EP4162436A1 - Ladevorrichtung für elektrofahrzeuge, system mit einer solchen ladevorrichtung und verfahren zum betreiben einer derartigen ladevorrichtung - Google Patents
Ladevorrichtung für elektrofahrzeuge, system mit einer solchen ladevorrichtung und verfahren zum betreiben einer derartigen ladevorrichtungInfo
- Publication number
- EP4162436A1 EP4162436A1 EP21715863.3A EP21715863A EP4162436A1 EP 4162436 A1 EP4162436 A1 EP 4162436A1 EP 21715863 A EP21715863 A EP 21715863A EP 4162436 A1 EP4162436 A1 EP 4162436A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- charging
- charging device
- energy
- energy meter
- display
- 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.)
- Withdrawn
Links
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- 230000008569 process Effects 0.000 claims description 71
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- 238000005516 engineering process Methods 0.000 claims description 4
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- 238000011161 development Methods 0.000 description 4
- 230000018109 developmental process Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000013475 authorization Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 3
- 230000005611 electricity Effects 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000001413 cellular effect Effects 0.000 description 1
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- 238000001514 detection method Methods 0.000 description 1
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- 238000005259 measurement Methods 0.000 description 1
- 238000004886 process control Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Classifications
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- 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D4/00—Tariff metering apparatus
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q20/00—Payment architectures, schemes or protocols
- G06Q20/08—Payment architectures
- G06Q20/14—Payment architectures specially adapted for billing systems
- G06Q20/145—Payments according to the detected use or quantity
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q30/00—Commerce
- G06Q30/02—Marketing; Price estimation or determination; Fundraising
- G06Q30/0283—Price estimation or determination
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q50/00—Information and communication technology [ICT] specially adapted for implementation of business processes of specific business sectors, e.g. utilities or tourism
- G06Q50/06—Energy or water supply
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q50/00—Information and communication technology [ICT] specially adapted for implementation of business processes of specific business sectors, e.g. utilities or tourism
- G06Q50/40—Business processes related to the transportation industry
-
- G—PHYSICS
- G07—CHECKING-DEVICES
- G07F—COIN-FREED OR LIKE APPARATUS
- G07F15/00—Coin-freed apparatus with meter-controlled dispensing of liquid, gas or electricity
- G07F15/003—Coin-freed apparatus with meter-controlled dispensing of liquid, gas or electricity for electricity
- G07F15/005—Coin-freed apparatus with meter-controlled dispensing of liquid, gas or electricity for electricity dispensed for the electrical charging of vehicles
-
- G—PHYSICS
- G07—CHECKING-DEVICES
- G07F—COIN-FREED OR LIKE APPARATUS
- G07F15/00—Coin-freed apparatus with meter-controlled dispensing of liquid, gas or electricity
- G07F15/08—Coin-freed apparatus with meter-controlled dispensing of liquid, gas or electricity with means for varying the tariff or changing the price
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2250/00—Driver interactions
- B60L2250/16—Driver interactions by display
-
- 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D2204/00—Indexing scheme relating to details of tariff-metering apparatus
- G01D2204/10—Analysing; Displaying
- G01D2204/16—Displaying of utility pricing or cost
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- 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
- Y02T90/16—Information or communication technologies improving the operation of electric vehicles
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/16—Information or communication technologies improving the operation of electric vehicles
- Y02T90/167—Systems integrating technologies related to power network operation and communication or information technologies for supporting the interoperability of electric or hybrid vehicles, i.e. smartgrids as interface for battery charging of electric vehicles [EV] or hybrid vehicles [HEV]
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/30—Smart metering, e.g. specially adapted for remote reading
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S30/00—Systems supporting specific end-user applications in the sector of transportation
- Y04S30/10—Systems supporting the interoperability of electric or hybrid vehicles
- Y04S30/14—Details associated with the interoperability, e.g. vehicle recognition, authentication, identification or billing
Definitions
- Charging device for electric vehicles system with such a charging device and method for operating such a charging device
- the invention relates to a charging device for electric vehicles, having a charging connection for the electric vehicle and an associated charging control.
- the charging device also has an energy meter for detecting an amount of energy released by the charging device during the charging process.
- the invention further relates to a system with such a charging device and an operating method for such a charging device.
- Charging devices are used to charge electric vehicles by providing electrical energy in a suitable form, as direct current or alternating current, at a charging connection, for example a charging socket or a charging cable with a corresponding plug.
- the charging devices can be designed in the form of charging stations or wall mounting.
- Another requirement is that a user must be comprehensibly informed about the energy price of the subsequent charging process before the start of a charging process.
- a charging device is set up to transmit a value for an energy price from the control unit to the energy meter for display on its display.
- an energy meter is mandatory as part of the charging control.
- the energy meter is usually arranged in a closed measuring capsule, which is preferably closed, in particular sealed, in accordance with calibration law.
- the energy meter has a display for the meter reading, which can usually be read from the outside of the charging device through a sight glass.
- the inventive transmission of the value for the energy price and its representation on the display of the energy meter provides information be the price in an encapsulated unit and thus compliant with calibration law.
- the already established conformity of the energy meter with calibration law is used to indicate the energy price in compliance with calibration law without additional components and thus with little additional effort.
- the energy meter is coupled to a signature unit in order to digitally sign the meter reading and the value for the energy price.
- a digital signature for the meter reading is known from charging stations. Because the signature unit available for this is also used to sign the energy price, this size is also stored in a traceable and tamper-proof manner during the charging process, without a separate signature unit having to be used.
- the energy meter is preferably arranged together with the signature unit in a measuring capsule, in particular in a closed measuring capsule.
- the charging device has a payment device with at least one input terminal for receiving user input and a card and / or NFC (Near Field Communication) reader.
- NFC Near Field Communication
- a system according to the invention for charging an electric vehicle has at least one such charging device which is connected in terms of data technology to a network environment that provides a charging device management service.
- a value for the energy price can be transmitted to the charging device for display on the energy meter via the data connection.
- the at least one charging device is connected in terms of data technology to a further network environment which provides a billing service.
- a billing service that is independent of the operator of the charging device can thus be used.
- the value for the energy price is retrieved from a network environment.
- the operator can easily adapt the price to current energy prices in a flexible manner.
- the charging column according to the invention is suitable for carrying out charging processes with users who have not previously concluded a contract with an operator of the charging column.
- the payment facility and subsequent authorization enable such a user to use the charging device.
- At least one meter reading of the energy meter and the value for the energy price are digitally signed and stored.
- the digitally signed data can preferably be called up by the user and used to create a receipt.
- a user provides information on the charging process, on the basis of which the charging process is identified.
- the data can include sections of a card number, a position of the loading device and / or a time of the loading process. Corresponding information from the user is compared with the data in order to identify a data record of a loading process assigned to the user.
- Figure 1 is a schematic diagram of a system with a charging device
- FIG. 2 is a schematic diagram showing the structure of a loading device
- FIGS. 3a, b each show a flowchart to illustrate a method for operating a charging device.
- FIG. 1 a system with a loading device 10 is shown in the form of a schematic diagram.
- the system comprises network environments 4,
- the charging device 10 can be set up, for example, to provide direct and / or alternating voltage, the latter on one or more phases, at its charging connection.
- a three-phase AC voltage of a low-voltage power supply network is used as a rule.
- the charging device 10 can also be connected to a DC bus for its energy supply.
- the charging device 10 can be designed as a (free-standing) charging column or can also be seen easily for wall mounting.
- the charging device 10 is also referred to as the charging station 10 by way of example and not by way of limitation.
- the charging station 10 includes a charging controller 11, which controls the loading of the charging connection with energy.
- the charge controller 11 is in connection with switching elements, also not shown here, for example contactors, which couple the contacts of the charging connection to the power supply network. If necessary, rectifiers and / or voltage converters can be connected in between.
- the charging device 10 also has safety devices, not shown, for example overcurrent fuses and differential current switches (direct and / or alternating current sensitive).
- the charging column 10 further comprises a sequence controller 12, for example an industrial PC, which is optionally equipped with or is connected to a display unit, for example a screen, in particular a touchscreen.
- a database 13 is available for storing information about loading processes, with which the sequence controller 12 can communicate or which is implemented within the sequence controller 12.
- a payment device 14 is provided which enables a payment process for the electricity supplied by the charging station 10 to be processed. Details of the structure of the charging device 10 are explained in more detail below in FIG.
- the charging device 10 is connected to a network, in particular the Internet. This can be done in a wired manner via an Ethernet connection, via a telephone connection with a corresponding converter, or wirelessly via a cellular modem, in particular according to the GSM or the 5G standard.
- the network connection is shown by several connections of the loading device 10 to network environments 4, 5.
- the division into the network environments 4, 5 corresponds to different logical network areas; specifically, the network environment 4 is assigned to an operator 1 of the charging device 10 and the network environment 5 is assigned to a billing service via which payment for the electricity supplied by the charging device 10 is handled.
- the network environment 4 assigned to the operator 1, hereinafter also referred to as operator cloud 4 for short, comprises one or more servers that provide various services, a charging device management service 41 and a receipt management service 42.
- the charging device management service 41 exchanges data with the charging controller 11 of the charging device 10.
- an operator 1 operates several charging devices lines 10, which then each communicate with the charging device management service 41. Operating states and usage states of the respective charging device 10 are recorded via the charging device management service 41.
- the data and information collected by the charging device management service 41 can be called up by the operator 1 for monitoring and / or controlling the various charging devices 10.
- the document management service 42 is an independent service that a user 2 of the charging device 10 can access after he has carried out a charging process at the charging station 10. Via the document management service 42, the user 2 can subsequently receive information about a loading process that has been carried out by calling up and checking it using an application 3 (“app”) on a mobile device or a stationary computer. Details of this process are explained below using a process sequence of a loading process in connection with FIG. 3b.
- the document management service 42 is independent of the loading device management service 41 and does not access the information collected by it either, but is in direct data exchange with the sequence control 12 of the loading device 10.
- Figure 2 shows details of the structure of the loading device 10 also in a schematic diagram. Network connections leading to the outside are not shown in this illustration.
- the charging controller 11 comprises a control unit 111 which actually controls the charging process.
- the control unit 111 is in data exchange with the sequence controller 12, z. B. to initiate or cancel the loading process and also to transfer information about the loading process to the sequencer 12 for storing z. B in the database 13 and forwarding to the operator cloud 4.
- the data connection between the control unit 111 and the sequence controller 12 takes place, for example, via an Ethernet connection, a robust protocol, for example Modbus-TCP, being used.
- an energy meter 112 is provided as part of the charging controller 11.
- the energy meter 112 is locked together with a signature unit 113 Measuring capsule 114 arranged, which is preferably closed in accordance with calibration law, in particular sealed.
- Energy quantities or meter readings recorded by the energy meter 112 are digitally signed in the signature unit 113, so that a data record created by the signature unit 113 and transferred to the control unit 111 cannot be manipulated subsequently.
- Known methods based on asymmetric encryption can be used as the signature method in the signature unit 113.
- the signature unit 113 generates a key pair, comprising a private key and a public key, of which the private key remains hidden in the signature unit 113 and thus in the measuring capsule 114, whereas the public key is sent to the control unit 111 and thus ultimately can also be issued to the outside world.
- a suitable signature algorithm is, for example, the ECDSA (Elliptic Curve Digital Signature Algorithm) method.
- a data connection between the energy meter 112 and the signature unit 113 and also between the signature unit 113 and the control unit 111 uses the Modbus protocol, for example, in particular in the Modbus RTU configuration with information transmitted in binary form.
- FIG. 2 shows the structure of the payment device 14 in more detail.
- the charging device 10 provides one or more input terminals 141 for this purpose, each of which is coupled to one or more card or NFC (Near Field Communication® readers 142.
- the card or NFC readers 142 enable a credit card or bank card with a payment function to be read in / or equivalent data that is stored in a mobile device, for example a smartphone.
- a mobile device for example a smartphone.
- PIN personal identification number
- a release to be returned by the billing service is transmitted from the payment device 14 to the sequence controller 12, which can then either initiate or cancel the charging process in communication with the charging controller 11. Details on this are also explained in the context of FIG.
- the connection between the input terminal 141 and the card or NFC reader 142 is usually carried out via a serial data bus, for example in accordance with the RS-232 Specification. Data is transmitted from the input terminal 141 to the sequence controller 12, for example, via an Ethernet connection using the ZVT protocol established for payment functions.
- FIG. 3a an embodiment of an operational method according to the application for a charging device 10 or a system with a charging device 10 is shown in the form of a flowchart.
- the operating method can be carried out, for example, by the charging device 10 shown in FIGS. 1 and 2 and is explained below by way of example with reference to these figures.
- FIG. 3a The process sequence according to FIG. 3a relates to the charging process as such.
- FIG. 3b an optionally subsequent process section is also shown in the form of a flowchart, which illustrates the provision of a document (receipt) after the loading process according to FIG. 3a has been carried out.
- a price for an amount of energy is provided in the method shown in FIG. 3a.
- This can take the form of a price per kilowatt hour (kWh), for example.
- the value of the energy price can in one embodiment already in the Ladevor direction 10, z. B. in the database 13, be deposited.
- the value of the price is stored in the charging device management service 41 and is retrieved from the operator cloud 4 by the charging device 10, specifically the sequence control 12.
- the price is flexible in that it can be adapted by the operator 1 to current energy prices.
- step S2 the value retrieved in step S1 is forwarded from the sequence controller 12 to the charging controller 11 and there transmitted to the energy meter 112 via the control unit 111 and the signature unit 113.
- the price is then displayed by the energy meter 112 on a display (Dis play) of the energy meter 112.
- the display of the energy meter 112 can be read from the outside of the charging device 10 through a sight glass.
- the price is indicated in a capped unit of the measuring capsule 114 and thus in compliance with calibration law.
- the price is also displayed on a display that is easier to see for a user 2, for example one with the sequence control réelle 12 connected display.
- the user 2 has the opportunity to read the price in accordance with the legal requirements on the energy meter 112 and to compare it with the price that is otherwise displayed.
- a next step S3 it is queried whether a user 2 would like to use the charging device 10 to charge his electric vehicle, which is associated with connecting the electric vehicle to the charging connection of the charging device 10, for example.
- step S4 the payment device 14 is activated and the user is requested, e.g. via the display coupled with the flow control 12, to select a payment option in order to initiate a payment process. If necessary, the user can choose between different payment options (credit card, EC card, contactless payment via a mobile device).
- Entered payment information for example the card identification numbers and information on an identification number (PIN) that may have to be entered, are transmitted in step S4 to the further network environment 5 (hereinafter also referred to as billing cloud 5) and a billing service that has been abandoned there .
- billing cloud 5 the further network environment 5
- a typical maximum amount that can be incurred for a charging process is sent to the billing service in order to make a reservation or advance booking of this amount. Accordingly, the payment option must allow a credit line of this amount in order to result in authorization and approval by the billing service.
- a response from the billing service is received from the billing cloud 5 by the payment device 14 and passed on to the process control 12. This checks whether the billing service authorizes and approves the pending transaction. If this is not the case, the method branches back to step S3, whereby the charging device 10 is ready for a further charging process or a repetition of this charging process.
- the step branches to a next step S6, in which the loading process is started.
- the billing service can generate a transaction number that is used as an identification number for the further process.
- corresponding information is transferred to the charging controller 11, passing on the transaction number.
- the signature unit 113 is requested to read out the current counter reading of the energy meter 112 and to save it as the energy counter reading at the start of the charging process.
- step S7 repeatedly checks whether the loading process is still active or is aborted by terminating the loading process or exceeding a maximum time provided for the loading process.
- a step S8 after the end of the charging process, the value of the energy meter 112 is read again and a data packet is created that contains the counter reading at the beginning of the charging process, at the end of the charging process and the counter difference.
- Each of the data packets includes further key values for the charging process and also the price per unit of energy previously communicated and displayed by the energy meter 112. These data packets are signed by the signing unit 113 using the private key.
- the data packets are transmitted from the control unit 111 of the charging controller 11 to the sequence controller 12 and also to the charging device management service 41 in the operator cloud 4.
- a copy of the public key of the signing process is also transmitted from the control unit 111 of the charging controller 11 to the sequence controller 12 and from there to the document management service 42, independently of the data packets.
- provision can be made for a copy of the public key to be added directly to the data packets. With the help of the public key, the authenticity of the transmitted data packets can be checked in subsequent steps (cf. step S13).
- a final step S10 the information from the data packets is used to inform the billing service in the further network environment 5 of the costs actually incurred. A difference to the The amount debited in advance will be credited accordingly. This ends the actual charging process.
- steps S1 and S2, in which price information is called up and displayed, are only carried out after steps S3 and S4.
- the price per amount of energy is set at different levels.
- FIG. 3b shows further method steps which can be carried out after the actual charging process has been carried out.
- the method according to FIG. 3a enables a user 2, who is not previously known to the operator 1, to charge his electric vehicle on the charging device 10. This offers the user 2 great flexibility in the selection and use of the charging device 10.
- the unnecessary pre-registration with the operator 1 means that the operator 1 does not have any address or other contact information to give the user 2 after the charging process is complete Provide proof of the loading process and the money paid.
- a possible solution to this problem would be to provide the Ladevor device 10 with a receipt printer, which is possible in principle, but involves additional effort, in particular in the maintenance of the Ladevor device 10.
- the document management service 42 is instead executed in the operator cloud 4, which a user 2 can access after the loading process if required.
- a first step S11 sends a request to the document management service 42 in which he only provides details about the charging process known to him, for example a location of the charging station, possibly at least an approximate one Time of the loading process and at least part of a card or bank account number via which the loading process was billed.
- This information is evaluated in a step S12 by the document management service 42 and a suitable data record is searched for from a database maintained within the document management service 42 on recorded loading processes and a document is created from this data record.
- This procedure assumes that information about loading processes has already been transmitted from the loading device 10 to the document management service 42 after their completion.
- a request for a suitable data record is only transmitted to the charging device 10 and, in particular, its sequence control 12 when required, and is then called up from the database 13 there as required.
- the receipt is then sent to the application 3 in a step S13.
- the user 2 can electronically archive the document or, if necessary, print it out.
- the underlying data packets themselves are reproduced in the version in which they were created by the signature unit 113, so that the user 2 has the option of verifying the authenticity of the data on which the receipt is based th to check. This can be done, for example, within the application 3, in that the public key specified on the document is entered by the user or automatically read from the document and the authenticity of the data packets is checked. After this optional check of the authenticity of the data packet in a step S14, the method ends.
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Abstract
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Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102020115023.7A DE102020115023A1 (de) | 2020-06-05 | 2020-06-05 | Ladevorrichtung für Elektrofahrzeuge, System mit einer solchen Ladevorrichtung und Verfahren zum Betreiben einer derartigen Ladevorrichtung |
PCT/EP2021/057817 WO2021244786A1 (de) | 2020-06-05 | 2021-03-25 | Ladevorrichtung für elektrofahrzeuge, system mit einer solchen ladevorrichtung und verfahren zum betreiben einer derartigen ladevorrichtung |
Publications (1)
Publication Number | Publication Date |
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EP4162436A1 true EP4162436A1 (de) | 2023-04-12 |
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ID=75339742
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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EP21715863.3A Withdrawn EP4162436A1 (de) | 2020-06-05 | 2021-03-25 | Ladevorrichtung für elektrofahrzeuge, system mit einer solchen ladevorrichtung und verfahren zum betreiben einer derartigen ladevorrichtung |
Country Status (3)
Country | Link |
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EP (1) | EP4162436A1 (de) |
DE (1) | DE102020115023A1 (de) |
WO (1) | WO2021244786A1 (de) |
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Publication number | Priority date | Publication date | Assignee | Title |
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DE102022119461A1 (de) | 2022-08-03 | 2024-02-08 | Reev Gmbh | Verfahren zum Betreiben eines Ladestandorts und Ladestandort-Terminal |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
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KR101173415B1 (ko) * | 2010-05-11 | 2012-08-10 | 엘에스산전 주식회사 | 에너지 표시장치 및 그 방법 |
DE102011122498A1 (de) * | 2011-12-29 | 2013-07-04 | Elektro-Bauelemente Gmbh | Ladestation zur Bereitstellung elektrischer Energie für Fahrzeuge und Verfahren zum Betrieb der Ladestation |
DE102019201257A1 (de) * | 2018-01-31 | 2019-08-01 | Bob Holding Gmbh | Verfahren zur Überprüfung eines von einem Energiezähler bereitgestellten Zählerstandes sowie entsprechendes Ladesystem |
-
2020
- 2020-06-05 DE DE102020115023.7A patent/DE102020115023A1/de active Pending
-
2021
- 2021-03-25 WO PCT/EP2021/057817 patent/WO2021244786A1/de active Application Filing
- 2021-03-25 EP EP21715863.3A patent/EP4162436A1/de not_active Withdrawn
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Publication number | Publication date |
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DE102020115023A1 (de) | 2021-12-09 |
WO2021244786A1 (de) | 2021-12-09 |
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