EP2877656B1 - Serrure de portière de véhicule automobile - Google Patents

Serrure de portière de véhicule automobile Download PDF

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Publication number
EP2877656B1
EP2877656B1 EP13745566.3A EP13745566A EP2877656B1 EP 2877656 B1 EP2877656 B1 EP 2877656B1 EP 13745566 A EP13745566 A EP 13745566A EP 2877656 B1 EP2877656 B1 EP 2877656B1
Authority
EP
European Patent Office
Prior art keywords
control unit
lever chain
electromotor
electric motor
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.)
Active
Application number
EP13745566.3A
Other languages
German (de)
English (en)
Other versions
EP2877656A2 (fr
Inventor
Thorsten Bendel
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
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kiekert AG filed Critical Kiekert AG
Publication of EP2877656A2 publication Critical patent/EP2877656A2/fr
Application granted granted Critical
Publication of EP2877656B1 publication Critical patent/EP2877656B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B81/00—Power-actuated vehicle locks
    • E05B81/12—Power-actuated vehicle locks characterised by the function or purpose of the powered actuators
    • E05B81/16—Power-actuated vehicle locks characterised by the function or purpose of the powered actuators operating on locking elements for locking or unlocking action
    • 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
    • E05B81/56—Control of actuators
    • E05B81/62—Control of actuators for opening or closing of a circuit depending on electrical parameters, e.g. increase of motor current
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B81/00—Power-actuated vehicle locks
    • E05B81/02—Power-actuated vehicle locks characterised by the type of actuators used
    • E05B81/04—Electrical
    • E05B81/06—Electrical using rotary motors
    • 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

Definitions

  • the invention relates to a motor vehicle door lock, with a motor-operated lever chain, and with an electric motor with associated control unit, wherein the electric motor converts the lever chain in a predetermined position or applied from the predetermined position, and wherein the control unit uses data of the electric motor for its application, and the control unit evaluates gradients of performance data of the electric motor for position adjustment of the lever chain.
  • a control is applied by an electric motor.
  • the start of the control against stop surfaces of a fork receptacle is detected by an associated increased power consumption or a timer and the electric motor drive is turned off as a result thereof.
  • the EP 1 371 802 A2 also discloses a motor vehicle door closure having an electromechanical central locking drive and a central locking element driven therefrom.
  • the central locking element is driven by an electric motor, which in turn is controlled by a control unit to a desired position, such as the locking position.
  • the control unit is provided with information about a motor state of the electric motor via a motor condition sensor, so that, for example, the speed of the electric motor can be regulated.
  • the WO 2008/101928 A1 discloses an apparatus and method for unlocking a lock by using power monitoring.
  • the consumed current of an electric motor is recorded by means of a method, depending on the recorded power consumption, the lock can be unlocked or locked.
  • the method considers it to compare the recorded power consumption with already stored power consumption.
  • the DE 102 43 893 A1 describes an actuator for example, a door lock with an electric motor, an actuator and a restoring device, the electric motor to be operated with reduced energy use.
  • the electric motor drives the actuator against the force of the return device to a stop in a blocking position.
  • an adjustable delay time for an electric motor supplying electric power is just kept so low that the blocking position of the actuating element can still be achieved.
  • the invention is based on the technical problem of further developing such a motor vehicle door lock so that a flawless position detection succeeds with a structurally simple construction.
  • a generic motor vehicle door lock in the invention is characterized in that the control unit, the electric motor after an activation command first applied in its opposite direction to verify the current position of the lever chain as the starting point of the desired movement.
  • the control unit in a generic motor vehicle door lock or to evaluate such a position of the above described construction also position signals of the electric motor for position adjustment of the lever chain.
  • the predetermined at least one position of the lever chain corresponds to a mechanical stop position. Since the lever chain is advantageously a locking lever chain and / or an actuating lever chain, the predetermined position corresponds to a locking lever chain, for example to its positions “locked” or "unlocked”.
  • the one or more predetermined positions may correspond to, for example, the operating positions "operated” or “not operated”. These all positions or positions of the respective lever chains correspond to a corresponding mechanical stop position as a rule. That is, once the relevant and previously indicated position, for example, “unlocked”, “locked”, “actuated” or “not operated” is reached, the lever chain in question in the confirmation direction can not continue to apply, because this is an associated attack prevented. This explains the realized mechanical stop position. - A renewed action on the electric motor must therefore correspond to the fact that the lever chain in question in the opposite direction, starting from the predetermined position experiences an act of loading.
  • control unit In order to sense the predetermined position of the lever chain or the respective mechanical stop position, the control unit in the context of the invention evaluates gradients of performance data of the electric motor. In this way, the position adjustment of the lever chain is determined, namely in the present case the achievement of the predetermined position or the associated mechanical stop position.
  • the slope is determined as a rule, for example, the current increase per unit time of the current for acting on the electric motor.
  • a voltage change per unit time can be detected and evaluated in order to detect the achievement of the predetermined position by the lever chain.
  • a current-dependent voltage change can also be evaluated by the control unit. That is, it is the derivative of the voltage after the current detected by the control unit and used for the application or non-loading of the electric motor.
  • the procedure is such that the time profile of the electric current is evaluated to act on the electric motor.
  • the control unit has a differentiator, which can be implemented hardware and / or software. With its help, the current change per unit time can be determined. If certain gradients are exceeded at this point, this is interpreted as reaching the predetermined position by the lever chain in the control unit. That is, the exceeding of a certain predetermined slope in the example case corresponds to the sensor signal, which for example belongs to the position "unlocked” or "locked”.
  • the control unit thus generally evaluates temporal current / voltage characteristics for driving the electric motor. For this purpose, the control unit differentiates the respective current / voltage curves in time or in time. A certain increase in the time of the current or the voltage at the electric motor is identified as a result of reaching the predetermined position.
  • the invention regularly proceeds in such a way that the control unit initially acts on the electric motor in its opposite direction following an activation command.
  • the current position of the lever chain as the starting point for the desired movement can be determined or verified. If, for example, the locking lever chain is "locked” in its position and an activation command is given in the sense of "unlocking", then the electric motor is initially charged in its opposite direction. This means that the electric motor in the example case - despite the already adopted position "locked” - again applied in the direction "lock".
  • the invention is also a method for operating a motor vehicle door lock, as described in claim 8 ff. Closer.
  • a motor vehicle door lock as described in claim 8 ff. Closer.
  • this can be controlled wirelessly via a remote control.
  • a wired control of the electric motor via, for example, a key is possible.
  • the wireless control of the electric motor is typically realized via a radio remote control.
  • the wired loading by means of the key can be done by the key is inserted into a lock cylinder and rotated accordingly herein, for example, to realize the functional position "locked".
  • a motor vehicle door lock is made available, which is initially very simple and inexpensive. Because individual predefined positions of the inevitably realized lever chain can be queried and evaluated, as it were, without a sensor.
  • the control unit accesses gradients of performance data of the electric motor acting on the lever chain and evaluates these to the effect that the position of the lever chain can be deduced.
  • the invention is based on the recognition that a certain predetermined position of the relevant lever chain corresponds to the fact that the lever chain is mechanically blocked in at least one direction of movement. That is, the predetermined position corresponds to the mechanical stop position in the respective direction of movement.
  • the control unit concludes from the associated gradient of the current absorbed by the electric motor that the predetermined position or mechanical stop position has been reached in the direction of movement of the lever chain that has been introduced.
  • the invention proceeds in such a way that the control unit initially acts on the electric motor in its opposite direction following such an activation command.
  • the electric motor is thus acted upon in the mechanical stop position so that it first - again - moves against the stop, which in turn is associated with a strong increase in time current in the example.
  • This can be evaluated and interpreted by the control unit to the effect that the lever chain as a starting point for their desired movement, in fact, the position assumed by the control unit based on the history unchanged. Proceeding from this, then the electric motor is acted upon in the opposite direction and the lever chain moves according to the desired activation command.
  • control unit additionally evaluates position signals of the electric motor for position adjustment of the lever chain.
  • position signals of the electric motor can be present for example in the form of a step control.
  • stepper motors according to the invention are relatively expensive, it will be in favor of cost-optimized production of the motor vehicle door lock according to the invention on this regularly waived, although such stepper motors are of course included in the invention.
  • a motor vehicle door lock which has a not explicitly shown locking mechanism of catch and pawl.
  • On the locking mechanism or the pawl operates a release lever 1, which in the Fig. 1 is shown only in section and connected to a central locking lever 2.
  • the central locking lever 2 is coupled in the exemplary embodiment with an inner locking lever 3, on which in turn an inner locking element or an inner locking rod 4 operates.
  • an outer locking with associated outer locking lever, outer locking element and indicated key 5 with associated lock cylinder 6 can also be realized at this point.
  • the central locking element 2 is acted upon by a control element 7 in the form of a driven pulley with two eccentric control pins 8.
  • the control pins 8 engage, depending on the direction of rotation D of the control element or the driven pulley 7, in a fork receptacle 9 of the central locking element 2.
  • the control element 7 or the driven pulley 7 is acted on by means of an electric motor 10, which in turn is controlled by a control unit 11.
  • a lever chain or locking lever chain 2, 3, 4, 5, 6 is realized, which is composed of the central locking lever 2, the inner locking lever 3, the inner locking element 4 and finally the outer lock in the form of the key 5 including lock cylinder 6.
  • the lever chain or locking lever chain 2, 3, 4, 5, 6 is transferred by the electric motor 10 in a plurality of predetermined positions, for example, in the positions "locked” or "unlocked”.
  • the position "locked” is shown. This corresponds in the present case to that in the Fig. 1 right control pin 8 is moved against a stop surface, thus the predetermined position "locked” the locking lever chain 2 to 6 corresponds to an associated mechanical stop position.
  • control unit 11 In order to now set the "unlocked" position of the motor vehicle door lock, first the control unit 11 must be acted upon accordingly. This is done in the present case with the aid of a merely indicated radio remote control unit 12. As a result, the control unit 11 ensures that the in the Fig. 1 left control pin 8 dips into the fork receptacle 9 and the central locking lever 2 is pivoted clockwise about its axis 13 until in the Fig. 1 right control pin 8 comes to rest on the left stop surface of the fork seat 9, as described in the basic operation in detail DE 44 47 687 C2 which is expressly referred to in this context.
  • this current profile or data of the electric motor 10 is now used when it is acted upon respectively to its admission. This is ensured by the electric motor 10 acting on the control unit 11. Actually, the control unit 11 evaluates the relevant data.
  • control unit 11 evaluates gradients of performance data of the electric motor 10 for position adjustment of the lever chains 2 to 6. Transferred to the concrete individual case, this means that the control unit 11 converts gradients of the current I received by the electric motor 11 to the position adjustment of the lever chain 2 to 6.
  • the gradient of the absorbed current I in the exemplary embodiment is in each case the slope of the absorbed current I on the part of the electric motor 10, specifically per time unit t. In essence, therefore, the current profile I (t) is differentiated after the time t, ie the differential quotient dl dt educated. This is ensured by the control unit 11.
  • the predetermined position of the lever chain 2 to 6 corresponds to a respective mechanical stop position, it is observed upon reaching this mechanical stop position that the current I picked up by the electric motor 11 rises sharply over the time t.
  • courses of the current I over the time t occur, as they are described in FIGS Fig. 2A and 2B are shown.
  • the control unit 11 ensures that the electric motor 10 is no longer energized.
  • the minimum current I min corresponds to the fact that the electric motor 10 requires a minimum current supply in order to be able to act on the lever chain 2 to 6 at all and to overcome any frictional forces.
  • the gradient S is shown for different temporal current curves of the current absorbed by the electric motor 10.
  • the desired mechanical stop position may include gradients of 10 amps per second. That depends on the design of the associated electric motor 10. Otherwise, ie when falling below the slope S (shown in phantom), the electric motor 10 is energized unchanged.

Landscapes

  • Lock And Its Accessories (AREA)

Claims (9)

  1. Serrure de voiture, dotée d'une chaîne à levier (2 à 6) pouvant être alimentée par moteur, et d'un moteur électrique (10) doté de l'unité de commande (11) correspondante, à savoir que le moteur électrique (10) met la chaîne à levier (2 à 6) dans une position imposée ou l'alimente depuis la position imposée, et à savoir que l'unité de commande (11) utilise les données du moteur électrique (10) pour son alimentation, et que l'unité de commande (11) analyse les gradients des données techniques du moteur électrique (10) pour définir la position de la chaîne à levier (2 à 6), caractérisée en ce que l'unité de commande (11) alimente dans un premier temps, suite à un ordre d'actionnement, le moteur électrique (10) dans le sens qui lui est opposé, afin de vérifier la position actuelle de la chaîne à levier (2 à 6) comme point de départ du mouvement souhaité.
  2. Serrure de portière de voiture selon la revendication 1, caractérisée en ce que l'unité de commande (11) analyse les signaux de position du moteur électrique (10) pour définir la position de la chaîne à levier (2 à 6).
  3. Serrure de portière de voiture selon la revendication 1 ou 2, caractérisée en ce que la position imposée pour la chaîne à levier (2 à 6) correspond à une position de butée mécanique.
  4. Serrure de portière de voiture selon une des revendications 1 à 3, caractérisée en ce que la chaîne à levier (2 à 6) a la forme d'une chaîne de verrouillage à levier (2 à 6) et / ou d'une chaîne à levier à actionnement.
  5. Serrure de portière de voiture selon une des revendications 1 à 4, caractérisée en ce que l'unité de commande (11) analyse les circuits de courant / de tension pour la commande du moteur électrique (10).
  6. Serrure de portière de voiture selon la revendication 5, caractérisée en ce que l'unité de commande (11) différencie dans le temps les circuits de courant / de tension.
  7. Serrure de portière de voiture selon la revendication 5 ou 6, caractérisée en ce que une hausse du courant / de la tension s'accroissant avec le temps est identifiée sur le moteur électrique (10) une fois que la position imposée est atteinte.
  8. Procédé d'opération d'une serrure de voiture, doté d'une chaîne à levier (2 à 6) alimentée par moteur et d'un moteur électrique (10) doté d'une unité de commande (11) correspondante, selon lequel le moteur électrique (10) met la chaîne à levier (2 à 6) dans la position imposée ou l'alimente depuis la position imposée, et selon lequel l'unité de commande (11) utilise les données du moteur électrique (10) pour son alimentation, et que l'unité de commande (11) analyse les gradients des données techniques du moteur électrique (10) pour définir la position de la chaîne à levier (2 à 6), caractérisée en ce que l'unité de commande (11) alimente dans un premier temps, suite à un ordre d'actionnement, le moteur électrique (10) dans le sens qui lui est opposé, afin de vérifier la position actuelle de la chaîne à levier (2 à 6) comme point de départ du mouvement souhaité.
  9. Procédé selon la revendication 8, caractérisé en ce que l'unité de commande (11) est commandée par exemple sans fil, par télécommande (12) et / ou reliée à un fil, par exemple via une clé (5), pour alimenter le moteur électrique (10).
EP13745566.3A 2012-05-26 2013-05-14 Serrure de portière de véhicule automobile Active EP2877656B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102012010456A DE102012010456A1 (de) 2012-05-26 2012-05-26 Kraftfahrzeugtürschloss
PCT/DE2013/000264 WO2013178208A2 (fr) 2012-05-26 2013-05-14 Serrure de portière de véhicule automobile

Publications (2)

Publication Number Publication Date
EP2877656A2 EP2877656A2 (fr) 2015-06-03
EP2877656B1 true EP2877656B1 (fr) 2018-09-26

Family

ID=48918212

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13745566.3A Active EP2877656B1 (fr) 2012-05-26 2013-05-14 Serrure de portière de véhicule automobile

Country Status (8)

Country Link
EP (1) EP2877656B1 (fr)
CN (1) CN104334813B (fr)
BR (1) BR112014026968A2 (fr)
DE (1) DE102012010456A1 (fr)
IN (1) IN2014DN09226A (fr)
MX (1) MX2014014329A (fr)
RU (1) RU2014145621A (fr)
WO (1) WO2013178208A2 (fr)

Cited By (1)

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Publication number Priority date Publication date Assignee Title
US11078685B2 (en) 2018-12-28 2021-08-03 Continental Automotive Systems, Inc. Vehicular lock detection systems and methods

Families Citing this family (4)

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Publication number Priority date Publication date Assignee Title
FR3054259B1 (fr) * 2016-07-22 2021-06-04 Peugeot Citroen Automobiles Sa Poignee deployable a detection d’obstacle
DE102016217797B4 (de) * 2016-09-16 2023-06-22 Continental Automotive Technologies GmbH Türgriffbaugruppe mit einem Fahrzeugtürgriff
DE102018215506A1 (de) * 2018-09-12 2020-03-12 Robert Bosch Gmbh Transportvorrichtung, insbesondere Kinderwagen
FR3134594A1 (fr) * 2022-04-14 2023-10-20 Psa Automobiles Sa Procédé et dispositif de détermination d’un état de verrouillage d’un véhicule

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Also Published As

Publication number Publication date
WO2013178208A2 (fr) 2013-12-05
CN104334813A (zh) 2015-02-04
RU2014145621A (ru) 2016-07-20
DE102012010456A1 (de) 2013-11-28
MX2014014329A (es) 2015-02-12
EP2877656A2 (fr) 2015-06-03
IN2014DN09226A (fr) 2015-07-10
CN104334813B (zh) 2016-11-16
BR112014026968A2 (pt) 2017-06-27
WO2013178208A3 (fr) 2014-01-23

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