DE102012106499A1 - Method for authentication at loading stations, involves generating loading station- and loading parameter specific request number through loading station , and providing request number to user - Google Patents

Abstract

The method involves generating (102) a loading station- and loading parameter specific request number through a loading station (117), and providing (109) the request number to a user (116). The request number is transmitted (111) at a central station (118) by the user. A transaction authentication number is generated based on the request number in the central station. The transaction authentication number is transmitted to the user. The transaction authentication number is provided (113) to the loading station by the user. An independent claim is included for a system for authentication at loading stations.

Description

The invention relates to a method and system for authentication at charging stations. More particularly, the invention relates to a method and system for authentication at charging stations for electrically powered vehicles.

Previous access procedures for charging stations are based u. a. solutions that require an integrated communication interface, such as IP-based communication or debit and credit card technology.

DE 4414008 C2 relates to a charging station having a card reader, the associated card containing information about the user and the motor vehicle.

Such solutions require charging stations equipped with communication technology, thereby incurring one-time costs for communication modules and running costs for the maintenance of communication links.

In addition, there are solutions in which a communication interface in the vehicle is used to transfer relevant user or billing information.

DE 10 2011 101 535 A1 relates to a system for charging batteries for vehicles, comprising a charging device which is arranged and intended to charge a battery arranged in a vehicle, a charging control device which is adapted and intended to perform an authentication of the vehicle and, upon successful authentication, the charging device unlock. Furthermore, an authentication device is provided, which is arranged in the vehicle and is set up and intended to authenticate the vehicle to the charging control device. In addition, a server is provided, which is designed to provide authentication data, and the authentication device is set up and provided to receive the authentication data from the server and to transmit it to the charging control device.

DE 10 2009 043 306 A1 "Monitoring system and method for monitoring energy transfer between a first energy unit and a second energy unit" relates to an RFID identification based system and method.

DE 10 2010 009 583 A1 relates to a method for location-independent power reference and / or location-independent power supply of a mobile storage and consumption unit (vehicle) at a fixed charging station any station operator, wherein a plurality of charging stations of a power distribution system operator are supplied with power from a station supplier. For this purpose, a communication link between charging station and mobile storage and consumption unit and a further communication connection between the mobile storage and consumption unit and billing server, in which the mobile storage and consumption unit is registered, is provided.

While the integration of these systems is feasible for large electric vehicles such as cars and scooters, it is not practical for smaller electric vehicles such as bicycles. In addition, additional costs for the communication interface in the vehicle.

An authentication can also be done with black / white lists of the corresponding users or their characteristics in the charging station. However, this solution has a very high maintenance and is only practical for a system with few charging stations. In addition, the timeliness of black and white lists is not to be granted sufficiently.

Furthermore, TAN methods are known. By requesting a TAN, the transaction intended by the user is authorized. A user management in the charging station, however, is subject to the same maintenance problem as a blacklist / whitelist and is therefore not practical. In addition, a TAN can only be used to authorize a loading process. However, the user must already be authenticated to the system.

Authentication procedures are also known in connection with ticketing systems in local public transport. These include, for example, SMS procedures, telephone call procedures such as voice menu or DTMF and data communication via mobile phone. These methods are based on defined strings which are transmitted to the accounting system via a communication channel. However, these methods can not be used directly for authentication at charging stations, since the character strings are known and thus can be sent as often as desired. At a charging station, however, such replays are to be excluded in order to avoid manipulation and to protect users from overbooking. Also, charging station and tariff information can not be coupled back to the charging station operator with TAN-based procedures.

It is an object of the invention to provide a method and system for authentication at charging stations that is reliable and safe.

This object is achieved by a method according to the independent method claim and a system according to the independent system claim. The dependent claims relate to particular embodiments.

• a) Generieren einer ladestations- und ladeparameterspezifischen Anforderungsnummer durch die Ladestation und Bereitstellen der Anforderungsnummer an einen Nutzer;
• b) Übermitteln der Anforderungsnummer an eine Zentrale durch den Nutzer;
• c) Generieren einer TAN auf Grundlage der Anforderungsnummer in einer Zentrale;
• d) Übermitteln der TAN an den Nutzer;
• e) Bereitstellen der TAN an die Ladestation durch den Nutzer;
• f) Überprüfen der TAN durch die Ladestation;
• g) Ausgeben des Überprüfungsergebnisses an der Ladestation;
• h) Auslösen einer Schaltfunktion zum Freischalten oder Sperren einer Medienentnahme an der Ladestation.

The invention relates to a method for authentication at charging stations, comprising the following steps:

• a) generating a charging station and loading parameter-specific request number by the charging station and providing the request number to a user;
• b) transmitting the request number to a center by the user;
• c) generating a TAN based on the request number in a center;
• d) transmitting the TAN to the user;
• e) providing the TAN to the charging station by the user;
• f) checking the TAN by the charging station;
• g) outputting the result of the check at the charging station;
• h) triggering a switching function for enabling or blocking a media removal at the charging station.

The media withdrawal concerns media as energy sources, such as electricity, gas, gasoline, diesel. The term charging station is to be interpreted broadly in the sense of a media reference station.

Preferably, the request number is limited in time. This is valid only within a certain period.

The user authentication according to steps a) to h) can be carried out for the registration or deregistration of a user at a charging station. A deregistration of the user is required if he has booked a certain period of time for the purchase of electricity from a charging point, but his energy storage is full before reaching this period of time or the user arrives at the vehicle after this period of time.

In one embodiment of the method, it is provided that in the event that the check has resulted in a valid TAN, a charging point for the supply of electricity will be released in the event that a user has registered for the purchase of electricity. In this case, it is preferable to lock the charging cable to the charging station during the charging process for the purpose of theft prevention.

Alternatively, if the check result is positive, the charging point is switched off by the power supply in the event that the user has logged out. In this case, a previously locked charging cable is unlocked.

In one refinement of the method, it is provided that for the generation of the charging station and charging parameter-specific request number, charging-parameter-specific information, such as the desired charging duration and charging connection point, is provided by the user. This can be done by entering the loading-parameter-specific information at the charging station. Alternatively, this information can be transmitted via a suitable interface (NFC, Bluetooth) from a mobile phone to the charging station.

In one embodiment of the method, it is provided that the charging station and load parameter-specific request number is time-slot-coded with secret parameters. The request number encodes all relevant charging station and charging parameter-specific information, such as charging station ID, tariff and charging connection point. The charging station and load parameter-specific parameters that are encoded in the request number can be extended as required. In addition, the request number is encoded with secret parameters before publication to the user, so that number duplications can occur only within one transaction time slot. In this way, manipulations of request number at the charging station, in particular in contrast to glued transaction numbers can be excluded.

In one embodiment of the method, it is provided that the transmission of the request number to the control center by the user and the transmission of the TAN to the user by means of a mobile terminal, preferably a mobile phone or smartphone. The coded request number can be read by the user from the charging station display and transmitted via a mobile terminal to the control center. Alternatively, the request number can be transmitted via a suitable interface (Bluetooth, NFC, QR code) from the charging station to the mobile terminal of the user and then the central office can be transmitted by means of the mobile terminal. The TAN generated by the center is also transmitted to this mobile terminal. These process steps directed at the use of a mobile terminal can preferably be realized with a suitable app. Thus, the method is independent of the communication channel. The communication channel is provided by the user and his mobile terminal. Additional communication technology at the charging stations is thus eliminated.

In one embodiment of the method, it is provided that in the control center a comparison of user data communicated by the user takes place with user data present in the center, and wherein preferably a credit check of the user is made.

The control center must have the loading-parameter-specific information for this purpose.

In one embodiment of the method, it is provided that the user data available in the center are provided by offline registration of the user at the central office before the start of the authentication at the charging station, d. H. the user must register at the control center before using the charging station. Alternatively, the user data available at the central office can be provided by online registration during the authentication at the charging station, i. H. the user registers for the first time during the authentication at the central office, for example by specifying his credit card information.

The head office must also have information relevant to billing.

In one embodiment of the method, provision is made for billing to be carried out in the control center on the basis of the request number and the billing information present in the control center.

After comparing the user data, the control center generates a time-limited TAN based on the received requirements. The generated TAN is transferred from the center to the user's mobile terminal. The user can enter the received TAN on the operating unit of the charging station and is then authenticated and authorized by the charging station.

Furthermore, there are various requirements in the charging station at the time of request number generation and after authentication and authorization to ensure unique authentication and authorization for the charging station.

The invention also relates to a system for authentication at charging stations, which has a charging station with at least one charging point and a center, said charging station means for generating a charging station and load-specific time slot-dependent coded request number, means for checking a TAN and means for enabling / disabling a Has media removal and wherein the center has means for generating the TAN.

In one embodiment of the system it is provided that the charging station has the same means for generating an internal TAN as in the center for generating the TAN and the means for checking the TAN are designed as means for comparing TAN and internal TAN.

The invention will be explained in more detail below with reference to an embodiment with reference to a figure. It shows 1 a program flowchart of an authentication method.

The authentication before loading is in 1 shown. A user 116 , which is located at a charging station 117 authenticate, triggers the authentication process by an initial trigger 101 at the charging station 117 out. The charging station then generates a query 102 in terms of operation mode (start / stop loading). The user 116 select the start loading mode, step 103 , The charging station subsequently generates a query 104 regarding the specific parameter charging point. The charging point is by the user 116 entered, step 105 , After entering the charging point, the charging station generates 117 another query 106 with regard to the charging time, whereupon the desired charging time is entered by the user, step 107 , The charging station then generates a request number, step 108 , The request number encodes all relevant charging station and load parameter specific information provided in the previous steps. The request number is additionally coded with secret parameters. The user 116 the so-called request number is displayed, step 109 , The charging station then waits for input of a TAN, step 110 , The user 116 sends the request number to an external service provider 118 , Step 111 , for example by means of a mobile phone. The user 116 is with the external service provider 118 registered. The external service provider 118 The information relevant for billing is available. The external service provider 118 generates a TAN on the basis of the request number by evaluating the parameters coded in the request number and transmits this to the user, step 112 The user enters the TAN at the charging station 117 a step 113 , In the charging station 117 The same algorithm for generating the TAN exists as for the external service provider 118 , The entered TAN is checked in the charging station by comparison with the internally generated TAN, step 114 , The verification result will then be the user 116 displayed, step 115 , In the case of a positive test result, the charging point will release for the desired charging time. At this power is provided.

The inventive method can au au other Beladearten such. As gas stations apply. Another beneficial use is seen in parking columns. A particularly advantageous use is the combination of Electric charging stations with parking columns, as they are already available in the public transport area. The parking columns usually have their own power supply and can be easily converted to the charging station with the method and system according to the invention. In this way, the time during parking, in which the car is not already in operation, can be used to make sense sense. A construction of a costly parallel infrastructure for powering electric vehicles can thus be avoided.

Advantages of the invention are a clear for the charging station user authentication at start of charging and end of charge without communication module in the charging station. The charging station can thus be done via widespread commercial mobile devices such as mobile phones or smartphones. The invention also enables a charging-parameter-specific billing as well as charging station, user and transaction-specific charging and charging point selection. Replays and manipulation by users or outsiders are avoided, improper booking of a charging station or a charging point as well. The invention also allows a statistical evaluation of charging, u. a. regarding specific charging stations.

LIST OF REFERENCE NUMBERS

101-115

steps

116

user

117

charging station

118

external service provider, headquarters

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• DE 4414008 C2 [0003]
• DE 102011101535 A1 [0006]
• DE 102009043306 A1 [0007]
• DE 102010009583 A1 [0008]

Claims (12)

Method for authentication at charging stations comprising the following steps: a) Generating ( 108 ) a charging station and load parameter-specific request number by a charging station ( 117 ) and deploy ( 109 ) of the request number to a user ( 116 ); b) transmitting ( 111 ) of the request number to a central office ( 118 ) by the user ( 116 ); c) generating a TAN based on the request number in a central office ( 118 ); d) transmitting ( 112 ) the TAN to the user ( 116 ); e) Provide ( 113 ) the TAN to the charging station ( 117 ) by the user ( 116 ); f) Check ( 114 ) the TAN through the charging station ( 117 ); g) output ( 115 ) of the check result at the charging station ( 117 ); and h) triggering a switching function for enabling or disabling a media removal at the charging station. The method of claim 1, wherein the user authentication according to the steps a) to h) is carried out for the registration or deregistration of a user at a charging station. Method according to claim 2, wherein in the event that the check has resulted in a valid TAN, a charging point for the supply of electricity will be released in the event of a user's log-in or a charging point is disconnected from the power supply in the event of a log-off of the user ( 116 ). Method according to one of claims 1 to 3, wherein for the generation ( 108 ) of the charging station and charging parameter-specific request number provides charging-parameter-specific information such as desired charging time and charging connection point by the user ( 105 . 107 ) become. Method according to one of claims 1 to 4, wherein the loading station and load parameter-specific request number is time slot-dependent coded with secret parameters. Method according to one of claims 1 to 5, wherein the transmission ( 111 ) of the request number to the center by the user ( 116 ) and transmitting ( 112 ) the TAN to the user ( 116 ) by means of a mobile terminal, preferably a mobile phone or smartphone. Method according to one of claims 1 to 6, wherein in the center of a comparison by the user ( 116 ) communicated user data in the central office ( 118 ) user data is present. The method of claim 7, wherein a credit check of the user is made. Method according to one of claims 1 to 8, wherein in the central office ( 118 ) user data by offline registration of the user at the headquarters ( 118 ) prior to authentication or through online registration during authentication. Method according to one of claims 1 to 9, wherein in the center ( 118 ) a billing on the basis of the request number and in the center of existing billing information is made. System for authentication at charging stations, which has a charging station ( 117 ) with at least one charging point and a central station ( 118 ), wherein the charging station ( 117 ) Means for generating a charging station and load parameter-specific time slot-dependent coded request number, means for checking a TAN and means for enabling / disabling a media removal and wherein the control center ( 118 ) Has means for generating the TAN. System according to claim 11, wherein the charging station ( 117 ) the same means of generating an internal TAN as in the Central Office ( 118 ) for generating the TAN and the means for checking the TAN are designed as means for comparing TAN and internal TAN.

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