DE3411234C1 - Device for transmitting information via supply lines - Google Patents

Device for transmitting information via supply lines

Info

Publication number
DE3411234C1
DE3411234C1 DE3411234A DE3411234A DE3411234C1 DE 3411234 C1 DE3411234 C1 DE 3411234C1 DE 3411234 A DE3411234 A DE 3411234A DE 3411234 A DE3411234 A DE 3411234A DE 3411234 C1 DE3411234 C1 DE 3411234C1
Authority
DE
Germany
Prior art keywords
frequency
battery
supply lines
point
coupling
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.)
Expired
Application number
DE3411234A
Other languages
German (de)
Inventor
Norbert Ing.(grad.) 7320 Göppingen Bissinger
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.)
Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV
Original Assignee
Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV
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Priority to DE3411234A priority Critical patent/DE3411234C1/en
Application granted granted Critical
Publication of DE3411234C1 publication Critical patent/DE3411234C1/en
Expired legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/10—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles characterised by the energy transfer between the charging station and the vehicle
    • B60L53/14—Conductive energy transfer
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
    • H02J13/00006—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment
    • H02J13/00007—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment using the power network as support for the transmission
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
    • H02J13/00006—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment
    • H02J13/00007—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment using the power network as support for the transmission
    • H02J13/00009—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment using the power network as support for the transmission using pulsed signals
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/00032—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by data exchange
    • H02J7/00036—Charger exchanging data with battery
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2200/00—Type of vehicles
    • B60L2200/40—Working vehicles
    • B60L2200/42—Fork lift trucks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2240/00—Control parameters of input or output; Target parameters
    • B60L2240/40—Drive Train control parameters
    • B60L2240/54—Drive Train control parameters related to batteries
    • B60L2240/545—Temperature
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2240/00—Control parameters of input or output; Target parameters
    • B60L2240/40—Drive Train control parameters
    • B60L2240/54—Drive Train control parameters related to batteries
    • B60L2240/547—Voltage
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J2310/00—The network for supplying or distributing electric power characterised by its spatial reach or by the load
    • H02J2310/40—The network being an on-board power network, i.e. within a vehicle
    • H02J2310/48—The network being an on-board power network, i.e. within a vehicle for electric vehicles [EV] or hybrid vehicles [HEV]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10—Technologies relating to charging of electric vehicles
    • Y02T90/14—Plug-in electric vehicles
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10—Technologies relating to charging of electric vehicles
    • Y02T90/16—Information or communication technologies improving the operation of electric vehicles

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Secondary Cells (AREA)

Abstract

The invention relates to a device for transmitting information via supply lines in the case of battery-operated vehicles which are connected to a supply point (docked), in order to charge the batteries. The measurements for the terminal voltage of the batteries are coupled in on the vehicle side on the incoming and outgoing lead for the charging current, via coupling elements, are coupled out on the side of the stationary charging apparatus and are supplied to the charging apparatus as control signals for the battery charging current. The information can be converted into radio-frequency signals by means of a voltage/frequency converter and can be coupled in or out on the supply lead, via coupling capacitors. Decoupling elements can be provided between the battery and the coupling-in point on the vehicle side and between the charging apparatus and the stationary coupling-out point. The device according to the invention allows the charging current of the batteries to be regulated in an optimum manner. The sliding contacts on a supply point for the transmission of the terminal voltage can be dispensed with.

Description

Die Erfindung betrifft eine Einrichtung zur Übertragung von Informationen über Versorgungsleitungen nach dem Oberbegriff des Anspruches 1. Eine ähnliche Einrichtung ist bereits aus der Druckschrift der Firma micro-electric GmbH, Osterdeich 92, 2800 Bremen 1, bekannt.The invention relates to a device for transmitting information via supply lines according to the preamble of claim 1. A similar device is already from the publication of the company micro-electric GmbH, Osterdeich 92, 2800 Bremen 1, known.

Beim Laden von Akkumulatoren müssen die vorgeschriebenen Ladeströme bzw. Ladespannungen im Interesse einer langen Lebensdauer der Batterien genau eingehalten werden. Werden Batterien in Ladestationen ortsfest geladen, so können Ladespannungen und Ladeströme an der Batterie problemlos überwacht werden. Sollen Batterien jedoch in ortsveränderlichen Fahrzeugen (Flurförderfahrzeuge) an verschiedenen Zapfoder Andockstellen geladen oder gepuffert werden, so bereitet das genaue Erfassen der Klemmenspannungen der Batterien Schwierigkeiten. Es ist jedoch besonders wichtig, daß beim Laden die genaue Klemmenspannung der Batterien erfaßt und damit der Ladestrom gesteuert wird. Zu niedrige Ladeschlußspannung führt zu nicht richtig formierten Platten, zu hohe Ladeschlußspannung führt zu verstärktem Gasen und zu verstärkter thermischer Beanpsruchung der Batterien.When charging accumulators, the prescribed charging currents or charging voltages must be of interest a long service life of the batteries are strictly adhered to. Are batteries in charging stations stationary charged, charging voltages and charging currents on the battery can be monitored without any problems. Should batteries, however, be connected to different Zapfoder in mobile vehicles (industrial trucks) Docking points are loaded or buffered, this prepares the precise recording of the terminal voltages the batteries trouble. However, it is particularly important that the terminal voltage is accurate when charging of the batteries and thus the charging current is controlled. Too low end-of-charge voltage does not lead to Correctly formed plates, excessively high end-of-charge voltage leads to increased gases and increased thermal Stress on the batteries.

Die genaue Erfassung der Klemmenspannung bereitet deshalb Schwierigkeiten, da bei relativ hohen Ladeströmen die Spannungsabfälle auf den Ladeleitungen, an den Klemmstellen der Leitungen und an den Übergängen zwischen Stromschienen und Schleifkontakten bei Fahrzeugen, die zum Laden nur andocken, auf die Messung eingehen (AEG-Telefunken-Druckschrift »Ladegeräte für Elektrofahrzeugbatterien«, Juli 1982). Erschwerend ist, daß die Klemm- und Schleifkontakte nicht konstant bleiben und daß bei verschiedenen Zapfstellen auch durch unterschiedliche Leitungslängen die Spannungsabfälle nicht'konstant bleiben und damit durch die Einstellung des Ladegerätes nicht korrigiert werden können. Abhilfe könnte geschaffen werden, wenn parallel zum Ladeströmweg Fühlerleitungen bis zu den Batterieklemmen verlegt werden, die nur die Klemmenspannung der Batterie zum hochohmigen Steuereingang des Ladegerätes zurückführen. Dies ist auch bei stationären Netz- und Ladegeräten für höhere Ströme üblich. Diese Technik würde jedoch auch eine getrennte Leitungsführung bis hin zu den Klemmen von Batterien und damit auch bei Zapfstellen für Fahrzeuge mit Schleifern weitere Schleifkontakte erfordern. Es wurde deshalb nach Wegen gesucht, die dann zusätzlich erforderlichen Schleifleitungen zu umgehen bzw. schon vorhandene.Anlagen ohne Fühlerleitungen für die verbesserte Technik nachrüstbar zu machen.The exact detection of the terminal voltage is difficult because of the relatively high charging currents the voltage drops on the charging cables, at the terminal points of the cables and at the transitions between busbars and sliding contacts in vehicles that only dock for charging on the Measurement received (AEG-Telefunken publication "Chargers for Electric Vehicle Batteries", July 1982). Aggravating is that the clamping and sliding contacts do not remain constant and that at different taps the voltage drops do not remain constant even due to different cable lengths and thus cannot be corrected by setting the charger. A remedy could be created if sensor lines are laid parallel to the charging flow path up to the battery terminals, which only the Feed the terminal voltage of the battery back to the high-resistance control input of the charger. This is also common for stationary power supplies and chargers for higher currents. However, this technique would also be one Separate cable routing up to the terminals of batteries and thus also for tapping points for vehicles require further sliding contacts with sliders. It was therefore looked for ways, which then in addition to bypass the necessary conductor lines or existing systems without sensor lines for the improved To make technology retrofittable.

Weiterhin hat die Firma Hoppecke ein Verfahren patentiert (»Hoppecke Batterien«-Druckschrift, Form. 5816/03.84/3.), nach dem die Temperatur der Gase, die sich beim Laden von Batterien über die Gasungsspannung hinaus bilden, in einem Katalysator gemessen und dadurch der Ladestrom gesteuert wird. Dieses Verfahren erfordert allerdings Sensorleitungen und ist — wegen den zuvor genannten Schleifkontakten an Mehrfach-Zapfstellen — für Flurförderfahrzeuge schwieriger realisierbar.Furthermore, the Hoppecke company has patented a process ("Hoppecke Batteries" publication, Shape. 5816 / 03.84 / 3.), According to which the temperature of the gases that are generated when charging batteries via the gassing voltage Form addition, measured in a catalytic converter and thereby the charging current is controlled. This method however, it requires sensor lines and is - because of the sliding contacts mentioned above - at multiple tapping points - more difficult to implement for industrial trucks.

Aufgabe der Erfindung ist es, bei batteriebetriebenen Fahrzeugen, die an eine Versorgungsstelle anlegen (andocken), die Meßwerte störungsfrei und mit geringem Aufwand zwischen Ladeeinrichtungen und Batterien zu übertragen.The object of the invention is, in battery-operated vehicles that attach to a supply point (dock), the measured values without interference and with little effort between charging devices and batteries transfer.

Erfindungsgemäß wird diese Aufgabe durch die im Anspruch 1 angegebenen Maßnahmen gelöst. Ausgestaltungen der Erfindung sind in den Unteransprüchen beschrieben.According to the invention, this object is achieved by the measures specified in claim 1. Refinements of the invention are described in the subclaims.

Die Erfindung wird beispielhaft anhand der Zeichnung F i g. 1 erläutert.The invention is illustrated by way of example with reference to the drawing F i g. 1 explained.

In unmittelbarer Nähe der Batterie 1, deren Klemmenspannung überwacht werden soll, wird (in diesem Fall auf dem Fahrzeug 2) ein Spannungs-Frequenz-Wandler 3 (f/U-Wandler) angeschlossen. Spannungs-Frequenz-Wandler sind als Bausteine oder als integrierte Schaltungen erhältlich. Dieser Baustein liefert ein Signal, dessen Frequenz / der angelegten Spannung U proportional ist. Dieses Signal mit der Frequenz f wird mit Hilfe der Kondensatoren 4 und 5 innerhalb des Fahrzeuges 2 auf die Ladeleitungen mit den Schleifkontakten 6 und 7 gekoppelt. Es wird von dort über die fest installierten Ladeleitungen 8 und 9 zur Ladestation 10 übertragen. Diese Ladestation 10 enthält einen Frequenz-Spannungswandler 11, der die ursprünglich vom Spannungs-Frequenz-Wandler 3 gelieferte Frequenz wieder in eine dazu proportionale Spannung umsetzt.In the immediate vicinity of the battery 1, the terminal voltage of which is to be monitored, a voltage-frequency converter 3 (f / UW andler) is connected (in this case on the vehicle 2). Voltage-frequency converters are available as modules or as integrated circuits. This module delivers a signal whose frequency / the applied voltage U is proportional. This signal with the frequency f is coupled with the help of the capacitors 4 and 5 inside the vehicle 2 to the charging lines with the sliding contacts 6 and 7. It is transmitted from there to the charging station 10 via the permanently installed charging lines 8 and 9. This charging station 10 contains a frequency-voltage converter 11, which converts the frequency originally supplied by the voltage-frequency converter 3 back into a voltage proportional to it.

Diese wird über die Eingänge 12 und 13 zur Steuerung des eigentlichen Batterieladegerätes 14 wirksam. Der Batterieladestrom wird an den Klemmen 15 und 16 abgenommen und kann auch andere Schleifleitungen 24 und 17 versorgen.This is used for control via inputs 12 and 13 the actual battery charger 14 effective. The battery charging current is taken from terminals 15 and 16 and can also supply other conductor lines 24 and 17.

Zur Verbesserung der Signalübertragung körinen die Ausgänge 15 und 16 des Ladegerätes 14 und der Eingang der Batterie 1 über Drosseln 18, 19, 2Ö und 21 gegen höherfrequente Signale, die der Wandler 3 lief ert, verblockt werden. Diese Drosseln 18,19,2Ö und 21 sol- ίο len einen kleinen Gleichstromwiderstand haben. Im einfachsten Fall werden sie dadurch realisiert, daß nur Ferrit-Ringkerne über die zu verdrosselnden Leitungsstükke geschoben werden. Der Leitungsabschnitt, der vom Ringkern umgeben ist, weist eine höhere Induktivität auf.To improve the signal transmission, the outputs 15 and 16 of the charger 14 and the input körinen the battery 1 via chokes 18, 19, 20 and 21 against higher-frequency signals that the converter 3 is delivering, be blocked. These chokes 18,19,2Ö and 21 sol- ίο len have a small DC resistance. In the simplest case, they are implemented in that only ferrite toroidal cores be pushed over the line sections to be throttled. The line section that runs from the Ring core is surrounded, has a higher inductance.

Weiterhin muß am Eingang des Frequenz-Spännungs-Wandlers 11 dafür gesorgt werden, daß dieser die Ausgänge 15 und 16 des Ladegerätes 14 nicht kurzschließt. Dies geschieht hier mit Koppelkondertsätören 22 und 23.Furthermore, at the input of the frequency-to-voltage converter 11 ensure that this does not short-circuit the outputs 15 and 16 of the charger 14. This happens here with Koppelkondertsätören 22 and 23.

Es ist weiterhin möglich, die Bauelemente 18,19, 20, 21,5,4,22 und 23 durch andere Bauelemente beispielsweise geeignete Transformatoren und Drosseln zu ersetzen. Sie dienen nur dazu, den Gleichsiromweg des Ladekreises vom Wechselstromweg des Signälkreises zjjjrejinen. Nach dieser Methode können auch andere Batterieparameter beispielsweise Elektrolyttemperatur, Gasdruck und Gasungsgrad an das Ladegerät entweder im Zeitmultiplex- oder im Frequenzmultiplexverfahren zurückgemeldet werden.It is still possible to use the components 18, 19, 20, 21,5,4,22 and 23 by other components, for example to replace suitable transformers and chokes. They only serve to follow the Gleichsiromweg des Charging circuit from the alternating current path of the signal circuit zjjjrejinen. Others can use this method as well Battery parameters such as electrolyte temperature, gas pressure and degree of gassing to the charger either be reported back in time division multiplex or frequency division multiplexing.

Zum Erfassen der Parameter-Klemmenspannung, Gasungsgrad, Elektrolyttemperatur, Temperatur der Gase, lassen sich an den zu ladenden Batterien geeignete Sensoren einsetzen. Werden die Sensorsignale in zu diesen Parametern proportionale frequenzgesteuerte Wechselspannungen umgesetzt, so können diese auf die Ladeleitungen gekoppelt und am Ladegerät ausgewertet werden. Da sich die zu übertragenden Informationen in der Frequenz der Sensorsignale befinden und sich die Frequenz durch die Übertragungsstrecke nicht beeinflussen läßt, erhält man eine sehr sichere Rückmeldung der Ladeparameter von Batterien.For recording the parameter terminal voltage, degree of gassing, electrolyte temperature, temperature of the Gases, suitable sensors can be used on the batteries to be charged. Are the sensor signals in to frequency-controlled AC voltages proportional to these parameters are implemented, so these can be applied to the Charging lines coupled and evaluated on the charger will. Since the information to be transmitted is in the frequency of the sensor signals and the If the frequency is not influenced by the transmission path, a very reliable feedback is obtained the charging parameters of batteries.

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Claims (5)

Patentansprüche:Patent claims: 1. Einrichtung zur Übertragung einer Information über Versorgungsleitungen, wobei an einer Stelle der Versorgungsleitungen die zu übertragende Information als Hochfrequenzsignal über je ein Koppelelement auf die Hin- und Rückleitung einkoppelbar ist und an einer anderen Stelle der Versorgungsleitungen übe"r je ein Koppelelement auskoppelbar ist, dadurch gekennzeichnet, daß sie bei Batterieladeeinheiten von batteriebetriebenen Fahrzeugen, die an einer Versorgungsstelle anlegen (andocken) verwendet wird.1. Device for the transmission of information via supply lines, with at one point the supply lines receive the information to be transmitted as a high-frequency signal via a coupling element each can be coupled into the outgoing and return lines and at another point on the supply lines a coupling element can be decoupled via "r, characterized in that it is at Battery charging units of battery-operated vehicles that are moored (docked) at a supply point is used. 2. Einrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Klemmenspannung der auf einem Fahrzeug (2) montierten Batterien (1) gemessen, mittels eines Sjpannungs-Frequenz-Wandlers (3) in Hochfrequenzsignale umgewandelt wird, daß Kondensatoren (4, 5) vorgesehen sind zur Einkopplung der Hochfrequenzsignale auf die fahrzeugseitigen Versorgungsleitungen (6, 7) ,daß Kondensatoren (22,23) vorgesehen sind zur Auskopplung der Hochfrequenzsignale auf der stationären Seite der Versorgungsleitungen (8, 9), daß ein Frequenz-Spannungs-Wandler (ti) vorgesehen ist zur Rückwandlung der Hochfrequenzsignale in die die Klemmenspannung der Batterie, die an den Klemmen (12,13) dem Ladegerät (14) als Steuersignal für den Batterieladestrom zugeführt wird.2. Device according to claim 1, characterized in that the terminal voltage of the on one Vehicle (2) mounted batteries (1) measured by means of a voltage-frequency converter (3) in High-frequency signals is converted so that capacitors (4, 5) are provided for coupling the high-frequency signals on the vehicle-side supply lines (6, 7) that capacitors (22, 23) are provided for coupling out the high-frequency signals on the stationary side of the supply lines (8, 9) that a frequency-voltage converter (ti) is provided for converting the high-frequency signals back into the terminal voltage the battery connected to the terminals (12, 13) of the charger (14) as a control signal for the battery charging current is fed. 3. Einrichtung nach Anspruch 1 und 2, dadurch gekennzeichnet, daß in den Versorgungsleitungen (6, 7, 8, 9) zwischen Batterie und fahrzeugseitiger Einkoppelstelle und zwischen Ladegerät und stationärer Auskoppelstelle Entkoppelelemente (18, 19, 20,21) für die Hochfrequenzsignale vorgesehen sind.3. Device according to claim 1 and 2, characterized in that in the supply lines (6, 7, 8, 9) between battery and vehicle coupling point and between charger and stationary Decoupling point decoupling elements (18, 19, 20, 21) are provided for the high-frequency signals. 4. Einrichtung nach Anspruch 1 und 3, dadurch gekennzeichnet, daß die zu übertragenden Signale aus einer hochfrequenten Trägerfrequenz bestehen, denen die zu übertragenden Informationen analog oder digital aufmoduliert sind.4. Device according to claim 1 and 3, characterized in that the signals to be transmitted consist of a high-frequency carrier frequency to which the information to be transmitted is analog or are digitally modulated. 5. Einrichtung nach Anspruch 1 bis 4, dadurch gekennzeichnet, daß die Informationen über eine Versorgungsleitung (6, 8) und Masse übertragen werden. 5. Device according to claim 1 to 4, characterized in that the information via a supply line (6, 8) and mass are transferred.
DE3411234A 1984-03-27 1984-03-27 Device for transmitting information via supply lines Expired DE3411234C1 (en)

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3528659A1 (en) * 1985-08-09 1987-02-19 Jungheinrich Kg Battery charging installation
DE4010640A1 (en) * 1990-04-03 1991-10-10 Forschungszentrum Juelich Gmbh Winching device with radio-controlled grab - esp. for stacking radioactive waste casks in borehole
DE4307968A1 (en) * 1992-03-12 1993-09-16 Burr Brown Corp
FR2740264A1 (en) * 1995-10-24 1997-04-25 Em Microelectronic Marin Sa ELECTRIC BATTERY MANAGEMENT DEVICE
WO1999032323A1 (en) * 1997-12-23 1999-07-01 Amerigon, Inc. Radio frequency energy management system
US6184656B1 (en) 1995-06-28 2001-02-06 Aevt, Inc. Radio frequency energy management system
WO2011013387A3 (en) * 2009-07-31 2011-09-01 Panasonic Corporation Charging apparatus and vehicle

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DE1588326A1 (en) * 1966-03-18 1970-07-23 Int Standard Electric Corp Parking lot loading facility
GB1282974A (en) * 1969-07-24 1972-07-26 Paul Justin Johnson Automatic battery charger
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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3528659A1 (en) * 1985-08-09 1987-02-19 Jungheinrich Kg Battery charging installation
DE4010640A1 (en) * 1990-04-03 1991-10-10 Forschungszentrum Juelich Gmbh Winching device with radio-controlled grab - esp. for stacking radioactive waste casks in borehole
DE4307968A1 (en) * 1992-03-12 1993-09-16 Burr Brown Corp
US6184656B1 (en) 1995-06-28 2001-02-06 Aevt, Inc. Radio frequency energy management system
FR2740264A1 (en) * 1995-10-24 1997-04-25 Em Microelectronic Marin Sa ELECTRIC BATTERY MANAGEMENT DEVICE
EP0771043A1 (en) * 1995-10-24 1997-05-02 EM Microelectronic-Marin SA Management device for electric batteries
WO1999032323A1 (en) * 1997-12-23 1999-07-01 Amerigon, Inc. Radio frequency energy management system
WO2011013387A3 (en) * 2009-07-31 2011-09-01 Panasonic Corporation Charging apparatus and vehicle
US9007016B2 (en) 2009-07-31 2015-04-14 Panasonic Intellectual Property Management Co., Ltd. Charging apparatus and vehicle

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