter zu entwickeln, dass bei verbessertem Re- aktionsverhalten der bauliche und folglich finanzielle Aufwand gegenüber bisherigen Ausführungsformen verringert ist.The invention is based on the technical problem of further developing a generic motor vehicle door lock in such a way that, with improved reaction behavior, the constructional and thus financial expense is reduced compared with previous embodiments.
Zur Lösung dieser technischen Problemstellung ist bei einem gattungsgemäßenTo solve this technical problem is in a generic
Kraftfahrzeugtürverschluss erfindungsgemäß vorgesehen, dass die beiden bzw. mindestens zwei Schaltzustände des Sensors zu unterschiedlichen Strom- pfaden eines Leitungsnetzwerkes und/oder unterschiedlichen Spannungszu- ständen einer Ausgangsleitung gehören.Motor vehicle door lock according to the invention provided that the two or at least two switching states of the sensor to different current include paths of a line network and / or different voltage states of an output line.
Selbstverständlich können mit Hilfe des Sensors auch mehr als zwei Schaltzu- stände bei Bedarf abgefragt werden. In der Regel reicht es jedoch aus, lediglich zwei Schaltzustände sicher zu erkennen, die zu jeweils unterschiedlicher Stromstärke ausgangsseitig des Sensors korrespondieren und so von der Steuereinheit sicher erfasst und jeweils abzufragenden Betriebszuständen zugeordnet werden können. Bei diesen Betriebszuständen bzw. Schaltzu- ständen mag es sich im Beispielfall der Abfrage einer Drehfalle um die Positionen "Vorschließstellung erreicht" und "Vorschließstellung nicht erreicht" handeln. Selbstverständlich ist dies nur beispielhaft zu verstehen.Of course, more than two switching states can be queried if necessary with the aid of the sensor. In general, however, it is sufficient to reliably detect only two switching states, which correspond to the output side of the sensor in each case with different current intensity and can thus be reliably detected by the control unit and assigned to respective operating states to be queried. In the case of these operating states or switching states, the query of a rotary latch may, for example, be about the positions "pre-closing reached" and "pre-closing not reached". Of course, this is only to be understood as an example.
Erfindungsgemäß kommt nun vorteilhaft als Sensor ein simpler Ein-/Ausschalter respektive Mikroschalter zum Einsatz. Mit Hilfe dieses Ein-/Ausschalters oder Mikroschalters werden nun unterschiedliche Strompfade eines Leitungsnetzwerkes definiert. An das Leitungsnetzwerk ist eine Versorgungsspannung angeschlossen. Je nachdem welcher Strompfad des Leitungsnetzwerkes aktiv ist (vorgegeben durch den Sensor respektive Ein-/Ausschalter) ändert sich die von der Steuereinheit erfasste und durch das Leitungsnetzwerk fließende Stromstärke.According to the invention, a simple on / off switch or microswitch is advantageously used as the sensor. With the aid of this on / off switch or microswitch, different current paths of a line network are now defined. A supply voltage is connected to the line network. Depending on which current path of the line network is active (specified by the sensor or on / off switch), the current intensity detected by the control unit and flowing through the line network changes.
Grundsätzlich können die beiden Schaltzustände des Sensors aber auch zu unterschiedlichen Spannungszuständen einer Ausgangsleitung gehören. Diese unterschiedlichen Spannungszustände der Ausgangsleitung lassen sich durch eine Spannungswandlung realisieren, die sensorbetätigt erfolgt. So ist es beispielsweise denkbar, dass der Sensor respektive Ein-/Ausschalter auf einen (DCYDC-)Spannungswandler arbeitet bzw. diesen betätigt und als Folge hiervon durch die Ausgangsleitung erneut unterschiedliche Stromstärken fließen, die von der Steuereinheit erfasst und den jeweiligen Schaltzuständen zugeordnet werden. Das heißt, in diesem Fall sind lediglich der Spannungswandler, der Sensor und eine (einzige) Ausgangsleitung ausreichend.In principle, however, the two switching states of the sensor can also belong to different voltage states of an output line. These different voltage states of the output line can be realized by a voltage conversion, which is sensor-operated. So it is conceivable, for example, that the sensor respectively on / off switch on a (DCYDC) voltage converter operates or this and operated as a result thereof again flow through the output line different currents, which detected by the control unit and assigned to the respective switching states become. That is, in this case, only the voltage converter, the sensor and a (single) output line are sufficient.
Im Regelfall korrespondieren die beiden Schaltzustände des Sensors jedoch zu unterschiedlichen Strompfaden des Leitungsnetzwerkes, die je nach Vorgabe des Sensors respektive Ein-/Ausschalters aktiv sind. In diesem Zusammenhang hat es sich bewährt, wenn die Strompfade des Leitungsnetzwerkes unterschiedliche elektrische Widerstände aufweisen. Sofern mit im Wesentlichen konstanter Versorgungsspannung gearbeitet wird, führen diese unterschied- liehen Widerstände automatisch dazu, dass ausgangsseitig des Leitungsnetzwerkes variierende Stromstärken verursacht werden, die wiederum in der Steuereinheit eine Erfassung und Zuordnung zu den Schaltzuständen erfahren.As a rule, however, the two switching states of the sensor correspond to different current paths of the line network, which are active depending on the specification of the sensor or on / off switch. In this context, it has proven useful if the current paths of the line network have different electrical resistances. If an essentially constant supply voltage is used, these different resistances automatically lead to the output side of the line network being subjected to varying current intensities, which in turn experience detection and assignment to the switching states in the control unit.
Das heißt, der Sensor arbeitet in entsprechendem Sinne auf das Leitungsnetz- werk, welches je nach Schaltzustand des Sensors unterschiedliche Strompfade zur Verfügung stellt. Über diese Strompfade fließt der Strom von einem Pol der Versorgungsspannung über das Leitungsnetzwerk bzw. den betreffenden Strompfad durch die Steuereinheit zum anderen Pol der Versorgungsspannung zurück. Denn als Versorgungsspannung kommt üblicherweise eine Gleich- Spannung, insbesondere Niedervoltgleichspannung im Bereich von ca. 9 Volt bis 15 Volt zum Einsatz, wie sie im Allgemeinen im Kraftfahrzeug vorliegt. Grundsätzlich sind aber auch höhere Versorgungsspannungen bis zu ca. 30 Volt bis 40 Volt denkbar.This means that the sensor works in a similar way to the line network, which provides different current paths depending on the switching state of the sensor. The current flows back from one pole of the supply voltage via the line network or the relevant current path through the control unit to the other pole of the supply voltage via these current paths. Because as a supply voltage is usually a DC voltage, in particular low-voltage DC voltage in the range of about 9 volts to 15 volts used, as it is generally present in the vehicle. Basically, however, higher supply voltages up to about 30 volts to 40 volts are conceivable.
Im Leitungsnetzwerk sind in der Regel zwei Strompfade realisiert, zwischen denen der Sensor umschaltet. Dabei gehört der erste Schaltzustand des Sensors zum ersten Strompfad, während der zweite Schaltzustand des Sensors den zweiten Strompfad vorgibt. Im Detail hat es sich als günstig erwiesen, wenn das Leitungsnetzwerk über eine Ausgangsleitung mit einem ersten Widerstand für den ersten Strompfad verfügt, zu welcher ein zweiter Widerstand als Nebenschlusswiderstand hinzugeschaltet wird. Kommt der Nebenschlusswiderstand bzw. der zweite Widerstand zum Einsatz, so werden zwei parallele Leitungen im Leitungsnetzwerk gebildet und stellen den zweiten Strompfad (bestehend aus den beiden Leitungen) zur Verfügung. Dabei sorgt der Sensor dafür, dass der zweite Widerstand bzw. Nebenschlusswiderstand zu der Ausgangsleitung mit dem ersten Widerstand hinzugeschaltet wird. Die Funktionsweise bzw. Unterscheidung zwischen dem ersten Strompfad mit dem ersten Widerstand und dem zweiten Strompfad mit dem ersten und dem zweiten Widerstand ist ähnlich aufgebaut und funktioniert vergleichbar wie bei einem Strommessgerät, bei welchem über einzelne Nebenschlusswiderstände (Shunts) die einzelnen Messbereiche vorgewählt werden.In the line network usually two current paths are realized, between which the sensor switches. In this case, the first switching state of the sensor belongs to the first current path, while the second switching state of the sensor predetermines the second current path. In detail, it has proved to be advantageous if the line network has an output line with a first resistor for the first current path, to which a second resistor is connected as a shunt resistor. If the shunt resistor or the second resistor is used, two parallel lines are formed in the line network and make the second current path (consisting of the two lines) available. The sensor ensures that the second resistor or shunt resistor is connected to the output line with the first resistor. The mode of operation or differentiation between the first current path with the first resistor and the second current path with the first and the second resistor has a similar structure and functions in a similar way to a current measuring device in which the individual measuring ranges are preselected via individual shunts.
Jedenfalls fließt im ersten Schaltzustand des Sensors der Strom lediglich durch den ersten Widerstand (erster Strompfad). Wird dagegen beim zweiten Schaltzustand des Sensors der zweite Widerstand als Nebenschlusswiderstand unter Bildung der beiden parallelen Leitungen hinzugeschaltet, so fließt der Strom über den ersten Widerstand und den zweiten Widerstand, was zu einer Verringerung des Gesamtwiderstands und einer Erhöhung der Stromstärke (bei im Wesentlichen gleichbleibender Versorgungsspannung) korrespondiert (zweiter Strompfad).In any case, in the first switching state of the sensor, the current flows only through the first resistor (first current path). If, on the other hand, the second resistor is connected as a shunt resistor to form the two parallel lines in the second switching state of the sensor, then the current flows via the first resistor and the second resistor, resulting in a reduction in the total resistance and an increase in the current intensity (with essentially constant supply voltage ) corresponds (second current path).
Um insgesamt den Ruhestrom durch das Leitungsnetzwerk zu reduzieren und eventuelle Überhitzungen zu vermeiden, wird im Allgemeinen mit einer getakteten Versorgungsspannung gearbeitet. Dabei mag die Versorgungsspannung beispielhaft mit einem Tastverhältnis von 0,5 bzw. 50 % arbeiten. Das heißt, die Einschaltzeit und die Ausschaltzeit nehmen in etwa jeweils die Hälfte der gesamten Periodendauer der Versorgungsspannung ein. Dabei wird regelmäßig mit einer Rechteckspannung gearbeitet, wenngleich natürlich auch andere Spannungsverläufe von der Erfindung umfasst werden.In order to reduce the total quiescent current through the line network and to avoid any overheating, is generally worked with a pulsed supply voltage. The supply voltage may work as an example with a duty cycle of 0.5 or 50%. This means that the switch-on time and the switch-off time each occupy approximately half of the total period of the supply voltage. It will worked regularly with a square wave voltage, although of course other voltage waveforms are included by the invention.
Um die Kosten möglichst gering zu halten und den Einbau zu vereinfachen, hat es sich bewährt, wenn der Sensor und das Leitungsnetzwerk eine Baueinheit bilden. Das heißt der Sensor und im Wesentlichen die beiden Widerstände werden im Allgemeinen als ein Bauteil zur Verfügung gestellt, welches unmittelbar an der gewünschten Stelle im Innern des Kraftfahrzeugtürschlosses für die erforderliche Abfrage der Betriebszustände und damit der Schaltzustände sorgt. Bei den beiden Widerständen mag es sich um herkömmliche Kohleschichtwiderstände handeln, wobei selbstverständlich aber auch solche auf Halbleiterbasis von der Erfindung umfasst werden. Grundsätzlich kann es sich auch um kapazitive Widerstände handeln.In order to keep the costs as low as possible and to simplify installation, it has proven useful if the sensor and the line network form a structural unit. That is, the sensor and substantially the two resistors are generally provided as a component, which provides directly at the desired location in the interior of the motor vehicle door lock for the required query the operating conditions and thus the switching states. The two resistors may be conventional carbon film resistors, but of course also those based on semiconductors are encompassed by the invention. Basically it can also be capacitive resistances.
Im Übrigen trägt die Erfindung dem speziellen Einsatzgebiet innerhalb eines Kraftfahrzeuges dadurch Rechnung, dass je nach anliegender Versorgungsspannung der jeweilige Schaltzustand des Sensors zu einem Stromstärkebereich vorgegebener Ausdehnung gehört. Das heißt, von der Steuereinheit wird ein bestimmter Stromstärkebereich als zu einem Schaltzustand gehörig akzeptiert und interpretiert. Dabei wird die Auslegung natürlich so getroffen, dass sich die zu den beiden Schaltzuständen gehörigen jeweiligen Stromstärkebereiche nicht überlappen, sondern vielmehr durch einen Stromstärkefreibereich voneinander separiert sind. Dieser Stromstärkefreibereich mag von seiner Ausdehnung her dem jeweiligen Stromstärkebereich entsprechen,Incidentally, the invention takes into account the special field of application within a motor vehicle in that depending on the applied supply voltage of the respective switching state of the sensor belongs to a current range of predetermined extent. That is, the control unit accepts and interprets a particular current range as belonging to a switching state. Of course, the design is made such that the respective current intensity ranges belonging to the two switching states do not overlap, but rather are separated from one another by a current-free region. This current-free region may correspond in terms of its extent to the respective current-strength region.
Im Ergebnis wird ein Kraftfahrzeugtürverschluss mit einer speziellen Schaltungsanordnung zur Verfügung gestellt, die auf einen zuverlässigen Sensor meistens in Gestalt eines Ein-/Ausschalters zurückgreift. Der Ein- /Ausschalter ist vorteilhaft mit einem Leitungsnetzwerk gekoppelt, das aus- gangsseitig wenigstens zwei verschiedene Stromstärken bzw. zwei ver- schiedene Stromstärkebereiche zur Verfügung stellt. Diese Stromstärken bzw. Stromstärkebereiche können unschwer von der Steuereinheit erfasst werden.As a result, a motor vehicle door lock is provided with a special circuit arrangement, which relies on a reliable sensor usually in the form of an on / off switch. The on / off switch is advantageously coupled to a line network which, on the output side, has at least two different currents or two different currents. provides different current ranges. These currents or current ranges can be easily detected by the control unit.
Als Folge hiervon unterscheidet sich die erfindungsgemäße Schaltungsanord- nung mit dem Sensor bzw. Mikroschalter von ihrem eingangsseitigen und aus- gangsseitigen Verhalten praktisch nicht von demjenigen, wie es bei einem Hallsensor-Chip beobachtet wird. Das heißt, die im Rahmen der Erfindung realisierte Schaltungsanordnung kann einen Hallsensor-Chip substituieren.As a consequence, the circuit arrangement according to the invention with the sensor or microswitch differs from its input-side and output-side behavior practically not from that which is observed in the case of a Hall sensor chip. That is, the realized within the scope of the invention circuitry may substitute a Hall sensor chip.
Das gelingt auf einfache und kostengünstige Art und Weise. Darüber hinaus hat die Taktung der Versorgungsspannung keinen Einfluss auf die Schalteigenschaften des Sensors bzw. Ein-/Ausschalters. Dieser weist nämlich kein Einschwingverhalten auf. Vielmehr liegen die unterschiedlichen Stromstärkebereiche je nach Schaltzustand vor, die sich lediglich aufgrund gegebenenfalls variierender Versorgungsspannung einstellen. Hierin sind die wesentlichen Vorteile zu sehen.This succeeds in a simple and cost-effective manner. In addition, the timing of the supply voltage has no effect on the switching characteristics of the sensor or on / off switch. This has namely no transient response. Rather, the different current intensity ranges are present depending on the switching state, which only occur due to possibly varying supply voltage. Here are the main benefits.
Im Folgenden wird die Erfindung anhand einer lediglich ein Ausführungsbeispiel darstellenden Zeichnung näher erläutert; es zeigen:In the following the invention will be explained in more detail with reference to a drawing showing only one exemplary embodiment; show it:
Fig. 1 den erfindungsgemäßen Kraftfahrzeugtürverschluss schematisch,1 shows the motor vehicle door lock according to the invention schematically,
Fig. 2 das Leitungsnetzwerk in einer Übersicht,2 shows the line network in an overview,
Fig. 3 eine zeitliche Abfolge der Versorgungsspannung und die zugehörigen Schaltzustände des Sensors sowie schließlichFig. 3 shows a temporal sequence of the supply voltage and the associated switching states of the sensor and finally
Fig. 4 die unterschiedlichen Schaltzustände unter Berücksichtigung jeweiligerFig. 4, the different switching states taking into account respective
Stromstärkebereiche. In der Fig. 1 ist ein Kraftfahrzeugtürverschluss in seinen Grundzügen dargestellt. Dieser setzt sich aus einem Türschloss 1 , einer Drehfalle 2 und einer Sperrklinke 3 in dem Türschloss 1 zusammen. Ferner gehört zum grundsätzlichen Aufbau ein Schließbolzen 4, der lediglich angedeutet ist. Mit Hilfe eines Sensors 5 lassen sich nun verschiedene Stellungen der Drehfalle 2 abfragen.Current ranges. In Fig. 1, a motor vehicle door lock is shown in its basic features. This is composed of a door lock 1, a catch 2 and a pawl 3 in the door lock 1 together. Furthermore, the basic construction includes a locking pin 4, which is merely indicated. With the help of a sensor 5 can now query different positions of the catch 2.
Dazu ist der Sensor 5 über ein Leitungsnetzwerk 6 mit einer Steuereinheit 7 verbunden. Der Sensor 5 ist vorliegend als Ein-/Ausschalter 5 ausgebildet und weist zwei Schaltzustände auf, nämlich Schalter 5 "offen" und Schalter 5 "geschlossen", wie die Fig. 2 andeutet. Diese beiden Schaltzustände des Sensors 5 korrespondieren zu jeweils variierender Stromstärke h , I2 am Ausgang des Sensors 5 respektive am Ausgang des Leitungsnetzwerkes 6. Die Steuereinheit 7 kann nun diese unterschiedlichen Stromstärken h, I2 ausgangsseitig erfassen und Betriebszuständen der Drehfalle 2 zuordnen, beispielsweise "Vorschließ- stellung erreicht" oder "Vorschließstellung nicht erreicht".For this purpose, the sensor 5 is connected via a line network 6 to a control unit 7. The sensor 5 is presently designed as an on / off switch 5 and has two switching states, namely switch 5 "open" and switch 5 "closed", as indicated in FIG. 2. These two switching states of the sensor 5 correspond to respectively varying current h, I2 at the output of the sensor 5 and at the output of the line network 6. The control unit 7 can now detect these different currents h, I2 on the output side and assign operating states of the rotary latch 2, for example "Vorschließ- reached "or" pre-closing not reached ".
Erfindungsgemäß gehören die beiden Schaltzustände des Sensors respektive Ein-/Ausschalters 5 im Rahmen des Ausführungsbeispiels zu unterschiedlichen Strompfaden 6a; 6a, 6b des Leitungsnetzwerkes 6. Dabei weisen die beiden Strompfade 6a; 6a, 6b des Leitungsnetzwerkes 6 unterschiedliche elektrische Widerstände Ri; Ri + R2 auf. Diese unterschiedlichen Widerstände R-i; Ri + R2 verursachen bei im Wesentlichen konstanter Versorgungsspannung U die jeweils variierenden und von der Steuereinheit 7 ausgewerteten Stromstärken l-| , I2.According to the invention, the two switching states of the sensor respectively on / off switch 5 in the exemplary embodiment belong to different current paths 6a; 6a, 6b of the line network 6. In this case, the two current paths 6a; 6a, 6b of the wiring network 6 different electrical resistances Ri; Ri + R 2 on. These different resistances Ri; Ri + R 2 cause at a substantially constant supply voltage U each varying and evaluated by the control unit 7 currents l- | , I2.
Tatsächlich sind vorliegend zwei Strompfade 6a; 6a, 6b realisiert, zwischen denen der Sensor respektive Ein-/Ausschalter 5 umschaltet. Bei diesen Strompfaden 6a; 6a, 6b handelt es sich um eine Ausgangsleitung 6a mit dem ersten Widerstand Ri für den ersten Strompfad 6a. Zu diesem ersten Strompfad 6a wird mit Hilfe des Sensors respektive Eirv/Ausschalters 5 der zweite Widerstand R2 als Nebenschlusswiderstand hinzugeschaltet. Dadurch fließt der Strom nicht nur durch die Ausgangsleitung 6a, sondern zusätzlich durch eine Parallelleitung 6b mit dem zweiten Widerstand R2. Beide Leitungen 6a, 6b bilden den zweiten Strompfad 6a, 6b (vgl. Fig. 2).In fact, in the present case two current paths 6a; 6a, 6b realized between which the sensor respectively on / off switch 5 switches. In these current paths 6a; 6a, 6b is an output line 6a with the first resistor Ri for the first current path 6a. To this first current path 6a is connected with the help of the sensor respectively Eirv / switch 5, the second resistor R 2 as a shunt resistor. As a result, the current flows not only through the output line 6a, but additionally through a parallel line 6b with the second resistor R 2 . Both lines 6a, 6b form the second current path 6a, 6b (see Fig. 2).
Anhand der Fig. 3 oben erkennt man, dass die Versorgungsspannung U getaktet vorliegt. Im Ausführungsbeispiel verfügt die Versorgungsspannung U über ein Tastverhältnis von in etwa 0,5 bzw. 50 %. Das Tastverhältnis gibt da- bei den Quotienten der eingeschalteten Zeit ^n zur Periodendauer T, das heißt ton/T wieder. Gleiches gilt vorliegend für das Verhältnis der ausgeschalteten Zeit toff zur Periodendauer T. In Folge der unterschiedlichen Stromstärken l-| , I2 ausgangsseitig des Leitungsnetzwerkes 6 stellen sich je nach dem, ob der Ein- /Ausschalter 5 geschlossen ist oder nicht, die in der Fig. 3 unten dargestellten Stromverläufe über die Zeit t ein. So ist im linken Teil der Fig. 3 unten der Ein- /Ausschalter 5 offen und gehört zur geringeren Stromstärke H. Im rechten Teil ist der Ein-/Ausschalter 5 geschlossen und bedingt die höhere Stromstärke I2.3 shows that the supply voltage U is clocked. In the exemplary embodiment, the supply voltage U has a duty cycle of approximately 0.5 or 50%. The duty cycle gives the quotient of the switched-on time ^ n to the period T, ie ton / T. The same applies in the present case to the ratio of the switched-off time t o ff to the period T. In consequence of the different current intensities l- | , I2 output side of the line network 6 are depending on whether the on / off switch 5 is closed or not, the current waveforms shown in Fig. 3 below over time t. Thus, in the left part of Fig. 3 below the on / off switch 5 is open and belongs to the lower current H. In the right part of the on / off switch 5 is closed and requires the higher current I 2.
In der Fig. 4 oben ist schließlich der zeitliche Verlauf der Versorgungsspannung U unter Berücksichtigung einer Variation der Versorgungsspannung dargestellt. Aufgrund dieser Variation der Versorgungsspannung U (schraffiert dargestellt) ergibt sich auch ein Stromstärkebereich, wie er in der darunter angeordneten Darstellung gezeigt ist. Dieser (ebenfalls schraffierte) Stromstärkebereich gehört zum jeweiligen Schaltzustand, einerseits Ein-/Ausschalter 5 "offen" (Strom- stärke h) und andererseits Ein-/Ausschalter 5 "geschlossen" (Stromstärke I2). Die Darstellung ist also vergleichbar zu derjenigen in der Fig. 3 unten mit dem einzigen Unterschied, dass nun aufgrund der variierenden Versorgungsspannung U ein jeweiliger Stromstärkebereich wiedergegeben ist, der insgesamt von der Steuereinheit 7 (noch) als zum jeweiligen Schaltzustand ge- hörig interpretiert wird. Zwischen den beiden Stromstärkebereichen l-|, I2, welche zu den Schaltzuständen "offen" und "geschlossen" gehören, erstreckt sich ein sogenannter Stromstärkefreibereich 8, welcher von seiner Ausdehnung her im Wesentlichen dem jeweiligen Stromstärkebereich entspricht und so eine definitive Unterscheidung zwischen den Schaltzuständen "offen" und "geschlossen" in der Steuereinheit 7 ermöglicht.Finally, FIG. 4 shows the time profile of the supply voltage U taking into account a variation of the supply voltage. Due to this variation of the supply voltage U (shown hatched) also results in a current range, as shown in the representation arranged underneath. This (likewise hatched) current range belongs to the respective switching state, on the one hand on / off switch 5 "open" (current h) and on the other hand on / off switch 5 "closed" (current I2). The representation is thus comparable to that in FIG. 3 below with the only difference that due to the varying supply voltage U, a respective current intensity range is now reproduced, which is (as a whole) interpreted by the control unit 7 as belonging to the respective switching state. Between the two current intensity ranges I1, I2, which belong to the switching states "open" and "closed", extends a so-called current-strength free region 8, which essentially corresponds in terms of its extent to the respective current-strength region and thus a definite distinction between the switching states " open "and" closed "in the control unit 7 allows.
Vorliegend mag die Versorgungsspannung U im Bereich zwischen 9 Volt und 15 Volt angesiedelt sein. Die zum Ein-/Ausschalter 5 gehörige Stromstärke in dessen Zustand "geschlossen" mag zwischen ca. 14 mA und 23 mA liegen. Ist dagegen der Ein-/Ausschalter 5 "offen", so stellt sich ausgangsseitig desIn the present case, the supply voltage U may be located in the range between 9 volts and 15 volts. The current intensity associated with the on / off switch 5 in its "closed" state may be between approximately 14 mA and 23 mA. If, by contrast, the on / off switch 5 is "open", then the output side of the
Leitungsnetzwerkes 6 eine Stromstärke im Bereich zwischen ca. 3 mA und 5 mA ein. Folgerichtig erstreckt sich der Stromstärkefreibereich 8 im Bereich zwi- sehen ca. 5 mA und 14 mA. Hierbei handelt es sich selbstverständlich nur umLine network 6 a current in the range between about 3 mA and 5 mA a. Consequently, the Stromstärkefreibereich 8 in the range between see about 5 mA and 14 mA. Of course this is only about
Beispielwerte. Example values.

Claims

Patentansprüche: claims:
1. Kraftfahrzeugtürverschluss, mit einer Schaltungsanordnung mit wenigstens einem Sensor (5) und einer angeschlossenen Steuereinheit (7), wobei der Sen- sor (5) zumindest zwei Schaltzustände ("offen" und "geschlossen") aufweist, die zu variierender Stromstärke (h; I2) an seinem Ausgang korrespondieren und von der Steuereinheit (7) erfasst werden, d a d u r c h g e k e n n z e i c h n e t, dass die beiden Schaltzustände ("offen" und "geschlossen") des Sensors (5) zu unterschiedlichen Strompfaden (6a; 6a, 6b) eines Leitungsnetzwerkes (6) und/oder zu unterschiedlichen Spannungszuständen einer Ausgangsleitung gehören.1. Motor vehicle door lock, with a circuit arrangement having at least one sensor (5) and a connected control unit (7), wherein the sensor (5) sors at least two switching states ("open" and "closed"), the varying current intensity (h I 2 ) correspond to its output and are detected by the control unit (7), characterized in that the two switching states ("open" and "closed") of the sensor (5) to different current paths (6a, 6a, 6b) of a line network (6) and / or belong to different voltage states of an output line.
2. Kraftfahrzeugtürverschluss nach Anspruch 1 , dadurch gekennzeichnet, dass die unterschiedlichen Spannungszustände der Ausgangsleitung durch eine sensorbetätigte Spannungswandlung erzeugt werden.2. Motor vehicle door lock according to claim 1, characterized in that the different voltage states of the output line are generated by a sensor-operated voltage conversion.
3. Kraftfahrzeugtürverschluss nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Strompfade (6a; 6a, 6b) des Leitungsnetzwerkes (6) unterschiedlich elektrische Widerstände (R-i; Ri + R2) aufweisen, die bei im Wesent- liehen konstanter Versorgungsspannung (U) die variierende Stromstärke (I1, I2) verursachen.3. Motor vehicle door lock according to claim 1 or 2, characterized in that the current paths (6a, 6a, 6b) of the line network (6) have different electrical resistances (Ri; Ri + R 2 ), which are substantially constant supply voltage (U ) cause the varying current (I 1 , I 2 ).
4. Kraftfahrzeugtürverschluss nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass im Wesentlichen zwei Strompfade (6a, 6b) realisiert sind, zwischen denen der Sensor (5) umschaltet.4. Motor vehicle door lock according to one of claims 1 to 3, characterized in that substantially two current paths (6a, 6b) are realized, between which the sensor (5) switches.
5. Kraftfahrzeugtürverschluss nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass eine Ausgangsleitung (6a) mit einem ersten Widerstand (R1) für einen ersten Strompfad (6a) realisiert ist, zu welcher ein zweiter Wider- stand (R2) als Nebenschlusswiderstand mittels des Sensors (5) unter Bildung zweier paralleler Leitungen als zweitem Strompfad (6a, 6b) hinzugeschaltet wird.5. Motor vehicle door lock according to one of claims 1 to 4, characterized in that an output line (6a) with a first resistor (R 1 ) for a first current path (6a) is realized, to which a second resistor (R2) as a shunt resistor by means of the sensor (5) under formation two parallel lines as the second current path (6a, 6b) is connected.
6. Kraftfahrzeugtürverschluss nach einem der Ansprüche 1 bis 5, dadurch ge- kennzeichnet, dass das Leitungsnetzwerk (6) eine getaktete Versorgungsspannung (U) aufweist.6. Motor vehicle door lock according to one of claims 1 to 5, character- ized in that the line network (6) has a clocked supply voltage (U).
7. Kraftfahrzeugtürverschluss nach Anspruch 6, dadurch gekennzeichnet, dass die Versorgungsspannung (U) mit einem Tastverhältnis von in etwa 0,5 ausge- rüstet ist.7. Motor vehicle door lock according to claim 6, characterized in that the supply voltage (U) is equipped with a duty cycle of about 0.5.
8. Kraftfahrzeugtürverschluss nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass der Sensor (5) und das Leitungsnetzwerk (6) eine Baueinheit (5, 6) bilden.8. Motor vehicle door lock according to one of claims 1 to 7, characterized in that the sensor (5) and the line network (6) form a structural unit (5, 6).
9. Kraftfahrzeugtürverschluss nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, dass je nach anliegender Versorgungsspannung (U) der jeweilige Schaltzustand ("offen"; "geschlossen") des Sensors (5) zu einem Stromstärkebereich vorgegebener Ausdehnung gehört.9. Motor vehicle door lock according to one of claims 1 to 8, characterized in that depending on the applied supply voltage (U) of the respective switching state ("open", "closed") of the sensor (5) belongs to a current intensity range of predetermined extent.
10. Kraftfahrzeugtürverschluss nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, dass der Sensor (5) als Ein-/Ausschalter (5), insbesondere Mikroschalter, ausgebildet ist. 10. Motor vehicle door lock according to one of claims 1 to 9, characterized in that the sensor (5) as an on / off switch (5), in particular micro-switch is formed.
EP20090776040 2008-08-05 2009-08-03 Motor vehicle door lock having a circuit arrangement Revoked EP2313584B1 (en)

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DE200820010423 DE202008010423U1 (en) 2008-08-05 2008-08-05 Motor vehicle door lock with a circuit arrangement
PCT/DE2009/001073 WO2010015236A1 (en) 2008-08-05 2009-08-03 Motor vehicle door lock having a circuit arrangement

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EP2313584A1 true EP2313584A1 (en) 2011-04-27
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US (1) US8482394B2 (en)
EP (1) EP2313584B1 (en)
JP (1) JP2011530026A (en)
CN (1) CN102119255B (en)
DE (1) DE202008010423U1 (en)
WO (1) WO2010015236A1 (en)

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CN102119255B (en) 2014-09-17
US8482394B2 (en) 2013-07-09
EP2313584B1 (en) 2014-10-29
US20110187519A1 (en) 2011-08-04
JP2011530026A (en) 2011-12-15
CN102119255A (en) 2011-07-06
WO2010015236A1 (en) 2010-02-11
DE202008010423U1 (en) 2009-12-17

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