WO2013189530A1 - Module à bobines de détection, module à bobines de transfert d'énergie et système de détection pour la reconnaissance de corps étrangers électriquement conducteurs - Google Patents

Module à bobines de détection, module à bobines de transfert d'énergie et système de détection pour la reconnaissance de corps étrangers électriquement conducteurs Download PDF

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Publication number
WO2013189530A1
WO2013189530A1 PCT/EP2012/061803 EP2012061803W WO2013189530A1 WO 2013189530 A1 WO2013189530 A1 WO 2013189530A1 EP 2012061803 W EP2012061803 W EP 2012061803W WO 2013189530 A1 WO2013189530 A1 WO 2013189530A1
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WO
WIPO (PCT)
Prior art keywords
detection
coil
coil assembly
multipole
energy
Prior art date
Application number
PCT/EP2012/061803
Other languages
German (de)
English (en)
Inventor
Markus Vester
Andreas Krug
Axel Vom Endt
Peter Dietz
Sascha Fath
Thomas Komma
Jürgen NISTLER
Original Assignee
Siemens Aktiengesellschaft
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Siemens Aktiengesellschaft filed Critical Siemens Aktiengesellschaft
Priority to DE112012006570.0T priority Critical patent/DE112012006570A5/de
Priority to CN201280074119.2A priority patent/CN104395131B/zh
Priority to PCT/EP2012/061803 priority patent/WO2013189530A1/fr
Publication of WO2013189530A1 publication Critical patent/WO2013189530A1/fr

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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V3/00—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation
    • G01V3/08—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices
    • G01V3/10—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices using induction coils
    • G01V3/104—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices using induction coils using several coupled or uncoupled coils
    • 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
    • B60L53/124—Detection or removal of foreign bodies
    • 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
    • B60L53/38—Means for automatic or assisted adjustment of the relative position of charging devices and vehicles specially adapted for charging by inductive energy transfer
    • 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
    • B60L2210/00—Converter types
    • B60L2210/30—AC to DC converters
    • 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
    • B60L2210/00—Converter types
    • B60L2210/40—DC to AC converters
    • 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
    • B60L2270/00—Problem solutions or means not otherwise provided for
    • B60L2270/10—Emission reduction
    • B60L2270/14—Emission reduction of noise
    • B60L2270/147—Emission reduction of noise electro magnetic [EMI]
    • 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
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/72—Electric energy management in electromobility
    • 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

Definitions

  • the invention relates to a detection coil assembly for detecting electrically conductive foreign bodies in the region of an energy end coil.
  • a detection coil assembly for detecting electrically conductive foreign bodies in the region of an energy end coil.
  • an electrically conductive foreign body to be detected may also comprise an electrically conductive non-metallic material, for example an electrically conductive liquid.
  • the invention relates to a power transmission coil assembly for an inductive power transmission system, wherein the energy transmission coil assembly for power transmission comprises a power transmission coil.
  • the invention relates to a detection system for detecting electrically conductive foreign bodies in the region of an energy end coil.
  • inductive power transmission systems are being developed. These consist of a coil pair, which is operated by means of a resonant converter.
  • a fixedly mounted in a Absteil configuration energy end coil leads an alternating current (for example, with a frequency of, for example, about 140 kHz), which induces a voltage in a mobile receiving coil in or under the vehicle floor.
  • transmitted powers of several kilowatts the magnetic flux density in the gap (air gap) of the transformer formed in this way is so large that metal parts
  • a detection system which reliably detects disturbing metallic objects in the region of the magnetic field.
  • the impedance is only slightly influenced by small objects, but strongly depends on the distance to the extended vehicle floor and the receiving coil.
  • Alternative detection methods such as optical or infrared cameras, radar or ultrasound are out of the question because of the lack of robustness, the sensitivity to contamination, and also for cost reasons.
  • DE 10 2009 033 237 A1 describes a measuring device for measuring the impedance of a measuring inductor and an evaluation device connected to the measuring device.
  • a plurality of measuring inductances are provided which form regular two-dimensional arrays extending in a plane which is perpendicular to the main direction of the magnetic field generated by a primary inductor.
  • the known measuring device places high demands on a dynamic range and on a temporal stability of the evaluation.
  • the high demands on the dynamic range and on the temporal stability of the evaluation can increase manufacturing costs and impair the reliability of a detection system for detecting electrically conductive foreign bodies.
  • the object of the invention is to provide a detection coil assembly, an energy transmission coil assembly and a detection system for detecting electrically conductive foreign bodies, which places lower demands on a dynamic range and on temporal stability of the evaluation.
  • this object is achieved in that a detection coil module is provided for detecting electrically conductive foreign bodies in the region of an energy end coil, wherein the detection coil module has at least one first multipole detection coil with at least two mutually opposing turns.
  • the multipole detection coil can be used to detect a magnetic field generated by another coil.
  • the other coil may be a monopole coil or also a multipole coil.
  • the multipole detection coil can be used to generate a magnetic field sensed by another coil.
  • the other coil may be a monopole coil or also a multipole coil.
  • the multipole detection coil can be used to generate a magnetic field detected by the multipole detection coil itself.
  • the latter alternative corresponds to the known, initially described induction measuring method supplemented by the feature according to the invention that the detection coil has at least two mutually opposite turns.
  • the object according to the invention is achieved by providing an energy transmission coil assembly for an inductive energy transmission system, which comprises a power transmission coil for energy transmission, wherein the Energy transmission coil assembly comprises a detection coil assembly according to the invention.
  • the energy transfer coil can be a (fixed or mobile) primary coil or a (stationary or mobile) secondary coil.
  • the object according to the invention is achieved by providing a detection system for detecting electrically conductive foreign bodies in the region of an energy end coil, which comprises an energy transmission coil unit according to the invention and is prepared to supply detection signals to be detected in the electrically conductive foreign body detect, which are excited by means of the energy transmission coil, the detection coil assembly or an additional detection transmitting coil in the electrically conductive foreign body.
  • the detection coil module comprises at least one first multipole detection coil having at least two mutually opposing turns, such influences at least partially compensate for the magnetic field detected by the multipole detection coil, which is due to the presence of a large-area object .
  • the evaluation of the terminal behavior of the multipole detection coil and detection of the presence of one or more small-area objects is simplified , In the ideal case, due to the presence of a large-area object, conditioned influences on the magnetic field detected by the multipole detection coil largely or completely compensate each other. In this case, the evaluation of the terminal behavior of the multipole detection coil and detection of the presence of one or more small-area objects in an optimal manner are simplified.
  • the multipole detection coil is designed as a radial or Cartesian meander. If the Multipole detection coil is formed with a larger number of mutually opposing turns, arise Multipolfeider with high spatial frequencies, which decrease much faster with increasing distance than the dipole field for
  • the detection coil assembly comprises at least one further multipole detection coil which offset in relation to the first multipole detection coil in a direction transverse to a main field direction and / or around the main field direction
  • Angle is arranged rotated.
  • an electrically conductive object with greater probability which is located partly both in a region of a first pole and in a region of a second pole of the multipole detection coil.
  • the spatial offset between the two multipole detection coils is a quarter period of the multipole grid and / or if the angle is a right angle. This maximizes a spatial resolution capability of the detection coil assembly comprising two multipole detection coils.
  • the detection coil module may be expedient for the detection coil module to comprise a diversity receiving device for generating a combined detection signal which is derived from detection signals of both multipole detection coils and is insensitive to phase. As a result, a resolution capability of the detection coil module with two multipole detection coils can be used.
  • the diversity receiving device comprises a rectifier, wherein a first rectifier input of the rectifier is connected to the first multipole detection coil and a second
  • Rectifier input of the rectifier is connected to the second multipole detection coil.
  • the diversity receiving device comprises a phase shifter, wherein a first input of the phase shifter is connected to the first multipole detection coil and a second input of the phase shifter is connected to the second multipole detection coil.
  • electrical signals that can be detected by the two multipole detection coils can be combined to form an electrical signal and evaluated by evaluating only one electrical signal.
  • a particularly preferred embodiment provides that the multipole detection coil is magnetically zeroed to the energy end coil.
  • the detection system is prepared to carry out the foreign body detection and the energy transmission separately in the frequency and / or time division multiplex. As a result, a disturbing influence of the energy transfer to the foreign body detection can be avoided.
  • FIG. 1 shows schematically a detection system according to the invention
  • FIG. 2 schematically shows a plan view of a first embodiment of a detection coil assembly with a detection transmitting coil and a detection receiving coil
  • 1 schematically shows a plan view of a second embodiment of a detection coil assembly with a detection transmitting coil and a detection receiving coil.
  • FIG. 2 is a schematic plan view of a third embodiment of a detection coil assembly with a detection transmitting coil and a detection receiving coil.
  • FIG. 5 schematically shows a cross section through the third embodiment with magnetic field lines during operation of the detection system
  • FIG. 6 schematically shows a plan view of a fourth embodiment, which has two detection receiving coils, which are arranged one above the other flat; 7 schematically shows a cross section through the fourth embodiment with magnetic field lines during operation of the detection system; 8 schematically shows a first circuit for generating a combined detection signal from detection signals which are generated by four detection receiving coils;
  • FIG. 9 shows schematically a second circuit for generating a combined detection signal from detection signals which are generated by two detection receiving coils.
  • the energy transmission system 10 shown in FIG. 1 shows a vehicle 90 above a stationary, inductive energy transfer station 11.
  • the energy transfer station 11 comprises an energy-end coil 14, which is made of ferrite 16 in a yoke embedded, a transmitter 20 for generating an AC voltage and a coupling capacitance 22.
  • the energy-emitting coil 14 may be, for example, a planar coil.
  • an energy-receiving coil 94 which is embedded in a yoke 96 made of ferrite, is arranged in the vehicle floor 92.
  • the power receiving coil 94 may be, for example, a planar coil.
  • the energy receiving coil 94 is connected via a capacitor 97 and a rectifier 98 to a vehicle-mounted charging circuit 99.
  • the variable magnetic field 51 which is provided by means of the energy-emitting coil 14, generates eddy currents in the electrically conductive foreign body 80.
  • the electrically conductive foreign object 80 eg, a keychain
  • the electrically conductive foreign object 80 may be damaged by the heating, damage the power transfer station 11, and / or present a hazard to persons touching the electrically conductive foreign object 80 (eg, for removal).
  • the energy transmission station 11 comprises a detection system 30.
  • the detection system 30 comprises a plurality of detection receiving coils 32, 32 '(see FIG. 6), a transmission module 12 and an evaluation circuit 36.
  • the detection system 30 includes a detection transmitting coil.
  • the energy-emitting coil 14 is used not only for emitting the energy to be transmitted, but also as a detection transmitting coil.
  • the detection receiving coil 32 does not need to be very low in resistance, so that thin wires 33 or traces on a printed circuit board are suitable therefor.
  • a structural unit in which a plurality of detection receiving coils 32 or detection transmitting coils are combined is referred to below as the detection coil module 34.
  • An assembly in which a detection coil assembly 34 and an energy-emitting coil 14 or a power-receiving coil 94 are combined is referred to below as the energy-transmission coil assembly 13.
  • the energy transmission coil 14 is used as a detection transmitting coil with.
  • the detection receiving coil 32 is designed as a multipole coil. 2 to 5 show a selection of possible designs.
  • FIG. 2 shows the design of a gradiometer, that is to say of two half-coils 37, 38, which are connected in series and together form a butterfly shape. In general, it is desirable that the detection range of the detection receiving coil 32 falls in the vertical direction over a much shorter distance than in the gradiometer design.
  • FIG. 3 shows a first design in which a winding circumference of the detection transmitting coil 31 is crossed by meanders 40 of the detection receiving coil 32.
  • FIG. 4 shows a second design in which the meander 40 of the detection receiving coil 32 crosses the energy-emitting coil 14 over its entire diameter.
  • FIG. 5 shows a cross section through the third embodiment with the yoke 16 and magnetic field lines 61, 62 during operation of the detection system 30.
  • the dashed field lines 61 show field lines which are generated by means of the energy transmission coil 14.
  • the solid field lines 62 show field lines that would be generated by the detection receive coil 32 when used as a detection transmit coil.
  • the energy-emitting coil 14 forms only one magnetic pole 71, while the detection-receiving coil 32 forms a plurality of magnetic poles 72.
  • the detection receiving coil 32 is thus a multipole coil. Due to the meandering shape of the detection receiving coil 32, the individual poles 72 of the multipole coil have approximately the same effect, so that the field components of the poles 72 largely cancel each other over a plurality of meanders. In this way, it can be achieved that the magnetic field 52 of the detection receiving coil 32 does not extend as far upwards as the magnetic field 51 of the energy transmitting coil 14. Regardless of this, it can also be achieved that the detection receiving coil 32 faces the energy end coil 14 is zeroed.
  • this magnetic field 52 is equivalent to a sensitivity profile for dipole moments induced in the electrically conductive foreign body 80 when the detection receiving coil 32 is used as a receiving coil.
  • an isotropic electrically conductive foreign body 80 for example a metal ball
  • the fourth embodiment shown in plan view in FIG. 6 which has two detection receiving coils 32, 32 '.
  • the detection receiving coils 32, 32 ' are arranged one above the other flatly.
  • n detection receiving coils 32, 32' which are offset by a meander period ⁇ divided by 2n, where n is a natural number greater 1 is.
  • FIG. 6 and FIG. 7 show, for n equal to two, a cross section through the fourth embodiment with magnetic field lines 62, 62 'during operation of the detection system 30.
  • the detection signals 54, 54 'from the individual detection receiving coils 32, 32' no isotropic sensitivity of the detection system 30 with respect to the stray field direction 63 can be achieved, but new zeros would be created.
  • FIG. 8 shows a first circuit 100 for generating a combined detection signal 55 from detection signals 54, 54 ', 54'',54''' generated by four detection receiving coils 32.
  • each of the detection signals 54, 54 ', 54 “, 54” is provided to a separate rectifier 102, 102', 102 ", 102", which provides the respective rectified signal to an adder 104.
  • the adder 104 forms an addition result representing the combined detection signal 55.
  • FIG. 9 schematically shows a second circuit 200 for generating a combined detection signal 55 from detection signals 54, 54 ', which are generated by two detection receiving coils 32, 32'.
  • the detection signals 54, 54 'of the two detection receiving coils 32, 32' are brought together by means of a 90 ° phase shifter 202, so that the (reciprocal) magnetic field 52 of the detection receiving coils 32, 32 'forms a circular or elliptically polarized rotating field.
  • the combined detection signal 55 can be compared with a threshold value. If the threshold value has been exceeded, this information can be used to switch off the transmitter 20 so as to avoid generation of eddy currents in electrically conductive foreign bodies 80 lying on the energy transfer station 11. remained.
  • the detection system 30 described so far also uses the main field 51 of the energy emitting coil 14 to excite detection signals 54, 54 by means of the electrically conductive foreign body 80 and a system of multipole detection coils 32, 32 'for receiving.
  • the detection of debris 80 is also possible in the same way when the power transmission system 10 is operated in a reverse effective direction to transfer energy from the vehicle 90 into a fixed network 12.
  • the detection system 30 can be operated, for example, with a frequency that differs from a frequency for the transmission of energy, or operated in a temporal change to the energy transfer.

Abstract

Pour reconnaître des corps étrangers électriquement conducteurs (80) dans la zone d'une bobine d'émission d'énergie (14), selon l'invention, un module à bobines de détection (34) comprend au moins une première bobine de détection multipôle (31,32) dotée d'au moins deux bobinages opposés l'un à l'autre (35, 36). En outre, l'invention concerne un module à bobines de transfert d'énergie (13) pour un système de transfert d'énergie inductif (10), le module à bobines de transfert d'énergie (13) comprenant une bobine de transfert d'énergie (14, 94) pour le transfert d'énergie. En outre, le module à bobines de transfert d'énergie (13) comprend un module à bobines de détection (34) selon l'invention. Par ailleurs, l'invention concerne un système de détection (30) pour reconnaître des corps étrangers électriquement conducteurs (80) dans la zone d'une bobine d'émission d'énergie (14). Le système de détection (30) comprend un module à bobines de transfert d'énergie (13) selon l'invention et est à même d'enregistrer des signaux de détection (54) dans le corps étranger (80) électriquement conducteur à reconnaître, qui sont excités au moyen de la bobine de transfert d'énergie (14), du module à bobines de détection (34) ou d'une bobine d'émission de détection supplémentaire dans le corps étranger électriquement conducteur (80).
PCT/EP2012/061803 2012-06-20 2012-06-20 Module à bobines de détection, module à bobines de transfert d'énergie et système de détection pour la reconnaissance de corps étrangers électriquement conducteurs WO2013189530A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE112012006570.0T DE112012006570A5 (de) 2012-06-20 2012-06-20 Detektionsspulen-Baueinheit, Energieübertragungsspulen-Baueinheit und Detektionssystem zum Erkennen von elektrisch leitfähigen Fremdkörpern
CN201280074119.2A CN104395131B (zh) 2012-06-20 识别导电异体的探测线圈组件、能量传输线圈组件和探测系统
PCT/EP2012/061803 WO2013189530A1 (fr) 2012-06-20 2012-06-20 Module à bobines de détection, module à bobines de transfert d'énergie et système de détection pour la reconnaissance de corps étrangers électriquement conducteurs

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2012/061803 WO2013189530A1 (fr) 2012-06-20 2012-06-20 Module à bobines de détection, module à bobines de transfert d'énergie et système de détection pour la reconnaissance de corps étrangers électriquement conducteurs

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WO2013189530A1 true WO2013189530A1 (fr) 2013-12-27

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PCT/EP2012/061803 WO2013189530A1 (fr) 2012-06-20 2012-06-20 Module à bobines de détection, module à bobines de transfert d'énergie et système de détection pour la reconnaissance de corps étrangers électriquement conducteurs

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DE (1) DE112012006570A5 (fr)
WO (1) WO2013189530A1 (fr)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014207253A1 (de) * 2014-04-15 2015-10-15 Siemens Aktiengesellschaft Vorrichtung und Verfahren zum Überprüfen eines Vorhandenseins eines elektrisch leitfähigen Körpers
DE102014207427A1 (de) * 2014-04-17 2015-10-22 Bombardier Transportation Gmbh Vorrichtung und Verfahren zur Detektion eines Störkörpers in einem System zur induktiven Energieübertragung sowie System zur induktiven Energieübertragung
EP2942228A1 (fr) * 2014-05-05 2015-11-11 Delphi Technologies, Inc. Antenne de référence à gain variable pour dispositif de charge sans contact
DE102015212947A1 (de) * 2015-07-10 2017-01-12 Siemens Aktiengesellschaft Vorrichtung zum Überprüfen eines Vorhandenseins eines elektrisch leitfähigen Körpers und die Vorrichtung beinhaltende Ladeanordnung
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EP3249783A4 (fr) * 2015-01-19 2018-11-14 IHI Corporation Système de transmission d'énergie, dispositif de détection de corps étrangers et dispositif de bobine
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US10933759B2 (en) 2015-01-19 2021-03-02 Ihi Corporation Power transmission system, foreign object detection device, and coil device
EP3979462A1 (fr) * 2015-01-19 2022-04-06 IHI Corporation Système de transmission de puissance, dispositif de détection d'objets étrangers et dispositif de bobine
DE102015212947A1 (de) * 2015-07-10 2017-01-12 Siemens Aktiengesellschaft Vorrichtung zum Überprüfen eines Vorhandenseins eines elektrisch leitfähigen Körpers und die Vorrichtung beinhaltende Ladeanordnung
US10938445B2 (en) 2015-07-10 2021-03-02 Siemens Aktiengesellschaft Checking a presence of an electrically conductive body
CN109564192A (zh) * 2016-08-15 2019-04-02 虹霓机械制造有限公司 用于识别制品中的导电元件的测量装置和方法及用于制造烟草加工业制品的机器
WO2018091192A1 (fr) * 2016-11-16 2018-05-24 Robert Bosch Gmbh Dispositif de charge par induction d'un véhicule électrique et procédé de détection de corps étrangers électroconducteurs dans un dispositif de ce type
DE102017210409A1 (de) * 2017-06-21 2018-12-27 Audi Ag Komponente einer induktiven Energieübertragungsvorrichtung mit Objekterkennung sowie Verfahren zum Betreiben einer induktiven Energieübertragungsvorrichtung
US11046194B2 (en) 2017-06-21 2021-06-29 Audi Ag Component of an inductive energy transmission apparatus with object recognition and method for operating an inductive energy transmission apparatus
NL2019616B1 (en) * 2017-09-22 2019-03-28 Prodrive Tech Bv Device and method for foreign object detection in wireless energy transfer
WO2019057777A1 (fr) * 2017-09-22 2019-03-28 Prodrive Technologies B.V. Dispositif et procédé de détection d'objet étranger dans un transfert d'énergie sans fil

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