EP4013638A1 - Unité de véhicule comprenant un raccord de charge et dispositif de charge pour charger une batterie d'un véhicule électrique - Google Patents

Unité de véhicule comprenant un raccord de charge et dispositif de charge pour charger une batterie d'un véhicule électrique

Info

Publication number
EP4013638A1
EP4013638A1 EP20758161.2A EP20758161A EP4013638A1 EP 4013638 A1 EP4013638 A1 EP 4013638A1 EP 20758161 A EP20758161 A EP 20758161A EP 4013638 A1 EP4013638 A1 EP 4013638A1
Authority
EP
European Patent Office
Prior art keywords
vehicle
vehicle unit
charging
unit
contacting
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
EP20758161.2A
Other languages
German (de)
English (en)
Inventor
Thomas Podolski
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Webasto SE
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 EP4013638A1 publication Critical patent/EP4013638A1/fr
Pending legal-status Critical Current

Links

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
    • B60L53/30—Constructional details of 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
    • 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
    • B60L53/10—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
    • B60L53/16—Connectors, e.g. plugs or sockets, specially adapted for charging electric 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
    • B60L53/30—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
    • B60L53/37—Means for automatic or assisted adjustment of the relative position of charging devices and vehicles using optical position determination, e.g. using cameras
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/44—Means for preventing access to live contacts
    • H01R13/447—Shutter or cover plate
    • H01R13/453—Shutter or cover plate opened by engagement of counterpart
    • H01R13/4534—Laterally sliding shutter
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R2201/00—Connectors or connections adapted for particular applications
    • H01R2201/26—Connectors or connections adapted for particular applications for vehicles
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10—Technologies relating to charging of electric vehicles
    • Y02T90/12—Electric charging stations
    • 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

  • Vehicle unit with a charging connection and charging device for charging a battery of an electric vehicle
  • the present invention relates to a charging device for charging a battery of an electric vehicle, in particular for charging a traction battery of a motor vehicle driven by an electric motor, for example a vehicle driven exclusively by an electric motor or a plug-in hybrid vehicle, in particular for automatically charging this traction battery.
  • Electric vehicles are becoming more and more popular, as 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 connecting it to a charging device connected to the general electricity network, then these motor vehicles are referred to as plug-in hybrid vehicles.
  • a charging device for example a wall box
  • 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 trip hazard can train. Furthermore, the manual process of plugging the charging cable into the motor vehicle is perceived by some users as a nuisance. This can lead to the fact that the connection of the motor vehicle for charging is forgotten or it is even forgotten that the motor vehicle is still connected to the wallbox with the charging cable before driving off. Although the starting locks usually prevent mechanical damage, the user still has to get out of the motor vehicle again and detach the charging cable from the vehicle.
  • contacting devices which are arranged on the floor of a parking space. With these contacting devices, a motor vehicle drives over the respective charging device 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.
  • DE102016222853A1 discloses a coupling device which is arranged on the underbody of the electric vehicle and has a plug that can be moved from a rest position to a plugged position and back.
  • a vehicle unit with a charging connection for charging a battery of an electric vehicle wherein the vehicle unit is arranged in the underbody of the electric vehicle.
  • the charging connection is designed to be connected to a contacting element in a plane parallel to the underbody of the electric vehicle.
  • a movement takes place between the contacting element and the charging connection in a plane parallel to the underbody of the electric vehicle in such a way that contacting takes place between the contacting element and the charging connection.
  • This connection of the charging connection in a plane parallel to the underbody of the electric vehicle can ensure that the respective connections and contacts for contacting between the contacting element and the charging connection can also be provided in an orientation parallel to the underbody of the electric vehicle. In this way, the tendency towards soiling, wear and tear and damage caused by driving influences can be reduced and the vehicle unit is thus made more robust.
  • the plane parallel to the underbody of the electric vehicle is also designed horizontally at the same time.
  • the plane formed by the underbody of the electric vehicle can be accommodated by parts of a housing of the vehicle unit.
  • the floor of the vehicle unit can extend essentially in the plane formed by the underbody of the electric vehicle.
  • the electric vehicle is preferably a motor vehicle with a purely electric drive or a plug-in hybrid vehicle in which the energy required for the electric ferry operation is stored in a battery of the electric vehicle, also known as a traction battery.
  • the vehicle unit can have a positioning element for positioning and / or guiding the contacting element to the charging connection.
  • the positioning element can correspondingly be brought into contact with the contacting element and then establishing or releasing contact by a corresponding movement of the positioning element.
  • the positioning element can comprise a pin or be formed by a pin which can be brought into contact with the contacting element. Further mechanical configurations for the positioning element are conceivable, which can preferably be brought into positive engagement with the contacting element.
  • the positioning element can comprise a drive, by means of which the positioning element is brought into engaging contact with the contacting element in order to then bring the contacting element into connection with the charging connection.
  • the vehicle unit preferably has a cover for covering the charging connection, the cover preferably being flush with the underbody in the closed state. This enables even better protection for the charging connection to be achieved, by means of which a robust and durable vehicle unit can then be built.
  • the cover can particularly preferably be movable between a closed position and an open position with a drive and the drive can preferably also actuate the positioning element.
  • the vehicle unit can comprise a housing defining a recess, which preferably comprises an elongated recess, and the charging connection can be arranged at a first end of the recess such that the contacts of the charging connection run parallel to the underbody.
  • the charging connection can be arranged in a recess in the vehicle unit in order to provide a particularly protected design of the vehicle unit in this way.
  • the positioning element for positioning and / or guiding the contacting element is arranged at the second end of the recess, opposite the charging connection. This enables the contacting element to be fed precisely to the charging connection.
  • the positioning element is arranged in a stationary manner in the vehicle unit, preferably in the recess, and the charging connection can be moved relative to the housing of the vehicle unit by means of a drive so that the charging connection can be moved towards a contacting element.
  • the movement of the charging connection takes place in the plane parallel to the underbody of the electric vehicle.
  • both the positioning element and the charging connection can be moved in such a way that the charging connection with a contacting element can be moved in a plane formed by the underbody of the motor vehicle and thereby contacted.
  • the positioning element is connected to a drive for opening and / or closing a cover of the recess via a toggle lever arrangement.
  • a toggle lever arrangement By means of the toggle lever arrangement, it can be achieved that the positioning element describes a preferred trajectory by means of which it can be used for moving and locking the contacting element.
  • the positioning element can be moved in the direction of the charging connection in order to effect a coupling of the contacting element to the charging connection.
  • the positioning element can move the contacting element into the charging connection.
  • a drive for the cover has over-center kinematics, with which the cover can be firmly closed in the closed state. It can thus be achieved that the cover can be held in the closed state with the application of a low holding force of the drive with a high closing force.
  • a drive for the cover is particularly preferably coupled to a drive for the positioning element, preferably in the form of a pin, so that when the cover is opened, the positioning element is rotated towards the bottom and when the cover is closed, the positioning element is rotated back into the recess, wherein the positioning element is preferably rotated through an angle which is greater than 30 °, preferably more than 45 °. It can thus be achieved that the positioning element protrudes from the recess and can thus be used for guiding and positioning the contacting element. At the same time, however, a compact structural dimension can also be achieved and the cover can be designed flush with the sub-floor.
  • a charging device for charging a battery of an electric vehicle which comprises a vehicle unit, as described above, and a floor unit arranged on the floor with a contacting element attached to a contacting arm.
  • the contacting element can be connected to the charging connection of the vehicle unit in order to establish an electrical connection.
  • the charging connection and the contacting element are designed to be connected to one another in a plane parallel to the underbody of the vehicle.
  • the contacting element is preferably arranged on the contacting arm in such a way that it is always aligned parallel to the sub-floor regardless of the position of the contacting arm, preferably by means of a parallelogram guide. Reliable contacting of the charging connection in a plane parallel to the underbody of the electric vehicle can thus be achieved.
  • the contacting element preferably has a receiving unit for receiving a positioning element for positioning the contacting element in relation to the vehicle unit.
  • the receiving unit and the vehicle unit preferably have sensors for localizing the receiving unit in relation to the vehicle unit and in particular in relation to the recess. Automatic positioning of the contacting element with respect to the charging connection can thus be achieved.
  • a method for automatically charging an electric vehicle which has the following steps: providing a vehicle unit mounted in the underbody of the electric vehicle with a charging connection, the charging connection being arranged parallel to the underbody of the electric vehicle, providing a floor unit with a contact arm on it free end a contacting element is arranged in a plane parallel to the underbody of the vehicle, approaching the contacting arm to the vehicle unit, and moving the contacting element in the direction of the charging connection parallel to the underbody of the electric vehicle.
  • a receiving unit of the contacting element is brought into engagement with a positioning unit of the vehicle unit to form a pivot axis, and the contacting element is aligned with the vehicle unit by pivoting the contacting element about the Swivel axis carried out around.
  • a positioning element is preferably provided which is designed for positioning and aligning the contacting element arranged on the contacting arm.
  • the contacting arm and the contacting element can be designed particularly efficiently through the positioning element and, for example, a separate drive for aligning the contacting element can be dispensed with. Because the contacting element is brought into engagement with the positioning element, a rotational alignment of the contacting element can for example be achieved by means of a pivoting drive of the contacting arm, the contacting element being arranged on the contacting arm via a freely rotatable axis of rotation and engagement takes place between the positioning element and the contacting element in a position radially spaced from the axis of rotation.
  • Figure 1 is a schematic perspective view from below of a vehicle unit with a cover in a closed position
  • FIG. 2 shows a schematic perspective illustration of the vehicle unit from FIG. 1, in which the cover is arranged in an open position
  • FIG. 3 shows a schematic, quasi-transparent representation of the vehicle unit from FIGS. 1 and 2, the vehicle unit being rotated 90 ° counterclockwise,
  • Figure 4 is a schematic transparent side view of the vehicle unit from the previous figures
  • FIG. 5 shows a schematic transparent side view of the vehicle unit, the cover being in a closed position
  • FIG. 6 shows a schematic perspective illustration of the charging device with the vehicle unit shown transparently in a closed state and with an approaching contacting arm
  • FIG. 7 shows the charging device from FIG. 6 with the vehicle unit, the cover being completely open and the contacting arm approaching
  • FIG. 8 shows the charging device from FIG. 7, a guide pin of the vehicle unit engaging a contacting element of the contacting arm,
  • FIG. 9 shows the charging device from FIG. 8, the contacting element being inserted into a recess in the vehicle unit
  • FIG. 10 shows the charging device from FIG. 9, the contacting element being completely contacted with the charging connection.
  • a vehicle unit 1 of a charging device is shown schematically.
  • the vehicle unit 1 is set up to be arranged in an electric vehicle.
  • a contacting arm not shown in the figure, of a floor unit, also not shown, can be used to contact a traction battery arranged in the electric vehicle with a power source providing a charging current.
  • the power source providing the charging current can be provided in the form of a wallbox.
  • the charging control can also be provided in the wallbox.
  • the electric vehicle can be an electric vehicle driven exclusively by an electric motor or a plug-in hybrid electric vehicle.
  • the charging device is used to establish automatic contact with an electric vehicle and then to start a charging process in order to charge a traction battery in the electric vehicle.
  • the aim of the charging device is to ensure that the entire contacting process and the charging process run essentially automatically, so that the driver or user of the electric vehicle does not have to intervene.
  • the driver only has to position or park his vehicle above a floor unit arranged in / on the floor of the parking space for the vehicle and the remaining steps of the contacting process and charging process then take place without further interaction with the driver or user.
  • a contacting process then takes place between a vehicle unit arranged in the underbody of the vehicle and the floor unit.
  • automatic communication between the electric vehicle to be charged and the charging device can take place and, for example, if the charging state of the electric vehicle falls below a predetermined level, a charging process can be started automatically become.
  • the driver actively initiates the charging process, but then at least no further manual interaction between the driver and the charging device is necessary.
  • the charging device will then establish physical contact with the motor vehicle via a contacting mechanism described below in order in this way to provide a charging current for charging the traction battery of the motor vehicle.
  • a contacting element of the floor unit is connected to a charging connection of the vehicle unit and a contact is established in this way.
  • a particularly convenient operation of a motor vehicle provided with an electric motor and an associated traction battery can be made possible by means of the charging device, in which the driver does not have to take any further steps after parking the motor vehicle above the floor unit and possibly initiating the charging process, since the charging device does this automatically and independently.
  • the proposed charging device can prevent a user from wanting to drive off while the motor vehicle is still in contact and then having to get out again in order to release the connection. Rather, the proposed charging device can also be used to achieve automatic, independent disconnection, which is carried out, for example, when the actual charging process has ended, i.e. the traction battery is completely filled again, or triggered, for example, by opening the motor vehicle or entering the interior of the Motor vehicle or switching on the motor vehicle. In other words, a user does not have to take any active steps to disconnect the existing contacting of the charging device. However, it can also be provided that the user specifies active disconnection by means of a corresponding disconnection command.
  • the vehicle unit 1 arranged in the electric vehicle has a housing 11 which can be received in a corresponding receptacle in the electric vehicle.
  • the vehicle unit 1 can be fastened on or in the underbody of the electric vehicle using screws.
  • screw holes 12 are provided at four corners of the housing 11, for example.
  • the vehicle unit 1 can be integrated flush into the underbody of the electric vehicle.
  • the housing 11 of the vehicle unit 1 is inserted so far into the electric vehicle that the downward-facing floor 110 of the housing 11 is essentially flush with the underbody of the electric vehicle.
  • a vehicle unit 1 mounted in the area of the underbody is provided for automatically charging a traction battery, the electrical connection between the vehicle unit 1 and a floor unit being established automatically.
  • the vehicle unit 1 is shown in Figure 1 in a view from below, wherein a cover 3 for covering a recess 6 shown in Figure 2, which receives a charging connection 4, can be seen in a closed position.
  • the cover 3 is provided to move from an open position into a closed position by means of a four-bar joint, as will be described in detail with reference to FIG. 3, among other things.
  • a mounting of the cover 3 via a four-bar linkage is preferred compared to a purely translatory mounting in the rough conditions under a vehicle, because the cover 3 is then less sensitive to dirt and easier to clean, e.g. B. as part of the regular maintenance of a specialist workshop.
  • the cover 3 preferably closes off the vehicle unit 1 in a planar manner.
  • the housing 11 of the vehicle unit 1 preferably has a recess 13 into which the cover 3 can move when it is opened, in order to create a planar formation of the underside of the housing 11 together with that in the open position in the open state Cover 3 to reach.
  • a planar design is particularly preferred in order to facilitate the introduction of a contacting element and, in particular, to avoid the contacting element catching on the different structures of the sub-floor.
  • a recess 6 is now exposed, in which a charging connection 4 and a positioning element are arranged.
  • the positioning element is shown in the form of a pin 5.
  • the positioning element can also be provided in other mechanical configurations - preferably those which enable positive engagement between the contacting element and the positioning element.
  • the charging connection 4 comprises the contacts by means of which contact can be achieved for electrically charging the battery of the electric vehicle.
  • the contacts of the charging connection 4 are designed to be connected to a contacting element designed, for example, as a plug.
  • the charging connection 4 is then designed accordingly in the form of a socket for receiving the contacting element designed as a plug.
  • the charging connection 4 and its contacts are designed such that the contacting element can be inserted (and released after the end of the charging process) in a direction that lies in a plane lying parallel to the underbody of the vehicle.
  • the charging connection 4 and its contacts are aligned parallel to the floor of the housing 11 of the vehicle unit 1, so that contacting can be achieved by moving in a direction lying in the plane of the underbody.
  • the pin 5 is used to guide and / or move and / or position the contacting element, as will also be explained further below with reference to FIG. 3 and FIGS. 6 to 10.
  • the charging connection 4 and the pin 5 are stored in a protected manner in the recess 6, so that the risk of contamination or damage from environmental and driving influences can be reduced. This protection would already be provided by the recess 6 alone, in particular if the charging connection 4 lies in the "slipstream" of the walls 60 of the recess defining the recess 6, so that dirt, water and stone chips do not hit the charging connection 4 directly during ferry operation, but practically stroke over it.
  • FIG. 3 corresponding to FIG. 2, a vehicle unit 1 is shown with the cover 3 in an open position and a view from below.
  • the housing 11 of the vehicle unit 1 is shown transparently in this and the following figures.
  • a drive 30 for the cover 3 and a drive 50 for the pin 5 can accordingly be seen in FIG.
  • the cover 3 is articulated to the housing 11 via a parallelogram guide with two guide legs 31, 32.
  • the cover 3 is thus articulated to the housing 11 via a four-bar linkage and can be moved from the closed position, as shown in FIG. 1, into the open position, as shown in FIG. 2, by means of the drive 30.
  • the cover 1 is therefore first lifted from the closed position by this articulation and then pivoted into the open position so that it is received in the recess 13.
  • the drive 30 also enables the cover 3 to be pivoted from the open position into the closed position.
  • the cover 3 always rotates parallel to the underbody of the vehicle from an open position to a closed position and vice versa.
  • the guide legs 31, 32 are pivotably mounted on the housing 11 via pivot joints 31a, 32a and pivotably mounted on the cover 3 via pivot joints 31b, 32b.
  • the drive 30 has a drive shaft 35 driven by a motor or a servo with a radial lever 34 and a coupling element 33 linked to the radial lever 34, which in turn is linked to one of the guide legs 32 of the parallelogram of the cover 3. By rotating the drive shaft 35, a corresponding movement can be applied to the guide leg 32 so that the pivoting movement for opening and closing the cover 3 can be applied by means of the motor or servo.
  • the drive axis 35 lies parallel to the pivot axes of the parallelogram guide for the cover 3, formed by means of the rotary joints 31 a, 31 b, 32 a, 32 b.
  • the drive 30 converts the rotation of the drive shaft 35 into an opening / closing movement of the cover 3.
  • cover 3 can be kept in the closed position simply and reliably by means of an over-center kinematics of the drive 30, as will be described for example with reference to FIG.
  • the drive 30 and in particular its motor or servo for the cover 3 also actuates the drive 50 for the pin 5.
  • a separate drive for the pin 5 is also conceivable.
  • the drive 50 for the pin 5 is correspondingly coupled to the radial lever 34, so that the motor or servo actuating the radial lever 34 also drives the drive 50.
  • the drive 50 comprises an eccentric axis 52 arranged on the radial lever 34, which extends parallel to the drive axis 35 in the exemplary embodiment shown, and a tension element 54 arranged on this via a first ball joint 53, which is attached to a first leg 56 via a second ball joint 55 Toggle lever assembly 57 is articulated. A second leg 58 of the toggle lever arrangement 57 is also provided.
  • the eccentric axis 52 could also be dispensed with in the case of a radial lever 34 arranged in a different position or in a different plane, and the tension element 54 could then be arranged directly on the radial lever 34 in the eccentric position.
  • a pulling or pushing movement is exerted on the pulling element 54 accordingly.
  • the pin 5 is arranged at the outer end 560 of the first limb 56 of the toggle lever arrangement 57, the pin 5 being mounted in a bearing 500, not explicitly shown, both linearly displaceable and rotatable.
  • a link guide can also be provided, by means of which the pin 5 can be moved in a precisely predetermined trajectory - for example, it swivels in a first movement area and a translatory movement in another movement area.
  • the outer end 580 of the second leg 58 of the toggle lever arrangement 57 is articulated on the housing 11.
  • the pin 5 In a closed position of the cover 3, the pin 5 is rotated by an angle ⁇ in a rotational movement A from the position perpendicular to the sub-floor, preferably by 45 °, so that the cover 3 can be closed. This will be described again in more detail with reference to FIG.
  • the pin 5 can therefore extend downward beyond the opened recess 6, as can be seen, for example, in FIG. This is important in order to position the contacting element and to guide it into the recess 6.
  • the pin 5 when the cover 3 is moved from a closed position to an open position, the pin 5 can rotate out of the recess 6 in the direction of rotation A, so that the pin 5 then at the latest when the cover 3 is fully open, perpendicular to the sub-floor from the recess 6 downwards protrudes.
  • the pin 5 is simultaneously subjected to the translatory movement in direction B, the pin 5 moving essentially away from the charging connection 4 when the cover 5 is opened.
  • the pin 5 When the cover 3 is moved further from a fully open position to a partially closed position, the pin 5 simultaneously moves in a translatory manner in the direction B towards the charging connection 4.
  • the pin 5 can also be arranged in a stationary manner in the housing 11 and instead the charging connection 4 can be designed such that it executes a translational movement in order to be connected to a contacting element.
  • the charging connection 4 then moves towards a contacting element introduced into the recess, for example, in order to achieve insertion and thus contacting of the charging connection 4 with the contacting element.
  • FIG. 4 the vehicle unit 1 already presented in connection with FIGS. 1 to 3 with the cover 3 in an open position and with a transparent housing 11 is shown schematically in a side view.
  • the cover 3 lies in a recess 13 in the housing 11 of the vehicle unit 1.
  • the pin 5 protrudes from the recess 6 perpendicular to the underbody of the vehicle and is ready for connection to the contacting element 7.
  • the vehicle unit 1 is shown schematically in a side view with the cover 3 in a closed position.
  • the cover 3 lies flush with the vehicle unit 1 over the recess 6 and thereby closes the access to the charging connection 4.
  • the pin 5 is rotated through an angle ⁇ from the vertical position in the direction of the underbody, so that it can be received completely in the recess 6 and the cover 3 can completely close the recess 6.
  • a connection method between a vehicle unit 1 and a floor unit 2 is shown in FIGS.
  • a contact arm 9 of a base unit 2 is shown schematically in FIG. 6, a contact element 7 being connected to a free end of the contact arm 9.
  • the connection of the contacting element 7 to the contacting arm 9 takes place via a parallelogram guide, so that the contacting element 7 always lies in a plane parallel to the underbody of the vehicle regardless of the movement of the contacting arm 9.
  • the contacting element 7 is arranged on the contacting arm 9 such that it can rotate freely in the direction of rotation C about an axis of rotation 70 arranged perpendicular to the plane of the sub-floor.
  • the contacting element 7 is pretensioned with a spring in an initial position with respect to the Kunststoff musclessams 9, so that the contacting element 7 always moves into this initial position when it is otherwise unaffected. In this starting position with respect to the contacting arm 9, the contacting element 7 is shown in FIG.
  • a robot arm or another lifting mechanism could also be used with which the contacting element 7 can be fed to the vehicle unit 1.
  • the contacting element 7 in the present embodiment is rotatably arranged on the contacting arm 9 in one of the plane parallel to the underbody of the vehicle.
  • the contacting element 7 approaches the vehicle unit 1 from below.
  • the cover 3 of the vehicle unit 1 completely closes the recess 6 and thus also the charging connection 4.
  • the next connection step is shown in FIG.
  • the contacting element 7 is raised so close to the vehicle unit 1 that a signal to open the cover 3 is triggered, for example by means of sensors.
  • the cover 3 is fully opened and the pin 5 simultaneously rotates out of the recess 6 towards the floor.
  • the pin 5 then protrudes vertically downward from the recess 6 and is thus ready for connection to the contacting element 7.
  • a positioning sensor system helps to guide a receiving unit 8 of the contacting element 4 to the pin 5 so that the positioning element in the form of the pin 5 can be connected to the receiving unit 8.
  • proximity sensors can be used for this purpose, e.g. B. Hall sensors, optical sensors, ultrasonic sensors etc.
  • the contacting element 7 with the receiving unit 8 is placed on the pin 5.
  • the receiving unit 8 of the contacting element 7 has a through hole 8 a which receives the pin 5 of the vehicle unit 1.
  • the contacting element 7 is moved horizontally and vertically until the through hole 8a can be pushed onto the pin 5.
  • the contacting element 7 can be pivoted around the pin 5 around the pivot axis 80 formed in this way in a plane parallel to the underbody of the vehicle until the contacting element 7 with the Recess 6 is aligned.
  • a rotational alignment of the contacting element 7 such that the contacting element 7 can then be inserted into the recess 6 can be achieved via the already provided drives of the contacting arm 9 of the floor unit 2 and the drive 30 of the cover 3 of the vehicle unit 1.
  • the final alignment of the contacting element 7 relative to the recess 6 can be achieved, for example, by providing a marking or a grid on the pin 5.
  • the contacting element 7 can also be controlled and aligned with respect to the recess 6 via the aforementioned sensor system in such a way that the contacting element 7 is rotated into the intended position in such a way that the contacting element 7 can be inserted into the charging connection 4.
  • the contacting element 7 is lowered into the recess 6 so that contacts provided in the contacting element 7 can be brought into a corresponding plane with the complementary contacts of the charging connection 4.
  • the pin 5 is pushed through the through hole 8 a in the receiving unit 8.
  • the contacts of the charging connection 4 face complementary contacts of the contacting element 7, as can be seen in FIG.
  • the pin 5 which has penetrated into the through hole 8a in the receiving unit 8 can also be seen.
  • the last connection step can be seen in FIG. 10, the contacting element 7 being moved translationally in direction B of the charging connection 4 with the aid of the pin 5. Since the drive 50 for the pin 5 is connected to the drive 30 for the cover 3, the cover 3 is simultaneously displaced from a fully open position into a partially closed position. After the contacting element 7 has latched into the charging connection 4, charging of the electric vehicle can begin.

Landscapes

  • 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

La présente invention concerne une unité de véhicule (1) comprenant un raccord de charge (4) pour charger une batterie d'un véhicule électrique, l'unité de véhicule (1) étant disposée dans le plancher du véhicule électrique, et le raccord de charge (4) étant conçu pour être raccordé à un élément de mise en contact (7), sur un plan parallèle au plancher.
EP20758161.2A 2019-08-16 2020-08-17 Unité de véhicule comprenant un raccord de charge et dispositif de charge pour charger une batterie d'un véhicule électrique Pending EP4013638A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102019122051.3A DE102019122051A1 (de) 2019-08-16 2019-08-16 Fahrzeugeinheit mit einem Ladeanschluss und Ladevorrichtung zum Laden einer Batterie eines Elektrofahrzeugs
PCT/EP2020/072973 WO2021032664A1 (fr) 2019-08-16 2020-08-17 Unité de véhicule comprenant un raccord de charge et dispositif de charge pour charger une batterie d'un véhicule électrique

Publications (1)

Publication Number Publication Date
EP4013638A1 true EP4013638A1 (fr) 2022-06-22

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EP20758161.2A Pending EP4013638A1 (fr) 2019-08-16 2020-08-17 Unité de véhicule comprenant un raccord de charge et dispositif de charge pour charger une batterie d'un véhicule électrique

Country Status (5)

Country Link
US (1) US20220314827A1 (fr)
EP (1) EP4013638A1 (fr)
CN (1) CN114302825A (fr)
DE (1) DE102019122051A1 (fr)
WO (1) WO2021032664A1 (fr)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD855562S1 (en) * 2017-02-24 2019-08-06 Ge Global Sourcing Llc Battery module
WO2022262935A1 (fr) * 2021-06-14 2022-12-22 Webasto SE Module de toit de véhicule à cinématique de réglage pour le rangement et l'extension d'un capteur de périmètre
US20240010209A1 (en) * 2022-07-06 2024-01-11 Gm Cruise Holdings Llc Environmental and electromagnetic seal for autonomous vehicle control systems

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010040796B4 (de) * 2010-09-15 2024-08-29 Kiekert Aktiengesellschaft Ladeeinrichtung für ein Elektrofahrzeug
DE102011076927A1 (de) * 2011-06-03 2012-12-06 Siemens Ag Vorrichtung zum Schutz einer Steckverbindungskomponente
EP2684733A1 (fr) * 2012-07-11 2014-01-15 Enzo Michele Illiano Station de charge pour véhicule électrique et son dispositif de charge
DE102014226357A1 (de) * 2014-12-18 2016-06-23 Robert Bosch Gmbh Ladestation und Verfahren zum automatischen Laden eines elektrischen Energiespeichers in einem Fahrzeug
DE102015015698A1 (de) * 2015-12-04 2017-06-08 Audi Ag Energiezuführeinrichtung und Energiezuführsystem zur Zuführung von Energie in ein Kraftfahrzeug
DE102016222853B4 (de) * 2016-11-21 2018-06-21 Audi Ag Koppeleinrichtung zum Herstellen und Trennen einer energieübertragenden Steckverbindung, und Energiezuführsystem mit einer solchen Koppeleinrichtung
US10351005B2 (en) * 2017-07-13 2019-07-16 Ford Global Technologies, Llc Vehicle charging system
AT520449B1 (de) * 2017-09-27 2019-04-15 Nrg X Charging Systems Gmbh Komponente für eine Ladeeinrichtung und Ladeeinrichtung hiermit
DE102018205594A1 (de) * 2018-04-12 2019-03-28 Bayerische Motoren Werke Aktiengesellschaft Kraftfahrzeug mit einer elektrischen Kontaktierungseinheit

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Publication number Publication date
DE102019122051A1 (de) 2021-02-18
WO2021032664A1 (fr) 2021-02-25
US20220314827A1 (en) 2022-10-06
CN114302825A (zh) 2022-04-08

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