WO2012126683A1 - Système de verrouillage pour au moins une pièce de verrouillage et serrure de contact associée - Google Patents

Système de verrouillage pour au moins une pièce de verrouillage et serrure de contact associée Download PDF

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Publication number
WO2012126683A1
WO2012126683A1 PCT/EP2012/052833 EP2012052833W WO2012126683A1 WO 2012126683 A1 WO2012126683 A1 WO 2012126683A1 EP 2012052833 W EP2012052833 W EP 2012052833W WO 2012126683 A1 WO2012126683 A1 WO 2012126683A1
Authority
WO
WIPO (PCT)
Prior art keywords
locking
evaluation
drive
control unit
locking piece
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.)
Ceased
Application number
PCT/EP2012/052833
Other languages
German (de)
English (en)
Inventor
Georg Poslowsky
Stefan Mueller
Ellen Heidler
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.)
Valeo Schalter und Sensoren GmbH
Original Assignee
Valeo Schalter und Sensoren GmbH
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 Valeo Schalter und Sensoren GmbH filed Critical Valeo Schalter und Sensoren GmbH
Priority to EP12705129.0A priority Critical patent/EP2689082A1/fr
Publication of WO2012126683A1 publication Critical patent/WO2012126683A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R25/00—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles
    • B60R25/01—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles operating on vehicle systems or fittings, e.g. on doors, seats or windscreens
    • B60R25/02—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles operating on vehicle systems or fittings, e.g. on doors, seats or windscreens operating on the steering mechanism
    • B60R25/021—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles operating on vehicle systems or fittings, e.g. on doors, seats or windscreens operating on the steering mechanism restraining movement of the steering column or steering wheel hub, e.g. restraining means controlled by ignition switch
    • B60R25/02142—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles operating on vehicle systems or fittings, e.g. on doors, seats or windscreens operating on the steering mechanism restraining movement of the steering column or steering wheel hub, e.g. restraining means controlled by ignition switch comprising externally controlled safety devices for preventing locking during vehicle running condition
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/06—Electromagnets; Actuators including electromagnets
    • H01F7/08—Electromagnets; Actuators including electromagnets with armatures
    • H01F7/18—Circuit arrangements for obtaining desired operating characteristics, e.g. for slow operation, for sequential energisation of windings, for high-speed energisation of windings
    • H01F7/1805—Circuit arrangements for holding the operation of electromagnets or for holding the armature in attracted position with reduced energising current
    • H01F7/1838—Circuit arrangements for holding the operation of electromagnets or for holding the armature in attracted position with reduced energising current by switching-in or -out impedance
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/06—Electromagnets; Actuators including electromagnets
    • H01F7/08—Electromagnets; Actuators including electromagnets with armatures
    • H01F7/18—Circuit arrangements for obtaining desired operating characteristics, e.g. for slow operation, for sequential energisation of windings, for high-speed energisation of windings
    • H01F7/1844—Monitoring or fail-safe circuits
    • H01F2007/185—Monitoring or fail-safe circuits with armature position measurement

Definitions

  • Locking arrangement for at least one locking piece and associated
  • the invention relates to a barrier arrangement according to the type mentioned in the preamble of claim 1, an associated
  • Locking arrangements with an evaluation and control unit, a drive and at least one locking piece are known from the prior art, which are used in particular as pull-off locks for an ignition key from an ignition lock.
  • the evaluation and control unit causes a change in position of the at least one locking piece on the drive, wherein the change in position of the at least one locking piece activates or deactivates at least one locking mechanism in the ignition.
  • the ignition key lock described comprises a drive which causes a change in position of a locking piece, wherein the change in position of the locking piece a
  • Locking mechanism activated or deactivated.
  • the drive comprises an electromagnet with a spring-loaded armature or plunger core.
  • the spring-loaded armature or plunger core is moved against the spring force and activates the locking mechanism, which prevents the ignition key from being removed.
  • the object of the invention is to propose a locking arrangement and an associated operating method, which Enabling energy consumption and still provide a reliable lock function.
  • the advantage achieved with the invention is that the evaluation and control unit reduces a power supply of the drive when the at least one locking piece has reached a predetermined end position in which the locking mechanism is activated.
  • the basic idea of the invention is based on the fact that the energy used to hold a predetermined end position of the at least one locking piece is lower than the energy used to realize the predetermined end position. Thus, energy is saved, in which after reaching the predetermined end position of the at least one locking piece, in which a locking mechanism is activated by the at least one locking piece, the supplied energy is reduced.
  • Embodiments of the locking arrangement according to the invention comprise an evaluation and control unit, a drive and at least one locking piece, wherein the evaluation and control unit causes a change in position of the at least one locking piece via the drive, and wherein the change in position of the at least one locking piece activates or deactivates at least one locking mechanism.
  • the evaluation and control unit reduces a power supply of the drive when the at least one locking piece has reached a predetermined end position in which the locking mechanism is activated.
  • the drive is designed as a magnetic drive with at least one electromagnet, at least one spring element and at least one anchor.
  • the at least one armature is in this case designed as a locking piece and changes its position due to a magnetic force generated by the at least one electromagnet against the force of the at least one spring element.
  • the evaluation and control unit varies the energy supply of the drive via at least one series resistor, which is connected or bypassed by the evaluation and control unit.
  • the current flowing through the drive, and thus the loss of heat energy is reduced in an advantageous manner when the at least one series resistor is connected.
  • the current and thus the energy for the drive is increased, in which the at least one series resistor is bridged.
  • a current and energy saving function can be realized as long as the at least one blocking piece is in the predetermined end position.
  • the evaluation and control unit can vary the energy supply of the drive via at least one semiconductor component, wherein the evaluation and control unit varies the energy supply of the drive by driving the semiconductor component.
  • the evaluation and control unit continuously monitors the position of the at least one locking piece and detects and / or evaluates an occurring position change of the at least one locking piece. This can be ensured in an advantageous manner that the at least one locking piece is in its predetermined end position before the power-saving mode is activated. Furthermore, an ineffectiveness of the locking arrangement can be determined in an advantageous manner, which arises when the at least one locking piece leaves the predetermined end position.
  • Locking arrangement recognizes the evaluation and control unit, the change in position of the at least one locking piece sensorless about a detected voltage change to the at least one series resistor and / or the at least one Halbleiterbauele- element.
  • the voltage change is a direct consequence of the change in position of the at least one locking piece. If the at least one locking piece changes its position, this position change results in a change in the magnetic field in the electromagnet and thus in a change in current. Since the resistance value of the series resistor and / or of the semiconductor component is constant, the current change caused by the series resistor or by the semiconductor component causes a detectable voltage change.
  • This type of position detection is extremely space-saving and easy to implement, since no additional sensor is required, but anyway in the lock assembly existing components, such as the electromagnet, the locking piece, the series resistor and the evaluation and control unit for detecting the position change can be used. Furthermore, this position determination is inexpensive, since, as already mentioned, the required components are already present and no additional expensive sensor must be provided. Such an undesired change in position of the at least one locking piece can be caused, for example, by vibrations and / or impacts during operation.
  • the evaluation and control unit increases the supplied drive energy again to move the at least one locking piece back to the predetermined end position when a detected deviation of the at least one locking piece from the predetermined end position exceeds a predetermined threshold. By switching off the energy-saving mode, the danger of ineffectiveness of the blocking function which could result from exceeding the predetermined position deviation threshold value can be eliminated. This allows a reliable and gap-free blocking function with low energy consumption.
  • the evaluation and control unit monitors the voltage applied to the barrier arrangement. If voltage fluctuations are detected, then the evaluation and control unit can control these by the at least one series resistor
  • this function is advantageous when a plurality of consumers are supplied by a corresponding voltage source, since in this way a supply voltage that is as constant as possible is ensured.
  • the monitoring of the applied voltage has the advantage that, in the event of a possible undersupply of the blocking arrangement, an interruption of decrease the applied voltage, the energy-saving mode can be stopped, in which the series resistor is bridged and thus despite a voltage drop enough energy can be applied to keep the at least one locking piece further in its predetermined end position.
  • the evaluation and control unit is activated by at least one switch as a function of predetermined criteria.
  • the lock arrangement according to the invention can be activated, for example, only when the ignition key is in a deduction position and the gear selector lever is not simultaneously in the parking position. As a result, even more energy can be saved since the barrier arrangement according to the invention is energized only in a short period of time and is then deactivated during driving operation.
  • the activated evaluation and control unit activates the drive and / or bypasses the at least one series resistor, for example via at least one switch.
  • the at least one switch advantageously enables fast connection and disconnection of different circuits.
  • switches are a mass product and can advantageously be purchased in large quantities in various embodiments.
  • the at least one switch is designed as a semiconductor component.
  • a separate structural unit which comprises the at least one evaluation and control unit and / or at least one sensor for determining a malfunction and / or at least one separate voltage source. Due to the separate unit, the intrinsic safety of the barrier arrangement can be increased. In the present case, a malfunction is understood as a situation in which the functionality of the barrier arrangement can not be guaranteed and / or premature wear and / or destruction one or more components is possible. Possible malfunctions can be triggered, for example, by overheating certain components and / or excessive current and / or an inoperative component and / or interrupting the supply line.
  • the position monitoring of the at least one locking piece allows compliance with at least one predetermined end position, wherein an additional voltage source can minimize the risk of voltage fluctuations.
  • the separate evaluation and control unit in contrast to an evaluation and control unit shared by several functions or systems, guarantees a high degree of independence from other systems.
  • the lock assembly is coupled to the locking mechanism of the ignition.
  • the Abziehsperre the ignition works energy-saving and prevents in predetermined situations, nevertheless, an unauthorized removal of the ignition key from the ignition.
  • Embodiments of the inventive method for operating a locking arrangement in a vehicle which comprises a drive and at least one locking piece, activate a corresponding blocking function, which via the drive changes the position of the at least one
  • Locking piece causes, wherein the change in position of the at least one locking piece activates or deactivates at least one locking mechanism.
  • the position of the locking piece are continuously monitored and detected occurring position change of at least one locking piece and / or evaluated.
  • the supplied drive energy is increased again to move the at least one locking piece back to the predetermined end position when a detected position deviation from the predetermined end position of the at least one locking piece exceeds a predetermined threshold value ü.
  • FIG. 1 shows a schematic block diagram of an exemplary embodiment of a locking arrangement according to the invention.
  • the illustrated exemplary embodiment of a locking arrangement 1 comprises an evaluation and control unit 10, a drive 20 and at least one locking piece 24.
  • the evaluation and control unit 10 effects a change in position of the at least one via the drive 20 Locking piece 24, wherein the change in position of the at least one locking piece 24 activates or deactivates at least one locking mechanism, not shown.
  • the evaluation and control unit 10 reduces a power supply of the drive 20 if the at least one locking device piece 24 has reached a predetermined end position in which the locking mechanism is activated.
  • Embodiments of the locking arrangement 1 according to the invention are used, for example, in an ignition lock as a trigger lock for an ignition lock.
  • the drive 20 is designed as a magnetic drive with at least one electromagnet 26, at least one spring element 22 and at least one armature.
  • the at least one armature is designed as a locking piece 24 and changes its position due to a magnetic force generated by the at least one electromagnet 26 against the force of the at least one spring element 22. If the drive is activated, then the at least one
  • Locking piece 24 brought into the predetermined end position and held there. Upon deactivation of the drive 20, the at least one locking piece 24 is brought back to its original position due to the spring force of the spring element 22.
  • the evaluation and control unit 10 varies the power supply of the drive 20 by connecting or bypassing at least one series resistor R, which is connected in series with the drive 20.
  • the series resistor R reduces the flow of current through the drive 20 and thus the energy consumption. By bridging the series resistor R, a higher current flows through the drive 20. In this way, at least two different levels of power and energy consumption arise.
  • the at least one connected resistor R a current and energy saving function is realized, as long as the at least one locking piece 24 is in the predetermined end position.
  • the evaluation and control unit 10 recognizes a change in position of the at least one locking piece 24 in a sensorless manner via a detected voltage change at the at least one series resistor R.
  • the position of the at least one locking piece 24 is determined, for example, via the magnetic field change of the electromagnet 26.
  • the magnetic field change causes a deviation of a previously measured voltage. Based on suitable mathematical models can be closed by the voltage deviation to the current position of the at least one locking piece 24.
  • the evaluation and control unit 10 increases the supplied drive energy again to move the at least one locking piece 24 back to the predetermined end position when a detected deviation from the predetermined end position of the at least one locking piece 24 exceeds a predetermined threshold.
  • the evaluation and control unit 10 monitors in the illustrated embodiment, the voltage applied to the lock assembly 1 voltage U Batt and compensates for voltage fluctuations through the at least one resistor R, in which the evaluation and control unit 10 bridges the at least one resistor R ü- or connects.
  • a semiconductor component such as a field effect transistor (FET) may be used instead of Vorwider- R, so that the evaluation and control unit can vary the power supply of the drive via the semiconductor device.
  • the evaluation and control unit 10 then varies the power supply of the drive 20 by generating a corresponding drive signal for the semiconductor device. Furthermore, the evaluation and control unit 10 can compensate for voltage fluctuations by a corresponding control of the semiconductor device.
  • the evaluation and control unit 10 and thus the locking arrangement 1 are activated via a first switch S i.
  • the activated evaluation and Control unit 10 then activates the at least one series resistor R and the drive 20 via a second switch S 2 .
  • the evaluation and control unit 10 bridges the series resistor R via a third switch S 3 in order to apply the full voltage to the drive 20 and to move the at least one blocking element 24 into the predetermined end position.
  • the evaluation and control unit 10 opens the third switch S3 and connects the series resistor R in series with the drive 20 in order to reduce the current through the drive 20 and its energy consumption.
  • step S10 the disabling function of the disabling order 1 is activated by closing the first switch S i. If the locking arrangement 1 according to the invention activates a trigger lock for an ignition key in the ignition lock, then the first switch S i is closed, for example, by moving a gear lever from a parking position to another position. Furthermore, the first switch S i can be closed as soon as the vehicle is moving.
  • step S20 the evaluation and control unit 10 activates the drive 20 in the illustrated embodiment
  • step S30 the energy supply of the locking arrangement 1 in the illustrated embodiment is reduced by opening the third switch S 3 when the at least one locking piece 24 has reached the predetermined end position.
  • the bridging of the series resistor R is canceled and the series resistor R is connected in series with the drive 20. This reduces the series resistor R the
  • the at least one locking piece 24 Since less energy is required to hold the predetermined end position than is required for driving the locking piece, the at least one locking piece 24 remains in the predetermined end position despite reduced energy supply. In this way energy can be saved without affecting the blocking function.
  • the current position of the at least one locking piece 24 is continuously checked in step S40.
  • the second switch S 2 is opened for a short time to check the current position of the at least one locking piece 24 and the drive briefly disconnected from the voltage source U Batt .
  • the switch S 2 is closed again and the evaluation and control unit 10 measures the actual voltage across the series resistor R. If the currently measured voltage exceeds and / or falls below a certain threshold value, an undesired change in position of the at least one blocking piece 24 can result from the predetermined end position which can be corrected by increasing the power supply. If the deviation does not exceed and / or falls below the threshold value, then the energy-saving mode can be maintained.
  • step S50 If an undesired change in position of the at least one locking piece 24 is detected in step S50, then the method is continued with step S20 in order to re-energize the drive by bridging over the series resistor R. If, during the checking of the current position of the at least one locking piece 24, no deviation from the predetermined end position is detected, or if the current position of the locking piece 24 is within a predetermined tolerance range to the end position, then the energy saving function is maintained and the method with the step S60 continued.
  • step S60 it is checked whether the blocking function is still required. If this is the case, then the method continues with the checking of the position of the at least one locking piece 24 in step S40. If the blocking function is no longer required, the blocking function is deactivated in step S70 and the at least one locking piece 24 is returned to the starting position by opening the second switch S2 and the restoring force generated by the at least one spring element 22. Is this at least one
  • Locking piece 24 in the starting position then the locking mechanism is deactivated again.
  • the first switch S1 is opened again in the exemplary embodiment shown.
  • Embodiments of the locking arrangement 1 according to the invention can be used for example in an ignition lock with locking mechanism.
  • the locking assembly 1 is then coupled to the locking mechanism and prevents the removal of the ignition key.
  • the applied voltage U Batt is preferably a battery voltage generated by a battery of the vehicle.
  • the first switch S i is closed, for example, when the gear selector lever is not in a parked position or when the transmission is active.
  • the position of the at least one locking piece 24 is determined sensorless in the manner described.
  • the position of the blocking piece can be detected by suitable sensors, such as, for example, a Hall element. be averaged.
  • suitable sensors such as, for example, a Hall element. be averaged.
  • a plurality of switchable series resistors and / or semiconductor devices and / or one or more constant current sources, which can also be made switchable or controllable, can be used.
  • the rotational position of the ignition key can be queried when the ignition has a position-dependent, mechanically activated trigger lock.
  • the locking arrangement according to the invention is activated only when the ignition key is in the deduction position and the gear selector lever is not simultaneously in the park position. As a result, even more energy can be saved, since the locking arrangement according to the invention is energized only in a short period of time and is then deactivated during driving and the ignition key is secured against removal by the mechanically activated trigger lock.
  • a separate unit which comprises the at least one evaluation and control unit 10.
  • an already existing in the vehicle evaluation and control unit can be used for the operation of the locking arrangement according to the invention, which takes over the operation of the locking unit in addition to at least one other function.
  • the assembly may additionally comprise at least one sensor for detecting a malfunction and / or at least one separate voltage source.
  • a malfunction is understood as a situation in which the functionality of the barrier arrangement can not be guaranteed and / or premature wear and / or destruction of one or more components is possible. Possible malfunctions can be caused, for example, by overheating certain components and / or an excessively high current and / or a non-functional component and / or an interruption of the supply line are triggered.
  • a temperature sensor and / or a current sensor, etc. can be used to detect such malfunctions.
  • Embodiments of the present invention advantageously enable a reduction in the energy input of the drive when the at least one locking piece has reached a predetermined end position in which the locking mechanism is activated.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Power Engineering (AREA)
  • Lock And Its Accessories (AREA)

Abstract

L'invention concerne un système de verrouillage (1) doté d'une unité d'analyse et de commande (10), d'un entraînement (20) et d'au moins une pièce de verrouillage (24). L'unité d'analyse et de commande (10) effectue par l'intermédiaire de l'entraînement (20) une modification de la position de la ou des pièces de verrouillage (24), la modification de la position de la ou des pièces de verrouillage (24) activant ou désactivant au moins un mécanisme de verrouillage. L'invention concerne également une serrure de contact pour un véhicule dotée d'un tel système de verrouillage (1) et un procédé permettant de faire fonctionner un système de verrouillage (1) dans un véhicule. L'invention vise à réaliser un système de verrouillage à économie d'énergie. A cet effet, l'unité d'analyse et de commande (10) réduit une amenée d'énergie de l'entraînement (20) lorsque la ou les pièces de verrouillage (24) ont atteint une position finale prédéfinie, dans laquelle le mécanisme de verrouillage est activé.
PCT/EP2012/052833 2011-03-23 2012-02-20 Système de verrouillage pour au moins une pièce de verrouillage et serrure de contact associée Ceased WO2012126683A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP12705129.0A EP2689082A1 (fr) 2011-03-23 2012-02-20 Système de verrouillage pour au moins une pièce de verrouillage et serrure de contact associée

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE201110014717 DE102011014717A1 (de) 2011-03-23 2011-03-23 Sperranordnung für mindestens ein Sperrstück und zugehöriges Zündschloss
DE102011014717.9 2011-03-23

Publications (1)

Publication Number Publication Date
WO2012126683A1 true WO2012126683A1 (fr) 2012-09-27

Family

ID=45722645

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2012/052833 Ceased WO2012126683A1 (fr) 2011-03-23 2012-02-20 Système de verrouillage pour au moins une pièce de verrouillage et serrure de contact associée

Country Status (3)

Country Link
EP (1) EP2689082A1 (fr)
DE (1) DE102011014717A1 (fr)
WO (1) WO2012126683A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3946285A (en) * 1975-02-18 1976-03-23 Burroughs Corporation Solenoid control system with cusp detector
DE4332478C2 (de) 1993-04-06 1996-07-11 Merit Elektrik Gmbh Abziehsperre für den Zündschlüssel aus dem Zündschloß von Kraftfahrzeugen
DE19742037A1 (de) * 1997-09-24 1999-03-25 Wabco Gmbh Verfahren zur Abfallerkennung einer magnetbetriebenen Vorrichtung
EP2071602A1 (fr) * 2007-12-14 2009-06-17 Yang, Tai-Her Circuit de commande de maintien de la tension réduite d'actionnement de la tension pleine charge électriquement excité
EP2264722A1 (fr) * 2008-04-21 2010-12-22 Tai-Her Yang Dispositif à actionnement électromagnétique activé par alimentation CA et retenu par une alimentation CC

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19908216C2 (de) * 1999-02-25 2001-09-06 Siemens Ag Verfahren zum Starten eines Kraftfahrzeugs und Zündstartvorrichtung
AU2237300A (en) * 1999-10-26 2001-05-03 Robert Bosch Gmbh An ignition/start lock system
FR2807373B1 (fr) * 2000-04-10 2002-06-21 Valeo Securite Habitacle Antivol de vehicule automobile comportant des moyens perfectionnes de retenue du pene
DE10025651C2 (de) * 2000-05-24 2003-04-10 Delphi Tech Inc Abziehsperre für einen Schlüssel aus einem Zündanlassschalter eines Kraftfahrzeuges
DE10209551B4 (de) * 2002-03-04 2011-06-01 Volkswagen Ag Verfahren und Vorrichtung zur Steuerung einer Abzugssperre eines Zündschlüssels eines Kraftfahrzeugs

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3946285A (en) * 1975-02-18 1976-03-23 Burroughs Corporation Solenoid control system with cusp detector
DE4332478C2 (de) 1993-04-06 1996-07-11 Merit Elektrik Gmbh Abziehsperre für den Zündschlüssel aus dem Zündschloß von Kraftfahrzeugen
DE19742037A1 (de) * 1997-09-24 1999-03-25 Wabco Gmbh Verfahren zur Abfallerkennung einer magnetbetriebenen Vorrichtung
EP2071602A1 (fr) * 2007-12-14 2009-06-17 Yang, Tai-Her Circuit de commande de maintien de la tension réduite d'actionnement de la tension pleine charge électriquement excité
EP2264722A1 (fr) * 2008-04-21 2010-12-22 Tai-Her Yang Dispositif à actionnement électromagnétique activé par alimentation CA et retenu par une alimentation CC

Also Published As

Publication number Publication date
EP2689082A1 (fr) 2014-01-29
DE102011014717A1 (de) 2012-09-27

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