WO2016055182A1 - System and method for assistance for the positioning of a secondary coil at a primary coil for inductive energy transmission - Google Patents

System and method for assistance for the positioning of a secondary coil at a primary coil for inductive energy transmission Download PDF

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Publication number
WO2016055182A1
WO2016055182A1 PCT/EP2015/067247 EP2015067247W WO2016055182A1 WO 2016055182 A1 WO2016055182 A1 WO 2016055182A1 EP 2015067247 W EP2015067247 W EP 2015067247W WO 2016055182 A1 WO2016055182 A1 WO 2016055182A1
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WO
WIPO (PCT)
Prior art keywords
ultrasonic
ultrasound
primary coil
secondary coil
source
Prior art date
Application number
PCT/EP2015/067247
Other languages
German (de)
French (fr)
Inventor
Ahmet Kilic
Jan Sparbert
Original Assignee
Robert Bosch Gmbh
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Filing date
Publication date
Application filed by Robert Bosch Gmbh filed Critical Robert Bosch Gmbh
Publication of WO2016055182A1 publication Critical patent/WO2016055182A1/en

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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
    • B60L53/30—Constructional details of charging stations
    • B60L53/35—Means for automatic or assisted adjustment of the relative position of charging devices and vehicles
    • B60L53/36—Means for automatic or assisted adjustment of the relative position of charging devices and vehicles by positioning the vehicle
    • 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
    • B60L53/30—Constructional details of charging stations
    • B60L53/35—Means for automatic or assisted adjustment of the relative position of charging devices and 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
    • 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
    • Y02T90/12—Electric charging stations

Definitions

  • the present invention relates to a system and a method for assisting the positioning of a secondary coil on a primary coil for inductive energy transmission.
  • the inductive charging of an electrical energy storage represents an innovative
  • the electric vehicle can be positioned using sensors of a parking aid of the vehicle in a computer-aided maneuvering operation via a coil of an inductive charging station.
  • the present invention provides a
  • An assistance system for positioning a secondary coil on a primary coil for inductive power transmission comprising an ultrasonic source configured to emit an ultrasonic signal; a receiving device having at least one ultrasonic receiver adapted to receive the ultrasonic signals emitted by the ultrasonic source; and a processing device configured to receive the one or more
  • the present invention provides a method of assisting positioning a secondary coil on a primary coil for inductive power transmission.
  • the method comprises the steps of providing an ultrasound source to the primary coil and a
  • Receiving device on the secondary coil or providing a receiving device to the primary coil and an ultrasonic source to the secondary coil, wherein the receiving device at least one
  • Ultrasonic receiver comprises; the emission of an ultrasonic signal by the ultrasonic source; receiving the emitted ultrasound signal by the one or more ultrasound receivers; and determining a direction between the receiving device and the ultrasound source based on the ultrasound signals received by the one or more ultrasound receivers.
  • One idea underlying the present invention is to determine a spatial offset between the primary coil and the secondary coil of an inductive power transmission system by transmitting ultrasonic signals between the position of the primary coil and the position of the secondary coil. By evaluating the transit times of the ultrasonic signals between
  • a spatial offset between the two coils can be determined. In this way it is possible to determine the direction in which one of the two coils, preferably the secondary coil, has to be moved in order to optimally position the coil pair of primary coil and secondary coil with respect to one another.
  • Positioning the coils provides a robust, cost-effective and highly reliable coil positioning assistance system.
  • the direction determination is largely independent of external influences, such as brightness, fog and the like.
  • the assistance system according to the invention can be implemented in a particularly cost-effective manner.
  • the processing device is further configured to adjust a distance between the receiving device and the
  • This distance thus also corresponds to the distance between the primary coil and the secondary coil. If, in addition to the direction, the distance between primary coil and secondary coil is also determined, this information stands for optimal positioning of
  • the ultrasound source comprises a plurality of ultrasound transmitters which are arranged at predetermined spatial distances from one another.
  • the use of a plurality of ultrasound transmitters arranged in a defined manner further improves the determination of the relative position between primary coil and secondary coil. In this way, the secondary coil can then be approached from a predetermined preferred direction to the primary coil.
  • the ultrasound transmitters each emit an individually coded ultrasound signal.
  • the receiving device can easily determine from which ultrasound transmitter the respective ultrasound signal was transmitted. Thus, the determination of the
  • Relative position between primary coil and secondary coil can be further improved.
  • the ultrasound transmitters sequentially transmit one ultrasound signal in succession.
  • the assistance system further comprises a display device, which is adapted to that of the
  • Processing device to indicate certain direction.
  • an additionally determined distance between the ultrasonic source and the ultrasonic source is
  • Receiving device also be displayed. In this way it is very easy for a user to optimally position the secondary coil over the primary coil.
  • the assistance system further comprises a communication device which is designed to transmit and / or receive data via the direction determined by the processing device.
  • the communication is wireless.
  • the communication device may already be one existing communication device, which is present for data exchange between the primary side and secondary side of an inductive charging system. In this way, for example, a synchronization between the ultrasound source and receiving device is possible.
  • the secondary coil is in one
  • the primary coil can be arranged in a charging station for the electric vehicle.
  • the electric vehicle further comprises a
  • a control device configured to control the electric vehicle according to the determined direction toward the primary coil. If present, the controller may also use a detected distance between the primary coil and the secondary coil to control the electric vehicle.
  • Figure 1 a schematic representation of an assistance system according to an embodiment
  • FIG. 2 shows a schematic representation of an assistance system according to a further embodiment
  • FIG. 3 shows a schematic representation of an assistance system according to yet another embodiment
  • Figure 4 a schematic representation of a method, as it is based on a further embodiment. Description of embodiments
  • FIG. 1 shows a schematic illustration of an assistance system according to an embodiment.
  • a charging station 3 comprises, for example, a primary coil 1.
  • This primary coil 1 can be connected via suitable electronics to an energy source, for example a power grid (not shown here).
  • the primary coil 1 For inductive energy transmission, the primary coil 1 generates a high-frequency alternating magnetic field. Since the transmitted power increases linearly with the switching frequency, but on the other hand, the switching frequency is limited by the control electronics and the losses in the transmission path, typically results in a frequency range of 20-150 kHz.
  • a secondary coil 2 must be positioned as optimally as possible above the primary coil 1 of the charging station 3.
  • the primary coil 2 may be arranged in an electric vehicle 4.
  • the secondary coil 2 can be fixedly mounted in the underbody of the electric vehicle 4.
  • Secondary coil 2 can in turn be connected by means of suitable electronics with an electrical energy storage, such as a traction battery or the like.
  • an electrical energy storage such as a traction battery or the like.
  • the primary coil 1 For inductive energy transmission, the primary coil 1 generates a magnetic alternating field which penetrates the secondary coil 2 and induces a corresponding current there.
  • primary coil 1 and secondary coil 2 For optimum inductive energy transmission, primary coil 1 and secondary coil 2 must be optimally positioned relative to each other in order to achieve the highest possible coupling between the two coils 1 and 2, which equates to minimizing the stray field.
  • the positioning of the secondary coil 2 with respect to the primary coil 1 can be done manually or automatically.
  • the relative position of the secondary coil 2 with respect to the primary coil 1 for example by means of
  • an ultrasound source 10 with an ultrasound transmitter 11 is arranged in the immediate vicinity of the primary coil 1.
  • the ultrasonic transmitter 11 may, for example, in all
  • the ultrasound signal emitted by the ultrasound transmitter 11 may be, for example, a
  • pulsed, modulated or coded ultrasonic signals are possible.
  • a receiving device 20 is arranged with at least two ultrasonic receivers 21. Each of these
  • Ultrasonic receiver 21 receives this from the ultrasonic transmitter 11
  • Primary coil 1, with respect to the receiving device 20 and thus with respect to the secondary coil 2 are determined. From this, a direction can be determined which indicates how the secondary coil 2 has to be moved in order to be optimally positioned above the primary coil 1.
  • the determination of the direction by the processing device 30 can be repeated periodically, for example, to increase the accuracy of the target.
  • the secondary coil 2 is arranged, for example, in an electric vehicle 4 which already has ultrasonic receivers, as are used, for example, in conventional driver assistance systems, then these already existing ultrasonic receivers can be used as ultrasonic receivers 21 of the receiving device 20.
  • Ultrasonic receiver 21 used, so this can the accuracy for the determination of the direction between the receiving device 20 and
  • Ultrasonic source 10 can be increased.
  • the use allows a plurality of ultrasonic receiver 21 and in particular the use of
  • Ultrasonic receivers 21 with a narrower directional characteristic Ultrasonic receivers 21 with a narrower directional characteristic.
  • the processing device 30 can be used to automatically control, for example, the electric vehicle 4 in the direction of the charging station 3 with the primary coil 1.
  • the electric vehicle 4 may include a suitable control device 5, which is designed to control the corresponding components of the electric vehicle 4 in order to drive at a suitable angle in the direction of the charging station 3, thereby optimally positioning the secondary coil 2 over the primary coil 1 ,
  • processing device 30 can also be evaluated by evaluating the received ultrasonic signals in addition to the direction between primary coil 1 and
  • the assistance system may also have a display device 40.
  • the display device 40 may be a screen that is in one
  • Display device 40 of the assistance system can then be displayed to a user the direction in which the electric vehicle 4 must be moved in order to position the secondary coil 2 optimally over the primary coil 1. If known, moreover, the distance between the primary coil 1 and the secondary coil 2 can be displayed on the display device 40.
  • FIG. 2 shows a further embodiment of an assistance system for
  • the ultrasonic source 10 comprises a plurality of ultrasonic transmitters 11.
  • the ultrasonic transmitter 11 are preferably arranged at known, predetermined distances from each other.
  • the ultrasound source 10 preferably comprises at least three ultrasound transmitters 11
  • Processing device 30 determines to each in this case
  • Ultrasonic switch 11 of the ultrasonic source 10 a direction. In this way it is possible to also determine the orientation of the electric vehicle 4 with respect to the charging station 3. Thus, the charging station 3 by the
  • Electric vehicle 4 are also driven from a predetermined direction out.
  • Ultrasonic source 10 are arranged, not exactly known in the receivers. It is already sufficient to depict a basic pattern which has a standardized orientation to the charging station 3.
  • a basic structure may be an equilateral triangle, the tip of which is oriented in the direction of an approach side of the charging station, and its axis of symmetry
  • the different ultrasonic transmitters 11 can all simultaneously emit an ultrasonic signal. Preferably, however, the ultrasonic transmitters 11 can also sequentially emit an ultrasonic signal in succession. Furthermore, the emitted ultrasonic signals of all the ultrasonic transmitters 11 can be identical. Alternatively, it is possible to individually encode the ultrasound signals emitted by the individual ultrasound transmitters 11, so that the
  • received ultrasonic signals can be individually assigned to one of the ultrasonic transmitter 11.
  • the ultrasound source 10 comprises a plurality of ultrasound transmitters 11, in particular more than three
  • Ultrasonic transmitter 11 so a trilateration based on the received from a single ultrasonic receiver 21 ultrasonic signals is possible.
  • the ultrasound signals received by the ultrasound receiver 21 can be assigned to the individual ultrasound transmitters 11.
  • the individual ultrasound transmitters 11 it is also possible for the individual ultrasound transmitters 11 to emit an ultrasound signal at a later time, wherein the pattern in which the individual ultrasound transmitters 11 of the ultrasound source 10 emit their respective signals is known on the receiving side, so that thereby also assigning the received ultrasound signals to one of the Ultrasonic transmitter 11 can take place.
  • ultrasound source 10 and receiving device 20 to synchronize in order to associate the received ultrasound signals with the individual ones
  • Ultrasonic transmitters 11 to perform. For example, this synchronization can be described below
  • FIG. 3 shows a further embodiment of an assistance system for
  • the embodiment according to FIG. 3 differs from the embodiment in FIG. 2 in that the ultrasound source 10 with the ultrasound transmitters 11 is arranged in the immediate vicinity of the secondary coil 2.
  • Driver assistance system for example, a parking aid of a vehicle 4 are used.
  • the receiving device 20 with the ultrasonic receivers 21 is arranged in this embodiment in the immediate vicinity of the primary coil 1.
  • Primary coil 1 and secondary coil 2 are determined.
  • the evaluation of the received ultrasonic signals is in this case preferably by a Processing device 30, which is arranged in the charging station 3.
  • the data thus determined ie in particular the direction and / or distance between the primary coil 1 and the secondary coil 2, can be transmitted via a
  • Primary coil 1 and secondary coil 2 data for billing or the cost of charging or other parameters are transmitted. Is already a conventional communication device between charging station 3 and
  • this communication device can also be used to transmit information about the distance or the direction between the primary coil 1 and secondary coil 2. Even if the communication device 50, 51 here only in connection with the
  • Receiving device 10 and an ultrasonic array are used. Such an ultrasonic array allows direct directional measurement. Thus, the reliability of the determination of direction and / or distance can be further increased.
  • two ultrasonic transmitters 11 on the transmitter side are already sufficient to be able to carry out a trilateration for determining the direction.
  • the ultrasonic transmitter 11 and the ultrasonic receiver 21 can be synchronized with each other via the communication device 50, 51. This way, in addition
  • Processing device 30 analyze the movement of the electric vehicle 40 and integrate with the processing process.
  • the movement of the vehicle 40 may, for example, by an existing in the vehicle 4
  • Navigation system to be determined.
  • other components or devices in the vehicle 40 that detect or estimate the movement of the vehicle 4 over the ground are also possible.
  • FIG. 4 shows a schematic representation of a flowchart on which a method for assisting the positioning of a secondary coil on a primary coil for an inductive energy transmission is based.
  • a first step S1 either an ultrasound source 10 is provided at a primary coil 1 and a receiver 20 at a secondary coil 2.
  • the ultrasound source 10 comprises at least two ultrasound receivers 11
  • Ultrasonic source 10 emitted an ultrasonic signal.
  • the ultrasound source 10 may include one or more ultrasound transmitters 11. Unless the
  • Ultrasonic source 10 comprises a plurality of ultrasonic transmitter 11, the
  • Ultrasonic transmitter 11 either simultaneously or sequentially emit an ultrasonic signal.
  • the emitted ultrasonic signal can be pulsed or modulated or coded in any other way.
  • step S3 the transmitted ultrasonic signal is transmitted through the
  • step S4 Receive ultrasonic receiver 21. Subsequently, in step S4, a direction between receiving device 20 and ultrasound source 10 is determined. Optionally, in addition, a distance between the receiving device 20 and ultrasound source 10 can be determined.
  • the particular direction and possibly also the distance between the receiving device 20 and ultrasound source 10 can on a
  • Display device 40 are displayed. Additionally or alternatively, based on the particular direction and optionally the particular distance between the receiving device 20 and ultrasound source 10, an electric vehicle 4 with a secondary coil 2 can be navigated towards a charging station 3 with the primary coil 1 to optimally position the secondary coil 2 over the primary coil 1 ,
  • the present invention relates to an assistance system for optimum positioning of primary coil and secondary coil of an inductive energy transfer.
  • ultrasonic signals are exchanged between the primary coil and the secondary coil.
  • the ultrasonic signals are received by a plurality of ultrasonic receivers and evaluated based on the transit time differences of the received ultrasonic signals, a relative position between the primary coil and the secondary coil.
  • the relative position can be displayed to a user, or used for automatic positioning of the secondary coil.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)

Abstract

The invention relates to an assistance system for optimally positioning a primary coil and a secondary coil of an inductive energy transmission. For this purpose, ultrasonic signals are exchanged between the primary coil and the secondary coil. The ultrasonic signals are received by a plurality of ultrasonic receivers and a relative position between the primary coil and the secondary coil is evaluated on the basis of the propagation time differences of the received ultrasonic signals. The relative position can be displayed to a user or can be used for automatic positioning of the secondary coil.

Description

Beschreibung  description
Titel title
System und Verfahren zur Assistenz für die Positionierung einer Sekundärspule an einer Primärspule für eine induktive Energieübertragung  System and method for assisting the positioning of a secondary coil on a primary coil for inductive power transmission
Die vorliegende Erfindung betrifft ein System sowie ein Verfahren zur Assistenz für die Positionierung einer Sekundärspule an einer Primärspule für induktive Energieübertragung. Das induktive Laden eines elektrischen Energiespeichers stellt eine innovativeThe present invention relates to a system and a method for assisting the positioning of a secondary coil on a primary coil for inductive energy transmission. The inductive charging of an electrical energy storage represents an innovative
Alternative zu dem konduktiven Laden dar, bei dem der Energiespeicher über eine galvanische Verbindung mit einer Energiequelle verbunden werden muss. Beim induktiven Laden wird eine Primärspule mittels einer geeigneten Elektronik mit einem Stromnetz verbunden. Ferner wird eine Sekundärspule in die unmittelbare Nähe der Primärspule gebracht und über eine geeignete Elektronik mit dem aufzuladenden Energiespeicher verbunden. Zur Energieübertragung erzeugt die Primärspule ein hochfrequentes magnetisches Wechselfeld, das die Sekundärspule durchdringt und dort einen entsprechenden Strom induziert. Die Europäische Patentanmeldung EP 2 454 119 A2 offenbart eine elektronischeAlternative to the conductive charging, in which the energy storage must be connected via a galvanic connection to a power source. When inductive charging a primary coil is connected by means of suitable electronics to a power grid. Furthermore, a secondary coil is brought into the immediate vicinity of the primary coil and connected via a suitable electronics with the energy storage to be charged. For energy transfer, the primary coil generates a high-frequency alternating magnetic field, which penetrates the secondary coil and induces a corresponding current there. European Patent Application EP 2 454 119 A2 discloses an electronic
Positionshilfe für ein Elektrofahrzeug im Nahbereich von induktiven Positioning aid for an electric vehicle in the vicinity of inductive
Ladestationen. Dabei kann das Elektrofahrzeug unter Verwendung von Sensoren einer Einparkhilfe des Fahrzeugs in einem rechnergestützten Rangierbetrieb über eine Spule einer induktiven Ladestation positioniert werden. Charging stations. In this case, the electric vehicle can be positioned using sensors of a parking aid of the vehicle in a computer-aided maneuvering operation via a coil of an inductive charging station.
Für einen möglichst hohen Wirkungsgrad bei der induktiven Energieübertragung und um die bei der Energieübertragung entstehenden Verluste zu reduzieren, müssen Primär- und Sekundärspulen optimal zueinander positioniert werden. Es besteht daher ein Bedarf nach einem System und einem Verfahren zur Assistenz bei der Positionierung der Spulen für eine induktive To maximize the efficiency of inductive energy transfer and to reduce the losses associated with energy transfer, primary and secondary coils must be optimally positioned relative to each other. There is therefore a need for a system and method for assisting in positioning the coils for inductive
Energieübertragung. Energy transfer.
Offenbarung der Erfindung Disclosure of the invention
Gemäß einem ersten Aspekt schafft die vorliegende Erfindung ein According to a first aspect, the present invention provides a
Assistenzsystem zur Positionierung einer Sekundärspule an einer Primärspule für eine induktive Energieübertragung, mit einer Ultraschallquelle, die dazu ausgelegt ist, ein Ultraschallsignal auszusenden; einer Empfangsvorrichtung mit mindestens einem Ultraschallempfänger, der dazu ausgelegt ist, die von der Ultraschallquelle ausgesendeten Ultraschallsignale zu empfangen; und einer Verarbeitungsvorrichtung, die dazu ausgelegt ist, die von dem oder den An assistance system for positioning a secondary coil on a primary coil for inductive power transmission, comprising an ultrasonic source configured to emit an ultrasonic signal; a receiving device having at least one ultrasonic receiver adapted to receive the ultrasonic signals emitted by the ultrasonic source; and a processing device configured to receive the one or more
Ultraschallempfängern empfangenen Ultraschallsignale auszuwerten und eine Richtung zwischen der Empfangsvorrichtung und der Ultraschallquelle zu bestimmen, wobei entweder die Ultraschallquelle an der Primärspule angeordnet ist und die Empfangsvorrichtung an der Sekundärspule angeordnet ist, oder die Empfangsvorrichtung an der Primärspule angeordnet ist und die Ultraschallquelle an der Sekundärspule angeordnet ist. Evaluate ultrasonic receivers received ultrasonic signals and to determine a direction between the receiving device and the ultrasonic source, either the ultrasonic source is disposed on the primary coil and the receiving device is disposed on the secondary coil, or the receiving device is disposed on the primary coil and the ultrasonic source is disposed on the secondary coil ,
Gemäß einem weiteren Aspekt schafft die vorliegende Erfindung ein Verfahren zur Assistenz zur Positionierung einer Sekundärspule an einer Primärspule für eine induktive Energieübertragung. Das Verfahren umfasst die Schritte des Bereitstellens einer Ultraschallquelle an der Primärspule und einer In another aspect, the present invention provides a method of assisting positioning a secondary coil on a primary coil for inductive power transmission. The method comprises the steps of providing an ultrasound source to the primary coil and a
Empfangsvorrichtung an der Sekundärspule, oder des Bereitstellens einer Empfangsvorrichtung an der Primärspule und einer Ultraschallquelle an der Sekundärspule, wobei die Empfangsvorrichtung mindestens einen Receiving device on the secondary coil, or providing a receiving device to the primary coil and an ultrasonic source to the secondary coil, wherein the receiving device at least one
Ultraschallempfänger umfasst; des Aussendens eines Ultraschallsignals durch die Ultraschallquelle; des Empfangens des ausgesendeten Ultraschallsignals durch den oder die Ultraschallempfänger; und des Bestimmens einer Richtung zwischen der Empfangsvorrichtung und der Ultraschallquelle basierend auf den von dem oder den Ultraschallempfängern empfangenen Ultraschallsignalen. Ultrasonic receiver comprises; the emission of an ultrasonic signal by the ultrasonic source; receiving the emitted ultrasound signal by the one or more ultrasound receivers; and determining a direction between the receiving device and the ultrasound source based on the ultrasound signals received by the one or more ultrasound receivers.
Vorteile der Erfindung Eine Idee, die der vorliegenden Erfindung zugrunde liegt, besteht darin, einen räumlichen Versatz zwischen Primärspule und Sekundärspule eines induktiven Energieübertragungssystems zu bestimmen, indem Ultraschallsignale zwischen der Position der Primärspule und der Position der Sekundärspule übertragen werden. Durch die Auswertung der Laufzeiten der Ultraschallsignale zwischenAdvantages of the invention One idea underlying the present invention is to determine a spatial offset between the primary coil and the secondary coil of an inductive power transmission system by transmitting ultrasonic signals between the position of the primary coil and the position of the secondary coil. By evaluating the transit times of the ultrasonic signals between
Primärspule und Sekundärspule kann ein räumlicher Versatz zwischen den beiden Spulen bestimmt werden. Auf diese Weise ist es möglich, die Richtung zu ermitteln, in der eine der beiden Spulen, vorzugsweise die Sekundärspule, bewegt werden muss, um das Spulenpaar aus Primärspule und Sekundärspule optimal zueinander zu positionieren. Primary coil and secondary coil, a spatial offset between the two coils can be determined. In this way it is possible to determine the direction in which one of the two coils, preferably the secondary coil, has to be moved in order to optimally position the coil pair of primary coil and secondary coil with respect to one another.
Durch die Verwendung von Ultraschallsignalen für die Assistenz bei der By using ultrasound signals for assistance with the
Positionierung der Spulen wird ein robustes, kostengünstiges und sehr zuverlässiges Assistenzsystem für die Positionierung der Spulen ermöglicht. Dabei ist die Richtungsbestimmung weitestgehend unabhängig von externen Einflüssen, wie zum Beispiel Helligkeit, Nebel und ähnlichem. Positioning the coils provides a robust, cost-effective and highly reliable coil positioning assistance system. The direction determination is largely independent of external influences, such as brightness, fog and the like.
Im Falle von Elektrofahrzeugen können zum Aussenden oder zum Empfangen der Ultraschallsignale bereits vorhandene Aktoren bzw. Sensoren verwendet werden, die aufgrund von weiteren Fahrassistenzsystemen vorhanden sind. Beispielsweise können zum Aussenden oder Empfangen der Ultraschallsignale die entsprechenden Komponenten eines Parkassistenzsystems verwendet werden. Hierdurch kann das erfindungsgemäße Assistenzsystem besonders kostengünstig implementiert werden. In the case of electric vehicles already existing actuators or sensors can be used to send or receive the ultrasonic signals, which are available due to other driver assistance systems. For example, the corresponding components of a parking assistance system can be used for emitting or receiving the ultrasound signals. As a result, the assistance system according to the invention can be implemented in a particularly cost-effective manner.
Gemäß einer Ausführungsform ist die Verarbeitungsvorrichtung ferner dazu ausgelegt, einen Abstand zwischen der Empfangsvorrichtung und der According to an embodiment, the processing device is further configured to adjust a distance between the receiving device and the
Ultraschallquelle zu bestimmen. Dieser Abstand entspricht somit auch dem Abstand zwischen Primärspule und Sekundärspule. Wird neben der Richtung auch zusätzlich der Abstand zwischen Primärspule und Sekundärspule ermittelt, so stehen diese Informationen für eine optimale Positionierung von To determine the ultrasound source. This distance thus also corresponds to the distance between the primary coil and the secondary coil. If, in addition to the direction, the distance between primary coil and secondary coil is also determined, this information stands for optimal positioning of
Sekundärspule in Bezug auf die Primärspule ebenfalls zur Verfügung. Diese Informationen können für eine automatische oder auch manuelle Positionierung der Spule verwendet werden. Gemäß einer weiteren Ausführungsform umfasst die Ultraschallquelle eine Mehrzahl von Ultraschallsendern, die in vorbestimmten räumlichen Abständen zueinander angeordnet sind. Durch den Einsatz mehrerer definiert angeordneter Ultraschallsender wird die Bestimmung der Relativposition zwischen Primärspule und Sekundärspule weiter verbessert. Hierdurch dann die Sekundärspule von eine vorgegebenen Vorzugsrichtung heraus an die Primärspule angenähert werden. Secondary coil with respect to the primary coil also available. This information can be used for automatic or manual positioning of the coil. According to a further embodiment, the ultrasound source comprises a plurality of ultrasound transmitters which are arranged at predetermined spatial distances from one another. The use of a plurality of ultrasound transmitters arranged in a defined manner further improves the determination of the relative position between primary coil and secondary coil. In this way, the secondary coil can then be approached from a predetermined preferred direction to the primary coil.
Gemäß einer Ausführungsform senden die Ultraschallsender jeweils ein individuell kodiertes Ultraschallsignal aus. Durch diese individuelle Kodierung der Ultraschallsignale der einzelnen Ultraschallsender kann die Empfangsvorrichtung auf einfache Weise ermitteln, von welchem Ultraschallsender das jeweilige Ultraschallsignal ausgesendet wurde. Somit kann die Bestimmung der According to one embodiment, the ultrasound transmitters each emit an individually coded ultrasound signal. As a result of this individual coding of the ultrasound signals of the individual ultrasound transmitters, the receiving device can easily determine from which ultrasound transmitter the respective ultrasound signal was transmitted. Thus, the determination of the
Relativposition zwischen Primärspule und Sekundärspule weiter verbessert werden. Relative position between primary coil and secondary coil can be further improved.
Gemäß einer weiteren Ausführungsform senden die Ultraschallsender sequentiell nacheinander jeweils ein Ultraschallsignal aus. Durch das sequentielle According to a further embodiment, the ultrasound transmitters sequentially transmit one ultrasound signal in succession. By the sequential
Aussenden der Ultraschallsignale ist eine eindeutige Zuordnung der Transmission of the ultrasonic signals is an unambiguous assignment of
empfangenen Ultraschallsignale zu dem jeweils aussendenden Ultraschallsender möglich. received ultrasonic signals to the respective emitting ultrasonic transmitter possible.
Gemäß einer weiteren Ausführungsform umfasst das Assistenzsystem ferner eine Anzeigevorrichtung, die dazu ausgelegt ist, die von der According to a further embodiment, the assistance system further comprises a display device, which is adapted to that of the
Verarbeitungsvorrichtung bestimmte Richtung anzuzeigen. Gegebenenfalls kann ein zusätzlich ermittelter Abstand zwischen Ultraschallquelle und Processing device to indicate certain direction. Optionally, an additionally determined distance between the ultrasonic source and
Empfangsvorrichtung ebenfalls angezeigt werden. Auf diese Weise ist es einem Benutzer sehr einfach möglich, die Sekundärspule optimal über der Primärspule zu positionieren. Receiving device also be displayed. In this way it is very easy for a user to optimally position the secondary coil over the primary coil.
Gemäß einer weiteren Ausführungsform umfasst das Assistenzsystem ferner eine Kommunikationsvorrichtung, die dazu ausgelegt ist, Daten über die von der Verarbeitungsvorrichtung bestimmte Richtung auszusenden und/oder zu empfangen. Vorzugsweise erfolgt die Kommunikation kabellos. Bei der According to a further embodiment, the assistance system further comprises a communication device which is designed to transmit and / or receive data via the direction determined by the processing device. Preferably, the communication is wireless. In the
Kommunikationsvorrichtung kann es sich insbesondere um eine bereits vorhandene Kommunikationsvorrichtung handeln, die zum Datenaustausch zwischen Primärseite und Sekundärseite eines induktiven Ladesystems vorhanden ist. Auf diese Weise ist beispielsweise eine Synchronisation zwischen Ultraschallquelle und Empfangsvorrichtung möglich. In particular, the communication device may already be one existing communication device, which is present for data exchange between the primary side and secondary side of an inductive charging system. In this way, for example, a synchronization between the ultrasound source and receiving device is possible.
Gemäß einer weiteren Ausführungsform ist die Sekundärspule in einem According to a further embodiment, the secondary coil is in one
Elektrofahrzeug angeordnet. Ferner kann die Primärspule in einer Ladestation für das Elektrofahrzeug angeordnet sein. Electric vehicle arranged. Furthermore, the primary coil can be arranged in a charging station for the electric vehicle.
Gemäß einer Ausführungsform umfasst das Elektrofahrzeug ferner eine According to one embodiment, the electric vehicle further comprises a
Steuervorrichtung, die dazu ausgelegt ist, das Elektrofahrzeug entsprechend der bestimmten Richtung in Richtung der Primärspule zu steuern. Sofern vorhanden, kann die Steuervorrichtung ferner auch eine ermittelte Entfernung zwischen Primärspule und Sekundärspule verwenden, um das Elektrofahrzeug zu steuern. A control device configured to control the electric vehicle according to the determined direction toward the primary coil. If present, the controller may also use a detected distance between the primary coil and the secondary coil to control the electric vehicle.
Weitere Ausführungsformen und Vorteile der vorliegenden Erfindung ergeben sich aus der nachfolgenden Beschreibung unter Bezug auf die beigefügten Zeichnungen. Further embodiments and advantages of the present invention will become apparent from the following description with reference to the accompanying drawings.
Kurze Beschreibung der Zeichnungen Dabei zeigen: Brief Description of the Drawings In which:
Figur 1: eine schematische Darstellung eines Assistenzsystems gemäß einer Ausführungsform; Figure 1: a schematic representation of an assistance system according to an embodiment;
Figur 2: eine schematische Darstellung eines Assistenzsystems gemäß einer weiteren Ausführungsform; FIG. 2 shows a schematic representation of an assistance system according to a further embodiment;
Figur 3: eine schematische Darstellung eines Assistenzsystems gemäß noch einer weiteren Ausführungsform; und FIG. 3 shows a schematic representation of an assistance system according to yet another embodiment; and
Figur 4: eine schematische Darstellung eines Verfahrens, wie es einer weiteren Ausführungsform zugrunde liegt. Beschreibung von Ausführungsformen Figure 4: a schematic representation of a method, as it is based on a further embodiment. Description of embodiments
Figur 1 zeigt eine schematische Darstellung eines Assistenzsystems gemäß einer Ausführungsform. Eine Ladestation 3 umfasst hierzu beispielsweise eine Primärspule 1. Diese Primärspule 1 kann über eine geeignete Elektronik mit einer Energiequelle, beispielsweise einem Stromnetz verbunden sein (hier nicht dargestellt). Für die induktive Energieübertragung erzeugt die Primärspule 1 ein hochfrequentes magnetisches Wechselfeld. Da die übertragene Leistung linear mit der Schaltfrequenz steigt, aber andererseits die Schaltfrequenz durch die Ansteuerelektronik und die Verluste im Übertragungspfad begrenzt ist, ergibt sich typischerweise ein Frequenzbereich von 20-150 kHz. Zur Energieübertragung muss ferner eine Sekundärspule 2 möglichst optimal über der Primärspule 1 der Ladestation 3 positioniert werden. Beispielsweise kann die Primärspule 2 in einem Elektrofahrzeug 4 angeordnet sein. Die Sekundärspule 2 kann zum Beispiel fest im Unterboden des Elektrofahrzeugs 4 montiert werden. DieFIG. 1 shows a schematic illustration of an assistance system according to an embodiment. For this purpose, a charging station 3 comprises, for example, a primary coil 1. This primary coil 1 can be connected via suitable electronics to an energy source, for example a power grid (not shown here). For inductive energy transmission, the primary coil 1 generates a high-frequency alternating magnetic field. Since the transmitted power increases linearly with the switching frequency, but on the other hand, the switching frequency is limited by the control electronics and the losses in the transmission path, typically results in a frequency range of 20-150 kHz. For energy transmission, furthermore, a secondary coil 2 must be positioned as optimally as possible above the primary coil 1 of the charging station 3. For example, the primary coil 2 may be arranged in an electric vehicle 4. For example, the secondary coil 2 can be fixedly mounted in the underbody of the electric vehicle 4. The
Sekundärspule 2 kann ihrerseits mittels geeigneter Elektronik mit einem elektrischen Energiespeicher, wie zum Beispiel einer Traktionsbatterie oder ähnlichem verbunden sein. Zur induktiven Energieübertragung erzeugt die Primärspule 1 ein magnetisches Wechselfeld, das die Sekundärspule 2 durchdringt und dort einen entsprechenden Strom induziert. Für eine optimale induktive Energieübertragung müssen hierzu Primärspule 1 und Sekundärspule 2 optimal zueinander positioniert werden, um eine möglichst hohe Kopplung zwischen den beiden Spulen 1 und 2 zu erreichen, was einer Minimierung des Streufelds gleichkommt. Secondary coil 2 can in turn be connected by means of suitable electronics with an electrical energy storage, such as a traction battery or the like. For inductive energy transmission, the primary coil 1 generates a magnetic alternating field which penetrates the secondary coil 2 and induces a corresponding current there. For optimum inductive energy transmission, primary coil 1 and secondary coil 2 must be optimally positioned relative to each other in order to achieve the highest possible coupling between the two coils 1 and 2, which equates to minimizing the stray field.
Die Positionierung der Sekundärspule 2 in Bezug auf die Primärspule 1 kann dabei manuell oder automatisch erfolgen. Dabei kann die relative Position der Sekundärspule 2 in Bezug auf die Primärspule 1 beispielsweise mittels The positioning of the secondary coil 2 with respect to the primary coil 1 can be done manually or automatically. In this case, the relative position of the secondary coil 2 with respect to the primary coil 1, for example by means of
Ultraschallsignalen bestimmt werden. Ultrasonic signals are determined.
In der in Figur 1 dargestellten Ausführungsform ist in unmittelbarer Nähe der Primärspule 1 eine Ultraschallquelle 10 mit einem Ultraschallsender 11 angeordnet. Der Ultraschallsender 11 kann beispielsweise in alle In the embodiment shown in FIG. 1, an ultrasound source 10 with an ultrasound transmitter 11 is arranged in the immediate vicinity of the primary coil 1. The ultrasonic transmitter 11 may, for example, in all
Raumrichtungen gleichförmig ein Ultraschallsignal aussenden. Ist außerdem bekannt, dass sich die Sekundärspule 2 nur aus bestimmten Raumrichtungen an die Ladestation 3 mit der Primärspule 1 annähern kann, so kann die Spaces uniformly emit an ultrasonic signal. Is also known that the secondary coil 2 only from certain spatial directions can approach the charging station 3 with the primary coil 1, the
Abstrahlcharakteristik des Ultraschallsenders 11 auch auf diese Raumrichtungen hin eingegrenzt oder optimiert werden. Bei dem durch den Ultraschallsender 11 ausgesendeten Ultraschallsignal kann es sich beispielsweise um ein Abstrahlcharakteristik the ultrasonic transmitter 11 also be limited or optimized in these spatial directions. The ultrasound signal emitted by the ultrasound transmitter 11 may be, for example, a
gleichförmiges Ultraschallsignal mit einer vorbestimmten Frequenz handeln.uniform ultrasonic signal with a predetermined frequency act.
Darüber hinaus sind auch gepulste, modulierte oder kodierte Ultraschallsignale möglich. Auch das Aussenden von periodischen Ultraschallsignalen mit einer vorbestimmten Signallänge und/oder Pause zwischen den einzelnen In addition, pulsed, modulated or coded ultrasonic signals are possible. Also, the emission of periodic ultrasound signals with a predetermined signal length and / or pause between the individual
Ultraschallsignalen ist möglich. Ultrasonic signals is possible.
In räumlicher Nähe der Sekundärspule 2 ist eine Empfangsvorrichtung 20 mit mindestens zwei Ultraschallempfängern 21 angeordnet. Jeder dieser In spatial proximity of the secondary coil 2, a receiving device 20 is arranged with at least two ultrasonic receivers 21. Each of these
Ultraschallempfänger 21 empfängt das von dem Ultraschallsender 11 Ultrasonic receiver 21 receives this from the ultrasonic transmitter 11
ausgesendete Ultraschallsignal und leitet es an eine Verarbeitungsvorrichtung 30 weiter. Durch die Wegeunterschiede zwischen der Ultraschallsender 11 und denemitted ultrasonic signal and passes it to a processing device 30 on. Due to the path differences between the ultrasonic transmitter 11 and the
Ultraschallempfängern 21 kommt es zu Laufzeitunterschieden in den Ultrasound receivers 21 it comes to runtime differences in the
empfangenen Ultraschallsignalen. Aus diesen Laufzeitunterschieden kann mittels der Trilateration der relative Ort der Ultraschallquelle 10, und somit der received ultrasound signals. From these transit time differences, the relative location of the ultrasound source 10, and thus the
Primärspule 1, in Bezug auf die Empfangsvorrichtung 20 und somit in Bezug auf die Sekundärspule 2 ermittelt werden. Hieraus kann eine Richtung bestimmt werden, die angibt wie die Sekundärspule 2 bewegt werden muss, um optimal über der Primärspule 1 positioniert zu werden. Die Ermittlung der Richtung durch die Verarbeitungsvorrichtung 30 kann dabei beispielsweise periodisch wiederholt werden, um die Zielgenauigkeit zu erhöhen. Primary coil 1, with respect to the receiving device 20 and thus with respect to the secondary coil 2 are determined. From this, a direction can be determined which indicates how the secondary coil 2 has to be moved in order to be optimally positioned above the primary coil 1. The determination of the direction by the processing device 30 can be repeated periodically, for example, to increase the accuracy of the target.
Ist die Sekundärspule 2 zum Beispiel in einem Elektrofahrzeug 4 angeordnet, das bereits über Ultraschallempfänger verfügt, wie sie beispielsweise in konventionellen Fahrassistenzsystemen eingesetzt werden, so können diese bereits vorhandenen Ultraschallempfänger als Ultraschallempfänger 21 der Empfangsvorrichtung 20 eingesetzt werden. If the secondary coil 2 is arranged, for example, in an electric vehicle 4 which already has ultrasonic receivers, as are used, for example, in conventional driver assistance systems, then these already existing ultrasonic receivers can be used as ultrasonic receivers 21 of the receiving device 20.
Werden in der Empfangsvorrichtung 20 darüber hinaus mehr als zwei Become more than two in the receiving device 20 beyond
Ultraschallempfänger 21 verwendet, so kann hierdurch die Genauigkeit für die Bestimmung der Richtung zwischen Empfangsvorrichtung 20 und Ultrasonic receiver 21 used, so this can the accuracy for the determination of the direction between the receiving device 20 and
Ultraschallquelle 10 erhöht werden. Darüber hinaus erlaubt die Verwendung mehrerer Ultraschallempfänger 21 auch insbesondere den Einsatz von Ultrasonic source 10 can be increased. In addition, the use allows a plurality of ultrasonic receiver 21 and in particular the use of
Ultraschallempfängern 21 mit einer schmaleren Richtcharakteristik. Ultrasonic receivers 21 with a narrower directional characteristic.
In der in Figur 1 dargestellten Ausführungsform mit nur einer Ultraschallquelle 10 ist es dabei nur möglich, die Primärspule 1 in der Ladestation 3 direkt anzusteuern. Da die Ultraschallquelle 10 das ausgesendete Ultraschallsignal radial symmetrisch in alle Richtungen ausstrahlt, ist darüber hinaus keine Information über eine mögliche Vorzugsrichtung möglich. Die durch die Verarbeitungsvorrichtung 30 bestimmte Richtung kann dazu verwendet werden, um beispielsweise das Elektrof ahrzeug 4 automatisch in Richtung der Ladestation 3 mit der Primärspule 1 zu steuern. Hierzu kann das Elektrofahrzeug 4 eine geeignete Steuervorrichtung 5 umfassen, die dazu ausgelegt ist, die entsprechenden Komponenten des Elektrof ah rzeugs 4 anzusteuern, um in einem geeigneten Winkel in Richtung der Ladestation 3 zu fahren und dabei die Sekundärspule 2 optimal über der Primärspule 1 zu positionieren. In the embodiment shown in Figure 1 with only one ultrasonic source 10, it is only possible to directly control the primary coil 1 in the charging station 3. Since the ultrasound source 10 emits the transmitted ultrasound signal radially symmetrically in all directions, moreover, no information about a possible preferred direction is possible. The direction determined by the processing device 30 can be used to automatically control, for example, the electric vehicle 4 in the direction of the charging station 3 with the primary coil 1. For this purpose, the electric vehicle 4 may include a suitable control device 5, which is designed to control the corresponding components of the electric vehicle 4 in order to drive at a suitable angle in the direction of the charging station 3, thereby optimally positioning the secondary coil 2 over the primary coil 1 ,
Die Verarbeitungsvorrichtung 30 kann ferner auch durch Auswertung der empfangenen Ultraschallsignale neben der Richtung zwischen Primärspule 1 undFurthermore, the processing device 30 can also be evaluated by evaluating the received ultrasonic signals in addition to the direction between primary coil 1 and
Sekundärspule 2 auch den Abstand zwischen der Ultraschallquelle 10 und der Empfangsvorrichtung 20, also dem Abstand zwischen Primärspule 1 und Sekundärspule 2 ermitteln. Zusätzlich oder alternativ zu einer automatischen Ansteuerung eines Secondary coil 2 and the distance between the ultrasonic source 10 and the receiving device 20, so determine the distance between the primary coil 1 and secondary coil 2. Additionally or alternatively to an automatic control of a
Elektrofahrzeugs 4 in Richtung der Ladestation 3 kann das Assistenzsystem auch über eine Anzeigevorrichtung 40 verfügen. Beispielsweise kann es sich bei der Anzeigevorrichtung 40 um einen Bildschirm handeln, der in einem  Electric vehicle 4 in the direction of the charging station 3, the assistance system may also have a display device 40. For example, the display device 40 may be a screen that is in one
Navigationssystem des Elektrofahrzeugs 4 bereits vorhanden ist. Weitere Anzeigevorrichtungen sind darüber hinaus jedoch ebenso möglich. Auf derNavigation system of the electric vehicle 4 already exists. However, further display devices are also possible. On the
Anzeigevorrichtung 40 des Assistenzsystems kann einem Benutzer daraufhin die Richtung angezeigt werden, in der das Elektrofahrzeug 4 bewegt werden muss, um die Sekundärspule 2 optimal über der Primärspule 1 zu positionieren. Falls bekannt, kann darüber hinaus auch die Entfernung zwischen Primärspule 1 und Sekundärspule 2 auf der Anzeigevorrichtung 40 angezeigt werden. Figur 2 zeigt eine weitere Ausführungsform eines Assistenzsystems zur Display device 40 of the assistance system can then be displayed to a user the direction in which the electric vehicle 4 must be moved in order to position the secondary coil 2 optimally over the primary coil 1. If known, moreover, the distance between the primary coil 1 and the secondary coil 2 can be displayed on the display device 40. FIG. 2 shows a further embodiment of an assistance system for
Positionierung einer Sekundärspule 2 an einer Primärspule 1 für eine induktive Energieübertragung. Das Assistenzsystem dieser Ausführungsform entspricht dabei weitestgehend der Ausführungsform gemäß Figur 1, wobei in dieserPositioning of a secondary coil 2 on a primary coil 1 for an inductive energy transmission. The assistance system of this embodiment corresponds largely to the embodiment of Figure 1, wherein in this
Ausführungsform die Ultraschallquelle 10 eine Mehrzahl von Ultraschallsendern 11 umfasst. Die Ultraschallsender 11 sind dabei vorzugsweise in bekannten, vorbestimmten Abständen zueinander angeordnet. Vorzugsweise umfasst die Ultraschallquelle 10 dabei mindestens drei Ultraschallsender 11. Die Embodiment, the ultrasonic source 10 comprises a plurality of ultrasonic transmitters 11. The ultrasonic transmitter 11 are preferably arranged at known, predetermined distances from each other. In this case, the ultrasound source 10 preferably comprises at least three ultrasound transmitters 11
Verarbeitungsvorrichtung 30 bestimmt in diesem Fall zu jedem Processing device 30 determines to each in this case
Ultraschallschalter 11 der Ultraschallquelle 10 eine Richtung. Auf diese Weise ist es möglich, auch die Ausrichtung des Elektrofahrzeugs 4 in Bezug auf die Ladestation 3 zu bestimmen. Somit kann die Ladestation 3 durch das  Ultrasonic switch 11 of the ultrasonic source 10 a direction. In this way it is possible to also determine the orientation of the electric vehicle 4 with respect to the charging station 3. Thus, the charging station 3 by the
Elektrofahrzeug 4 auch aus einer vorbestimmten Richtung heraus angesteuert werden. Hierzu muss die Struktur, mit der die Ultraschallsender 11 der Electric vehicle 4 are also driven from a predetermined direction out. For this purpose, the structure with which the ultrasonic transmitter 11 of the
Ultraschallquelle 10 angeordnet sind, bei den Empfängern nicht exakt bekannt sein. Es genügt bereits, ein Grundmuster abzubilden, das eine standardisierte Ausrichtung zur Ladestation 3 aufweist. Beispielsweise kann eine solche Grundstruktur ein gleichseitiges Dreieck sein, dessen Spitze in Richtung einer Anfahrtsseite der Ladestation ausgerichtet ist, und dessen Symmetrieachse des Ultrasonic source 10 are arranged, not exactly known in the receivers. It is already sufficient to depict a basic pattern which has a standardized orientation to the charging station 3. For example, such a basic structure may be an equilateral triangle, the tip of which is oriented in the direction of an approach side of the charging station, and its axis of symmetry
Dreiecks durch die Mitte der Primärspule 1 entlang der Fahrtrichtung zeigt. Triangle through the center of the primary coil 1 along the direction of travel shows.
Die unterschiedlichen Ultraschallsender 11 können dabei alle gleichzeitig ein Ultraschallsignal aussenden. Vorzugsweise können jedoch die Ultraschallsender 11 auch sequentiell nacheinander ein Ultraschallsignal aussenden. Ferner können die ausgesendeten Ultraschallsignale aller Ultraschallsender 11 identisch sein. Alternativ ist es möglich, die von den einzelnen Ultraschallsendern 11 ausgesendeten Ultraschallsignale individuell zu kodieren, so dass die The different ultrasonic transmitters 11 can all simultaneously emit an ultrasonic signal. Preferably, however, the ultrasonic transmitters 11 can also sequentially emit an ultrasonic signal in succession. Furthermore, the emitted ultrasonic signals of all the ultrasonic transmitters 11 can be identical. Alternatively, it is possible to individually encode the ultrasound signals emitted by the individual ultrasound transmitters 11, so that the
empfangenen Ultraschallsignale individuell einem der Ultraschallsender 11 zugeordnet werden können. received ultrasonic signals can be individually assigned to one of the ultrasonic transmitter 11.
Umfasst die Ultraschallquelle 10, wie zum Beispiel in Figur 2 dargestellt, eine Mehrzahl von Ultraschallsendern 11, insbesondere mehr als drei As shown, for example, in FIG. 2, the ultrasound source 10 comprises a plurality of ultrasound transmitters 11, in particular more than three
Ultraschallsender 11, so ist auch eine Trilateration auf Basis der von einem einzigen Ultraschallempfänger 21 empfangenen Ultraschallsignale möglich. Hierzu können basierend auf einer vorbestimmten, individuellen Kodierung der durch die einzelnen Ultraschallsender 11 ausgesendeten Ultraschallsignale die von dem Ultraschallempfänger 21 empfangenen Ultraschallsignale den einzelnen Ultraschallsendern 11 zugeordnet werden. Alternativ ist es auch möglich, dass die einzelnen Ultraschallsender 11 jeweils zeitversetzt ein Ultraschallsignal aussenden, wobei das Muster, in dem die einzelnen Ultraschallsender 11 der Ultraschallquelle 10 jeweils ihre Signale aussenden empfangsseitig bekannt ist, so dass auch hierdurch eine Zuordnung der empfangenen Ultraschallsignale zu einem der Ultraschallsender 11 erfolgen kann. Ferner ist es auch möglich, dass sich Ultraschallquelle 10 und Empfangsvorrichtung 20 synchronisieren, um eine Zuordnung der empfangenen Ultraschallsignale zu den einzelnen Ultrasonic transmitter 11, so a trilateration based on the received from a single ultrasonic receiver 21 ultrasonic signals is possible. For this purpose, based on a predetermined, individual coding of the ultrasound signals emitted by the individual ultrasound transmitters 11, the ultrasound signals received by the ultrasound receiver 21 can be assigned to the individual ultrasound transmitters 11. Alternatively, it is also possible for the individual ultrasound transmitters 11 to emit an ultrasound signal at a later time, wherein the pattern in which the individual ultrasound transmitters 11 of the ultrasound source 10 emit their respective signals is known on the receiving side, so that thereby also assigning the received ultrasound signals to one of the Ultrasonic transmitter 11 can take place. Furthermore, it is also possible for ultrasound source 10 and receiving device 20 to synchronize in order to associate the received ultrasound signals with the individual ones
Ultraschallsendern 11 durchführen zu können. Beispielsweise kann diese Synchronisation durch eine weiter unten beschriebene Ultrasonic transmitters 11 to perform. For example, this synchronization can be described below
Kommunikationsvorrichtung erfolgen. Ist darüber hinaus empfangsseitig die relative Position der einzelnen Ultraschallsender 11 bekannt, so kann auch mit nur einem einzigen Ultraschallempfänger 21 ein Trilateration erfolgen und hieraus die Richtung bestimmt werden, in der die Sekundärspule 2 bewegt werden muss, um optimal über der Primärspule 1 positioniert zu werden. Figur 3 zeigt eine weitere Ausführungsform eines Assistenzsystems zur Communication device done. Moreover, if the relative position of the individual ultrasound transmitters 11 is known at the receiving end, trilateration can also be performed with only a single ultrasound receiver 21 and the direction in which the secondary coil 2 must be moved in order to be optimally positioned above the primary coil 1 be determined , FIG. 3 shows a further embodiment of an assistance system for
Positionierung einer Sekundärspule 2 an einer Primärspule 1 für eine induktive Energieübertragung. Die Ausführungsform nach Figur 3 unterscheidet sich von der Ausführungsform in Figur 2 darin, dass die Ultraschallquelle 10 mit den Ultraschallsendern 11 in unmittelbarer Nähe der Sekundärspule 2 angeordnet ist. Beispielsweise können hierzu bereits vorhandene Ultraschallsendern eines Positioning of a secondary coil 2 on a primary coil 1 for an inductive energy transmission. The embodiment according to FIG. 3 differs from the embodiment in FIG. 2 in that the ultrasound source 10 with the ultrasound transmitters 11 is arranged in the immediate vicinity of the secondary coil 2. For example, for this purpose, existing ultrasound transmitters of a
Fahrassistenzsystems, beispielsweise einer Einparkhilfe eines Fahrzeugs 4 verwendet werden. Driver assistance system, for example, a parking aid of a vehicle 4 are used.
Die Empfangsvorrichtung 20 mit den Ultraschallempfängern 21 ist in dieser Ausführungsform in unmittelbarer Nähe der Primärspule 1 angeordnet. Somit können, analog zu den voraufgegangenen Ausführungsbeispielen, ebenfalls durch Trilaterationen die Richtung und gegebenenfalls Entfernung zwischen Ultraschallquelle 10 und Empfangsvorrichtung 20 und somit zwischen The receiving device 20 with the ultrasonic receivers 21 is arranged in this embodiment in the immediate vicinity of the primary coil 1. Thus, analogous to the preceding embodiments, also by means of trilaterations the direction and optionally distance between the ultrasonic source 10 and receiving device 20 and thus between
Primärspule 1 und Sekundärspule 2 bestimmt werden. Die Auswertung der empfangenen Ultraschallsignale erfolgt in diesem Fall vorzugsweise durch eine Verarbeitungsvorrichtung 30, die in der Ladestation 3 angeordnet ist. Die so ermittelten Daten, also insbesondere Richtung und/oder Entfernung zwischen Primärspule 1 und Sekundärspule 2 können über eine Primary coil 1 and secondary coil 2 are determined. The evaluation of the received ultrasonic signals is in this case preferably by a Processing device 30, which is arranged in the charging station 3. The data thus determined, ie in particular the direction and / or distance between the primary coil 1 and the secondary coil 2, can be transmitted via a
Kommunikationsvorrichtung 50, 51 von der Ladestation 3 zu dem Communication device 50, 51 from the charging station 3 to the
Elektrofahrzeug 4 übertragen werden. Über die Kommunikationsvorrichtung 50,Electric vehicle 4 are transmitted. About the communication device 50,
51 zwischen Ladestation 3 und Elektrofahrzeug 4 können neben der ermittelten Richtung und/oder der Entfernung zwischen Primärspule 1 und Sekundärspule 2 auch weitere Informationen übertragen werden. Insbesondere können über diese Kommunikationsvorrichtung 50, 51 ein Ladezustand eines Energiespeichers in dem Elektrofahrzeug 4, Informationen über die Energieübertragung zwischen51 between the charging station 3 and the electric vehicle 4, in addition to the determined direction and / or the distance between the primary coil 1 and secondary coil 2, further information can be transmitted. In particular, via this communication device 50, 51 a state of charge of an energy store in the electric vehicle 4, information about the energy transfer between
Primärspule 1 und Sekundärspule 2, Daten zur Abrechnung oder zu den Kosten für den Ladevorgang oder weitere Parameter übertragen werden. Ist bereits eine konventionelle Kommunikationsvorrichtung zwischen Ladestation 3 und Primary coil 1 and secondary coil 2, data for billing or the cost of charging or other parameters are transmitted. Is already a conventional communication device between charging station 3 and
Elektrofahrzeug 4 vorhanden, so kann diese Kommunikationsvorrichtung auch dazu genutzt werden, Informationen über den Abstand bzw. die Richtung zwischen Primärspule 1 und Sekundärspule 2 zu übertragen. Auch wenn die Kommunikationsvorrichtung 50, 51 hier nur in Zusammenhang mit dem Electric vehicle 4 present, this communication device can also be used to transmit information about the distance or the direction between the primary coil 1 and secondary coil 2. Even if the communication device 50, 51 here only in connection with the
Ausführungsbeispiel aus Figur 3 beschrieben wurde, so ist grundsätzlich auch in allen anderen Ausführungsbeispielen eine entsprechende Embodiment of Figure 3 has been described, it is basically in all other embodiments, a corresponding
Kommunikationsvorrichtung 50, 51 zum Datenaustausch zwischen Ladestation 3 und Fahrzeug 4 möglich. Communication device 50, 51 for data exchange between charging station 3 and 4 vehicle possible.
Neben einfachen, konventionellen Ultraschallempfängern 11 kann als In addition to simple, conventional ultrasonic receivers 11 can as
Empfangsvorrichtung 10 auch ein Ultraschall- Array eingesetzt werden. Ein derartiges Ultraschall-Array ermöglicht eine direkte Richtungsmessung. Somit kann die Zuverlässigkeit der Bestimmung von Richtung und/oder Entfernung noch weiter gesteigert werden. Bei der Verwendung eines Ultraschall-Arrays auf der Empfangsseite sind bereits zwei Ultraschallsender 11 auf der Senderseite ausreichend, um eine Trilateration zur Richtungsbestimmung durchführen zu können. Receiving device 10 and an ultrasonic array are used. Such an ultrasonic array allows direct directional measurement. Thus, the reliability of the determination of direction and / or distance can be further increased. When using an ultrasonic array on the receiving side, two ultrasonic transmitters 11 on the transmitter side are already sufficient to be able to carry out a trilateration for determining the direction.
Zur weiteren Steigerung der Zuverlässigkeit können die Ultraschallsender 11 und die Ultraschallempfänger 21 über die Kommunikationsvorrichtung 50, 51 miteinander synchronisiert werden. Auf diese Weise kann zusätzlich To further increase the reliability, the ultrasonic transmitter 11 and the ultrasonic receiver 21 can be synchronized with each other via the communication device 50, 51. This way, in addition
sichergestellt werden, dass zur Bestimmung von Richtung und/oder Entfernung zwischen Primärspule 1 und Sekundärspule 2 jeweils die korrekten be sure to determine the direction and / or distance between the primary coil 1 and secondary coil 2 each have the correct
korrespondierenden Ultraschallsender 11 und Ultraschallempfänger 21 miteinander in Kontakt stehen. Ferner kann für die Bestimmung der relativen Position zwischen Primärspule 1 und Sekundärspule 2 auch die Bewegung der Sekundärspule 2 in dem corresponding ultrasonic transmitter 11 and ultrasonic receiver 21 are in contact with each other. Further, for the determination of the relative position between the primary coil 1 and the secondary coil 2, the movement of the secondary coil 2 in the
Elektrofahrzeug 4 ausgewertet werden. Hierzu kann die Electric vehicle 4 are evaluated. For this purpose, the
Verarbeitungsvorrichtung 30 die Bewegung des Elektrofahrzeugs 40 analysieren und mit in den Verarbeitungsprozess integrieren. Die Bewegung des Fahrzeugs 40 kann beispielsweise durch ein in dem Fahrzeug 4 vorhandenes  Processing device 30 analyze the movement of the electric vehicle 40 and integrate with the processing process. The movement of the vehicle 40 may, for example, by an existing in the vehicle 4
Navigationssystem ermittelt werden. Weitere Komponenten oder Vorrichtungen in dem Fahrzeug 40, die die Bewegung des Fahrzeugs 4 über dem Grund ermitteln oder schätzen, sind darüber hinaus ebenso möglich.  Navigation system to be determined. In addition, other components or devices in the vehicle 40 that detect or estimate the movement of the vehicle 4 over the ground are also possible.
Figur 4 zeigt eine schematische Darstellung eines Ablaufdiagramms, wie es einem Verfahren zur Assistenz zur Positionierung einer Sekundärspule an einer Primärspule für eine induktive Energieübertragung zugrunde liegt. FIG. 4 shows a schematic representation of a flowchart on which a method for assisting the positioning of a secondary coil on a primary coil for an inductive energy transmission is based.
In einem ersten Schritt Sl wird entweder eine Ultraschallquelle 10 an einer Primärspule 1 und eine Empfangsvorrichtung 20 an einer Sekundärspule 2 bereitgestellt. Alternativ kann auch eine Empfangsvorrichtung 20 an der Primärspule 1 und eine Ultraschallquelle 10 an der Sekundärspule 2 In a first step S1, either an ultrasound source 10 is provided at a primary coil 1 and a receiver 20 at a secondary coil 2. Alternatively, a receiving device 20 on the primary coil 1 and an ultrasonic source 10 on the secondary coil. 2
bereitgestellt werden. In beiden Fällen umfasst die Ultraschallquelle 10 mindestens zwei Ultraschallempfänger 11. In Schritt S2 wird durch die to be provided. In both cases, the ultrasound source 10 comprises at least two ultrasound receivers 11
Ultraschallquelle 10 ein Ultraschallsignal ausgesendet. Die Ultraschallquelle 10 kann einen oder mehrere Ultraschallsender 11 umfassen. Sofern die Ultrasonic source 10 emitted an ultrasonic signal. The ultrasound source 10 may include one or more ultrasound transmitters 11. Unless the
Ultraschallquelle 10 mehrere Ultraschallsender 11 umfasst, können die Ultrasonic source 10 comprises a plurality of ultrasonic transmitter 11, the
Ultraschallsender 11 entweder gleichzeitig oder nacheinander jeweils ein Ultraschallsignal aussenden. Das ausgesendete Ultraschallsignal kann dabei gepulst oder in einer beliebigen anderen Art und Weise moduliert bzw. kodiert werden. Ultrasonic transmitter 11 either simultaneously or sequentially emit an ultrasonic signal. The emitted ultrasonic signal can be pulsed or modulated or coded in any other way.
In Schritt S3 wird das ausgesendete Ultraschallsignal durch die In step S3, the transmitted ultrasonic signal is transmitted through the
Ultraschallempfänger 21 empfangen. Anschließend wird in Schritt S4 eine Richtung zwischen Empfangsvorrichtung 20 und Ultraschallquelle 10 bestimmt. Optional kann darüber hinaus auch eine Entfernung zwischen Empfangsvorrichtung 20 und Ultraschallquelle 10 bestimmt werden. Receive ultrasonic receiver 21. Subsequently, in step S4, a direction between receiving device 20 and ultrasound source 10 is determined. Optionally, in addition, a distance between the receiving device 20 and ultrasound source 10 can be determined.
Die bestimmte Richtung und gegebenenfalls auch die Entfernung zwischen Empfangsvorrichtung 20 und Ultraschallquelle 10 können auf einer The particular direction and possibly also the distance between the receiving device 20 and ultrasound source 10 can on a
Anzeigevorrichtung 40 angezeigt werden. Zusätzlich oder alternativ kann basierend auf der bestimmten Richtung und gegebenenfalls der bestimmten Entfernung zwischen Empfangsvorrichtung 20 und Ultraschallquelle 10 ein Elektrofahrzeug 4 mit einer Sekundärspule 2 in Richtung einer Ladestation 3 mit der Primärspule 1 navigiert werden, um die Sekundärspule 2 optimal über der Primärspule 1 zu positionieren. Display device 40 are displayed. Additionally or alternatively, based on the particular direction and optionally the particular distance between the receiving device 20 and ultrasound source 10, an electric vehicle 4 with a secondary coil 2 can be navigated towards a charging station 3 with the primary coil 1 to optimally position the secondary coil 2 over the primary coil 1 ,
Zusammenfassend betrifft die vorliegende Erfindung ein Assistenzsystem zur optimalen Positionierung von Primärspule und Sekundärspule einer induktiven Energieübertragung. Hierzu werden zwischen Primärspule und Sekundärspule Ultraschallsignale ausgetauscht. Die Ultraschallsignale werden von mehreren Ultraschallempfängern empfangen und basierend auf den Laufzeitunterschieden der empfangenen Ultraschallsignale eine relative Position zwischen Primärspule und Sekundärspule ausgewertet. Die relative Position kann einem Benutzer angezeigt werden, oder für eine automatische Positionierung der Sekundärspule genutzt werden. In summary, the present invention relates to an assistance system for optimum positioning of primary coil and secondary coil of an inductive energy transfer. For this purpose, ultrasonic signals are exchanged between the primary coil and the secondary coil. The ultrasonic signals are received by a plurality of ultrasonic receivers and evaluated based on the transit time differences of the received ultrasonic signals, a relative position between the primary coil and the secondary coil. The relative position can be displayed to a user, or used for automatic positioning of the secondary coil.

Claims

Ansprüche claims
1. Assistenzsystem zur Positionierung einer Sekundärspule (2) an einer Primärspule (1) für eine induktive Energieübertragung, mit: einer Ultraschallquelle (10), die dazu ausgelegt ist ein Ultraschallsignal auszusenden; einer Empfangsvorrichtung (20), mit mindestens einem An assistant system for positioning a secondary coil (2) on a primary coil (1) for inductive power transmission, comprising: an ultrasonic source (10) adapted to emit an ultrasonic signal; a receiving device (20), with at least one
Ultraschallempfänger (21), der dazu ausgelegt ist, die von der  Ultrasonic receiver (21), designed to be of the
Ultraschallquelle (10) ausgesendeten Ultraschallsignale zu umfangen; und einer Verarbeitungsvorrichtung (30), die dazu ausgelegt ist, die von dem oder den Ultraschallempfängern (21) empfangenen Ultraschallsignale auszuwerten und eine Richtung zwischen der Empfangsvorrichtung (20) und der Ultraschallquelle (10) zu bestimmen, wobei entweder die Ultraschallquelle (10) an der Primärspule (1) angeordnet ist und die Empfangsvorrichtung (20) an der Sekundärspule (2) angeordnet ist, oder die Empfangsvorrichtung (20) an der Primärspule (1) angeordnet ist und die Ultraschallquelle (10) an der Sekundärspule (2) angeordnet ist.  Ultrasonic source (10) to surround emitted ultrasonic signals; and a processing device (30) adapted to evaluate the ultrasonic signals received by the one or more ultrasound receivers (21) and to determine a direction between the receiving device (20) and the ultrasound source (10), either the ultrasound source (10) the primary coil (1) is arranged and the receiving device (20) is arranged on the secondary coil (2), or the receiving device (20) is arranged on the primary coil (1) and the ultrasonic source (10) is arranged on the secondary coil (2) ,
2. Assistenzsystem nach Anspruch 1, wobei die Verarbeitungsvorrichtung (30) ferner dazu ausgelegt ist, einen Abstand zwischen der The assistance system of claim 1, wherein the processing device (30) is further configured to maintain a distance between the
Empfangsvorrichtung (20) und der Ultraschallquelle (10) zu bestimmen  Receiving device (20) and the ultrasonic source (10) to determine
3. Assistenzsystem nach Anspruch 1 oder 2, wobei die Ultraschallquelle (10) eine Mehrzahl von Ultraschallsendern (11) umfasst, die in vorbestimmten räumlichen Abständen zueinander angeordnet sind. Assi Stenzsystem nach Anspruch 3, wobei die Ultraschallsender (11) jeweils ein individuell kodiertes Ultraschallsignal aussenden. The assistance system according to claim 1 or 2, wherein said ultrasonic source (10) comprises a plurality of ultrasonic transmitters (11) arranged at predetermined spatial distances from each other. Assi stem system according to claim 3, wherein the ultrasonic transmitter (11) each emit an individually coded ultrasonic signal.
Assistenzsystem nach Anspruch 3 oder 4, wobei die Ultraschallsender (11) sequentiell nacheinander jeweils ein Ultraschallsignal aussenden. Assistance system according to claim 3 or 4, wherein the ultrasound transmitters (11) sequentially emit in each case an ultrasound signal.
Assistenzsystem nach einem der Ansprüche 1 bis 5, mit einer Assistance system according to one of claims 1 to 5, with a
Anzeigevorrichtung (40), die dazu ausgelegt ist, die von der A display device (40) adapted to receive data from the
Verarbeitungsvorrichtung (30) bestimmte Richtung anzuzeigen. Processing device (30) indicate certain direction.
Assistenzsystem nach einem der Ansprüche 1 bis 6, Assistance system according to one of claims 1 to 6,
ferner umfassend eine Kommunikationsvorrichtung (50, 51), die dazu ausgelegt ist, Daten über die von der Verarbeitungsvorrichtung (30) bestimmte Richtung zu übertragen. further comprising a communication device (50, 51) adapted to transmit data via the direction determined by the processing device (30).
Assistenzsystem nach einem der Ansprüche 1 bis 7, wobei die Assistance system according to one of claims 1 to 7, wherein the
Sekundärspule (2) in einem Elektrofahrzeug (4) angeordnet ist und die Primärspule (1) in einer Ladestation (3) für das Elektrofahrzeug (4) angeordnet ist. Secondary coil (2) in an electric vehicle (4) is arranged and the primary coil (1) in a charging station (3) for the electric vehicle (4) is arranged.
Assistenzsystem nach Anspruch 8, wobei das Elektrofahrzeug (4) ferner eine Steuervorrichtung (5) umfasst, die dazu ausgelegt ist, das An assistance system according to claim 8, wherein the electric vehicle (4) further comprises a control device (5) adapted to operate the
Elektrofahrzeug (4) entsprechend der bestimmten Richtung in Richtung der Primärspule (1) zu steuern. Electric vehicle (4) according to the specific direction in the direction of the primary coil (1) to control.
Verfahren zur Assistenz für die Positionierung einer Sekundärspule (2) an einer Primärspule (1) für eine induktive Energieübertragung, mit den Schritten: Method for assisting the positioning of a secondary coil (2) on a primary coil (1) for an inductive energy transmission, comprising the steps of:
Bereitstellen (Sl) einer Ultraschallquelle (10) an der Primärspule (1) und einer Empfangsvorrichtung (20) an der Sekundärspule (2), oder einer Empfangsvorrichtung (20) an der Primärspule (1) und einer Providing (Sl) an ultrasonic source (10) on the primary coil (1) and a receiving device (20) on the secondary coil (2), or a receiving device (20) on the primary coil (1) and a
Ultraschallquelle (10) an der Sekundärspule (2), wobei die Ultraschallquelle (10) mindestens einen Ultraschallempfänger (11) umfasst; Aussenden (S2) eines Ultraschallsignals durch die Ultraschallquelle (10); Ultrasonic source (10) on the secondary coil (2), wherein the ultrasonic source (10) comprises at least one ultrasonic receiver (11); Emitting (S2) an ultrasound signal through the ultrasound source (10);
Empfangen (S3) des ausgesendeten Ultraschallsignals durch den oder die Ultraschallempfänger (21); und Receiving (S3) the emitted ultrasound signal by the one or more ultrasound receivers (21); and
Bestimmen (S4) einer Richtung zwischen der Empfangsvorrichtung (20) und der Ultraschallquelle (10) basierend auf den durch den oder die Ultraschallempfänger (21) empfangenen Ultraschallsignalen. Determining (S4) a direction between the receiving device (20) and the ultrasound source (10) based on the ultrasound signals received by the ultrasound receiver (s) (21).
PCT/EP2015/067247 2014-10-07 2015-07-28 System and method for assistance for the positioning of a secondary coil at a primary coil for inductive energy transmission WO2016055182A1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114270660A (en) * 2020-07-24 2022-04-01 华为技术有限公司 Charging method and charging device

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102017209092A1 (en) * 2017-05-31 2018-12-06 Robert Bosch Gmbh Method and device for locating a vehicle for inductive energy transmission
DE102017115327A1 (en) * 2017-07-10 2019-01-10 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Method and device for positioning a motor vehicle above a floor panel
WO2023208367A1 (en) * 2022-04-29 2023-11-02 Siemens Aktiengesellschaft Measuring unit and charging device

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050137748A1 (en) * 2003-12-22 2005-06-23 Se-Wan Kim Apparatus and method for detecting position of mobile robot
WO2010040962A1 (en) * 2008-10-09 2010-04-15 Peugeot Citroën Automobiles SA Electric or partially electric automobile, associated recharging infrastructure for automatically positioning the vehicle relative to the infrastructure, and related method
DE102012219986A1 (en) * 2012-10-31 2014-06-12 Siemens Aktiengesellschaft Position determination of a vehicle relative to a target position

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2767279A1 (en) 2009-07-15 2011-01-20 Conductix-Wampfler Ag System for inductively charging vehicles, comprising an electronic positioning aid

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050137748A1 (en) * 2003-12-22 2005-06-23 Se-Wan Kim Apparatus and method for detecting position of mobile robot
WO2010040962A1 (en) * 2008-10-09 2010-04-15 Peugeot Citroën Automobiles SA Electric or partially electric automobile, associated recharging infrastructure for automatically positioning the vehicle relative to the infrastructure, and related method
DE102012219986A1 (en) * 2012-10-31 2014-06-12 Siemens Aktiengesellschaft Position determination of a vehicle relative to a target position

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114270660A (en) * 2020-07-24 2022-04-01 华为技术有限公司 Charging method and charging device
CN114270660B (en) * 2020-07-24 2024-04-09 华为技术有限公司 Charging method and charging device

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