DE202010016587U1 - Device for inductive transmission of electrical energy - Google Patents
Device for inductive transmission of electrical energy Download PDFInfo
- Publication number
- DE202010016587U1 DE202010016587U1 DE202010016587U DE202010016587U DE202010016587U1 DE 202010016587 U1 DE202010016587 U1 DE 202010016587U1 DE 202010016587 U DE202010016587 U DE 202010016587U DE 202010016587 U DE202010016587 U DE 202010016587U DE 202010016587 U1 DE202010016587 U1 DE 202010016587U1
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- vehicle
- data signal
- inductance
- power supply
- receiving device
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
- H04L9/32—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials
- H04L9/3226—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials using a predetermined code, e.g. password, passphrase or PIN
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- 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
- B60L53/12—Inductive energy transfer
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- 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
- B60L53/60—Monitoring or controlling charging stations
- B60L53/66—Data transfer between charging stations and vehicles
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/04—Arrangements for transmitting signals characterised by the use of a wireless electrical link using magnetically coupled devices
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- 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
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/10—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
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- 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
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/80—Circuit arrangements or systems for wireless supply or distribution of electric power involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices
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- 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
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/90—Circuit arrangements or systems for wireless supply or distribution of electric power involving detection or optimisation of position, e.g. alignment
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- 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
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- 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
- H02J7/00047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with provisions for charging different types of batteries
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L2209/00—Additional information or applications relating to cryptographic mechanisms or cryptographic arrangements for secret or secure communication H04L9/00
- H04L2209/84—Vehicles
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- 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
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- 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
- Y02T90/12—Electric charging stations
-
- 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
Abstract
Vorrichtung zur induktiven Übertragung elektrischer Energie von einer stationären Einheit (7) mit einer Stromversorgungseinrichtung (10) und einer mit dieser verbundenen Primärinduktivität (8) zu einem benachbart zu der stationären Einheit (7) stehenden Fahrzeug (1) mit einer Sekundärinduktivität (5), dadurch gekennzeichnet, dass das Fahrzeug (1) eine mit der Sekundärinduktivität (5) verbundene und zur Einspeisung eines Datensignals in die Sekundärinduktivität (5) eingerichtete Sendeeinrichtung (6) und die stationäre Einheit (7) eine mit der Primärinduktivität (8) verbundene und zum Empfang eines Datensignals aus der Primärinduktivität (8) eingerichtete Empfangseinrichtung (11) aufweist, und dass die Stromversorgungseinrichtung (10) durch die Empfangseinrichtung (11) in Abhängigkeit vom Inhalt des empfangenen Datensignals zur Bestromung der Primärinduktivität (8) aktivierbar ist.Device for the inductive transmission of electrical energy from a stationary unit (7) with a power supply device (10) and a primary inductance (8) connected to it to a vehicle (1) with a secondary inductance (5) standing adjacent to the stationary unit (7), characterized in that the vehicle (1) has a transmission device (6) connected to the secondary inductance (5) and is set up to feed a data signal into the secondary inductance (5), and the stationary unit (7) has a transmission unit connected to the primary inductance (8) and for Receiving a data signal from the primary inductor (8) has a receiving device (11), and that the power supply device (10) can be activated by the receiving device (11) depending on the content of the received data signal for energizing the primary inductor (8).
Description
Die Erfindung betrifft eine Vorrichtung zur induktiven Übertragung elektrischer Energie nach dem Oberbegriff des Anspruchs 1.The invention relates to a device for inductive transmission of electrical energy according to the preamble of
Beim Laden der Batterie eines Elektrofahrzeugs besteht die Notwendigkeit, den Ladevorgang zu initiieren, wenn das Fahrzeug an einer Ladestation abgestellt wurde und zum Laden bereit ist. Falls zum Laden die Herstellung einer Steckverbindung zwischen Ladestation und Fahrzeug nötig ist, kann dies ohne weiteres von der Ladestation aus detektiert und als Kriterium für den Start des Ladevorgangs verwendet werden. Bei einer induktiven Verbindung zwischen Ladestation und Fahrzeug, die allein durch das Abstellen des Fahrzeugs an der Ladestation unter passender Ausrichtung einer fahrzeugseitigen Sekundärspule zu einer stationären Primärspule hergestellt wird, gestaltet sich die Feststellung der Ladebereitschaft des Fahrzeugs schwieriger. Eine mögliche Lösung ist der Aufbau einer Funkverbindung zwischen dem Fahrzeug und der Ladestation, wozu jedoch beide eigens mit einer entsprechenden Hardware zur Kommunikation per Funk ausgerüstet werden müssen.When charging the battery of an electric vehicle, there is a need to initiate the charging process when the vehicle has been parked at a charging station and ready for charging. If the production of a plug connection between the charging station and the vehicle is necessary for charging, this can easily be detected from the charging station and used as a criterion for the start of the charging process. In an inductive connection between the charging station and the vehicle, which is made solely by the parking of the vehicle at the charging station with proper alignment of a vehicle-side secondary coil to a stationary primary coil, the determination of the readiness to charge the vehicle designed difficult. One possible solution is to set up a radio link between the vehicle and the charging station, which, however, requires both to be specially equipped with appropriate hardware for communication by radio.
Der Erfindung liegt die Aufgabe zugrunde, für das induktive Laden eines Elektrofahrzeugs an einer Ladestation eine einfache und zuverlässige Lösung zur Initiierung des Ladevorgangs aufzuzeigen.The invention has for its object to show for the inductive charging of an electric vehicle to a charging station, a simple and reliable solution for initiating the charging process.
Diese Aufgabe wird erfindungsgemäß durch eine Vorrichtung mit den Merkmalen des Anspruchs 1 gelöst. Vorteilhafte Ausgestaltungen der Erfindung sind in den Unteransprüchen angegeben.This object is achieved by a device having the features of
Erfindungsgemäß weist bei einer gattungsgemäßen Vorrichtung zur induktiven Übertragung elektrischer Energie das Fahrzeug eine mit der fahrzeugseitigen Sekundärinduktivität verbundene und zur Einspeisung eines Datensignals in die Sekundärinduktivität eingerichtete Sendeeinrichtung und die stationäre Einheit eine mit Primärinduktivität verbundene und zum Empfang eines Datensignals aus der Primärinduktivität eingerichtete Empfangseinrichtung auf und die mit der Primärinduktivität verbundene Stromversorgungseinrichtung ist durch die Empfangseinrichtung in Abhängigkeit vom Inhalt des empfangenen Datensignals zur Bestromung der Primärinduktivität aktivierbar. Hierdurch wird die Möglichkeit geschaffen, die Energieübertragung von der Ladestation zur Fahrzeugbatterie vom Fahrzeug aus unter Verwendung der induktiven Verbindung, die für die Energieübertragung ohnehin hergestellt werden muss, zu initiieren. Der zusätzliche Hardwareaufwand bleibt daher vergleichsweise gering. Insbesondere werden keine Antennen und keine von dem Energieübertragungssystem separat aufgebauten Sende- und Empfangseinrichtungen mit jeweiligen Schnittstellen benötigt. Durch die für die Energieübertragung erfolgende Annäherung der Sekundärinduktivität an die Primärinduktivität ist die bei der Kommunikation zur Initiierung des Ladevorgangs zu überbrückende Entfernung sehr klein, so dass auch mit einer geringen Signalleistung eine gute Übertragungsqualität erzielbar ist.According to the invention, in a generic device for inductive transmission of electrical energy, the vehicle has a transmitting device connected to the vehicle-side secondary inductance and furnished for feeding a data signal into the secondary inductance, and the stationary unit has a receiving device connected to primary inductance and configured to receive a data signal from the primary inductance Power supply device connected to the primary inductance can be activated by the receiving device as a function of the content of the received data signal for energizing the primary inductance. In this way, the possibility is created to initiate the transfer of energy from the charging station to the vehicle battery from the vehicle using the inductive connection, which must be established anyway for the energy transfer. The additional hardware effort therefore remains relatively low. In particular, no antennas and no transmitting and receiving devices with respective interfaces that are constructed separately from the energy transmission system are required. By taking place for the energy transfer approximation of the secondary inductance to the primary inductance in the communication to initiate the charging process to be bridged distance is very small, so that even with a low signal power good transmission quality can be achieved.
Bevorzugt weist die Sendeeinrichtung einen Speicher mit einem fahrzeugspezifischen Code auf und das von ihr abgegebene Datensignal enthält diesen fahrzeugspezifischen Code. Dies eröffnet die Möglichkeit, in der Empfangseinrichtung einen Vergleich mit einem dort gespeicherten Autorisierungscode vorzunehmen. Hierdurch kann eine fehlerhafte Aktivierung der Stromversorgung der Primärinduktivität durch ein Störsignal zuverlässig vermieden werden und es kann vor dem Beginn des Ladevorgangs die Berechtigung des Fahrzeugs zum Bezug von Energie an der Ladestation überprüft und eine unzulässige Entnahme von Energie verhindert werden.The transmitting device preferably has a memory with a vehicle-specific code and the data signal output by it contains this vehicle-specific code. This opens up the possibility of making a comparison in the receiving device with an authorization code stored there. In this way, an erroneous activation of the power supply of the primary inductance can be reliably avoided by an interference signal and it can be checked before the start of the charging the authorization of the vehicle for the purchase of energy at the charging station and an inadmissible removal of energy can be prevented.
Die Abgabe eines Datensignals mit einem fahrzeugspezifischen Code durch die Sendeeinrichtung kann manuell durch den Fahrzeugbediener auslösbar sein. Es ist aber auch möglich, dass sie automatisch in Abhängigkeit von der durch eine fahrzeugseitige Sensorik erfassten Position des Fahrzeugs relativ zu der stationären Einheit oder von der Geschwindigkeit des Fahrzeugs ausgelöst wird, d. h. wenn durch eine fahrzeugseitige Sensorik festgestellt wurde, dass das Fahrzeug in einer zum Laden geeigneten Position an einer Ladestation abgestellt wurde, oder wenn es sich mit einer sehr geringen, auf ein bevorstehendes Abstellen hindeutenden Geschwindigkeit bewegt.The delivery of a data signal with a vehicle-specific code by the transmitting device can be manually triggered by the vehicle operator. But it is also possible that it is automatically triggered depending on the detected by a vehicle-mounted sensors position of the vehicle relative to the stationary unit or the speed of the vehicle, d. H. if it has been determined by a vehicle-mounted sensor that the vehicle has been parked in a loading-appropriate position at a charging station, or if it moves with a very low, indicative of an imminent parking speed.
Die Erfindung eröffnet darüber hinaus auch die Möglichkeit, von der Ladestation aus eine vorzeitige Entfernung des Fahrzeugs zu detektieren, indem die Abgabe eines den fahrzeugspezifischen Code enthaltenden Datensignals durch die Sendeeinrichtung nach ihrer Auslösung periodisch fortgesetzt wird und das fortgesetzte Eintreffen eines den Autorisierungscode enthaltenden Signals von der Empfangseinrichtung überwacht wird. Ein über ein vorbestimmtes Zeitintervall hinausgehendes Ausbleiben des Empfangs eines solchen Datensignals ist in diesem Fall ein klares Anzeichen für eine Entfernung des Fahrzeugs von der Ladestation, aufgrund dessen eine Deaktivierung der Stromversorgungseinrichtung durch die Empfangseinrichtung erfolgen kann.The invention also opens up the possibility of detecting premature removal of the vehicle from the charging station by periodically resuming the delivery of a data signal containing the vehicle-specific code by the transmitting device after it has been triggered and the continued arrival of a signal containing the authorization code from the vehicle Receiving device is monitored. In this case, a failure to receive such a data signal beyond a predetermined time interval is a clear indication of a removal of the vehicle from the charging station, as a result of which the power supply device can be deactivated by the receiving device.
Fahrzeugseitig kann die Abgabe eines den fahrzeugspezifischen Code enthaltenden Datensignals durch die Sendeeinrichtung entweder manuell durch den Fahrzeugbediener beendbar sein, oder sie kann automatisch in Abhängigkeit von der durch eine fahrzeugseitige Sensorik erfassten Position des Fahrzeugs relativ zu der stationären Einheit, d. h. wenn das Fahrzeug von der Ladestation entfernt wurde, beendet werden. Zur Feststellung der Entfernung kann dieselbe Sensorik wie zur Feststellung der Annäherung benutzt werden. Alternativ hierzu kann der Verlauf der induktiven Energieübertragung als Kriteium herangezogen werden oder es kann für die Abgabe des Datensignals eine Höchstdauer festgelegt werden, nach deren Ablauf sie eingestellt wird.On the vehicle side, the delivery of a vehicle-specific code-containing data signal by the transmitting device either manually be terminated by the vehicle operator, or it can automatically in dependence on the detected by a vehicle-mounted sensors position of the vehicle relative to the stationary unit, ie when the vehicle has been removed from the charging station, be terminated. To determine the distance, the same sensor can be used as for determining the approach. Alternatively, the course of the inductive energy transfer can be used as a criterion or it can be set for the delivery of the data signal, a maximum duration, after the expiry is set.
Weitere Einzelheiten und Vorteile der Erfindung offenbart die nachfolgende Beschreibung eines Ausführungsbeispiels anhand der Zeichnungen. In diesen zeigtFurther details and advantages of the invention are disclosed in the following description of an embodiment with reference to the drawings. In these shows
Wie das Blockschaltbild von
Zum Laden der Batterie
Um dies zu erreichen, ist die Ladestation
In
Wenn die Platzierung des Fahrzeugs
Das Datensignal wird in der Empfangseinrichtung
Im einfachsten Fall kann es vorgesehen sein, dass der Benutzer des Fahrzeugs
Über die Initiierung des Ladevorgangs hinaus kann erfindungsgemäß auch dessen vorzeitige Beendigung durch eine Entfernung des Fahrzeugs
Falls die Aussendung des Datensignals periodisch fortgesetzt wird, kann auch die Deaktivierung der Sendeeinrichtung
Um während des Ladevorgangs das für die Ladeelektronik
Parallel zu der Primärspule
Claims (6)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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DE202010016587U DE202010016587U1 (en) | 2010-12-14 | 2010-12-14 | Device for inductive transmission of electrical energy |
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DE202010016587U DE202010016587U1 (en) | 2010-12-14 | 2010-12-14 | Device for inductive transmission of electrical energy |
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DE202010016587U1 true DE202010016587U1 (en) | 2012-03-15 |
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DE202010016587U Expired - Lifetime DE202010016587U1 (en) | 2010-12-14 | 2010-12-14 | Device for inductive transmission of electrical energy |
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R082 | Change of representative |
Representative=s name: PATENTANWAELTE CHARRIER RAPP & LIEBAU, DE Effective date: 20140828 Representative=s name: CHARRIER RAPP & LIEBAU PATENTANWAELTE PARTG MB, DE Effective date: 20140828 |
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R081 | Change of applicant/patentee |
Owner name: CONDUCTIX-WAMPFLER GMBH, DE Free format text: FORMER OWNER: IPT TECHNOLOGY GMBH, 79588 EFRINGEN-KIRCHEN, DE |
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R082 | Change of representative |
Representative=s name: PATENTANWAELTE CHARRIER RAPP & LIEBAU, DE Representative=s name: CHARRIER RAPP & LIEBAU PATENTANWAELTE PARTG MB, DE |
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R151 | Utility model maintained after payment of second maintenance fee after six years | ||
R152 | Utility model maintained after payment of third maintenance fee after eight years | ||
R071 | Expiry of right |