ELECTRIC VEHICLE CHARGING SYSTEM AND METHOD

• US 20130154562A1
• Filed: 12/06/2012
• Published: 06/20/2013
• Est. Priority Date: 12/14/2011
• Status: Active Grant

• Current Assignee: NXP B.V. (NXP Semiconductors NV)
• Original Assignee: NXP B.V. (NXP Semiconductors NV)
• Inventors: Szostek, Lukasz, Brands, Jan Rene
• Granted Patent: US 9,337,679 B2
• Time in Patent Office: Days
• US Class Current: 320/109
• CPC Class Codes: B60L 2270/36 of vehicles
• CPC Class Codes: B60L 53/66 Data transfer between charging stations and vehicles
• CPC Class Codes: B60L 53/665 Methods related to measuring, billing or payment
• CPC Class Codes: Y02T 10/70 Energy storage systems for electromobility, e.g. batteries
• CPC Class Codes: Y02T 10/7072 Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
• CPC Class Codes: Y02T 90/12 Electric charging stations
• CPC Class Codes: Y02T 90/14 Plug-in electric vehicles
• CPC Class Codes: Y02T 90/16 Information or communication technologies improving the operation of electric vehicles
• CPC Class Codes: 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]
• CPC Class Codes: Y04S 30/14 Details associated with the interoperability, e.g. vehicle recognition, authentication, identification or billing

Abstract

The invention provides an electric vehicle charging system in which the charging station and the vehicle each have a power transfer measurement unit, and a communication system for communicating data at least from the vehicle to the station. The power delivery is controlled based on a comparison of power transfer measurements made by the charging station and by the electric vehicle control system.

Claims

3-1. A system as claimed in claim 1, wherein:

the vehicle payment module is in the vehicle and the station payment module is in the station;

or

the vehicle payment module and the station payment module are in the station, with a payment card interface for the user to the vehicle payment module.

4-2. An electric vehicle for using the electric vehicle charging system of claim 1, comprising the charging monitor control system which comprises the power transfer measurement unit and the communication system for communicating with the charging station.

6. A method of controlling delivery of electric power to an electric vehicle at a charging system, comprising:

delivering power from a charging station and measuring the power delivered;

receiving power in the electric vehicle and measuring the received power delivered;

implementing communication between the electric vehicle and the charging station;

controlling the power delivery from the charging station to the electric vehicle based on a comparison of the power delivery measurements,

transferring funds from a vehicle payment module to station payment module;

implementing the power delivery in increments, and implementing the funds transfer in corresponding increments.

7. A method as claimed in claim 6, comprising interrupting power transfer if a discrepancy is found between the power delivery measurements.

10. (canceled)

11. (canceled)