WO2019192995A1 - Dispositif de positionnement d'un véhicule automobile sur un emplacement pour une charge inductive - Google Patents

Dispositif de positionnement d'un véhicule automobile sur un emplacement pour une charge inductive Download PDF

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Publication number
WO2019192995A1
WO2019192995A1 PCT/EP2019/058263 EP2019058263W WO2019192995A1 WO 2019192995 A1 WO2019192995 A1 WO 2019192995A1 EP 2019058263 W EP2019058263 W EP 2019058263W WO 2019192995 A1 WO2019192995 A1 WO 2019192995A1
Authority
WO
WIPO (PCT)
Prior art keywords
motor vehicle
parking space
primary coil
line
pilot signal
Prior art date
Application number
PCT/EP2019/058263
Other languages
German (de)
English (en)
Inventor
Janos Radeczky
Original Assignee
Cpt Group 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 Cpt Group Gmbh filed Critical Cpt Group Gmbh
Publication of WO2019192995A1 publication Critical patent/WO2019192995A1/fr

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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
    • B60L53/38—Means for automatic or assisted adjustment of the relative position of charging devices and vehicles specially adapted for charging by inductive energy transfer
    • B60L53/39—Means for automatic or assisted adjustment of the relative position of charging devices and vehicles specially adapted for charging by inductive energy transfer with position-responsive activation of primary 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
    • B60L53/122—Circuits or methods for driving the primary coil, e.g. supplying electric power to the coil
    • 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
    • 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
    • B60L53/305—Communication interfaces
    • 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
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/60—Monitoring or controlling charging stations
    • B60L53/64—Optimising energy costs, e.g. responding to electricity rates
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/60—Monitoring or controlling charging stations
    • B60L53/66—Data transfer between charging stations and vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/60—Monitoring or controlling charging stations
    • B60L53/67—Controlling two or more charging stations
    • 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
    • B60L2250/00—Driver interactions
    • B60L2250/10—Driver interactions by alarm
    • 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
    • B60L2260/00—Operating Modes
    • B60L2260/20—Drive modes; Transition between modes
    • B60L2260/32—Auto pilot mode
    • 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
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10—Technologies relating to charging of electric vehicles
    • Y02T90/12—Electric charging stations
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10—Technologies relating to charging of electric vehicles
    • Y02T90/14—Plug-in electric vehicles
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10—Technologies relating to charging of electric vehicles
    • Y02T90/16—Information or communication technologies improving the operation of electric vehicles
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10—Technologies relating to charging of electric vehicles
    • Y02T90/16—Information or communication technologies improving the operation of electric vehicles
    • Y02T90/167—Systems integrating technologies related to power network operation and communication or information technologies for supporting the interoperability of electric or hybrid vehicles, i.e. smartgrids as interface for battery charging of electric vehicles [EV] or hybrid vehicles [HEV]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S30/00—Systems supporting specific end-user applications in the sector of transportation
    • Y04S30/10—Systems supporting the interoperability of electric or hybrid vehicles
    • Y04S30/14—Details associated with the interoperability, e.g. vehicle recognition, authentication, identification or billing

Definitions

  • the invention relates to a device for positioning a motor vehicle on a parking space for an inductive charging a battery of the motor vehicle.
  • inductive charging energy is transferred by means of the transformer principle over distances of a few centimeters to about 20 cm.
  • a large magnetic field can arise between an outer bottom coil (so-called primary coil) and a vehicle-side underbody coil (so-called secondary coil).
  • EMC stray magnetic field
  • the efficiency of the transmission system deteriorates.
  • the efficiency in a wireless power transmission depends on the horizontal distance of the outer bottom coil and the vehicle-side underbody coil.
  • the coils should therefore be aligned as well as possible to a few cm to each other. If this is not possible up to a minimum allowed efficiency, loading should not be started at all or not continue if the incorrect alignment occurs during loading.
  • Fine positioning is carried out. This is expediently carried out by the motor vehicle. This happens, for example, in conjunction with the Pri märspule in which both, motor vehicle and charging station, a so-called. Alignment signal exchange. This determines whether the two coils are aligned well over each other. If the alignment signal from one coil to the other is too weak or not at all, it can be assumed that the coil alignment is bad and the charging process will not be successful started or even canceled. The temporally upstream alignment test before switching on the magnetic field thus serves to check the functionality of the charging system.
  • a device for positioning a motor vehicle on a parking space for inductive charging of a battery of the motor vehicle comprises at least one charging station.
  • the device comprises at least one parking space, wherein each parking space is configured with a primary coil to inductively transmit energy to a secondary coil of the motor vehicle when the motor vehicle is on the parking space and the primary coil and the secondary coil have a predetermined location relationship to each other.
  • the device further comprises a line arrangement with a number of lines, wherein a respective line is laid in the access area of the motor vehicle in the ground and leads from the at least one charging station to the primary coil of its associated parking space.
  • the device comprises a calculating unit, which is adapted to a selected line of the number of lines leading to the selected parking space leads to act on a Lotsensignal whose Mag netfeld received by the motor vehicle and can be evaluated for positioning of the motor vehicle on the selected parking space, such that the predetermined location relationship is met.
  • the proposed device allows precise posi tioning of a vehicle over a primary coil of a
  • the pilot signal transmitted via the selected line for the duration of the positioning of the motor vehicle on the parking space makes it possible to determine the relative position of the vehicle to the line acted upon by the pilot signal.
  • the determination of the relative position is carried out by a computing unit in the vehicle. Based on the information about the relative positionratisstraj ektorien he be averaged to bring the vehicle in the predetermined location relationship, so that the primary coil of the parking space and the secondary coil of the motor vehicle, the efficiency required for a high loading relative position to each other have.
  • the determinednesssstraj ektorie can optionally be used by an autonomous driving function of the motor vehicle or converted into driving recommendations that support a driver to achieve the determinedillagesstraj ektorie by appropriate steering movements. The positioning is thereby made comfortable for the driver of the motor vehicle, so that it is not necessary to repeatedly move the motor vehicle back and forth in order to achieve the predetermined location relationship for the charging process.
  • a further advantage is that in the case of a device which has a plurality of parking spaces, the so-called "pairing" can also be secured.
  • Pairing means in this case the correct assignment of a specific vehicle to a particular vehicle. agreed primary coil (a specific slot for loading) understood. This information is required on the one hand for safety reasons, for example, to activate no primary coil on which there is no motor vehicle to be charged. On the other hand, this is also necessary for the correct allocation of the charging process and / or for billing.
  • An expedient embodiment provides that a respective line of the line arrangement in a previously known manner, in particular special centered on the assigned primary coil.
  • the evaluation of the pilot signal and the making of correction movements of the motor vehicle can be simplified.
  • the evaluation of the Lotsensignals can for example take place in that the motor vehicle is equipped with a number of antennas, which is a deviation from the determinedndelsstraj ektorie in the direction of travel (x-direction) and in the vehicle transverse direction (y-direction, respectively from the perspective of a driver in the direction of travel ) evaluates.
  • Such an antenna arrangement can be used e.g. have two, three or four antennas.
  • an antenna may be provided on the left side and an antenna on the right side of the vehicle, whereby it is possible to detect deviations of the actual movement pattern of the vehicle from the determined movement law in the vehicle transverse direction.
  • An additional antenna which is placed centrally, preferably in the front region of the vehicle, makes it possible to detect a deviation in the x direction after passing over the primary coil. The more antennas the motor vehicle for evaluating the magnetic field of the pilot signal comprises, the more precise can be made Be wegungstraj ektorie the vehicle for achieving the given location relationship before.
  • a further expedient embodiment provides that a respective line of the line arrangement is arranged centrally under a roadway to the respective parking space.
  • pilot signal comprises current pulses which occur in predetermined time intervals. distances are generated.
  • the current pulses generate the Mag netfeld, which can be evaluated by a receiving arrangement of the motor vehicle to determine the relative relationship of the motor vehicle to the Lotsensignal emitting line.
  • the computing unit of the device can be, for example, a part of the charging station.
  • the charging station serves to supply the number of primary coils with current for charging the batteries of the motor vehicle (or motor vehicles). Ande hand can be taken over by the charging station more functions, in particular a communication regarding the current and the like.
  • the Re chentician may be configured to generate the pilot signal until the predetermined position of the motor vehicle relative to the primary coil of the parking space on which the motor vehicle is located reached.
  • the arithmetic unit may further be configured to activate the pilot signal after the approach of the
  • a registration process is done.
  • Such a registration process for example, the exchange from the so-called.
  • Z-class include, which comprises a distance between the secondary coil of the vehicle and the primary coil of the front direction. If the device comprises a plurality of parking spaces for loading the vehicle, then these may be provided for example for certain Z classes.
  • the parking space suitable for the motor vehicle to be loaded can then be selected and the line belonging to the parking space or the primary coil can be loaded with the pilot signal. In this way it is also ensured that the motor vehicle to be loaded is piloted to the correct parking space.
  • a further expedient embodiment provides that the device further comprises a wireless communication unit for Exchanging messages relating to a planned charging process with a motor vehicle communication unit.
  • the number of lines of the line arrangement comprises high-voltage charging cable, via which the pilot signal is transmitted.
  • the pilot signal is transmitted.
  • the märspule already provided between the charging station and the respectively associated Pri high-voltage line is used.
  • a further expedient embodiment provides that the arithmetic unit is designed to decouple the primary coil from its associated line when the pilot signal is sent out.
  • the primary coil can be separated from the line, whereby the signals for Po tioning no magnetic field generated via the primary coil.
  • the decoupling of the primary coil from its associated line can be done for example by means of a switchable capacitor.
  • a further, alternative embodiment provides that the number of lines of the line arrangement comprises signal lines via which the pilot signal is transmitted, wherein the signal lines are provided in addition to the high-voltage charging cables. This allows the line length of the high
  • Voltage charging cables which are relatively expensive and cause increasing energy losses with increasing length, are optimized with regard to their cable length.
  • the Re chentician is adapted to a plurality of lines of the line arrangement, a charging current at least in the Lei lines, immediately adjacent to the selected line are arranged to reduce or switch off for the duration of the transmission of the pilot signal.
  • a charging current at least in the Lei lines, immediately adjacent to the selected line are arranged to reduce or switch off for the duration of the transmission of the pilot signal.
  • Fig. 1 is a schematic representation of an inventive
  • Fig. 2 is a schematic representation of the approximation of a
  • Fig. 3 shows a guide of the motor vehicle from FIG. 2 on one of the parking spaces with the aid of a pilot signal
  • Fig. 4 shows an alternative embodiment of the invention
  • the device comprises by way of example eight parking spaces 1,. these are arranged as an example in two rows of four parking spaces adjacent to each other. At the opposite ends of two adjoining on its front side parking spaces 1 and 5, 2 and 6, 3 and 7 and 4 and 8, primary coils 11 are arranged as Energybergertra supply units. The primary coils 11 are optionally embedded in the bottom of their associated parking spaces 1, ..., 8 or are as protected by a robust housing loading units on the ground of the respective parking lots 1, ..., 8.
  • HV cables high-voltage cables
  • the primary coils 11 of all parking spaces 1,..., 8 are connected to a charging station 10 via respective high-voltage cables (HV cables) 12, which constitute lines in the sense of the present invention. It is obvious that the number of Pri märspulen 11 and the number of HV cables 12 of the number of parking spaces 1, ..., 8 corresponds.
  • the number of HV cables 12 represents a line arrangement 12A in the context of the invention.
  • the charging station 10 which is also known in part as a wallbox, supplies the respective primary coils 11 with power via their associated HV cables 12 so that inductive charging of a battery of a motor vehicle can be carried out by means of the transformer principle in a manner known to those skilled in the art the primary coil 11 and a secondary coil of a motor vehicle in a given location relationship to each other be found when the motor vehicle is on the relevant parking space.
  • FIGS. 2 and 3 Such a situation is shown for example in FIGS. 2 and 3 for the parking spaces 2 and 7, on which motor vehicles 101 (on the parking space 2) and 102 (on the parking space 107) are for charging their batteries.
  • the charging station 10 which is connected to a power supply, not shown, to supply the respective primary coils 11 via their HV cable 12 with power, also has a computing unit 13 and a communication unit 14th
  • the communication unit 14 serves to exchange messages with respect to a desired / planned charging operation with a motor vehicle 100 (see FIG. 2) approaching the front of the car before parking it on one of the parking spaces 1,..., 8.
  • the arithmetic unit 13 serves to enable optimum positioning of a motor vehicle to be loaded on its assigned parking space 1, ..., 8.
  • the optimized positioning of the motor vehicle 100 is made possible by the fact that the HV cables 12 are arranged in the access area of the motor vehicle to be loaded in the ground to an associated parking space 1, ..., 8.
  • the HV cables can be routed centrally underneath the roadway, as shown schematically in FIGS. 1 to 3.
  • the HV cables are aligned so that they converge in a known manner, in particular in the center, on the associated primary coil 11.
  • signal lines can also be used.
  • the signal lines then run, for example, in the manner shown in FIGS. 1 to 3, from the charging station 10 to the primary coils 11 assigned to them in the access area.
  • the arrangement and position of the HV cable for current application of the associated coils 11 can then be done by other means, in particular with shorter line length.
  • FIGS. 2 and 3 there are two motor vehicles 101 and 102 on the parking spaces 2 and 7 in order to charge their batteries.
  • the supply of the primary coils 11 of the parking spaces 2 and 7 by the charging station 10 with a corresponding charging current is through the thicker line of the HV cable 12C compared to the other HV cables 12 of the parking spaces 1, 3, 4, 5, 6 and 8 shown.
  • the motor vehicle 100 to be charged moves along the direction of the arrow 100F towards the device according to the invention with the parking spaces.
  • the approach of the device can be predetermined for example by spatial conditions.
  • a communication takes place between the motor vehicle 100 and the charging station 10, wherein the communication is wireless with the aid of the communication unit 14 and a corresponding, not shown, communication unit of the motor vehicle 100.
  • the charge related information is exchanged.
  • the so-called. Z class of the motor vehicle 100 can be queried.
  • a direction of travel of the motor vehicle 100 can be queried on the device.
  • the arithmetic unit 13 of the charging station 10 determines on which of the free parking spaces 1, 3, 4, 5, 6, 8 the motor vehicle 100 is to be loaded.
  • the Z class defines the distance between the secondary coil (also referred to as vehicle plate) and the primary coil (also referred to as ground plate) in currently three classes ZI, Z2 and Z3.
  • the first class ZI comprises a distance between 100 mm and 150 mm, the class Z2 a distance between 140 mm and 210 mm and the class Z3 a distance between 170 mm and 250 mm.
  • the arithmetic unit 13 of the charging station 10 can assign it to a specific one of the parking spaces of the device.
  • the computing unit 13 of the charging station 10 the motor vehicle 100 to the parking space 3 for the charging process.
  • the arithmetic unit 13 is designed to apply to the primary coil 11 of the parking space 3 leading line 12 with a Lotsensignal whose magnetic field from a suitable receiving device of the motor vehicle emp catch and can be evaluated. This is shown in Fig. 3 by way of example by the dotted line 12S.
  • the motor vehicle 100 passes over the HV cable 12S subjected to the pilot signal at the instant ti (shown as 100 (ti))
  • the magnetic field generated by the pilot signal is evaluated by the motor vehicle and a relative position of the vehicle is determined
  • Motor vehicle 100 to the HV cable 12S determined. This then results in a specific movement law ectorie, in which case the motor vehicle 100 in the given location pull on the pitch comes to a halt. With the help of the Lotsensignals and the evaluation by the motor vehicle, the driver of the motor vehicle 100 assistance in orientation can be offered, for example by acoustic or visual Anwei statements are given for a steering operation. If the motor vehicle 100 has autonomous driving functions, then the motor vehicle 100, guided by the pilot signal, can be autonomously directed exactly in the center via the primary coil 11 of the parking space 3.
  • the evaluation of the signal transmitted by the pilot signal e.g. in the form of all 50 ms to 100 ms emitted current pulses generated Mag netfelds can be made for example via a number of antennas, which are distributed over the bottom of the motor vehicle 100.
  • the current pulses may e.g. be generated by charging and discharging a capacitor in the charging station 10.
  • the current in the one or more can be for the duration of the generation of the Lotsensignals in the HV cable 12S HV cables 12C are reduced or even switched off completely.
  • Fig. 4 shows an alternative embodiment variant, in which the exemplary eight parking spaces 1, ..., 8 arranged side by side are.
  • two charging stations 10-1 and 10-2 are arranged, wherein each of the charging station 10-1, 10-2 four Pri märspulen 11 is assigned. In this way, the cable lengths of the HV cables 12 can be minimized.
  • the proposed solution can be implemented without additional components in the infrastructure. By laying the HV cables in the ground, the exact positioning of one to be charged
  • the device according to the invention can be implemented everywhere where a corresponding infrastructure is present, and enables precise positioning of a vehicle, in particular if it has autonomous driving functions.
  • the device according to the invention can also be used in the private environment in which the charging station is assigned to only one single parking space. In this application, a realization without additional line lengths is possible.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)

Abstract

L'invention concerne un dispositif de positionnement d'un véhicule automobile (100… 102) sur un emplacement (1… 8) pour une charge inductive d'une batterie du véhicule automobile (100… 102). Le dispositif comprend : - au moins une station de charge (10) ; - au moins un emplacement (1… 8), chaque emplacement (1… 8) étant équipé d'une bobine primaire (11) pour transférer par induction de l'énergie sur une bobine secondaire d'un véhicule automobile (100… 102), si le véhicule automobile (100… 102) se trouve sur l'emplacement (1… 8) et la bobine primaire (11) et la bobine secondaire présentent une relation spatiale prédéfinie l'une par rapport à l'autre ; - un agencement (12A) de câbles pourvu d'un certain nombre de câbles (12), un câble (12) respectif étant enterré dans le sol dans la zone d'entrée du véhicule automobile (100… 102) et conduisant de la station ou des stations de charge (10) à la bobine primaire (11) d'un emplacement (1… 8) qui lui est associé ; - une unité de calcul (13) qui sert à alimenter un câble (12S) du nombre de câbles (12) qui conduit à un emplacement (3) sélectionné avec un signal pilote dont le champ magnétique peut être reçu et évalué par le véhicule automobile (100… 102) pour un positionnement du véhicule automobile (100… 102) sur l'emplacement (3) sélectionné de telle sorte que la relation spatiale prédéfinie soit satisfaite.
PCT/EP2019/058263 2018-04-03 2019-04-02 Dispositif de positionnement d'un véhicule automobile sur un emplacement pour une charge inductive WO2019192995A1 (fr)

Applications Claiming Priority (2)

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DE102018204986.6A DE102018204986B3 (de) 2018-04-03 2018-04-03 Vorrichtung zur Positionierung eines Kraftfahrzeugs auf einem Stellplatz für induktives Laden
DE102018204986.6 2018-04-03

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FR3125479B1 (fr) * 2021-07-21 2023-06-30 Nexans Système de recharge sans fil de batteries électriques de véhicules automobiles apte à équiper une aire de stationnement
CN114537169A (zh) * 2022-03-28 2022-05-27 华人运通(山东)科技有限公司 大功率无线充电机及其车载端供电电路和控制方法
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WO2011045883A1 (fr) * 2009-10-13 2011-04-21 Three Eye Co., Ltd. Système de charge inductive alimenté par la route pour véhicule électrique
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