# US 10,500,968 B2 · System for charging an electric vehicle (EV)

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- Number: US 10,500,968 B2
- Document ID: US10500968B2
- Status: Granted
- Kind: B2
- Application number: 15/882,799
- Filed: 2018-01-29
- Published: 2018-07-12
- Granted: 2019-12-10
- Earliest claimed: 2014-12-02
- Assignees: Webasto Charging Systems, Inc.
- Applicants: AeroVironment, Inc.
- Inventors: Scott Ryan Shumaker; Lovlesh Tandon; Herman Joseph Steinbuchel, IV; Robert Salazar, Jr.; Larry Hayashigawa
- Web page: https://patentgrep.com/patent/US10500968B2

## CPC

- B60L 53/30: Constructional details of charging stations
- B60L 3/0069: {relating to the isolation, e.g. ground fault or leak current}
- B60L 3/04: Cutting off the power supply under fault conditions (protective devices and circuit arrangements in general H01H; H02H)
- B60L 53/16: Connectors, e.g. plugs or sockets, specially adapted for charging electric vehicles
- B60L 53/305: {Communication interfaces}
- B60L 53/63: in response to network capacity
- B60L 53/65: involving identification of vehicles or their battery types
- B60L 58/21: having the same nominal voltage
- G06F 21/31: User authentication
- G06F 21/34: involving the use of external additional devices, e.g. dongles or smart cards
- H04L 63/08: {for authentication of entities (cryptographic mechanisms or cryptographic arrangements for entity authentication H04L9/32)}
- H04W 12/06: Authentication
- H04W 12/068: {using credential vaults, e.g. password manager applications or one time password [OTP] applications}
- H04W 12/08: Access security
- B60L 2240/70: Interactions with external data bases, e.g. traffic centres
- H02J 7/47: Arrangements for checking compatibility or authentication between one component, e.g. a battery or a battery charger, and another component, e.g. a power source
- H02J 2105/37: exchanging power with electric vehicles [EV] or with hybrid electric vehicles [HEV]
- H04L 63/0853: {using an additional device, e.g. smartcard, SIM or a different communication terminal (cryptographic mechanisms or cryptographic arrangements for entity authentication involving additional secure or trusted devices H04L9/3234)}
- H04L 63/101: {Access control lists [ACL]}
- H04L 63/18: {using different networks or channels, e.g. using out of band channels (cryptographic mechanisms or cryptographic arrangements for key distribution involving distinctive intermediate devices or communication paths H04L9/0827; cryptographic mechanisms or cryptographic arrangements for authentication using a plurality of channels H04L9/3215)}
- H04W 4/40: for vehicles, e.g. vehicle-to-pedestrians [V2P]
- H04W 88/06: adapted for operation in multiple networks {or having at least two operational modes}, e.g. multi-mode terminals
- Y02D 30/70: in wireless communication networks
- Y02E 60/00: Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T 10/70: Energy storage systems for electromobility, e.g. batteries
- Y02T 10/7072: Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
- Y02T 10/72: Electric energy management in electromobility
- Y02T 90/12: Electric charging stations
- Y02T 90/14: Plug-in electric vehicles
- Y02T 90/16: Information or communication technologies improving the operation of electric vehicles
- Y02T 90/167: 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]
- Y04S 10/126: the energy generation units being or involving electric vehicles [EV] or hybrid vehicles [HEV], i.e. power aggregation of EV or HEV, vehicle to grid arrangements [V2G]
- Y04S 30/14: Details associated with the interoperability, e.g. vehicle recognition, authentication, identification or billing
- 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
- G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N)
- H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M)
- H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72)
- H02J: ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- Y02D: CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- 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

A method of charging an electric vehicle (EV) includes receiving a user's authentication code in an electric vehicle service equipment (EVSE) from a user's mobile device, comparing in the EVSE the user's authentication code to a whitelist having a plurality of authorized user authentication codes, and enabling an electric vehicle (EV) charging transaction serviced by the EVSE in response to the comparing of the user's authentication code to the whitelist so that a user's authentication code is authenticated to enable the EV charging transaction without concurrent access to an EVSE-related remote server.

## Claims

### Claim 1

A method of charging an electric vehicle (EV), comprising:
receiving a user's authentication code in a wireless interface module from a user's mobile device, the wireless interface module in communication with an electric vehicle service equipment (EVSE);
comparing in the wireless interface module the user's authentication code to a whitelist stored in the wireless interface module, the whitelist having a plurality of authorized user authentication codes;
enabling an EV charging transaction serviced by the EVSE in response to the comparing of the user's authentication code to the whitelist;
wherein the user's authentication code is authenticated to enable the EV charging transaction without concurrent access to an EVSE-related remote server;
providing power through a power cable in response to enabling the EV charging transaction;
receiving a second occurrence of the user's authentication code in the wireless interface module from the user's mobile device; and
sending by the wireless interface module an electrical current indication to the user's mobile device of a previous EV charging transaction in response to receiving the second occurrence of the user's authentication code.

### Claim 2 (depends on 1)

The method of claim 1, wherein the wireless interface module is selected from the group consisting of a Bluetooth wireless module and a Wi-Fi wireless module.

### Claim 3 (depends on 1)

The method of claim 1, wherein the user's authentication code is received in the wireless interface module directly from the user's mobile device.

### Claim 4 (depends on 1)

The method of claim 1, further comprising:
entering the user's authentication code into the user's-a mobile device;
establishing a wireless communication between the EVSE and the user's mobile device;
sending the user's authentication code from the user's mobile device to the EVSE; and
receiving in the user's mobile device a charge amount indication.

### Claim 5 (depends on 4)

The method of claim 4, wherein the charge amount indication is a current indication and current charge time.

### Claim 6 (depends on 4)

The method of claim 4, wherein the charge amount indication is a total power consumed indication.

### Claim 7 (depends on 4)

The method of claim 4, further comprising:
receiving in the user's mobile device an EVSE invitation to connect signal;
accepting the EVSE invitation to connect signal;
requesting by the user's mobile device an EV charge rate from a charge rate service provider; and
receiving the EV charge rate in the user's mobile device.

### Claim 8 (depends on 4)

The method of claim 4, wherein sending the user's authentication code from the user's mobile device to the EVSE is made in response to selection of a charge rate.

### Claim 9 (depends on 1)

The method of claim 1, wherein the wireless interface module is in communication with the EVSE via
a wireless personal area network (PAN) module of the EVSE, wherein
an EVSE control module is in electrical communication with the PAN module.

### Claim 10 (depends on 9)

The method of claim 9, wherein the PAN module is in communication with the EVSE control module through a pilot line in communication with the EVSE control module.

### Claim 11 (depends on 9)

The method of claim 9, wherein the EVSE control module comprises the PAN module.

### Claim 12 (depends on 9)

The method of claim 9, wherein an EVSE power relay is seated in an EVSE control box and the EVSE control box is detachably coupled to a power receptacle.

### Claim 13 (depends on 9)

The method of claim 9, wherein the PAN module is a Bluetooth interface module.

### Claim 14 (depends on 9)

The method of claim 9, wherein the PAN module is a Wi-Fi interface module.