EP1341202A1 - Dispositif pour la commande d'un actionneur électromagnétique - Google Patents

Dispositif pour la commande d'un actionneur électromagnétique Download PDF

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Publication number
EP1341202A1
EP1341202A1 EP02024701A EP02024701A EP1341202A1 EP 1341202 A1 EP1341202 A1 EP 1341202A1 EP 02024701 A EP02024701 A EP 02024701A EP 02024701 A EP02024701 A EP 02024701A EP 1341202 A1 EP1341202 A1 EP 1341202A1
Authority
EP
European Patent Office
Prior art keywords
voltage
electromagnetic actuator
relay
control device
coil
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.)
Withdrawn
Application number
EP02024701A
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German (de)
English (en)
Inventor
Joachim Schenk
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch 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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP1341202A1 publication Critical patent/EP1341202A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H47/00—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current
    • H01H47/22—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current for supplying energising current for relay coil
    • H01H47/32—Energising current supplied by semiconductor device
    • H01H47/325—Energising current supplied by semiconductor device by switching regulator

Definitions

  • the invention relates to a control device an electromagnetic actuator according to the genus of Main claim.
  • the inventive device for controlling a electromagnetic actuator with the features of The main claim has the advantage that the Control device one for the electromagnetic actuator specified specific voltage at the electromagnetic Actuator adjusts. This way it can be guaranteed be that regardless of the one just pending Supply voltage necessary for the operation of the electromagnetic actuator required voltage for Can be made available. This is particularly the case with the Use of the electromagnetic actuator in one Motor vehicle of importance since there are fluctuations in the Vehicle electrical system voltage and thus the supply voltage can.
  • 1 denotes a device for controlling an electromagnetic actuator 5.
  • the electromagnetic actuator 5 can be designed, for example, as a relay. In the following it is assumed as an example that the electromagnetic actuator 5 is designed as a relay.
  • the relay 5 comprises a coil 35. Further components of the relay 5 are not shown in FIG. 1 for the sake of clarity. When current flows through the coil 35, a magnetic field is formed which interacts with a switch of a load circuit.
  • a first connection 40 of the coil 35 is connected to an operating voltage potential 15.
  • a second connection 45 of the coil 35 is connected to a reference potential 20 via a controllable resistor 10.
  • a voltage source 50 for example a vehicle battery, supplies a supply voltage U B which, based on the reference potential 20, provides the operating voltage potential 15.
  • the controllable resistor 10 can be designed, for example, as a controlled switch and, according to the example according to FIG. 1, is designed as a MOS field effect transistor. Its switching path is connected in series with the coil 35 and forms with the coil 35 a voltage divider which is connected on the one hand to the operating voltage potential 15 and on the other hand to the reference potential 20.
  • the MOS field effect transistor 10 is part of the device 1.
  • the device 1 further comprises a control device 25 for controlling the MOS field effect transistor 10.
  • the control device 25, as shown in FIG. 1, can include a device 30 for measuring the operating voltage potential 15.
  • a diode 55 can be provided their anode to the second terminal 45 of the coil 35 and with its cathode to the first connection 40 of the coil 35 to join.
  • the diode 55 other discharge elements such as e.g. a resistance serve.
  • At least one pull-in voltage between the first connection 40 and the second connection 45 of the coil 35 is required for switching the relay 5.
  • the pull-in voltage can be reduced to a lower holding voltage, which is at least necessary to hold the switch of the relay 5 (not shown in FIG. 1) in its switching position.
  • a first voltage can now be specified specifically for the relay 5, which is required for switching the relay 5 and is greater than or equal to the minimum required starting voltage.
  • a second voltage for holding the switch of the relay 5 in its switching position can be predetermined, which is greater than or equal to the minimum required holding voltage.
  • the task of the control device 25 is now to regulate the predetermined first voltage or the predetermined second voltage between the first connection 40 and the second connection 45 of the coil 35, depending on whether the relay 5 is to be switched or kept in its switching state.
  • the electrical resistance of the coil 35, the reference potential 20 and from the device 30 for measuring the operating voltage potential 15 the currently measured measured supply voltage U B are also known in the control device 25.
  • the control device 25 can thus control the MOS field-effect transistor 10 in accordance with the current supply voltage U B of the electrical resistance of the coil 35 and the first or second voltage to be applied between the first connection 40 and the second connection 45 of the coil 35 that its switching path forms an electrical resistance, which ensures the necessary voltage drop across the coil 35.
  • the voltage required for the operation of the relay 5 between the first connection 40 and the second connection 45 of the coil 35 can be ensured if the supply voltage U B remains greater than that for the operation of the Relay 5 on the coil 35, that is, the voltage required between the first connection 40 and the second connection 45 of the coil 35.
  • the control device 25 has to increase the drive voltage for the MOS field-effect transistor 10 accordingly. Conversely, if the supply voltage U B increases, the resistance of the switching path of the MOS field-effect transistor 10 must be increased accordingly in order to keep the voltage drop across the coil 35 constant. For this purpose, the control device 25 must output a correspondingly smaller drive voltage to the MOS field-effect transistor 10.
  • the MOS field-effect transistor 10 is controlled by the control device 25 such that the minimum voltage U min just required for the respective operation of the relay 5 is applied to the coil 35.
  • FIG. 2 shows an example of an amplitude A of the voltage across the coil 35 over the time t. This voltage is kept constant at the required minimum voltage U min , the minimum voltage U min representing the minimum required holding voltage of the relay 5 in the example according to FIG. In this way, the energy consumption or the power loss at the coil 35 can be reduced.
  • the triggering of the MOS field-effect transistor 10 can also be clocked with the period T. 3 shows the amplitude A MOS of the drive voltage of the MOS field-effect transistor 10 over time t.
  • the control voltage of the MOS field-effect transistor 10 is now no longer constantly present at the control input of the MOS field-effect transistor 10, but rather pulsed by means of a pulse width modulation initiated by the control device 25.
  • a pulse pause 60 Between two voltage pulses of the duration t 1 and the duration t 2 there is a pulse pause 60 in which there is no voltage at the control input of the MOS field-effect transistor 10.
  • the pulse pause 60 must be shorter than the time required to overcome the inertia of the relay 5 for switching the relay 5 back.
  • the reciprocal of the pulse pause 60 as the frequency of the activation of the relay 5 must be greater than the reciprocal of the time required to overcome the inertia of the relay 5 to switch the relay 5 back, which is also referred to as the maximum actuating frequency of the relay 5.
  • the drive voltage for the MOS field-effect transistor 10 is zero.
  • the pulse width ratio of the MOS field-effect transistor 10 is selected as a function of the supply voltage U B , the electrical resistance of the coil 35 and the minimum voltage U min required for the coil 35, for example the minimum required holding voltage.
  • the coil 35 discharges via the diode 55, so that a constant minimum current, in this example for holding the relay 5, results through the coil 35.
  • the Power loss on the coil 35 is reduced to a minimum if the frequency of control is as short as possible above the maximum actuating frequency of relay 5 from the Control device 25 is selected.
  • the relay 5 In a motor vehicle, the relay 5 must be designed for a large range for the supply voltage U B by means of the control device 25. This means that the relay 5 must still be able to pick up even at a low supply voltage U B of, for example, 7V and less and in some cases must still be able to hold the switch of the relay 5 in its switch position up to a supply voltage U B below 5V. Since the supply voltage U B in the motor vehicle is usually between 10 V and 15 V, the described function of the control device 25 largely avoids the unnecessary power loss caused by the difference between the minimum voltage U min required for the respective operation of the relay 5 and the supply voltage U B. The coil 35 of the relay 5 can thus be operated constantly with the minimum voltage U min required for the operation of the relay 5 to reduce the power loss due to the described function of the control device 25.
  • the device 30 for measuring the supply voltage U B can be designed as a microcontroller and can comprise an analog-digital converter and an input circuit.
  • the voltage applied to the coil 35 could also be set directly by an analog regulator to the desired minimum voltage U min specific to the relay 5, depending on the operation, for pulling in or holding the switch of the relay 5.
  • analog controllers are known to the person skilled in the art, for example from Tietze, Schenk, semiconductor circuit technology, 9th edition, Springer-Verlag, Berlin, 1991.
  • the MOS field-effect transistor 10 can also be used together with the control device 25 in a common module be integrated.
  • the control device 25 it is essential for the control device 25 in all cases that a specific voltage specified for the relay 5 is set at the relay 5, the specific voltage specified for the relay 5 to reduce the power loss advantageously the minimum voltage U min required depending on the operating mode of the relay 5 corresponds to the minimum required to tighten or hold the switch of relay 5.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Relay Circuits (AREA)
EP02024701A 2001-11-14 2002-11-06 Dispositif pour la commande d'un actionneur électromagnétique Withdrawn EP1341202A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2001155969 DE10155969A1 (de) 2001-11-14 2001-11-14 Vorrichtung zur Ansteuerung eines elektromagnetischen Stellgliedes
DE10155969 2001-11-14

Publications (1)

Publication Number Publication Date
EP1341202A1 true EP1341202A1 (fr) 2003-09-03

Family

ID=7705748

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02024701A Withdrawn EP1341202A1 (fr) 2001-11-14 2002-11-06 Dispositif pour la commande d'un actionneur électromagnétique

Country Status (2)

Country Link
EP (1) EP1341202A1 (fr)
DE (1) DE10155969A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1570503A1 (fr) * 2002-11-28 2005-09-07 Johnson Controls Technology Company Commande de relais electromagnetiques
RU2402089C1 (ru) * 2009-04-07 2010-10-20 Общество с ограниченной ответственностью "Технос" Электромагнитный привод
FR2966642A1 (fr) * 2010-10-22 2012-04-27 Delphi Tech Inc Dispositif de regulation d'une bobine de relais
EP2383765B1 (fr) 2010-04-29 2020-01-15 Kissling Elektrotechnik GmbH Relais doté d'une commutation de sécurité intégrée

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4192645B2 (ja) * 2003-03-24 2008-12-10 三菱電機株式会社 操作回路およびこれを用いた電力用開閉装置
DE102004058159B4 (de) * 2004-12-02 2014-02-13 Bosch Rexroth Ag Schaltungsanordnung zur Betätigung eines Ventils
DE202006013422U1 (de) * 2006-08-31 2008-01-03 Brose Fahrzeugteile Gmbh & Co. Kommanditgesellschaft, Coburg Steuervorrichtung zum Ansteuern eines mit Hilfe eines Elektromotors betätigbaren Verstellmechanismus in einem Kraftfahrzeug
DE102006055835A1 (de) * 2006-11-16 2008-05-21 Löcher, Thomas, Dr. Verfahren und Vorrichtung zum Schalten elektromagnetischer Schaltelemente mit konstanter elektrischer Gleichspannung
DE102007031995A1 (de) * 2007-07-09 2009-01-15 Moeller Gmbh Steuervorrichtung für ein Schaltgerät mit Anzugs- und/oder Haltespule sowie Verfahren zum Steuern des durch die Spule fließenden Stroms
US8159808B2 (en) 2009-02-26 2012-04-17 Raytheon Company +28V aircraft transient suppression
DE102010018754A1 (de) * 2010-04-29 2011-11-03 Kissling Elektrotechnik Gmbh Monostabiles Relais mit elektrischer Leistungsreduzierung
DE102013223434A1 (de) * 2013-11-18 2015-05-21 Robert Bosch Gmbh Schaltungsanordnung zur Ansteuerung eines Schützes mit Haltestromeinstellung mittels PWM
DE102022212732A1 (de) * 2022-11-28 2024-05-29 Geze Gmbh Feststellanlage

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4214290A (en) * 1976-03-19 1980-07-22 Sevcon Limited Control circuit for electromagnetically operated contactor
DE4006838A1 (de) * 1990-03-05 1991-09-12 Metz Albert Blumberger Tel Verfahren und anordnung zum schalten eines elektromechanischen relais
DE4117535A1 (de) * 1991-05-29 1992-12-03 Miele & Cie Schaltungsanordnung zum ansteuern eines relais
DE19524003A1 (de) * 1995-06-30 1997-01-09 Siemens Ag Elektronische Schaltungsanordnung zur Relaisansteuerung
DE19719602A1 (de) * 1997-05-09 1998-11-12 Fahrzeugklimaregelung Gmbh Elektronische Steuerschaltung

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3843138A1 (de) * 1988-12-22 1990-06-28 Bosch Gmbh Robert Verfahren zur steuerung und erfassung der bewegung eines ankers eines elektromagnetischen schaltorgans
DE4021486A1 (de) * 1990-07-05 1992-01-16 Bosch Gmbh Robert Schaltungsanordnung zum betrieb von elektromagnetischen verbrauchern
DE4414609B4 (de) * 1994-04-27 2005-12-22 Robert Bosch Gmbh Einrichtung zur Ansteuerung eines Verbrauchers
DE19723931A1 (de) * 1997-06-06 1998-12-10 Siemens Ag Einrichtung zum Steuern eines elektromechanischen Stellgeräts
DE19746980A1 (de) * 1997-10-24 1999-04-29 Bosch Gmbh Robert Verfahren und Vorrichtung zur Ansteuerung wenigstens eines elektromagnetischen Verbrauchers
DE10057778A1 (de) * 2000-02-16 2001-10-18 Bosch Gmbh Robert Verfahren und Schaltungsanordnung zum Betrieb eines Magnetventils

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4214290A (en) * 1976-03-19 1980-07-22 Sevcon Limited Control circuit for electromagnetically operated contactor
DE4006838A1 (de) * 1990-03-05 1991-09-12 Metz Albert Blumberger Tel Verfahren und anordnung zum schalten eines elektromechanischen relais
DE4117535A1 (de) * 1991-05-29 1992-12-03 Miele & Cie Schaltungsanordnung zum ansteuern eines relais
DE19524003A1 (de) * 1995-06-30 1997-01-09 Siemens Ag Elektronische Schaltungsanordnung zur Relaisansteuerung
DE19719602A1 (de) * 1997-05-09 1998-11-12 Fahrzeugklimaregelung Gmbh Elektronische Steuerschaltung

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1570503A1 (fr) * 2002-11-28 2005-09-07 Johnson Controls Technology Company Commande de relais electromagnetiques
RU2402089C1 (ru) * 2009-04-07 2010-10-20 Общество с ограниченной ответственностью "Технос" Электромагнитный привод
EP2383765B1 (fr) 2010-04-29 2020-01-15 Kissling Elektrotechnik GmbH Relais doté d'une commutation de sécurité intégrée
FR2966642A1 (fr) * 2010-10-22 2012-04-27 Delphi Tech Inc Dispositif de regulation d'une bobine de relais

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Publication number Publication date
DE10155969A1 (de) 2003-05-22

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