EP1209709A1 - Elektrische Schaltungsanordnung zur Meldung von Zustandsinformationen, insbesondere für Eisenbahnmaterial, und System mit einer solchen Einrichtung - Google Patents

Elektrische Schaltungsanordnung zur Meldung von Zustandsinformationen, insbesondere für Eisenbahnmaterial, und System mit einer solchen Einrichtung Download PDF

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Publication number
EP1209709A1
EP1209709A1 EP20010402860 EP01402860A EP1209709A1 EP 1209709 A1 EP1209709 A1 EP 1209709A1 EP 20010402860 EP20010402860 EP 20010402860 EP 01402860 A EP01402860 A EP 01402860A EP 1209709 A1 EP1209709 A1 EP 1209709A1
Authority
EP
European Patent Office
Prior art keywords
switch
branch
electrical circuit
circuit according
accumulator
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
EP20010402860
Other languages
English (en)
French (fr)
Other versions
EP1209709B1 (de
Inventor
Patrick Convert
Michel Bert
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.)
Alstom SA
Original Assignee
Alstom SA
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 Alstom SA filed Critical Alstom SA
Publication of EP1209709A1 publication Critical patent/EP1209709A1/de
Application granted granted Critical
Publication of EP1209709B1 publication Critical patent/EP1209709B1/de
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
    • H01H1/00—Contacts
    • H01H1/60—Auxiliary means structurally associated with the switch for cleaning or lubricating contact-making surfaces
    • H01H1/605—Cleaning of contact-making surfaces by relatively high voltage pulses
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/16—Indicators for switching condition, e.g. "on" or "off"
    • H01H9/167—Circuits for remote indication

Definitions

  • the invention relates to an electrical circuit for routing information of all or nothing type, in particular for an application in the field rail.
  • a solution currently used consists in connecting to the two terminals of a accumulator an electric circuit in closed loop, which comprises in series at least one switch linked to the state of the organ to be controlled, a resistance, and an insulation link galvanic connected to the device receiving the information contained in the signal, by example the electronic control circuit of the PLC or the control and signaling.
  • the open or closed position of the switch is representative of the state of a parameter or equipment.
  • a current including the intensity is limited by the resistance, circulates in the circuit.
  • no current does not pass.
  • the presence or absence of this current is transformed by the connection to galvanic isolation into all or nothing information communicated to the electronic circuit.
  • a train has a plurality of such circuits connected to terminals of the same accumulator.
  • the accumulator generally supplying several circuits, and other equipment, the voltage it delivers varies over time with the level of load at its terminals.
  • the intensity of the current in the circuit therefore also varies, in proportion to the state of charge of the accumulator.
  • the amount of heat dissipated increases with the number of switches and information to be transmitted.
  • the invention aims to reduce the aforementioned drawbacks of the prior art.
  • the aim of the invention is therefore to carry information from all or nothing type with a high degree of reliability and availability, while reducing the power dissipated by the Joule effect.
  • the invention also relates to an electrical system intended for transmitting a plurality of state information, characterized in that it comprises an accumulator and a plurality of electrical circuits, as defined above, each intended for transmit status information and connected in parallel to the terminals of said accumulator.
  • this electrical system is on board a railway convoy, each switch being associated with an organ or a equipment of the railway convoy, to control its state or position.
  • FIG. 1 represents a particular embodiment of a circuit for transmission capable of transmitting all or nothing information representative of the state of a organ or equipment to be checked, in particular vehicle equipment rail.
  • An elementary circuit belonging to a system has been isolated in FIG. 1 more complete electric, not shown, comprising a plurality of elementary circuits similar connected in parallel to the terminals of an accumulator and able to transmit a plurality of all or nothing information to an electronic circuit for controlling automata.
  • the electrical transmission circuit is connected to the terminals of a accumulator 3 and a connection S collects at the output of the elementary circuit, the information all or nothing by means of a link which will be described below, to transmit it to one of the input ports of an electronic circuit 2.
  • the electronic circuit 2 also includes ports 4 for output by example for the control of PLCs (not shown).
  • the accumulator 3 the electrical system and the electronic circuit 2 are intended to be loaded onto a train. It goes without saying that the electronic circuit 2 for controlling PLCs can be replaced by a control panel control and signaling or by any device capable of receiving and processing a all or nothing information.
  • the accumulator 3 is the only source of direct voltage for the whole train. Also, the various on-board equipment which requires a supply of direct current are supplied by this single accumulator 3. The voltage which it delivers is therefore likely to vary over time, depending on the load at its terminals, between 0.6 times and 1.4 times its nominal voltage.
  • the accumulators 3 generally used at present in trains, have nominal voltages of 24 volts, 36 volts, 48 volts, 96 volts and 110 volts.
  • the electrical transmission circuit comprises a loop B supplied by the accumulator 3 which comprises, arranged in series, a switch 5, a diode 16, an inductor 6, a galvanically isolated connection 7 which can for example be carried out by means of an optocoupler, and two branches 8 and 9 in parallels originating at a point A arranged at the outlet of the connection to galvanic isolation 7.
  • the diode 16 is polarized so as to prevent the discharge of inductor 6 elsewhere than through the optocoupler 7.
  • the branch 8 comprises, arranged in series, a capacitor 10 and a variable voltage generator 1 producing a square signal, of half-period t 0 and of peak-to-peak amplitude Vg symmetrical as shown in FIG. 2.
  • the value of the voltage amplitude Vg will be chosen to be less than the voltage E across the terminals of the accumulator 3 and will, for example, be of the order of 15 V. w
  • the second branch 9 comprises a diode 12 and a capacitor 13 in series.
  • a resistor 14 is disposed between a point P of the second branch 9 located between the diode 12 and the capacitor 13, and the positive terminal of the accumulator 3.
  • the diode 12 is polarized so as to prevent the discharge of the capacitor 13 elsewhere than by the resistance 14.
  • the organ or equipment whose state we want to control activates the closure and the opening of the switch 5.
  • ⁇ Q C10 C 10 * (Vg-Vc-2 * Vd-Vled).
  • the charge variation of the inductance 6 of the first branch is also immediately transferred through the diode 12 into the capacitor 13 with a slight increase in the voltage across its terminals (because C 13 >> C 10 ) and the charges are then dissipated in the resistance 14.
  • V AT (t) ( vg - Vc - Vd - Vled ) - ( E + Vd - vg ) t 0 * T + E + Vd-Vg
  • Is V AT (T) vg - Vc - 2 * Vd - Vled t 0 * T + E + Vd-Vg
  • the variation of the current i L in the inductance 6 during the first and second phases is shown in an exaggerated manner, in order to be better visible, on the graph of FIG. 3.
  • the current flowing through the inductor 6 also flows in the optocoupler 7, it thus establishes, when the switch 5 is closed, a current in optocoupler 7, which produces in response an output signal on connection S.
  • La position of the optocoupler 7 in series with the switch 5 is advantageous since the signal it generates as an output is a fairly faithful image of the current flowing inductor 5.
  • the voltage generator 1 maintains the energy level in the circuit, and only the power it releases for this purpose is consumed by the Joule effect.
  • the intensity of the current i L injected into the circuit is independent of the voltage E delivered by the accumulator 3.
  • a variation of the voltage E delivered by the accumulator 3 does not introduce a variation of the current consumed by resistance 14.
  • FIG. 4 represents an alternative embodiment of the electrical circuit of the Figure 1 in which a clipper 11 is disposed between a point between the switch 5 and the diode 16 and the negative terminal of the accumulator 3. The operation of the circuit remains the same, the clipper 11 providing additional resistance to surges.
  • the galvanically isolated connection 7 will consist of a magnetic coupling produced by a transformer whose primary winding also forms, at least in part, that of the inductor 6, the secondary being, for its part, connected to connection S.
  • the operation of the electrical circuit remains unchanged.
  • the variation of the current i L in the inductor 6, when the switch 5 is closed, produces at the output a voltage and / or a current at the terminals of the secondary of the transformer 7 which constitute the output signal after rectification by a rectifier not shown .
  • the insulation link galvanic 7 may be placed in series with the load resistor 14, the operation of the elementary circuit remaining the same.
  • the current generator can provide other waveforms variables such as triangular or sinusoidal centered or not on 0 volts. Indeed, it was chosen in the embodiment described above a variable voltage generator producing a square wave to simplify the equations and facilitate the explanation of the operation of the electrical circuit, however in practice we will choose advantageously a voltage generator producing a triangular signal.
  • the invention is not limited to a railway application, but relates to the transmission, in any field, of all or nothing information.
  • the presence of the inductance upstream of the optocoupler makes it possible to smooth the current passing through the optocoupler which then has a low ripple which is favorable for a good service life of the optocoupler.
  • the inductance at the input of the electrical circuit also allows limit the generation of electromagnetic noise that can be transmitted to others equipment.

Landscapes

  • Train Traffic Observation, Control, And Security (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Electronic Switches (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Near-Field Transmission Systems (AREA)
  • Remote Monitoring And Control Of Power-Distribution Networks (AREA)
  • Paints Or Removers (AREA)
  • Machines For Laying And Maintaining Railways (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)
EP20010402860 2000-11-24 2001-11-07 Elektrische Schaltungsanordnung zur Meldung von Zustandsinformationen, insbesondere für Eisenbahnmaterial, und System mit einer solchen Einrichtung Expired - Lifetime EP1209709B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0015221A FR2817380B1 (fr) 2000-11-24 2000-11-24 Circuit electrique pour la transmission d'une information d'etat, notamment d'un organe de materiel ferroviaire roulant et systeme electrique incorporant un tel circuit
FR0015221 2000-11-24

Publications (2)

Publication Number Publication Date
EP1209709A1 true EP1209709A1 (de) 2002-05-29
EP1209709B1 EP1209709B1 (de) 2007-01-31

Family

ID=8856857

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20010402860 Expired - Lifetime EP1209709B1 (de) 2000-11-24 2001-11-07 Elektrische Schaltungsanordnung zur Meldung von Zustandsinformationen, insbesondere für Eisenbahnmaterial, und System mit einer solchen Einrichtung

Country Status (10)

Country Link
US (1) US6646362B2 (de)
EP (1) EP1209709B1 (de)
JP (1) JP3809094B2 (de)
AT (1) ATE353161T1 (de)
CA (1) CA2363200C (de)
DE (1) DE60126393T2 (de)
DK (1) DK1209709T3 (de)
ES (1) ES2283384T3 (de)
FR (1) FR2817380B1 (de)
HK (1) HK1048700A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104813427A (zh) * 2012-10-10 2015-07-29 宗拓贝尔照明器材有限公司 用于监控电流回路的运行的系统

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7187158B2 (en) * 2004-04-15 2007-03-06 Rosemount, Inc. Process device with switching power supply
US20060112570A1 (en) * 2004-11-04 2006-06-01 Serdynski David P Power tools, battery chargers and batteries
US7492125B2 (en) * 2004-11-04 2009-02-17 Milwaukee Electric Tool Corporation Power tools, battery chargers and batteries
US7970063B2 (en) * 2008-03-10 2011-06-28 Rosemount Inc. Variable liftoff voltage process field device
US8786128B2 (en) 2010-05-11 2014-07-22 Rosemount Inc. Two-wire industrial process field device with power scavenging
EP3281493A1 (de) * 2015-04-10 2018-02-14 Danmarks Tekniske Universitet Behälter für medizinisches präparat mit mikrowellenbetriebener sensoranordnung
DE102018101517A1 (de) * 2018-01-24 2019-07-25 Ebm-Papst Mulfingen Gmbh & Co. Kg Kontaktschutzbestromung

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4220778A1 (de) * 1992-06-25 1994-01-05 Licentia Gmbh Anordnung zur potentialfreien Überwachung von auf Leitungen übertragenen Wechselspannungen und zur Erzeugung eines binären Signals bei Überschreiten einer vorgebbaren Spannungsschwelle
DE4413467C1 (de) * 1994-04-19 1995-09-28 Siemens Ag Verfahren zum energiearmen Abfragen von binären Zuständen über lange Leitungen
DE19513615A1 (de) * 1994-04-11 1995-10-12 Morita Mfg Kontakterkennungsschaltung, Lasttreibervorrichtung und zahnmedizinische Spritze mit eingebauter Beleuchtungseinrichtung

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2674063B1 (fr) * 1991-03-12 1993-07-09 Valeo Equip Electr Moteur Circuit de detection de l'etat d'un interrupteur, notamment d'une cle de contact dans un regulateur de tension d'alternateur.
JP3457126B2 (ja) * 1996-07-12 2003-10-14 三菱電機株式会社 車両用交流発電機の制御装置
FR2807194B1 (fr) * 2000-03-31 2002-05-31 Alstom Circuit electrique pour la transmission d'une information d'etat, notamment d'un organe de materiel ferroviaire roulant, et systeme electrique incorporant un tel circuit
US6404163B1 (en) * 2001-06-25 2002-06-11 General Motors Corporation Method and system for regulating a charge voltage delivered to a battery

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4220778A1 (de) * 1992-06-25 1994-01-05 Licentia Gmbh Anordnung zur potentialfreien Überwachung von auf Leitungen übertragenen Wechselspannungen und zur Erzeugung eines binären Signals bei Überschreiten einer vorgebbaren Spannungsschwelle
DE19513615A1 (de) * 1994-04-11 1995-10-12 Morita Mfg Kontakterkennungsschaltung, Lasttreibervorrichtung und zahnmedizinische Spritze mit eingebauter Beleuchtungseinrichtung
DE4413467C1 (de) * 1994-04-19 1995-09-28 Siemens Ag Verfahren zum energiearmen Abfragen von binären Zuständen über lange Leitungen

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104813427A (zh) * 2012-10-10 2015-07-29 宗拓贝尔照明器材有限公司 用于监控电流回路的运行的系统
CN104813427B (zh) * 2012-10-10 2017-08-04 宗拓贝尔照明器材有限公司 用于监控电流回路的运行的系统

Also Published As

Publication number Publication date
ATE353161T1 (de) 2007-02-15
JP2002246888A (ja) 2002-08-30
DE60126393T2 (de) 2007-10-25
US20020094703A1 (en) 2002-07-18
DE60126393D1 (de) 2007-03-22
FR2817380A1 (fr) 2002-05-31
CA2363200C (fr) 2008-09-16
HK1048700A1 (en) 2003-04-11
US6646362B2 (en) 2003-11-11
JP3809094B2 (ja) 2006-08-16
DK1209709T3 (da) 2007-06-04
CA2363200A1 (fr) 2002-05-24
ES2283384T3 (es) 2007-11-01
EP1209709B1 (de) 2007-01-31
FR2817380B1 (fr) 2003-01-03

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