EP2877656A2 - Serrure de portière de véhicule automobile - Google Patents

Serrure de portière de véhicule automobile

Info

Publication number
EP2877656A2
EP2877656A2 EP13745566.3A EP13745566A EP2877656A2 EP 2877656 A2 EP2877656 A2 EP 2877656A2 EP 13745566 A EP13745566 A EP 13745566A EP 2877656 A2 EP2877656 A2 EP 2877656A2
Authority
EP
European Patent Office
Prior art keywords
electric motor
control unit
lever chain
door lock
vehicle door
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
EP13745566.3A
Other languages
German (de)
English (en)
Other versions
EP2877656B1 (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

Links

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 transferred the lever chain in a predetermined position or applied from the predetermined position, and wherein the control unit uses data of the electric motor to its application.
  • 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.
  • detectors, switches or comparable sensors can in principle be dispensed with, by means of which typically certain predetermined positions of the lever chain, in this case a locking lever chain, are detected. So you know at this point switch or Hall sensors, with their help, for example, a position "locked” or the “unlocked” position of the respective locking lever chain are detected. This is necessary in order to stop the energization of the electric motor and consequently to prevent electrical and / or mechanical damage (cf., for example, DE 199 43 483 A1).
  • the state of the art has basically proven itself, as far as the sensory monitoring of individual positions of the lever chain is concerned. Because with the help of sensors or switches, the position can be defined, reproducible and clearly detected and reported to the control unit.
  • a generic motor vehicle door lock within the scope of the invention is characterized in that the control unit evaluates gradients of performance data of the electric motor for position adjustment of the lever chain.
  • 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.
  • 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.
  • no threshold values of the current absorbed by the electric motor for example, in the sense of an increased current consumption are detected and evaluated at this point. Rather, it is a matter of the invention to detect and evaluate gradients of performance data of the electric motor. As the performance of the electric motor whose recorded current or the applied voltage come into question, because their product reflects the power absorbed.
  • the gradient is mathematically differential operators applied to a respective scale field.
  • 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 of time can also be detected and evaluated in order to detect the reaching of the predetermined position by the lever chain.
  • a current-dependent voltage change can also be evaluated by the control unit. This means that the derivative of the voltage after the current is detected with the aid of the control unit and used for the application or non-admission 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 courses 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 also provides a method for operating a motor vehicle door lock, as described in detail in claim 9 et seq.
  • a motor vehicle door lock As described in detail in claim 9 et seq.
  • 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. As soon as the electric motor travels "on block", the current absorbed by it rises sharply over time.
  • This current increase is evaluated in the example case. As soon as its gradient has exceeded a certain threshold value, the control unit concludes from the associated gradient of the absorbed current on the part of the electric motor that the predetermined position or mechanical stop position has been reached in the direction of movement of the lever chain.
  • 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 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.
  • the exact position of the lever chain can be reproduced reproducibly at any time.
  • stepping motors are relatively expensive in terms of experience, one will be in favor of one 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.
  • Fig. 1 the door lock according to the invention schematically and Fig. 2A to 2C different timing of the current absorbed by the electric motor for evaluation of the predetermined position of the associated lever chain.
  • a motor vehicle door lock which has a not explicitly shown locking mechanism of catch and pawl.
  • On the ratchet or the pawl operates a release lever 1, which is shown in Fig. 1 only in section and is 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 in a fork receptacle 9 of the central locking element 2, depending on the direction of rotation D of the control element or the driven pulley 7.
  • a lever chain or locking lever chain 2, 3, 4, 5, 6 is realized which comprises the central locking lever 2, the inner locking lever 3, the inner locking element 4 and finally the outer locking in the form of the key 5 including lock cylinder 6 composed.
  • 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”. In Fig. 1 the position "locked” is shown. In the present case, this corresponds to the fact that the right-hand control pin 8 in FIG. 1 has moved against a stop surface, consequently the predetermined position "locked” of the locking lever chain 2 to 6 corresponds to an associated mechanical stop position.
  • control unit 1 1 In order to now set the "unlocked" position of the motor vehicle door lock, the control unit 1 1 must first be acted upon accordingly. This is done in the present case by means of a merely indicated radio remote control unit 12. As a result, the control unit 11 ensures that the left in FIG. 1 control pin 8 dips into the fork receptacle 9 and the central locking lever 12 is pivoted clockwise about its axis 13, to The right in FIG. 1 control pin 8 comes to rest on the left stop surface of the fork receptacle 9, as explained in the principle of operation in detail descriptive DE 44 47 687 C2, which is expressly noted in this context.
  • FIGS. 2A to 2C show different temporal current curves for the current I as recorded by the electric motor 10 in the example case in the described process "unlock".
  • 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.
  • 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 setting 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
  • the control unit 11 ensures this. Since the predetermined position of the lever chain 2 to 6 corresponds to a respective mechanical stop position, when this mechanical stop position is reached, the current I picked up by the electric motor 11 rises sharply over the time t. By way of example, courses of the current I occur over the time t, as shown in FIGS. 2A and FIG. 2B. As soon as the maximum current intensity entered here l max . is reached, a further increase in current would correspond to the fact that the electric motor 10 is damaged. Consequently, the control unit 11 ensures that the electric motor 10 is no longer energized.
  • the time profile of the current I recorded by the electric motor 10 starts at a minimum threshold value l m i n . evaluated until reaching the maximum allowable current l max .
  • the minimum current l 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 control unit 11 interprets that the mechanical stop position is reached, in the present example the electric motor 10 releases the central locking lever 2 from its previously and in FIG 1 "locked” into the "unlocked” position. Since the slope S is exceeded, the control unit 11 after the time interval At ensures that the electric motor 10 is no longer energized.

Landscapes

  • Lock And Its Accessories (AREA)

Abstract

L'invention concerne une serrure de portière de véhicule automobile qui comprend une série de leviers (2 à 6) pouvant être soumis à l'action d'un moteur et un moteur électrique (10) à unité de commande (11) associée, le moteur électrique (10) amenant la série de leviers (2 à 6) dans une position prédéfinie ou les sollicitant à partir de leur position prédéfinie, et l'unité de commande (11) utilisant des données du moteur électrique (10) en vue de leur sollicitation. Selon l'invention, l'unité de commande (11) analyse des gradients de données de puissance du moteur électrique (10) pour le réglage des positions de la série de leviers (2 à 6).
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 true EP2877656A2 (fr) 2015-06-03
EP2877656B1 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)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
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
US11078685B2 (en) 2018-12-28 2021-08-03 Continental Automotive Systems, Inc. Vehicular lock detection systems and methods
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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DE4439479A1 (de) * 1994-11-08 1996-05-09 Bocklenberg & Motte Bomoro Kraftfahrzeug-Türverschluß mit Zentralverriegelungsantrieb
DE9421846U1 (de) 1994-09-01 1996-10-31 Kiekert AG, 42579 Heiligenhaus Kraftfahrzeug-Türverschluß
US5634677A (en) 1994-09-01 1997-06-03 Kiekert Aktiengesellschaft Power-locking motor-vehicle door latch
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EP1862624B1 (fr) * 2006-06-01 2017-02-15 Pilz Auslandsbeteiligungen GmbH Dispositif de maintien pour un dispositif de protection de l'accès
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JP5222231B2 (ja) * 2009-06-03 2013-06-26 株式会社ユーシン ドアロックアクチュエータ
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Also Published As

Publication number Publication date
WO2013178208A2 (fr) 2013-12-05
CN104334813A (zh) 2015-02-04
EP2877656B1 (fr) 2018-09-26
RU2014145621A (ru) 2016-07-20
DE102012010456A1 (de) 2013-11-28
MX2014014329A (es) 2015-02-12
IN2014DN09226A (fr) 2015-07-10
CN104334813B (zh) 2016-11-16
BR112014026968A2 (pt) 2017-06-27
WO2013178208A3 (fr) 2014-01-23

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