# US 12,223,795 B2 · Methods, apparatuses and computer program products for requesting user authorization and responding to requested user authorization for electric vehicle charging sessions > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,223,795 B2 - Document ID: US12223795B2 - Status: Granted - Kind: B2 - Application number: 17/442,060 - Filed: 2020-03-26 - Published: 2022-06-02 - Granted: 2025-02-11 - Earliest claimed: 2019-03-27 - Assignees: Liikennevirta Oy / Virta Ltd - Applicants: Liikennevirta Oy / Virta Ltd - Inventors: Jussi Ahtikari - Web page: https://patentgrep.com/patent/US12223795B2 ## CPC - G07F 15/005: {dispensed for the electrical charging of vehicles (electrical charging as such, B60L50/00)} - G06K 7/10297: {arrangements for handling protocols designed for non-contact record carriers such as RFIDs NFCs, e.g. ISO/IEC 14443 and 18092 (cryptographic protocols H04L9/00; network security protocols H04L63/00; real-time communication protocols in data switching networks H04L65/00; network protocols for data switching network services H04L67/00)} - G06K 7/10366: {the interrogation device being adapted for miscellaneous applications} - B60L 53/305: {Communication interfaces} - Y02T 90/16: Information or communication technologies improving the operation of electric vehicles - Y04S 30/14: Details associated with the interoperability, e.g. vehicle recognition, authentication, identification or billing - G07F: COIN-FREED OR LIKE APPARATUS (coin sorting G07D3/00; coin testing G07D5/00; {handling coins or paper currencies apart from payment activated apparatus G07D; payment architectures, schemes or protocols G06Q20/00}) - G06K: GRAPHICAL DATA READING (image or video recognition or understanding G06V); PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS - B60L: PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES (arrangements or mounting of electrical propulsion units or of plural diverse prime-movers for mutual or common propulsion in vehicles B60K1/00, B60K6/20; arrangements or mounting of electrical gearing in vehicles B60K17/12, B60K17/14; preventing wheel slip by reducing power in rail vehicles B61C15/08; dynamo-electric machines H02K; control or regulation of electric motors H02P); SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES (electric coupling devices combined with mechanical couplings of vehicles B60D1/64; electric heating for vehicles B60H1/00); ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL (control or regulation of electric motors H02P); MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES - Y02T: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION - 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 ## Abstract The present disclosure relates generally to electric vehicles, and more specifically to methods, apparatuses, and computer program products for requesting user authorization for electric vehicle charging sessions and responding to the requested user authorization. The methods, apparatuses, and computer program products described herein allow a user of an EV to use his/her single already-existing physical electronic key in order for him/her to be authorized for EV charging sessions at EV charging stations of different charging service providers. By so doing, it is possible to avoid the need to produce and mail new physical electronic keys each intended to be used at the EV charging stations of a different charging service provider, thereby significantly reducing the time of the user authorization. ## Claims ### Claim 1 A method for requesting user authorization for electric vehicle (EV) charging sessions, comprising: determining that an EV is at an EV charging station of interest by using an application installed either on a user mobile device that is at the same location as the EV or on equipment of the EV charging station, the EV charging station having a station identifier (ID); and requesting, by using the application, the user authorization for the EV charging sessions at the EV charging station; wherein said requesting the user authorization comprises: requesting, by using the application, a user of the EV to apply an available physical electronic key having a key ID to a key reader arranged at the EV charging station, thereby retrieving the key ID of the available physical electronic key, the available physical electronic key being provided to the user by a third party rather than a charging service provider serving the EV charging station; sending, by using the application, a user request to the charging service provider for linking the available physical electronic key to a user account pre-created in a database of user accounts resided on the charging service provider's side, the user account being characterized by a user ID, the user request comprising the station ID of the EV charging station, the user ID, the key ID of the available physical electronic key, and said linking comprises storing the key ID in the user account; and receiving, by using the application and from the charging service provider, a notification of user authorization or non-authorization for the EV charging sessions at the EV charging station based on whether the available physical electronic key has been linked to the user account. ### Claim 2 (depends on 1) The method of claim 1, wherein the available physical electronic key comprises a smart card, Radio Frequently Identification (RFID) card, Near Field Communication (NFC) token, or Bluetooth token, and wherein the key reader comprises a card reader or a token reader. ### Claim 3 (depends on 1) The method of claim 1, wherein said determining comprises, when the application is installed on the user mobile device: by using the application: locating the user mobile device; selecting the EV charging station which is the closest to the user mobile device; and requesting the user of the EV to confirm the selection of the closest EV charging station. ### Claim 4 (depends on 3) The method of claim 3, further comprising: by using the application: if the user of the EV cancels the selection of the closest EV charging station, providing the user of the EV with a list of available EV charging stations in the vicinity of the user mobile device; and requesting the user of the EV to select the EV charging station of interest manually. ### Claim 5 (depends on 4) The method of claim 4, further comprising: triggering a repeating countdown timer in the application; and repeating said requesting the user to confirm the selection of the closest EV charging or to select the EV charging station of interest manually every time there is no confirmation of the closest EV charging station or no selection of one other of the list of available EV charging stations before the expiration of the repeating countdown timer. ### Claim 6 (depends on 1) The method of claim 1, further comprising, after said requesting the user of the EV to apply the available physical electronic key: triggering a repeating countdown timer in the application; and repeating said requesting every time the user does not apply the available physical electronic key before the expiration of the repeating countdown timer. ### Claim 7 (depends on 1) The method of claim 1, further comprising, if the notification of user authorization for the EV charging sessions is received: notifying, by using the application, the user that he/she is authorized to use the EV charging station for recharging the EV from now on by merely applying the physical electronic key reader. ### Claim 8 A method for responding to requested user authorization for electric vehicle (EV) charging sessions, comprising: receiving a user request for user authorization for the EV charging sessions at an EV charging station of interest, the user request being sent by a user of an EV using an application installed either on a user mobile device that is at the same location as the EV to be recharged or on equipment of the EV charging station; determining whether the user should be authorized for the EV charging sessions at the EV charging station; and based on said determining, notifying the user and the EV charging station about the user authorization or non-authorization; wherein the user request relates to linking an available physical electronic key belonging to the user to a pre-created user account, the available physical electronic key being provided to the user by a third party rather than a charging service provider serving the EV charging station, the user account being characterized by a user ID and pre-created in a database of user accounts resided on the charging service provider's side, wherein the user request comprises a station ID of the EV charging station, the user ID, and a key ID of the available physical electronic key, the key ID being retrieved by applying the available physical electronic key to a key reader arranged at the EV charging station, and wherein said determining comprises: checking whether the user request meets a pre-defined linking criterion; based on said checking, deciding whether to link the available physical electronic key to the user account, said linking comprising storing the key ID in the user account. ### Claim 9 (depends on 8) The method of claim 8, wherein the available physical electronic key comprises a smart card, Radio Frequency Identification (RFID) card, Near Field Communication (NFC) token, or Bluetooth token, and wherein the key reader comprises a card reader or a token reader. ### Claim 10 (depends on 8) The method of claim 8, wherein the pre-defined linking criterion is as follows: the user account does not comprise the same key ID as the retrieved key ID of the available physical electronic key. ### Claim 11 (depends on 10) The method of claim 10, wherein said checking comprises verifying that the user request does not meet the pre-defined linking criterion; said deciding comprises deciding not to link the available physical electronic key to the user account; and said notifying comprises notifying the user and the EV charging station of interest about the user authorization. ### Claim 12 (depends on 10) The method of claim 10, wherein said checking comprises verifying that the user request meets the pre-defined linking criterion; said deciding comprises dividing to link the available physical electronic key to the user account; and said notifying comprises notifying the user and the EV charging station of interest about the user authorization. ### Claim 13 (depends on 8) The method of claim 8, wherein said receiving comprises: storing the station ID, the user ID, the key ID, a reception time of the user request, and a pre-defined expiration time of the user request as a new record in a database of user requests; and marking the user request as being processed until the expiration time of the user request is over. ### Claim 14 (depends on 13) The method of claim 13, wherein the pre-defined linking criterion comprises the following sub criteria: (i) the user account does not comprise the same key ID as the retrieved key ID of the available physical electronic key; (ii) the database of user requests comprises the record corresponding to the user request from the user of the EV; and (iii) the user request is still marked as being processed. ### Claim 15 (depends on 14) The method of claim 14, wherein said checking comprises verifying that sub-criteria (i)-(iii) are all met; said deciding comprises deciding to link the available physical electronic key to the user account; and said notifying comprises notifying the user and the EV charging station of interest about the user authorization. ### Claim 16 (depends on 14) The method of claim 14, wherein said checking comprises verifying that sub-criterion (i) is met, but any one of sub-criteria (ii) and (iii) is not met; said deciding comprises deciding not to link the available physical electronic key to the user account; and said notifying comprises notifying the user and the EV charging station of interest about the user non-authorization. ### Claim 17 (depends on 8) The method of claim 8, wherein the user account is further characterized by an account balance, and wherein the method further comprises: disabling the user authorization for the EV charging sessions if the account balance is not enough to cover the costs for the next EV charging session; and notifying the user of the EV that the user authorization will be enabled upon refilling the account balance. ### Claim 18 (depends on 1) An apparatus for requesting user authorization for electric vehicle (EV) charging sessions, comprising: at least one processor; and a memory coupled to the at least one processor and storing processor-executable instructions, wherein the processor-executable instructions, when executed by the at least one processor, cause the at least one processor to perform the method of claim 1. ### Claim 19 (depends on 8) An apparatus for responding to requested user authorization for electric vehicle (EV) charging sessions, comprising: at least one processor; and a memory coupled to the at least one processor and storing processor-executable instructions, wherein the processor-executable instructions, when executed by the at least one processor, cause the at least one processor to perform the method of claim 8. ### Claim 20 (depends on 1) A computer program product comprising a non-transitory computer-readable storage medium storing a computer program which, when executed by at least one processor, causes the at least one processor to perform the method of claim 1. ### Claim 21 (depends on 8) A computer program product comprising a non-transitory computer-readable storage medium storing a computer program which, when executed by at least one processor, causes the at least one processor to perform the method of claim 8.