EP0650177A1 - Méthode pour commander des relais arrangés en parallèle - Google Patents

Méthode pour commander des relais arrangés en parallèle Download PDF

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Publication number
EP0650177A1
EP0650177A1 EP94114740A EP94114740A EP0650177A1 EP 0650177 A1 EP0650177 A1 EP 0650177A1 EP 94114740 A EP94114740 A EP 94114740A EP 94114740 A EP94114740 A EP 94114740A EP 0650177 A1 EP0650177 A1 EP 0650177A1
Authority
EP
European Patent Office
Prior art keywords
rel
relay
relay excitation
switched
switch
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
EP94114740A
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German (de)
English (en)
Other versions
EP0650177B1 (fr
Inventor
Manfred Glehr
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.)
Siemens AG
Original Assignee
Siemens 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 Siemens AG filed Critical Siemens AG
Publication of EP0650177A1 publication Critical patent/EP0650177A1/fr
Application granted granted Critical
Publication of EP0650177B1 publication Critical patent/EP0650177B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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 method for controlling relay excitation coils according to the preamble of claim 1.
  • a relay has an armature through which switch contacts can be actuated.
  • the force required for actuation must be applied by the relay excitation coil.
  • a certain current through the excitation coil is required to attract the armature and to actuate the switch contacts. Since the losses in the magnetic circuit caused by the air gap become smaller after the armature has been tightened, a lower current is sufficient to hold the contacts than to tighten. The consequence of this is that in general the drive current of the relay can be reduced by half to a third in this case, as a result of which the power loss due to the lower holding current and thus the heating of the excitation coil is reduced.
  • a known method is that after reaching the response state, the holding current is reduced by switching to a voltage source with a lower supply voltage.
  • Another known method is that the relay is controlled with a clock ratio after reaching the response state, so that the holding current drops to a steady state.
  • Another known method is to initially supply the relay with a higher control voltage, which is possible with the aid of a voltage multiplier.
  • relays or relay groups are to be supplied by one voltage source, a separate circuit is required for each relay, for example for clocking. This requires a lot of circuitry and thus high manufacturing costs.
  • the flowchart shown in FIG. 1 shows the process sequence for switching on and switching off several relays.
  • the routine begins at step S1. In a subsequent step S2, all the desired relays are switched on. In a subsequent decision step S3, a decision is made as to whether the desired relays have picked up. If “No” is determined, the desired relays continue to be supplied with the starting current. If “yes” is determined, the routine proceeds to step S4, where the desired relays are driven with a clock ratio.
  • step S5 it is determined whether all or individual relays are to be switched off. If “No” is determined, this or these are further controlled at S4 with the clock ratio. If “yes” is decided, the relays that are to remain switched on are fixed via a switch at step S6, i.e. without a clock ratio, switched on. In a subsequent step S7, a common switch is operated simultaneously. With this switch, the relays to be switched off are quickly switched off. The routine ends at step S8.
  • FIG. 2 now shows a circuit arrangement with which a clocked control can be carried out.
  • two relay excitation coils Rel 1 and Rel 2 are connected in parallel to a voltage source Ub, each of which can be switched by a switch s1, s2 located in series.
  • a diode D1, D2 connected in the reverse direction is connected, to which a common Z-diode Z operated in the reverse direction is connected, the anode of which is connected to the voltage source Ub.
  • a common switch s0 is arranged parallel to the Zener diode Z, through which the Zener diode Z can be bridged.
  • the switches s1, s2 can be switched clocked by a clock generator, not shown, according to the method.
  • the time course of the current as a function of time is shown on the basis of a diagram which shows the current course through the relay excitation coil Rel 1 as an example.
  • the relay excitation coil Rel 1 is switched on by the switch s1 to the voltage source Ub, as a result of which the current in the relay excitation coil Rel 1 u. due to the occurring induction voltage, which counteracts the applied voltage Ub, increases with a delay.
  • the common switch s0 is closed.
  • the response state of relay Rel 1 should be reached, the small dip in the current curve, which occurs due to the changing inductance due to the attraction of the armature, not being shown.
  • the response state of the relay excitation coil Rel 1 is thus reached at the time t1, the time t1 being determined beforehand by measurement or calculation from the power supply voltage Ub, the ohmic resistance of the relay excitation coil, the inductance and the temperature which arises.
  • switch s1 now begins to clock due to the activation of the clock generator.
  • the switch s1 is thus opened at the time t1, so that the current i1 in the relay excitation coil Rel 1 drops.
  • the negative switch-off voltage peak occurring at time t1 breaks down due to the diode D1 to the value of its forward voltage drop, so that the switch-off peak is reduced.
  • the common switch s0 remains closed.
  • the switch s1 is now closed again by the clock generator, with the result that the current i1 in the relay excitation coil Rel 1 rises again.
  • the switch s1 is opened again, so that the current i1 in the relay excitation coil Rel 1 rises again.
  • the process continues alternately over the times t4, t5, so that after a certain time the steady state shown in FIG. 4 is established, the current i1 forming the holding current at which the relay armature remains attracted.
  • the magnitude of the current i1 is determined by the ratio of the switch-on time Tx to the switch-off time Ty indicated in FIG. 3, which is referred to as the clock ratio.
  • the diagram shown in FIG. 5 shows the current profile i1 (t) in the relay excitation coil Rel 1, the current profile i2 (t) in the relay excitation coil Rel 2 and the switch positions s1, s2, s0, the thick lines of the switch positions showing the closed state to indicate this switch.
  • the time profile of the currents i1 and i2 at the time t0 to thousand corresponds to the current profile shown in FIGS. 3 and 4 for the steady state. Accordingly, the current i1 is controlled clocked by the relay excitation coil Rel 1, as is the current i2 by the relay excitation coil Rel 2.
  • the switches s1 and s2 are controlled clocked in accordance with the clock ratio. The switch s0 is always closed.
  • the switch S0 has a certain resistance in the "on" position (the switch can be designed as a transistor switch), whereas the resistance of the Z diode is extremely small in the region of the breakdown voltage, so that the relay excitation coil rel 1 is quickly discharged via the diode D1, which leads to a desired rapid drop in the relay armature of the excitation coil Rel 1.
  • the voltage between the diode D1 and the Zener diode rises briefly steeply, so that if the switch s2 were actuated in this state, that is, the switch s2 was also temporarily switched off, the relay Rel 2 would fall off.
  • the switch s2 (and possible other switches) is closed, which remains in a closed position in a non-clocked operation until the time t1 until the time t1 is reached , where, as already described in Figure 3, is switched back to clocked operation.
  • the power loss increases again somewhat, but the component expenditure is significantly lower.
  • FIG. 6 shows a subcircuit for generating the control signals for the switches s1 and s2, although this task can also be performed by a microprocessor.
  • the circuit consists of two inputs E1, E2, each of which is connected to an input of an AND gate, the signals for Si1, Si2 being removable at its output.
  • the inputs E1, E2 are also connected to a monostable, retriggerable flip-flop Q, which here has two negative edge-controlled inputs.
  • the exit of the Flip-flops are connected to an input of two OR gates, the other input of the two OR gates being connected to a clock generator.
  • the respective outputs of the two OR gates are connected to the respective second input of the AND gates.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Relay Circuits (AREA)
EP94114740A 1993-09-28 1994-09-19 Méthode pour commander des relais arrangés en parallèle Expired - Lifetime EP0650177B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4332995 1993-09-28
DE4332995A DE4332995C1 (de) 1993-09-28 1993-09-28 Verfahren zur Ansteuerung von parallel angeordneten Relais

Publications (2)

Publication Number Publication Date
EP0650177A1 true EP0650177A1 (fr) 1995-04-26
EP0650177B1 EP0650177B1 (fr) 1997-11-19

Family

ID=6498841

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94114740A Expired - Lifetime EP0650177B1 (fr) 1993-09-28 1994-09-19 Méthode pour commander des relais arrangés en parallèle

Country Status (3)

Country Link
US (1) US5552954A (fr)
EP (1) EP0650177B1 (fr)
DE (2) DE4332995C1 (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4429918A1 (de) * 1994-08-23 1996-02-29 Bosch Siemens Hausgeraete Schaltungsanordnung zur Ansteuerung wenigstens eines elektrisch ansteuerbaren Magneten
IT1284693B1 (it) * 1996-07-23 1998-05-21 Fiat Ricerche Dispositivo di controllo di carichi induttivi, in paricolare di iniettori in un impianto di iniezione per un motore a combustione
US5892650A (en) * 1996-11-29 1999-04-06 Denso Corporation Solenoid valve driving device
DE19731269B4 (de) * 1997-07-22 2006-02-23 Hager Electro Gmbh Vorrichtung zum Schalten von elektrischen Kontakten
US20090015066A1 (en) * 2007-07-10 2009-01-15 Yazaki North America, Inc. Close-loop relay driver with equal-phase interval
CN101866737A (zh) * 2009-04-14 2010-10-20 杨泰和 高压启动低压通电保持的电磁致动装置
US9548612B2 (en) 2012-09-28 2017-01-17 Kohler Co. Paralleling module for a generator system
US9871378B2 (en) 2012-09-28 2018-01-16 Kohler Co. Paralleling module for a generator system
US10186857B2 (en) 2016-05-16 2019-01-22 Astronics Advanced Electronic Systems Corp. Paralleling mechanical relays for increased current carrying and switching capacity
KR102661621B1 (ko) * 2019-05-03 2024-04-29 현대자동차주식회사 친환경 차량의 고전압 릴레이 제어 시스템 및 방법

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2000117A1 (de) * 1970-01-02 1971-07-08 Anker Werke Ag Schaltungsanordnung zum Betrieb elektromagnetischer Verbraucher
DE3331678A1 (de) * 1983-09-02 1985-04-04 Westdeutsche Elektrogerätebau GmbH, 4770 Soest Schaltungsanordnung fuer eine durch aeussere beschaltung zeitlich begrenzbare anzugs- und halte-erregung eines relais
DE3911431A1 (de) * 1989-04-07 1990-10-11 Siemens Ag Integrierbare freilaufschaltung
EP0392058A1 (fr) * 1989-04-13 1990-10-17 Siemens Aktiengesellschaft Circuit de commande d'au moins un relais électromagnétique
DE4117535A1 (de) * 1991-05-29 1992-12-03 Miele & Cie Schaltungsanordnung zum ansteuern eines relais

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2053767A1 (de) * 1969-11-10 1971-05-27 Zentronik Veb K Schaltungsanordnung zur Ansteuerung von Elektromagneten
DE3208660A1 (de) * 1981-03-12 1982-09-23 Lucas Industries Ltd., Birmingham, West Midlands Steuerschaltung
DE3308660C2 (de) * 1983-03-11 1985-12-19 Stb Strahlentechnische Bilddiagnostik Heinz Fleck, 2080 Pinneberg Verfahren zum Vergleichen von zu verschiedenen Zeitpunkten aufgenommenen medizinischen Röntgenaufnahmen
DE3434343A1 (de) * 1984-09-19 1986-03-27 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Anordnung zur stromversorgung von relais
IT1221019B (it) * 1985-04-01 1990-06-21 Ates Componenti Elettron Dispositivo elettronico integrato per il comando di carichi induttivi,con elemento di ricircolo
DE4026427C1 (fr) * 1990-08-21 1992-02-13 Siemens Ag, 8000 Muenchen, De

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2000117A1 (de) * 1970-01-02 1971-07-08 Anker Werke Ag Schaltungsanordnung zum Betrieb elektromagnetischer Verbraucher
DE3331678A1 (de) * 1983-09-02 1985-04-04 Westdeutsche Elektrogerätebau GmbH, 4770 Soest Schaltungsanordnung fuer eine durch aeussere beschaltung zeitlich begrenzbare anzugs- und halte-erregung eines relais
DE3911431A1 (de) * 1989-04-07 1990-10-11 Siemens Ag Integrierbare freilaufschaltung
EP0392058A1 (fr) * 1989-04-13 1990-10-17 Siemens Aktiengesellschaft Circuit de commande d'au moins un relais électromagnétique
DE4117535A1 (de) * 1991-05-29 1992-12-03 Miele & Cie Schaltungsanordnung zum ansteuern eines relais

Also Published As

Publication number Publication date
DE4332995C1 (de) 1994-10-20
US5552954A (en) 1996-09-03
EP0650177B1 (fr) 1997-11-19
DE59404623D1 (de) 1998-01-02

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