WO2023222919A1 - Dispositif de charge pour charger un véhicule automobile, et module destiné à être intégré dans le dispositif de charge - Google Patents

Dispositif de charge pour charger un véhicule automobile, et module destiné à être intégré dans le dispositif de charge Download PDF

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Publication number
WO2023222919A1
WO2023222919A1 PCT/EP2023/063597 EP2023063597W WO2023222919A1 WO 2023222919 A1 WO2023222919 A1 WO 2023222919A1 EP 2023063597 W EP2023063597 W EP 2023063597W WO 2023222919 A1 WO2023222919 A1 WO 2023222919A1
Authority
WO
WIPO (PCT)
Prior art keywords
charging
module
measuring device
energy measuring
circuit board
Prior art date
Application number
PCT/EP2023/063597
Other languages
German (de)
English (en)
Inventor
Michael Finsinger
Markus Schmid
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 WO2023222919A1 publication Critical patent/WO2023222919A1/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
    • B60L53/60—Monitoring or controlling charging stations
    • B60L53/66—Data transfer between charging stations and vehicles
    • B60L53/665—Methods related to measuring, billing or payment
    • 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
    • B60L53/31—Charging columns specially adapted for 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
    • B60L2270/00—Problem solutions or means not otherwise provided for
    • B60L2270/30—Preventing theft during charging
    • B60L2270/32—Preventing theft during charging of electricity

Definitions

  • Charging device for charging a motor vehicle and a module for integration into the charging device
  • the present invention relates to a charging device for charging a motor vehicle and a module which is integrated into the charging device.
  • Charging devices for charging traction batteries of motor vehicles are designed, for example, as charging stations or wall boxes. Maintaining meter accuracy for billing the electricity consumed is a challenge.
  • Losses from the electricity meter or energy measuring device to the first transfer point to the customer may not be charged to the customer.
  • a charging station with an anti-theft device against unauthorized power diversion is known, in which the electrical energy delivered is measured at the connection of the charging station to the power grid, in the column and at the charging plug. By comparing the respective measured values together with a detection device which is set up to detect whether the housing of the charging station has been opened without authorization, it can be determined whether or not power is being tapped from the charging station without authorization.
  • a charging cable for an electric motor vehicle which, when charging the electric motor vehicle, measures the electrical energy flowing over the charging cable by means of an energy measuring device integrated in the charging cable.
  • the energy measuring device includes control and communication electronics, which activates the charging station and bills the charged electrical energy.
  • the disadvantage of this method is that the measurement and billing is carried out on an external, third-party cable and is therefore susceptible to manipulation and the tapping of electrical energy.
  • an energy measuring device in a charging station which is housed separately from a main circuit board in a tamper-proof housing.
  • the energy measuring device is designed in such a way that it can be connected to the main circuit board with a controller located thereon for controlling the charging station using a plug-in connection.
  • a docking station for charging an electric motor vehicle in which a measuring device for the amount of energy delivered is arranged separately from the charging control circuit between the connection to the power grid and the charging control circuit. This results in the disadvantage that the losses of the charging control circuit are also taken into account by the measuring device.
  • a charging device for charging electric motor vehicles which is arranged on a street lamp.
  • the amount of energy released during charging is activated and billed via a chip card integrated in the charging connector of the charging cable, which communicates with an electricity meter in the charging device.
  • the disadvantage is that power losses in the charging device are also taken into account.
  • a charging device for charging a motor vehicle which comprises a main circuit board and a transfer interface, the main circuit board being designed to be connected to a power network and to provide a charging current.
  • the transfer interface is set up to provide the charging current for charging the motor vehicle, with an energy measuring device being provided for measuring the energy used to charge the motor vehicle.
  • the charging device is characterized in that the energy measuring device is set up to measure the electrical energy at the transfer interface.
  • the charging device can be physically designed in the form of a charging station or a wallbox.
  • the main circuit board can be set up to convert a current from the power network, for example from the house network or from a separate power supply, into a charging current by means of power electronics and to provide the charging current at the transfer interface for charging the motor vehicle, the current from the power network being a direct current , can be an alternating current or a three-phase current.
  • the charging current is typically direct current, but depending on the application it can also be alternating current or three-phase current.
  • the main circuit board can be a Printed Circuit Board (PCB).
  • PCB Printed Circuit Board
  • the energy meter can be electrically connected between the main circuit board and the transfer interface, so that the conversion losses of the main circuit board are not measured by the energy meter.
  • the energy measuring device can preferably be set up to measure the electrical energy of the charging current directly at the transfer interface, which is a socket unit or an end facing away from the charging device the charging cable may be attached.
  • the energy measuring device can be set up to measure an active electrical energy and/or a reactive power and/or an apparent power of the charging current.
  • the energy measuring device can be an electricity meter.
  • the energy measuring device can be designed to be tamper-proof.
  • the invention also includes embodiments that result in further advantages.
  • the transfer interface is a socket unit, preferably for receiving at least one plug of a charging cable associated with the motor vehicle, and in particular forms a system boundary to the motor vehicle.
  • the transfer interface can be a socket unit, which is designed to accommodate at least one plug of an external charging cable, in particular a charging cable brought by the user. This has the advantage that the line losses of the charging cable no longer have to be taken into account for energy measurement that complies with guidelines or standards.
  • the energy measuring device is integrated into the transfer interface.
  • the energy measuring device can be arranged on the transfer interface, preferably on the socket unit, or can be integrated into a module in addition to the transfer interface, in particular the socket unit.
  • the energy measuring device can thus be electrically connected in series between the main circuit board and the transfer interface in the vicinity of the transfer interface. This results in the advantage that the electrical energy is measured by the energy measuring device at the transfer point from the charging device to the motor vehicle along the power path.
  • the transfer interface and/or a display device is integrated in a housing of the charging device or is arranged on the housing.
  • the transfer interface can be in the charging device, preferably in the housing Charging device integrated and / or arranged on the housing of the charging device, socket unit.
  • the housing of the charging device can also include a recess for the display device or can also provide no recess if the display device is designed as an external display device.
  • measurement and/or billing data can be transmitted via a network interface via a server to a mobile terminal as a display device.
  • the display device can serve as a user interface.
  • the display device can be designed as a touch screen and set up to receive user interaction.
  • the display device can function as a data verification unit for the received data, in particular the measurement data.
  • the energy measuring device is electrically connected in series between the main circuit board and the transfer interface.
  • the energy measuring device can be electrically connected in such a way that the energy measuring device measures the electrical energy along a power path of the charging current, which leads from the main circuit board via the transfer interface to the motor vehicle, between the transfer interface and the main circuit board, preferably in the vicinity of the transfer interface or on the transfer interface.
  • the energy measuring device is set up to transmit measurement data to the display device and/or to a server, preferably in encrypted form, by means of a data connection, in particular a wired and/or a wireless data connection.
  • the energy measuring device can be set up to transmit measurement data to a display device and/or to a server, in particular a server of a computer cloud infrastructure (cloud), by means of an interface for a wired and/or wireless data connection.
  • the energy measuring device and/or the display device and/or the network interface can be set up to receive data from the server, in particular billing data such as electricity price data, using the data connection.
  • the measurement data can be encrypted before being transmitted from the energy measuring device by means of a computing unit and/or from the network interface of the main circuit board.
  • billing data can also be displayed as additional charging information in the display device, particularly in a tamper-proof manner.
  • the display device is set up to preferably verify the measurement data and to display charging information derived from the measurement data, in particular a price billing of the electrical energy of the charging current used for charging.
  • the display device and/or the energy measuring device can have a computing unit, which can include a processor unit. Additionally or alternatively, the computing unit can be arranged on the main circuit board and each have an interface for said data connection to the energy measuring device and/or to the display device.
  • the measurement data can be verified and/or the charging information, in particular a charging time and/or a calculated battery charge state and/or a charging time forecast, can be calculated.
  • the computing unit can calculate a current price of the electrical energy already used for charging from the measurement data and a current energy price that was transmitted from the server to the energy measuring device and/or the display device via the data connection.
  • the computing unit can compare the measurement data from the energy measuring device in the display device by comparing the measurement data received by the computing unit using the wired data connection with the measurement data received by the computing unit using the wireless data connection.
  • the computing unit can, for example, form an average of the respective measurement data from the wired and wireless data connection as a correction value and additionally calculate the charging information based on the correction value and/or output an error message.
  • the computing unit in the energy measuring device and/or in the display device can comprise at least one processor unit and/or at least one memory, wherein program instructions are stored in the memory, which cause the processor unit to carry out the method stored therein for verifying the measurement data and/or the charging information and in addition or alternatively to encrypt and decrypt the measurement data, in particular for transmission and output in the display device.
  • the computing unit can have a data processing device or at least a processor device that is set up to carry out an embodiment of the method in question.
  • the processor device can have at least one microprocessor and/or at least one microcontroller and/or at least one FPGA (Field Programmable Gate Array) and/or at least one DSP (Digital Signal Processor).
  • the processor device can have program code that is designed to carry out an embodiment of the method in question when executed by the processor device.
  • the program code can be stored in a data memory or processor device.
  • the energy measuring device and in particular the transfer interface are separated from the main circuit board, preferably detached from the main circuit board, and encapsulated in a module.
  • the energy measuring device can not be arranged on the main circuit board, but on the transfer interface, which is separate from the main circuit board.
  • the module can be encapsulated in a tamper-proof manner and/or arranged on the housing of the charging device or integrated in the housing. This has the advantage that the main circuit board takes up less space and can therefore be designed to be smaller. This allows the housing of the charging device, such as a charging station or a wallbox, to be designed to be smaller. This also has the advantage that the energy measuring device can be replaced more quickly.
  • the module forms the system boundary to the motor vehicle and the housing preferably includes a receptacle for the module.
  • the module can include the energy measuring device and the socket unit, with the socket unit forming the system boundary between the charging device and the motor vehicle.
  • the module can be designed to be tamper-proof and therefore compliant with calibration law.
  • the socket unit can accommodate at least one plug from at least one external charging cable, which belongs to a motor vehicle and was brought along by the user.
  • the module can be electrically connected to the charging current connection or the main circuit board using an interface.
  • the recording of the charging device can include an analog interface.
  • the interface can have a wired and/or a wireless data connection between the module and the charging device. This has the advantage that a determination of line losses in the charging cable for the calculation of the charging information, in particular the price billing, can be avoided.
  • the energy measuring device in particular the module, is connected to the main circuit board by means of at least one cable connection and/or a plug connection.
  • the module can be plugged onto the main circuit board, preferably at the charging current connection, and/or electrically connected to the main circuit board, preferably at the charging current connection, by means of a cable.
  • This has the advantage that the module can be replaced more easily.
  • existing charging devices can be retrofitted more easily using the module for a directive-compliant or standard-compliant measurement of the electrical energy actually used by the user.
  • the motor vehicle is preferably designed as a motor vehicle, in particular as a passenger car or truck, or as a passenger bus or motorcycle.
  • the motor vehicle can be electrically powered (EV) or a hybrid electric vehicle (HEV, PHEV).
  • EV electrically powered
  • HEV hybrid electric vehicle
  • a module for integration into the charging device described above, which comprises a module housing which is designed to be inserted into a receptacle of a housing of the charging device described.
  • the module includes an interface for an electrical connection to a main circuit board of the charging device.
  • the module is characterized in that it includes an energy measuring device which is set up to measure the electrical energy at a transfer interface.
  • the module can include an energy measuring device and a transfer interface and can be set up to be integrated into the charging device, in particular in a housing of the charging device.
  • the module can include an interface which is set up to communicate with the main circuit board of the charging device by means of at least one Cable connection and / or a plug connection to be electrically connected.
  • the module housing and in particular the interface can be designed to be tamper-proof. This results in the advantage that the energy measuring device is detached from the main circuit board of the charging device, which means that a housing of the charging device can be made smaller.
  • existing charging devices can be retrofitted with the module and the aforementioned energy measuring device.
  • the module includes a socket unit and/or a feedthrough for an attached charging cable.
  • the module can be intended on the one hand for a charging device with an integrated socket unit and on the other hand for a charging device with an attached charging cable or for a combination thereof.
  • the socket unit and the bushing can, for example, be arranged next to one another on the module housing.
  • the energy measuring device in the module can also be electrically connected in series with the charging cable, in particular electrically connected in front of the charging cable, so that, for example, a display device integrated in the module and/or a network interface is supplied with electrical energy by the charging device which is not measured by the energy measuring device and therefore not billed to a user.
  • the module housing comprises a display device which is set up to receive data from the energy measuring device and/or from a server, preferably in encrypted form, using a network interface.
  • the module may include a display device connected to the network interface via a data connection.
  • the module or the charging device can include the network interface.
  • the interface by means of which the module is connected to the charging device, in particular to the main circuit board, can additionally provide a corresponding data connection.
  • the display device can be set up to decrypt the data received from the server using a computing unit. This results in the advantage that the housing of the charging device does not require a separate device for arranging the display device. This can simplify a manufacturing process of the charging device.
  • the module is set up to be supplied with electrical energy in parallel to a power path, the module in particular comprising a branch which is electrically connected between the interface and the energy measuring device.
  • components of the module such as the display device and/or the network interface, can obtain electrical energy for operation from the charging device, which is not measured by the energy measuring device.
  • the module can be electrically connected in a separate circuit to the main circuit board, in particular to the charging current connection, which is not detected by the energy measuring device.
  • This can be, for example, a secondary circuit that is independent of the power path.
  • the power path can refer to the circuit in which electrical energy flows from the main circuit board via the energy measuring device to an external electrical consumer, such as a charging motor vehicle. This has the advantage that the electrical energy used to operate the module and in particular to transmit and display data is not measured and is therefore not billed to the motor vehicle owner.
  • the energy measuring device is set up to transmit measurement data to the display device and/or to the server, preferably in encrypted form, by means of a data connection, in particular a wired and/or a wireless data connection.
  • the measurement data can be encrypted before being transmitted from the energy measuring device by means of a computing unit and/or from the network interface of the module and/or the main circuit board.
  • the module can include the computing unit and/or the network interface or, on the other hand, the charging device.
  • the interface of the module can provide a wired data connection for connecting to the charging device.
  • the data connection to the network interface in the charging device and/or to the display device can be designed to be wireless.
  • the data that is transmitted wirelessly between the module and the charging device can be encrypted.
  • the energy measuring device can be set up to encrypt the measurement data before sending.
  • the display device in the module housing can also be set up to decrypt the measurement data and/or billing data from the server, which can be a server of a computer cloud infrastructure (cloud), and to provide a user with the corresponding charging data, such as for example, display the amount of energy used and a price.
  • the invention also includes implementations that include a combination of the features of several of the described embodiments.
  • Figure 1 shows a schematic representation of a charging device, in which the power losses of the charging device are also measured by an energy measuring device;
  • Figure 2 shows a second schematic representation of the charging device and a module which includes the transfer interface to an external electrical consumer
  • Figure 3 shows a schematic representation of four variants of integrating the module into the charging device.
  • the charging device 1 schematically shows a charging device 1, in which the line and/or conversion losses of the charging device 1 for charging a motor vehicle 8 are also measured by an energy measuring device 10.
  • the charging device 1 can be, for example, a charging station or a wallbox.
  • the charging device 1 is connected to a power grid 4 via a power connection 6.
  • the charging device 1 has a main circuit board 2 in a housing 13, which is electrically connected to a transfer interface 3 by means of the charging current connection 12 via a cable 20.
  • the main circuit board 2 can be set up to obtain a current 5 from the power network 5 via the power connection 6 and to convert a charging current 7 for charging the motor vehicle 8 by means of power electronics (not shown), which is provided at the transfer interface 3.
  • the current 5 and the charging current 7 can be, for example, a three-phase current or an alternating current or a direct current.
  • a transfer interface 3 of the charging device 1 can, on the one hand, be a charging socket 26 arranged on the housing 13 of the charging device 1 for inserting a charging cable 9 brought by a user or, on the other hand, a charging plug on an end facing the motor vehicle 8, which is firmly attached to the housing 13 of the charging device 1, fixed charging cable 9.
  • the charging device 1 can have the charging socket 26 in the housing 13, into which a charging cable 9 for charging a motor vehicle 8 can be plugged.
  • the transfer interface 3 is the charging socket 26 in the housing 13.
  • the internal line 20 can be, for example, a cable and/or a plug connection.
  • the charging device 1 can have an attached charging cable 9, which is connected to the energy measuring device 10 of the main circuit board 2 by means of the charging current connection 12.
  • the energy measuring device 10 is connected to the firmly attached charging cable 9 via the charging current connection 12.
  • the attached charging cable 9 is passed through an opening in the housing 13 of the charging device 1 after the energy measuring device 10 led outside.
  • the transfer interface 3 is the charging plug of the charging cable 9.
  • the internal line 20 can, for example, merge into a charging cable 9 that is firmly attached to the housing 13 of the charging device 1, with the transfer interface 3 at the end of the charging cable 9 facing the motor vehicle 8 is arranged, which can be plugged into a charging socket of the motor vehicle 8.
  • the charging device 1 can also have a combination of the two embodiments.
  • the transfer interface 3 forms a system boundary 11 of the charging device 1 to the motor vehicle 8.
  • the charging socket 26 is therefore provided as a transfer interface 3 and in the second embodiment, the end of the attached charging cable 9 facing away from the charging device 1.
  • the charging cable 20 can be connected directly to the charging current connection 12 of the main circuit board 2.
  • the charging device 1 comprises an energy measuring device 10, which is usually electrically connected on the main circuit board 2 between the power connection 6 of the power network 4 and the charging current connection 12 of the main circuit board 2 and is set up for charging the motor vehicle 8 and for price billing to measure the electrical energy used during charging.
  • the charging device 1 has a power path 25, along which electrical energy is passed from the power connection 6 of the main circuit board 2 via the power electronics integrated thereon for power conversion to the charging current connection 12 and from there via the internal line 20 and / or the charging cable 9 to the motor vehicle 8 becomes.
  • an energy measuring device 10 is arranged on the main circuit board 2 or alternatively in the charging cable 9 on the internal line 20, which means that the line losses 27 between the main circuit board 2 and the transfer interface 3 are also measured by the energy measuring device 10.
  • the encapsulated energy measuring device 10 was integrated into the main circuit board 2.
  • a challenge here is to determine the power losses 27 between the energy measuring device 10 and the transfer interface 3 precisely enough or to predetermine them for a correction of the energy measurement.
  • the conversion and power losses 27, which are shown in dashed lines in Figure 1, should not actually be measured according to measurement guidelines.
  • a possible solution to this problem is shown in Figure 2.
  • FIG. 2 shows schematically a charging device 1, which includes a main circuit board 2 and a transfer interface 3 in a housing 13, the main circuit board 2 also being connected to the power network 4 via the power connection 6 and being set up to generate a charging current from a current 5 of the power network 4 7 to be conditioned for charging the motor vehicle 8.
  • the current 5 can be, for example, an alternating current or a three-phase current.
  • the current 5 can also be a direct current.
  • the main circuit board 2 can be set up by means of power electronics, not shown, to generate the charging current 7, which can be a direct current or an alternating current or a three-phase current, from the respective current 5.
  • the main circuit board 2 is set up to transfer the charging current 7 via the charging current connection 12 to a transfer interface 3 by means of the internal line 20, which electrically connects the energy measuring device 10 or the module 19 by means of an interface 23 to the charging current connection 12 of the main circuit board 2 by means of the plug 21 , to provide.
  • the energy measuring device 10 can be provided in a module 19, which is integrated into a housing 13 of the charging device 1, preferably in a tamper-proof manner, and is electrically and additionally communicatively connected to the charging device 1 by means of the interface 23.
  • the interface 23 can, for example, be designed as a plug connection, which, in addition to the use of contact-analog plugs 21, can provide an internal line 20, such as a cable, in accordance with a way of integrating the module housing 24 into the housing 13 of the charging device 1.
  • the module 19 is connected to the charging current connection 12 of the main circuit board 2 via the interface.
  • the transfer interface 3 is designed as a socket unit in which the energy measuring device 10 is integrated.
  • the transfer interface 3 can, for example, be a socket unit integrated in the housing 13 and/or arranged on the housing 13, which is set up to receive a plug head of a user's (external) charging cable 9 associated with the motor vehicle 8, so that the transfer interface 3 the system boundary 11 between the charging device 1 and the motor vehicle 8, in particular between the charging device 1 and the (external) charging cable 9 forms. So that line and conversion losses of the charging device 1 are not measured by the energy measuring device 10, the energy measuring device 10 is set up to measure an electrical energy of the charging current 7 at the transfer interface 3.
  • the energy measuring device 10 can be electrically connected in series between the main circuit board 2, in particular the charging current connection 12, and the transfer interface 3. This can ensure that only the electrical energy of the charging current 7 used by the user is measured by the energy measuring device 10.
  • the energy measuring device 10 can be set up to transmit measurement data 14 to a display device 17 by means of a wired data connection 15 and / or a wireless data connection 15 ', which displays the measurement data 14, in particular the electrical energy of the charging current 7 measured by the energy measuring device 10, to a user displays.
  • the display device 17 can be integrated into the housing 13 and/or arranged on the housing 13.
  • the display device 17 may be an external display device 17, such as a mobile device, which receives the data from the server and/or the network interface 16 via a wireless data connection 15.
  • the display device 17 can display charging information derived from the measurement data 14, such as a battery charge status or filling level calculated using the measurement data 14 and/or a charging duration and/or a charging time forecast.
  • the display device 17 can display a price bill for the electrical energy used that is derived from the measurement data 14.
  • the display device 17 can comprise a computing unit, which uses a processor unit to calculate the charging information, in particular the price billing, from the measurement data 14 and makes it available to the display device 17 for display.
  • the computing unit can receive billing data from a server 18 or the energy measuring device 10 via the data connection 15, 15 '.
  • the display device 17 can use the computing unit to carry out a verification of the measurement data 14, in particular a plausibility check, in that the display device 17 is set up to use the computing unit to transmit measurement data 14 via the wireless data connection 15 'and the wired data connection 15 from the energy measuring device 10 to receive and compare the respective measurement data with each other.
  • the computing unit can carry out a correction, such as forming an average value and/or outputting an error message.
  • the energy measuring device 10 can transmit and/or receive measurement data 14 to a network interface 16 by means of a wireless data connection 15′, wherein the network interface 16 can be integrated on the main circuit board 2 and/or in the energy measuring device 10. Additionally or alternatively, said data connection 15′ can also be a wired data connection 15.
  • the measurement data 14 can be transmitted via the network interface 16 to an external server 18, for example a server 18 of a computer cloud infrastructure (cloud).
  • the energy measuring device 10 or the computing unit can additionally receive billing data from the server 18 via the network interface 16.
  • the data transmission between the energy measuring device 10 and the display device 17 and/or the server 18, in particular the network interface 16, can advantageously be encrypted.
  • the energy measuring device 10 can be separated from the main circuit board 2.
  • the energy measuring device 10 is therefore not arranged on the main circuit board 2, so that the main circuit board 2 can be smaller and thus the housing 13 can be made smaller.
  • a wallbox can be designed to be more compact as a charging device 1.
  • the transfer interface 3 and the energy measuring device 10 can preferably be encapsulated in a module 19 in a tamper-proof manner.
  • the module 19 can therefore include the energy measuring device 10 and the transfer interface 3, with the energy measuring device 10 being set up to measure the electrical energy of the charging current 7 at the transfer interface 3.
  • the energy measuring device 10 can be electrically connected in series with the transfer interface 3 in the module 19.
  • the module 19 can be electrically connected to the main circuit board 2, preferably at the charging current connection 12, for example by means of a cable and/or a plug connection.
  • the module 19 can be set up to be arranged on the housing 13 in a preferably tamper-proof manner or to be integrated into the housing 13.
  • the example of the charging device from Figure 2 integrates the encapsulated energy measuring device 10 in the charging device 1 at the transfer interface 3.
  • the charging cable brought by a user is plugged into the charging socket of the motor vehicle 8 in order to connect the motor vehicle 8 (EV) to the charging device 1.
  • the energy measuring device 10 By arranging the energy measuring device 10 in the charging device 1 at the transfer interface 3, the unknown supply line losses are eliminated Normally integrated energy measuring device 10 to the first transfer point of the electrical energy is almost eliminated. This means that measurement errors can be significantly reduced.
  • the electrical energy delivered to the motor vehicle 8 can be measured directly at the transfer interface 3 and in particular directly at the charging socket 26, so that the power loss of the charging cable 9 brought by a user is no longer relevant.
  • the display device can be controlled directly by the energy measuring device 10.
  • FIG. 3 shows schematically four different variants 28, 29, 30 and 31 of the charging device 1 with a module 19 as a transfer interface 3.
  • the module 19 is arranged on the housing 13, the module 19 and the housing 13 preferably being designed to be tamper-proof are.
  • the charging device 1 and in particular the module 19 are designed without an energy measuring device 10, the electrical energy delivered to the motor vehicle 8 being measured beyond the system boundary 11 by an energy measuring device of a charging cable 9 brought by a user.
  • the charging device 1 has a charging socket 26 for inserting a charging plug of an external charging cable 9, so that the charging socket 26 serves as a transfer interface 3 and thus forms a system boundary 11 to a charging motor vehicle 8.
  • the charging socket 26 is electrically connected to the charging current connection 12 of the main circuit board 2 by means of the internal line 20.
  • the charging device 1 and in particular the module 19 are also designed without an energy measuring device 10.
  • a firmly attached charging cable 9 is firmly connected directly to the charging current connection 12 of the main circuit board 2 and is guided internally through an opening in the housing 12 and/or through an opening in the module housing 24.
  • the charging plug at the end of the charging cable 9, which faces away from the charging device 1, forms the system boundary 11 to a charging motor vehicle 8.
  • the electrical energy delivered to the motor vehicle 8 is measured beyond the system boundary 11, for example by means of a Energy measuring device of an on-board charger of the motor vehicle 8.
  • the third variant 30 is similar to the first variant 28. In addition, the third variant 30 has one
  • the module 19 here has the charging socket 26 as a transfer interface 3 for inserting an external charging plug charging cable 9.
  • the module 19 has the energy measuring device 10, which is set up to measure electrical energy directly at the charging socket 26, i.e. at the transfer interface 3.
  • the energy measuring device 10 can be integrated in the transfer interface 3 of the charging device 1.
  • the charging device 1 can, for example, be configured in a very late production step with the module 19 or with the transfer interface 3.
  • the module 19 has a display device 17 for displaying measurement data 14 and/or billing data.
  • the display device 17 is also connected in the module 19 to the energy measuring device 10 by means of a data connection 15, whereby the display device 17 can receive measurement data 14 from the energy measuring device 10.
  • the energy measuring device and/or the display device 17 are also connected to the network interface 16, which is arranged in the charging device 1, by means of the data connection 15.
  • the interface 23, by means of which the module 19 is connected to the charging device 1, can additionally provide the data connection 15.
  • the data connection 15 can also be designed to be wireless.
  • the measurement data 14 can be transmitted from the energy measuring device 10 and/or the display device 17 to the network interface 16, which can send the measurement data 14 to an external server 18 in a cloud using the data connection 15.
  • the display device 17 and/or the energy measuring device 10 can receive data from the server 18, such as billing data, via the network interface 16.
  • a command from a user interaction via the server 18 can be received from the network interface 16.
  • a user can make a user input using the display device 17, which is arranged on the charging device 1 or belongs to a mobile terminal, which is transmitted to the charging device 1 by means of the server 18 via the network interface 16.
  • the user input can include, for example, starting and/or ending the loading process.
  • the fourth variant 31 is similar to the second variant 29, where the charging device 1 has a firmly attached charging cable 9.
  • the fourth variant 31 has a server 18, for example for providing a cloud service.
  • the energy measuring device 10 is connected by means of the internal line 20, with the firmly attached charging cable 9 being connected directly to the energy measuring device 10.
  • the charging plug at the end of the charging cable 9, which faces away from the charging device 1, forms the system boundary 11 to a charging motor vehicle 8.
  • the energy measuring device 10 is set up to only detect power losses 27 to measure the part of the charging cable 9 which protrudes from the housing 13 of the charging device and in particular from the module housing 24.
  • the energy measuring device 10 is connected to the display device 17 by means of a data connection 15, which is set up to display the measurement data 14.
  • the display device 17 and/or the energy measuring device 10 are also connected to the network interface 16 in the charging device 1, which can communicate with the server 18 via the data connection 15, for example to receive billing data.
  • the examples from Figure 3 show that the energy measuring device 10 is integrated directly in the transfer interface 3, in particular in front of the charging cable 9 and/or in the charging socket 26.
  • the energy measuring device 10 can be arranged in a separate module 19 from the main circuit board 2 on the charging device 1, so that the housing 13 of the charging device 1 can be made smaller and / or existing charging devices 1 can be retrofitted in accordance with the guidelines.
  • the third variant 30 and the fourth variant 31 thus provide an energy measuring device 10 integrated in the transfer interface 3, in particular the charging socket 26 and/or the charging cable 9, which is connected to the display device 17 and provides a calibrated measurement of the energy to the motor vehicle 8 emitted electrical energy, whereby power loss is compensated for by moving the system boundary 11 to the charging socket 26 of the charging device 1 using the charging cable 9 brought by the user and/or by directly measuring the electrical energy at the transfer interface 3.
  • losses in the charging cable 9 provided by the user are automatically taken into account and/or the power loss in the case of a firmly attached charging cable is compensated for, for example, by means of a correction value.

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

L'invention concerne un dispositif de charge (1) pour charger un véhicule automobile (8), comprenant une carte de circuit imprimé principale (2) et une interface de transmission (3), la carte de circuit imprimé principale (2) étant conçue pour être connectée à un réseau électrique (4) et pour fournir un courant de charge (7), et l'interface de transmission (3) étant conçue pour fournir le courant de charge (7) afin de charger le véhicule automobile (8). Un dispositif de mesure d'énergie (10) est prévu pour mesurer l'énergie utilisée pour charger le véhicule automobile (8), et le dispositif de mesure d'énergie (10) est conçu pour mesurer l'énergie électrique au niveau de l'interface de transmission (3).
PCT/EP2023/063597 2022-05-20 2023-05-22 Dispositif de charge pour charger un véhicule automobile, et module destiné à être intégré dans le dispositif de charge WO2023222919A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102022112749.4A DE102022112749A1 (de) 2022-05-20 2022-05-20 Ladevorrichtung zum Laden eines Kraftfahrzeugs und ein Modul zur Integration in die Ladevorrichtung
DE102022112749.4 2022-05-20

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WO2023222919A1 true WO2023222919A1 (fr) 2023-11-23

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EP3751296A1 (fr) 2019-06-12 2020-12-16 LEM International SA Compteur cc pour station de charge de véhicule électrique
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US20090177595A1 (en) * 2008-01-08 2009-07-09 Stephen David Dunlap Bidirectional metering and control of electric energy between the power grid and vehicle power systems
AT507605A1 (de) * 2008-12-12 2010-06-15 Eckhard Dipl Ing Sauper Intelligentes, modulares stromtankstellensystem für elektrofahrzeuge
DE102009008157A1 (de) 2009-02-09 2010-08-19 Detlef Jahn Vorrichtung zum Versorgen von Energiesammlern, insbesondere Energiesammlern von Elektrofahrzeugen, mit elektrischer Energie
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WO2012059804A1 (fr) * 2010-11-05 2012-05-10 パナソニック株式会社 Module d'appareil de charge pour véhicule électrique
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EP3266646A1 (fr) 2016-07-01 2018-01-10 Hyundai Motor Company Boîte de commande du câble d'entrée monté sur un câble de charge de véhicule électrique et procédé de charge de véhicule électrique faisant appel à celui-ci
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CN112339595A (zh) 2020-10-13 2021-02-09 安徽匠桥新能源科技有限公司 一种防偷电充电桩

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