WO2021094618A1 - Procédé et système de charge de batterie de véhicule électrique - Google Patents

Procédé et système de charge de batterie de véhicule électrique Download PDF

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Publication number
WO2021094618A1
WO2021094618A1 PCT/EP2020/082287 EP2020082287W WO2021094618A1 WO 2021094618 A1 WO2021094618 A1 WO 2021094618A1 EP 2020082287 W EP2020082287 W EP 2020082287W WO 2021094618 A1 WO2021094618 A1 WO 2021094618A1
Authority
WO
WIPO (PCT)
Prior art keywords
unit
vehicle
charging
sensor
floor
Prior art date
Application number
PCT/EP2020/082287
Other languages
German (de)
English (en)
Inventor
Philipp Eck
Frank Tilgner
Stephan PÜHLER
Original Assignee
Webasto SE
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 Webasto SE filed Critical Webasto SE
Publication of WO2021094618A1 publication Critical patent/WO2021094618A1/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
    • 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
    • B60L53/14—Conductive 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
    • B60L53/30—Constructional details of charging stations
    • B60L53/305—Communication interfaces
    • 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

Definitions

  • the present invention relates to a method and a system for charging a battery of an electric vehicle, as well as a corresponding vehicle unit for charging a battery of an electric vehicle and a corresponding floor unit for charging a battery of an electric vehicle.
  • Electric vehicles are becoming more and more popular because they are considered an environmentally friendly alternative to vehicles with an internal combustion engine and at the same time contribute to reducing the CO2 emissions of the respective vehicle fleets.
  • Motor vehicles with an electric drive are known, for example, as vehicles with a purely electric drive, in which the energy required for the ferry operation is stored exclusively in a traction battery. Furthermore, motor vehicles with an electric drive are known which have both an internal combustion engine and an electric motor for driving purposes. These motor vehicles are also referred to as hybrid vehicles. In hybrid vehicles, the energy required to drive the electric motor is also stored in a traction battery. If this traction battery can be charged externally, for example by connection to a charging device connected to the general power supply, these motor vehicles are referred to as plug-in hybrid vehicles.
  • a charging device for example a wallbox
  • a charging cable from the wallbox to the motor vehicle in order to be plugged into a corresponding socket there.
  • a secure connection between the wallbox and the motor vehicle can be established in such a way that charging is easy.
  • Providing such a wallbox in combination with a cable does not save much space, since the charging cable extends from the wallbox, which can be provided in a wall area, for example in a garage, to the motor vehicle and in this way blocks the passage or at least a dangerous spot or create tripping hazards.
  • contacting devices which are arranged on the floor of a parking space. With these contacting devices, a motor vehicle drives over the respective loading device or floor unit and then the motor vehicle is automatically contacted from below via a corresponding lifting device.
  • different lifting devices are known, by means of which a plug can be inserted from below into a socket which is arranged in the underbody of the motor vehicle.
  • DE102018205594A1 discloses an automatic charging device for an electric vehicle, wherein a contacting unit arranged in the underbody of the vehicle can be contacted by means of a movable arm.
  • the contacts of the contacting unit are protected with a linearly displaceable cover.
  • the contact is made in a plane perpendicular to the underbody of the electric vehicle. It is mandatory for such charging devices It is necessary that the vehicle unit with the charging contact is correctly positioned in relation to the floor unit, since otherwise a coupling of the contacting element of the floor unit and the charging connection of the vehicle unit is not possible.
  • methods are known by means of which an electric vehicle can be positioned in relation to a charging station located in the ground. Such a method can be found in EP 3552861 A1, for example.
  • a method for charging a battery of an electric vehicle comprising the provision of a vehicle unit mounted in the underbody of the electric vehicle with a charging connection, the provision of a floor unit with a contacting arm, at the free end of which a contacting element is arranged which is connected to the charging connection of the vehicle unit Establishing an electrical connection can be connected, and moving the contacting arm in such a way that the contacting element is brought closer to the charging connection.
  • the method is characterized in that the contacting arm is moved by means of control commands which are essentially based on sensor data from a sensor unit on the vehicle unit for determining the position of the floor unit relative to the vehicle unit.
  • the contact arm is moved by means of control commands, which are essentially based on sensor data from a sensor unit on the vehicle unit for determining the position of the floor unit relative to the vehicle unit, means that it is no longer necessary for the vehicle unit to be in a fixed, predefined Position must be spent before a successful connection between the charging port and contacting element is possible.
  • the vehicle unit can recognize where the contacting arm and in particular the contacting element are located relative to the charging connection. Accordingly, the movements of the contacting arm or the contacting element can be based on the Vehicle unit or the charging port can be controlled as a reference point. This allows a precise control or approach of the contacting element to the charging connection, even without the vehicle unit being positioned in an otherwise required fixed, predetermined position relative to the floor unit.
  • the floor unit can be constructed more simply, since it does not require any sensors to recognize the vehicle unit or the position of the charging connection.
  • a sensor system which would otherwise be necessary, would have to be designed with a correspondingly high resolution, since the vehicle unit is usually integrated into the underbody of the electric vehicle, so that the vehicle unit can only be recognized without errors using complex and high-resolution sensors.
  • the present solution also reduces the effort required to determine a position of the vehicle unit relative to the floor unit and, in particular, relative to the contacting element, compared to conventional methods.
  • a “floor unit” is understood to mean, in particular, a unit fixed in place on the floor.
  • the floor unit is fastened or placed on the floor in a fixed position.
  • the sensor unit determines the position, preferably the position and the orientation, of the contacting element relative to the charging connection, preferably continuously or cyclically, using the sensor data while the contacting arm is being moved, with the control commands preferably being based on the position determined via the control data and / or Orientation of the contacting element based on the charging connection. It can thereby be ensured that the position of the contacting element and preferably also its alignment is always known or can be precisely determined.
  • the control commands are generated in the vehicle unit and then transmitted to the ground station.
  • the floor unit can be constructed in a particularly simple manner, since it does not require a device for generating the control commands based on the sensor data.
  • this can lead to the risk of incorrect movements of the contacting arm, which are due to incorrectly generated control commands based, reduced or even completely reduced, since both the generation of the sensor data and the generation of the control commands are based on the sensor data in the vehicle unit.
  • This can prevent the sensor data from being incorrectly interpreted and / or translated by a conversion system of the ground unit which is external to the vehicle unit and which converts the sensor data into control commands.
  • the sensor data are transmitted to the ground station and the control commands are generated in the ground unit based on the received sensor data. This can enable advantages with regard to the movement control of the contacting arm.
  • a wireless communication link can be set up between a communication unit of the vehicle unit and a communication unit of the ground unit.
  • the wireless communication connection is established when the sensor unit determines or after the sensor unit has determined that the position of the vehicle unit is arranged within a loading zone relative to the floor unit.
  • the control commands are preferably output when the sensor unit determines that the position of the vehicle unit is arranged within the loading zone relative to the floor unit.
  • the communication connection is preferably based on WLAN, WiFi, Bluetooth, ZigBee, or NFC.
  • the sensor unit uses a radiation-based measurement method, preferably a measurement method based on electromagnetic radiation or electromagnetic waves, such as, for example, a measurement method based on radar or lidar.
  • a measurement method based on ultrasound or other acoustic waves can also be used as the measuring method.
  • the measurement method can also be based on a distance or position measurement resulting from the respective wireless communication standard, for example triangulation or multilateration on the basis of different transmitting and / or receiving units, in which position determination is made possible via known propagation patterns of the respective waves of the communication standard.
  • the sensor unit can use an optical measurement method, with at least one position marker preferably being arranged on the ground station, which can make it easier to determine the position of the ground station.
  • the optical measurement method can, for example, be based on an evaluation of a camera signal or other imaging methods.
  • the sensor unit can additionally or alternatively also use a magnetic field-based measurement method, which is preferably based on the Hall effect and / or induction.
  • a combination of the aforementioned measurement methods can optionally be advantageous.
  • a first measurement method preferably in the form of a measurement method based on radiation, preferably electromagnetic radiation or electromagnetic waves, particularly preferably radar, can be used for roughly moving the contacting arm and the contacting element into the immediate vicinity of the charging connection, and for the precise Approaching the contacting element to the vehicle unit and in particular the charging connection, a second measurement method, for example based on a Hall sensor, can be used as an alternative or in addition to the first method.
  • a relatively simple and quick positioning of the contacting element can be moved from a rest position, in which the contacting arm is in a non-failed state, into an approach position in the immediate vicinity of the vehicle unit, and then the contacting element can be precisely brought closer to the vehicle unit and in particular to the charging port.
  • a vehicle unit for charging a battery of an electric vehicle comprising a charging connection for charging the battery and a communication unit for communicating with a communication unit of a ground station providing charging energy.
  • the vehicle unit is characterized in that a sensor unit is provided for determining the position of the floor unit relative to the vehicle unit, and the vehicle unit is set up to use the communication unit to transmit sensor data and / or control commands determined by the sensor unit, which are based on the sensor data of the sensor unit to communicate with the ground unit.
  • the vehicle unit is set up to communicate sensor data and / or control commands determined by the sensor unit, which are based on the sensor data of the sensor unit, to the ground unit by means of the communication unit, the advantages and effects described with regard to the method can also be carried out in an analogous manner the vehicle unit can be achieved.
  • the vehicle unit is preferably arranged in the underbody of the electric vehicle.
  • the sensor unit is set up to determine a position and an orientation of a contacting element of the ground station relative to the charging connection, preferably to determine it continuously or cyclically.
  • the vehicle unit has a control unit which is set up to generate the control commands based on the sensor data corresponding to the position of the ground unit relative to the vehicle unit, preferably the position and the orientation of the contacting element, relative to the charging connection.
  • the communication unit is designed to form a wireless communication link to a communication unit of the ground unit, the wireless communication link preferably being formed if the vehicle unit is recognized as being positioned within a loading zone relative to the ground unit according to the sensor data.
  • the communication unit can be designed to set up the communication connection after it has been determined, for example by the sensor unit, that the position of the vehicle unit is arranged within a loading zone relative to the ground unit.
  • the communication unit of the vehicle unit preferably sends a corresponding request to the communication unit of the ground unit.
  • the control unit is preferably designed to generate and / or output the control commands if the vehicle unit positioned as a vehicle unit within a loading zone relative to the floor unit is recognized in accordance with the sensor data.
  • the communication connection is preferably based on WLAN, WFi, Bluetooth, ZigBee, or NFC.
  • the sensor unit is designed to use a radiation-based measurement method, preferably a measurement method based on electromagnetic radiation or electromagnetic waves, preferably based on radar or Lidar.
  • the sensor unit can also use an acoustic measurement method, for example based on ultrasound or another acoustic wave.
  • the sensor unit is designed to use an optical measurement method, with at least one position marker arranged at the ground station preferably being recognizable by means of the optical measurement method.
  • the sensor unit can additionally or alternatively be designed to use a magnetic field-based measurement method, preferably based on the Hall effect and / or induction.
  • a floor unit for charging a battery of an electric vehicle comprising a contacting element attached to a movable contacting arm and a communication unit for communicating with a communication unit of a vehicle unit, the contacting element being connectable to a charging connection of the vehicle unit to establish an electrical connection.
  • the floor unit is characterized in that a control device is provided for moving the contacting arm, the control device being set up to control the contacting arm by means of control commands based on sensor data from a vehicle unit-side sensor unit for determining the position of the floor unit relative to the vehicle unit.
  • control device for moving the contacting arm, the control device being set up to control the contacting arm by means of control commands which are based on sensor data from a vehicle unit-side sensor unit for determining the position of the ground unit relative to the vehicle unit, the method and the Vehicle unit described advantages and effects can be achieved in an analogous manner by the floor unit.
  • control device is set up to control the contacting arm and / or the contacting element by means of control commands received via the communication unit and generated in the vehicle unit.
  • control device is set up to generate the control commands based on sensor data received from the vehicle unit via the communication unit.
  • the communication unit is designed to form a wireless communication connection to a communication unit of the vehicle unit, the communication connection preferably being based on WLAN, WiFi, Bluetooth, ZigBee, or NFC.
  • a system for charging a battery of an electric vehicle comprising a ground station according to one of the preceding embodiments and a vehicle unit according to one of the preceding embodiments.
  • the system is therefore set up to carry out the method according to one of the preceding embodiments.
  • the vehicle unit and the ground unit can be achieved in an analogous manner by the system.
  • FIG. 1 schematically shows a system for charging a battery of an electric vehicle
  • FIG. 2 schematically shows a side view of a further system for charging a battery of an electric vehicle
  • FIG. 3 schematically shows a further side view of the system from FIG. 2;
  • FIG. 4 schematically shows a plan view of a parking lot with a plurality of parking spaces with a floor unit, on each of which an electric vehicle having a vehicle unit is parked.
  • a system 4 for charging a battery of an electric vehicle is shown schematically in FIG.
  • the system 4 comprises a ground station 3, which is to be permanently attached to the floor of a parking space, and a vehicle unit 1, which is to be integrated into the underbody of an electric vehicle.
  • the vehicle unit 1 comprises a charging connection, not shown here, for charging the battery of the electric vehicle, a sensor unit 10 for determining the position of the floor unit 3 relative to the vehicle unit 1, and a control unit 13, which is set up to be based on or determined by means of the sensor unit 10. generated sensor data to generate control commands for controlling the movement of a contacting arm, not shown here, of the floor unit 3.
  • the vehicle unit 1 further comprises a communication unit 12, which is set up to set up a wireless communication link 8 with a communication unit 33.
  • the floor unit 3 comprises a control device 32 for controlling the contacting arm of the floor unit, the control device 32 being set up to control the contacting arm based on the control commands received from the vehicle unit 1 by means of the communication unit 33.
  • the vehicle unit 1 can be set up to transmit the sensor data to the ground unit 3 using the communication unit 12, the control device 32 of the ground unit 3 then being set up to generate the control commands using the sensor data received from the vehicle unit 1 via the communication unit 33 and using the control commands to control the contact arm.
  • FIG. 2 schematically shows a further embodiment of a system 4 for charging the battery of an electric vehicle 2.
  • the vehicle unit 1 is integrated in an underbody 2 of an electric vehicle 2.
  • the electric vehicle 2 is located on a parking space 5, on the floor 50 of which a floor unit 3 is attached.
  • the sensor 10 of the vehicle unit 1 has a measuring range 101, within which it is possible for the sensor 10 to detect the floor unit 3.
  • the sensor 10 is designed as a radar sensor.
  • the sensor can also use a different measuring method than a radar-based one, for example lidar or ultrasound, an optical measuring method and / or a magnetic field-based measuring method.
  • the floor unit 3 has a charging zone 34 within or above which the vehicle unit 1 or its charging connection 11 must be arranged so that a contacting element, not shown here, of the floor unit 3 can be brought into engagement with the charging connection 11 for transmitting electrical current .
  • FIG. 3 shows the system 4 from FIG. 2, the contacting arm 30 of the floor unit 3 being shown in an extended state in which the contacting element 31 of the floor unit 3 is positioned in the immediate vicinity, but still at a distance from the charging connection 11.
  • the position of the floor unit 3 relative to the vehicle unit 1 is determined by means of the sensor unit 10.
  • the sensor data generated by the sensor unit 10 are transferred to the control unit 13 (see FIG. 1) for evaluation.
  • the start of the position determination by means of the sensor unit 10 can be triggered automatically or based on a manual input command. Alternatively, the position can be determined continuously by the sensor unit 10.
  • the vehicle unit 1 can be connected to a vehicle controller of the electric vehicle 2 and can be supplied with GPS data by the vehicle controller. If the GPS position of the electric vehicle 2 lies in a certain, predetermined range, the control unit 13 can activate the sensor unit 10.
  • the communication unit 12 sends a request to establish a wireless communication link 8 with the Communication unit 33.
  • the wireless communication link is a Bluetooth Communication link.
  • other communication connections for example WiFi, ZigBee, NFC or another communication connection, preferably a so-called wireless “low power” communication connection, can also be used.
  • the wireless communication link 8 can also be used to log on to a specific station, to recognize operating states, or also to exchange positions, for example based on a triangulation or multilateration method, preferably including several WiFi transmitters or WiFi transceivers.
  • the specified area can be designed in such a way that the entry of the vehicle unit 1 into the specified area is indicative of a parking process of the electric vehicle 2 in the parking space 5 having the floor unit 3.
  • the wireless communication link 8 can also begin before the start of the parking process, in particular if you want to log on to a station and / or exchange positions.
  • the vehicle unit 1 After the wireless communication link 8 (see Figure 1) has been established, the vehicle unit 1 sends an initial command to extend the contact arm 30 to the floor unit 3. As soon as the sensor unit 10 detects the contact element 31 of the floor unit 3, the control commands generated in the control unit 13 are based generated on the position of the contacting element 31 relative to the charging connection 11. Based on the control commands, the control device 32 of the floor unit 3 controls the movements of the contacting arm 30 so that the contacting element 31 is brought closer to the charging connection 11 until the charging connection 11 and the contacting element 31 enter into mechanical engagement with each other and a charging current from the floor unit 3 via the Contacting element 31 can be transferred to the charging connection. Since the charging connection 11 is connected to the battery of the electric vehicle 2, the battery of the electric vehicle 2 can be charged in this way.
  • the battery can also be charged inductively, in which the contacting element 31 and the charging connection 11 have induction coils, the contacting element generating a magnetic field which generates a current flow in the induction coil of the charging connection 11, which in turn is used to charge the battery can.
  • FIG. 4 shows a parking lot with a plurality of parking spaces 5, 5 ′, 5 ′′, each of which has a floor unit 3.
  • Reference numeral 35 indicates a connection cable from the floor units 3 to a wallbox, not shown here, which provides the floor units 3 with the charging current.
  • the respective loading zone is indicated for each of the parking spaces 5, 5 ′, 5 ′′ by means of the reference number 34.
  • the electric vehicle 2 located in the parking space 5 corresponds in type to the electric vehicle 2 'which is parked in the parking space 5'.
  • the electric vehicle 2 ′′ is a vehicle type different from the type of the electric vehicle 2 and 2 '.
  • the vehicle 2 ' is parked in relation to a longitudinal direction of the parking space 5' or the floor unit 3 at an angle 21 in relation to the direction of gravity as the axis of rotation. Accordingly, the vehicle unit 1 of the vehicle 2 ′ is also aligned with the angle 21 with respect to the floor unit 3. Due to the prescribed system 4, the exact alignment of the vehicle 2, 2 ', 2 ′′ and thus the exact alignment of the vehicle unit 1 with respect to the floor unit 3 is not critical, since the approach of the contacting element 31 (see FIG. 3) to the vehicle unit 1 and in particular the charging connection 11 thereof based on the sensor data of the sensor unit 10.
  • the reference point of the reference system which controls the movement of the contacting arm 30 and consequently of the contacting element 31, is therefore on the vehicle unit side. Accordingly, the vehicle unit 1 only needs to be positioned in or on the charging zone 34 in order to make contact with the charging connection 11 through the

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

Abstract

L'invention concerne un procédé de charge d'une batterie d'un véhicule électrique (2), consistant : à obtenir une unité de véhicule (1) pourvue d'un raccord de charge (11), dans le plancher de sol (20) du véhicule électrique (2) ; à obtenir une unité de mise à la terre (3) comprenant un bras de contact (30) pourvu à son extrémité libre d'un élément de contact (31) pouvant être relié à la borne de charge (11) de l'unité de véhicule (1) afin de produire une connexion électrique ; à déplacer le bras de contact (30) de sorte que l'élément de contact (31) soit avancé en direction du raccord de charge (11), le bras de contact (30) étant déplacé au moyen d'instructions de commande en fonction de données de capteur d'une unité de capteur (10) intégrée au véhicule et conçue pour déterminer la position de l'unité de mise à la terre (3) par rapport à l'unité de véhicule (1). L'invention concerne également un système correspondant (4), une unité de véhicule (1) et une unité de mise à la terre (3) pour charger la batterie d'un véhicule électrique (2).
PCT/EP2020/082287 2019-11-14 2020-11-16 Procédé et système de charge de batterie de véhicule électrique WO2021094618A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102019130820.8A DE102019130820A1 (de) 2019-11-14 2019-11-14 Verfahren und ein System zum Laden einer Batterie eines Elektrofahrzeugs
DE102019130820.8 2019-11-14

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WO2021094618A1 true WO2021094618A1 (fr) 2021-05-20

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WO (1) WO2021094618A1 (fr)

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