# US 2022/0032804 A1 · Power distribution and communications for electric vehicle

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- Number: US 2022/0032804 A1
- Document ID: US20220032804A1
- Status: Published application
- Kind: A1
- Application number: 16/983,853
- Filed: 2020-08-03
- Published: 2022-02-03
- Earliest claimed: 2020-08-03
- Assignees: Cisco Technology, Inc.
- Applicants: Cisco Technology, Inc.
- Inventors: Joel Richard Goergen; Kameron Rose Hurst; Sean Ceballos-McGee; Anant Thakar; Robert Gregory Twiss; Ronald Lee Shaffer, II; Jared Pendleton; Chad M. Jones
- Web page: https://patentgrep.com/patent/US20220032804A1

## CPC

- B60L 53/65: involving identification of vehicles or their battery types
- B60L 53/66: Data transfer between charging stations and vehicles
- G06F 21/44: Program or device authentication
- G06F 21/445: {by mutual authentication, e.g. between devices or programs}
- H02J 3/322: {the battery being on-board an electric or hybrid vehicle, e.g. vehicle to grid arrangements [V2G], power aggregation, use of the battery for network load balancing, coordinated or cooperative battery charging}
- H02J 7/42: with electronic devices having internal batteries, e.g. mobile phones
- 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 7/60: including safety or protection arrangements
- H04L 12/10: Current supply arrangements
- H04L 63/08: {for authentication of entities (cryptographic mechanisms or cryptographic arrangements for entity authentication H04L9/32)}
- H04L 67/10: in which an application is distributed across nodes in the network (software deployment G06F8/60; multiprogramming arrangements G06F9/46)
- H04L 67/12: specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
- 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 90/12: Electric charging stations
- 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 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)
- H02J: ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M)
- 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

In one embodiment, an electric vehicle system includes a power system for charging a battery installed in an electric vehicle and comprising a bi-directional power and data connector for receiving power and data from or transmitting the power and data to an electric vehicle charging device, a communications system comprising a server and configured for receiving power from the power system and receiving data from or transmitting the data to the power system for download or upload at the electric vehicle charging device, and an authentication module for authenticating the electric vehicle charging device. A method is also disclosed herein.

## Claims

### Claim 1

An electric vehicle system comprising:
a power system for charging a battery installed in an electric vehicle and comprising a bi-directional power and data connector for receiving power and data from or transmitting the power and data to an electric vehicle charging device;
a communications system comprising a server and configured for receiving power from the power system and receiving data from or transmitting the data to the power system for download or upload at the electric vehicle charging device; and
an authentication module for authenticating the electric vehicle charging device.

### Claim 2 (depends on 1)

The electric vehicle system of claim 1 wherein the bi-directional power and data connector is operable to receive and transmit the power and data together on at least one wire pair.

### Claim 3 (depends on 1)

The electric vehicle system of claim 1 wherein the power and data is transmitted using pulse power comprising a plurality of high voltage pulses with safety testing between said high voltage pulses.

### Claim 4 (depends on 1)

The electric vehicle system of claim 1 further comprising an electric vehicle motor configured to receive and transmit the power and data.

### Claim 5 (depends on 1)

The electric vehicle system of claim 1 further comprising a power converter for converting the power and data to Power over Ethernet for use by electrical components at the electric vehicle.

### Claim 6 (depends on 1)

The electric vehicle system of claim 1 further comprising a second authentication module for performing authentication between the power system and the communications system.

### Claim 7 (depends on 1)

The electric vehicle system of claim 1 wherein the power system and the communications system are in communication over a bi-directional power and data connection.

### Claim 8 (depends on 1)

The electric vehicle system of claim 1 wherein the power system and the communications system are in communication over a 1 Gigabit Ethernet or higher data connection.

### Claim 9 (depends on 1)

The electric vehicle system of claim 1 wherein the server comprises a plurality of servers operable to upload and download the data to and from an electric vehicle data center over the bi-directional power and data connector.

### Claim 10 (depends on 1)

The electric vehicle system of claim 1 wherein the bi-directional power and data connector is configured to transmit or receive multi-phase pulse power.

### Claim 11 (depends on 1)

The electric vehicle system of claim 1 wherein the power system is coupled to an electric motor device and an electrical component device for transmitting the data and power to or receiving the data and power from an electric vehicle motor and electrical components, wherein each of the electric motor device and the electrical component device comprises another authentication module for authenticating with the power system.

### Claim 12

A system comprising:
a bi-directional power and data connector installed in an electric vehicle for receiving or transmitting power and data on wires coupled to an electric vehicle charging device and charging a battery installed in the electric vehicle;
a power and data distribution system coupled to the bi-directional power and data connector for transmitting or receiving the power and data to or from one or more of a server, an electric motor, or electrical components installed in the electric vehicle; and
an authentication system for performing authentication between the power and data distribution system and a power and data system coupled to one or more of the server, the electric motor, or the electrical components.

### Claim 13 (depends on 12)

The system of claim 12 wherein the bi-directional power and data connector is operable to receive and transmit the power and data together on at least one wire pair.

### Claim 14 (depends on 12)

The system of claim 12 wherein the power and data is transmitted using pulse power comprising a plurality of high voltage pulses with safety testing between said high voltage pulses.

### Claim 15 (depends on 12)

The system of claim 12 further comprising a power converter for converting the power and data to Power over Ethernet for use by the electrical components at the electric vehicle.

### Claim 16 (depends on 12)

The system of claim 12 wherein the power and data transmitted by the power distribution system to the power and data system for the server, electric motor, and electrical components comprises fault managed power.

### Claim 17 (depends on 12)

The system of claim 12 wherein the power and data distribution system is operable to transmit data to the server over a Gigabit Ethernet data connection.

### Claim 18

A method comprising:
receiving fault managed power at an electric vehicle;
performing authentication between a power system at the electric vehicle and an electric vehicle charging device;
charging a battery at the electric vehicle upon passing said authentication at the power system;
performing authentication at a communications system; and
transferring data between a server at the communications system and the electric vehicle charging device upon passing said authentication at the communications system.

### Claim 19 (depends on 18)

The method of claim 18 wherein the fault managed power comprises single phase pulse power with testing performed between high voltage pulses.

### Claim 20 (depends on 18)

The method of claim 18 wherein the fault managed power comprises multi-phase pulse power with testing performed between high voltage pulses.
