WO2017092950A1 - Procédé de fonctionnement d'un dispositif de surveillance d'un dispositif de transfert d'énergie par induction - Google Patents

Procédé de fonctionnement d'un dispositif de surveillance d'un dispositif de transfert d'énergie par induction Download PDF

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Publication number
WO2017092950A1
WO2017092950A1 PCT/EP2016/076387 EP2016076387W WO2017092950A1 WO 2017092950 A1 WO2017092950 A1 WO 2017092950A1 EP 2016076387 W EP2016076387 W EP 2016076387W WO 2017092950 A1 WO2017092950 A1 WO 2017092950A1
Authority
WO
WIPO (PCT)
Prior art keywords
coil
meas
monitoring device
uij
stored
Prior art date
Application number
PCT/EP2016/076387
Other languages
German (de)
English (en)
Inventor
Gabriel Krein
Philipp Schumann
Original Assignee
Robert Bosch Gmbh
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 Robert Bosch Gmbh filed Critical Robert Bosch Gmbh
Publication of WO2017092950A1 publication Critical patent/WO2017092950A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/60—Circuit arrangements or systems for wireless supply or distribution of electric power responsive to the presence of foreign objects, e.g. detection of living beings
    • 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
    • B60L53/10—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
    • B60L53/126—Methods for pairing a vehicle and a charging station, e.g. establishing a one-to-one relation between a wireless power transmitter and a wireless power receiver
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/10—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/90—Circuit arrangements or systems for wireless supply or distribution of electric power involving detection or optimisation of position, e.g. alignment
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10—Technologies relating to charging of electric vehicles
    • Y02T90/14—Plug-in electric vehicles

Definitions

  • the present invention relates to a method for operating a
  • Electric vehicles and hybrid vehicles usually have an electrical energy storage, such as a traction battery, which provides the electrical energy for propulsion. Is this electric
  • Electric vehicle is connected by a cable connection to the charging station. This connection must usually be made manually by a user. It is also necessary that charging station and
  • Electric vehicle have a mutually corresponding connection system. Furthermore, occasionally wireless charging systems for electric vehicles or hybrid vehicles are known. For this purpose, an electric vehicle is parked above a transmitting coil (transmitting device) or a charging pad or charging device. This coil emits a high frequency alternating magnetic field.
  • a transmitting coil transmitting device
  • a charging pad or charging device This coil emits a high frequency alternating magnetic field.
  • alternating magnetic field is from a receiving coil (charging coil or
  • Receiving device received within the vehicle and converted into electrical energy.
  • a traction battery of the vehicle can then be charged.
  • the document DE 10 2011 010 049 AI discloses such a system for charging a vehicle battery, in which the energy is transmitted inductively.
  • the energy storage of the electric vehicle can also be used for feeding back.
  • a cable connection or an inductive energy or power transmission can also be used.
  • the transmitting coil of the transformer either embedded in the street floor or formed as a floor-mounted charging plate (charging pad) and is connected by means of suitable electronics to the mains.
  • the receiving coil of the transformer is typically fixedly mounted in the underbody of the vehicle and in turn by means of suitable electronics with the
  • the transmitting coil or primary coil For energy transmission, the transmitting coil or primary coil generates a high-frequency alternating field, which is the
  • Reception coil or secondary coil penetrates and induces a corresponding current there.
  • the transmitted power is linear with the
  • Control electronics and losses in the transmission path is limited, results in a typical frequency range of 30 - 150 kHz.
  • Air gaps in the size of 3-30 cm are very common, if not by measures such as
  • Known methods of foreign object detection expediently consist of conventional metal detectors whose core element is one or more sensor coils. These methods are based on active excitation of the sensor coil / sensor coils and measurement of the change of the sensor coil
  • MOD metal object detection method
  • Example meander-shaped sensor coils suggest) to perform a metal detection can. Both are associated with significant disadvantages.
  • the inventive method with the characterizing part of claim 1 has the advantages that a short-term shutdown of the energy transfer (and thus of the magnetic main field) with respect to an efficient object recognition is no longer necessary. According to the invention, it is provided that in the method for operating a monitoring device for monitoring an inductive
  • the monitoring device comprises a data memory, in the reference maps Uij.meas-ref depending on
  • Offset parameters dx, dy, dz are stored between the transmitting coil and the receiving coil, in a first method step (A) the present offset parameters dx, dy, dz between the transmitting coil and the receiving coil are determined. In a second method step (B), a voltage Uij, meas induced by the magnetic field is measured in terms of magnitude and phase by means of the coil array.
  • a third method step (C) the determined measured values of the induced voltage Uij.meas are compared with reference characteristic diagrams Uij.meas-ref stored in the data memory and finally in a fourth method step (D) on the basis of the deviations between measured values of the induced voltage Uneas and in the data memory stored reference maps U, meas-ref on the arrival or
  • the voltage induced by the magnetic field Uij.meas is measured by means of a coil array, which is designed to monitor a gap between the at least one transmitting coil and the at least one receiving coil.
  • a coil array can be a clear better spatial resolution can be achieved, whereby foreign objects in the field of energy transfer can be better localized.
  • the coil array rests on the transmitting coil or is installed on the top of the transmitting coil.
  • the monitoring device requires only a very small footprint and can also be run over by the vehicle to be loaded.
  • another coil array can be installed on the vehicle-side receiver coil, so that monitoring is also ensured by the vehicle forth.
  • the individual coils of the coil array are made flat. Due to this design, the single coils can be installed very well in a flat charging pad.
  • the geometry of the turns of the individual coils may alternatively have a circular, n-square, square, or cuboid shape.
  • the monitoring device works passively.
  • the passive mode of operation eliminates the need for the monitoring device /
  • Coil array any type of Anreschaltaltung.
  • the main magnetic field does not have to be switched off or the energy transfer must be interrupted in order to be able to carry out a metal detection. This makes the energy transfer more efficient and it can be a continuous one
  • the transmission coil is deactivated in the presence of a foreign object in the intermediate space or the power is reduced when an intrusion of an object has been detected.
  • Fig. 1 a schematic representation of a vehicle and a
  • FIG. 2 shows a schematic representation of a coil array.
  • Figure 1 shows a schematic representation of a vehicle 19, a
  • the vehicle / electric vehicle / hybrid vehicle 19 is in a standing state.
  • the traction battery 18 is over the
  • Inductive energy transfer device 10 is charged.
  • a transmitting coil / transmitting device 11 is embedded in the subfloor 20 and rests on the subfloor 20.
  • the receiving coil / receiving device 12 is in Vehicle 19 arranged - preferably in the underbody of the vehicle 19th
  • the monitoring device 13 is arranged in this intermediate space 14 and preferably lies on the transmitting coil 11.
  • the monitoring device 13 comprises a coil array 15, which has individual coils 16.1, 16.2,... 16n.
  • the inductive energy transmission device 10 has a data memory 17. In this data memory 17 are
  • the spatial offset parameters dx, dy, dz result from the fact that the receiving coil is shifted horizontally in the X and Y directions relative to the transmitting coil 11 located in the bottom 20 as well as vertically in the Z direction relative to the transmitting coil 11.
  • Offset parameters dy, dy, dz between the transmitting coil 11 and the receiving coil 12 are determined. This measurement determines how much the receiver coil differs from the original calibration in the horizontal and vertical directions from the original calibration ex works.
  • a voltage Uij, meas induced by the magnetic field is measured in terms of magnitude and phase by means of the coil array.
  • the determined measured values of the voltage Uij.meas induced in the coil array are stored in the data memory 17 Reference maps Uij.meas-ref compared.
  • a fourth method step D reference is made to the presence or absence of a foreign object on the basis of the deviation between measured values of the induced voltage Uij.meas and reference characteristic maps stored in the data memory at Uij, meas-ref. It is also quite another course of the process conceivable.
  • the induced voltages Uij, meas can be measured with magnitude and phase in all individual coils of the coil array 15. These measured values of the induced voltages Uij.meas are finally compared with previously stored reference characteristic diagrams Uij.meas-ref, wherein the
  • Offset parameters dx, dy, dz of the energy transmission device are stored. Now it must be distinguished. In the first case, the displacement situation that is actually present during the measurement is known. In this case, the relevant reference values can be taken directly from the stored maps (possibly by interpolation between interpolation points).
  • the displacement situation that is actually present during the measurement is unknown.
  • the offset situation (offset parameters dy, dy, dz) present during the specific measurement can be determined from the comparison with the stored reference characteristic diagrams.
  • the possible deviation from the reference due to a metallic object is of no importance because it is present only on one sensor coil or a few sensor coils / individual coils of the coil array (15) (depending on the size of the foreign object) and all other individual coils of the coil array "correct".
  • the presence of a significant deviation from the reference distribution of the stresses for the actual displacement situation determined in the present two cases the presence of a
  • Transmitter coil 11 and receiving coil 12 are used, as well as for
  • Vehicle positioning are used.
  • FIG. 2 shows a schematic representation of the coil array 15. Same

Abstract

La présente invention concerne un procédé destiné à faire fonctionner un dispositif de surveillance d'un dispositif de transfert d'énergie par induction d'au moins une bobine d'émission à au moins une bobine de réception espacée de l'au moins une bobine d'émission. Le dispositif de surveillance comprend une mémoire de données dans laquelle sont stockés des caractéristiques de référence Uij,meas-ref en fonction de paramètres de décalage dx, dy, dz entre la bobine d'émission et la bobine de réception. Dans une première étape de procédé (A), on détermine les paramètres de décalage actuels dx, dy, dz entre la bobine d'émission et la bobine de réception. Dans une deuxième étape du procédé, on mesure une tension Uij,meas, induite par le champ magnétique, en amplitude et en phase au moyen du réseau de bobines. Dans une troisième étape de procédé (C), on compare les valeurs de mesure déterminées de la tension induite Uij,meas avec des caractéristiques de référence Uij,meas-ref stockées dans la mémoire de données et enfin, dans une quatrième étape de procédé (D), on déduit la présence ou l'absence d'un objet étranger sur la base des écarts entre les valeurs de mesure de la tension induite Uij,meas et les caractéristiques de référence Uij,meas-ref stockés dans la mémoire de données.
PCT/EP2016/076387 2015-12-02 2016-11-02 Procédé de fonctionnement d'un dispositif de surveillance d'un dispositif de transfert d'énergie par induction WO2017092950A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102015224013.4 2015-12-02
DE102015224013.4A DE102015224013A1 (de) 2015-12-02 2015-12-02 Verfahren zum Betrieb einer Überwachungsvorrichtung zur Überwachung einer induktiven Energieübertragungsvorrichtung

Publications (1)

Publication Number Publication Date
WO2017092950A1 true WO2017092950A1 (fr) 2017-06-08

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PCT/EP2016/076387 WO2017092950A1 (fr) 2015-12-02 2016-11-02 Procédé de fonctionnement d'un dispositif de surveillance d'un dispositif de transfert d'énergie par induction

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Country Link
DE (1) DE102015224013A1 (fr)
TW (1) TW201729511A (fr)
WO (1) WO2017092950A1 (fr)

Cited By (1)

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CN111655533A (zh) * 2018-02-06 2020-09-11 罗伯特·博世有限公司 感应式充电装置和用于监控感应式充电装置的方法

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DE102017210409A1 (de) 2017-06-21 2018-12-27 Audi Ag Komponente einer induktiven Energieübertragungsvorrichtung mit Objekterkennung sowie Verfahren zum Betreiben einer induktiven Energieübertragungsvorrichtung
US11404910B2 (en) 2018-03-23 2022-08-02 Raytheon Company Multi-cell inductive wireless power transfer system
DE102018210239A1 (de) * 2018-06-22 2019-12-24 Continental Automotive Gmbh Vorrichtung zur Ermittlung der Position einer Sekundärspule über einer Primärspule bei einem System zur induktiven Energieübertragung
DE102018130865A1 (de) * 2018-12-04 2020-06-04 Innogy Se Positionierungssystem zum Positionieren eines Kopplungselements für einen Ladevorgang an einem elektrisch betriebenen Fahrzeug
CN113199948A (zh) * 2021-05-26 2021-08-03 大连海事大学 一种无线充电检测装置

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US20140111019A1 (en) * 2012-10-19 2014-04-24 Witricity Corporation Foreign object detection in wireless energy transfer systems
US20150028849A1 (en) * 2011-12-16 2015-01-29 Auckland Uniservice Limited Inductive power transfer system and method
DE102014205598A1 (de) * 2014-03-26 2015-10-01 Robert Bosch Gmbh Überwachungsvorrichtung für mindestens eine zur induktiven Energieübertragung ausgelegte elektrische Vorrichtung und Verfahren zum Überwachen zumindest einer Teilumgebung mindestens einer zur induktiven Energieübertragung ausgelegten elektrischen Vorrichtung

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DE102011010049A1 (de) 2011-02-01 2011-11-03 Daimler Ag Ladevorrichtung und Verfahren zum Laden einer Batterie eines Fahrzeugs

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Publication number Priority date Publication date Assignee Title
US20150028849A1 (en) * 2011-12-16 2015-01-29 Auckland Uniservice Limited Inductive power transfer system and method
US20140111019A1 (en) * 2012-10-19 2014-04-24 Witricity Corporation Foreign object detection in wireless energy transfer systems
DE102014205598A1 (de) * 2014-03-26 2015-10-01 Robert Bosch Gmbh Überwachungsvorrichtung für mindestens eine zur induktiven Energieübertragung ausgelegte elektrische Vorrichtung und Verfahren zum Überwachen zumindest einer Teilumgebung mindestens einer zur induktiven Energieübertragung ausgelegten elektrischen Vorrichtung

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111655533A (zh) * 2018-02-06 2020-09-11 罗伯特·博世有限公司 感应式充电装置和用于监控感应式充电装置的方法
CN111655533B (zh) * 2018-02-06 2023-12-01 罗伯特·博世有限公司 感应式充电装置和用于监控感应式充电装置的方法

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Publication number Publication date
TW201729511A (zh) 2017-08-16
DE102015224013A1 (de) 2017-06-08

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